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Artur Wieczorek
c55bbdf700
Currently region given in device coordinates is decomposed into the stripes which are next transformed to the logical coordinates required by underlying wxGraphicsContext::Clip() function. Some of these stripes given in device coordinates can have 1-pixel height what after transformation to logical coordinates can give zero-height stripes (after rounding). This can lead to the situation that in the region transformed to logical coordinates some stripes can disappear and final transformed region shape is different from the source shape (it has gaps).
To fix this issue device coordinates of the region are not manually transformed to the logical coordinates but instead wxGraphicsContext's is temporarily set to the state where its logical coordinates are equivalent to device coordinates and thus clipping region can be applied directly.
Solution for wxMSW, wxGTK is implemented in ea8cb7a24a.
Closes #17609.
wxWidgets 3.1.1 Release Notes ============================= Welcome to the latest development release of wxWidgets, 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/ Documentation is available online at: * http://docs.wxwidgets.org/3.1.1/ wxWidgets sources and binaries for the selected platforms are available for download from: * https://github.com/wxWidgets/wxWidgets/releases/tag/v3.1.1/ Changes ------- Compared to the stable 3.0.x series, this version brings many improvements and even more bug fixes, please see the change log https://raw.githubusercontent.com/wxWidgets/wxWidgets/v3.1.1/docs/changes.txt for the incomplete list of the most important ones. Here is the maximally condensed summary: - New classes: wxActivityIndicator, wxAddRemoveCtrl, wxAppProgressIndicator, wxNativeWindow, wxPowerResourceBlocker. - And methods: wxDateTime::GetWeekBasedYear(), wxListBox::GetTopItem(), wxProcess::Activate(), wxTextEntry::ForceUpper(), several ones in wxRendererNative, wxStandardPaths::GetUserDir(), wxUIActionSimulator ::Select() and many others. Also new wxEVT_MAGNIFY event. - Significant improvements to: wxBusyInfo, wxNotificationMessage. - All around better support for high DPI monitors. - Much newer versions of bundled 3rd party libraries (notably libpng) and support for GStreamer 1.0 under Unix. - Revamped OpenGL support better suited to modern OpenGL (3.2+). - Further C++11 support improvements. - Support for latest compilers: MSVS 2015, g++ 5.3, clang 3.8. - A lot of bug fixes in wxGTK3 and wxOSX/Cocoa ports. - New experimental wxQt port. 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