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Applications can request the color scheme to be either explicitly light
or dark, or to follow the system default by setting the scheme to
Qt::ColorScheme::Unknown.
Setting the color scheme will make the request to the QPlatformTheme
implementation, which can then use the appropriate implementation to
set the application's appearance so that both palette and window
decoration follow the requested color scheme. This should trigger
theme change and palette change events. A change to the effective
scheme should then call back into QStyleHintsPrivate::updateColorScheme,
which will emit the changed signal for the property.
Implement this for macOS (Cocoa), iOS, Android, and Windows.
On macOS, we have to use deprecated AppKit APIs; the replacements for
those APIs are not suitable for this use case. On iOS, the setting is
for each UIWindow, which we can update or initialize based on an
explicitly requested scheme.
On Android we can piggy-back on the logic added when dark theme support
was introduced in
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| aggregate | ||
| corelib | ||
| dbus | ||
| gui | ||
| network | ||
| opengl | ||
| qmake | ||
| qtconcurrent | ||
| qtestlib | ||
| sql | ||
| vulkan | ||
| widgets | ||
| xml | ||
| CMakeLists.txt | ||
| README | ||
| examples.pro | ||
README
Qt is supplied with a number of example applications that have been written to provide developers with examples of the Qt API in use, highlight good programming practice, and showcase features found in each of Qt's core technologies. Documentation for examples can be found in the Examples section of the Qt documentation.