vcl/qt5/QtGraphics.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.
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   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 #include <QtGraphics.hxx>
  21
  22 #include <QtData.hxx>
  23 #include <QtFont.hxx>
  24 #include <QtFrame.hxx>
  25 #include <QtGraphics_Controls.hxx>
  26 #include <QtPainter.hxx>
  27
  28 #include <QtGui/QImage>
  29 #include <QtGui/QPainter>
  30 #include <QtWidgets/QPushButton>
  31 #include <QtWidgets/QWidget>
  32
  33 QtGraphics::QtGraphics( QtFrame *pFrame, QImage *pQImage )
  34     : m_pFrame( pFrame )
  35     , m_pTextStyle{ nullptr, }
  36     , m_aTextColor( 0x00, 0x00, 0x00 )
  37 {
  38     m_pBackend = std::make_unique<QtGraphicsBackend>(m_pFrame, pQImage);
  39
  40     if (!initWidgetDrawBackends(false))
  41     {
  42         if (!QtData::noNativeControls())
  43             m_pWidgetDraw.reset(new QtGraphics_Controls(*this));
  44     }
  45     if (m_pFrame)
  46         setDevicePixelRatioF(m_pFrame->devicePixelRatioF());
  47 }
  48
  49 QtGraphics::~QtGraphics() { ReleaseFonts(); }
  50
  51 void QtGraphics::ChangeQImage(QImage* pQImage)
  52 {
  53     m_pBackend->setQImage(pQImage);
  54     m_pBackend->ResetClipRegion();
  55 }
  56
  57 SalGraphicsImpl* QtGraphics::GetImpl() const { return m_pBackend.get(); }
  58
  59 SystemGraphicsData QtGraphics::GetGraphicsData() const { return SystemGraphicsData(); }
  60
  61 #if ENABLE_CAIRO_CANVAS
  62
  63 bool QtGraphics::SupportsCairo() const { return false; }
  64
  65 cairo::SurfaceSharedPtr
  66 QtGraphics::CreateSurface(const cairo::CairoSurfaceSharedPtr& /*rSurface*/) const
  67 {
  68     return nullptr;
  69 }
  70
  71 cairo::SurfaceSharedPtr QtGraphics::CreateSurface(const OutputDevice& /*rRefDevice*/, int /*x*/,
  72                                                   int /*y*/, int /*width*/, int /*height*/) const
  73 {
  74     return nullptr;
  75 }
  76
  77 cairo::SurfaceSharedPtr QtGraphics::CreateBitmapSurface(const OutputDevice& /*rRefDevice*/,
  78                                                         const BitmapSystemData& /*rData*/,
  79                                                         const Size& /*rSize*/) const
  80 {
  81     return nullptr;
  82 }
  83
  84 css::uno::Any QtGraphics::GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& /*rSurface*/,
  85                                                  const basegfx::B2ISize& /*rSize*/) const
  86 {
  87     return css::uno::Any();
  88 }
  89
  90 #endif
  91
  92 void QtGraphics::handleDamage(const tools::Rectangle& rDamagedRegion)
  93 {
  94     assert(m_pWidgetDraw);
  95     assert(dynamic_cast<QtGraphics_Controls*>(m_pWidgetDraw.get()));
  96     assert(!rDamagedRegion.IsEmpty());
  97
  98     QImage* pImage = static_cast<QtGraphics_Controls*>(m_pWidgetDraw.get())->getImage();
  99     QImage blit(*pImage);
 100     blit.setDevicePixelRatio(1);
 101     QtPainter aPainter(*m_pBackend);
 102     aPainter.drawImage(QPoint(rDamagedRegion.Left(), rDamagedRegion.Top()), blit);
 103     aPainter.update(toQRect(rDamagedRegion));
 104 }
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */