src/artisan/gviewport/RenderedImage.cpp

   1 /** Aesalon, a tool to visualize program behaviour in real time.
   2         Copyright (C) 2009-2011, Aesalon development team.
   3
   4         Aesalon is distributed under the terms of the GNU GPLv3. See
   5         the included file LICENSE for more information.
   6
   7         @file src/artisan/gviewport/RenderedImage.cpp
   8 */
   9
  10 #include <QPaintDevice>
  11 #include <QRect>
  12 #include <QMutexLocker>
  13
  14 #include "artisan/gviewport/RenderedImage.h"
  15 #include "artisan/gviewport/CoordinateMapper.h"
  16
  17 #include "util/MessageSystem.h"
  18
  19 namespace Artisan {
  20 namespace GViewport {
  21
  22 RenderedImage::RenderedImage(const Rect &dataRange, const Rect &pixelSize)
  23         : m_dataRange(dataRange), m_pixelSize(pixelSize) {
  24
  25         m_image = QImage(m_pixelSize.width(), m_pixelSize.height(), QImage::Format_ARGB32);
  26
  27         //m_image.fill(qRgb(qrand()%256, qrand()%256, qrand()%256));
  28         m_image.fill(qRgb(255, 255, 255));
  29
  30         m_painter = new QPainter();
  31 }
  32
  33 RenderedImage::~RenderedImage() {
  34         delete m_painter;
  35 }
  36
  37 void RenderedImage::merge(RenderedImage &other) {
  38         CoordinateMapper mapper(*this);
  39         Rect local = mapper.dataToPixel(other.dataRange());
  40         startPainting();
  41
  42         m_painter->drawImage(local.toQRect(), other.m_image);
  43
  44         stopPainting();
  45 }
  46
  47 void RenderedImage::startPainting() {
  48         m_paintLock.lock();
  49         m_painter->begin(&m_image);
  50 }
  51
  52 void RenderedImage::stopPainting() {
  53         m_painter->end();
  54         m_paintLock.unlock();
  55 }
  56
  57 void RenderedImage::paintOnto(QPaintDevice *device) {
  58         QPainter painter(device);
  59         painter.drawImage(QRect(0, 0, device->width(), device->height()), m_image, m_image.rect());
  60 }
  61
  62 RenderedImage &RenderedImage::operator=(const RenderedImage &other) {
  63         m_dataRange = other.m_dataRange;
  64         m_pixelSize = other.m_pixelSize;
  65         m_image = other.m_image;
  66         return *this;
  67 }
  68
  69 } // namespace GViewport
  70 } // namespace Artisan