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<table border="0" cellspacing="0" cellpadding="3" width="100%"><tr><td> <div align="center" id="bldcontent"> <a href="../default.htm"><img src="../images/opendocs.png" width="63" height="76" border="0"></a> <br> <div class="symbol">Your OpenSource Publisher™</div> </div> </td></tr></table> <div align="center" class="author"> <a href="../products.lxp">Products</a> | <a href="../wheretobuy.lxp">Where to buy</a> | <a href="../bookstore.lxp">Retailers</a> | <a href="../faq.lxp">FAQ</a> | <a href="../writeforus.lxp">Write for Us.</a> | <a href="#contact">Contact Us.</a> </div> <table border="0" cellspacing="3" cellpadding="0" width="100%"><tr><td width="100%"> <div class="content"> <table border="0" cellspacing="2" cellpadding="0" width="100%"><tr><td width="100%"> <div align="center"><H4 CLASS="AUTHOR"><A NAME="AEN5">Boudewijn Rempt</A><br><a href="../../https@secure.linuxports.com/opendocs/default.htm"><img src=odpyqt125.png></a><br>ISBN: 0-97003300-4-4<br><a href="../../https@secure.linuxports.com/opendocs/default.htm">Available from bookstores everywhere or you can order it here.</a><p>You can download the source files for the book <a href="pyqtsrc.tgz">(code / eps) here.</a><hr></div> <HTML><HEAD><TITLE>Adding printing to Kalam</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.72"><LINKREL="HOME"TITLE="GUI Programming with Python: QT Edition"HREF="book1.htm"><LINKREL="UP"TITLE="Printing"HREF="c8100.htm"><LINKREL="PREVIOUS"TITLE="Printing"HREF="c8100.htm"><LINKREL="NEXT"TITLE="Putting ink to paper"HREF="x8148.htm"></HEAD><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">GUI Programming with Python: QT Edition</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><A accesskey="P" href="index.lxp@lxpwrap=c8100_252ehtm.htm">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Chapter 24. Printing</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><A accesskey="N" href="index.lxp@lxpwrap=x8148_252ehtm.htm">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1">Adding printing to Kalam</A></H1><P>Adding a file menu entry and a toolbar button for the print functionality is easy enough. We don't need to have a separate printer setup and print dialog. We are going to show the printing setup dialog every time a user wants to print a document. Because we use one central <TTCLASS="CLASSNAME">QPrinter</TT> object, settings remain valid for the duration of the application. You might want to save the printer settings to the configuration file (I haven't done that here).</P><PRECLASS="PROGRAMLISTING"> # fragment from kalamapp.py def initActions(self): self.actions = {} ... self.actions["filePrint"] = QAction("Print", QIconSet(QPixmap(fileprint)), "&Print", QAccel.stringToKey("CTRL+P"), self) self.connect(self.actions["filePrint"], SIGNAL("activated()"), self.slotFilePrint) ... def initMenuBar(self): self.fileMenu = QPopupMenu() ... self.actions["filePrint"].addTo(self.fileMenu) ... self.menuBar().insertItem("&File", self.fileMenu) ... def initToolBar(self): self.fileToolbar = QToolBar(self, "file operations") ... self.actions["filePrint"].addTo(self.fileToolbar) ... def setActionsEnabled(self, *args): enabled = self.docManager.numberOfDocuments() ... self.actions["filePrint"].setEnabled(enabled) ... def slotFilePrint(self): if self.printer.setup(): print "Printing" ... </PRE><P>The printer setup dialog is shown whenever the <TTCLASS="FUNCTION">slotFilePrint</TT> method is called. Printing will commence when the user presses "OK." </P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><A accesskey="P" href="index.lxp@lxpwrap=c8100_252ehtm.htm">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><A accesskey="H" href="index.lxp@lxpwrap=book1_252ehtm">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><A accesskey="N" href="index.lxp@lxpwrap=x8148_252ehtm.htm">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Printing</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><A accesskey="U" href="index.lxp@lxpwrap=c8100_252ehtm.htm">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Putting ink to paper</TD></TR></TABLE></DIV></BODY></HTML> </td> </tr> </table> </td> </tr> </table> ⌨️ 快捷键说明
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