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// Scintilla source code edit control
/** @file PlatWin.h
** Implementation of platform facilities on Windows.
**/
// Copyright 1998-2011 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#ifndef PLATWIN_H
#define PLATWIN_H
namespace Scintilla::Internal {
#ifndef USER_DEFAULT_SCREEN_DPI
#define USER_DEFAULT_SCREEN_DPI 96
#endif
extern void Platform_Initialise(void *hInstance) noexcept;
extern void Platform_Finalise(bool fromDllMain) noexcept;
constexpr RECT RectFromPRectangle(PRectangle prc) noexcept {
const RECT rc = { static_cast<LONG>(prc.left), static_cast<LONG>(prc.top),
static_cast<LONG>(prc.right), static_cast<LONG>(prc.bottom) };
return rc;
}
constexpr POINT POINTFromPoint(Point pt) noexcept {
return POINT{ static_cast<LONG>(pt.x), static_cast<LONG>(pt.y) };
}
constexpr Point PointFromPOINT(POINT pt) noexcept {
return Point::FromInts(pt.x, pt.y);
}
constexpr SIZE SizeOfRect(RECT rc) noexcept {
return { rc.right - rc.left, rc.bottom - rc.top };
}
constexpr HWND HwndFromWindowID(WindowID wid) noexcept {
return static_cast<HWND>(wid);
}
inline HWND HwndFromWindow(const Window &w) noexcept {
return HwndFromWindowID(w.GetID());
}
void *PointerFromWindow(HWND hWnd) noexcept;
void SetWindowPointer(HWND hWnd, void *ptr) noexcept;
HMONITOR MonitorFromWindowHandleScaling(HWND hWnd) noexcept;
UINT DpiForWindow(WindowID wid) noexcept;
float GetDeviceScaleFactorWhenGdiScalingActive(HWND hWnd) noexcept;
int SystemMetricsForDpi(int nIndex, UINT dpi) noexcept;
HCURSOR LoadReverseArrowCursor(UINT dpi) noexcept;
class MouseWheelDelta {
int wheelDelta = 0;
public:
bool Accumulate(WPARAM wParam) noexcept {
wheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
return std::abs(wheelDelta) >= WHEEL_DELTA;
}
int Actions() noexcept {
const int actions = wheelDelta / WHEEL_DELTA;
wheelDelta = wheelDelta % WHEEL_DELTA;
return actions;
}
};
#if defined(USE_D2D)
extern bool LoadD2D() noexcept;
extern ID2D1Factory1 *pD2DFactory;
extern IDWriteFactory1 *pIDWriteFactory;
using DCRenderTarget = ComPtr<ID2D1DCRenderTarget>;
using D3D11Device = ComPtr<ID3D11Device1>;
HRESULT CreateDCRenderTarget(const D2D1_RENDER_TARGET_PROPERTIES *renderTargetProperties, DCRenderTarget &dcRT) noexcept;
extern HRESULT CreateD3D(D3D11Device &device) noexcept;
using WriteRenderingParams = ComPtr<IDWriteRenderingParams1>;
struct RenderingParams {
WriteRenderingParams defaultRenderingParams;
WriteRenderingParams customRenderingParams;
};
struct ISetRenderingParams {
virtual void SetRenderingParams(std::shared_ptr<RenderingParams> renderingParams_) = 0;
};
#endif
}
#endif
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