vcl/inc/qt5/QtGraphics.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   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/.
   8  *
   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     void Init() override {}
  63
  64     QImage* getQImage() { return m_pQImage; }
  65
  66     void setQImage(QImage* pQImage) { m_pQImage = pQImage; }
  67
  68     void freeResources() override {}
  69
  70     OUString getRenderBackendName() const override { return "qt5"; }
  71
  72     void setClipRegion(vcl::Region const& rRegion) override;
  73     void ResetClipRegion() override;
  74
  75     sal_uInt16 GetBitCount() const override;
  76
  77     tools::Long GetGraphicsWidth() const override;
  78
  79     void SetLineColor() override;
  80     void SetLineColor(Color nColor) override;
  81     void SetFillColor() override;
  82     void SetFillColor(Color nColor) override;
  83     void SetXORMode(bool bSet, bool bInvertOnly) override;
  84     void SetROPLineColor(SalROPColor nROPColor) override;
  85     void SetROPFillColor(SalROPColor nROPColor) override;
  86
  87     void drawPixel(tools::Long nX, tools::Long nY) override;
  88     void drawPixel(tools::Long nX, tools::Long nY, Color nColor) override;
  89
  90     void drawLine(tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2) override;
  91     void drawRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight) override;
  92     void drawPolyLine(sal_uInt32 nPoints, const Point* pPointArray) override;
  93     void drawPolygon(sal_uInt32 nPoints, const Point* pPointArray) override;
  94     void drawPolyPolygon(sal_uInt32 nPoly, const sal_uInt32* pPoints,
  95                          const Point** pPointArray) override;
  96
  97     void drawPolyPolygon(const basegfx::B2DHomMatrix& rObjectToDevice,
  98                          const basegfx::B2DPolyPolygon&, double fTransparency) override;
  99
 100     bool drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice, const basegfx::B2DPolygon&,
 101                       double fTransparency, double fLineWidth, const std::vector<double>* pStroke,
 102                       basegfx::B2DLineJoin, css::drawing::LineCap, double fMiterMinimumAngle,
 103                       bool bPixelSnapHairline) override;
 104
 105     bool drawPolyLineBezier(sal_uInt32 nPoints, const Point* pPointArray,
 106                             const PolyFlags* pFlagArray) override;
 107
 108     bool drawPolygonBezier(sal_uInt32 nPoints, const Point* pPointArray,
 109                            const PolyFlags* pFlagArray) override;
 110
 111     bool drawPolyPolygonBezier(sal_uInt32 nPoly, const sal_uInt32* pPoints,
 112                                const Point* const* pPointArray,
 113                                const PolyFlags* const* pFlagArray) override;
 114
 115     void copyArea(tools::Long nDestX, tools::Long nDestY, tools::Long nSrcX, tools::Long nSrcY,
 116                   tools::Long nSrcWidth, tools::Long nSrcHeight, bool bWindowInvalidate) override;
 117
 118     void copyBits(const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics) override;
 119
 120     void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap) override;
 121
 122     void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
 123                     const SalBitmap& rMaskBitmap) override;
 124
 125     void drawMask(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
 126                   Color nMaskColor) override;
 127
 128     std::shared_ptr<SalBitmap> getBitmap(tools::Long nX, tools::Long nY, tools::Long nWidth,
 129                                          tools::Long nHeight) override;
 130
 131     Color getPixel(tools::Long nX, tools::Long nY) override;
 132
 133     void invert(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 134                 SalInvert nFlags) override;
 135
 136     void invert(sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags) override;
 137
 138     bool drawEPS(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 139                  void* pPtr, sal_uInt32 nSize) override;
 140
 141     bool blendBitmap(const SalTwoRect&, const SalBitmap& rBitmap) override;
 142
 143     bool blendAlphaBitmap(const SalTwoRect&, const SalBitmap& rSrcBitmap,
 144                           const SalBitmap& rMaskBitmap, const SalBitmap& rAlphaBitmap) override;
 145
 146     bool drawAlphaBitmap(const SalTwoRect&, const SalBitmap& rSourceBitmap,
 147                          const SalBitmap& rAlphaBitmap) override;
 148
 149     bool drawTransformedBitmap(const basegfx::B2DPoint& rNull, const basegfx::B2DPoint& rX,
 150                                const basegfx::B2DPoint& rY, const SalBitmap& rSourceBitmap,
 151                                const SalBitmap* pAlphaBitmap, double fAlpha) override;
 152
 153     bool hasFastDrawTransformedBitmap() const override;
 154
 155     bool drawAlphaRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 156                        sal_uInt8 nTransparency) override;
 157
 158     bool drawGradient(const tools::PolyPolygon& rPolygon, const Gradient& rGradient) override;
 159     bool implDrawGradient(basegfx::B2DPolyPolygon const& rPolyPolygon,
 160                           SalGradient const& rGradient) override;
 161
 162     bool supportsOperation(OutDevSupportType eType) const override;
 163
 164 private:
 165     void drawScaledImage(const SalTwoRect& rPosAry, const QImage& rImage);
 166 };
 167
 168 class QtGraphics final : public SalGraphicsAutoDelegateToImpl, public QtGraphicsBase
 169 {
 170     friend class QtBitmap;
 171
 172     std::unique_ptr<QtGraphicsBackend> m_pBackend;
 173
 174     QtFrame* m_pFrame;
 175
 176     rtl::Reference<QtFont> m_pTextStyle[MAX_FALLBACK];
 177     Color m_aTextColor;
 178
 179     QtGraphics(QtFrame* pFrame, QImage* pQImage);
 180
 181     void drawScaledImage(const SalTwoRect& rPosAry, const QImage& rImage);
 182
 183     void handleDamage(const tools::Rectangle&) override;
 184
 185 public:
 186     QtGraphics(QtFrame* pFrame)
 187         : QtGraphics(pFrame, nullptr)
 188     {
 189     }
 190     QtGraphics(QImage* pQImage)
 191         : QtGraphics(nullptr, pQImage)
 192     {
 193     }
 194     virtual ~QtGraphics() override;
 195
 196     QImage* getQImage() { return m_pBackend->getQImage(); }
 197
 198     void ChangeQImage(QImage* pImage);
 199
 200     virtual SalGraphicsImpl* GetImpl() const override;
 201     virtual SystemGraphicsData GetGraphicsData() const override;
 202     virtual OUString getRenderBackendName() const override
 203     {
 204         return m_pBackend->getRenderBackendName();
 205     }
 206
 207 #if ENABLE_CAIRO_CANVAS
 208     virtual bool SupportsCairo() const override;
 209     virtual cairo::SurfaceSharedPtr
 210     CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const override;
 211     virtual cairo::SurfaceSharedPtr CreateSurface(const OutputDevice& rRefDevice, int x, int y,
 212                                                   int width, int height) const override;
 213     virtual cairo::SurfaceSharedPtr CreateBitmapSurface(const OutputDevice& rRefDevice,
 214                                                         const BitmapSystemData& rData,
 215                                                         const Size& rSize) const override;
 216     virtual css::uno::Any GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface,
 217                                                  const basegfx::B2ISize& rSize) const override;
 218 #endif // ENABLE_CAIRO_CANVAS
 219
 220     // GDI
 221
 222     virtual void GetResolution(sal_Int32& rDPIX, sal_Int32& rDPIY) override;
 223
 224     // Text rendering + font support
 225
 226     virtual void SetTextColor(Color nColor) override;
 227     virtual void SetFont(LogicalFontInstance*, int nFallbackLevel) override;
 228     virtual void GetFontMetric(FontMetricDataRef&, int nFallbackLevel) override;
 229     virtual FontCharMapRef GetFontCharMap() const override;
 230     virtual bool GetFontCapabilities(vcl::FontCapabilities& rFontCapabilities) const override;
 231     virtual void GetDevFontList(vcl::font::PhysicalFontCollection*) override;
 232     virtual void ClearDevFontCache() override;
 233     virtual bool AddTempDevFont(vcl::font::PhysicalFontCollection*, const OUString& rFileURL,
 234                                 const OUString& rFontName) override;
 235
 236     virtual std::unique_ptr<GenericSalLayout> GetTextLayout(int nFallbackLevel) override;
 237     virtual void DrawTextLayout(const GenericSalLayout&) override;
 238 };
 239
 240 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */