e24e9323e0
Add wxPNGImageData and use it to store variables that used to be local
in wxPNGHandler::LoadFile() and could be clobbered by the use of
longjmp() and pass these variables to DoLoadPNGFile(), which still uses
longjmp(), whereas LoadFile() doesn't any longer.
In addition to fixing the warning, this allows to use C++ dtors for
freeing memory and makes the code shorter and, arguably, more clear than
the original version (although written in an unusual way) and definitely
more clear than the version with the warning fix.
This reverts commit 99ea06203a ("Fix
clobbering warning") and replaces it with a different solution to the
same problem.
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 2017).
- 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.
Building
For building the library, please see platform-specific documentation under
docs/<port> directory.
If you're building the sources checked out from Git, and not from a released versions, please see these additional Git-specific notes.
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 https://trac.wxwidgets.org/newticket
We would also gladly welcome your contributions.
Have fun!
The wxWidgets Team.