vcl/qt5/Qt5SvpGraphics.cxx

   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
  10 #include <sal/config.h>
  11 #include <sal/log.hxx>
  12 #include <salbmp.hxx>
  13
  14 #include <config_cairo_canvas.h>
  15
  16 #include <Qt5Data.hxx>
  17 #include <Qt5Frame.hxx>
  18 #include <Qt5Graphics_Controls.hxx>
  19 #include <Qt5SvpGraphics.hxx>
  20 #include <Qt5SvpSurface.hxx>
  21 #include <Qt5Tools.hxx>
  22
  23 #include <QtGui/QScreen>
  24 #include <QtGui/QWindow>
  25 #include <QtWidgets/QWidget>
  26
  27 Qt5SvpGraphics::Qt5SvpGraphics(Qt5Frame* pFrame)
  28     : SvpSalGraphics()
  29     , m_pFrame(pFrame)
  30 {
  31     if (!Qt5Data::noNativeControls())
  32         m_pWidgetDraw.reset(new Qt5Graphics_Controls());
  33 }
  34
  35 Qt5SvpGraphics::~Qt5SvpGraphics() {}
  36
  37 void Qt5SvpGraphics::updateQWidget() const
  38 {
  39     if (!m_pFrame)
  40         return;
  41     QWidget* pQWidget = m_pFrame->GetQWidget();
  42     if (pQWidget)
  43         pQWidget->update(pQWidget->rect());
  44 }
  45
  46 #if ENABLE_CAIRO_CANVAS
  47
  48 bool Qt5SvpGraphics::SupportsCairo() const { return true; }
  49
  50 cairo::SurfaceSharedPtr
  51 Qt5SvpGraphics::CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const
  52 {
  53     return cairo::SurfaceSharedPtr(new cairo::Qt5SvpSurface(rSurface));
  54 }
  55
  56 cairo::SurfaceSharedPtr Qt5SvpGraphics::CreateSurface(const OutputDevice& /*rRefDevice*/, int x,
  57                                                       int y, int width, int height) const
  58 {
  59     return cairo::SurfaceSharedPtr(new cairo::Qt5SvpSurface(this, x, y, width, height));
  60 }
  61
  62 #endif
  63
  64 static void QImage2BitmapBuffer(QImage& rImg, BitmapBuffer& rBuf)
  65 {
  66     assert(rImg.width());
  67     assert(rImg.height());
  68
  69     rBuf.mnWidth = rImg.width();
  70     rBuf.mnHeight = rImg.height();
  71     rBuf.mnBitCount = getFormatBits(rImg.format());
  72     rBuf.mpBits = rImg.bits();
  73     rBuf.mnScanlineSize = rImg.bytesPerLine();
  74 }
  75
  76 void Qt5SvpGraphics::handleDamage(const tools::Rectangle& rDamagedRegion)
  77 {
  78     assert(m_pWidgetDraw);
  79     assert(dynamic_cast<Qt5Graphics_Controls*>(m_pWidgetDraw.get()));
  80     assert(!rDamagedRegion.IsEmpty());
  81
  82     QImage* pImage = static_cast<Qt5Graphics_Controls*>(m_pWidgetDraw.get())->getImage();
  83     assert(pImage);
  84
  85     BitmapBuffer aBuffer;
  86     QImage2BitmapBuffer(*pImage, aBuffer);
  87     SalTwoRect aTR(0, 0, pImage->width(), pImage->height(), rDamagedRegion.getX(),
  88                    rDamagedRegion.getY(), rDamagedRegion.GetWidth(), rDamagedRegion.GetHeight());
  89     drawBitmap(aTR, &aBuffer, CAIRO_OPERATOR_OVER);
  90 }
  91
  92 void Qt5SvpGraphics::GetResolution(sal_Int32& rDPIX, sal_Int32& rDPIY)
  93 {
  94     char* pForceDpi;
  95     if ((pForceDpi = getenv("SAL_FORCEDPI")))
  96     {
  97         OString sForceDPI(pForceDpi);
  98         rDPIX = rDPIY = sForceDPI.toInt32();
  99         return;
 100     }
 101
 102     if (!m_pFrame || !m_pFrame->GetQWidget()->window()->windowHandle())
 103         return;
 104
 105     QScreen* pScreen = m_pFrame->GetQWidget()->window()->windowHandle()->screen();
 106     rDPIX = pScreen->logicalDotsPerInchX() * pScreen->devicePixelRatio() + 0.5;
 107     rDPIY = pScreen->logicalDotsPerInchY() * pScreen->devicePixelRatio() + 0.5;
 108 }
 109
 110 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */