13f9789996
Current implementation suffers for two issues: 1. Because wxClientDC and wxWindowDC are not distinguished in wxMSWDCImpl::Clear and in both cases DC coordinates are obtained with GetClientRect() Win API what leads to this that for wxWindowDC the entire area is not cleared. 2. Translations like moving logical origin or scaling are not taken into account in wxMemoryDC coordinates calculations (only device origin is included) so for transformed DC calculated coordinates are invalid and finally the entire area is not cleared. To fix these issues we can use GetClipBox() Win API to obtain actual logical coordinates of the clipping box (with all translations and scaling already included) and this way we can avoid using separate methods of retrieving coordinates for wxClientDC, wxWindowDC and wxMemoryDC.
About
wxWidgets is a free and open source cross-platform C++ framework for writing advanced GUI applications using native controls.
wxWidgets allows you to write native-looking GUI applications for all the major desktop platforms and also helps with abstracting the differences in the non-GUI aspects between them. It is free for the use in both open source and commercial applications, comes with the full, easy to read and modify, source and extensive documentation and a collection of more than a hundred examples. You can learn more about wxWidgets at https://www.wxwidgets.org/ and read its documentation online at http://docs.wxwidgets.org/
Platforms
wxWidgets currently supports the following primary platforms:
- Windows XP, Vista, 7, 8 and 10 (32/64 bits).
- Most Unix variants using the GTK+ toolkit (version 2.6 or newer or 3.x).
- OS X (10.7 or newer) using Cocoa (32/64 bits).
Most popular C++ compilers are supported including but not limited to:
- Microsoft Visual C++ 2003 or later (up to 2015).
- g++ 3.4 or later, including MinGW/MinGW-64/TDM under Windows.
- Clang under OS X and Linux.
- Intel icc compiler.
- Oracle (ex-Sun) aCC.
Licence
wxWidgets licence is a modified version of LGPL explicitly allowing not distributing the sources of an application using the library even in the case of static linking.
Further information
If you are looking for support, you can get it from
- Mailing Lists
- Discussion Forums
- #wxwidgets IRC channel
- Stack Overflow
(tag your questions with
wxwidgets) - Please report bugs at http://trac.wxwidgets.org/newticket
We would also gladly welcome your contributions.
Have fun!
The wxWidgets Team.