void ImageView::exportImage()
{
#ifndef QT_NO_SVG
QGraphicsSvgItem *svgItem = qgraphicsitem_cast<QGraphicsSvgItem *>(m_imageItem);
QTC_ASSERT(svgItem, return);
const QFileInfo origFi = m_file->filePath().toFileInfo();
ExportDialog exportDialog(this);
exportDialog.setWindowTitle(tr("Export %1").arg(origFi.fileName()));
exportDialog.setExportSize(svgSize());
exportDialog.setExportFileName(suggestedExportFileName(origFi));
while (exportDialog.exec() == QDialog::Accepted && !exportSvg(exportDialog.exportData())) {}
#endif // !QT_NO_SVG
}
void ItemDocument::exportToImage() {
// scaralously copied from print.
// this slot is called whenever the File->Export menu is selected,
// the Export shortcut is pressed or the Export toolbar
// button is clicked
// widget for the kfiledialog
// It is the bit that says "Crop circuit?"
// Okay need to think of something way better to say here.
// gotme here, KFileDialog makes itself parent so tries to destroy cropCheck when it is deleted.
// therefore we use a pointer.
QString cropMessage;
cropMessage = i18n("Crop image");
QCheckBox *cropCheck = new QCheckBox(cropMessage, KTechlab::self(), "cropCheck");
cropCheck->setChecked(true); // yes by default?
// we need an object so we can retrieve which image type was selected by the user
// so setup the filedialog.
QString f;
f = QString("*.png|%1\n*.bmp|%2\n*.svg|%3").arg(i18n("PNG Image")).arg(i18n("BMP Image")).arg(i18n("SVG Image"));
KFileDialog exportDialog(QString::null, f, KTechlab::self(), i18n("Export As Image"), true, cropCheck);
exportDialog.setOperationMode(KFileDialog::Saving);
// now actually show it
if (exportDialog.exec() == QDialog::Rejected)
return;
KURL url = exportDialog.selectedURL();
if (url.isEmpty()) return;
if (QFile::exists(url.path())) {
int query = KMessageBox::warningYesNo(KTechlab::self(), i18n("A file named \"%1\" already exists. " "Are you sure you want to overwrite it?").arg(url.fileName()), i18n("Overwrite File?"), i18n("Overwrite"), KStdGuiItem::cancel());
if (query == KMessageBox::No) return;
}
// with Qt, you always "print" to a
// QPainter.. whether the output medium is a pixmap, a screen,
// or paper
// needs to be something like QPicture to do SVG etc...
QRect saveArea;
QString type;
QRect cropArea;
QPaintDevice *outputImage;
QString filter = exportDialog.currentFilter();
filter = filter.lower(); // gently soften the appearance of the letters.
// did have a switch here but seems you can't use that on strings
if (filter == "*.png") type = "PNG";
else if (filter == "*.bmp") type = "BMP";
else if (filter == "*.svg") {
KMessageBox::information(NULL, i18n("SVG export is sub-functional"), i18n("Export As Image"));
type = "SVG";
}
// I don't like forcing people to use the right extension (personally)
// but it is the easiest way to decide image type.
else {
KMessageBox::sorry(NULL, i18n("Unknown extension, please select one from the filter list."), i18n("Export As Image"));
return;
}
if (cropCheck->isChecked()) {
cropArea = canvasBoundingRect();
if (cropArea.isNull()) {
KMessageBox::sorry(0l, i18n("There is nothing to crop"), i18n("Export As Image"));
return;
} else {
cropArea &= canvas()->rect();
}
}
saveArea = m_canvas->rect();
if (type == "PNG" || type == "BMP")
outputImage = new QPixmap(saveArea.size());
else if (type == "SVG") {
setSVGExport(true);
outputImage = new QPicture();
// svg can't be cropped using the qimage method.
saveArea = cropArea;
} else {
kdWarning() << "Unknown type!" << endl;
return;
}
QPainter p(outputImage);
m_canvas->setBackgroundPixmap(QPixmap());
m_canvas->drawArea(saveArea, &p);
updateBackground();
p.end();
bool saveResult;
// if cropping we need to convert to an image,
// crop, then save.
if (cropCheck->isChecked()) {
if (type == "SVG")
saveResult = dynamic_cast<QPicture*>(outputImage)->save(url.path(), type);
else {
QImage img = dynamic_cast<QPixmap*>(outputImage)->convertToImage();
img = img.copy(cropArea);
saveResult = img.save(url.path(), type);
}
} else {
if (type == "SVG")
saveResult = dynamic_cast<QPicture*>(outputImage)->save(url.path(), type);
else saveResult = dynamic_cast<QPixmap*>(outputImage)->save(url.path(), type);
}
//if(saveResult == true) KMessageBox::information( this, i18n("Sucessfully exported to \"%1\"").arg( url.filename() ), i18n("Image Export") );
//else KMessageBox::information( this, i18n("Export failed"), i18n("Image Export") );
if (type == "SVG") setSVGExport(false);
if (saveResult == false)
KMessageBox::information(KTechlab::self(), i18n("Export failed"), i18n("Image Export"));
delete outputImage;
}