void PdfImageGenerator::startGeneration(void) {
int page;
QRectF highlight;
QImage img;
QPair<int,QRectF> demand;
while (!this->requestedPages.isEmpty()) {
demand = requestedPages.takeLast();
page = demand.first;
highlight = demand.second;
img = generateImage(page);
if (!img.isNull()) {
/* image size estimation */
if (this->passes < this->minpasses) {
++passes;
avgw += img.width();
avgh += img.height();
}
/* search result highlight
* cuts out the highlighted word and darkens the rest of the page */
if (highlight.isValid()) {
QRect highlightRect = scaleHighlightRect(highlight);
highlightRect.adjust(-2, -2, 2, 2);
QImage hImage = img.copy(highlightRect);
QPainter painter;
painter.begin(&img);
painter.fillRect(img.rect(), QColor(0, 0, 0, 32));
painter.drawImage(highlightRect, hImage);
painter.end();
}
emit imageFinished(img, page);
}
}
if (this->passes == minpasses) {
pageSize.setWidth((int)(avgw/passes));
pageSize.setHeight((int)(avgh/passes));
++passes;
emit newPageSize(pageSize);
}
emit generationFinished();
}
/*! Constructs widgets and connections of signals for the main window.
*/
void MPWindow::initUIComponents()
{
// Initialise view
m_view = new MPMapView(this);
connect(m_view, SIGNAL(interactionChanged(Interaction*)), this, SLOT(onInteractionChanged(Interaction*)));
connect(m_view, SIGNAL(viewportShift()), this, SLOT(onViewShift()));
connect(m_view, SIGNAL(painted(qlonglong)), this, SLOT(onViewPainted(qlonglong)));
connect(m_view, SIGNAL(imageRequested(int)), this, SLOT(onViewImageRequested(int)));
connect(m_view, SIGNAL(imageReceived()), this, SLOT(onViewImageReceived()));
connect(m_view, SIGNAL(imageFinished()), this, SLOT(onViewImageFinished()));
connect(m_view, SIGNAL(mouseMove(QMouseEvent*)), this, SLOT(onViewMouseMove(QMouseEvent*)));
connect(m_view, SIGNAL(featureSnap(Feature*)), this, SLOT(onViewFeatureSnap(Feature*)));
setCentralWidget(m_view);
// Docks
m_infosdock = new InfosDock(this);
m_infosdock->setAllowedAreas(Qt::RightDockWidgetArea | Qt::LeftDockWidgetArea);
addDockWidget(Qt::RightDockWidgetArea, m_infosdock);
connect(m_infosdock, SIGNAL(dockClosed(bool)), this, SLOT(onDisplayInfosDock(bool)));
// Status bar
m_coordsLabel = new CoordField(this);
connect(m_coordsLabel, SIGNAL(centerView(qreal,qreal)), this, SLOT(onCenterView(qreal,qreal)));
m_meterPerPixelLabel = new QLabel(this);
m_zoomlevelLabel = new QLabel(this);
m_paintTimeLabel = new QLabel(this);
m_paintTimeLabel->setMinimumWidth(23);
m_dataProgress = new QProgressBar(this);
m_dataProgress->setMaximumWidth(200);
m_dataProgress->setVisible(false);
m_imagesProgress = new QProgressBar(this);
m_imagesProgress->setMaximumWidth(200);
m_imagesProgress->setFormat(tr("tile %v / %m"));
m_wsProgress = new QProgressBar(this);
m_wsProgress->setMaximumWidth(200);
m_wsProgress->setTextVisible(true);
m_wsProgress->setFormat(tr("Requesting...")); // This has no effects, because max = 0
m_wsProgress->setVisible(false);
m_wsProgress->setMaximum(0);
// Separators
m_sepCoordZoom = new QFrame(this);
m_sepCoordZoom->setFrameStyle(QFrame::VLine);
m_sepZoomScale = new QFrame(this);
m_sepZoomScale->setFrameStyle(QFrame::VLine);
m_sepScaleTime = new QFrame(this);
m_sepScaleTime->setFrameStyle(QFrame::VLine);
statusBar()->addPermanentWidget(m_imagesProgress);
statusBar()->addPermanentWidget(m_dataProgress);
statusBar()->addPermanentWidget(m_wsProgress);
statusBar()->addPermanentWidget(m_coordsLabel);
statusBar()->addPermanentWidget(m_sepCoordZoom);
statusBar()->addPermanentWidget(m_zoomlevelLabel);
statusBar()->addPermanentWidget(m_sepZoomScale);
statusBar()->addPermanentWidget(m_meterPerPixelLabel);
statusBar()->addPermanentWidget(m_sepScaleTime);
statusBar()->addPermanentWidget(m_paintTimeLabel);
}
