Le 20/10/12 18:21, Ajay Garg a écrit : > > > On Sat, Oct 20, 2012 at 8:43 PM, Vincent Vande Vyvre > <vincent.vandevy...@swing.be <mailto:vincent.vandevy...@swing.be>> wrote: > > Le 20/10/12 15:59, Ajay Garg a écrit : > > Hi all. > > > > I have been looking for ways to get things exported to PDF; I > must say > > that I am pleasantly surprised by the ease of exporting a > > text-document to a PDF :) > > > > Googling also says that exporting an image to pdf is "easier" than > > exporting a text-documnt in PyQt; unfortunately for me, I have not > > been able to find the steps to do that :-\ > > So, I will be grateful if I could be directed to a "Hello World" > > program to do this. > > > > > > My requirement is very simple :: > > > > * Read an image file (png/jpeg, etc). > > * Export to PDF; simple. No editing of pixels, > or any > > other stuff. > > > > > > > > Looking forward to some pointers :) > > > > > > > > Regards, > > Ajay > > > > > > > > _______________________________________________ > > PyQt mailing list PyQt@riverbankcomputing.com > <mailto:PyQt@riverbankcomputing.com> > > http://www.riverbankcomputing.com/mailman/listinfo/pyqt > Minimalistic example: > > #---------------------------------------------------------------------- > image = QtGui.QImage("myImage.jpg") > printer = QtGui.QPrinter() > printer.setResolution(300) > printer.setOutputFormat(QtGui.QPrinter.PdfFormat) > printer.setOutputFileName("myImage.pdf") > > painter = QtGui.QPainter() > painter.begin(printer) > painter.drawImage(target, image, source) > painter.end() > > #------------------------------------------------------------------------ > > where target & source are QtCore.QRectF(sheet) & QtCore.QRectF(image) > > A more complete example here: > > > http://bazaar.launchpad.net/~vincent-vandevyvre/oqapy/serie-1.0/view/head:/oqapy-1.0/printing.py > > <http://bazaar.launchpad.net/%7Evincent-vandevyvre/oqapy/serie-1.0/view/head:/oqapy-1.0/printing.py> > > > > Thanks a ton Vincent !! > I could get myself started with image-exporting to pdf (all courtesy > you :) ) > > > One thing I must tell you; right now, I just got myself bootstrapped, > without truly putting the correct values in "target" and "source". > I have two queries though :: > > a) > "target" represents the target-canvas, of which the image will take > the size, right? > > > > b) > If yes, then I find it a little odd, that no such target is > specified, while exporting a text-document to pdf. > For example, here is my code to export a text-document to pdf :: > > #################################################################################### > from PyQt4.QtGui import * > import sys > > app = QApplication(sys.argv) > > text_file_path = open('sample.py').read() > doc = QTextDocument(text_file_path) > > printer = QPrinter(QPrinter.HighResolution) > printer.setOutputFormat(QPrinter.PdfFormat) > printer.setOutputFileName('sample.pdf') > > doc.print_(printer) > #################################################################################### > > > Here, we can see that no "target" QtCore.QRectf is passed to the > printing options. > > Any idea of this descrepancy? (as to why the "target" canvas is > specified while exporting an image; but not when exporting a > text-document, though the "target" canvas size is usually fixed, > irrespective of the source mime-type).
Because in my example I've used QPainter.drawImage() and not QTextDocument.print_(). See the doc: http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qpainter.html#drawImage you can also use only the origin of the image instead of target-source, but you'll need to handle the margin parameters of your printer. > > > Thanks anyways for your already rendered massive help :) > > > > Regards, > Ajay > -- Vincent V.V. Oqapy <https://launchpad.net/oqapy> . Qarte <https://launchpad.net/qarte> . PaQager <https://launchpad.net/paqager> _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
