vcl/inc/qt5/QtGraphics.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
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   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <sal/config.h>
  23
  24 #include <salgdi.hxx>
  25
  26 #include <memory>
  27 #include <optional>
  28
  29 #include <QtGui/QPainter>
  30 #include <QtGui/QPainterPath>
  31 #include <QtGui/QRegion>
  32
  33 #include "QtGraphicsBase.hxx"
  34
  35 namespace vcl::font
  36 {
  37 class PhysicalFontCollection;
  38 }
  39 class QImage;
  40 class QPushButton;
  41 class QtFont;
  42 class QtFontFace;
  43 class QtFrame;
  44 class QtPainter;
  45
  46 class QtGraphicsBackend final : public SalGraphicsImpl, public QtGraphicsBase
  47 {
  48     friend class QtPainter;
  49
  50     QtFrame* m_pFrame;
  51     QImage* m_pQImage;
  52     QRegion m_aClipRegion;
  53     QPainterPath m_aClipPath;
  54     std::optional<Color> m_oLineColor;
  55     std::optional<Color> m_oFillColor;
  56     QPainter::CompositionMode m_eCompositionMode;
  57
  58 public:
  59     QtGraphicsBackend(QtFrame* pFrame, QImage* pQImage);
  60     ~QtGraphicsBackend() override;
  61
  62     QImage* getQImage() { return m_pQImage; }
  63
  64     void setQImage(QImage* pQImage) { m_pQImage = pQImage; }
  65
  66     OUString getRenderBackendName() const override { return u"qt"_ustr; }
  67
  68     void setClipRegion(vcl::Region const& rRegion) override;
  69     void ResetClipRegion() override;
  70
  71     sal_uInt16 GetBitCount() const override;
  72
  73     tools::Long GetGraphicsWidth() const override;
  74
  75     void SetLineColor() override;
  76     void SetLineColor(Color nColor) override;
  77     void SetFillColor() override;
  78     void SetFillColor(Color nColor) override;
  79     void SetXORMode(bool bSet, bool bInvertOnly) override;
  80     void SetROPLineColor(SalROPColor nROPColor) override;
  81     void SetROPFillColor(SalROPColor nROPColor) override;
  82
  83     void drawPixel(tools::Long nX, tools::Long nY) override;
  84     void drawPixel(tools::Long nX, tools::Long nY, Color nColor) override;
  85
  86     void drawLine(tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2) override;
  87     void drawRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight) override;
  88     void drawPolyLine(sal_uInt32 nPoints, const Point* pPointArray) override;
  89     void drawPolygon(sal_uInt32 nPoints, const Point* pPointArray) override;
  90     void drawPolyPolygon(sal_uInt32 nPoly, const sal_uInt32* pPoints,
  91                          const Point** pPointArray) override;
  92
  93     void drawPolyPolygon(const basegfx::B2DHomMatrix& rObjectToDevice,
  94                          const basegfx::B2DPolyPolygon&, double fTransparency) override;
  95
  96     bool drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice, const basegfx::B2DPolygon&,
  97                       double fTransparency, double fLineWidth, const std::vector<double>* pStroke,
  98                       basegfx::B2DLineJoin, css::drawing::LineCap, double fMiterMinimumAngle,
  99                       bool bPixelSnapHairline) override;
 100
 101     bool drawPolyLineBezier(sal_uInt32 nPoints, const Point* pPointArray,
 102                             const PolyFlags* pFlagArray) override;
 103
 104     bool drawPolygonBezier(sal_uInt32 nPoints, const Point* pPointArray,
 105                            const PolyFlags* pFlagArray) override;
 106
 107     bool drawPolyPolygonBezier(sal_uInt32 nPoly, const sal_uInt32* pPoints,
 108                                const Point* const* pPointArray,
 109                                const PolyFlags* const* pFlagArray) override;
 110
 111     void copyArea(tools::Long nDestX, tools::Long nDestY, tools::Long nSrcX, tools::Long nSrcY,
 112                   tools::Long nSrcWidth, tools::Long nSrcHeight, bool bWindowInvalidate) override;
 113
 114     void copyBits(const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics) override;
 115
 116     void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap) override;
 117
 118     void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
 119                     const SalBitmap& rMaskBitmap) override;
 120
 121     void drawMask(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
 122                   Color nMaskColor) override;
 123
 124     std::shared_ptr<SalBitmap> getBitmap(tools::Long nX, tools::Long nY, tools::Long nWidth,
 125                                          tools::Long nHeight) override;
 126
 127     Color getPixel(tools::Long nX, tools::Long nY) override;
 128
 129     void invert(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 130                 SalInvert nFlags) override;
 131
 132     void invert(sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags) override;
 133
 134     bool blendBitmap(const SalTwoRect&, const SalBitmap& rBitmap) override;
 135
 136     bool blendAlphaBitmap(const SalTwoRect&, const SalBitmap& rSrcBitmap,
 137                           const SalBitmap& rMaskBitmap, const SalBitmap& rAlphaBitmap) override;
 138
 139     bool drawAlphaBitmap(const SalTwoRect&, const SalBitmap& rSourceBitmap,
 140                          const SalBitmap& rAlphaBitmap) override;
 141
 142     bool drawTransformedBitmap(const basegfx::B2DPoint& rNull, const basegfx::B2DPoint& rX,
 143                                const basegfx::B2DPoint& rY, const SalBitmap& rSourceBitmap,
 144                                const SalBitmap* pAlphaBitmap, double fAlpha) override;
 145
 146     bool drawAlphaRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 147                        sal_uInt8 nTransparency) override;
 148
 149     bool drawGradient(const tools::PolyPolygon& rPolygon, const Gradient& rGradient) override;
 150     bool implDrawGradient(basegfx::B2DPolyPolygon const& rPolyPolygon,
 151                           SalGradient const& rGradient) override;
 152
 153     bool supportsOperation(OutDevSupportType eType) const override;
 154
 155 private:
 156     void drawScaledImage(const SalTwoRect& rPosAry, const QImage& rImage);
 157 };
 158
 159 class QtGraphics final : public SalGraphicsAutoDelegateToImpl, public QtGraphicsBase
 160 {
 161     friend class QtBitmap;
 162
 163     std::unique_ptr<QtGraphicsBackend> m_pBackend;
 164
 165     QtFrame* m_pFrame;
 166
 167     rtl::Reference<QtFont> m_pTextStyle[MAX_FALLBACK];
 168     Color m_aTextColor;
 169
 170     QtGraphics(QtFrame* pFrame, QImage* pQImage);
 171
 172     void drawScaledImage(const SalTwoRect& rPosAry, const QImage& rImage);
 173
 174     void handleDamage(const tools::Rectangle&) override;
 175
 176 public:
 177     QtGraphics(QtFrame* pFrame)
 178         : QtGraphics(pFrame, nullptr)
 179     {
 180     }
 181     QtGraphics(QImage* pQImage)
 182         : QtGraphics(nullptr, pQImage)
 183     {
 184     }
 185     virtual ~QtGraphics() override;
 186
 187     QImage* getQImage() { return m_pBackend->getQImage(); }
 188
 189     void ChangeQImage(QImage* pImage);
 190
 191     virtual SalGraphicsImpl* GetImpl() const override;
 192     virtual SystemGraphicsData GetGraphicsData() const override;
 193     virtual OUString getRenderBackendName() const override
 194     {
 195         return m_pBackend->getRenderBackendName();
 196     }
 197
 198 #if ENABLE_CAIRO_CANVAS
 199     virtual bool SupportsCairo() const override;
 200     virtual cairo::SurfaceSharedPtr
 201     CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const override;
 202     virtual cairo::SurfaceSharedPtr CreateSurface(const OutputDevice& rRefDevice, int x, int y,
 203                                                   int width, int height) const override;
 204     virtual cairo::SurfaceSharedPtr CreateBitmapSurface(const OutputDevice& rRefDevice,
 205                                                         const BitmapSystemData& rData,
 206                                                         const Size& rSize) const override;
 207     virtual css::uno::Any GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface,
 208                                                  const basegfx::B2ISize& rSize) const override;
 209 #endif // ENABLE_CAIRO_CANVAS
 210
 211     // GDI
 212
 213     virtual void GetResolution(sal_Int32& rDPIX, sal_Int32& rDPIY) override;
 214
 215     // Text rendering + font support
 216
 217     virtual void SetTextColor(Color nColor) override;
 218     virtual void SetFont(LogicalFontInstance*, int nFallbackLevel) override;
 219     virtual void GetFontMetric(FontMetricDataRef&, int nFallbackLevel) override;
 220     virtual FontCharMapRef GetFontCharMap() const override;
 221     virtual bool GetFontCapabilities(vcl::FontCapabilities& rFontCapabilities) const override;
 222     virtual void GetDevFontList(vcl::font::PhysicalFontCollection*) override;
 223     virtual void ClearDevFontCache() override;
 224     virtual bool AddTempDevFont(vcl::font::PhysicalFontCollection*, const OUString& rFileURL,
 225                                 const OUString& rFontName) override;
 226
 227     virtual std::unique_ptr<GenericSalLayout> GetTextLayout(int nFallbackLevel) override;
 228     virtual void DrawTextLayout(const GenericSalLayout&) override;
 229 };
 230
 231 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */