I noticed a minor problem when matplolib embedded in Qt and used NavigationTollbar Save button.
When I press Save button and select from File type combo some format (PDF or any other) but don't change defaul filename "image" the figure always saved in PNG format. So if i want to save figure in format different from PNG I must not only select desired file type, but also change default filename to another one.
Is this bug or maybe this is a feature?
Tested on Windows XP Pro SP3, Python 2.5.2, matplotlib-0.98.5.2 and matplotlib-0.99.0, PyQt 4.4.3