LibreOffice Module vcl (master)  1
Qt5Painter.hxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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9  * This file incorporates work covered by the following license notice:
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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 {
32  QRegion m_aRegion;
33 
34 public:
35  Qt5Painter(Qt5Graphics& rGraphics, bool bPrepareBrush = false, sal_uInt8 nTransparency = 255);
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 += scaledQRect({ nx, ny, nw, nh }, 1 / m_rGraphics.devicePixelRatioF());
46  }
47 
48  void update(const QRect& rRect)
49  {
50  if (m_rGraphics.m_pFrame)
51  m_aRegion += scaledQRect(rRect, 1 / m_rGraphics.devicePixelRatioF());
52  }
53 
54  void update(const QRectF& rRectF)
55  {
56  if (m_rGraphics.m_pFrame)
57  update(scaledQRect(rRectF.toAlignedRect(), 1 / m_rGraphics.devicePixelRatioF()));
58  }
59 
60  void update()
61  {
62  if (m_rGraphics.m_pFrame)
63  m_aRegion += m_rGraphics.m_pFrame->GetQWidget()->rect();
64  }
65 };
66 
67 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
QWidget * GetQWidget() const
Definition: Qt5Frame.hxx:141
Qt5Painter(Qt5Graphics &rGraphics, bool bPrepareBrush=false, sal_uInt8 nTransparency=255)
void update(const QRect &rRect)
Definition: Qt5Painter.hxx:48
QRegion m_aRegion
Definition: Qt5Painter.hxx:32
qreal devicePixelRatioF() const
Qt5Graphics & m_rGraphics
Definition: Qt5Painter.hxx:31
Qt5Frame * m_pFrame
Definition: Qt5Graphics.hxx:45
QRect scaledQRect(const QRect &rRect, const qreal fScale)
Definition: Qt5Tools.hxx:63
unsigned char sal_uInt8
void update(int nx, int ny, int nw, int nh)
Definition: Qt5Painter.hxx:42
void update()
Definition: Qt5Painter.hxx:60
void update(const QRectF &rRectF)
Definition: Qt5Painter.hxx:54