vcl/qt5/Qt5Painter.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   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 <QtCore/QRectF>
  23 #include <QtGui/QPainter>
  24 #include <QtWidgets/QWidget>
  25
  26 #include "Qt5Frame.hxx"
  27 #include "Qt5Graphics.hxx"
  28
  29 class Qt5Painter final : public QPainter
  30 {
  31     Qt5Graphics& m_rGraphics;
  32     QRegion m_aRegion;
  33
  34 public:
  35     Qt5Painter(Qt5Graphics& rGraphics, bool bPrepareBrush = false, sal_uInt8 nTransparency = 255);
  36     ~Qt5Painter()
  37     {
  38         if (m_rGraphics.m_pFrame && !m_aRegion.isEmpty())
  39             m_rGraphics.m_pFrame->GetQWidget()->update(m_aRegion);
  40     }
  41
  42     void update(int nx, int ny, int nw, int nh)
  43     {
  44         if (m_rGraphics.m_pFrame)
  45             m_aRegion += QRect(nx, ny, nw, nh);
  46     }
  47
  48     void update(const QRect& rRect)
  49     {
  50         if (m_rGraphics.m_pFrame)
  51             m_aRegion += rRect;
  52     }
  53
  54     void update(const QRectF& rRectF) { update(rRectF.toAlignedRect()); }
  55
  56     void update()
  57     {
  58         if (m_rGraphics.m_pFrame)
  59             m_aRegion += m_rGraphics.m_pFrame->GetQWidget()->rect();
  60     }
  61 };
  62
  63 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */