3548 lines
107 KiB
C++
3548 lines
107 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 <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 0x0500
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#undef WINVER
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#define WINVER 0x0500
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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 "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 "FontQuality.h"
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#include "PlatWin.h"
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#ifndef SPI_GETFONTSMOOTHINGCONTRAST
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#define SPI_GETFONTSMOOTHINGCONTRAST 0x200C
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#endif
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#ifndef LOAD_LIBRARY_SEARCH_SYSTEM32
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#define LOAD_LIBRARY_SEARCH_SYSTEM32 0x00000800
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#endif
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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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namespace Scintilla {
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UINT CodePageFromCharSet(DWORD 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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IDWriteRenderingParams *defaultRenderingParams = nullptr;
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IDWriteRenderingParams *customClearTypeRenderingParams = 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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if (pIDWriteFactory) {
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const HRESULT hr = pIDWriteFactory->CreateRenderingParams(&defaultRenderingParams);
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if (SUCCEEDED(hr)) {
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unsigned int clearTypeContrast;
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if (::SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &clearTypeContrast, 0)) {
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FLOAT gamma;
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if (clearTypeContrast >= 1000 && clearTypeContrast <= 2200)
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gamma = static_cast<FLOAT>(clearTypeContrast) / 1000.0f;
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else
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gamma = defaultRenderingParams->GetGamma();
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pIDWriteFactory->CreateCustomRenderingParams(gamma, defaultRenderingParams->GetEnhancedContrast(), defaultRenderingParams->GetClearTypeLevel(),
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defaultRenderingParams->GetPixelGeometry(), defaultRenderingParams->GetRenderingMode(), &customClearTypeRenderingParams);
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}
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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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struct FormatAndMetrics {
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int technology;
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HFONT hfont;
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#if defined(USE_D2D)
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IDWriteTextFormat *pTextFormat;
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#endif
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int extraFontFlag;
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int characterSet;
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FLOAT yAscent;
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FLOAT yDescent;
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FLOAT yInternalLeading;
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FormatAndMetrics(HFONT hfont_, int extraFontFlag_, int characterSet_) noexcept :
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technology(SCWIN_TECH_GDI), hfont(hfont_),
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#if defined(USE_D2D)
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pTextFormat(nullptr),
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#endif
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extraFontFlag(extraFontFlag_), characterSet(characterSet_), yAscent(2), yDescent(1), yInternalLeading(0) {
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}
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#if defined(USE_D2D)
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FormatAndMetrics(IDWriteTextFormat *pTextFormat_,
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int extraFontFlag_,
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int characterSet_,
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FLOAT yAscent_,
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FLOAT yDescent_,
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FLOAT yInternalLeading_) noexcept :
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technology(SCWIN_TECH_DIRECTWRITE),
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hfont{},
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pTextFormat(pTextFormat_),
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extraFontFlag(extraFontFlag_),
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characterSet(characterSet_),
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yAscent(yAscent_),
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yDescent(yDescent_),
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yInternalLeading(yInternalLeading_) {
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}
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#endif
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FormatAndMetrics(const FormatAndMetrics &) = delete;
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FormatAndMetrics(FormatAndMetrics &&) = delete;
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FormatAndMetrics &operator=(const FormatAndMetrics &) = delete;
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FormatAndMetrics &operator=(FormatAndMetrics &&) = delete;
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~FormatAndMetrics() {
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if (hfont)
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::DeleteObject(hfont);
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#if defined(USE_D2D)
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ReleaseUnknown(pTextFormat);
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#endif
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extraFontFlag = 0;
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characterSet = 0;
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yAscent = 2;
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yDescent = 1;
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yInternalLeading = 0;
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}
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HFONT HFont() noexcept;
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};
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HFONT FormatAndMetrics::HFont() noexcept {
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LOGFONTW lf = {};
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#if defined(USE_D2D)
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if (technology == SCWIN_TECH_GDI) {
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if (0 == ::GetObjectW(hfont, sizeof(lf), &lf)) {
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return {};
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}
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} else {
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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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}
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#else
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if (0 == ::GetObjectW(hfont, sizeof(lf), &lf)) {
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return {};
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}
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#endif
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return ::CreateFontIndirectW(&lf);
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}
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#ifndef CLEARTYPE_QUALITY
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#define CLEARTYPE_QUALITY 5
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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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FormatAndMetrics *FamFromFontID(void *fid) noexcept {
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return static_cast<FormatAndMetrics *>(fid);
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}
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constexpr BYTE Win32MapFontQuality(int extraFontFlag) noexcept {
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switch (extraFontFlag & SC_EFF_QUALITY_MASK) {
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case SC_EFF_QUALITY_NON_ANTIALIASED:
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return NONANTIALIASED_QUALITY;
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case SC_EFF_QUALITY_ANTIALIASED:
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return ANTIALIASED_QUALITY;
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case SC_EFF_QUALITY_LCD_OPTIMIZED:
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return CLEARTYPE_QUALITY;
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default:
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return SC_EFF_QUALITY_DEFAULT;
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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(int extraFontFlag) noexcept {
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switch (extraFontFlag & SC_EFF_QUALITY_MASK) {
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case SC_EFF_QUALITY_NON_ANTIALIASED:
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return D2D1_TEXT_ANTIALIAS_MODE_ALIASED;
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case SC_EFF_QUALITY_ANTIALIASED:
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return D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
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case SC_EFF_QUALITY_LCD_OPTIMIZED:
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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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void SetLogFont(LOGFONTW &lf, const char *faceName, int characterSet, float size, int weight, bool italic, int 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 = 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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FontID CreateFontFromParameters(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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FontID fid = nullptr;
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if (fp.technology == SCWIN_TECH_GDI) {
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HFONT hfont = ::CreateFontIndirectW(&lf);
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fid = new FormatAndMetrics(hfont, fp.extraFontFlag, fp.characterSet);
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} else {
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#if defined(USE_D2D)
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IDWriteTextFormat *pTextFormat = nullptr;
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const std::wstring wsFace = WStringFromUTF8(fp.faceName);
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const FLOAT fHeight = 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, L"en-us", &pTextFormat);
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if (SUCCEEDED(hr)) {
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pTextFormat->SetWordWrapping(DWRITE_WORD_WRAPPING_NO_WRAP);
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FLOAT yAscent = 1.0f;
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FLOAT yDescent = 1.0f;
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FLOAT yInternalLeading = 0.0f;
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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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fid = new FormatAndMetrics(pTextFormat, fp.extraFontFlag, fp.characterSet, yAscent, yDescent, yInternalLeading);
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}
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#endif
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}
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return fid;
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}
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}
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Font::Font() noexcept : fid{} {
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}
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Font::~Font() {
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}
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void Font::Create(const FontParameters &fp) {
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Release();
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if (fp.faceName)
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fid = CreateFontFromParameters(fp);
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}
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void Font::Release() {
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if (fid)
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delete FamFromFontID(fid);
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fid = nullptr;
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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() {
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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 = 1000;
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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, bool unicodeMode, int codePage=0) :
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VarBuffer<wchar_t, stackBufferLength>(text.length()) {
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if (unicodeMode) {
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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 {
|
|
if (fnGetSystemMetricsForDpi) {
|
|
return fnGetSystemMetricsForDpi(nIndex, dpi);
|
|
}
|
|
|
|
int value = ::GetSystemMetrics(nIndex);
|
|
value = (dpi == uSystemDPI) ? value : ::MulDiv(value, dpi, uSystemDPI);
|
|
return value;
|
|
}
|
|
|
|
class SurfaceGDI : public Surface {
|
|
bool unicodeMode=false;
|
|
HDC hdc{};
|
|
bool hdcOwned=false;
|
|
HPEN pen{};
|
|
HPEN penOld{};
|
|
HBRUSH brush{};
|
|
HBRUSH brushOld{};
|
|
HFONT fontOld{};
|
|
HBITMAP bitmap{};
|
|
HBITMAP bitmapOld{};
|
|
|
|
int logPixelsY = USER_DEFAULT_SCREEN_DPI;
|
|
|
|
int maxWidthMeasure = INT_MAX;
|
|
// There appears to be a 16 bit string length limit in GDI on NT.
|
|
int maxLenText = 65535;
|
|
|
|
int codePage = 0;
|
|
|
|
void BrushColour(ColourDesired back) noexcept;
|
|
void SetFont(const Font &font_) noexcept;
|
|
void Clear() noexcept;
|
|
|
|
public:
|
|
SurfaceGDI() noexcept;
|
|
// Deleted so SurfaceGDI objects can not be copied.
|
|
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;
|
|
void InitPixMap(int width, int height, Surface *surface_, WindowID wid) override;
|
|
|
|
void Release() override;
|
|
bool Initialised() override;
|
|
void PenColour(ColourDesired fore) override;
|
|
int LogPixelsY() override;
|
|
int DeviceHeightFont(int points) override;
|
|
void MoveTo(int x_, int y_) override;
|
|
void LineTo(int x_, int y_) override;
|
|
void Polygon(Point *pts, size_t npts, ColourDesired fore, ColourDesired back) override;
|
|
void RectangleDraw(PRectangle rc, ColourDesired fore, ColourDesired back) override;
|
|
void FillRectangle(PRectangle rc, ColourDesired back) override;
|
|
void FillRectangle(PRectangle rc, Surface &surfacePattern) override;
|
|
void RoundedRectangle(PRectangle rc, ColourDesired fore, ColourDesired back) override;
|
|
void AlphaRectangle(PRectangle rc, int cornerSize, ColourDesired fill, int alphaFill,
|
|
ColourDesired outline, int alphaOutline, int flags) 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, ColourDesired fore, ColourDesired back) 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, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) override;
|
|
void DrawTextClipped(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) override;
|
|
void DrawTextTransparent(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore) override;
|
|
void MeasureWidths(Font &font_, std::string_view text, XYPOSITION *positions) override;
|
|
XYPOSITION WidthText(Font &font_, std::string_view text) override;
|
|
XYPOSITION Ascent(Font &font_) override;
|
|
XYPOSITION Descent(Font &font_) override;
|
|
XYPOSITION InternalLeading(Font &font_) override;
|
|
XYPOSITION Height(Font &font_) override;
|
|
XYPOSITION AverageCharWidth(Font &font_) override;
|
|
|
|
void SetClip(PRectangle rc) override;
|
|
void FlushCachedState() override;
|
|
|
|
void SetUnicodeMode(bool unicodeMode_) override;
|
|
void SetDBCSMode(int codePage_) override;
|
|
void SetBidiR2L(bool bidiR2L_) override;
|
|
};
|
|
|
|
SurfaceGDI::SurfaceGDI() noexcept {
|
|
}
|
|
|
|
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() {
|
|
Clear();
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void SurfaceGDI::InitPixMap(int width, int height, Surface *surface_, WindowID wid) {
|
|
Release();
|
|
SurfaceGDI *psurfOther = dynamic_cast<SurfaceGDI *>(surface_);
|
|
// Should only ever be called with a SurfaceGDI, not a SurfaceD2D
|
|
PLATFORM_ASSERT(psurfOther);
|
|
hdc = ::CreateCompatibleDC(psurfOther->hdc);
|
|
hdcOwned = true;
|
|
bitmap = ::CreateCompatibleBitmap(psurfOther->hdc, width, height);
|
|
bitmapOld = SelectBitmap(hdc, bitmap);
|
|
::SetTextAlign(hdc, TA_BASELINE);
|
|
SetUnicodeMode(psurfOther->unicodeMode);
|
|
SetDBCSMode(psurfOther->codePage);
|
|
logPixelsY = DpiForWindow(wid);
|
|
}
|
|
|
|
void SurfaceGDI::PenColour(ColourDesired fore) {
|
|
if (pen) {
|
|
::SelectObject(hdc, penOld);
|
|
::DeleteObject(pen);
|
|
pen = {};
|
|
penOld = {};
|
|
}
|
|
pen = ::CreatePen(0,1,fore.AsInteger());
|
|
penOld = SelectPen(hdc, pen);
|
|
}
|
|
|
|
void SurfaceGDI::BrushColour(ColourDesired back) noexcept {
|
|
if (brush) {
|
|
::SelectObject(hdc, brushOld);
|
|
::DeleteObject(brush);
|
|
brush = {};
|
|
brushOld = {};
|
|
}
|
|
brush = ::CreateSolidBrush(back.AsInteger());
|
|
brushOld = SelectBrush(hdc, brush);
|
|
}
|
|
|
|
void SurfaceGDI::SetFont(const Font &font_) noexcept {
|
|
const FormatAndMetrics *pfm = FamFromFontID(font_.GetID());
|
|
PLATFORM_ASSERT(pfm->technology == SCWIN_TECH_GDI);
|
|
if (fontOld) {
|
|
SelectFont(hdc, pfm->hfont);
|
|
} else {
|
|
fontOld = SelectFont(hdc, pfm->hfont);
|
|
}
|
|
}
|
|
|
|
int SurfaceGDI::LogPixelsY() {
|
|
return logPixelsY;
|
|
}
|
|
|
|
int SurfaceGDI::DeviceHeightFont(int points) {
|
|
return ::MulDiv(points, LogPixelsY(), 72);
|
|
}
|
|
|
|
void SurfaceGDI::MoveTo(int x_, int y_) {
|
|
::MoveToEx(hdc, x_, y_, nullptr);
|
|
}
|
|
|
|
void SurfaceGDI::LineTo(int x_, int y_) {
|
|
::LineTo(hdc, x_, y_);
|
|
}
|
|
|
|
void SurfaceGDI::Polygon(Point *pts, size_t npts, ColourDesired fore, ColourDesired back) {
|
|
PenColour(fore);
|
|
BrushColour(back);
|
|
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, ColourDesired fore, ColourDesired back) {
|
|
PenColour(fore);
|
|
BrushColour(back);
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::Rectangle(hdc, rcw.left, rcw.top, rcw.right, rcw.bottom);
|
|
}
|
|
|
|
void SurfaceGDI::FillRectangle(PRectangle rc, ColourDesired back) {
|
|
// 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, back.AsInteger());
|
|
::ExtTextOut(hdc, rcw.left, rcw.top, ETO_OPAQUE, &rcw, TEXT(""), 0, nullptr);
|
|
}
|
|
|
|
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, ColourDesired fore, ColourDesired back) {
|
|
PenColour(fore);
|
|
BrushColour(back);
|
|
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(ColourDesired colour, unsigned int alpha) noexcept {
|
|
return dwordFromBGRA(
|
|
AlphaScaled(colour.GetBlue(), alpha),
|
|
AlphaScaled(colour.GetGreen(), alpha),
|
|
AlphaScaled(colour.GetRed(), alpha),
|
|
static_cast<byte>(alpha));
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
constexpr unsigned int Proportional(unsigned char a, unsigned char b, float t) noexcept {
|
|
return static_cast<unsigned int>(a + t * (b - a));
|
|
}
|
|
|
|
ColourAlpha Proportional(ColourAlpha a, ColourAlpha b, float t) noexcept {
|
|
return ColourAlpha(
|
|
Proportional(a.GetRed(), b.GetRed(), t),
|
|
Proportional(a.GetGreen(), b.GetGreen(), t),
|
|
Proportional(a.GetBlue(), b.GetBlue(), t),
|
|
Proportional(a.GetAlpha(), b.GetAlpha(), t));
|
|
}
|
|
|
|
ColourAlpha GradientValue(const std::vector<ColourStop> &stops, float proportion) noexcept {
|
|
for (size_t stop = 0; stop < stops.size() - 1; stop++) {
|
|
// Loop through each pair of stops
|
|
const float positionStart = stops[stop].position;
|
|
const float positionEnd = stops[stop + 1].position;
|
|
if ((proportion >= positionStart) && (proportion <= positionEnd)) {
|
|
const float proportionInPair = (proportion - positionStart) /
|
|
(positionEnd - positionStart);
|
|
return Proportional(stops[stop].colour, stops[stop + 1].colour, proportionInPair);
|
|
}
|
|
}
|
|
// Loop should always find a value
|
|
return ColourAlpha();
|
|
}
|
|
|
|
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, int cornerSize, ColourDesired fill, int alphaFill,
|
|
ColourDesired outline, int alphaOutline, int /* flags*/ ) {
|
|
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<LONG>(cornerSize, (std::min(size.cx, size.cy) / 2) - 2);
|
|
|
|
constexpr DWORD valEmpty = dwordFromBGRA(0,0,0,0);
|
|
const DWORD valFill = dwordMultiplied(fill, alphaFill);
|
|
const DWORD valOutline = dwordMultiplied(outline, alphaOutline);
|
|
|
|
// 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(outline);
|
|
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 float proportion = y / (rc.Height() - 1.0f);
|
|
const ColourAlpha mixed = GradientValue(stops, proportion);
|
|
const DWORD valFill = dwordMultiplied(mixed, mixed.GetAlpha());
|
|
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 float proportion = x / (rc.Width() - 1.0f);
|
|
const ColourAlpha mixed = GradientValue(stops, proportion);
|
|
const DWORD valFill = dwordMultiplied(mixed, mixed.GetAlpha());
|
|
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, 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, ColourDesired fore, ColourDesired back) {
|
|
PenColour(fore);
|
|
BrushColour(back);
|
|
const RECT rcw = RectFromPRectangle(rc);
|
|
::Ellipse(hdc, rcw.left, rcw.top, rcw.right, rcw.bottom);
|
|
}
|
|
|
|
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 (unicodeMode) {
|
|
const TextWide tbuf(text, unicodeMode, 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, Font &font_, XYPOSITION ybase, std::string_view text,
|
|
ColourDesired fore, ColourDesired back) {
|
|
::SetTextColor(hdc, fore.AsInteger());
|
|
::SetBkColor(hdc, back.AsInteger());
|
|
DrawTextCommon(rc, font_, ybase, text, ETO_OPAQUE);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextClipped(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text,
|
|
ColourDesired fore, ColourDesired back) {
|
|
::SetTextColor(hdc, fore.AsInteger());
|
|
::SetBkColor(hdc, back.AsInteger());
|
|
DrawTextCommon(rc, font_, ybase, text, ETO_OPAQUE | ETO_CLIPPED);
|
|
}
|
|
|
|
void SurfaceGDI::DrawTextTransparent(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text,
|
|
ColourDesired fore) {
|
|
// Avoid drawing spaces in transparent mode
|
|
for (const char ch : text) {
|
|
if (ch != ' ') {
|
|
::SetTextColor(hdc, fore.AsInteger());
|
|
::SetBkMode(hdc, TRANSPARENT);
|
|
DrawTextCommon(rc, font_, ybase, text, 0);
|
|
::SetBkMode(hdc, OPAQUE);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::WidthText(Font &font_, std::string_view text) {
|
|
SetFont(font_);
|
|
SIZE sz={0,0};
|
|
if (!unicodeMode) {
|
|
::GetTextExtentPoint32A(hdc, text.data(), std::min(static_cast<int>(text.length()), maxLenText), &sz);
|
|
} else {
|
|
const TextWide tbuf(text, unicodeMode, codePage);
|
|
::GetTextExtentPoint32W(hdc, tbuf.buffer, tbuf.tlen, &sz);
|
|
}
|
|
return static_cast<XYPOSITION>(sz.cx);
|
|
}
|
|
|
|
void SurfaceGDI::MeasureWidths(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 (unicodeMode) {
|
|
const TextWide tbuf(text, unicodeMode, 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::Ascent(Font &font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmAscent);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::Descent(Font &font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmDescent);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::InternalLeading(Font &font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmInternalLeading);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::Height(Font &font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmHeight);
|
|
}
|
|
|
|
XYPOSITION SurfaceGDI::AverageCharWidth(Font &font_) {
|
|
SetFont(font_);
|
|
TEXTMETRIC tm;
|
|
::GetTextMetrics(hdc, &tm);
|
|
return static_cast<XYPOSITION>(tm.tmAveCharWidth);
|
|
}
|
|
|
|
void SurfaceGDI::SetClip(PRectangle rc) {
|
|
::IntersectClipRect(hdc, static_cast<int>(rc.left), static_cast<int>(rc.top),
|
|
static_cast<int>(rc.right), static_cast<int>(rc.bottom));
|
|
}
|
|
|
|
void SurfaceGDI::FlushCachedState() {
|
|
pen = {};
|
|
brush = {};
|
|
}
|
|
|
|
void SurfaceGDI::SetUnicodeMode(bool unicodeMode_) {
|
|
unicodeMode=unicodeMode_;
|
|
}
|
|
|
|
void SurfaceGDI::SetDBCSMode(int codePage_) {
|
|
// No action on window as automatically handled by system.
|
|
codePage = codePage_;
|
|
}
|
|
|
|
void SurfaceGDI::SetBidiR2L(bool) {
|
|
}
|
|
|
|
#if defined(USE_D2D)
|
|
|
|
namespace {
|
|
|
|
constexpr D2D1_RECT_F RectangleFromPRectangle(PRectangle rc) noexcept {
|
|
return { rc.left, rc.top, rc.right, rc.bottom };
|
|
}
|
|
|
|
}
|
|
|
|
class BlobInline;
|
|
|
|
class SurfaceD2D : public Surface {
|
|
bool unicodeMode;
|
|
int x, y;
|
|
|
|
int codePage;
|
|
int codePageText;
|
|
|
|
ID2D1RenderTarget *pRenderTarget;
|
|
ID2D1BitmapRenderTarget *pBitmapRenderTarget;
|
|
bool ownRenderTarget;
|
|
int clipsActive;
|
|
|
|
IDWriteTextFormat *pTextFormat;
|
|
FLOAT yAscent;
|
|
FLOAT yDescent;
|
|
FLOAT yInternalLeading;
|
|
|
|
ID2D1SolidColorBrush *pBrush;
|
|
|
|
int logPixelsY;
|
|
|
|
void Clear() noexcept;
|
|
void SetFont(const Font &font_) noexcept;
|
|
HRESULT GetBitmap(ID2D1Bitmap **ppBitmap);
|
|
|
|
public:
|
|
SurfaceD2D() 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() override;
|
|
|
|
void SetScale(WindowID wid) noexcept;
|
|
void Init(WindowID wid) override;
|
|
void Init(SurfaceID sid, WindowID wid) override;
|
|
void InitPixMap(int width, int height, Surface *surface_, WindowID wid) override;
|
|
|
|
void Release() override;
|
|
bool Initialised() override;
|
|
|
|
HRESULT FlushDrawing();
|
|
|
|
void PenColour(ColourDesired fore) override;
|
|
void D2DPenColour(ColourDesired fore, int alpha=255);
|
|
int LogPixelsY() override;
|
|
int DeviceHeightFont(int points) override;
|
|
void MoveTo(int x_, int y_) override;
|
|
void LineTo(int x_, int y_) override;
|
|
void Polygon(Point *pts, size_t npts, ColourDesired fore, ColourDesired back) override;
|
|
void RectangleDraw(PRectangle rc, ColourDesired fore, ColourDesired back) override;
|
|
void FillRectangle(PRectangle rc, ColourDesired back) override;
|
|
void FillRectangle(PRectangle rc, Surface &surfacePattern) override;
|
|
void RoundedRectangle(PRectangle rc, ColourDesired fore, ColourDesired back) override;
|
|
void AlphaRectangle(PRectangle rc, int cornerSize, ColourDesired fill, int alphaFill,
|
|
ColourDesired outline, int alphaOutline, int flags) 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, ColourDesired fore, ColourDesired back) 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, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) override;
|
|
void DrawTextClipped(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) override;
|
|
void DrawTextTransparent(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore) override;
|
|
void MeasureWidths(Font &font_, std::string_view text, XYPOSITION *positions) override;
|
|
XYPOSITION WidthText(Font &font_, std::string_view text) override;
|
|
XYPOSITION Ascent(Font &font_) override;
|
|
XYPOSITION Descent(Font &font_) override;
|
|
XYPOSITION InternalLeading(Font &font_) override;
|
|
XYPOSITION Height(Font &font_) override;
|
|
XYPOSITION AverageCharWidth(Font &font_) override;
|
|
|
|
void SetClip(PRectangle rc) override;
|
|
void FlushCachedState() override;
|
|
|
|
void SetUnicodeMode(bool unicodeMode_) override;
|
|
void SetDBCSMode(int codePage_) override;
|
|
void SetBidiR2L(bool bidiR2L_) override;
|
|
};
|
|
|
|
SurfaceD2D::SurfaceD2D() noexcept :
|
|
unicodeMode(false),
|
|
x(0), y(0) {
|
|
|
|
codePage = 0;
|
|
codePageText = 0;
|
|
|
|
pRenderTarget = nullptr;
|
|
pBitmapRenderTarget = nullptr;
|
|
ownRenderTarget = false;
|
|
clipsActive = 0;
|
|
|
|
// From selected font
|
|
pTextFormat = nullptr;
|
|
yAscent = 2;
|
|
yDescent = 1;
|
|
yInternalLeading = 0;
|
|
|
|
pBrush = nullptr;
|
|
|
|
logPixelsY = USER_DEFAULT_SCREEN_DPI;
|
|
}
|
|
|
|
SurfaceD2D::~SurfaceD2D() {
|
|
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() {
|
|
Clear();
|
|
}
|
|
|
|
void SurfaceD2D::SetScale(WindowID wid) noexcept {
|
|
logPixelsY = DpiForWindow(wid);
|
|
}
|
|
|
|
bool SurfaceD2D::Initialised() {
|
|
return pRenderTarget != nullptr;
|
|
}
|
|
|
|
HRESULT SurfaceD2D::FlushDrawing() {
|
|
return pRenderTarget->Flush();
|
|
}
|
|
|
|
void SurfaceD2D::Init(WindowID wid) {
|
|
Release();
|
|
SetScale(wid);
|
|
}
|
|
|
|
void SurfaceD2D::Init(SurfaceID sid, WindowID wid) {
|
|
Release();
|
|
SetScale(wid);
|
|
pRenderTarget = static_cast<ID2D1RenderTarget *>(sid);
|
|
}
|
|
|
|
void SurfaceD2D::InitPixMap(int width, int height, Surface *surface_, WindowID wid) {
|
|
Release();
|
|
SetScale(wid);
|
|
SurfaceD2D *psurfOther = dynamic_cast<SurfaceD2D *>(surface_);
|
|
// Should only ever be called with a SurfaceD2D, not a SurfaceGDI
|
|
PLATFORM_ASSERT(psurfOther);
|
|
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 = psurfOther->pRenderTarget->GetPixelFormat();
|
|
#endif
|
|
desiredFormat.alphaMode = D2D1_ALPHA_MODE_IGNORE;
|
|
const HRESULT hr = psurfOther->pRenderTarget->CreateCompatibleRenderTarget(
|
|
&desiredSize, nullptr, &desiredFormat, D2D1_COMPATIBLE_RENDER_TARGET_OPTIONS_NONE, &pBitmapRenderTarget);
|
|
if (SUCCEEDED(hr)) {
|
|
pRenderTarget = pBitmapRenderTarget;
|
|
pRenderTarget->BeginDraw();
|
|
ownRenderTarget = true;
|
|
}
|
|
SetUnicodeMode(psurfOther->unicodeMode);
|
|
SetDBCSMode(psurfOther->codePage);
|
|
}
|
|
|
|
HRESULT SurfaceD2D::GetBitmap(ID2D1Bitmap **ppBitmap) {
|
|
PLATFORM_ASSERT(pBitmapRenderTarget);
|
|
return pBitmapRenderTarget->GetBitmap(ppBitmap);
|
|
}
|
|
|
|
void SurfaceD2D::PenColour(ColourDesired fore) {
|
|
D2DPenColour(fore);
|
|
}
|
|
|
|
void SurfaceD2D::D2DPenColour(ColourDesired fore, int alpha) {
|
|
if (pRenderTarget) {
|
|
D2D_COLOR_F col;
|
|
col.r = fore.GetRedComponent();
|
|
col.g = fore.GetGreenComponent();
|
|
col.b = fore.GetBlueComponent();
|
|
col.a = alpha / 255.0f;
|
|
if (pBrush) {
|
|
pBrush->SetColor(col);
|
|
} else {
|
|
const HRESULT hr = pRenderTarget->CreateSolidColorBrush(col, &pBrush);
|
|
if (!SUCCEEDED(hr)) {
|
|
ReleaseUnknown(pBrush);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::SetFont(const Font &font_) noexcept {
|
|
const FormatAndMetrics *pfm = FamFromFontID(font_.GetID());
|
|
PLATFORM_ASSERT(pfm->technology == SCWIN_TECH_DIRECTWRITE);
|
|
pTextFormat = pfm->pTextFormat;
|
|
yAscent = pfm->yAscent;
|
|
yDescent = pfm->yDescent;
|
|
yInternalLeading = pfm->yInternalLeading;
|
|
codePageText = codePage;
|
|
if (!unicodeMode && pfm->characterSet) {
|
|
codePageText = Scintilla::CodePageFromCharSet(pfm->characterSet, codePage);
|
|
}
|
|
if (pRenderTarget) {
|
|
D2D1_TEXT_ANTIALIAS_MODE aaMode;
|
|
aaMode = DWriteMapFontQuality(pfm->extraFontFlag);
|
|
|
|
if (aaMode == D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE && customClearTypeRenderingParams)
|
|
pRenderTarget->SetTextRenderingParams(customClearTypeRenderingParams);
|
|
else if (defaultRenderingParams)
|
|
pRenderTarget->SetTextRenderingParams(defaultRenderingParams);
|
|
|
|
pRenderTarget->SetTextAntialiasMode(aaMode);
|
|
}
|
|
}
|
|
|
|
int SurfaceD2D::LogPixelsY() {
|
|
return logPixelsY;
|
|
}
|
|
|
|
int SurfaceD2D::DeviceHeightFont(int points) {
|
|
return ::MulDiv(points, LogPixelsY(), 72);
|
|
}
|
|
|
|
void SurfaceD2D::MoveTo(int x_, int y_) {
|
|
x = x_;
|
|
y = y_;
|
|
}
|
|
|
|
static constexpr int Delta(int difference) noexcept {
|
|
if (difference < 0)
|
|
return -1;
|
|
else if (difference > 0)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
void SurfaceD2D::LineTo(int x_, int y_) {
|
|
if (pRenderTarget) {
|
|
const int xDiff = x_ - x;
|
|
const int xDelta = Delta(xDiff);
|
|
const int yDiff = y_ - y;
|
|
const int yDelta = Delta(yDiff);
|
|
if ((xDiff == 0) || (yDiff == 0)) {
|
|
// Horizontal or vertical lines can be more precisely drawn as a filled rectangle
|
|
const int xEnd = x_ - xDelta;
|
|
const int left = std::min(x, xEnd);
|
|
const int width = std::abs(x - xEnd) + 1;
|
|
const int yEnd = y_ - yDelta;
|
|
const int top = std::min(y, yEnd);
|
|
const int height = std::abs(y - yEnd) + 1;
|
|
const D2D1_RECT_F rectangle1 = D2D1::RectF(static_cast<float>(left), static_cast<float>(top),
|
|
static_cast<float>(left+width), static_cast<float>(top+height));
|
|
pRenderTarget->FillRectangle(&rectangle1, pBrush);
|
|
} else if ((std::abs(xDiff) == std::abs(yDiff))) {
|
|
// 45 degree slope
|
|
pRenderTarget->DrawLine(D2D1::Point2F(x + 0.5f, y + 0.5f),
|
|
D2D1::Point2F(x_ + 0.5f - xDelta, y_ + 0.5f - yDelta), pBrush);
|
|
} else {
|
|
// Line has a different slope so difficult to avoid last pixel
|
|
pRenderTarget->DrawLine(D2D1::Point2F(x + 0.5f, y + 0.5f),
|
|
D2D1::Point2F(x_ + 0.5f, y_ + 0.5f), pBrush);
|
|
}
|
|
x = x_;
|
|
y = y_;
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::Polygon(Point *pts, size_t npts, ColourDesired fore, ColourDesired back) {
|
|
PLATFORM_ASSERT(pRenderTarget && (npts > 2));
|
|
if (pRenderTarget) {
|
|
ID2D1PathGeometry *geometry = nullptr;
|
|
HRESULT hr = pD2DFactory->CreatePathGeometry(&geometry);
|
|
PLATFORM_ASSERT(geometry);
|
|
if (SUCCEEDED(hr) && geometry) {
|
|
ID2D1GeometrySink *sink = nullptr;
|
|
hr = geometry->Open(&sink);
|
|
PLATFORM_ASSERT(sink);
|
|
if (SUCCEEDED(hr) && sink) {
|
|
sink->BeginFigure(D2D1::Point2F(pts[0].x + 0.5f, pts[0].y + 0.5f), D2D1_FIGURE_BEGIN_FILLED);
|
|
for (size_t i=1; i<npts; i++) {
|
|
sink->AddLine(D2D1::Point2F(pts[i].x + 0.5f, pts[i].y + 0.5f));
|
|
}
|
|
sink->EndFigure(D2D1_FIGURE_END_CLOSED);
|
|
sink->Close();
|
|
ReleaseUnknown(sink);
|
|
|
|
D2DPenColour(back);
|
|
pRenderTarget->FillGeometry(geometry,pBrush);
|
|
D2DPenColour(fore);
|
|
pRenderTarget->DrawGeometry(geometry,pBrush);
|
|
}
|
|
ReleaseUnknown(geometry);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::RectangleDraw(PRectangle rc, ColourDesired fore, ColourDesired back) {
|
|
if (pRenderTarget) {
|
|
const D2D1_RECT_F rectangle1 = D2D1::RectF(std::round(rc.left) + 0.5f, rc.top+0.5f, std::round(rc.right) - 0.5f, rc.bottom-0.5f);
|
|
D2DPenColour(back);
|
|
pRenderTarget->FillRectangle(&rectangle1, pBrush);
|
|
D2DPenColour(fore);
|
|
pRenderTarget->DrawRectangle(&rectangle1, pBrush);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::FillRectangle(PRectangle rc, ColourDesired back) {
|
|
if (pRenderTarget) {
|
|
D2DPenColour(back);
|
|
const D2D1_RECT_F rectangle1 = D2D1::RectF(std::round(rc.left), rc.top, std::round(rc.right), rc.bottom);
|
|
pRenderTarget->FillRectangle(&rectangle1, pBrush);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::FillRectangle(PRectangle rc, Surface &surfacePattern) {
|
|
SurfaceD2D *psurfOther = dynamic_cast<SurfaceD2D *>(&surfacePattern);
|
|
PLATFORM_ASSERT(psurfOther);
|
|
psurfOther->FlushDrawing();
|
|
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(
|
|
D2D1::RectF(rc.left, rc.top, rc.right, rc.bottom),
|
|
pBitmapBrush);
|
|
ReleaseUnknown(pBitmapBrush);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::RoundedRectangle(PRectangle rc, ColourDesired fore, ColourDesired back) {
|
|
if (pRenderTarget) {
|
|
D2D1_ROUNDED_RECT roundedRectFill = {
|
|
D2D1::RectF(rc.left+1.0f, rc.top+1.0f, rc.right-1.0f, rc.bottom-1.0f),
|
|
4, 4};
|
|
D2DPenColour(back);
|
|
pRenderTarget->FillRoundedRectangle(roundedRectFill, pBrush);
|
|
|
|
D2D1_ROUNDED_RECT roundedRect = {
|
|
D2D1::RectF(rc.left + 0.5f, rc.top+0.5f, rc.right - 0.5f, rc.bottom-0.5f),
|
|
4, 4};
|
|
D2DPenColour(fore);
|
|
pRenderTarget->DrawRoundedRectangle(roundedRect, pBrush);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::AlphaRectangle(PRectangle rc, int cornerSize, ColourDesired fill, int alphaFill,
|
|
ColourDesired outline, int alphaOutline, int /* flags*/ ) {
|
|
if (pRenderTarget) {
|
|
if (cornerSize == 0) {
|
|
// When corner size is zero, draw square rectangle to prevent blurry pixels at corners
|
|
const D2D1_RECT_F rectFill = D2D1::RectF(std::round(rc.left) + 1.0f, rc.top + 1.0f, std::round(rc.right) - 1.0f, rc.bottom - 1.0f);
|
|
D2DPenColour(fill, alphaFill);
|
|
pRenderTarget->FillRectangle(rectFill, pBrush);
|
|
|
|
const D2D1_RECT_F rectOutline = D2D1::RectF(std::round(rc.left) + 0.5f, rc.top + 0.5f, std::round(rc.right) - 0.5f, rc.bottom - 0.5f);
|
|
D2DPenColour(outline, alphaOutline);
|
|
pRenderTarget->DrawRectangle(rectOutline, pBrush);
|
|
} else {
|
|
const float cornerSizeF = static_cast<float>(cornerSize);
|
|
D2D1_ROUNDED_RECT roundedRectFill = {
|
|
D2D1::RectF(std::round(rc.left) + 1.0f, rc.top + 1.0f, std::round(rc.right) - 1.0f, rc.bottom - 1.0f),
|
|
cornerSizeF - 1.0f, cornerSizeF - 1.0f };
|
|
D2DPenColour(fill, alphaFill);
|
|
pRenderTarget->FillRoundedRectangle(roundedRectFill, pBrush);
|
|
|
|
D2D1_ROUNDED_RECT roundedRect = {
|
|
D2D1::RectF(std::round(rc.left) + 0.5f, rc.top + 0.5f, std::round(rc.right) - 0.5f, rc.bottom - 0.5f),
|
|
cornerSizeF, cornerSizeF};
|
|
D2DPenColour(outline, alphaOutline);
|
|
pRenderTarget->DrawRoundedRectangle(roundedRect, pBrush);
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
|
|
D2D_COLOR_F ColorFromColourAlpha(ColourAlpha colour) noexcept {
|
|
D2D_COLOR_F col;
|
|
col.r = colour.GetRedComponent();
|
|
col.g = colour.GetGreenComponent();
|
|
col.b = colour.GetBlueComponent();
|
|
col.a = colour.GetAlphaComponent();
|
|
return col;
|
|
}
|
|
|
|
}
|
|
|
|
void SurfaceD2D::GradientRectangle(PRectangle rc, const std::vector<ColourStop> &stops, GradientOptions options) {
|
|
if (pRenderTarget) {
|
|
D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES lgbp;
|
|
lgbp.startPoint = D2D1::Point2F(rc.left, rc.top);
|
|
switch (options) {
|
|
case GradientOptions::leftToRight:
|
|
lgbp.endPoint = D2D1::Point2F(rc.right, rc.top);
|
|
break;
|
|
case GradientOptions::topToBottom:
|
|
default:
|
|
lgbp.endPoint = D2D1::Point2F(rc.left, rc.bottom);
|
|
break;
|
|
}
|
|
|
|
std::vector<D2D1_GRADIENT_STOP> gradientStops;
|
|
for (const ColourStop &stop : stops) {
|
|
gradientStops.push_back({ 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 = D2D1::RectF(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, ColourDesired fore, ColourDesired back) {
|
|
if (pRenderTarget) {
|
|
const FLOAT radius = rc.Width() / 2.0f;
|
|
D2D1_ELLIPSE ellipse = {
|
|
D2D1::Point2F((rc.left + rc.right) / 2.0f, (rc.top + rc.bottom) / 2.0f),
|
|
radius,radius};
|
|
|
|
PenColour(back);
|
|
pRenderTarget->FillEllipse(ellipse, pBrush);
|
|
PenColour(fore);
|
|
pRenderTarget->DrawEllipse(ellipse, pBrush);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::Copy(PRectangle rc, Point from, Surface &surfaceSource) {
|
|
SurfaceD2D &surfOther = dynamic_cast<SurfaceD2D &>(surfaceSource);
|
|
surfOther.FlushDrawing();
|
|
ID2D1Bitmap *pBitmap = nullptr;
|
|
HRESULT hr = surfOther.GetBitmap(&pBitmap);
|
|
if (SUCCEEDED(hr) && pBitmap) {
|
|
const D2D1_RECT_F rcDestination = RectangleFromPRectangle(rc);
|
|
D2D1_RECT_F rcSource = {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);
|
|
hr = pRenderTarget->Flush();
|
|
if (FAILED(hr)) {
|
|
Platform::DebugPrintf("Failed Flush 0x%lx\n", hr);
|
|
}
|
|
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() {
|
|
}
|
|
};
|
|
|
|
/// 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 = 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() 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')) {
|
|
Point 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);
|
|
};
|
|
|
|
FormatAndMetrics *pfm =
|
|
static_cast<FormatAndMetrics *>(screenLine->FontOfPosition(bytePosition)->GetID());
|
|
|
|
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, true);
|
|
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
|
|
FormatAndMetrics *pfm = static_cast<FormatAndMetrics *>(screenLine->FontOfPosition(0)->GetID());
|
|
|
|
if (!pIDWriteFactory || !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, screenLine->Width(), screenLine->Height(), &textLayout);
|
|
if (!SUCCEEDED(hrCreate)) {
|
|
return;
|
|
}
|
|
|
|
// Fill the textLayout chars with their own formats
|
|
FillTextLayoutFormats(screenLine, textLayout, blobs);
|
|
}
|
|
|
|
ScreenLineLayout::~ScreenLineLayout() {
|
|
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(
|
|
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 ? 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 {};
|
|
Point 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];
|
|
Interval selectionInterval;
|
|
|
|
selectionInterval.left = htm.left;
|
|
selectionInterval.right = 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, UINT fuOptions) {
|
|
SetFont(font_);
|
|
|
|
// Use Unicode calls
|
|
const TextWide tbuf(text, unicodeMode, codePageText);
|
|
if (pRenderTarget && pTextFormat && pBrush) {
|
|
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, pTextFormat,
|
|
rc.Width(), rc.Height(), &pTextLayout);
|
|
if (SUCCEEDED(hr)) {
|
|
D2D1_POINT_2F origin = {rc.left, ybase-yAscent};
|
|
pRenderTarget->DrawTextLayout(origin, pTextLayout, pBrush, d2dDrawTextOptions);
|
|
ReleaseUnknown(pTextLayout);
|
|
}
|
|
|
|
if (fuOptions & ETO_CLIPPED) {
|
|
pRenderTarget->PopAxisAlignedClip();
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextNoClip(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text,
|
|
ColourDesired fore, ColourDesired back) {
|
|
if (pRenderTarget) {
|
|
FillRectangle(rc, back);
|
|
D2DPenColour(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, ETO_OPAQUE);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextClipped(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text,
|
|
ColourDesired fore, ColourDesired back) {
|
|
if (pRenderTarget) {
|
|
FillRectangle(rc, back);
|
|
D2DPenColour(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, ETO_OPAQUE | ETO_CLIPPED);
|
|
}
|
|
}
|
|
|
|
void SurfaceD2D::DrawTextTransparent(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text,
|
|
ColourDesired fore) {
|
|
// Avoid drawing spaces in transparent mode
|
|
for (const char ch : text) {
|
|
if (ch != ' ') {
|
|
if (pRenderTarget) {
|
|
D2DPenColour(fore);
|
|
DrawTextCommon(rc, font_, ybase, text, 0);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::WidthText(Font &font_, std::string_view text) {
|
|
FLOAT width = 1.0;
|
|
SetFont(font_);
|
|
const TextWide tbuf(text, unicodeMode, codePageText);
|
|
if (pIDWriteFactory && pTextFormat) {
|
|
// Create a layout
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
const HRESULT hr = pIDWriteFactory->CreateTextLayout(tbuf.buffer, tbuf.tlen, 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::MeasureWidths(Font &font_, std::string_view text, XYPOSITION *positions) {
|
|
SetFont(font_);
|
|
if (!pIDWriteFactory || !pTextFormat) {
|
|
// SetFont failed or no access to DirectWrite so give up.
|
|
return;
|
|
}
|
|
const TextWide tbuf(text, unicodeMode, 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, 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
|
|
FLOAT position = 0.0f;
|
|
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 (unicodeMode) {
|
|
// Map the widths given for UTF-16 characters back onto the UTF-8 input string
|
|
int ui=0;
|
|
size_t i=0;
|
|
while (ui<tbuf.tlen) {
|
|
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];
|
|
}
|
|
ui++;
|
|
}
|
|
XYPOSITION lastPos = 0.0f;
|
|
if (i > 0)
|
|
lastPos = positions[i-1];
|
|
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::Ascent(Font &font_) {
|
|
SetFont(font_);
|
|
return std::ceil(yAscent);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::Descent(Font &font_) {
|
|
SetFont(font_);
|
|
return std::ceil(yDescent);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::InternalLeading(Font &font_) {
|
|
SetFont(font_);
|
|
return std::floor(yInternalLeading);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::Height(Font &font_) {
|
|
return Ascent(font_) + Descent(font_);
|
|
}
|
|
|
|
XYPOSITION SurfaceD2D::AverageCharWidth(Font &font_) {
|
|
FLOAT width = 1.0;
|
|
SetFont(font_);
|
|
if (pIDWriteFactory && pTextFormat) {
|
|
// Create a layout
|
|
IDWriteTextLayout *pTextLayout = nullptr;
|
|
const WCHAR wszAllAlpha[] = L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
|
|
const size_t lenAllAlpha = wcslen(wszAllAlpha);
|
|
const HRESULT hr = pIDWriteFactory->CreateTextLayout(wszAllAlpha, static_cast<UINT32>(lenAllAlpha),
|
|
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::FlushCachedState() {
|
|
}
|
|
|
|
void SurfaceD2D::SetUnicodeMode(bool unicodeMode_) {
|
|
unicodeMode=unicodeMode_;
|
|
}
|
|
|
|
void SurfaceD2D::SetDBCSMode(int codePage_) {
|
|
// No action on window as automatically handled by system.
|
|
codePage = codePage_;
|
|
}
|
|
|
|
void SurfaceD2D::SetBidiR2L(bool) {
|
|
}
|
|
|
|
#endif
|
|
|
|
Surface *Surface::Allocate(int technology) {
|
|
#if defined(USE_D2D)
|
|
if (technology == SCWIN_TECH_GDI)
|
|
return new SurfaceGDI;
|
|
else
|
|
return new SurfaceD2D;
|
|
#else
|
|
return new SurfaceGDI;
|
|
#endif
|
|
}
|
|
|
|
Window::~Window() {
|
|
}
|
|
|
|
void Window::Destroy() {
|
|
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 {
|
|
|
|
static 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);
|
|
}
|
|
|
|
void Window::SetFont(Font &font) {
|
|
SetWindowFont(HwndFromWindowID(wid), font.GetID(), 0);
|
|
}
|
|
|
|
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 cursorText:
|
|
::SetCursor(::LoadCursor(NULL,IDC_IBEAM));
|
|
break;
|
|
case cursorUp:
|
|
::SetCursor(::LoadCursor(NULL,IDC_UPARROW));
|
|
break;
|
|
case cursorWait:
|
|
::SetCursor(::LoadCursor(NULL,IDC_WAIT));
|
|
break;
|
|
case cursorHoriz:
|
|
::SetCursor(::LoadCursor(NULL,IDC_SIZEWE));
|
|
break;
|
|
case cursorVert:
|
|
::SetCursor(::LoadCursor(NULL,IDC_SIZENS));
|
|
break;
|
|
case cursorHand:
|
|
::SetCursor(::LoadCursor(NULL,IDC_HAND));
|
|
break;
|
|
case cursorReverseArrow:
|
|
case cursorArrow:
|
|
case cursorInvalid: // 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() {
|
|
}
|
|
|
|
class ListBoxX : public ListBox {
|
|
int lineHeight;
|
|
FontID fontCopy;
|
|
int 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
|
|
|
|
HWND GetHWND() const noexcept;
|
|
void AppendListItem(const char *text, const char *numword);
|
|
static void AdjustWindowRect(PRectangle *rc, UINT dpi) 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) noexcept;
|
|
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(0), 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() override {
|
|
if (fontCopy) {
|
|
::DeleteObject(fontCopy);
|
|
fontCopy = 0;
|
|
}
|
|
}
|
|
void SetFont(Font &font) override;
|
|
void Create(Window &parent_, int ctrlID_, Point location_, int lineHeight_, bool unicodeMode_, int technology_) override;
|
|
void SetAverageCharWidth(int width) override;
|
|
void SetVisibleRows(int rows) override;
|
|
int GetVisibleRows() const override;
|
|
PRectangle GetDesiredRect() override;
|
|
int CaretFromEdge() override;
|
|
void Clear() 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;
|
|
void GetValue(int n, char *value, int len) 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 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);
|
|
};
|
|
|
|
ListBox *ListBox::Allocate() {
|
|
ListBoxX *lb = new ListBoxX();
|
|
return lb;
|
|
}
|
|
|
|
void ListBoxX::Create(Window &parent_, int ctrlID_, Point location_, int lineHeight_, bool unicodeMode_, int 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 | WS_THICKFRAME,
|
|
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(Font &font) {
|
|
if (font.GetID()) {
|
|
if (fontCopy) {
|
|
::DeleteObject(fontCopy);
|
|
fontCopy = 0;
|
|
}
|
|
FormatAndMetrics *pfm = static_cast<FormatAndMetrics *>(font.GetID());
|
|
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, unicodeMode);
|
|
::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() {
|
|
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;
|
|
}
|
|
|
|
void ListBoxX::GetValue(int n, char *value, int len) {
|
|
const ListItemData item = lti.Get(n);
|
|
strncpy(value, item.text, len);
|
|
value[len-1] = '\0';
|
|
}
|
|
|
|
void ListBoxX::RegisterImage(int type, const char *xpm_data) {
|
|
XPM xpmImage(xpm_data);
|
|
images.Add(type, new RGBAImage(xpmImage));
|
|
}
|
|
|
|
void ListBoxX::RegisterRGBAImage(int type, int width, int height, const unsigned char *pixelsImage) {
|
|
images.Add(type, new RGBAImage(width, height, 1.0, pixelsImage));
|
|
}
|
|
|
|
void ListBoxX::ClearRegisteredImages() {
|
|
images.Clear();
|
|
}
|
|
|
|
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
|
|
::FillRect(pDrawItem->hDC, &rcImage, reinterpret_cast<HBRUSH>(COLOR_WINDOW+1));
|
|
::FillRect(pDrawItem->hDC, &rcBox, reinterpret_cast<HBRUSH>(COLOR_HIGHLIGHT+1));
|
|
::SetBkColor(pDrawItem->hDC, ::GetSysColor(COLOR_HIGHLIGHT));
|
|
::SetTextColor(pDrawItem->hDC, ::GetSysColor(COLOR_HIGHLIGHTTEXT));
|
|
} else {
|
|
::FillRect(pDrawItem->hDC, &pDrawItem->rcItem, reinterpret_cast<HBRUSH>(COLOR_WINDOW+1));
|
|
::SetBkColor(pDrawItem->hDC, ::GetSysColor(COLOR_WINDOW));
|
|
::SetTextColor(pDrawItem->hDC, ::GetSysColor(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, unicodeMode);
|
|
::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 == SCWIN_TECH_GDI) {
|
|
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::AdjustWindowRect(PRectangle *rc, UINT dpi) noexcept {
|
|
RECT rcw = RectFromPRectangle(*rc);
|
|
if (fnAdjustWindowRectExForDpi) {
|
|
fnAdjustWindowRectExForDpi(&rcw, WS_THICKFRAME, false, WS_EX_WINDOWEDGE, dpi);
|
|
} else {
|
|
::AdjustWindowRectEx(&rcw, WS_THICKFRAME, 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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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) noexcept {
|
|
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 };
|
|
::FillRect(bitmapDC, &rc, reinterpret_cast<HBRUSH>(COLOR_WINDOW+1));
|
|
// 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);
|
|
const int item = LOWORD(lResult);
|
|
if (HIWORD(lResult) == 0 && item >= 0) {
|
|
ListBox_SetCurSel(hWnd, item);
|
|
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;
|
|
}
|
|
|
|
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 = 1;
|
|
if (nRows > 1) {
|
|
linesToScroll = nRows - 1;
|
|
}
|
|
if (linesToScroll > 3) {
|
|
linesToScroll = 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() {
|
|
if (mid)
|
|
::DestroyMenu(static_cast<HMENU>(mid));
|
|
mid = 0;
|
|
}
|
|
|
|
void Menu::Show(Point pt, 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();
|
|
}
|
|
|
|
class DynamicLibraryImpl : public DynamicLibrary {
|
|
protected:
|
|
HMODULE h;
|
|
public:
|
|
explicit DynamicLibraryImpl(const char *modulePath) noexcept {
|
|
h = ::LoadLibraryA(modulePath);
|
|
}
|
|
|
|
~DynamicLibraryImpl() override {
|
|
if (h)
|
|
::FreeLibrary(h);
|
|
}
|
|
|
|
// Use GetProcAddress to get a pointer to the relevant function.
|
|
Function FindFunction(const char *name) noexcept override {
|
|
if (h) {
|
|
// Use memcpy as it doesn't invoke undefined or conditionally defined behaviour.
|
|
FARPROC fp = ::GetProcAddress(h, name);
|
|
Function f = nullptr;
|
|
static_assert(sizeof(f) == sizeof(fp));
|
|
memcpy(&f, &fp, sizeof(f));
|
|
return f;
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
bool IsValid() noexcept override {
|
|
return h != NULL;
|
|
}
|
|
};
|
|
|
|
DynamicLibrary *DynamicLibrary::Load(const char *modulePath) {
|
|
return static_cast<DynamicLibrary *>(new DynamicLibraryImpl(modulePath));
|
|
}
|
|
|
|
ColourDesired Platform::Chrome() {
|
|
return ColourDesired(::GetSysColor(COLOR_3DFACE));
|
|
}
|
|
|
|
ColourDesired Platform::ChromeHighlight() {
|
|
return ColourDesired(::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) {
|
|
::OutputDebugStringA(s);
|
|
}
|
|
|
|
//#define TRACE
|
|
|
|
#ifdef TRACE
|
|
void Platform::DebugPrintf(const char *format, ...) {
|
|
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 *, ...) {
|
|
}
|
|
#endif
|
|
|
|
static bool assertionPopUps = true;
|
|
|
|
bool Platform::ShowAssertionPopUps(bool assertionPopUps_) {
|
|
const bool ret = assertionPopUps;
|
|
assertionPopUps = assertionPopUps_;
|
|
return ret;
|
|
}
|
|
|
|
void Platform::Assert(const char *c, const char *file, int line) {
|
|
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(defaultRenderingParams);
|
|
ReleaseUnknown(customClearTypeRenderingParams);
|
|
ReleaseUnknown(pIDWriteFactory);
|
|
ReleaseUnknown(pD2DFactory);
|
|
if (hDLLDWrite) {
|
|
FreeLibrary(hDLLDWrite);
|
|
hDLLDWrite = {};
|
|
}
|
|
if (hDLLD2D) {
|
|
FreeLibrary(hDLLD2D);
|
|
hDLLD2D = {};
|
|
}
|
|
}
|
|
#endif
|
|
if (!fromDllMain && hDLLShcore) {
|
|
FreeLibrary(hDLLShcore);
|
|
hDLLShcore = {};
|
|
}
|
|
ListBoxX_Unregister();
|
|
}
|
|
|
|
}
|