Hi Xueqing, I apologize for not responding earlier. I saw your draft proposal, and I had several things I wanted to point out. I am still desperately trying to finish my work project (our deadline has been extended), and will respond in more detail when able.
With that said: I agree with Cyrille about the notepad application. In general, I would devote no more than a day or two to this, as it is the equivalent of a Qt hello world. It's value mostly relies in its ability to help build confidence. Because Qt is a full-featured UI toolkit, a notepad can be created very easily with Qt Designer and a few lines of C++ code. Additionally, the classes you'll be exploring are only tangentially related to LyX. Instead, I would look at creating an example that uses the Model/View classes. Those are directly related to the work you would be doing in LyX. This link provides an overview of the model/view/delegate system in Qt: http://qt-project.org/doc/qt-4.8/model-view-programming.html There are several good examples distributed with the Qt demo programs that can serve as a basis for exploration: http://qt-project.org/doc/qt-4.8/all-examples.html In particular, I would look at the itemviews: http://qt-project.org/doc/qt-4.8/examples-itemviews.html I think most of the things you will need to learn can be picked up in a day or two of exploration. Qt is a very nice toolkit and, as far as these things go, comes with a fairly low learning curve. (Learning standard C++ is much more difficult, in my opinion.) In addition to the model/view system, I think you would also be well served by looking into the Graphics View framework: http://qt-project.org/doc/qt-4.8/graphicsview.html Indeed, I think a great way to learn Qt would be to build a simple notecard app which uses the model for data and QGraphicsScene for drawing. The link below provides some suggestions on how to start: http://stackoverflow.com/questions/3188584/how-to-use-qt-model-view-framework-with-the-graphics-view-framework It might be good for us to visit via Google Talk. Would it be possible for you to email me (off-list) a set of times when you might be available? Cheers, Rob
