Python Gui编程的教程和源码

Rapid GUI Programming with Python and Qt: The Definitive Guide to PyQt Programming by Mark Summerfield ISBN: 0132354187 All the example programs and modules are copyright (c) Qtrac Ltd. 2007-8. They are free software: you can redistribute them and/or modify them under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or version 3 of the License, or (at your option) any later version. They are provided for educational purposes and are distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public Licenses (in files gpl-2.0.txt and gpl-3.0.txt) for more details. Two helper programs are provided: mkpyqt.py (a console application), and makepyqt.pyw (a GUI application). These programs both do the same thing: They run pyuic4, pyrcc4, pylupdate4, and lrelease with the correct command line arguments. In some cases you may need to set the path to pyuic4 (pyuic4.bat on Windows), and possibly to the other programs as well. For mkpyqt.py this means editing the file itself (the paths are in variables near the top); for makepyqt.pyw, click "More->Tool paths" and set the paths there. The use of these programs is described in Chapter 7. All the book's examples are designed to be educational, and many are also designed to be useful. I hope that you find them helpful, and are perhaps able to use some of them as starting points for your own projects. For commercial licenses visit http://www.trolltech.com for Qt, and http://www.riverbankcomputing.co.uk for PyQt. Python itself can be obtained from http://www.python.org and can be used for both commercial and non-commercial purposes free of charge. See Appendix A for information on obtaining and installing the necessary software. Most of the icons are from KDE (The `K' Desktop Environment), and come under KDE's LGPL license. (Visit http:///www.kde.org for more information.) STOP PRESS Chapter 3 describes an "OrderedDict". Unfortunately this name is incorrect, it should have been called "SortedDict". (In Python mapping terminology "ordered" means "order of insertion" and "sorted" means "order of key"---I had used the C++ terminology.) I have kept the wrongly named ordereddict.py module in the archive---after all, it works fine---but also provided a correctly named SortedDict.py module that has the same behavior, and that ought to be used instead. I have put a more versatile (but theoretically slower) sorteddict module, with a different API, on PyPI: http://pypi.python.org/pypi/sorteddict Chapter 4. I've now added a new example, currency2.pyw that has one extra line (to include Canadian dollars) and one line different (to sort currency names case-insensitively) compared to currency.pyw. I've also done a small theoretical improvement to the code. Chapter 9 shows an SDI text editor (sditexteditor.pyw) that has a Window menu in every main window with the list of all the application's windows. This application's Window menu works on the basis of window titles. But window titles may not be unique. For this reason I have now added a new version (sditexteditor2.pyw) that has more sophisticated updateWindowMenu() and raiseWindow() methods that use each window's unique id() rather than their possibly non-unique window title. Chapter 13 shows a PythonHighlighter (color syntax highlighting) class in the pythoneditor.pyw and pythoneditor_ans.pyw applications. A slightly more sophisticated version of this class is in my Sandbox application. Sandbox is available from: http://pypi.python.org/pypi/Sandbox I have now added pythoneditor2.pyw which is a copy of pythoneditor_ans.pyw but with the PythonHighlighter replaced with one that uses similar logic as the one used in Sandbox since this works better in more corner cases (but is slower). I've also added printing2.pyw which has a bugfix and some tiny improvements for both HTML and QPainter printing.