vcl/qt5/QtSvpGraphics.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   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 #include <o3tl/string_view.hxx>
  14
  15 #include <config_cairo_canvas.h>
  16
  17 #include <QtData.hxx>
  18 #include <QtFrame.hxx>
  19 #include <QtGraphics_Controls.hxx>
  20 #include <QtSvpGraphics.hxx>
  21 #include <QtSvpSurface.hxx>
  22 #include <QtTools.hxx>
  23
  24 #include <QtWidgets/QWidget>
  25
  26 QtSvpGraphics::QtSvpGraphics(QtFrame* pFrame)
  27     : m_pFrame(pFrame)
  28 {
  29     if (!QtData::noNativeControls())
  30         m_pWidgetDraw.reset(new QtGraphics_Controls(*this));
  31     if (m_pFrame)
  32         setDevicePixelRatioF(m_pFrame->devicePixelRatioF());
  33 }
  34
  35 QtSvpGraphics::~QtSvpGraphics() {}
  36
  37 void QtSvpGraphics::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 QtSvpGraphics::SupportsCairo() const { return true; }
  49
  50 cairo::SurfaceSharedPtr
  51 QtSvpGraphics::CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const
  52 {
  53     return std::make_shared<cairo::QtSvpSurface>(rSurface);
  54 }
  55
  56 cairo::SurfaceSharedPtr QtSvpGraphics::CreateSurface(const OutputDevice& /*rRefDevice*/, int x,
  57                                                      int y, int width, int height) const
  58 {
  59     return std::make_shared<cairo::QtSvpSurface>(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 QtSvpGraphics::handleDamage(const tools::Rectangle& rDamagedRegion)
  77 {
  78     assert(m_pWidgetDraw);
  79     assert(dynamic_cast<QtGraphics_Controls*>(m_pWidgetDraw.get()));
  80     assert(!rDamagedRegion.IsEmpty());
  81
  82     QImage* pImage = static_cast<QtGraphics_Controls*>(m_pWidgetDraw.get())->getImage();
  83     assert(pImage);
  84     if (pImage->width() == 0 || pImage->height() == 0)
  85         return;
  86
  87     BitmapBuffer aBuffer;
  88     QImage2BitmapBuffer(*pImage, aBuffer);
  89     SalTwoRect aTR(0, 0, pImage->width(), pImage->height(), rDamagedRegion.Left(),
  90                    rDamagedRegion.Top(), rDamagedRegion.GetWidth(), rDamagedRegion.GetHeight());
  91
  92     getSvpBackend()->drawBitmapBuffer(aTR, &aBuffer, CAIRO_OPERATOR_OVER);
  93 }
  94
  95 void QtSvpGraphics::GetResolution(sal_Int32& rDPIX, sal_Int32& rDPIY)
  96 {
  97     QtGraphicsBase::ImplGetResolution(m_pFrame, rDPIX, rDPIY);
  98 }
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */