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ui: Fixed exporting images from the graph resulted in too large images (issue #511)

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* Fixed style issue in save dialog on Linux
* Fixed wrong dialog used on Mac and Windows
* Improved image quality

bug id = 511
This commit is contained in:
Eberhard Graether
2017-11-17 22:41:43 +01:00
parent b887a4a89e
commit 37b6453644
3 changed files with 14 additions and 5 deletions
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src/lib_gui/qt/graphics/QtGraphicsView.cpp
+10 -3
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@@ -92,6 +92,13 @@ void QtGraphicsView::setAppZoomFactor(float appZoomFactor)
updateTransform();
}
void QtGraphicsView::setSceneRect(const QRectF& rect)
{
QGraphicsView::setSceneRect(rect);
scene()->setSceneRect(rect);
}
QtGraphNode* QtGraphicsView::getNodeAtCursorPosition() const
{
QtGraphNode* node = nullptr;
@@ -409,11 +416,11 @@ void QtGraphicsView::stopTimer()
void QtGraphicsView::exportGraph()
{
QString fileName = QtFileDialog::showSaveFileDialog(
this, "Save image", QDir::homePath(), "PNG (*.png);;JPEG (*.JPEG);;BMP Files (*.bmp)");
nullptr, "Save image", QDir::homePath(), "PNG (*.png);;JPEG (*.JPEG);;BMP Files (*.bmp)");
if (!fileName.isNull())
{
QImage image(scene()->sceneRect().size().toSize(), QImage::Format_ARGB32);
QImage image(scene()->sceneRect().size().toSize() * 2, QImage::Format_ARGB32);
image.fill(Qt::transparent);
QPainter painter(&image);
@@ -421,7 +428,7 @@ void QtGraphicsView::exportGraph()
scene()->render(&painter);
image.save(fileName);
// different approach
// different approach: only currently visible part
// QPixmap pixMap = grab();
// pixMap.save(fileName);
}