rainmeter-studio/Common/Gfx/CanvasGDIP.h

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/*
Copyright (C) 2013 Birunthan Mohanathas
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
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#ifndef RM_GFX_CANVASGDIP_H_
#define RM_GFX_CANVASGDIP_H_
#include "Canvas.h"
#include "FontCollectionGDIP.h"
#include "TextFormatGDIP.h"
#include <memory>
#include <string>
#include <GdiPlus.h>
namespace Gfx {
// Provides a GDI+ implementation of Canvas.
class CanvasGDIP : public Canvas
{
public:
virtual void Resize(int w, int h);
virtual bool BeginDraw();
virtual void EndDraw();
virtual Gdiplus::Graphics& BeginGdiplusContext() override;
virtual void EndGdiplusContext() override;
virtual HDC GetDC() override;
virtual void ReleaseDC(HDC dc) override;
virtual FontCollection* CreateFontCollection() override { return new FontCollectionGDIP(); }
virtual TextFormat* CreateTextFormat() override { return new TextFormatGDIP(); }
virtual bool IsTransparentPixel(int x, int y) override;
virtual void SetTransform(const Gdiplus::Matrix& matrix) override;
virtual void ResetTransform() override;
virtual void RotateTransform(float angle, float x, float y, float dx, float dy) override;
virtual void SetAntiAliasing(bool enable) override;
virtual void SetTextAntiAliasing(bool enable) override;
virtual void Clear(const Gdiplus::Color& color) override;
virtual void DrawTextW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect, const Gdiplus::SolidBrush& brush) override;
virtual bool MeasureTextW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect) override;
virtual bool MeasureTextLinesW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect, UINT& lines) override;
virtual void DrawBitmap(Gdiplus::Bitmap* bitmap, const Gdiplus::Rect& dstRect, const Gdiplus::Rect& srcRect) override;
virtual void FillRectangle(Gdiplus::Rect& rect, const Gdiplus::SolidBrush& brush) override;
private:
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friend class Canvas;
CanvasGDIP();
~CanvasGDIP();
CanvasGDIP(const CanvasGDIP& other) {}
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void Dispose();
std::unique_ptr<Gdiplus::Graphics> m_Graphics;
std::unique_ptr<Gdiplus::Bitmap> m_Bitmap;
HBITMAP m_DIBSection;
LPDWORD m_DIBSectionPixels;
//static ULONG_PTR c_GdiToken;
};
} // namespace Gfx
#endif