3876 lines
123 KiB
C++
3876 lines
123 KiB
C++
// Scintilla source code edit control
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/** @file PlatWin.cxx
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** Implementation of platform facilities on Windows.
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**/
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// Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#include <cstddef>
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#include <cstdlib>
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#include <cstring>
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#include <cstdio>
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#include <cstdarg>
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#include <ctime>
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#include <cmath>
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#include <climits>
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#include <string_view>
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#include <vector>
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#include <map>
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#include <optional>
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#include <algorithm>
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#include <iterator>
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#include <memory>
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#include <mutex>
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// Want to use std::min and std::max so don't want Windows.h version of min and max
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#if !defined(NOMINMAX)
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#define NOMINMAX
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#endif
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#undef _WIN32_WINNT
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#define _WIN32_WINNT 0x0A00
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#undef WINVER
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#define WINVER 0x0A00
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#define WIN32_LEAN_AND_MEAN 1
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#include <windows.h>
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#include <commctrl.h>
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#include <richedit.h>
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#include <windowsx.h>
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#if !defined(DISABLE_D2D)
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#define USE_D2D 1
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#endif
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#if defined(USE_D2D)
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#include <d2d1.h>
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#include <dwrite.h>
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#endif
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#include "ScintillaTypes.h"
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#include "Debugging.h"
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#include "Geometry.h"
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#include "Platform.h"
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#include "XPM.h"
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#include "UniConversion.h"
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#include "DBCS.h"
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#include "WinTypes.h"
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#include "PlatWin.h"
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// __uuidof is a Microsoft extension but makes COM code neater, so disable warning
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#if defined(__clang__)
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#pragma clang diagnostic ignored "-Wlanguage-extension-token"
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#endif
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using namespace Scintilla;
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namespace Scintilla::Internal {
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UINT CodePageFromCharSet(CharacterSet characterSet, UINT documentCodePage) noexcept;
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#if defined(USE_D2D)
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IDWriteFactory *pIDWriteFactory = nullptr;
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ID2D1Factory *pD2DFactory = nullptr;
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D2D1_DRAW_TEXT_OPTIONS d2dDrawTextOptions = D2D1_DRAW_TEXT_OPTIONS_NONE;
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static HMODULE hDLLD2D {};
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static HMODULE hDLLDWrite {};
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void LoadD2DOnce() noexcept {
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DWORD loadLibraryFlags = 0;
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HMODULE kernel32 = ::GetModuleHandleW(L"kernel32.dll");
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if (kernel32) {
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if (::GetProcAddress(kernel32, "SetDefaultDllDirectories")) {
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// Availability of SetDefaultDllDirectories implies Windows 8+ or
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// that KB2533623 has been installed so LoadLibraryEx can be called
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// with LOAD_LIBRARY_SEARCH_SYSTEM32.
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loadLibraryFlags = LOAD_LIBRARY_SEARCH_SYSTEM32;
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}
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}
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typedef HRESULT (WINAPI *D2D1CFSig)(D2D1_FACTORY_TYPE factoryType, REFIID riid,
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CONST D2D1_FACTORY_OPTIONS *pFactoryOptions, IUnknown **factory);
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typedef HRESULT (WINAPI *DWriteCFSig)(DWRITE_FACTORY_TYPE factoryType, REFIID iid,
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IUnknown **factory);
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hDLLD2D = ::LoadLibraryEx(TEXT("D2D1.DLL"), 0, loadLibraryFlags);
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D2D1CFSig fnD2DCF = DLLFunction<D2D1CFSig>(hDLLD2D, "D2D1CreateFactory");
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if (fnD2DCF) {
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// A single threaded factory as Scintilla always draw on the GUI thread
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fnD2DCF(D2D1_FACTORY_TYPE_SINGLE_THREADED,
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__uuidof(ID2D1Factory),
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nullptr,
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reinterpret_cast<IUnknown**>(&pD2DFactory));
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}
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hDLLDWrite = ::LoadLibraryEx(TEXT("DWRITE.DLL"), 0, loadLibraryFlags);
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DWriteCFSig fnDWCF = DLLFunction<DWriteCFSig>(hDLLDWrite, "DWriteCreateFactory");
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if (fnDWCF) {
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const GUID IID_IDWriteFactory2 = // 0439fc60-ca44-4994-8dee-3a9af7b732ec
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{ 0x0439fc60, 0xca44, 0x4994, { 0x8d, 0xee, 0x3a, 0x9a, 0xf7, 0xb7, 0x32, 0xec } };
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const HRESULT hr = fnDWCF(DWRITE_FACTORY_TYPE_SHARED,
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IID_IDWriteFactory2,
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reinterpret_cast<IUnknown**>(&pIDWriteFactory));
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if (SUCCEEDED(hr)) {
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// D2D1_DRAW_TEXT_OPTIONS_ENABLE_COLOR_FONT
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d2dDrawTextOptions = static_cast<D2D1_DRAW_TEXT_OPTIONS>(0x00000004);
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} else {
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fnDWCF(DWRITE_FACTORY_TYPE_SHARED,
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__uuidof(IDWriteFactory),
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reinterpret_cast<IUnknown**>(&pIDWriteFactory));
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}
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}
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}
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bool LoadD2D() {
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static std::once_flag once;
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std::call_once(once, LoadD2DOnce);
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return pIDWriteFactory && pD2DFactory;
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}
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#endif
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void *PointerFromWindow(HWND hWnd) noexcept {
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return reinterpret_cast<void *>(::GetWindowLongPtr(hWnd, 0));
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}
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void SetWindowPointer(HWND hWnd, void *ptr) noexcept {
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::SetWindowLongPtr(hWnd, 0, reinterpret_cast<LONG_PTR>(ptr));
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}
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namespace {
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// system DPI, same for all monitor.
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UINT uSystemDPI = USER_DEFAULT_SCREEN_DPI;
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using GetDpiForWindowSig = UINT(WINAPI *)(HWND hwnd);
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GetDpiForWindowSig fnGetDpiForWindow = nullptr;
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HMODULE hDLLShcore {};
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using GetDpiForMonitorSig = HRESULT (WINAPI *)(HMONITOR hmonitor, /*MONITOR_DPI_TYPE*/int dpiType, UINT *dpiX, UINT *dpiY);
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GetDpiForMonitorSig fnGetDpiForMonitor = nullptr;
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using GetSystemMetricsForDpiSig = int(WINAPI *)(int nIndex, UINT dpi);
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GetSystemMetricsForDpiSig fnGetSystemMetricsForDpi = nullptr;
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using AdjustWindowRectExForDpiSig = BOOL(WINAPI *)(LPRECT lpRect, DWORD dwStyle, BOOL bMenu, DWORD dwExStyle, UINT dpi);
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AdjustWindowRectExForDpiSig fnAdjustWindowRectExForDpi = nullptr;
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void LoadDpiForWindow() noexcept {
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HMODULE user32 = ::GetModuleHandleW(L"user32.dll");
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fnGetDpiForWindow = DLLFunction<GetDpiForWindowSig>(user32, "GetDpiForWindow");
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fnGetSystemMetricsForDpi = DLLFunction<GetSystemMetricsForDpiSig>(user32, "GetSystemMetricsForDpi");
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fnAdjustWindowRectExForDpi = DLLFunction<AdjustWindowRectExForDpiSig>(user32, "AdjustWindowRectExForDpi");
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using GetDpiForSystemSig = UINT(WINAPI *)(void);
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GetDpiForSystemSig fnGetDpiForSystem = DLLFunction<GetDpiForSystemSig>(user32, "GetDpiForSystem");
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if (fnGetDpiForSystem) {
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uSystemDPI = fnGetDpiForSystem();
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} else {
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HDC hdcMeasure = ::CreateCompatibleDC({});
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uSystemDPI = ::GetDeviceCaps(hdcMeasure, LOGPIXELSY);
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::DeleteDC(hdcMeasure);
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}
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if (!fnGetDpiForWindow) {
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hDLLShcore = ::LoadLibraryExW(L"shcore.dll", {}, LOAD_LIBRARY_SEARCH_SYSTEM32);
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if (hDLLShcore) {
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fnGetDpiForMonitor = DLLFunction<GetDpiForMonitorSig>(hDLLShcore, "GetDpiForMonitor");
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}
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}
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}
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HINSTANCE hinstPlatformRes {};
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constexpr Supports SupportsGDI[] = {
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Supports::PixelModification,
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};
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constexpr BYTE Win32MapFontQuality(FontQuality extraFontFlag) noexcept {
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switch (extraFontFlag & FontQuality::QualityMask) {
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case FontQuality::QualityNonAntialiased:
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return NONANTIALIASED_QUALITY;
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case FontQuality::QualityAntialiased:
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return ANTIALIASED_QUALITY;
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case FontQuality::QualityLcdOptimized:
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return CLEARTYPE_QUALITY;
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default:
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return DEFAULT_QUALITY;
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}
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}
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#if defined(USE_D2D)
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constexpr D2D1_TEXT_ANTIALIAS_MODE DWriteMapFontQuality(FontQuality extraFontFlag) noexcept {
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switch (extraFontFlag & FontQuality::QualityMask) {
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case FontQuality::QualityNonAntialiased:
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return D2D1_TEXT_ANTIALIAS_MODE_ALIASED;
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case FontQuality::QualityAntialiased:
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return D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
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case FontQuality::QualityLcdOptimized:
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return D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE;
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default:
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return D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
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}
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}
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#endif
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// Both GDI and DirectWrite can produce a HFONT for use in list boxes
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struct FontWin : public Font {
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virtual HFONT HFont() const noexcept = 0;
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};
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void SetLogFont(LOGFONTW &lf, const char *faceName, CharacterSet characterSet, XYPOSITION size, FontWeight weight, bool italic, FontQuality extraFontFlag) {
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lf = LOGFONTW();
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// The negative is to allow for leading
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lf.lfHeight = -(std::abs(std::lround(size)));
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lf.lfWeight = static_cast<LONG>(weight);
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lf.lfItalic = italic ? 1 : 0;
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lf.lfCharSet = static_cast<BYTE>(characterSet);
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lf.lfQuality = Win32MapFontQuality(extraFontFlag);
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UTF16FromUTF8(faceName, lf.lfFaceName, LF_FACESIZE);
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}
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struct FontGDI : public FontWin {
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HFONT hfont = {};
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FontGDI(const FontParameters &fp) {
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LOGFONTW lf;
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SetLogFont(lf, fp.faceName, fp.characterSet, fp.size, fp.weight, fp.italic, fp.extraFontFlag);
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hfont = ::CreateFontIndirectW(&lf);
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}
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// Deleted so FontGDI objects can not be copied.
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FontGDI(const FontGDI &) = delete;
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FontGDI(FontGDI &&) = delete;
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FontGDI &operator=(const FontGDI &) = delete;
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FontGDI &operator=(FontGDI &&) = delete;
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~FontGDI() noexcept override {
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if (hfont)
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::DeleteObject(hfont);
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}
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HFONT HFont() const noexcept override {
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// Duplicating hfont
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LOGFONTW lf = {};
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if (0 == ::GetObjectW(hfont, sizeof(lf), &lf)) {
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return {};
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}
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return ::CreateFontIndirectW(&lf);
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}
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};
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#if defined(USE_D2D)
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struct FontDirectWrite : public FontWin {
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IDWriteTextFormat *pTextFormat = nullptr;
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FontQuality extraFontFlag = FontQuality::QualityDefault;
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CharacterSet characterSet = CharacterSet::Ansi;
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FLOAT yAscent = 2.0f;
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FLOAT yDescent = 1.0f;
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FLOAT yInternalLeading = 0.0f;
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FontDirectWrite(const FontParameters &fp) :
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extraFontFlag(fp.extraFontFlag),
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characterSet(fp.characterSet) {
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const std::wstring wsFace = WStringFromUTF8(fp.faceName);
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const std::wstring wsLocale = WStringFromUTF8(fp.localeName);
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const FLOAT fHeight = static_cast<FLOAT>(fp.size);
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const DWRITE_FONT_STYLE style = fp.italic ? DWRITE_FONT_STYLE_ITALIC : DWRITE_FONT_STYLE_NORMAL;
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HRESULT hr = pIDWriteFactory->CreateTextFormat(wsFace.c_str(), nullptr,
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static_cast<DWRITE_FONT_WEIGHT>(fp.weight),
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style,
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DWRITE_FONT_STRETCH_NORMAL, fHeight, wsLocale.c_str(), &pTextFormat);
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if (hr == E_INVALIDARG) {
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// Possibly a bad locale name like "/" so try "en-us".
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hr = pIDWriteFactory->CreateTextFormat(wsFace.c_str(), nullptr,
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static_cast<DWRITE_FONT_WEIGHT>(fp.weight),
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style,
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DWRITE_FONT_STRETCH_NORMAL, fHeight, L"en-us", &pTextFormat);
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}
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if (SUCCEEDED(hr)) {
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pTextFormat->SetWordWrapping(DWRITE_WORD_WRAPPING_NO_WRAP);
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IDWriteTextLayout *pTextLayout = nullptr;
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hr = pIDWriteFactory->CreateTextLayout(L"X", 1, pTextFormat,
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100.0f, 100.0f, &pTextLayout);
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if (SUCCEEDED(hr) && pTextLayout) {
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constexpr int maxLines = 2;
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DWRITE_LINE_METRICS lineMetrics[maxLines]{};
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UINT32 lineCount = 0;
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hr = pTextLayout->GetLineMetrics(lineMetrics, maxLines, &lineCount);
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if (SUCCEEDED(hr)) {
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yAscent = lineMetrics[0].baseline;
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yDescent = lineMetrics[0].height - lineMetrics[0].baseline;
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FLOAT emHeight;
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hr = pTextLayout->GetFontSize(0, &emHeight);
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if (SUCCEEDED(hr)) {
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yInternalLeading = lineMetrics[0].height - emHeight;
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}
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}
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ReleaseUnknown(pTextLayout);
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pTextFormat->SetLineSpacing(DWRITE_LINE_SPACING_METHOD_UNIFORM, lineMetrics[0].height, lineMetrics[0].baseline);
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}
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}
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}
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// Deleted so FontDirectWrite objects can not be copied.
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FontDirectWrite(const FontDirectWrite &) = delete;
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FontDirectWrite(FontDirectWrite &&) = delete;
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FontDirectWrite &operator=(const FontDirectWrite &) = delete;
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FontDirectWrite &operator=(FontDirectWrite &&) = delete;
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~FontDirectWrite() noexcept override {
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ReleaseUnknown(pTextFormat);
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}
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HFONT HFont() const noexcept override {
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LOGFONTW lf = {};
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const HRESULT hr = pTextFormat->GetFontFamilyName(lf.lfFaceName, LF_FACESIZE);
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if (!SUCCEEDED(hr)) {
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return {};
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}
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lf.lfWeight = pTextFormat->GetFontWeight();
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lf.lfItalic = pTextFormat->GetFontStyle() == DWRITE_FONT_STYLE_ITALIC;
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lf.lfHeight = -static_cast<int>(pTextFormat->GetFontSize());
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return ::CreateFontIndirectW(&lf);
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}
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int CodePageText(int codePage) const noexcept {
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if (!(codePage == CpUtf8) && (characterSet != CharacterSet::Ansi)) {
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codePage = CodePageFromCharSet(characterSet, codePage);
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}
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return codePage;
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}
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static const FontDirectWrite *Cast(const Font *font_) {
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const FontDirectWrite *pfm = dynamic_cast<const FontDirectWrite *>(font_);
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PLATFORM_ASSERT(pfm);
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if (!pfm) {
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throw std::runtime_error("SurfaceD2D::SetFont: wrong Font type.");
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}
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return pfm;
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}
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};
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#endif
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}
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std::shared_ptr<Font> Font::Allocate(const FontParameters &fp) {
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#if defined(USE_D2D)
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if (fp.technology != Technology::Default) {
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return std::make_shared<FontDirectWrite>(fp);
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}
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#endif
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return std::make_shared<FontGDI>(fp);
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}
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// Buffer to hold strings and string position arrays without always allocating on heap.
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// May sometimes have string too long to allocate on stack. So use a fixed stack-allocated buffer
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// when less than safe size otherwise allocate on heap and free automatically.
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template<typename T, int lengthStandard>
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class VarBuffer {
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T bufferStandard[lengthStandard];
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public:
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T *buffer;
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explicit VarBuffer(size_t length) : buffer(nullptr) {
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if (length > lengthStandard) {
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buffer = new T[length];
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} else {
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buffer = bufferStandard;
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}
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}
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// Deleted so VarBuffer objects can not be copied.
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VarBuffer(const VarBuffer &) = delete;
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VarBuffer(VarBuffer &&) = delete;
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VarBuffer &operator=(const VarBuffer &) = delete;
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VarBuffer &operator=(VarBuffer &&) = delete;
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~VarBuffer() noexcept {
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if (buffer != bufferStandard) {
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delete []buffer;
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buffer = nullptr;
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}
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}
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};
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constexpr int stackBufferLength = 400;
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class TextWide : public VarBuffer<wchar_t, stackBufferLength> {
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public:
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int tlen; // Using int instead of size_t as most Win32 APIs take int.
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TextWide(std::string_view text, int codePage) :
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VarBuffer<wchar_t, stackBufferLength>(text.length()) {
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if (codePage == CpUtf8) {
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tlen = static_cast<int>(UTF16FromUTF8(text, buffer, text.length()));
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} else {
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// Support Asian string display in 9x English
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tlen = ::MultiByteToWideChar(codePage, 0, text.data(), static_cast<int>(text.length()),
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buffer, static_cast<int>(text.length()));
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}
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}
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};
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typedef VarBuffer<XYPOSITION, stackBufferLength> TextPositions;
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UINT DpiForWindow(WindowID wid) noexcept {
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if (fnGetDpiForWindow) {
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return fnGetDpiForWindow(HwndFromWindowID(wid));
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}
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if (fnGetDpiForMonitor) {
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HMONITOR hMonitor = ::MonitorFromWindow(HwndFromWindowID(wid), MONITOR_DEFAULTTONEAREST);
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UINT dpiX = 0;
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UINT dpiY = 0;
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if (fnGetDpiForMonitor(hMonitor, 0 /*MDT_EFFECTIVE_DPI*/, &dpiX, &dpiY) == S_OK) {
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return dpiY;
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}
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}
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return uSystemDPI;
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}
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int SystemMetricsForDpi(int nIndex, UINT dpi) noexcept {
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if (fnGetSystemMetricsForDpi) {
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return fnGetSystemMetricsForDpi(nIndex, dpi);
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}
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int value = ::GetSystemMetrics(nIndex);
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value = (dpi == uSystemDPI) ? value : ::MulDiv(value, dpi, uSystemDPI);
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return value;
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}
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class SurfaceGDI : public Surface {
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SurfaceMode mode;
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HDC hdc{};
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bool hdcOwned=false;
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HPEN pen{};
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HPEN penOld{};
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HBRUSH brush{};
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HBRUSH brushOld{};
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HFONT fontOld{};
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HBITMAP bitmap{};
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HBITMAP bitmapOld{};
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int logPixelsY = USER_DEFAULT_SCREEN_DPI;
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static constexpr int maxWidthMeasure = INT_MAX;
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// There appears to be a 16 bit string length limit in GDI on NT.
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static constexpr int maxLenText = 65535;
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void PenColour(ColourRGBA fore, XYPOSITION widthStroke) noexcept;
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void BrushColour(ColourRGBA back) noexcept;
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void SetFont(const Font *font_);
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void Clear() noexcept;
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public:
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SurfaceGDI() noexcept;
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SurfaceGDI(HDC hdcCompatible, int width, int height, SurfaceMode mode_, int logPixelsY_) noexcept;
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// Deleted so SurfaceGDI objects can not be copied.
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SurfaceGDI(const SurfaceGDI &) = delete;
|
|
SurfaceGDI(SurfaceGDI &&) = delete;
|
|
SurfaceGDI &operator=(const SurfaceGDI &) = delete;
|
|
SurfaceGDI &operator=(SurfaceGDI &&) = delete;
|
|
|
|
~SurfaceGDI() noexcept override;
|
|
|
|
void Init(WindowID wid) override;
|
|
void Init(SurfaceID sid, WindowID wid) override;
|
|
std::unique_ptr<Surface> AllocatePixMap(int width, int height) override;
|
|
|
|
void SetMode(SurfaceMode mode_) override;
|
|
|
|
void Release() noexcept override;
|
|
int SupportsFeature(Supports feature) noexcept override;
|
|
bool Initialised() override;
|
|
int LogPixelsY() override;
|
|
int PixelDivisions() override;
|
|
int DeviceHeightFont(int points) override;
|
|
void LineDraw(Point start, Point end, Stroke stroke) override;
|
|
void PolyLine(const Point *pts, size_t npts, Stroke stroke) override;
|
|
void Polygon(const Point *pts, size_t npts, FillStroke fillStroke) override;
|
|
void RectangleDraw(PRectangle rc, FillStroke fillStroke) override;
|
|
void RectangleFrame(PRectangle rc, Stroke stroke) override;
|
|
void FillRectangle(PRectangle rc, Fill fill) override;
|
|
void FillRectangleAligned(PRectangle rc, Fill fill) override;
|
|
void FillRectangle(PRectangle rc, Surface &surfacePattern) override;
|
|
void RoundedRectangle(PRectangle rc, FillStroke fillStroke) override;
|
|
void AlphaRectangle(PRectangle rc, XYPOSITION cornerSize, FillStroke fillStroke) override;
|
|
void GradientRectangle(PRectangle rc, const std::vector<ColourStop> &stops, GradientOptions options) override;
|
|
void DrawRGBAImage(PRectangle rc, int width, int height, const unsigned char *pixelsImage) override;
|
|
void Ellipse(PRectangle rc, FillStroke fillStroke) override;
|
|
void Stadium(PRectangle rc, FillStroke fillStroke, Ends ends) override;
|
|
void Copy(PRectangle rc, Point from, Surface &surfaceSource) override;
|
|
|
|
std::unique_ptr<IScreenLineLayout> Layout(const IScreenLine *screenLine) override;
|
|
|
|
void DrawTextCommon(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, UINT fuOptions);
|
|
void DrawTextNoClip(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextClipped(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextTransparent(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore) override;
|
|
void MeasureWidths(const Font *font_, std::string_view text, XYPOSITION *positions) override;
|
|
XYPOSITION WidthText(const Font *font_, std::string_view text) override;
|
|
|
|
void DrawTextCommonUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, UINT fuOptions);
|
|
void DrawTextNoClipUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextClippedUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextTransparentUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore) override;
|
|
void MeasureWidthsUTF8(const Font *font_, std::string_view text, XYPOSITION *positions) override;
|
|
XYPOSITION WidthTextUTF8(const Font *font_, std::string_view text) override;
|
|
|
|
XYPOSITION Ascent(const Font *font_) override;
|
|
XYPOSITION Descent(const Font *font_) override;
|
|
XYPOSITION InternalLeading(const Font *font_) override;
|
|
XYPOSITION Height(const Font *font_) override;
|
|
XYPOSITION AverageCharWidth(const Font *font_) override;
|
|
|
|
void SetClip(PRectangle rc) override;
|
|
void PopClip() override;
|
|
void FlushCachedState() override;
|
|
void FlushDrawing() override;
|
|
};
|
|
|
|
SurfaceGDI::SurfaceGDI() noexcept {
|
|
}
|
|
|
|
SurfaceGDI::SurfaceGDI(HDC hdcCompatible, int width, int height, SurfaceMode mode_, int logPixelsY_) noexcept {
|
|
// Fixed in Scintilla project: https://sourceforge.net/p/scintilla/code/ci/fa80f5d42d95cb95030f587b00174471d946353b/
|
|
hdc = ::CreateCompatibleDC(hdcCompatible);
|
|
hdcOwned = true;
|
|
bitmap = ::CreateCompatibleBitmap(hdcCompatible, width, height);
|
|
bitmapOld = SelectBitmap(hdc, bitmap);
|
|
::SetTextAlign(hdc, TA_BASELINE);
|
|
mode = mode_;
|
|
logPixelsY = logPixelsY_;
|
|
}
|
|
|
|
SurfaceGDI::~SurfaceGDI() noexcept {
|
|
Clear();
|
|
}
|
|
|
|
void SurfaceGDI::Clear() noexcept {
|
|
if (penOld) {
|
|
::SelectObject(hdc, penOld);
|
|
::DeleteObject(pen);
|
|
penOld = {};
|
|
}
|
|
pen = {};
|
|
if (brushOld) {
|
|
::SelectObject(hdc, brushOld);
|
|
::DeleteObject(brush);
|
|
brushOld = {};
|
|
}
|
|
brush = {};
|
|
if (fontOld) {
|
|
// Fonts are not deleted as they are owned by a Font object
|
|
::SelectObject(hdc, fontOld);
|
|
fontOld = {};
|
|
}
|
|
if (bitmapOld) {
|
|
::SelectObject(hdc, bitmapOld);
|
|
::DeleteObject(bitmap);
|
|
bitmapOld = {};
|
|
}
|
|
bitmap = {};
|
|
if (hdcOwned) {
|
|
::DeleteDC(hdc);
|
|
hdc = {};
|
|
hdcOwned = false;
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::Release() noexcept {
|
|
Clear();
|
|
}
|
|
|
|
int SurfaceGDI::SupportsFeature(Supports feature) noexcept {
|
|
for (const Supports f : SupportsGDI) {
|
|
if (f == feature)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool SurfaceGDI::Initialised() {
|
|
return hdc != 0;
|
|
}
|
|
|
|
void SurfaceGDI::Init(WindowID wid) {
|
|
Release();
|
|
hdc = ::CreateCompatibleDC({});
|
|
hdcOwned = true;
|
|
::SetTextAlign(hdc, TA_BASELINE);
|
|
logPixelsY = DpiForWindow(wid);
|
|
}
|
|
|
|
void SurfaceGDI::Init(SurfaceID sid, WindowID wid) {
|
|
Release();
|
|
hdc = static_cast<HDC>(sid);
|
|
::SetTextAlign(hdc, TA_BASELINE);
|
|
// Windows on screen are scaled but printers are not.
|
|
const bool printing = ::GetDeviceCaps(hdc, TECHNOLOGY) != DT_RASDISPLAY;
|
|
logPixelsY = printing ? ::GetDeviceCaps(hdc, LOGPIXELSY) : DpiForWindow(wid);
|
|
}
|
|
|
|
std::unique_ptr<Surface> SurfaceGDI::AllocatePixMap(int width, int height) {
|
|
return std::make_unique<SurfaceGDI>(hdc, width, height, mode, logPixelsY);
|
|
}
|
|
|
|
void SurfaceGDI::SetMode(SurfaceMode mode_) {
|
|
mode = mode_;
|
|
}
|
|
|
|
void SurfaceGDI::PenColour(ColourRGBA fore, XYPOSITION widthStroke) noexcept {
|
|
if (pen) {
|
|
::SelectObject(hdc, penOld);
|
|
::DeleteObject(pen);
|
|
pen = {};
|
|
penOld = {};
|
|
}
|
|
const DWORD penWidth = std::lround(widthStroke);
|
|
const COLORREF penColour = fore.OpaqueRGB();
|
|
if (widthStroke > 1) {
|
|
const LOGBRUSH brushParameters{ BS_SOLID, penColour, 0 };
|
|
pen = ::ExtCreatePen(PS_GEOMETRIC | PS_ENDCAP_ROUND | PS_JOIN_MITER,
|
|
penWidth,
|
|
&brushParameters,
|
|
0,
|
|
nullptr);
|
|
} else {
|
|
pen = ::CreatePen(PS_INSIDEFRAME, penWidth, penColour);
|
|
}
|
|
penOld = SelectPen(hdc, pen);
|
|
}
|
|
|
|
void SurfaceGDI::BrushColour(ColourRGBA back) noexcept {
|
|
if (brush) {
|
|
::SelectObject(hdc, brushOld);
|
|
::DeleteObject(brush);
|
|
brush = {};
|
|
brushOld = {};
|
|
}
|
|
brush = ::CreateSolidBrush(back.OpaqueRGB());
|
|
brushOld = SelectBrush(hdc, brush);
|
|
}
|
|
|
|
void SurfaceGDI::SetFont(const Font *font_) {
|
|
const FontGDI *pfm = dynamic_cast<const FontGDI *>(font_);
|
|
PLATFORM_ASSERT(pfm);
|
|
if (!pfm) {
|
|
throw std::runtime_error("SurfaceGDI::SetFont: wrong Font type.");
|
|
}
|
|
if (fontOld) {
|
|
SelectFont(hdc, pfm->hfont);
|
|
} else {
|
|
fontOld = SelectFont(hdc, pfm->hfont);
|
|
}
|
|
}
|
|
|
|
int SurfaceGDI::LogPixelsY() {
|
|
return logPixelsY;
|
|
}
|
|
|
|
int SurfaceGDI::PixelDivisions() {
|
|
// Win32 uses device pixels.
|
|
return 1;
|
|
}
|
|
|
|
int SurfaceGDI::DeviceHeightFont(int points) {
|
|
return ::MulDiv(points, LogPixelsY(), 72);
|
|
}
|
|
|
|
void SurfaceGDI::LineDraw(Point start, Point end, Stroke stroke) {
|
|
PenColour(stroke.colour, stroke.width);
|
|
::MoveToEx(hdc, std::lround(std::floor(start.x)), std::lround(std::floor(start.y)), nullptr);
|
|
::LineTo(hdc, std::lround(std::floor(end.x)), std::lround(std::floor(end.y)));
|
|
}
|
|
|
|
void SurfaceGDI::PolyLine(const Point *pts, size_t npts, Stroke stroke) {
|
|
PLATFORM_ASSERT(npts > 1);
|
|
if (npts <= 1) {
|
|
return;
|
|
}
|
|
PenColour(stroke.colour, stroke.width);
|
|
std::vector<POINT> outline;
|
|
std::transform(pts, pts + npts, std::back_inserter(outline), POINTFromPoint);
|
|
::Polyline(hdc, outline.data(), static_cast<int>(npts));
|
|
}
|
|
|
|
void SurfaceGDI::Polygon(const Point *pts, size_t npts, FillStroke fillStroke) {
|
|
PenColour(fillStroke.stroke.colour.WithoutAlpha(), fillStroke.stroke.width);
|
|
BrushColour(fillStroke.fill.colour.WithoutAlpha());
|
|
std::vector<POINT> outline;
|
|
std::transform(pts, pts + npts, std::back_inserter(outline), POINTFromPoint);
|
|
::Polygon(hdc, outline.data(), static_cast<int>(npts));
|
|
}
|
|
|
|
void SurfaceGDI::RectangleDraw(PRectangle rc, FillStroke fillStroke) {
|
|
RectangleFrame(rc, fillStroke.stroke);
|
|
FillRectangle(rc.Inset(fillStroke.stroke.width), fillStroke.fill.colour);
|
|
}
|
|
|
|
void SurfaceGDI::RectangleFrame(PRectangle rc, Stroke stroke) {
|
|
BrushColour(stroke.colour);
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::FrameRect(hdc, &rcw, brush);
|
|
}
|
|
|
|
void SurfaceGDI::FillRectangle(PRectangle rc, Fill fill) {
|
|
if (fill.colour.IsOpaque()) {
|
|
// Using ExtTextOut rather than a FillRect ensures that no dithering occurs.
|
|
// There is no need to allocate a brush either.
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::SetBkColor(hdc, fill.colour.OpaqueRGB());
|
|
::ExtTextOut(hdc, rcw.left, rcw.top, ETO_OPAQUE, &rcw, TEXT(""), 0, nullptr);
|
|
} else {
|
|
AlphaRectangle(rc, 0, FillStroke(fill.colour));
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::FillRectangleAligned(PRectangle rc, Fill fill) {
|
|
FillRectangle(PixelAlign(rc, 1), fill);
|
|
}
|
|
|
|
void SurfaceGDI::FillRectangle(PRectangle rc, Surface &surfacePattern) {
|
|
HBRUSH br;
|
|
if (SurfaceGDI *psgdi = dynamic_cast<SurfaceGDI *>(&surfacePattern); psgdi && psgdi->bitmap) {
|
|
br = ::CreatePatternBrush(psgdi->bitmap);
|
|
} else { // Something is wrong so display in red
|
|
br = ::CreateSolidBrush(RGB(0xff, 0, 0));
|
|
}
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::FillRect(hdc, &rcw, br);
|
|
::DeleteObject(br);
|
|
}
|
|
|
|
void SurfaceGDI::RoundedRectangle(PRectangle rc, FillStroke fillStroke) {
|
|
PenColour(fillStroke.stroke.colour, fillStroke.stroke.width);
|
|
BrushColour(fillStroke.fill.colour);
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::RoundRect(hdc,
|
|
rcw.left + 1, rcw.top,
|
|
rcw.right - 1, rcw.bottom,
|
|
8, 8);
|
|
}
|
|
|
|
namespace {
|
|
|
|
constexpr DWORD dwordFromBGRA(byte b, byte g, byte r, byte a) noexcept {
|
|
return (a << 24) | (r << 16) | (g << 8) | b;
|
|
}
|
|
|
|
constexpr byte AlphaScaled(unsigned char component, unsigned int alpha) noexcept {
|
|
return static_cast<byte>(component * alpha / 255);
|
|
}
|
|
|
|
constexpr DWORD dwordMultiplied(ColourRGBA colour) noexcept {
|
|
return dwordFromBGRA(
|
|
AlphaScaled(colour.GetBlue(), colour.GetAlpha()),
|
|
AlphaScaled(colour.GetGreen(), colour.GetAlpha()),
|
|
AlphaScaled(colour.GetRed(), colour.GetAlpha()),
|
|
colour.GetAlpha());
|
|
}
|
|
|
|
class DIBSection {
|
|
HDC hMemDC {};
|
|
HBITMAP hbmMem {};
|
|
HBITMAP hbmOld {};
|
|
SIZE size {};
|
|
DWORD *pixels = nullptr;
|
|
public:
|
|
DIBSection(HDC hdc, SIZE size_) noexcept;
|
|
// Deleted so DIBSection objects can not be copied.
|
|
DIBSection(const DIBSection&) = delete;
|
|
DIBSection(DIBSection&&) = delete;
|
|
DIBSection &operator=(const DIBSection&) = delete;
|
|
DIBSection &operator=(DIBSection&&) = delete;
|
|
~DIBSection() noexcept;
|
|
operator bool() const noexcept {
|
|
return hMemDC && hbmMem && pixels;
|
|
}
|
|
DWORD *Pixels() const noexcept {
|
|
return pixels;
|
|
}
|
|
unsigned char *Bytes() const noexcept {
|
|
return reinterpret_cast<unsigned char *>(pixels);
|
|
}
|
|
HDC DC() const noexcept {
|
|
return hMemDC;
|
|
}
|
|
void SetPixel(LONG x, LONG y, DWORD value) noexcept {
|
|
PLATFORM_ASSERT(x >= 0);
|
|
PLATFORM_ASSERT(y >= 0);
|
|
PLATFORM_ASSERT(x < size.cx);
|
|
PLATFORM_ASSERT(y < size.cy);
|
|
pixels[y * size.cx + x] = value;
|
|
}
|
|
void SetSymmetric(LONG x, LONG y, DWORD value) noexcept;
|
|
};
|
|
|
|
DIBSection::DIBSection(HDC hdc, SIZE size_) noexcept {
|
|
hMemDC = ::CreateCompatibleDC(hdc);
|
|
if (!hMemDC) {
|
|
return;
|
|
}
|
|
|
|
size = size_;
|
|
|
|
// -size.y makes bitmap start from top
|
|
const BITMAPINFO bpih = { {sizeof(BITMAPINFOHEADER), size.cx, -size.cy, 1, 32, BI_RGB, 0, 0, 0, 0, 0},
|
|
{{0, 0, 0, 0}} };
|
|
void *image = nullptr;
|
|
hbmMem = CreateDIBSection(hMemDC, &bpih, DIB_RGB_COLORS, &image, {}, 0);
|
|
if (!hbmMem || !image) {
|
|
return;
|
|
}
|
|
pixels = static_cast<DWORD *>(image);
|
|
hbmOld = SelectBitmap(hMemDC, hbmMem);
|
|
}
|
|
|
|
DIBSection::~DIBSection() noexcept {
|
|
if (hbmOld) {
|
|
SelectBitmap(hMemDC, hbmOld);
|
|
hbmOld = {};
|
|
}
|
|
if (hbmMem) {
|
|
::DeleteObject(hbmMem);
|
|
hbmMem = {};
|
|
}
|
|
if (hMemDC) {
|
|
::DeleteDC(hMemDC);
|
|
hMemDC = {};
|
|
}
|
|
}
|
|
|
|
void DIBSection::SetSymmetric(LONG x, LONG y, DWORD value) noexcept {
|
|
// Plot a point symmetrically to all 4 quadrants
|
|
const LONG xSymmetric = size.cx - 1 - x;
|
|
const LONG ySymmetric = size.cy - 1 - y;
|
|
SetPixel(x, y, value);
|
|
SetPixel(xSymmetric, y, value);
|
|
SetPixel(x, ySymmetric, value);
|
|
SetPixel(xSymmetric, ySymmetric, value);
|
|
}
|
|
|
|
ColourRGBA GradientValue(const std::vector<ColourStop> &stops, XYPOSITION proportion) noexcept {
|
|
for (size_t stop = 0; stop < stops.size() - 1; stop++) {
|
|
// Loop through each pair of stops
|
|
const XYPOSITION positionStart = stops[stop].position;
|
|
const XYPOSITION positionEnd = stops[stop + 1].position;
|
|
if ((proportion >= positionStart) && (proportion <= positionEnd)) {
|
|
const XYPOSITION proportionInPair = (proportion - positionStart) /
|
|
(positionEnd - positionStart);
|
|
return stops[stop].colour.MixedWith(stops[stop + 1].colour, proportionInPair);
|
|
}
|
|
}
|
|
// Loop should always find a value
|
|
return ColourRGBA();
|
|
}
|
|
|
|
constexpr SIZE SizeOfRect(RECT rc) noexcept {
|
|
return { rc.right - rc.left, rc.bottom - rc.top };
|
|
}
|
|
|
|
constexpr BLENDFUNCTION mergeAlpha = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
|
|
|
|
}
|
|
|
|
void SurfaceGDI::AlphaRectangle(PRectangle rc, XYPOSITION cornerSize, FillStroke fillStroke) {
|
|
// TODO: Implement strokeWidth
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
const SIZE size = SizeOfRect(rcw);
|
|
|
|
if (size.cx > 0) {
|
|
|
|
DIBSection section(hdc, size);
|
|
|
|
if (section) {
|
|
|
|
// Ensure not distorted too much by corners when small
|
|
const LONG corner = std::min(static_cast<LONG>(cornerSize), (std::min(size.cx, size.cy) / 2) - 2);
|
|
|
|
constexpr DWORD valEmpty = dwordFromBGRA(0,0,0,0);
|
|
const DWORD valFill = dwordMultiplied(fillStroke.fill.colour);
|
|
const DWORD valOutline = dwordMultiplied(fillStroke.stroke.colour);
|
|
|
|
// Draw a framed rectangle
|
|
for (int y=0; y<size.cy; y++) {
|
|
for (int x=0; x<size.cx; x++) {
|
|
if ((x==0) || (x==size.cx-1) || (y == 0) || (y == size.cy -1)) {
|
|
section.SetPixel(x, y, valOutline);
|
|
} else {
|
|
section.SetPixel(x, y, valFill);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Make the corners transparent
|
|
for (LONG c=0; c<corner; c++) {
|
|
for (LONG x=0; x<c+1; x++) {
|
|
section.SetSymmetric(x, c - x, valEmpty);
|
|
}
|
|
}
|
|
|
|
// Draw the corner frame pieces
|
|
for (LONG x=1; x<corner; x++) {
|
|
section.SetSymmetric(x, corner - x, valOutline);
|
|
}
|
|
|
|
AlphaBlend(hdc, rcw.left, rcw.top, size.cx, size.cy, section.DC(), 0, 0, size.cx, size.cy, mergeAlpha);
|
|
}
|
|
} else {
|
|
BrushColour(fillStroke.stroke.colour);
|
|
FrameRect(hdc, &rcw, brush);
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::GradientRectangle(PRectangle rc, const std::vector<ColourStop> &stops, GradientOptions options) {
|
|
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
const SIZE size = SizeOfRect(rcw);
|
|
|
|
DIBSection section(hdc, size);
|
|
|
|
if (section) {
|
|
|
|
if (options == GradientOptions::topToBottom) {
|
|
for (LONG y = 0; y < size.cy; y++) {
|
|
// Find y/height proportional colour
|
|
const XYPOSITION proportion = y / (rc.Height() - 1.0f);
|
|
const ColourRGBA mixed = GradientValue(stops, proportion);
|
|
const DWORD valFill = dwordMultiplied(mixed);
|
|
for (LONG x = 0; x < size.cx; x++) {
|
|
section.SetPixel(x, y, valFill);
|
|
}
|
|
}
|
|
} else {
|
|
for (LONG x = 0; x < size.cx; x++) {
|
|
// Find x/width proportional colour
|
|
const XYPOSITION proportion = x / (rc.Width() - 1.0f);
|
|
const ColourRGBA mixed = GradientValue(stops, proportion);
|
|
const DWORD valFill = dwordMultiplied(mixed);
|
|
for (LONG y = 0; y < size.cy; y++) {
|
|
section.SetPixel(x, y, valFill);
|
|
}
|
|
}
|
|
}
|
|
|
|
AlphaBlend(hdc, rcw.left, rcw.top, size.cx, size.cy, section.DC(), 0, 0, size.cx, size.cy, mergeAlpha);
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::DrawRGBAImage(PRectangle rc, int width, int height, const unsigned char *pixelsImage) {
|
|
if (rc.Width() > 0) {
|
|
if (rc.Width() > width)
|
|
rc.left += std::floor((rc.Width() - width) / 2);
|
|
rc.right = rc.left + width;
|
|
if (rc.Height() > height)
|
|
rc.top += std::floor((rc.Height() - height) / 2);
|
|
rc.bottom = rc.top + height;
|
|
|
|
const SIZE size { width, height };
|
|
DIBSection section(hdc, size);
|
|
if (section) {
|
|
RGBAImage::BGRAFromRGBA(section.Bytes(), pixelsImage, static_cast<size_t>(width) * height);
|
|
AlphaBlend(hdc, static_cast<int>(rc.left), static_cast<int>(rc.top),
|
|
static_cast<int>(rc.Width()), static_cast<int>(rc.Height()), section.DC(),
|
|
0, 0, width, height, mergeAlpha);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::Ellipse(PRectangle rc, FillStroke fillStroke) {
|
|
PenColour(fillStroke.stroke.colour, fillStroke.stroke.width);
|
|
BrushColour(fillStroke.fill.colour);
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::Ellipse(hdc, rcw.left, rcw.top, rcw.right, rcw.bottom);
|
|
}
|
|
|
|
void SurfaceGDI::Stadium(PRectangle rc, FillStroke fillStroke, [[maybe_unused]] Ends ends) {
|
|
// TODO: Implement properly - the rectangle is just a placeholder
|
|
RectangleDraw(rc, fillStroke);
|
|
}
|
|
|
|
void SurfaceGDI::Copy(PRectangle rc, Point from, Surface &surfaceSource) {
|
|
::BitBlt(hdc,
|
|
static_cast<int>(rc.left), static_cast<int>(rc.top),
|
|
static_cast<int>(rc.Width()), static_cast<int>(rc.Height()),
|
|
dynamic_cast<SurfaceGDI &>(surfaceSource).hdc,
|
|
static_cast<int>(from.x), static_cast<int>(from.y), SRCCOPY);
|
|
}
|
|
|
|
std::unique_ptr<IScreenLineLayout> SurfaceGDI::Layout(const IScreenLine *) {
|
|
return {};
|
|
}
|
|
|
|
typedef VarBuffer<int, stackBufferLength> TextPositionsI;
|
|
|
|
void SurfaceGDI::DrawTextCommon(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, UINT fuOptions) {
|
|
SetFont(font_);
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
const int x = static_cast<int>(rc.left);
|
|
const int yBaseInt = static_cast<int>(ybase);
|
|
|
|
if (mode.codePage == CpUtf8) {
|
|
const TextWide tbuf(text, mode.codePage);
|
|
::ExtTextOutW(hdc, x, yBaseInt, fuOptions, &rcw, tbuf.buffer, tbuf.tlen, nullptr);
|
|
} else {
|
|
::ExtTextOutA(hdc, x, yBaseInt, fuOptions, &rcw, text.data(), static_cast<UINT>(text.length()), nullptr);
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextNoClip(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
::SetTextColor(hdc, fore.OpaqueRGB());
|
|
::SetBkColor(hdc, back.OpaqueRGB());
|
|
DrawTextCommon(rc, font_, ybase, text, ETO_OPAQUE);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextClipped(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
::SetTextColor(hdc, fore.OpaqueRGB());
|
|
::SetBkColor(hdc, back.OpaqueRGB());
|
|
DrawTextCommon(rc, font_, ybase, text, ETO_OPAQUE | ETO_CLIPPED);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextTransparent(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore) {
|
|
// Avoid drawing spaces in transparent mode
|
|
for (const char ch : text) {
|
|
if (ch != ' ') {
|
|
::SetTextColor(hdc, fore.OpaqueRGB());
|
|
::SetBkMode(hdc, TRANSPARENT);
|
|
DrawTextCommon(rc, font_, ybase, text, 0);
|
|
::SetBkMode(hdc, OPAQUE);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::MeasureWidths(const Font *font_, std::string_view text, XYPOSITION *positions) {
|
|
// Zero positions to avoid random behaviour on failure.
|
|
std::fill(positions, positions + text.length(), 0.0f);
|
|
SetFont(font_);
|
|
SIZE sz = { 0,0 };
|
|
int fit = 0;
|
|
int i = 0;
|
|
const int len = static_cast<int>(text.length());
|
|
if (mode.codePage == CpUtf8) {
|
|
const TextWide tbuf(text, mode.codePage);
|
|
TextPositionsI poses(tbuf.tlen);
|
|
if (!::GetTextExtentExPointW(hdc, tbuf.buffer, tbuf.tlen, maxWidthMeasure, &fit, poses.buffer, &sz)) {
|
|
// Failure
|
|
return;
|
|
}
|
|
// Map the widths given for UTF-16 characters back onto the UTF-8 input string
|
|
for (int ui = 0; ui < fit; ui++) {
|
|
const unsigned char uch = text[i];
|
|
const unsigned int byteCount = UTF8BytesOfLead[uch];
|
|
if (byteCount == 4) { // Non-BMP
|
|
ui++;
|
|
}
|
|
for (unsigned int bytePos = 0; (bytePos < byteCount) && (i < len); bytePos++) {
|
|
positions[i++] = static_cast<XYPOSITION>(poses.buffer[ui]);
|
|
}
|
|
}
|
|
} else {
|
|
TextPositionsI poses(len);
|
|
if (!::GetTextExtentExPointA(hdc, text.data(), len, maxWidthMeasure, &fit, poses.buffer, &sz)) {
|
|
// Eeek - a NULL DC or other foolishness could cause this.
|
|
return;
|
|
}
|
|
while (i < fit) {
|
|
positions[i] = static_cast<XYPOSITION>(poses.buffer[i]);
|
|
i++;
|
|
}
|
|
}
|
|
// If any positions not filled in then use the last position for them
|
|
const XYPOSITION lastPos = (fit > 0) ? positions[fit - 1] : 0.0f;
|
|
std::fill(positions + i, positions + text.length(), lastPos);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::WidthText(const Font *font_, std::string_view text) {
|
|
SetFont(font_);
|
|
SIZE sz = { 0,0 };
|
|
if (!(mode.codePage == CpUtf8)) {
|
|
::GetTextExtentPoint32A(hdc, text.data(), std::min(static_cast<int>(text.length()), maxLenText), &sz);
|
|
} else {
|
|
const TextWide tbuf(text, mode.codePage);
|
|
::GetTextExtentPoint32W(hdc, tbuf.buffer, tbuf.tlen, &sz);
|
|
}
|
|
return static_cast<XYPOSITION>(sz.cx);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextCommonUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, UINT fuOptions) {
|
|
SetFont(font_);
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
const int x = static_cast<int>(rc.left);
|
|
const int yBaseInt = static_cast<int>(ybase);
|
|
|
|
const TextWide tbuf(text, CpUtf8);
|
|
::ExtTextOutW(hdc, x, yBaseInt, fuOptions, &rcw, tbuf.buffer, tbuf.tlen, nullptr);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextNoClipUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
::SetTextColor(hdc, fore.OpaqueRGB());
|
|
::SetBkColor(hdc, back.OpaqueRGB());
|
|
DrawTextCommonUTF8(rc, font_, ybase, text, ETO_OPAQUE);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextClippedUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
::SetTextColor(hdc, fore.OpaqueRGB());
|
|
::SetBkColor(hdc, back.OpaqueRGB());
|
|
DrawTextCommonUTF8(rc, font_, ybase, text, ETO_OPAQUE | ETO_CLIPPED);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextTransparentUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore) {
|
|
// Avoid drawing spaces in transparent mode
|
|
for (const char ch : text) {
|
|
if (ch != ' ') {
|
|
::SetTextColor(hdc, fore.OpaqueRGB());
|
|
::SetBkMode(hdc, TRANSPARENT);
|
|
DrawTextCommonUTF8(rc, font_, ybase, text, 0);
|
|
::SetBkMode(hdc, OPAQUE);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceGDI::MeasureWidthsUTF8(const Font *font_, std::string_view text, XYPOSITION *positions) {
|
|
// Zero positions to avoid random behaviour on failure.
|
|
std::fill(positions, positions + text.length(), 0.0f);
|
|
SetFont(font_);
|
|
SIZE sz = { 0,0 };
|
|
int fit = 0;
|
|
int i = 0;
|
|
const int len = static_cast<int>(text.length());
|
|
const TextWide tbuf(text, CpUtf8);
|
|
TextPositionsI poses(tbuf.tlen);
|
|
if (!::GetTextExtentExPointW(hdc, tbuf.buffer, tbuf.tlen, maxWidthMeasure, &fit, poses.buffer, &sz)) {
|
|
// Failure
|
|
return;
|
|
}
|
|
// Map the widths given for UTF-16 characters back onto the UTF-8 input string
|
|
for (int ui = 0; ui < fit; ui++) {
|
|
const unsigned char uch = text[i];
|
|
const unsigned int byteCount = UTF8BytesOfLead[uch];
|
|
if (byteCount == 4) { // Non-BMP
|
|
ui++;
|
|
}
|
|
for (unsigned int bytePos = 0; (bytePos < byteCount) && (i < len); bytePos++) {
|
|
positions[i++] = static_cast<XYPOSITION>(poses.buffer[ui]);
|
|
}
|
|
}
|
|
// If any positions not filled in then use the last position for them
|
|
const XYPOSITION lastPos = (fit > 0) ? positions[fit - 1] : 0.0f;
|
|
std::fill(positions + i, positions + text.length(), lastPos);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::WidthTextUTF8(const Font *font_, std::string_view text) {
|
|
SetFont(font_);
|
|
SIZE sz = { 0,0 };
|
|
const TextWide tbuf(text, CpUtf8);
|
|
::GetTextExtentPoint32W(hdc, tbuf.buffer, tbuf.tlen, &sz);
|
|
return static_cast<XYPOSITION>(sz.cx);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::Ascent(const Font *font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmAscent);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::Descent(const Font *font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmDescent);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::InternalLeading(const Font *font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmInternalLeading);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::Height(const Font *font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmHeight);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::AverageCharWidth(const Font *font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmAveCharWidth);
|
|
}
|
|
|
|
void SurfaceGDI::SetClip(PRectangle rc) {
|
|
::SaveDC(hdc);
|
|
::IntersectClipRect(hdc, static_cast<int>(rc.left), static_cast<int>(rc.top),
|
|
static_cast<int>(rc.right), static_cast<int>(rc.bottom));
|
|
}
|
|
|
|
void SurfaceGDI::PopClip() {
|
|
::RestoreDC(hdc, -1);
|
|
}
|
|
|
|
void SurfaceGDI::FlushCachedState() {
|
|
pen = {};
|
|
brush = {};
|
|
}
|
|
|
|
void SurfaceGDI::FlushDrawing() {
|
|
}
|
|
|
|
#if defined(USE_D2D)
|
|
|
|
namespace {
|
|
|
|
constexpr D2D1_RECT_F RectangleFromPRectangle(PRectangle rc) noexcept {
|
|
return {
|
|
static_cast<FLOAT>(rc.left),
|
|
static_cast<FLOAT>(rc.top),
|
|
static_cast<FLOAT>(rc.right),
|
|
static_cast<FLOAT>(rc.bottom)
|
|
};
|
|
}
|
|
|
|
constexpr D2D1_POINT_2F DPointFromPoint(Point point) noexcept {
|
|
return { static_cast<FLOAT>(point.x), static_cast<FLOAT>(point.y) };
|
|
}
|
|
|
|
constexpr Supports SupportsD2D[] = {
|
|
Supports::LineDrawsFinal,
|
|
Supports::FractionalStrokeWidth,
|
|
Supports::TranslucentStroke,
|
|
Supports::PixelModification,
|
|
Supports::ThreadSafeMeasureWidths,
|
|
};
|
|
|
|
constexpr D2D_COLOR_F ColorFromColourAlpha(ColourRGBA colour) noexcept {
|
|
return D2D_COLOR_F{
|
|
colour.GetRedComponent(),
|
|
colour.GetGreenComponent(),
|
|
colour.GetBlueComponent(),
|
|
colour.GetAlphaComponent()
|
|
};
|
|
}
|
|
|
|
constexpr D2D1_RECT_F RectangleInset(D2D1_RECT_F rect, FLOAT inset) noexcept {
|
|
return D2D1_RECT_F{
|
|
rect.left + inset,
|
|
rect.top + inset,
|
|
rect.right - inset,
|
|
rect.bottom - inset };
|
|
}
|
|
|
|
}
|
|
|
|
class BlobInline;
|
|
|
|
class SurfaceD2D : public Surface, public ISetRenderingParams {
|
|
SurfaceMode mode;
|
|
|
|
ID2D1RenderTarget *pRenderTarget = nullptr;
|
|
ID2D1BitmapRenderTarget *pBitmapRenderTarget = nullptr;
|
|
bool ownRenderTarget = false;
|
|
int clipsActive = 0;
|
|
|
|
ID2D1SolidColorBrush *pBrush = nullptr;
|
|
|
|
static constexpr FontQuality invalidFontQuality = FontQuality::QualityMask;
|
|
FontQuality fontQuality = invalidFontQuality;
|
|
int logPixelsY = USER_DEFAULT_SCREEN_DPI;
|
|
std::shared_ptr<RenderingParams> renderingParams;
|
|
|
|
void Clear() noexcept;
|
|
void SetFontQuality(FontQuality extraFontFlag);
|
|
HRESULT GetBitmap(ID2D1Bitmap **ppBitmap);
|
|
|
|
public:
|
|
SurfaceD2D() noexcept;
|
|
SurfaceD2D(ID2D1RenderTarget *pRenderTargetCompatible, int width, int height, SurfaceMode mode_, int logPixelsY_) noexcept;
|
|
// Deleted so SurfaceD2D objects can not be copied.
|
|
SurfaceD2D(const SurfaceD2D &) = delete;
|
|
SurfaceD2D(SurfaceD2D &&) = delete;
|
|
SurfaceD2D &operator=(const SurfaceD2D &) = delete;
|
|
SurfaceD2D &operator=(SurfaceD2D &&) = delete;
|
|
~SurfaceD2D() noexcept override;
|
|
|
|
void SetScale(WindowID wid) noexcept;
|
|
void Init(WindowID wid) override;
|
|
void Init(SurfaceID sid, WindowID wid) override;
|
|
std::unique_ptr<Surface> AllocatePixMap(int width, int height) override;
|
|
|
|
void SetMode(SurfaceMode mode_) override;
|
|
|
|
void Release() noexcept override;
|
|
int SupportsFeature(Supports feature) noexcept override;
|
|
bool Initialised() override;
|
|
|
|
void D2DPenColourAlpha(ColourRGBA fore) noexcept;
|
|
int LogPixelsY() override;
|
|
int PixelDivisions() override;
|
|
int DeviceHeightFont(int points) override;
|
|
void LineDraw(Point start, Point end, Stroke stroke) override;
|
|
ID2D1PathGeometry *Geometry(const Point *pts, size_t npts, D2D1_FIGURE_BEGIN figureBegin) noexcept;
|
|
void PolyLine(const Point *pts, size_t npts, Stroke stroke) override;
|
|
void Polygon(const Point *pts, size_t npts, FillStroke fillStroke) override;
|
|
void RectangleDraw(PRectangle rc, FillStroke fillStroke) override;
|
|
void RectangleFrame(PRectangle rc, Stroke stroke) override;
|
|
void FillRectangle(PRectangle rc, Fill fill) override;
|
|
void FillRectangleAligned(PRectangle rc, Fill fill) override;
|
|
void FillRectangle(PRectangle rc, Surface &surfacePattern) override;
|
|
void RoundedRectangle(PRectangle rc, FillStroke fillStroke) override;
|
|
void AlphaRectangle(PRectangle rc, XYPOSITION cornerSize, FillStroke fillStroke) override;
|
|
void GradientRectangle(PRectangle rc, const std::vector<ColourStop> &stops, GradientOptions options) override;
|
|
void DrawRGBAImage(PRectangle rc, int width, int height, const unsigned char *pixelsImage) override;
|
|
void Ellipse(PRectangle rc, FillStroke fillStroke) override;
|
|
void Stadium(PRectangle rc, FillStroke fillStroke, Ends ends) override;
|
|
void Copy(PRectangle rc, Point from, Surface &surfaceSource) override;
|
|
|
|
std::unique_ptr<IScreenLineLayout> Layout(const IScreenLine *screenLine) override;
|
|
|
|
void DrawTextCommon(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, int codePageOverride, UINT fuOptions);
|
|
|
|
void DrawTextNoClip(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextClipped(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextTransparent(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore) override;
|
|
void MeasureWidths(const Font *font_, std::string_view text, XYPOSITION *positions) override;
|
|
XYPOSITION WidthText(const Font *font_, std::string_view text) override;
|
|
|
|
void DrawTextNoClipUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextClippedUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore, ColourRGBA back) override;
|
|
void DrawTextTransparentUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, ColourRGBA fore) override;
|
|
void MeasureWidthsUTF8(const Font *font_, std::string_view text, XYPOSITION *positions) override;
|
|
XYPOSITION WidthTextUTF8(const Font *font_, std::string_view text) override;
|
|
|
|
XYPOSITION Ascent(const Font *font_) override;
|
|
XYPOSITION Descent(const Font *font_) override;
|
|
XYPOSITION InternalLeading(const Font *font_) override;
|
|
XYPOSITION Height(const Font *font_) override;
|
|
XYPOSITION AverageCharWidth(const Font *font_) override;
|
|
|
|
void SetClip(PRectangle rc) override;
|
|
void PopClip() override;
|
|
void FlushCachedState() override;
|
|
void FlushDrawing() override;
|
|
|
|
void SetRenderingParams(std::shared_ptr<RenderingParams> renderingParams_) override;
|
|
};
|
|
|
|
SurfaceD2D::SurfaceD2D() noexcept {
|
|
}
|
|
|
|
SurfaceD2D::SurfaceD2D(ID2D1RenderTarget *pRenderTargetCompatible, int width, int height, SurfaceMode mode_, int logPixelsY_) noexcept {
|
|
const D2D1_SIZE_F desiredSize = D2D1::SizeF(static_cast<float>(width), static_cast<float>(height));
|
|
D2D1_PIXEL_FORMAT desiredFormat;
|
|
#ifdef __MINGW32__
|
|
desiredFormat.format = DXGI_FORMAT_UNKNOWN;
|
|
#else
|
|
desiredFormat = pRenderTargetCompatible->GetPixelFormat();
|
|
#endif
|
|
desiredFormat.alphaMode = D2D1_ALPHA_MODE_IGNORE;
|
|
const HRESULT hr = pRenderTargetCompatible->CreateCompatibleRenderTarget(
|
|
&desiredSize, nullptr, &desiredFormat, D2D1_COMPATIBLE_RENDER_TARGET_OPTIONS_NONE, &pBitmapRenderTarget);
|
|
if (SUCCEEDED(hr)) {
|
|
pRenderTarget = pBitmapRenderTarget;
|
|
pRenderTarget->BeginDraw();
|
|
ownRenderTarget = true;
|
|
}
|
|
mode = mode_;
|
|
logPixelsY = logPixelsY_;
|
|
}
|
|
|
|
SurfaceD2D::~SurfaceD2D() noexcept {
|
|
Clear();
|
|
}
|
|
|
|
void SurfaceD2D::Clear() noexcept {
|
|
ReleaseUnknown(pBrush);
|
|
if (pRenderTarget) {
|
|
while (clipsActive) {
|
|
pRenderTarget->PopAxisAlignedClip();
|
|
clipsActive--;
|
|
}
|
|
if (ownRenderTarget) {
|
|
pRenderTarget->EndDraw();
|
|
ReleaseUnknown(pRenderTarget);
|
|
ownRenderTarget = false;
|
|
}
|
|
pRenderTarget = nullptr;
|
|
}
|
|
pBitmapRenderTarget = nullptr;
|
|
}
|
|
|
|
void SurfaceD2D::Release() noexcept {
|
|
Clear();
|
|
}
|
|
|
|
void SurfaceD2D::SetScale(WindowID wid) noexcept {
|
|
fontQuality = invalidFontQuality;
|
|
logPixelsY = DpiForWindow(wid);
|
|
}
|
|
|
|
int SurfaceD2D::SupportsFeature(Supports feature) noexcept {
|
|
for (const Supports f : SupportsD2D) {
|
|
if (f == feature)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool SurfaceD2D::Initialised() {
|
|
return pRenderTarget != nullptr;
|
|
}
|
|
|
|
void SurfaceD2D::Init(WindowID wid) {
|
|
Release();
|
|
SetScale(wid);
|
|
}
|
|
|
|
void SurfaceD2D::Init(SurfaceID sid, WindowID wid) {
|
|
Release();
|
|
SetScale(wid);
|
|
pRenderTarget = static_cast<ID2D1RenderTarget *>(sid);
|
|
}
|
|
|
|
std::unique_ptr<Surface> SurfaceD2D::AllocatePixMap(int width, int height) {
|
|
std::unique_ptr<SurfaceD2D> surf = std::make_unique<SurfaceD2D>(pRenderTarget, width, height, mode, logPixelsY);
|
|
surf->SetRenderingParams(renderingParams);
|
|
return surf;
|
|
}
|
|
|
|
void SurfaceD2D::SetMode(SurfaceMode mode_) {
|
|
mode = mode_;
|
|
}
|
|
|
|
HRESULT SurfaceD2D::GetBitmap(ID2D1Bitmap **ppBitmap) {
|
|
PLATFORM_ASSERT(pBitmapRenderTarget);
|
|
return pBitmapRenderTarget->GetBitmap(ppBitmap);
|
|
}
|
|
|
|
void SurfaceD2D::D2DPenColourAlpha(ColourRGBA fore) noexcept {
|
|
if (pRenderTarget) {
|
|
const D2D_COLOR_F col = ColorFromColourAlpha(fore);
|
|
if (pBrush) {
|
|
pBrush->SetColor(col);
|
|
} else {
|
|
const HRESULT hr = pRenderTarget->CreateSolidColorBrush(col, &pBrush);
|
|
if (!SUCCEEDED(hr)) {
|
|
ReleaseUnknown(pBrush);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::SetFontQuality(FontQuality extraFontFlag) {
|
|
if ((fontQuality != extraFontFlag) && renderingParams) {
|
|
fontQuality = extraFontFlag;
|
|
const D2D1_TEXT_ANTIALIAS_MODE aaMode = DWriteMapFontQuality(extraFontFlag);
|
|
if (aaMode == D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE && renderingParams->customRenderingParams) {
|
|
pRenderTarget->SetTextRenderingParams(renderingParams->customRenderingParams.get());
|
|
} else if (renderingParams->defaultRenderingParams) {
|
|
pRenderTarget->SetTextRenderingParams(renderingParams->defaultRenderingParams.get());
|
|
}
|
|
pRenderTarget->SetTextAntialiasMode(aaMode);
|
|
}
|
|
}
|
|
|
|
int SurfaceD2D::LogPixelsY() {
|
|
return logPixelsY;
|
|
}
|
|
|
|
int SurfaceD2D::PixelDivisions() {
|
|
// Win32 uses device pixels.
|
|
return 1;
|
|
}
|
|
|
|
int SurfaceD2D::DeviceHeightFont(int points) {
|
|
return ::MulDiv(points, LogPixelsY(), 72);
|
|
}
|
|
|
|
void SurfaceD2D::LineDraw(Point start, Point end, Stroke stroke) {
|
|
D2DPenColourAlpha(stroke.colour);
|
|
|
|
D2D1_STROKE_STYLE_PROPERTIES strokeProps {};
|
|
strokeProps.startCap = D2D1_CAP_STYLE_SQUARE;
|
|
strokeProps.endCap = D2D1_CAP_STYLE_SQUARE;
|
|
strokeProps.dashCap = D2D1_CAP_STYLE_FLAT;
|
|
strokeProps.lineJoin = D2D1_LINE_JOIN_MITER;
|
|
strokeProps.miterLimit = 4.0f;
|
|
strokeProps.dashStyle = D2D1_DASH_STYLE_SOLID;
|
|
strokeProps.dashOffset = 0;
|
|
|
|
// get the stroke style to apply
|
|
ID2D1StrokeStyle *pStrokeStyle = nullptr;
|
|
const HRESULT hr = pD2DFactory->CreateStrokeStyle(
|
|
strokeProps, nullptr, 0, &pStrokeStyle);
|
|
if (SUCCEEDED(hr)) {
|
|
pRenderTarget->DrawLine(
|
|
DPointFromPoint(start),
|
|
DPointFromPoint(end), pBrush, stroke.WidthF(), pStrokeStyle);
|
|
}
|
|
|
|
ReleaseUnknown(pStrokeStyle);
|
|
}
|
|
|
|
ID2D1PathGeometry *SurfaceD2D::Geometry(const Point *pts, size_t npts, D2D1_FIGURE_BEGIN figureBegin) noexcept {
|
|
ID2D1PathGeometry *geometry = nullptr;
|
|
HRESULT hr = pD2DFactory->CreatePathGeometry(&geometry);
|
|
if (SUCCEEDED(hr) && geometry) {
|
|
ID2D1GeometrySink *sink = nullptr;
|
|
hr = geometry->Open(&sink);
|
|
if (SUCCEEDED(hr) && sink) {
|
|
sink->BeginFigure(DPointFromPoint(pts[0]), figureBegin);
|
|
for (size_t i = 1; i < npts; i++) {
|
|
sink->AddLine(DPointFromPoint(pts[i]));
|
|
}
|
|
sink->EndFigure((figureBegin == D2D1_FIGURE_BEGIN_FILLED) ?
|
|
D2D1_FIGURE_END_CLOSED : D2D1_FIGURE_END_OPEN);
|
|
sink->Close();
|
|
ReleaseUnknown(sink);
|
|
}
|
|
}
|
|
return geometry;
|
|
}
|
|
|
|
void SurfaceD2D::PolyLine(const Point *pts, size_t npts, Stroke stroke) {
|
|
PLATFORM_ASSERT(pRenderTarget && (npts > 1));
|
|
if (!pRenderTarget || (npts <= 1)) {
|
|
return;
|
|
}
|
|
|
|
ID2D1PathGeometry *geometry = Geometry(pts, npts, D2D1_FIGURE_BEGIN_HOLLOW);
|
|
PLATFORM_ASSERT(geometry);
|
|
if (!geometry) {
|
|
return;
|
|
}
|
|
|
|
D2DPenColourAlpha(stroke.colour);
|
|
D2D1_STROKE_STYLE_PROPERTIES strokeProps {};
|
|
strokeProps.startCap = D2D1_CAP_STYLE_ROUND;
|
|
strokeProps.endCap = D2D1_CAP_STYLE_ROUND;
|
|
strokeProps.dashCap = D2D1_CAP_STYLE_FLAT;
|
|
strokeProps.lineJoin = D2D1_LINE_JOIN_MITER;
|
|
strokeProps.miterLimit = 4.0f;
|
|
strokeProps.dashStyle = D2D1_DASH_STYLE_SOLID;
|
|
strokeProps.dashOffset = 0;
|
|
|
|
// get the stroke style to apply
|
|
ID2D1StrokeStyle *pStrokeStyle = nullptr;
|
|
const HRESULT hr = pD2DFactory->CreateStrokeStyle(
|
|
strokeProps, nullptr, 0, &pStrokeStyle);
|
|
if (SUCCEEDED(hr)) {
|
|
pRenderTarget->DrawGeometry(geometry, pBrush, stroke.WidthF(), pStrokeStyle);
|
|
}
|
|
ReleaseUnknown(pStrokeStyle);
|
|
ReleaseUnknown(geometry);
|
|
}
|
|
|
|
void SurfaceD2D::Polygon(const Point *pts, size_t npts, FillStroke fillStroke) {
|
|
PLATFORM_ASSERT(pRenderTarget && (npts > 2));
|
|
if (pRenderTarget) {
|
|
ID2D1PathGeometry *geometry = Geometry(pts, npts, D2D1_FIGURE_BEGIN_FILLED);
|
|
PLATFORM_ASSERT(geometry);
|
|
if (geometry) {
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillGeometry(geometry, pBrush);
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawGeometry(geometry, pBrush, fillStroke.stroke.WidthF());
|
|
ReleaseUnknown(geometry);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::RectangleDraw(PRectangle rc, FillStroke fillStroke) {
|
|
if (!pRenderTarget)
|
|
return;
|
|
const D2D1_RECT_F rect = RectangleFromPRectangle(rc);
|
|
const D2D1_RECT_F rectFill = RectangleInset(rect, fillStroke.stroke.WidthF());
|
|
const float halfStroke = fillStroke.stroke.WidthF() / 2.0f;
|
|
const D2D1_RECT_F rectOutline = RectangleInset(rect, halfStroke);
|
|
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillRectangle(&rectFill, pBrush);
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawRectangle(&rectOutline, pBrush, fillStroke.stroke.WidthF());
|
|
}
|
|
|
|
void SurfaceD2D::RectangleFrame(PRectangle rc, Stroke stroke) {
|
|
if (pRenderTarget) {
|
|
const XYPOSITION halfStroke = stroke.width / 2.0f;
|
|
const D2D1_RECT_F rectangle1 = RectangleFromPRectangle(rc.Inset(halfStroke));
|
|
D2DPenColourAlpha(stroke.colour);
|
|
pRenderTarget->DrawRectangle(&rectangle1, pBrush, stroke.WidthF());
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::FillRectangle(PRectangle rc, Fill fill) {
|
|
if (pRenderTarget) {
|
|
D2DPenColourAlpha(fill.colour);
|
|
const D2D1_RECT_F rectangle = RectangleFromPRectangle(rc);
|
|
pRenderTarget->FillRectangle(&rectangle, pBrush);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::FillRectangleAligned(PRectangle rc, Fill fill) {
|
|
FillRectangle(PixelAlign(rc, 1), fill);
|
|
}
|
|
|
|
void SurfaceD2D::FillRectangle(PRectangle rc, Surface &surfacePattern) {
|
|
SurfaceD2D *psurfOther = dynamic_cast<SurfaceD2D *>(&surfacePattern);
|
|
PLATFORM_ASSERT(psurfOther);
|
|
if (!psurfOther) {
|
|
throw std::runtime_error("SurfaceD2D::FillRectangle: wrong Surface type.");
|
|
}
|
|
ID2D1Bitmap *pBitmap = nullptr;
|
|
HRESULT hr = psurfOther->GetBitmap(&pBitmap);
|
|
if (SUCCEEDED(hr) && pBitmap) {
|
|
ID2D1BitmapBrush *pBitmapBrush = nullptr;
|
|
const D2D1_BITMAP_BRUSH_PROPERTIES brushProperties =
|
|
D2D1::BitmapBrushProperties(D2D1_EXTEND_MODE_WRAP, D2D1_EXTEND_MODE_WRAP,
|
|
D2D1_BITMAP_INTERPOLATION_MODE_NEAREST_NEIGHBOR);
|
|
// Create the bitmap brush.
|
|
hr = pRenderTarget->CreateBitmapBrush(pBitmap, brushProperties, &pBitmapBrush);
|
|
ReleaseUnknown(pBitmap);
|
|
if (SUCCEEDED(hr) && pBitmapBrush) {
|
|
pRenderTarget->FillRectangle(
|
|
RectangleFromPRectangle(rc),
|
|
pBitmapBrush);
|
|
ReleaseUnknown(pBitmapBrush);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::RoundedRectangle(PRectangle rc, FillStroke fillStroke) {
|
|
if (pRenderTarget) {
|
|
D2D1_ROUNDED_RECT roundedRectFill = {
|
|
RectangleFromPRectangle(rc.Inset(1.0)),
|
|
4, 4};
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillRoundedRectangle(roundedRectFill, pBrush);
|
|
|
|
D2D1_ROUNDED_RECT roundedRect = {
|
|
RectangleFromPRectangle(rc.Inset(0.5)),
|
|
4, 4};
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawRoundedRectangle(roundedRect, pBrush, fillStroke.stroke.WidthF());
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::AlphaRectangle(PRectangle rc, XYPOSITION cornerSize, FillStroke fillStroke) {
|
|
const D2D1_RECT_F rect = RectangleFromPRectangle(rc);
|
|
const D2D1_RECT_F rectFill = RectangleInset(rect, fillStroke.stroke.WidthF());
|
|
const float halfStroke = fillStroke.stroke.WidthF() / 2.0f;
|
|
const D2D1_RECT_F rectOutline = RectangleInset(rect, halfStroke);
|
|
if (pRenderTarget) {
|
|
if (cornerSize == 0) {
|
|
// When corner size is zero, draw square rectangle to prevent blurry pixels at corners
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillRectangle(rectFill, pBrush);
|
|
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawRectangle(rectOutline, pBrush, fillStroke.stroke.WidthF());
|
|
} else {
|
|
const float cornerSizeF = static_cast<float>(cornerSize);
|
|
D2D1_ROUNDED_RECT roundedRectFill = {
|
|
rectFill, cornerSizeF - 1.0f, cornerSizeF - 1.0f };
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillRoundedRectangle(roundedRectFill, pBrush);
|
|
|
|
D2D1_ROUNDED_RECT roundedRect = {
|
|
rectOutline, cornerSizeF, cornerSizeF};
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawRoundedRectangle(roundedRect, pBrush, fillStroke.stroke.WidthF());
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::GradientRectangle(PRectangle rc, const std::vector<ColourStop> &stops, GradientOptions options) {
|
|
if (pRenderTarget) {
|
|
D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES lgbp {
|
|
DPointFromPoint(Point(rc.left, rc.top)), {}
|
|
};
|
|
switch (options) {
|
|
case GradientOptions::leftToRight:
|
|
lgbp.endPoint = DPointFromPoint(Point(rc.right, rc.top));
|
|
break;
|
|
case GradientOptions::topToBottom:
|
|
default:
|
|
lgbp.endPoint = DPointFromPoint(Point(rc.left, rc.bottom));
|
|
break;
|
|
}
|
|
|
|
std::vector<D2D1_GRADIENT_STOP> gradientStops;
|
|
for (const ColourStop &stop : stops) {
|
|
gradientStops.push_back({ static_cast<FLOAT>(stop.position), ColorFromColourAlpha(stop.colour) });
|
|
}
|
|
ID2D1GradientStopCollection *pGradientStops = nullptr;
|
|
HRESULT hr = pRenderTarget->CreateGradientStopCollection(
|
|
gradientStops.data(), static_cast<UINT32>(gradientStops.size()), &pGradientStops);
|
|
if (FAILED(hr) || !pGradientStops) {
|
|
return;
|
|
}
|
|
ID2D1LinearGradientBrush *pBrushLinear = nullptr;
|
|
hr = pRenderTarget->CreateLinearGradientBrush(
|
|
lgbp, pGradientStops, &pBrushLinear);
|
|
if (SUCCEEDED(hr) && pBrushLinear) {
|
|
const D2D1_RECT_F rectangle = RectangleFromPRectangle(PRectangle(
|
|
std::round(rc.left), rc.top, std::round(rc.right), rc.bottom));
|
|
pRenderTarget->FillRectangle(&rectangle, pBrushLinear);
|
|
ReleaseUnknown(pBrushLinear);
|
|
}
|
|
ReleaseUnknown(pGradientStops);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawRGBAImage(PRectangle rc, int width, int height, const unsigned char *pixelsImage) {
|
|
if (pRenderTarget) {
|
|
if (rc.Width() > width)
|
|
rc.left += std::floor((rc.Width() - width) / 2);
|
|
rc.right = rc.left + width;
|
|
if (rc.Height() > height)
|
|
rc.top += std::floor((rc.Height() - height) / 2);
|
|
rc.bottom = rc.top + height;
|
|
|
|
std::vector<unsigned char> image(RGBAImage::bytesPerPixel * height * width);
|
|
RGBAImage::BGRAFromRGBA(image.data(), pixelsImage, static_cast<ptrdiff_t>(height) * width);
|
|
|
|
ID2D1Bitmap *bitmap = nullptr;
|
|
const D2D1_SIZE_U size = D2D1::SizeU(width, height);
|
|
D2D1_BITMAP_PROPERTIES props = {{DXGI_FORMAT_B8G8R8A8_UNORM,
|
|
D2D1_ALPHA_MODE_PREMULTIPLIED}, 72.0, 72.0};
|
|
const HRESULT hr = pRenderTarget->CreateBitmap(size, image.data(),
|
|
width * 4, &props, &bitmap);
|
|
if (SUCCEEDED(hr)) {
|
|
const D2D1_RECT_F rcDestination = RectangleFromPRectangle(rc);
|
|
pRenderTarget->DrawBitmap(bitmap, rcDestination);
|
|
ReleaseUnknown(bitmap);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::Ellipse(PRectangle rc, FillStroke fillStroke) {
|
|
if (!pRenderTarget)
|
|
return;
|
|
const D2D1_POINT_2F centre = DPointFromPoint(rc.Centre());
|
|
|
|
const FLOAT radiusFill = static_cast<FLOAT>(rc.Width() / 2.0f - fillStroke.stroke.width);
|
|
const D2D1_ELLIPSE ellipseFill = { centre, radiusFill, radiusFill };
|
|
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillEllipse(ellipseFill, pBrush);
|
|
|
|
const FLOAT radiusOutline = static_cast<FLOAT>(rc.Width() / 2.0f - fillStroke.stroke.width / 2.0f);
|
|
const D2D1_ELLIPSE ellipseOutline = { centre, radiusOutline, radiusOutline };
|
|
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawEllipse(ellipseOutline, pBrush, fillStroke.stroke.WidthF());
|
|
}
|
|
|
|
void SurfaceD2D::Stadium(PRectangle rc, FillStroke fillStroke, Ends ends) {
|
|
if (!pRenderTarget)
|
|
return;
|
|
if (rc.Width() < rc.Height()) {
|
|
// Can't draw nice ends so just draw a rectangle
|
|
RectangleDraw(rc, fillStroke);
|
|
return;
|
|
}
|
|
const FLOAT radius = static_cast<FLOAT>(rc.Height() / 2.0);
|
|
const FLOAT radiusFill = radius - fillStroke.stroke.WidthF();
|
|
const FLOAT halfStroke = fillStroke.stroke.WidthF() / 2.0f;
|
|
if (ends == Surface::Ends::semiCircles) {
|
|
const D2D1_RECT_F rect = RectangleFromPRectangle(rc);
|
|
D2D1_ROUNDED_RECT roundedRectFill = { RectangleInset(rect, fillStroke.stroke.WidthF()),
|
|
radiusFill, radiusFill };
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillRoundedRectangle(roundedRectFill, pBrush);
|
|
|
|
D2D1_ROUNDED_RECT roundedRect = { RectangleInset(rect, halfStroke),
|
|
radius, radius };
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawRoundedRectangle(roundedRect, pBrush, fillStroke.stroke.WidthF());
|
|
} else {
|
|
const Ends leftSide = static_cast<Ends>(static_cast<int>(ends) & 0xf);
|
|
const Ends rightSide = static_cast<Ends>(static_cast<int>(ends) & 0xf0);
|
|
PRectangle rcInner = rc;
|
|
rcInner.left += radius;
|
|
rcInner.right -= radius;
|
|
ID2D1PathGeometry *pathGeometry = nullptr;
|
|
const HRESULT hrGeometry = pD2DFactory->CreatePathGeometry(&pathGeometry);
|
|
if (FAILED(hrGeometry) || !pathGeometry)
|
|
return;
|
|
ID2D1GeometrySink *pSink = nullptr;
|
|
const HRESULT hrSink = pathGeometry->Open(&pSink);
|
|
if (SUCCEEDED(hrSink) && pSink) {
|
|
switch (leftSide) {
|
|
case Ends::leftFlat:
|
|
pSink->BeginFigure(DPointFromPoint(Point(rc.left + halfStroke, rc.top + halfStroke)), D2D1_FIGURE_BEGIN_FILLED);
|
|
pSink->AddLine(DPointFromPoint(Point(rc.left + halfStroke, rc.bottom - halfStroke)));
|
|
break;
|
|
case Ends::leftAngle:
|
|
pSink->BeginFigure(DPointFromPoint(Point(rcInner.left + halfStroke, rc.top + halfStroke)), D2D1_FIGURE_BEGIN_FILLED);
|
|
pSink->AddLine(DPointFromPoint(Point(rc.left + halfStroke, rc.Centre().y)));
|
|
pSink->AddLine(DPointFromPoint(Point(rcInner.left + halfStroke, rc.bottom - halfStroke)));
|
|
break;
|
|
case Ends::semiCircles:
|
|
default: {
|
|
pSink->BeginFigure(DPointFromPoint(Point(rcInner.left + halfStroke, rc.top + halfStroke)), D2D1_FIGURE_BEGIN_FILLED);
|
|
D2D1_ARC_SEGMENT segment{};
|
|
segment.point = DPointFromPoint(Point(rcInner.left + halfStroke, rc.bottom - halfStroke));
|
|
segment.size = D2D1::SizeF(radiusFill, radiusFill);
|
|
segment.rotationAngle = 0.0f;
|
|
segment.sweepDirection = D2D1_SWEEP_DIRECTION_COUNTER_CLOCKWISE;
|
|
segment.arcSize = D2D1_ARC_SIZE_SMALL;
|
|
pSink->AddArc(segment);
|
|
}
|
|
break;
|
|
}
|
|
|
|
switch (rightSide) {
|
|
case Ends::rightFlat:
|
|
pSink->AddLine(DPointFromPoint(Point(rc.right - halfStroke, rc.bottom - halfStroke)));
|
|
pSink->AddLine(DPointFromPoint(Point(rc.right - halfStroke, rc.top + halfStroke)));
|
|
break;
|
|
case Ends::rightAngle:
|
|
pSink->AddLine(DPointFromPoint(Point(rcInner.right - halfStroke, rc.bottom - halfStroke)));
|
|
pSink->AddLine(DPointFromPoint(Point(rc.right - halfStroke, rc.Centre().y)));
|
|
pSink->AddLine(DPointFromPoint(Point(rcInner.right - halfStroke, rc.top + halfStroke)));
|
|
break;
|
|
case Ends::semiCircles:
|
|
default: {
|
|
pSink->AddLine(DPointFromPoint(Point(rcInner.right - halfStroke, rc.bottom - halfStroke)));
|
|
D2D1_ARC_SEGMENT segment{};
|
|
segment.point = DPointFromPoint(Point(rcInner.right - halfStroke, rc.top + halfStroke));
|
|
segment.size = D2D1::SizeF(radiusFill, radiusFill);
|
|
segment.rotationAngle = 0.0f;
|
|
segment.sweepDirection = D2D1_SWEEP_DIRECTION_COUNTER_CLOCKWISE;
|
|
segment.arcSize = D2D1_ARC_SIZE_SMALL;
|
|
pSink->AddArc(segment);
|
|
}
|
|
break;
|
|
}
|
|
|
|
pSink->EndFigure(D2D1_FIGURE_END_CLOSED);
|
|
|
|
pSink->Close();
|
|
}
|
|
ReleaseUnknown(pSink);
|
|
D2DPenColourAlpha(fillStroke.fill.colour);
|
|
pRenderTarget->FillGeometry(pathGeometry, pBrush);
|
|
D2DPenColourAlpha(fillStroke.stroke.colour);
|
|
pRenderTarget->DrawGeometry(pathGeometry, pBrush, fillStroke.stroke.WidthF());
|
|
ReleaseUnknown(pathGeometry);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::Copy(PRectangle rc, Point from, Surface &surfaceSource) {
|
|
SurfaceD2D &surfOther = dynamic_cast<SurfaceD2D &>(surfaceSource);
|
|
ID2D1Bitmap *pBitmap = nullptr;
|
|
const HRESULT hr = surfOther.GetBitmap(&pBitmap);
|
|
if (SUCCEEDED(hr) && pBitmap) {
|
|
const D2D1_RECT_F rcDestination = RectangleFromPRectangle(rc);
|
|
const D2D1_RECT_F rcSource = RectangleFromPRectangle(PRectangle(
|
|
from.x, from.y, from.x + rc.Width(), from.y + rc.Height()));
|
|
pRenderTarget->DrawBitmap(pBitmap, rcDestination, 1.0f,
|
|
D2D1_BITMAP_INTERPOLATION_MODE_NEAREST_NEIGHBOR, rcSource);
|
|
ReleaseUnknown(pBitmap);
|
|
}
|
|
}
|
|
|
|
class BlobInline : public IDWriteInlineObject {
|
|
XYPOSITION width;
|
|
|
|
// IUnknown
|
|
STDMETHODIMP QueryInterface(REFIID riid, PVOID *ppv) override;
|
|
STDMETHODIMP_(ULONG)AddRef() override;
|
|
STDMETHODIMP_(ULONG)Release() override;
|
|
|
|
// IDWriteInlineObject
|
|
COM_DECLSPEC_NOTHROW STDMETHODIMP Draw(
|
|
void *clientDrawingContext,
|
|
IDWriteTextRenderer *renderer,
|
|
FLOAT originX,
|
|
FLOAT originY,
|
|
BOOL isSideways,
|
|
BOOL isRightToLeft,
|
|
IUnknown *clientDrawingEffect
|
|
) override;
|
|
COM_DECLSPEC_NOTHROW STDMETHODIMP GetMetrics(DWRITE_INLINE_OBJECT_METRICS *metrics) override;
|
|
COM_DECLSPEC_NOTHROW STDMETHODIMP GetOverhangMetrics(DWRITE_OVERHANG_METRICS *overhangs) override;
|
|
COM_DECLSPEC_NOTHROW STDMETHODIMP GetBreakConditions(
|
|
DWRITE_BREAK_CONDITION *breakConditionBefore,
|
|
DWRITE_BREAK_CONDITION *breakConditionAfter) override;
|
|
public:
|
|
BlobInline(XYPOSITION width_=0.0f) noexcept : width(width_) {
|
|
}
|
|
// Defaulted so BlobInline objects can be copied.
|
|
BlobInline(const BlobInline &) = default;
|
|
BlobInline(BlobInline &&) = default;
|
|
BlobInline &operator=(const BlobInline &) = default;
|
|
BlobInline &operator=(BlobInline &&) = default;
|
|
virtual ~BlobInline() noexcept = default;
|
|
};
|
|
|
|
/// Implement IUnknown
|
|
STDMETHODIMP BlobInline::QueryInterface(REFIID riid, PVOID *ppv) {
|
|
if (!ppv)
|
|
return E_POINTER;
|
|
// Never called so not checked.
|
|
*ppv = nullptr;
|
|
if (riid == IID_IUnknown)
|
|
*ppv = static_cast<IUnknown *>(this);
|
|
if (riid == __uuidof(IDWriteInlineObject))
|
|
*ppv = static_cast<IDWriteInlineObject *>(this);
|
|
if (!*ppv)
|
|
return E_NOINTERFACE;
|
|
return S_OK;
|
|
}
|
|
|
|
STDMETHODIMP_(ULONG) BlobInline::AddRef() {
|
|
// Lifetime tied to Platform methods so ignore any reference operations.
|
|
return 1;
|
|
}
|
|
|
|
STDMETHODIMP_(ULONG) BlobInline::Release() {
|
|
// Lifetime tied to Platform methods so ignore any reference operations.
|
|
return 1;
|
|
}
|
|
|
|
/// Implement IDWriteInlineObject
|
|
COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE BlobInline::Draw(
|
|
void*,
|
|
IDWriteTextRenderer*,
|
|
FLOAT,
|
|
FLOAT,
|
|
BOOL,
|
|
BOOL,
|
|
IUnknown*) {
|
|
// Since not performing drawing, not necessary to implement
|
|
// Could be implemented by calling back into platform-independent code.
|
|
// This would allow more of the drawing to be mediated through DirectWrite.
|
|
return S_OK;
|
|
}
|
|
|
|
COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE BlobInline::GetMetrics(
|
|
DWRITE_INLINE_OBJECT_METRICS *metrics
|
|
) {
|
|
if (!metrics)
|
|
return E_POINTER;
|
|
metrics->width = static_cast<FLOAT>(width);
|
|
metrics->height = 2;
|
|
metrics->baseline = 1;
|
|
metrics->supportsSideways = FALSE;
|
|
return S_OK;
|
|
}
|
|
|
|
COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE BlobInline::GetOverhangMetrics(
|
|
DWRITE_OVERHANG_METRICS *overhangs
|
|
) {
|
|
if (!overhangs)
|
|
return E_POINTER;
|
|
overhangs->left = 0;
|
|
overhangs->top = 0;
|
|
overhangs->right = 0;
|
|
overhangs->bottom = 0;
|
|
return S_OK;
|
|
}
|
|
|
|
COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE BlobInline::GetBreakConditions(
|
|
DWRITE_BREAK_CONDITION *breakConditionBefore,
|
|
DWRITE_BREAK_CONDITION *breakConditionAfter
|
|
) {
|
|
if (!breakConditionBefore || !breakConditionAfter)
|
|
return E_POINTER;
|
|
// Since not performing 2D layout, not necessary to implement
|
|
*breakConditionBefore = DWRITE_BREAK_CONDITION_NEUTRAL;
|
|
*breakConditionAfter = DWRITE_BREAK_CONDITION_NEUTRAL;
|
|
return S_OK;
|
|
}
|
|
|
|
class ScreenLineLayout : public IScreenLineLayout {
|
|
IDWriteTextLayout *textLayout = nullptr;
|
|
std::string text;
|
|
std::wstring buffer;
|
|
std::vector<BlobInline> blobs;
|
|
static void FillTextLayoutFormats(const IScreenLine *screenLine, IDWriteTextLayout *textLayout, std::vector<BlobInline> &blobs);
|
|
static std::wstring ReplaceRepresentation(std::string_view text);
|
|
static size_t GetPositionInLayout(std::string_view text, size_t position);
|
|
public:
|
|
ScreenLineLayout(const IScreenLine *screenLine);
|
|
// Deleted so ScreenLineLayout objects can not be copied
|
|
ScreenLineLayout(const ScreenLineLayout &) = delete;
|
|
ScreenLineLayout(ScreenLineLayout &&) = delete;
|
|
ScreenLineLayout &operator=(const ScreenLineLayout &) = delete;
|
|
ScreenLineLayout &operator=(ScreenLineLayout &&) = delete;
|
|
~ScreenLineLayout() noexcept override;
|
|
size_t PositionFromX(XYPOSITION xDistance, bool charPosition) override;
|
|
XYPOSITION XFromPosition(size_t caretPosition) override;
|
|
std::vector<Interval> FindRangeIntervals(size_t start, size_t end) override;
|
|
};
|
|
|
|
// Each char can have its own style, so we fill the textLayout with the textFormat of each char
|
|
|
|
void ScreenLineLayout::FillTextLayoutFormats(const IScreenLine *screenLine, IDWriteTextLayout *textLayout, std::vector<BlobInline> &blobs) {
|
|
// Reserve enough entries up front so they are not moved and the pointers handed
|
|
// to textLayout remain valid.
|
|
const ptrdiff_t numRepresentations = screenLine->RepresentationCount();
|
|
std::string_view text = screenLine->Text();
|
|
const ptrdiff_t numTabs = std::count(std::begin(text), std::end(text), '\t');
|
|
blobs.reserve(numRepresentations + numTabs);
|
|
|
|
UINT32 layoutPosition = 0;
|
|
|
|
for (size_t bytePosition = 0; bytePosition < screenLine->Length();) {
|
|
const unsigned char uch = screenLine->Text()[bytePosition];
|
|
const unsigned int byteCount = UTF8BytesOfLead[uch];
|
|
const UINT32 codeUnits = UTF16LengthFromUTF8ByteCount(byteCount);
|
|
const DWRITE_TEXT_RANGE textRange = { layoutPosition, codeUnits };
|
|
|
|
XYPOSITION representationWidth = screenLine->RepresentationWidth(bytePosition);
|
|
if ((representationWidth == 0.0f) && (screenLine->Text()[bytePosition] == '\t')) {
|
|
D2D1_POINT_2F realPt {};
|
|
DWRITE_HIT_TEST_METRICS realCaretMetrics {};
|
|
textLayout->HitTestTextPosition(
|
|
layoutPosition,
|
|
false, // trailing if false, else leading edge
|
|
&realPt.x,
|
|
&realPt.y,
|
|
&realCaretMetrics
|
|
);
|
|
|
|
const XYPOSITION nextTab = screenLine->TabPositionAfter(realPt.x);
|
|
representationWidth = nextTab - realPt.x;
|
|
}
|
|
if (representationWidth > 0.0f) {
|
|
blobs.push_back(BlobInline(representationWidth));
|
|
textLayout->SetInlineObject(&blobs.back(), textRange);
|
|
};
|
|
|
|
const FontDirectWrite *pfm =
|
|
dynamic_cast<const FontDirectWrite *>(screenLine->FontOfPosition(bytePosition));
|
|
if (!pfm) {
|
|
throw std::runtime_error("FillTextLayoutFormats: wrong Font type.");
|
|
}
|
|
|
|
const unsigned int fontFamilyNameSize = pfm->pTextFormat->GetFontFamilyNameLength();
|
|
std::wstring fontFamilyName(fontFamilyNameSize, 0);
|
|
const HRESULT hrFamily = pfm->pTextFormat->GetFontFamilyName(fontFamilyName.data(), fontFamilyNameSize + 1);
|
|
if (SUCCEEDED(hrFamily)) {
|
|
textLayout->SetFontFamilyName(fontFamilyName.c_str(), textRange);
|
|
}
|
|
|
|
textLayout->SetFontSize(pfm->pTextFormat->GetFontSize(), textRange);
|
|
textLayout->SetFontWeight(pfm->pTextFormat->GetFontWeight(), textRange);
|
|
textLayout->SetFontStyle(pfm->pTextFormat->GetFontStyle(), textRange);
|
|
|
|
const unsigned int localeNameSize = pfm->pTextFormat->GetLocaleNameLength();
|
|
std::wstring localeName(localeNameSize, 0);
|
|
const HRESULT hrLocale = pfm->pTextFormat->GetLocaleName(localeName.data(), localeNameSize + 1);
|
|
if (SUCCEEDED(hrLocale)) {
|
|
textLayout->SetLocaleName(localeName.c_str(), textRange);
|
|
}
|
|
|
|
textLayout->SetFontStretch(pfm->pTextFormat->GetFontStretch(), textRange);
|
|
|
|
IDWriteFontCollection *fontCollection = nullptr;
|
|
if (SUCCEEDED(pfm->pTextFormat->GetFontCollection(&fontCollection))) {
|
|
textLayout->SetFontCollection(fontCollection, textRange);
|
|
}
|
|
|
|
bytePosition += byteCount;
|
|
layoutPosition += codeUnits;
|
|
}
|
|
|
|
}
|
|
|
|
/* Convert to a wide character string and replace tabs with X to stop DirectWrite tab expansion */
|
|
|
|
std::wstring ScreenLineLayout::ReplaceRepresentation(std::string_view text) {
|
|
const TextWide wideText(text, CpUtf8);
|
|
std::wstring ws(wideText.buffer, wideText.tlen);
|
|
std::replace(ws.begin(), ws.end(), L'\t', L'X');
|
|
return ws;
|
|
}
|
|
|
|
// Finds the position in the wide character version of the text.
|
|
|
|
size_t ScreenLineLayout::GetPositionInLayout(std::string_view text, size_t position) {
|
|
const std::string_view textUptoPosition = text.substr(0, position);
|
|
return UTF16Length(textUptoPosition);
|
|
}
|
|
|
|
ScreenLineLayout::ScreenLineLayout(const IScreenLine *screenLine) {
|
|
// If the text is empty, then no need to go through this function
|
|
if (!screenLine || !screenLine->Length())
|
|
return;
|
|
|
|
text = screenLine->Text();
|
|
|
|
// Get textFormat
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(screenLine->FontOfPosition(0));
|
|
if (!pfm->pTextFormat) {
|
|
return;
|
|
}
|
|
|
|
// Convert the string to wstring and replace the original control characters with their representative chars.
|
|
buffer = ReplaceRepresentation(screenLine->Text());
|
|
|
|
// Create a text layout
|
|
const HRESULT hrCreate = pIDWriteFactory->CreateTextLayout(
|
|
buffer.c_str(),
|
|
static_cast<UINT32>(buffer.length()),
|
|
pfm->pTextFormat,
|
|
static_cast<FLOAT>(screenLine->Width()),
|
|
static_cast<FLOAT>(screenLine->Height()),
|
|
&textLayout);
|
|
if (!SUCCEEDED(hrCreate)) {
|
|
return;
|
|
}
|
|
|
|
// Fill the textLayout chars with their own formats
|
|
FillTextLayoutFormats(screenLine, textLayout, blobs);
|
|
}
|
|
|
|
ScreenLineLayout::~ScreenLineLayout() noexcept {
|
|
ReleaseUnknown(textLayout);
|
|
}
|
|
|
|
// Get the position from the provided x
|
|
|
|
size_t ScreenLineLayout::PositionFromX(XYPOSITION xDistance, bool charPosition) {
|
|
if (!textLayout) {
|
|
return 0;
|
|
}
|
|
|
|
// Returns the text position corresponding to the mouse x,y.
|
|
// If hitting the trailing side of a cluster, return the
|
|
// leading edge of the following text position.
|
|
|
|
BOOL isTrailingHit = FALSE;
|
|
BOOL isInside = FALSE;
|
|
DWRITE_HIT_TEST_METRICS caretMetrics {};
|
|
|
|
textLayout->HitTestPoint(
|
|
static_cast<FLOAT>(xDistance),
|
|
0.0f,
|
|
&isTrailingHit,
|
|
&isInside,
|
|
&caretMetrics
|
|
);
|
|
|
|
DWRITE_HIT_TEST_METRICS hitTestMetrics {};
|
|
if (isTrailingHit) {
|
|
FLOAT caretX = 0.0f;
|
|
FLOAT caretY = 0.0f;
|
|
|
|
// Uses hit-testing to align the current caret position to a whole cluster,
|
|
// rather than residing in the middle of a base character + diacritic,
|
|
// surrogate pair, or character + UVS.
|
|
|
|
// Align the caret to the nearest whole cluster.
|
|
textLayout->HitTestTextPosition(
|
|
caretMetrics.textPosition,
|
|
false,
|
|
&caretX,
|
|
&caretY,
|
|
&hitTestMetrics
|
|
);
|
|
}
|
|
|
|
size_t pos;
|
|
if (charPosition) {
|
|
pos = isTrailingHit ? hitTestMetrics.textPosition : caretMetrics.textPosition;
|
|
} else {
|
|
pos = isTrailingHit ? static_cast<size_t>(hitTestMetrics.textPosition) + hitTestMetrics.length : caretMetrics.textPosition;
|
|
}
|
|
|
|
// Get the character position in original string
|
|
return UTF8PositionFromUTF16Position(text, pos);
|
|
}
|
|
|
|
// Finds the point of the caret position
|
|
|
|
XYPOSITION ScreenLineLayout::XFromPosition(size_t caretPosition) {
|
|
if (!textLayout) {
|
|
return 0.0;
|
|
}
|
|
// Convert byte positions to wchar_t positions
|
|
const size_t position = GetPositionInLayout(text, caretPosition);
|
|
|
|
// Translate text character offset to point x,y.
|
|
DWRITE_HIT_TEST_METRICS caretMetrics {};
|
|
D2D1_POINT_2F pt {};
|
|
|
|
textLayout->HitTestTextPosition(
|
|
static_cast<UINT32>(position),
|
|
false, // trailing if false, else leading edge
|
|
&pt.x,
|
|
&pt.y,
|
|
&caretMetrics
|
|
);
|
|
|
|
return pt.x;
|
|
}
|
|
|
|
// Find the selection range rectangles
|
|
|
|
std::vector<Interval> ScreenLineLayout::FindRangeIntervals(size_t start, size_t end) {
|
|
std::vector<Interval> ret;
|
|
|
|
if (!textLayout || (start == end)) {
|
|
return ret;
|
|
}
|
|
|
|
// Convert byte positions to wchar_t positions
|
|
const size_t startPos = GetPositionInLayout(text, start);
|
|
const size_t endPos = GetPositionInLayout(text, end);
|
|
|
|
// Find selection range length
|
|
const size_t rangeLength = (endPos > startPos) ? (endPos - startPos) : (startPos - endPos);
|
|
|
|
// Determine actual number of hit-test ranges
|
|
UINT32 actualHitTestCount = 0;
|
|
|
|
// First try with 2 elements and if more needed, allocate.
|
|
std::vector<DWRITE_HIT_TEST_METRICS> hitTestMetrics(2);
|
|
textLayout->HitTestTextRange(
|
|
static_cast<UINT32>(startPos),
|
|
static_cast<UINT32>(rangeLength),
|
|
0, // x
|
|
0, // y
|
|
hitTestMetrics.data(),
|
|
static_cast<UINT32>(hitTestMetrics.size()),
|
|
&actualHitTestCount
|
|
);
|
|
|
|
if (actualHitTestCount == 0) {
|
|
return ret;
|
|
}
|
|
|
|
if (hitTestMetrics.size() < actualHitTestCount) {
|
|
// Allocate enough room to return all hit-test metrics.
|
|
hitTestMetrics.resize(actualHitTestCount);
|
|
textLayout->HitTestTextRange(
|
|
static_cast<UINT32>(startPos),
|
|
static_cast<UINT32>(rangeLength),
|
|
0, // x
|
|
0, // y
|
|
hitTestMetrics.data(),
|
|
static_cast<UINT32>(hitTestMetrics.size()),
|
|
&actualHitTestCount
|
|
);
|
|
}
|
|
|
|
// Get the selection ranges behind the text.
|
|
|
|
for (size_t i = 0; i < actualHitTestCount; ++i) {
|
|
// Store selection rectangle
|
|
const DWRITE_HIT_TEST_METRICS &htm = hitTestMetrics[i];
|
|
const Interval selectionInterval { htm.left, htm.left + htm.width };
|
|
ret.push_back(selectionInterval);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
std::unique_ptr<IScreenLineLayout> SurfaceD2D::Layout(const IScreenLine *screenLine) {
|
|
return std::make_unique<ScreenLineLayout>(screenLine);
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextCommon(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text, int codePageOverride, UINT fuOptions) {
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
if (pfm->pTextFormat && pRenderTarget && pBrush) {
|
|
// Use Unicode calls
|
|
const int codePageDraw = codePageOverride ? codePageOverride : pfm->CodePageText(mode.codePage);
|
|
const TextWide tbuf(text, codePageDraw);
|
|
|
|
SetFontQuality(pfm->extraFontFlag);
|
|
if (fuOptions & ETO_CLIPPED) {
|
|
const D2D1_RECT_F rcClip = RectangleFromPRectangle(rc);
|
|
pRenderTarget->PushAxisAlignedClip(rcClip, D2D1_ANTIALIAS_MODE_ALIASED);
|
|
}
|
|
|
|
// Explicitly creating a text layout appears a little faster
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
const HRESULT hr = pIDWriteFactory->CreateTextLayout(
|
|
tbuf.buffer,
|
|
tbuf.tlen,
|
|
pfm->pTextFormat,
|
|
static_cast<FLOAT>(rc.Width()),
|
|
static_cast<FLOAT>(rc.Height()),
|
|
&pTextLayout);
|
|
if (SUCCEEDED(hr)) {
|
|
const D2D1_POINT_2F origin = DPointFromPoint(Point(rc.left, ybase - pfm->yAscent));
|
|
pRenderTarget->DrawTextLayout(origin, pTextLayout, pBrush, d2dDrawTextOptions);
|
|
ReleaseUnknown(pTextLayout);
|
|
}
|
|
|
|
if (fuOptions & ETO_CLIPPED) {
|
|
pRenderTarget->PopAxisAlignedClip();
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextNoClip(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
if (pRenderTarget) {
|
|
FillRectangleAligned(rc, back);
|
|
D2DPenColourAlpha(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, 0, ETO_OPAQUE);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextClipped(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
if (pRenderTarget) {
|
|
FillRectangleAligned(rc, back);
|
|
D2DPenColourAlpha(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, 0, ETO_OPAQUE | ETO_CLIPPED);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextTransparent(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore) {
|
|
// Avoid drawing spaces in transparent mode
|
|
for (const char ch : text) {
|
|
if (ch != ' ') {
|
|
if (pRenderTarget) {
|
|
D2DPenColourAlpha(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, 0, 0);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::MeasureWidths(const Font *font_, std::string_view text, XYPOSITION *positions) {
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
if (!pfm->pTextFormat) {
|
|
// SetFont failed or no access to DirectWrite so give up.
|
|
return;
|
|
}
|
|
const int codePageText = pfm->CodePageText(mode.codePage);
|
|
const TextWide tbuf(text, codePageText);
|
|
TextPositions poses(tbuf.tlen);
|
|
// Initialize poses for safety.
|
|
std::fill(poses.buffer, poses.buffer + tbuf.tlen, 0.0f);
|
|
// Create a layout
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
const HRESULT hrCreate = pIDWriteFactory->CreateTextLayout(tbuf.buffer, tbuf.tlen, pfm->pTextFormat, 10000.0, 1000.0, &pTextLayout);
|
|
if (!SUCCEEDED(hrCreate) || !pTextLayout) {
|
|
return;
|
|
}
|
|
constexpr int clusters = stackBufferLength;
|
|
DWRITE_CLUSTER_METRICS clusterMetrics[clusters];
|
|
UINT32 count = 0;
|
|
const HRESULT hrGetCluster = pTextLayout->GetClusterMetrics(clusterMetrics, clusters, &count);
|
|
ReleaseUnknown(pTextLayout);
|
|
if (!SUCCEEDED(hrGetCluster)) {
|
|
return;
|
|
}
|
|
// A cluster may be more than one WCHAR, such as for "ffi" which is a ligature in the Candara font
|
|
XYPOSITION position = 0.0;
|
|
int ti=0;
|
|
for (unsigned int ci=0; ci<count; ci++) {
|
|
for (unsigned int inCluster=0; inCluster<clusterMetrics[ci].length; inCluster++) {
|
|
poses.buffer[ti++] = position + clusterMetrics[ci].width * (inCluster + 1) / clusterMetrics[ci].length;
|
|
}
|
|
position += clusterMetrics[ci].width;
|
|
}
|
|
PLATFORM_ASSERT(ti == tbuf.tlen);
|
|
if (codePageText == CpUtf8) {
|
|
// Map the widths given for UTF-16 characters back onto the UTF-8 input string
|
|
size_t i = 0;
|
|
for (int ui = 0; ui < tbuf.tlen; ui++) {
|
|
const unsigned char uch = text[i];
|
|
const unsigned int byteCount = UTF8BytesOfLead[uch];
|
|
if (byteCount == 4) { // Non-BMP
|
|
ui++;
|
|
}
|
|
for (unsigned int bytePos=0; (bytePos<byteCount) && (i<text.length()) && (ui<tbuf.tlen); bytePos++) {
|
|
positions[i++] = poses.buffer[ui];
|
|
}
|
|
}
|
|
const XYPOSITION lastPos = (i > 0) ? positions[i - 1] : 0.0;
|
|
while (i<text.length()) {
|
|
positions[i++] = lastPos;
|
|
}
|
|
} else if (!IsDBCSCodePage(codePageText)) {
|
|
|
|
// One char per position
|
|
PLATFORM_ASSERT(text.length() == static_cast<size_t>(tbuf.tlen));
|
|
for (int kk=0; kk<tbuf.tlen; kk++) {
|
|
positions[kk] = poses.buffer[kk];
|
|
}
|
|
|
|
} else {
|
|
|
|
// May be one or two bytes per position
|
|
int ui = 0;
|
|
for (size_t i=0; i<text.length() && ui<tbuf.tlen;) {
|
|
positions[i] = poses.buffer[ui];
|
|
if (DBCSIsLeadByte(codePageText, text[i])) {
|
|
positions[i+1] = poses.buffer[ui];
|
|
i += 2;
|
|
} else {
|
|
i++;
|
|
}
|
|
|
|
ui++;
|
|
}
|
|
}
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::WidthText(const Font *font_, std::string_view text) {
|
|
FLOAT width = 1.0;
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
if (pfm->pTextFormat) {
|
|
const TextWide tbuf(text, pfm->CodePageText(mode.codePage));
|
|
// Create a layout
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
const HRESULT hr = pIDWriteFactory->CreateTextLayout(tbuf.buffer, tbuf.tlen, pfm->pTextFormat, 1000.0, 1000.0, &pTextLayout);
|
|
if (SUCCEEDED(hr) && pTextLayout) {
|
|
DWRITE_TEXT_METRICS textMetrics;
|
|
if (SUCCEEDED(pTextLayout->GetMetrics(&textMetrics)))
|
|
width = textMetrics.widthIncludingTrailingWhitespace;
|
|
ReleaseUnknown(pTextLayout);
|
|
}
|
|
}
|
|
return width;
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextNoClipUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
if (pRenderTarget) {
|
|
FillRectangleAligned(rc, back);
|
|
D2DPenColourAlpha(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, CpUtf8, ETO_OPAQUE);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextClippedUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore, ColourRGBA back) {
|
|
if (pRenderTarget) {
|
|
FillRectangleAligned(rc, back);
|
|
D2DPenColourAlpha(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, CpUtf8, ETO_OPAQUE | ETO_CLIPPED);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextTransparentUTF8(PRectangle rc, const Font *font_, XYPOSITION ybase, std::string_view text,
|
|
ColourRGBA fore) {
|
|
// Avoid drawing spaces in transparent mode
|
|
for (const char ch : text) {
|
|
if (ch != ' ') {
|
|
if (pRenderTarget) {
|
|
D2DPenColourAlpha(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, CpUtf8, 0);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::MeasureWidthsUTF8(const Font *font_, std::string_view text, XYPOSITION *positions) {
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
if (!pfm->pTextFormat) {
|
|
return;
|
|
}
|
|
const TextWide tbuf(text, CpUtf8);
|
|
TextPositions poses(tbuf.tlen);
|
|
// Initialize poses for safety.
|
|
std::fill(poses.buffer, poses.buffer + tbuf.tlen, 0.0f);
|
|
// Create a layout
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
const HRESULT hrCreate = pIDWriteFactory->CreateTextLayout(tbuf.buffer, tbuf.tlen, pfm->pTextFormat, 10000.0, 1000.0, &pTextLayout);
|
|
if (!SUCCEEDED(hrCreate) || !pTextLayout) {
|
|
return;
|
|
}
|
|
constexpr int clusters = stackBufferLength;
|
|
DWRITE_CLUSTER_METRICS clusterMetrics[clusters];
|
|
UINT32 count = 0;
|
|
const HRESULT hrGetCluster = pTextLayout->GetClusterMetrics(clusterMetrics, clusters, &count);
|
|
ReleaseUnknown(pTextLayout);
|
|
if (!SUCCEEDED(hrGetCluster)) {
|
|
return;
|
|
}
|
|
// A cluster may be more than one WCHAR, such as for "ffi" which is a ligature in the Candara font
|
|
XYPOSITION position = 0.0;
|
|
int ti = 0;
|
|
for (unsigned int ci = 0; ci < count; ci++) {
|
|
for (unsigned int inCluster = 0; inCluster < clusterMetrics[ci].length; inCluster++) {
|
|
poses.buffer[ti++] = position + clusterMetrics[ci].width * (inCluster + 1) / clusterMetrics[ci].length;
|
|
}
|
|
position += clusterMetrics[ci].width;
|
|
}
|
|
PLATFORM_ASSERT(ti == tbuf.tlen);
|
|
// Map the widths given for UTF-16 characters back onto the UTF-8 input string
|
|
size_t i = 0;
|
|
for (int ui = 0; ui < tbuf.tlen; ui++) {
|
|
const unsigned char uch = text[i];
|
|
const unsigned int byteCount = UTF8BytesOfLead[uch];
|
|
if (byteCount == 4) { // Non-BMP
|
|
ui++;
|
|
PLATFORM_ASSERT(ui < ti);
|
|
}
|
|
for (unsigned int bytePos=0; (bytePos<byteCount) && (i<text.length()) && (ui < tbuf.tlen); bytePos++) {
|
|
positions[i++] = poses.buffer[ui];
|
|
}
|
|
}
|
|
const XYPOSITION lastPos = (i > 0) ? positions[i - 1] : 0.0;
|
|
while (i < text.length()) {
|
|
positions[i++] = lastPos;
|
|
}
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::WidthTextUTF8(const Font * font_, std::string_view text) {
|
|
FLOAT width = 1.0;
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
if (pfm->pTextFormat) {
|
|
const TextWide tbuf(text, CpUtf8);
|
|
// Create a layout
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
const HRESULT hr = pIDWriteFactory->CreateTextLayout(tbuf.buffer, tbuf.tlen, pfm->pTextFormat, 1000.0, 1000.0, &pTextLayout);
|
|
if (SUCCEEDED(hr)) {
|
|
DWRITE_TEXT_METRICS textMetrics;
|
|
if (SUCCEEDED(pTextLayout->GetMetrics(&textMetrics)))
|
|
width = textMetrics.widthIncludingTrailingWhitespace;
|
|
ReleaseUnknown(pTextLayout);
|
|
}
|
|
}
|
|
return width;
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::Ascent(const Font *font_) {
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
return std::ceil(pfm->yAscent);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::Descent(const Font *font_) {
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
return std::ceil(pfm->yDescent);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::InternalLeading(const Font *font_) {
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
return std::floor(pfm->yInternalLeading);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::Height(const Font *font_) {
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
return std::ceil(pfm->yAscent) + std::ceil(pfm->yDescent);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::AverageCharWidth(const Font *font_) {
|
|
FLOAT width = 1.0;
|
|
const FontDirectWrite *pfm = FontDirectWrite::Cast(font_);
|
|
if (pfm->pTextFormat) {
|
|
// Create a layout
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
static constexpr WCHAR wszAllAlpha[] = L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
|
|
const size_t lenAllAlpha = wcslen(wszAllAlpha);
|
|
const HRESULT hr = pIDWriteFactory->CreateTextLayout(wszAllAlpha, static_cast<UINT32>(lenAllAlpha),
|
|
pfm->pTextFormat, 1000.0, 1000.0, &pTextLayout);
|
|
if (SUCCEEDED(hr) && pTextLayout) {
|
|
DWRITE_TEXT_METRICS textMetrics;
|
|
if (SUCCEEDED(pTextLayout->GetMetrics(&textMetrics)))
|
|
width = textMetrics.width / lenAllAlpha;
|
|
ReleaseUnknown(pTextLayout);
|
|
}
|
|
}
|
|
return width;
|
|
}
|
|
|
|
void SurfaceD2D::SetClip(PRectangle rc) {
|
|
if (pRenderTarget) {
|
|
const D2D1_RECT_F rcClip = RectangleFromPRectangle(rc);
|
|
pRenderTarget->PushAxisAlignedClip(rcClip, D2D1_ANTIALIAS_MODE_ALIASED);
|
|
clipsActive++;
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::PopClip() {
|
|
if (pRenderTarget) {
|
|
PLATFORM_ASSERT(clipsActive > 0);
|
|
pRenderTarget->PopAxisAlignedClip();
|
|
clipsActive--;
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::FlushCachedState() {
|
|
}
|
|
|
|
void SurfaceD2D::FlushDrawing() {
|
|
if (pRenderTarget) {
|
|
pRenderTarget->Flush();
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::SetRenderingParams(std::shared_ptr<RenderingParams> renderingParams_) {
|
|
renderingParams = renderingParams_;
|
|
}
|
|
|
|
#endif
|
|
|
|
std::unique_ptr<Surface> Surface::Allocate(Technology technology) {
|
|
#if defined(USE_D2D)
|
|
if (technology == Technology::Default)
|
|
return std::make_unique<SurfaceGDI>();
|
|
else
|
|
return std::make_unique<SurfaceD2D>();
|
|
#else
|
|
return std::make_unique<SurfaceGDI>();
|
|
#endif
|
|
}
|
|
|
|
Window::~Window() noexcept {
|
|
}
|
|
|
|
void Window::Destroy() noexcept {
|
|
if (wid)
|
|
::DestroyWindow(HwndFromWindowID(wid));
|
|
wid = nullptr;
|
|
}
|
|
|
|
PRectangle Window::GetPosition() const {
|
|
RECT rc;
|
|
::GetWindowRect(HwndFromWindowID(wid), &rc);
|
|
return PRectangle::FromInts(rc.left, rc.top, rc.right, rc.bottom);
|
|
}
|
|
|
|
void Window::SetPosition(PRectangle rc) {
|
|
::SetWindowPos(HwndFromWindowID(wid),
|
|
0, static_cast<int>(rc.left), static_cast<int>(rc.top),
|
|
static_cast<int>(rc.Width()), static_cast<int>(rc.Height()), SWP_NOZORDER | SWP_NOACTIVATE);
|
|
}
|
|
|
|
namespace {
|
|
|
|
RECT RectFromMonitor(HMONITOR hMonitor) noexcept {
|
|
MONITORINFO mi = {};
|
|
mi.cbSize = sizeof(mi);
|
|
if (GetMonitorInfo(hMonitor, &mi)) {
|
|
return mi.rcWork;
|
|
}
|
|
RECT rc = {0, 0, 0, 0};
|
|
if (::SystemParametersInfoA(SPI_GETWORKAREA, 0, &rc, 0) == 0) {
|
|
rc.left = 0;
|
|
rc.top = 0;
|
|
rc.right = 0;
|
|
rc.bottom = 0;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
}
|
|
|
|
void Window::SetPositionRelative(PRectangle rc, const Window *relativeTo) {
|
|
const DWORD style = GetWindowStyle(HwndFromWindowID(wid));
|
|
if (style & WS_POPUP) {
|
|
POINT ptOther = {0, 0};
|
|
::ClientToScreen(HwndFromWindow(*relativeTo), &ptOther);
|
|
rc.Move(static_cast<XYPOSITION>(ptOther.x), static_cast<XYPOSITION>(ptOther.y));
|
|
|
|
const RECT rcMonitor = RectFromPRectangle(rc);
|
|
|
|
HMONITOR hMonitor = MonitorFromRect(&rcMonitor, MONITOR_DEFAULTTONEAREST);
|
|
// If hMonitor is NULL, that's just the main screen anyways.
|
|
const RECT rcWork = RectFromMonitor(hMonitor);
|
|
|
|
if (rcWork.left < rcWork.right) {
|
|
// Now clamp our desired rectangle to fit inside the work area
|
|
// This way, the menu will fit wholly on one screen. An improvement even
|
|
// if you don't have a second monitor on the left... Menu's appears half on
|
|
// one screen and half on the other are just U.G.L.Y.!
|
|
if (rc.right > rcWork.right)
|
|
rc.Move(rcWork.right - rc.right, 0);
|
|
if (rc.bottom > rcWork.bottom)
|
|
rc.Move(0, rcWork.bottom - rc.bottom);
|
|
if (rc.left < rcWork.left)
|
|
rc.Move(rcWork.left - rc.left, 0);
|
|
if (rc.top < rcWork.top)
|
|
rc.Move(0, rcWork.top - rc.top);
|
|
}
|
|
}
|
|
SetPosition(rc);
|
|
}
|
|
|
|
PRectangle Window::GetClientPosition() const {
|
|
RECT rc={0,0,0,0};
|
|
if (wid)
|
|
::GetClientRect(HwndFromWindowID(wid), &rc);
|
|
return PRectangle::FromInts(rc.left, rc.top, rc.right, rc.bottom);
|
|
}
|
|
|
|
void Window::Show(bool show) {
|
|
if (show)
|
|
::ShowWindow(HwndFromWindowID(wid), SW_SHOWNOACTIVATE);
|
|
else
|
|
::ShowWindow(HwndFromWindowID(wid), SW_HIDE);
|
|
}
|
|
|
|
void Window::InvalidateAll() {
|
|
::InvalidateRect(HwndFromWindowID(wid), nullptr, FALSE);
|
|
}
|
|
|
|
void Window::InvalidateRectangle(PRectangle rc) {
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::InvalidateRect(HwndFromWindowID(wid), &rcw, FALSE);
|
|
}
|
|
|
|
namespace {
|
|
|
|
void FlipBitmap(HBITMAP bitmap, int width, int height) noexcept {
|
|
HDC hdc = ::CreateCompatibleDC({});
|
|
if (hdc) {
|
|
HBITMAP prevBmp = SelectBitmap(hdc, bitmap);
|
|
::StretchBlt(hdc, width - 1, 0, -width, height, hdc, 0, 0, width, height, SRCCOPY);
|
|
SelectBitmap(hdc, prevBmp);
|
|
::DeleteDC(hdc);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
HCURSOR LoadReverseArrowCursor(UINT dpi) noexcept {
|
|
HCURSOR reverseArrowCursor {};
|
|
|
|
bool created = false;
|
|
HCURSOR cursor = ::LoadCursor({}, IDC_ARROW);
|
|
|
|
if (dpi != uSystemDPI) {
|
|
const int width = SystemMetricsForDpi(SM_CXCURSOR, dpi);
|
|
const int height = SystemMetricsForDpi(SM_CYCURSOR, dpi);
|
|
HCURSOR copy = static_cast<HCURSOR>(::CopyImage(cursor, IMAGE_CURSOR, width, height, LR_COPYFROMRESOURCE | LR_COPYRETURNORG));
|
|
if (copy) {
|
|
created = copy != cursor;
|
|
cursor = copy;
|
|
}
|
|
}
|
|
|
|
ICONINFO info;
|
|
if (::GetIconInfo(cursor, &info)) {
|
|
BITMAP bmp {};
|
|
if (::GetObject(info.hbmMask, sizeof(bmp), &bmp)) {
|
|
FlipBitmap(info.hbmMask, bmp.bmWidth, bmp.bmHeight);
|
|
if (info.hbmColor)
|
|
FlipBitmap(info.hbmColor, bmp.bmWidth, bmp.bmHeight);
|
|
info.xHotspot = bmp.bmWidth - 1 - info.xHotspot;
|
|
|
|
reverseArrowCursor = ::CreateIconIndirect(&info);
|
|
}
|
|
|
|
::DeleteObject(info.hbmMask);
|
|
if (info.hbmColor)
|
|
::DeleteObject(info.hbmColor);
|
|
}
|
|
|
|
if (created) {
|
|
::DestroyCursor(cursor);
|
|
}
|
|
return reverseArrowCursor;
|
|
}
|
|
|
|
void Window::SetCursor(Cursor curs) {
|
|
switch (curs) {
|
|
case Cursor::text:
|
|
::SetCursor(::LoadCursor(NULL,IDC_IBEAM));
|
|
break;
|
|
case Cursor::up:
|
|
::SetCursor(::LoadCursor(NULL,IDC_UPARROW));
|
|
break;
|
|
case Cursor::wait:
|
|
::SetCursor(::LoadCursor(NULL,IDC_WAIT));
|
|
break;
|
|
case Cursor::horizontal:
|
|
::SetCursor(::LoadCursor(NULL,IDC_SIZEWE));
|
|
break;
|
|
case Cursor::vertical:
|
|
::SetCursor(::LoadCursor(NULL,IDC_SIZENS));
|
|
break;
|
|
case Cursor::hand:
|
|
::SetCursor(::LoadCursor(NULL,IDC_HAND));
|
|
break;
|
|
case Cursor::reverseArrow:
|
|
case Cursor::arrow:
|
|
case Cursor::invalid: // Should not occur, but just in case.
|
|
::SetCursor(::LoadCursor(NULL,IDC_ARROW));
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Returns rectangle of monitor pt is on, both rect and pt are in Window's
|
|
coordinates */
|
|
PRectangle Window::GetMonitorRect(Point pt) {
|
|
const PRectangle rcPosition = GetPosition();
|
|
POINT ptDesktop = {static_cast<LONG>(pt.x + rcPosition.left),
|
|
static_cast<LONG>(pt.y + rcPosition.top)};
|
|
HMONITOR hMonitor = MonitorFromPoint(ptDesktop, MONITOR_DEFAULTTONEAREST);
|
|
|
|
const RECT rcWork = RectFromMonitor(hMonitor);
|
|
if (rcWork.left < rcWork.right) {
|
|
PRectangle rcMonitor(
|
|
rcWork.left - rcPosition.left,
|
|
rcWork.top - rcPosition.top,
|
|
rcWork.right - rcPosition.left,
|
|
rcWork.bottom - rcPosition.top);
|
|
return rcMonitor;
|
|
} else {
|
|
return PRectangle();
|
|
}
|
|
}
|
|
|
|
struct ListItemData {
|
|
const char *text;
|
|
int pixId;
|
|
};
|
|
|
|
class LineToItem {
|
|
std::vector<char> words;
|
|
|
|
std::vector<ListItemData> data;
|
|
|
|
public:
|
|
void Clear() noexcept {
|
|
words.clear();
|
|
data.clear();
|
|
}
|
|
|
|
ListItemData Get(size_t index) const noexcept {
|
|
if (index < data.size()) {
|
|
return data[index];
|
|
} else {
|
|
ListItemData missing = {"", -1};
|
|
return missing;
|
|
}
|
|
}
|
|
int Count() const noexcept {
|
|
return static_cast<int>(data.size());
|
|
}
|
|
|
|
void AllocItem(const char *text, int pixId) {
|
|
ListItemData lid = { text, pixId };
|
|
data.push_back(lid);
|
|
}
|
|
|
|
char *SetWords(const char *s) {
|
|
words = std::vector<char>(s, s+strlen(s)+1);
|
|
return &words[0];
|
|
}
|
|
};
|
|
|
|
const TCHAR ListBoxX_ClassName[] = TEXT("ListBoxX");
|
|
|
|
ListBox::ListBox() noexcept {
|
|
}
|
|
|
|
ListBox::~ListBox() noexcept {
|
|
}
|
|
|
|
class ListBoxX : public ListBox {
|
|
int lineHeight;
|
|
HFONT fontCopy;
|
|
Technology technology;
|
|
RGBAImageSet images;
|
|
LineToItem lti;
|
|
HWND lb;
|
|
bool unicodeMode;
|
|
int desiredVisibleRows;
|
|
unsigned int maxItemCharacters;
|
|
unsigned int aveCharWidth;
|
|
Window *parent;
|
|
int ctrlID;
|
|
UINT dpi;
|
|
IListBoxDelegate *delegate;
|
|
const char *widestItem;
|
|
unsigned int maxCharWidth;
|
|
WPARAM resizeHit;
|
|
PRectangle rcPreSize;
|
|
Point dragOffset;
|
|
Point location; // Caret location at which the list is opened
|
|
int wheelDelta; // mouse wheel residue
|
|
ListOptions options;
|
|
DWORD frameStyle = WS_THICKFRAME;
|
|
|
|
HWND GetHWND() const noexcept;
|
|
void AppendListItem(const char *text, const char *numword);
|
|
void AdjustWindowRect(PRectangle *rc, UINT dpiAdjust) const noexcept;
|
|
int ItemHeight() const;
|
|
int MinClientWidth() const noexcept;
|
|
int TextOffset() const;
|
|
POINT GetClientExtent() const noexcept;
|
|
POINT MinTrackSize() const;
|
|
POINT MaxTrackSize() const;
|
|
void SetRedraw(bool on) noexcept;
|
|
void OnDoubleClick();
|
|
void OnSelChange();
|
|
void ResizeToCursor();
|
|
void StartResize(WPARAM);
|
|
LRESULT NcHitTest(WPARAM, LPARAM) const;
|
|
void CentreItem(int n);
|
|
void Paint(HDC);
|
|
static LRESULT PASCAL ControlWndProc(HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam);
|
|
|
|
static constexpr Point ItemInset {0, 0}; // Padding around whole item
|
|
static constexpr Point TextInset {2, 0}; // Padding around text
|
|
static constexpr Point ImageInset {1, 0}; // Padding around image
|
|
|
|
public:
|
|
ListBoxX() : lineHeight(10), fontCopy{}, technology(Technology::Default), lb{}, unicodeMode(false),
|
|
desiredVisibleRows(9), maxItemCharacters(0), aveCharWidth(8),
|
|
parent(nullptr), ctrlID(0), dpi(USER_DEFAULT_SCREEN_DPI),
|
|
delegate(nullptr),
|
|
widestItem(nullptr), maxCharWidth(1), resizeHit(0), wheelDelta(0) {
|
|
}
|
|
ListBoxX(const ListBoxX &) = delete;
|
|
ListBoxX(ListBoxX &&) = delete;
|
|
ListBoxX &operator=(const ListBoxX &) = delete;
|
|
ListBoxX &operator=(ListBoxX &&) = delete;
|
|
~ListBoxX() noexcept override {
|
|
if (fontCopy) {
|
|
::DeleteObject(fontCopy);
|
|
fontCopy = 0;
|
|
}
|
|
}
|
|
void SetFont(const Font *font) override;
|
|
void Create(Window &parent_, int ctrlID_, Point location_, int lineHeight_, bool unicodeMode_, Technology technology_) override;
|
|
void SetAverageCharWidth(int width) override;
|
|
void SetVisibleRows(int rows) override;
|
|
int GetVisibleRows() const override;
|
|
PRectangle GetDesiredRect() override;
|
|
int CaretFromEdge() override;
|
|
void Clear() noexcept override;
|
|
void Append(char *s, int type = -1) override;
|
|
int Length() override;
|
|
void Select(int n) override;
|
|
int GetSelection() override;
|
|
int Find(const char *prefix) override;
|
|
std::string GetValue(int n) override;
|
|
void RegisterImage(int type, const char *xpm_data) override;
|
|
void RegisterRGBAImage(int type, int width, int height, const unsigned char *pixelsImage) override;
|
|
void ClearRegisteredImages() override;
|
|
void SetDelegate(IListBoxDelegate *lbDelegate) override;
|
|
void SetList(const char *list, char separator, char typesep) override;
|
|
void SetOptions(ListOptions options_) override;
|
|
void Draw(DRAWITEMSTRUCT *pDrawItem);
|
|
LRESULT WndProc(HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam);
|
|
static LRESULT PASCAL StaticWndProc(HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam);
|
|
};
|
|
|
|
std::unique_ptr<ListBox> ListBox::Allocate() {
|
|
return std::make_unique<ListBoxX>();
|
|
}
|
|
|
|
void ListBoxX::Create(Window &parent_, int ctrlID_, Point location_, int lineHeight_, bool unicodeMode_, Technology technology_) {
|
|
parent = &parent_;
|
|
ctrlID = ctrlID_;
|
|
location = location_;
|
|
lineHeight = lineHeight_;
|
|
unicodeMode = unicodeMode_;
|
|
technology = technology_;
|
|
HWND hwndParent = HwndFromWindow(*parent);
|
|
HINSTANCE hinstanceParent = GetWindowInstance(hwndParent);
|
|
// Window created as popup so not clipped within parent client area
|
|
wid = ::CreateWindowEx(
|
|
WS_EX_WINDOWEDGE, ListBoxX_ClassName, TEXT(""),
|
|
WS_POPUP | frameStyle,
|
|
100,100, 150,80, hwndParent,
|
|
NULL,
|
|
hinstanceParent,
|
|
this);
|
|
|
|
dpi = DpiForWindow(hwndParent);
|
|
POINT locationw = POINTFromPoint(location);
|
|
::MapWindowPoints(hwndParent, NULL, &locationw, 1);
|
|
location = PointFromPOINT(locationw);
|
|
}
|
|
|
|
void ListBoxX::SetFont(const Font *font) {
|
|
const FontWin *pfm = dynamic_cast<const FontWin *>(font);
|
|
if (pfm) {
|
|
if (fontCopy) {
|
|
::DeleteObject(fontCopy);
|
|
fontCopy = 0;
|
|
}
|
|
fontCopy = pfm->HFont();
|
|
SetWindowFont(lb, fontCopy, 0);
|
|
}
|
|
}
|
|
|
|
void ListBoxX::SetAverageCharWidth(int width) {
|
|
aveCharWidth = width;
|
|
}
|
|
|
|
void ListBoxX::SetVisibleRows(int rows) {
|
|
desiredVisibleRows = rows;
|
|
}
|
|
|
|
int ListBoxX::GetVisibleRows() const {
|
|
return desiredVisibleRows;
|
|
}
|
|
|
|
HWND ListBoxX::GetHWND() const noexcept {
|
|
return HwndFromWindowID(GetID());
|
|
}
|
|
|
|
PRectangle ListBoxX::GetDesiredRect() {
|
|
PRectangle rcDesired = GetPosition();
|
|
|
|
int rows = Length();
|
|
if ((rows == 0) || (rows > desiredVisibleRows))
|
|
rows = desiredVisibleRows;
|
|
rcDesired.bottom = rcDesired.top + ItemHeight() * rows;
|
|
|
|
int width = MinClientWidth();
|
|
HDC hdc = ::GetDC(lb);
|
|
HFONT oldFont = SelectFont(hdc, fontCopy);
|
|
SIZE textSize = {0, 0};
|
|
int len = 0;
|
|
if (widestItem) {
|
|
len = static_cast<int>(strlen(widestItem));
|
|
if (unicodeMode) {
|
|
const TextWide tbuf(widestItem, CpUtf8);
|
|
::GetTextExtentPoint32W(hdc, tbuf.buffer, tbuf.tlen, &textSize);
|
|
} else {
|
|
::GetTextExtentPoint32A(hdc, widestItem, len, &textSize);
|
|
}
|
|
}
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
maxCharWidth = tm.tmMaxCharWidth;
|
|
SelectFont(hdc, oldFont);
|
|
::ReleaseDC(lb, hdc);
|
|
|
|
const int widthDesired = std::max(textSize.cx, (len + 1) * tm.tmAveCharWidth);
|
|
if (width < widthDesired)
|
|
width = widthDesired;
|
|
|
|
rcDesired.right = rcDesired.left + TextOffset() + width + (TextInset.x * 2);
|
|
if (Length() > rows)
|
|
rcDesired.right += SystemMetricsForDpi(SM_CXVSCROLL, dpi);
|
|
|
|
AdjustWindowRect(&rcDesired, dpi);
|
|
return rcDesired;
|
|
}
|
|
|
|
int ListBoxX::TextOffset() const {
|
|
const int pixWidth = images.GetWidth();
|
|
return static_cast<int>(pixWidth == 0 ? ItemInset.x : ItemInset.x + pixWidth + (ImageInset.x * 2));
|
|
}
|
|
|
|
int ListBoxX::CaretFromEdge() {
|
|
PRectangle rc;
|
|
AdjustWindowRect(&rc, dpi);
|
|
return TextOffset() + static_cast<int>(TextInset.x + (0 - rc.left) - 1);
|
|
}
|
|
|
|
void ListBoxX::Clear() noexcept {
|
|
ListBox_ResetContent(lb);
|
|
maxItemCharacters = 0;
|
|
widestItem = nullptr;
|
|
lti.Clear();
|
|
}
|
|
|
|
void ListBoxX::Append(char *, int) {
|
|
// This method is no longer called in Scintilla
|
|
PLATFORM_ASSERT(false);
|
|
}
|
|
|
|
int ListBoxX::Length() {
|
|
return lti.Count();
|
|
}
|
|
|
|
void ListBoxX::Select(int n) {
|
|
// We are going to scroll to centre on the new selection and then select it, so disable
|
|
// redraw to avoid flicker caused by a painting new selection twice in unselected and then
|
|
// selected states
|
|
SetRedraw(false);
|
|
CentreItem(n);
|
|
ListBox_SetCurSel(lb, n);
|
|
OnSelChange();
|
|
SetRedraw(true);
|
|
}
|
|
|
|
int ListBoxX::GetSelection() {
|
|
return ListBox_GetCurSel(lb);
|
|
}
|
|
|
|
// This is not actually called at present
|
|
int ListBoxX::Find(const char *) {
|
|
return LB_ERR;
|
|
}
|
|
|
|
std::string ListBoxX::GetValue(int n) {
|
|
const ListItemData item = lti.Get(n);
|
|
return item.text;
|
|
}
|
|
|
|
void ListBoxX::RegisterImage(int type, const char *xpm_data) {
|
|
XPM xpmImage(xpm_data);
|
|
images.AddImage(type, std::make_unique<RGBAImage>(xpmImage));
|
|
}
|
|
|
|
void ListBoxX::RegisterRGBAImage(int type, int width, int height, const unsigned char *pixelsImage) {
|
|
images.AddImage(type, std::make_unique<RGBAImage>(width, height, 1.0f, pixelsImage));
|
|
}
|
|
|
|
void ListBoxX::ClearRegisteredImages() {
|
|
images.Clear();
|
|
}
|
|
|
|
namespace {
|
|
|
|
int ColourOfElement(std::optional<ColourRGBA> colour, int nIndex) {
|
|
if (colour.has_value()) {
|
|
return colour.value().OpaqueRGB();
|
|
} else {
|
|
return ::GetSysColor(nIndex);
|
|
}
|
|
}
|
|
|
|
void FillRectColour(HDC hdc, const RECT *lprc, int colour) noexcept {
|
|
const HBRUSH brush = ::CreateSolidBrush(colour);
|
|
::FillRect(hdc, lprc, brush);
|
|
::DeleteObject(brush);
|
|
}
|
|
|
|
}
|
|
|
|
void ListBoxX::Draw(DRAWITEMSTRUCT *pDrawItem) {
|
|
if ((pDrawItem->itemAction == ODA_SELECT) || (pDrawItem->itemAction == ODA_DRAWENTIRE)) {
|
|
RECT rcBox = pDrawItem->rcItem;
|
|
rcBox.left += TextOffset();
|
|
if (pDrawItem->itemState & ODS_SELECTED) {
|
|
RECT rcImage = pDrawItem->rcItem;
|
|
rcImage.right = rcBox.left;
|
|
// The image is not highlighted
|
|
FillRectColour(pDrawItem->hDC, &rcImage, ColourOfElement(options.back, COLOR_WINDOW));
|
|
FillRectColour(pDrawItem->hDC, &rcBox, ColourOfElement(options.backSelected, COLOR_HIGHLIGHT));
|
|
::SetBkColor(pDrawItem->hDC, ColourOfElement(options.backSelected, COLOR_HIGHLIGHT));
|
|
::SetTextColor(pDrawItem->hDC, ColourOfElement(options.foreSelected, COLOR_HIGHLIGHTTEXT));
|
|
} else {
|
|
FillRectColour(pDrawItem->hDC, &pDrawItem->rcItem, ColourOfElement(options.back, COLOR_WINDOW));
|
|
::SetBkColor(pDrawItem->hDC, ColourOfElement(options.back, COLOR_WINDOW));
|
|
::SetTextColor(pDrawItem->hDC, ColourOfElement(options.fore, COLOR_WINDOWTEXT));
|
|
}
|
|
|
|
const ListItemData item = lti.Get(pDrawItem->itemID);
|
|
const int pixId = item.pixId;
|
|
const char *text = item.text;
|
|
const int len = static_cast<int>(strlen(text));
|
|
|
|
RECT rcText = rcBox;
|
|
::InsetRect(&rcText, static_cast<int>(TextInset.x), static_cast<int>(TextInset.y));
|
|
|
|
if (unicodeMode) {
|
|
const TextWide tbuf(text, CpUtf8);
|
|
::DrawTextW(pDrawItem->hDC, tbuf.buffer, tbuf.tlen, &rcText, DT_NOPREFIX|DT_END_ELLIPSIS|DT_SINGLELINE|DT_NOCLIP);
|
|
} else {
|
|
::DrawTextA(pDrawItem->hDC, text, len, &rcText, DT_NOPREFIX|DT_END_ELLIPSIS|DT_SINGLELINE|DT_NOCLIP);
|
|
}
|
|
|
|
// Draw the image, if any
|
|
const RGBAImage *pimage = images.Get(pixId);
|
|
if (pimage) {
|
|
std::unique_ptr<Surface> surfaceItem(Surface::Allocate(technology));
|
|
if (technology == Technology::Default) {
|
|
surfaceItem->Init(pDrawItem->hDC, pDrawItem->hwndItem);
|
|
const long left = pDrawItem->rcItem.left + static_cast<int>(ItemInset.x + ImageInset.x);
|
|
const PRectangle rcImage = PRectangle::FromInts(left, pDrawItem->rcItem.top,
|
|
left + images.GetWidth(), pDrawItem->rcItem.bottom);
|
|
surfaceItem->DrawRGBAImage(rcImage,
|
|
pimage->GetWidth(), pimage->GetHeight(), pimage->Pixels());
|
|
::SetTextAlign(pDrawItem->hDC, TA_TOP);
|
|
} else {
|
|
#if defined(USE_D2D)
|
|
const D2D1_RENDER_TARGET_PROPERTIES props = D2D1::RenderTargetProperties(
|
|
D2D1_RENDER_TARGET_TYPE_DEFAULT,
|
|
D2D1::PixelFormat(
|
|
DXGI_FORMAT_B8G8R8A8_UNORM,
|
|
D2D1_ALPHA_MODE_IGNORE),
|
|
0,
|
|
0,
|
|
D2D1_RENDER_TARGET_USAGE_NONE,
|
|
D2D1_FEATURE_LEVEL_DEFAULT
|
|
);
|
|
ID2D1DCRenderTarget *pDCRT = nullptr;
|
|
HRESULT hr = pD2DFactory->CreateDCRenderTarget(&props, &pDCRT);
|
|
if (SUCCEEDED(hr) && pDCRT) {
|
|
RECT rcWindow;
|
|
GetClientRect(pDrawItem->hwndItem, &rcWindow);
|
|
hr = pDCRT->BindDC(pDrawItem->hDC, &rcWindow);
|
|
if (SUCCEEDED(hr)) {
|
|
surfaceItem->Init(pDCRT, pDrawItem->hwndItem);
|
|
pDCRT->BeginDraw();
|
|
const long left = pDrawItem->rcItem.left + static_cast<long>(ItemInset.x + ImageInset.x);
|
|
const PRectangle rcImage = PRectangle::FromInts(left, pDrawItem->rcItem.top,
|
|
left + images.GetWidth(), pDrawItem->rcItem.bottom);
|
|
surfaceItem->DrawRGBAImage(rcImage,
|
|
pimage->GetWidth(), pimage->GetHeight(), pimage->Pixels());
|
|
pDCRT->EndDraw();
|
|
ReleaseUnknown(pDCRT);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ListBoxX::AppendListItem(const char *text, const char *numword) {
|
|
int pixId = -1;
|
|
if (numword) {
|
|
pixId = 0;
|
|
char ch;
|
|
while ((ch = *++numword) != '\0') {
|
|
pixId = 10 * pixId + (ch - '0');
|
|
}
|
|
}
|
|
|
|
lti.AllocItem(text, pixId);
|
|
const unsigned int len = static_cast<unsigned int>(strlen(text));
|
|
if (maxItemCharacters < len) {
|
|
maxItemCharacters = len;
|
|
widestItem = text;
|
|
}
|
|
}
|
|
|
|
void ListBoxX::SetDelegate(IListBoxDelegate *lbDelegate) {
|
|
delegate = lbDelegate;
|
|
}
|
|
|
|
void ListBoxX::SetList(const char *list, char separator, char typesep) {
|
|
// Turn off redraw while populating the list - this has a significant effect, even if
|
|
// the listbox is not visible.
|
|
SetRedraw(false);
|
|
Clear();
|
|
const size_t size = strlen(list);
|
|
char *words = lti.SetWords(list);
|
|
char *startword = words;
|
|
char *numword = nullptr;
|
|
for (size_t i=0; i < size; i++) {
|
|
if (words[i] == separator) {
|
|
words[i] = '\0';
|
|
if (numword)
|
|
*numword = '\0';
|
|
AppendListItem(startword, numword);
|
|
startword = words + i + 1;
|
|
numword = nullptr;
|
|
} else if (words[i] == typesep) {
|
|
numword = words + i;
|
|
}
|
|
}
|
|
if (startword) {
|
|
if (numword)
|
|
*numword = '\0';
|
|
AppendListItem(startword, numword);
|
|
}
|
|
|
|
// Finally populate the listbox itself with the correct number of items
|
|
const int count = lti.Count();
|
|
::SendMessage(lb, LB_INITSTORAGE, count, 0);
|
|
for (intptr_t j=0; j<count; j++) {
|
|
ListBox_AddItemData(lb, j+1);
|
|
}
|
|
SetRedraw(true);
|
|
}
|
|
|
|
void ListBoxX::SetOptions(ListOptions options_) {
|
|
options = options_;
|
|
frameStyle = FlagSet(options.options, AutoCompleteOption::FixedSize) ? WS_BORDER : WS_THICKFRAME;
|
|
}
|
|
|
|
void ListBoxX::AdjustWindowRect(PRectangle *rc, UINT dpiAdjust) const noexcept {
|
|
RECT rcw = RectFromPRectangle(*rc);
|
|
if (fnAdjustWindowRectExForDpi) {
|
|
fnAdjustWindowRectExForDpi(&rcw, frameStyle, false, WS_EX_WINDOWEDGE, dpiAdjust);
|
|
} else {
|
|
::AdjustWindowRectEx(&rcw, frameStyle, false, WS_EX_WINDOWEDGE);
|
|
}
|
|
*rc = PRectangle::FromInts(rcw.left, rcw.top, rcw.right, rcw.bottom);
|
|
}
|
|
|
|
int ListBoxX::ItemHeight() const {
|
|
int itemHeight = lineHeight + (static_cast<int>(TextInset.y) * 2);
|
|
const int pixHeight = images.GetHeight() + (static_cast<int>(ImageInset.y) * 2);
|
|
if (itemHeight < pixHeight) {
|
|
itemHeight = pixHeight;
|
|
}
|
|
return itemHeight;
|
|
}
|
|
|
|
int ListBoxX::MinClientWidth() const noexcept {
|
|
return 12 * (aveCharWidth+aveCharWidth/3);
|
|
}
|
|
|
|
POINT ListBoxX::MinTrackSize() const {
|
|
PRectangle rc = PRectangle::FromInts(0, 0, MinClientWidth(), ItemHeight());
|
|
AdjustWindowRect(&rc, dpi);
|
|
POINT ret = {static_cast<LONG>(rc.Width()), static_cast<LONG>(rc.Height())};
|
|
return ret;
|
|
}
|
|
|
|
POINT ListBoxX::MaxTrackSize() const {
|
|
PRectangle rc = PRectangle::FromInts(0, 0,
|
|
std::max(static_cast<unsigned int>(MinClientWidth()),
|
|
maxCharWidth * maxItemCharacters + static_cast<int>(TextInset.x) * 2 +
|
|
TextOffset() + SystemMetricsForDpi(SM_CXVSCROLL, dpi)),
|
|
ItemHeight() * lti.Count());
|
|
AdjustWindowRect(&rc, dpi);
|
|
POINT ret = {static_cast<LONG>(rc.Width()), static_cast<LONG>(rc.Height())};
|
|
return ret;
|
|
}
|
|
|
|
void ListBoxX::SetRedraw(bool on) noexcept {
|
|
::SendMessage(lb, WM_SETREDRAW, on, 0);
|
|
if (on)
|
|
::InvalidateRect(lb, nullptr, TRUE);
|
|
}
|
|
|
|
void ListBoxX::ResizeToCursor() {
|
|
PRectangle rc = GetPosition();
|
|
POINT ptw;
|
|
::GetCursorPos(&ptw);
|
|
const Point pt = PointFromPOINT(ptw) + dragOffset;
|
|
|
|
switch (resizeHit) {
|
|
case HTLEFT:
|
|
rc.left = pt.x;
|
|
break;
|
|
case HTRIGHT:
|
|
rc.right = pt.x;
|
|
break;
|
|
case HTTOP:
|
|
rc.top = pt.y;
|
|
break;
|
|
case HTTOPLEFT:
|
|
rc.top = pt.y;
|
|
rc.left = pt.x;
|
|
break;
|
|
case HTTOPRIGHT:
|
|
rc.top = pt.y;
|
|
rc.right = pt.x;
|
|
break;
|
|
case HTBOTTOM:
|
|
rc.bottom = pt.y;
|
|
break;
|
|
case HTBOTTOMLEFT:
|
|
rc.bottom = pt.y;
|
|
rc.left = pt.x;
|
|
break;
|
|
case HTBOTTOMRIGHT:
|
|
rc.bottom = pt.y;
|
|
rc.right = pt.x;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
const POINT ptMin = MinTrackSize();
|
|
const POINT ptMax = MaxTrackSize();
|
|
// We don't allow the left edge to move at present, but just in case
|
|
rc.left = std::clamp(rc.left, rcPreSize.right - ptMax.x, rcPreSize.right - ptMin.x);
|
|
rc.top = std::clamp(rc.top, rcPreSize.bottom - ptMax.y, rcPreSize.bottom - ptMin.y);
|
|
rc.right = std::clamp(rc.right, rcPreSize.left + ptMin.x, rcPreSize.left + ptMax.x);
|
|
rc.bottom = std::clamp(rc.bottom, rcPreSize.top + ptMin.y, rcPreSize.top + ptMax.y);
|
|
|
|
SetPosition(rc);
|
|
}
|
|
|
|
void ListBoxX::StartResize(WPARAM hitCode) {
|
|
rcPreSize = GetPosition();
|
|
POINT cursorPos;
|
|
::GetCursorPos(&cursorPos);
|
|
|
|
switch (hitCode) {
|
|
case HTRIGHT:
|
|
case HTBOTTOM:
|
|
case HTBOTTOMRIGHT:
|
|
dragOffset.x = rcPreSize.right - cursorPos.x;
|
|
dragOffset.y = rcPreSize.bottom - cursorPos.y;
|
|
break;
|
|
|
|
case HTTOPRIGHT:
|
|
dragOffset.x = rcPreSize.right - cursorPos.x;
|
|
dragOffset.y = rcPreSize.top - cursorPos.y;
|
|
break;
|
|
|
|
// Note that the current hit test code prevents the left edge cases ever firing
|
|
// as we don't want the left edge to be movable
|
|
case HTLEFT:
|
|
case HTTOP:
|
|
case HTTOPLEFT:
|
|
dragOffset.x = rcPreSize.left - cursorPos.x;
|
|
dragOffset.y = rcPreSize.top - cursorPos.y;
|
|
break;
|
|
case HTBOTTOMLEFT:
|
|
dragOffset.x = rcPreSize.left - cursorPos.x;
|
|
dragOffset.y = rcPreSize.bottom - cursorPos.y;
|
|
break;
|
|
|
|
default:
|
|
return;
|
|
}
|
|
|
|
::SetCapture(GetHWND());
|
|
resizeHit = hitCode;
|
|
}
|
|
|
|
LRESULT ListBoxX::NcHitTest(WPARAM wParam, LPARAM lParam) const {
|
|
const PRectangle rc = GetPosition();
|
|
|
|
LRESULT hit = ::DefWindowProc(GetHWND(), WM_NCHITTEST, wParam, lParam);
|
|
// There is an apparent bug in the DefWindowProc hit test code whereby it will
|
|
// return HTTOPXXX if the window in question is shorter than the default
|
|
// window caption height + frame, even if one is hovering over the bottom edge of
|
|
// the frame, so workaround that here
|
|
if (hit >= HTTOP && hit <= HTTOPRIGHT) {
|
|
const int minHeight = SystemMetricsForDpi(SM_CYMINTRACK, dpi);
|
|
const int yPos = GET_Y_LPARAM(lParam);
|
|
if ((rc.Height() < minHeight) && (yPos > ((rc.top + rc.bottom)/2))) {
|
|
hit += HTBOTTOM - HTTOP;
|
|
}
|
|
}
|
|
|
|
// Never permit resizing that moves the left edge. Allow movement of top or bottom edge
|
|
// depending on whether the list is above or below the caret
|
|
switch (hit) {
|
|
case HTLEFT:
|
|
case HTTOPLEFT:
|
|
case HTBOTTOMLEFT:
|
|
hit = HTERROR;
|
|
break;
|
|
|
|
case HTTOP:
|
|
case HTTOPRIGHT: {
|
|
// Valid only if caret below list
|
|
if (location.y < rc.top)
|
|
hit = HTERROR;
|
|
}
|
|
break;
|
|
|
|
case HTBOTTOM:
|
|
case HTBOTTOMRIGHT: {
|
|
// Valid only if caret above list
|
|
if (rc.bottom <= location.y)
|
|
hit = HTERROR;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return hit;
|
|
}
|
|
|
|
void ListBoxX::OnDoubleClick() {
|
|
if (delegate) {
|
|
ListBoxEvent event(ListBoxEvent::EventType::doubleClick);
|
|
delegate->ListNotify(&event);
|
|
}
|
|
}
|
|
|
|
void ListBoxX::OnSelChange() {
|
|
if (delegate) {
|
|
ListBoxEvent event(ListBoxEvent::EventType::selectionChange);
|
|
delegate->ListNotify(&event);
|
|
}
|
|
}
|
|
|
|
POINT ListBoxX::GetClientExtent() const noexcept {
|
|
RECT rc;
|
|
::GetWindowRect(HwndFromWindowID(wid), &rc);
|
|
POINT ret { rc.right - rc.left, rc.bottom - rc.top };
|
|
return ret;
|
|
}
|
|
|
|
void ListBoxX::CentreItem(int n) {
|
|
// If below mid point, scroll up to centre, but with more items below if uneven
|
|
if (n >= 0) {
|
|
const POINT extent = GetClientExtent();
|
|
const int visible = extent.y/ItemHeight();
|
|
if (visible < Length()) {
|
|
const int top = ListBox_GetTopIndex(lb);
|
|
const int half = (visible - 1) / 2;
|
|
if (n > (top + half))
|
|
ListBox_SetTopIndex(lb, n - half);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Performs a double-buffered paint operation to avoid flicker
|
|
void ListBoxX::Paint(HDC hDC) {
|
|
const POINT extent = GetClientExtent();
|
|
HBITMAP hBitmap = ::CreateCompatibleBitmap(hDC, extent.x, extent.y);
|
|
HDC bitmapDC = ::CreateCompatibleDC(hDC);
|
|
HBITMAP hBitmapOld = SelectBitmap(bitmapDC, hBitmap);
|
|
// The list background is mainly erased during painting, but can be a small
|
|
// unpainted area when at the end of a non-integrally sized list with a
|
|
// vertical scroll bar
|
|
const RECT rc = { 0, 0, extent.x, extent.y };
|
|
FillRectColour(bitmapDC, &rc, ColourOfElement(options.back, COLOR_WINDOWTEXT));
|
|
// Paint the entire client area and vertical scrollbar
|
|
::SendMessage(lb, WM_PRINT, reinterpret_cast<WPARAM>(bitmapDC), PRF_CLIENT|PRF_NONCLIENT);
|
|
::BitBlt(hDC, 0, 0, extent.x, extent.y, bitmapDC, 0, 0, SRCCOPY);
|
|
// Select a stock brush to prevent warnings from BoundsChecker
|
|
SelectBrush(bitmapDC, GetStockBrush(WHITE_BRUSH));
|
|
SelectBitmap(bitmapDC, hBitmapOld);
|
|
::DeleteDC(bitmapDC);
|
|
::DeleteObject(hBitmap);
|
|
}
|
|
|
|
LRESULT PASCAL ListBoxX::ControlWndProc(HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam) {
|
|
try {
|
|
ListBoxX *lbx = static_cast<ListBoxX *>(PointerFromWindow(::GetParent(hWnd)));
|
|
switch (iMessage) {
|
|
case WM_ERASEBKGND:
|
|
return TRUE;
|
|
|
|
case WM_PAINT: {
|
|
PAINTSTRUCT ps;
|
|
HDC hDC = ::BeginPaint(hWnd, &ps);
|
|
if (lbx) {
|
|
lbx->Paint(hDC);
|
|
}
|
|
::EndPaint(hWnd, &ps);
|
|
}
|
|
return 0;
|
|
|
|
case WM_MOUSEACTIVATE:
|
|
// This prevents the view activating when the scrollbar is clicked
|
|
return MA_NOACTIVATE;
|
|
|
|
case WM_LBUTTONDOWN: {
|
|
// We must take control of selection to prevent the ListBox activating
|
|
// the popup
|
|
const LRESULT lResult = ::SendMessage(hWnd, LB_ITEMFROMPOINT, 0, lParam);
|
|
if (HIWORD(lResult) == 0) {
|
|
ListBox_SetCurSel(hWnd, LOWORD(lResult));
|
|
if (lbx) {
|
|
lbx->OnSelChange();
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
case WM_LBUTTONUP:
|
|
return 0;
|
|
|
|
case WM_LBUTTONDBLCLK: {
|
|
if (lbx) {
|
|
lbx->OnDoubleClick();
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
case WM_MBUTTONDOWN:
|
|
// disable the scroll wheel button click action
|
|
return 0;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
WNDPROC prevWndProc = reinterpret_cast<WNDPROC>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
|
|
if (prevWndProc) {
|
|
return ::CallWindowProc(prevWndProc, hWnd, iMessage, wParam, lParam);
|
|
} else {
|
|
return ::DefWindowProc(hWnd, iMessage, wParam, lParam);
|
|
}
|
|
} catch (...) {
|
|
}
|
|
return ::DefWindowProc(hWnd, iMessage, wParam, lParam);
|
|
}
|
|
|
|
LRESULT ListBoxX::WndProc(HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam) {
|
|
switch (iMessage) {
|
|
case WM_CREATE: {
|
|
HINSTANCE hinstanceParent = GetWindowInstance(HwndFromWindow(*parent));
|
|
// Note that LBS_NOINTEGRALHEIGHT is specified to fix cosmetic issue when resizing the list
|
|
// but has useful side effect of speeding up list population significantly
|
|
lb = ::CreateWindowEx(
|
|
0, TEXT("listbox"), TEXT(""),
|
|
WS_CHILD | WS_VSCROLL | WS_VISIBLE |
|
|
LBS_OWNERDRAWFIXED | LBS_NODATA | LBS_NOINTEGRALHEIGHT,
|
|
0, 0, 150,80, hWnd,
|
|
reinterpret_cast<HMENU>(static_cast<ptrdiff_t>(ctrlID)),
|
|
hinstanceParent,
|
|
0);
|
|
WNDPROC prevWndProc = SubclassWindow(lb, ControlWndProc);
|
|
::SetWindowLongPtr(lb, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(prevWndProc));
|
|
}
|
|
break;
|
|
|
|
case WM_SIZE:
|
|
if (lb) {
|
|
SetRedraw(false);
|
|
::SetWindowPos(lb, 0, 0,0, LOWORD(lParam), HIWORD(lParam), SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOMOVE);
|
|
// Ensure the selection remains visible
|
|
CentreItem(GetSelection());
|
|
SetRedraw(true);
|
|
}
|
|
break;
|
|
|
|
case WM_PAINT: {
|
|
PAINTSTRUCT ps;
|
|
::BeginPaint(hWnd, &ps);
|
|
::EndPaint(hWnd, &ps);
|
|
}
|
|
break;
|
|
|
|
case WM_COMMAND:
|
|
// This is not actually needed now - the registered double click action is used
|
|
// directly to action a choice from the list.
|
|
::SendMessage(HwndFromWindow(*parent), iMessage, wParam, lParam);
|
|
break;
|
|
|
|
case WM_MEASUREITEM: {
|
|
MEASUREITEMSTRUCT *pMeasureItem = reinterpret_cast<MEASUREITEMSTRUCT *>(lParam);
|
|
pMeasureItem->itemHeight = ItemHeight();
|
|
}
|
|
break;
|
|
|
|
case WM_DRAWITEM:
|
|
Draw(reinterpret_cast<DRAWITEMSTRUCT *>(lParam));
|
|
break;
|
|
|
|
case WM_DESTROY:
|
|
lb = 0;
|
|
SetWindowPointer(hWnd, nullptr);
|
|
return ::DefWindowProc(hWnd, iMessage, wParam, lParam);
|
|
|
|
case WM_ERASEBKGND:
|
|
// To reduce flicker we can elide background erasure since this window is
|
|
// completely covered by its child.
|
|
return TRUE;
|
|
|
|
case WM_GETMINMAXINFO: {
|
|
MINMAXINFO *minMax = reinterpret_cast<MINMAXINFO*>(lParam);
|
|
minMax->ptMaxTrackSize = MaxTrackSize();
|
|
minMax->ptMinTrackSize = MinTrackSize();
|
|
}
|
|
break;
|
|
|
|
case WM_MOUSEACTIVATE:
|
|
return MA_NOACTIVATE;
|
|
|
|
case WM_NCHITTEST:
|
|
return NcHitTest(wParam, lParam);
|
|
|
|
case WM_NCLBUTTONDOWN:
|
|
// We have to implement our own window resizing because the DefWindowProc
|
|
// implementation insists on activating the resized window
|
|
StartResize(wParam);
|
|
return 0;
|
|
|
|
case WM_MOUSEMOVE: {
|
|
if (resizeHit == 0) {
|
|
return ::DefWindowProc(hWnd, iMessage, wParam, lParam);
|
|
} else {
|
|
ResizeToCursor();
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WM_LBUTTONUP:
|
|
case WM_CANCELMODE:
|
|
if (resizeHit != 0) {
|
|
resizeHit = 0;
|
|
::ReleaseCapture();
|
|
}
|
|
return ::DefWindowProc(hWnd, iMessage, wParam, lParam);
|
|
case WM_MOUSEWHEEL:
|
|
wheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
|
|
if (std::abs(wheelDelta) >= WHEEL_DELTA) {
|
|
const int nRows = GetVisibleRows();
|
|
int linesToScroll = std::clamp(nRows - 1, 1, 3);
|
|
linesToScroll *= (wheelDelta / WHEEL_DELTA);
|
|
int top = ListBox_GetTopIndex(lb) + linesToScroll;
|
|
if (top < 0) {
|
|
top = 0;
|
|
}
|
|
ListBox_SetTopIndex(lb, top);
|
|
// update wheel delta residue
|
|
if (wheelDelta >= 0)
|
|
wheelDelta = wheelDelta % WHEEL_DELTA;
|
|
else
|
|
wheelDelta = - (-wheelDelta % WHEEL_DELTA);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return ::DefWindowProc(hWnd, iMessage, wParam, lParam);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
LRESULT PASCAL ListBoxX::StaticWndProc(
|
|
HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam) {
|
|
if (iMessage == WM_CREATE) {
|
|
CREATESTRUCT *pCreate = reinterpret_cast<CREATESTRUCT *>(lParam);
|
|
SetWindowPointer(hWnd, pCreate->lpCreateParams);
|
|
}
|
|
// Find C++ object associated with window.
|
|
ListBoxX *lbx = static_cast<ListBoxX *>(PointerFromWindow(hWnd));
|
|
if (lbx) {
|
|
return lbx->WndProc(hWnd, iMessage, wParam, lParam);
|
|
} else {
|
|
return ::DefWindowProc(hWnd, iMessage, wParam, lParam);
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
|
|
bool ListBoxX_Register() noexcept {
|
|
WNDCLASSEX wndclassc {};
|
|
wndclassc.cbSize = sizeof(wndclassc);
|
|
// We need CS_HREDRAW and CS_VREDRAW because of the ellipsis that might be drawn for
|
|
// truncated items in the list and the appearance/disappearance of the vertical scroll bar.
|
|
// The list repaint is double-buffered to avoid the flicker this would otherwise cause.
|
|
wndclassc.style = CS_GLOBALCLASS | CS_HREDRAW | CS_VREDRAW;
|
|
wndclassc.cbWndExtra = sizeof(ListBoxX *);
|
|
wndclassc.hInstance = hinstPlatformRes;
|
|
wndclassc.lpfnWndProc = ListBoxX::StaticWndProc;
|
|
wndclassc.hCursor = ::LoadCursor(NULL, IDC_ARROW);
|
|
wndclassc.lpszClassName = ListBoxX_ClassName;
|
|
|
|
return ::RegisterClassEx(&wndclassc) != 0;
|
|
}
|
|
|
|
void ListBoxX_Unregister() noexcept {
|
|
if (hinstPlatformRes) {
|
|
::UnregisterClass(ListBoxX_ClassName, hinstPlatformRes);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
Menu::Menu() noexcept : mid{} {
|
|
}
|
|
|
|
void Menu::CreatePopUp() {
|
|
Destroy();
|
|
mid = ::CreatePopupMenu();
|
|
}
|
|
|
|
void Menu::Destroy() noexcept {
|
|
if (mid)
|
|
::DestroyMenu(static_cast<HMENU>(mid));
|
|
mid = 0;
|
|
}
|
|
|
|
void Menu::Show(Point pt, const Window &w) {
|
|
::TrackPopupMenu(static_cast<HMENU>(mid),
|
|
TPM_RIGHTBUTTON, static_cast<int>(pt.x - 4), static_cast<int>(pt.y), 0,
|
|
HwndFromWindow(w), nullptr);
|
|
Destroy();
|
|
}
|
|
|
|
ColourRGBA Platform::Chrome() {
|
|
return ColourRGBA::FromRGB(static_cast<int>(::GetSysColor(COLOR_3DFACE)));
|
|
}
|
|
|
|
ColourRGBA Platform::ChromeHighlight() {
|
|
return ColourRGBA::FromRGB(static_cast<int>(::GetSysColor(COLOR_3DHIGHLIGHT)));
|
|
}
|
|
|
|
const char *Platform::DefaultFont() {
|
|
return "Verdana";
|
|
}
|
|
|
|
int Platform::DefaultFontSize() {
|
|
return 8;
|
|
}
|
|
|
|
unsigned int Platform::DoubleClickTime() {
|
|
return ::GetDoubleClickTime();
|
|
}
|
|
|
|
void Platform::DebugDisplay(const char *s) noexcept {
|
|
::OutputDebugStringA(s);
|
|
}
|
|
|
|
//#define TRACE
|
|
|
|
#ifdef TRACE
|
|
void Platform::DebugPrintf(const char *format, ...) noexcept {
|
|
char buffer[2000];
|
|
va_list pArguments;
|
|
va_start(pArguments, format);
|
|
vsprintf(buffer,format,pArguments);
|
|
va_end(pArguments);
|
|
Platform::DebugDisplay(buffer);
|
|
}
|
|
#else
|
|
void Platform::DebugPrintf(const char *, ...) noexcept {
|
|
}
|
|
#endif
|
|
|
|
static bool assertionPopUps = true;
|
|
|
|
bool Platform::ShowAssertionPopUps(bool assertionPopUps_) noexcept {
|
|
const bool ret = assertionPopUps;
|
|
assertionPopUps = assertionPopUps_;
|
|
return ret;
|
|
}
|
|
|
|
void Platform::Assert(const char *c, const char *file, int line) noexcept {
|
|
char buffer[2000] {};
|
|
sprintf(buffer, "Assertion [%s] failed at %s %d%s", c, file, line, assertionPopUps ? "" : "\r\n");
|
|
if (assertionPopUps) {
|
|
const int idButton = ::MessageBoxA(0, buffer, "Assertion failure",
|
|
MB_ABORTRETRYIGNORE|MB_ICONHAND|MB_SETFOREGROUND|MB_TASKMODAL);
|
|
if (idButton == IDRETRY) {
|
|
::DebugBreak();
|
|
} else if (idButton == IDIGNORE) {
|
|
// all OK
|
|
} else {
|
|
abort();
|
|
}
|
|
} else {
|
|
Platform::DebugDisplay(buffer);
|
|
::DebugBreak();
|
|
abort();
|
|
}
|
|
}
|
|
|
|
void Platform_Initialise(void *hInstance) noexcept {
|
|
hinstPlatformRes = static_cast<HINSTANCE>(hInstance);
|
|
LoadDpiForWindow();
|
|
ListBoxX_Register();
|
|
}
|
|
|
|
void Platform_Finalise(bool fromDllMain) noexcept {
|
|
#if defined(USE_D2D)
|
|
if (!fromDllMain) {
|
|
ReleaseUnknown(pIDWriteFactory);
|
|
ReleaseUnknown(pD2DFactory);
|
|
if (hDLLDWrite) {
|
|
FreeLibrary(hDLLDWrite);
|
|
hDLLDWrite = {};
|
|
}
|
|
if (hDLLD2D) {
|
|
FreeLibrary(hDLLD2D);
|
|
hDLLD2D = {};
|
|
}
|
|
}
|
|
#endif
|
|
if (!fromDllMain && hDLLShcore) {
|
|
FreeLibrary(hDLLShcore);
|
|
hDLLShcore = {};
|
|
}
|
|
ListBoxX_Unregister();
|
|
}
|
|
|
|
}
|