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Diffstat (limited to 'src/plugins/platforms/README')
| -rw-r--r-- | src/plugins/platforms/README | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/plugins/platforms/README b/src/plugins/platforms/README new file mode 100644 index 0000000000..b44d04f58c --- /dev/null +++ b/src/plugins/platforms/README @@ -0,0 +1,49 @@ +The Qt Platform Abstraction - QPA + +QPA is the platform abstraction layer for Qt 5 and replaces QWS and the +platform ports from Qt 4. + +There is currently little documentation for QPA. The best approach for +developing a new platform plugin is to look at the other plugins and +see how they implement the APIs in question. The "minimal" plugin +is a good starting point. The xcb, windows, cocoa, and qnx plugins +are also actively developed and up to date. + +QPA plugins are implemented by subclassing various QPlatform* +classes. There are two "root" classes: QPlatformIntegration for +window system integration and QPlatformTheme for deeper platform +theming and integration. QStyle is not a part of QPA. + +The APIs provided by QPlatformIntegration are at this point (5.0 Alpha) +mostly stable. QPlatformTheme still has ongoing development. There +are no source or binary compatibility guarantees for the QPA classes, +meaning that a platform plugin is only guaranteed to work with the Qt +version it was developed against. API changes will however only be +made in minor releases. (5.1, 5.2, and so on.) + +Class Overview: + +QPlatformIntegration + QPlatformWindow + QPlatformBackingStore + QPlatformOpenGLContext + QPlatformSharedGraphicsCache + QPlatformFontDatabase + QPlatformClipboard + QPlatformDrag + QAbstractEventDispatcher + QPlatformInputContext + QPlatformAccessibility + QPlatformNativeInterface + QPlatformServices + +QPlatformTheme + QPlatformMenu + QPlatformMenuBar + QPlatformDialogHelper + platform palettes + platform fonts + theme hints + +src/platformsupport contains several helper classes for implementing +platform plugins on unix-like systems. |