vcl/qt5/QtInstanceDrawingArea.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 <QtInstanceDrawingArea.hxx>
  11 #include <QtInstanceDrawingArea.moc>
  12
  13 #include <vcl/qt/QtUtils.hxx>
  14
  15 QtInstanceDrawingArea::QtInstanceDrawingArea(QLabel* pLabel)
  16     : QtInstanceWidget(pLabel)
  17     , m_pLabel(pLabel)
  18     , m_xDevice(DeviceFormat::WITHOUT_ALPHA)
  19 {
  20     assert(m_pLabel);
  21
  22     // install event filter, so eventFilter() can handle widget events
  23     m_pLabel->installEventFilter(this);
  24 }
  25
  26 void QtInstanceDrawingArea::queue_draw()
  27 {
  28     SolarMutexGuard g;
  29     GetQtInstance().RunInMainThread([&] { getQWidget()->update(); });
  30 }
  31
  32 void QtInstanceDrawingArea::queue_draw_area(int, int, int, int)
  33 {
  34     assert(false && "Not implemented yet");
  35 }
  36
  37 void QtInstanceDrawingArea::enable_drag_source(rtl::Reference<TransferDataContainer>&, sal_uInt8)
  38 {
  39     assert(false && "Not implemented yet");
  40 }
  41
  42 void QtInstanceDrawingArea::set_cursor(PointerStyle) { assert(false && "Not implemented yet"); }
  43
  44 Point QtInstanceDrawingArea::get_pointer_position() const
  45 {
  46     assert(false && "Not implemented yet");
  47     return Point();
  48 }
  49
  50 void QtInstanceDrawingArea::set_input_context(const InputContext&)
  51 {
  52     assert(false && "Not implemented yet");
  53 }
  54
  55 void QtInstanceDrawingArea::im_context_set_cursor_location(const tools::Rectangle&, int)
  56 {
  57     assert(false && "Not implemented yet");
  58 }
  59
  60 OutputDevice& QtInstanceDrawingArea::get_ref_device() { return *m_xDevice; }
  61
  62 a11yref QtInstanceDrawingArea::get_accessible_parent()
  63 {
  64     assert(false && "Not implemented yet");
  65     return nullptr;
  66 }
  67
  68 a11yrelationset QtInstanceDrawingArea::get_accessible_relation_set()
  69 {
  70     assert(false && "Not implemented yet");
  71     return nullptr;
  72 }
  73
  74 AbsoluteScreenPixelPoint QtInstanceDrawingArea::get_accessible_location_on_screen()
  75 {
  76     assert(false && "Not implemented yet");
  77     return AbsoluteScreenPixelPoint(0, 0);
  78 }
  79
  80 void QtInstanceDrawingArea::click(const Point&) { assert(false && "Not implemented yet"); }
  81
  82 bool QtInstanceDrawingArea::eventFilter(QObject* pObject, QEvent* pEvent)
  83 {
  84     if (pObject != m_pLabel)
  85         return false;
  86
  87     SolarMutexGuard g;
  88     assert(GetQtInstance().IsMainThread());
  89
  90     switch (pEvent->type())
  91     {
  92         case QEvent::Paint:
  93             handlePaintEvent();
  94             return false;
  95         case QEvent::Resize:
  96             handleResizeEvent();
  97             return false;
  98         default:
  99             return false;
 100     }
 101 }
 102
 103 void QtInstanceDrawingArea::handlePaintEvent()
 104 {
 105     tools::Rectangle aRect(0, 0, m_pLabel->width(), m_pLabel->height());
 106     aRect = m_xDevice->PixelToLogic(aRect);
 107     m_xDevice->Erase(aRect);
 108     m_aDrawHdl.Call(std::pair<vcl::RenderContext&, const tools::Rectangle&>(*m_xDevice, aRect));
 109     QPixmap aPixmap = toQPixmap(*m_xDevice);
 110
 111     // set new pixmap if it changed
 112 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 113     if (aPixmap.toImage() != m_pLabel->pixmap().toImage())
 114 #else
 115     if (aPixmap.toImage() != m_pLabel->pixmap(Qt::ReturnByValue).toImage())
 116 #endif
 117         m_pLabel->setPixmap(aPixmap);
 118 }
 119
 120 void QtInstanceDrawingArea::handleResizeEvent()
 121 {
 122     const Size aSize = toSize(m_pLabel->size());
 123     m_xDevice->SetOutputSizePixel(aSize);
 124     m_aSizeAllocateHdl.Call(aSize);
 125 }
 126
 127 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */