vcl/inc/qt5/Qt5Graphics.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 <salgdi.hxx>
  23
  24 #include <memory>
  25
  26 #include <QtGui/QPainter>
  27 #include <QtGui/QPainterPath>
  28 #include <QtGui/QRegion>
  29
  30 #include "Qt5GraphicsBase.hxx"
  31
  32 class PhysicalFontCollection;
  33 class QImage;
  34 class QPushButton;
  35 class Qt5Font;
  36 class Qt5FontFace;
  37 class Qt5Frame;
  38 class Qt5Painter;
  39
  40 class Qt5GraphicsBackend final : public SalGraphicsImpl, public Qt5GraphicsBase
  41 {
  42     friend class Qt5Painter;
  43
  44     Qt5Frame* m_pFrame;
  45     QImage* m_pQImage;
  46     QRegion m_aClipRegion;
  47     QPainterPath m_aClipPath;
  48     Color m_aLineColor;
  49     Color m_aFillColor;
  50     QPainter::CompositionMode m_eCompositionMode;
  51
  52 public:
  53     Qt5GraphicsBackend(Qt5Frame* pFrame, QImage* pQImage);
  54     ~Qt5GraphicsBackend() override;
  55
  56     void Init() override {}
  57
  58     QImage* getQImage() { return m_pQImage; }
  59
  60     void setQImage(QImage* pQImage) { m_pQImage = pQImage; }
  61
  62     void freeResources() override {}
  63
  64     OUString getRenderBackendName() const override { return "qt5"; }
  65
  66     bool setClipRegion(vcl::Region const& rRegion) override;
  67     void ResetClipRegion() override;
  68
  69     sal_uInt16 GetBitCount() const override;
  70
  71     tools::Long GetGraphicsWidth() const override;
  72
  73     void SetLineColor() override;
  74     void SetLineColor(Color nColor) override;
  75     void SetFillColor() override;
  76     void SetFillColor(Color nColor) override;
  77     void SetXORMode(bool bSet, bool bInvertOnly) override;
  78     void SetROPLineColor(SalROPColor nROPColor) override;
  79     void SetROPFillColor(SalROPColor nROPColor) override;
  80
  81     void drawPixel(tools::Long nX, tools::Long nY) override;
  82     void drawPixel(tools::Long nX, tools::Long nY, Color nColor) override;
  83
  84     void drawLine(tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2) override;
  85     void drawRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight) override;
  86     void drawPolyLine(sal_uInt32 nPoints, const Point* pPointArray) override;
  87     void drawPolygon(sal_uInt32 nPoints, const Point* pPointArray) override;
  88     void drawPolyPolygon(sal_uInt32 nPoly, const sal_uInt32* pPoints,
  89                          const Point** pPointArray) override;
  90
  91     bool drawPolyPolygon(const basegfx::B2DHomMatrix& rObjectToDevice,
  92                          const basegfx::B2DPolyPolygon&, double fTransparency) override;
  93
  94     bool drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice, const basegfx::B2DPolygon&,
  95                       double fTransparency, double fLineWidth, const std::vector<double>* pStroke,
  96                       basegfx::B2DLineJoin, css::drawing::LineCap, double fMiterMinimumAngle,
  97                       bool bPixelSnapHairline) override;
  98
  99     bool drawPolyLineBezier(sal_uInt32 nPoints, const Point* pPointArray,
 100                             const PolyFlags* pFlagArray) override;
 101
 102     bool drawPolygonBezier(sal_uInt32 nPoints, const Point* pPointArray,
 103                            const PolyFlags* pFlagArray) override;
 104
 105     bool drawPolyPolygonBezier(sal_uInt32 nPoly, const sal_uInt32* pPoints,
 106                                const Point* const* pPointArray,
 107                                const PolyFlags* const* pFlagArray) override;
 108
 109     void copyArea(tools::Long nDestX, tools::Long nDestY, tools::Long nSrcX, tools::Long nSrcY,
 110                   tools::Long nSrcWidth, tools::Long nSrcHeight, bool bWindowInvalidate) override;
 111
 112     void copyBits(const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics) override;
 113
 114     void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap) override;
 115
 116     void drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
 117                     const SalBitmap& rMaskBitmap) override;
 118
 119     void drawMask(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap,
 120                   Color nMaskColor) override;
 121
 122     std::shared_ptr<SalBitmap> getBitmap(tools::Long nX, tools::Long nY, tools::Long nWidth,
 123                                          tools::Long nHeight) override;
 124
 125     Color getPixel(tools::Long nX, tools::Long nY) override;
 126
 127     void invert(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 128                 SalInvert nFlags) override;
 129
 130     void invert(sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags) override;
 131
 132     bool drawEPS(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 133                  void* pPtr, sal_uInt32 nSize) override;
 134
 135     bool blendBitmap(const SalTwoRect&, const SalBitmap& rBitmap) override;
 136
 137     bool blendAlphaBitmap(const SalTwoRect&, const SalBitmap& rSrcBitmap,
 138                           const SalBitmap& rMaskBitmap, const SalBitmap& rAlphaBitmap) override;
 139
 140     bool drawAlphaBitmap(const SalTwoRect&, const SalBitmap& rSourceBitmap,
 141                          const SalBitmap& rAlphaBitmap) override;
 142
 143     bool drawTransformedBitmap(const basegfx::B2DPoint& rNull, const basegfx::B2DPoint& rX,
 144                                const basegfx::B2DPoint& rY, const SalBitmap& rSourceBitmap,
 145                                const SalBitmap* pAlphaBitmap, double fAlpha) override;
 146
 147     bool hasFastDrawTransformedBitmap() const override;
 148
 149     bool drawAlphaRect(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight,
 150                        sal_uInt8 nTransparency) override;
 151
 152     bool drawGradient(const tools::PolyPolygon& rPolygon, const Gradient& rGradient) override;
 153     bool implDrawGradient(basegfx::B2DPolyPolygon const& rPolyPolygon,
 154                           SalGradient const& rGradient) override;
 155
 156     bool supportsOperation(OutDevSupportType eType) const override;
 157
 158 private:
 159     void drawScaledImage(const SalTwoRect& rPosAry, const QImage& rImage);
 160 };
 161
 162 class Qt5Graphics final : public SalGraphicsAutoDelegateToImpl, public Qt5GraphicsBase
 163 {
 164     friend class Qt5Bitmap;
 165
 166     std::unique_ptr<Qt5GraphicsBackend> m_pBackend;
 167
 168     Qt5Frame* m_pFrame;
 169
 170     rtl::Reference<Qt5Font> m_pTextStyle[MAX_FALLBACK];
 171     Color m_aTextColor;
 172
 173     Qt5Graphics(Qt5Frame* pFrame, QImage* pQImage);
 174
 175     void drawScaledImage(const SalTwoRect& rPosAry, const QImage& rImage);
 176
 177     void handleDamage(const tools::Rectangle&) override;
 178
 179 public:
 180     Qt5Graphics(Qt5Frame* pFrame)
 181         : Qt5Graphics(pFrame, nullptr)
 182     {
 183     }
 184     Qt5Graphics(QImage* pQImage)
 185         : Qt5Graphics(nullptr, pQImage)
 186     {
 187     }
 188     virtual ~Qt5Graphics() override;
 189
 190     QImage* getQImage() { return m_pBackend->getQImage(); }
 191
 192     void ChangeQImage(QImage* pImage);
 193
 194     virtual SalGraphicsImpl* GetImpl() const override;
 195     virtual SystemGraphicsData GetGraphicsData() const override;
 196     virtual OUString getRenderBackendName() const override
 197     {
 198         return m_pBackend->getRenderBackendName();
 199     }
 200
 201 #if ENABLE_CAIRO_CANVAS
 202     virtual bool SupportsCairo() const override;
 203     virtual cairo::SurfaceSharedPtr
 204     CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const override;
 205     virtual cairo::SurfaceSharedPtr CreateSurface(const OutputDevice& rRefDevice, int x, int y,
 206                                                   int width, int height) const override;
 207     virtual cairo::SurfaceSharedPtr CreateBitmapSurface(const OutputDevice& rRefDevice,
 208                                                         const BitmapSystemData& rData,
 209                                                         const Size& rSize) const override;
 210     virtual css::uno::Any GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface,
 211                                                  const basegfx::B2ISize& rSize) const override;
 212 #endif // ENABLE_CAIRO_CANVAS
 213
 214     // GDI
 215
 216     virtual void GetResolution(sal_Int32& rDPIX, sal_Int32& rDPIY) override;
 217
 218     // Text rendering + font support
 219
 220     virtual void SetTextColor(Color nColor) override;
 221     virtual void SetFont(LogicalFontInstance*, int nFallbackLevel) override;
 222     virtual void GetFontMetric(ImplFontMetricDataRef&, int nFallbackLevel) override;
 223     virtual FontCharMapRef GetFontCharMap() const override;
 224     virtual bool GetFontCapabilities(vcl::FontCapabilities& rFontCapabilities) const override;
 225     virtual void GetDevFontList(PhysicalFontCollection*) override;
 226     virtual void ClearDevFontCache() override;
 227     virtual bool AddTempDevFont(PhysicalFontCollection*, const OUString& rFileURL,
 228                                 const OUString& rFontName) override;
 229     virtual bool CreateFontSubset(const OUString& rToFile, const PhysicalFontFace* pFont,
 230                                   const sal_GlyphId* pGlyphIds, const sal_uInt8* pEncoding,
 231                                   sal_Int32* pWidths, int nGlyphs,
 232                                   FontSubsetInfo& rInfo // out parameter
 233                                   ) override;
 234
 235     virtual const void* GetEmbedFontData(const PhysicalFontFace*, tools::Long* pDataLen) override;
 236     virtual void FreeEmbedFontData(const void* pData, tools::Long nDataLen) override;
 237
 238     virtual void GetGlyphWidths(const PhysicalFontFace*, bool bVertical,
 239                                 std::vector<sal_Int32>& rWidths, Ucs2UIntMap& rUnicodeEnc) override;
 240
 241     virtual std::unique_ptr<GenericSalLayout> GetTextLayout(int nFallbackLevel) override;
 242     virtual void DrawTextLayout(const GenericSalLayout&) override;
 243 };
 244
 245 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */