| 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. |
| |
| 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. |
