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109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
/*
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Copyright (C) 2013 Birunthan Mohanathas
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef RM_GFX_CANVASD2D_H_
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#define RM_GFX_CANVASD2D_H_
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#include "Canvas.h"
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#include "FontCollectionD2D.h"
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#include "TextFormatD2D.h"
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#include "WICBitmapDIB.h"
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#include <string>
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#include <GdiPlus.h>
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#include <d2d1.h>
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#include <d2d1helper.h>
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#include <dwrite.h>
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#include <wincodec.h>
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namespace Gfx {
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// Provides a Direct2D/DirectWrite implementation of Canvas.
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class CanvasD2D : public Canvas
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{
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public:
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CanvasD2D();
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~CanvasD2D();
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virtual void Resize(int w, int h);
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virtual bool BeginDraw();
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virtual void EndDraw();
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virtual Gdiplus::Graphics& BeginGdiplusContext() override;
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virtual void EndGdiplusContext() override;
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virtual HDC GetDC() override;
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virtual void ReleaseDC(HDC dc) override;
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virtual FontCollection* CreateFontCollection() override { return new FontCollectionD2D(); }
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virtual TextFormat* CreateTextFormat() override { return new TextFormatD2D(); }
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virtual bool IsTransparentPixel(int x, int y) override;
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virtual void SetTransform(const Gdiplus::Matrix& matrix) override;
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virtual void ResetTransform() override;
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virtual void RotateTransform(float angle, float x, float y, float dx, float dy) override;
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virtual void SetAntiAliasing(bool enable) override;
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virtual void SetTextAntiAliasing(bool enable) override;
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virtual void Clear(const Gdiplus::Color& color) override;
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virtual void DrawTextW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect, const Gdiplus::SolidBrush& brush) override;
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virtual bool MeasureTextW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect) override;
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virtual bool MeasureTextLinesW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect, UINT& lines) override;
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virtual void DrawBitmap(Gdiplus::Bitmap* bitmap, const Gdiplus::Rect& dstRect, const Gdiplus::Rect& srcRect) override;
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virtual void FillRectangle(Gdiplus::Rect& rect, const Gdiplus::SolidBrush& brush) override;
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private:
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friend class TextFormatD2D;
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CanvasD2D(const CanvasD2D& other) {}
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static bool Initialize();
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static void Finalize();
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void Dispose();
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bool BeginTargetDraw();
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void EndTargetDraw();
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// Retrieves current GDI+ transform (if any) and converts to a D2D Matrix
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D2D1_MATRIX_3X2_F GetCurrentTransform();
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ID2D1RenderTarget* m_Target;
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WICBitmapDIB m_Bitmap;
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// GDI+ objects that share the pixel data of m_Bitmap.
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Gdiplus::Graphics* m_GdipGraphics;
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Gdiplus::Bitmap* m_GdipBitmap;
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bool m_TextAntiAliasing;
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static UINT c_Instances;
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static ID2D1Factory* c_D2DFactory;
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static IDWriteFactory* c_DWFactory;
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static IDWriteGdiInterop* c_DWGDIInterop;
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static IWICImagingFactory* c_WICFactory;
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};
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} // namespace Gfx
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#endif |