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88 lines
2.4 KiB
88 lines
2.4 KiB
// Scintilla source code edit control
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/** @file PlatWin.h
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** Implementation of platform facilities on Windows.
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**/
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// Copyright 1998-2011 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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#ifndef PLATWIN_H
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#define PLATWIN_H
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namespace Scintilla::Internal {
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#ifndef USER_DEFAULT_SCREEN_DPI
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#define USER_DEFAULT_SCREEN_DPI 96
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#endif
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extern void Platform_Initialise(void *hInstance) noexcept;
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extern void Platform_Finalise(bool fromDllMain) noexcept;
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constexpr RECT RectFromPRectangle(PRectangle prc) noexcept {
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const RECT rc = { static_cast<LONG>(prc.left), static_cast<LONG>(prc.top),
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static_cast<LONG>(prc.right), static_cast<LONG>(prc.bottom) };
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return rc;
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}
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constexpr POINT POINTFromPoint(Point pt) noexcept {
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return POINT{ static_cast<LONG>(pt.x), static_cast<LONG>(pt.y) };
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}
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constexpr Point PointFromPOINT(POINT pt) noexcept {
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return Point::FromInts(pt.x, pt.y);
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}
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constexpr HWND HwndFromWindowID(WindowID wid) noexcept {
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return static_cast<HWND>(wid);
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}
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inline HWND HwndFromWindow(const Window &w) noexcept {
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return HwndFromWindowID(w.GetID());
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}
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void *PointerFromWindow(HWND hWnd) noexcept;
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void SetWindowPointer(HWND hWnd, void *ptr) noexcept;
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HMONITOR MonitorFromWindowHandleScaling(HWND hWnd) noexcept;
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UINT DpiForWindow(WindowID wid) noexcept;
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float GetDeviceScaleFactorWhenGdiScalingActive(HWND hWnd) noexcept;
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int SystemMetricsForDpi(int nIndex, UINT dpi) noexcept;
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constexpr int defaultCursorBaseSize = 32;
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HCURSOR LoadReverseArrowCursor(UINT dpi, int cursorBaseSize) noexcept;
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class MouseWheelDelta {
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int wheelDelta = 0;
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public:
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bool Accumulate(WPARAM wParam) noexcept {
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wheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
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return std::abs(wheelDelta) >= WHEEL_DELTA;
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}
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int Actions() noexcept {
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const int actions = wheelDelta / WHEEL_DELTA;
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wheelDelta = wheelDelta % WHEEL_DELTA;
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return actions;
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}
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};
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#if defined(USE_D2D)
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extern bool LoadD2D();
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extern ID2D1Factory *pD2DFactory;
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extern IDWriteFactory *pIDWriteFactory;
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struct RenderingParams {
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std::unique_ptr<IDWriteRenderingParams, UnknownReleaser> defaultRenderingParams;
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std::unique_ptr<IDWriteRenderingParams, UnknownReleaser> customRenderingParams;
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};
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struct ISetRenderingParams {
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virtual void SetRenderingParams(std::shared_ptr<RenderingParams> renderingParams_) = 0;
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};
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#endif
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}
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#endif
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