e2bfba21fe
To determine which wxSpinButton arrow was clicked, in the action handler there is compared current NSStepper value (after the actual change) with the value before the change. This former value is fetched in the internal mouse click event handler which is invoked before the action handler. This method of determining a delta works fine as long as the current value remains unchanged between the execution of the internal mouse click event handler and the action handler. But if the current value is explicitly changed (by calls to SetValue(), SetRange()) in some handler(s) invoked between these two (like e.g. bound EVT_LEFT_DOWN handler), calculated delta can be invalid and therefore wrong EVT_SPIN_DOWN/UP events can be sent. To get correct delta value we should to keep track of all explicit changes made to the current value starting from the mouse click and up to the entry to the action handler. Closes #17955.
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.
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wxwidgets) - Please report bugs at https://trac.wxwidgets.org/newticket
We would also gladly welcome your contributions.
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The wxWidgets Team.