a1046a13da
Bug Description: In a GTK+ application with a menu bar, clicking the menu item displays a dialog. However, when the user opens this dialog and drags the parent window's menu bar with the cursor, the dialog gets moved. Issue: When _gtk_gesture_update_point calls the _update_widget_coordinates function, the local variables x and y are not explicitly initialized, leading to arbitrary values. For instance, in my case, x was 32767 and y was -145750164 . These values are used in the subsequent call to gtk_widget_translate_coordinates. In gtk_widget_translate_coordinates, if ancestor is NULL, the function returns FALSE, and dest_x and dest_y are not updated. The incorrect values of x and y cause data->widget_x and data->widget_y to be incorrect, ultimately leading to abnormal x and y values in the gtk_gesture_drag_update function. To avoid this, we should set x and y to values clearly outside the widget. Signed-off-by: Li Kai <likai@kylinos.cn>
General Information
GTK is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK is suitable for projects ranging from small one-off projects to complete application suites.
GTK is free software and part of the GNU Project. However, the licensing terms for GTK, the GNU LGPL, allow it to be used by all developers, including those developing proprietary software, without any license fees or royalties.
The official download locations are:
The official web site is:
Installation
See the file INSTALL.md
How to report bugs
Bugs should be reported to the GTK issue tracker. You will need to create an account for yourself.
In the bug report please include:
-
Information about your system. For instance:
- What operating system and version
- For Linux, what version of the C library
And anything else you think is relevant.
-
How to reproduce the bug.
If you can reproduce it with one of the test programs that are built in the tests/ subdirectory, that will be most convenient. Otherwise, please include a short test program that exhibits the behavior. As a last resort, you can also provide a pointer to a larger piece of software that can be downloaded.
-
If the bug was a crash, the exact text that was printed out when the crash occurred.
-
Further information such as stack traces may be useful, but is not necessary.
Bug fixes and improvements
Changes should be submitted as merge request to the GTK project. If a merge request fixes an issue, the description should mention the issue number.
Release notes
Release notes for releases of GTK 3.x are part of the migration guide in the GTK documentation. See