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Gabriel de Dietrich a198ce8d8f Cocoa QPA Plugin: Remove code depending depending on OS X 10.6 and older 
Snow Leopard is unsupported from 5.4.0.

Change-Id: I5c269cbdc93000a4657b63559cc3c526e298e3db
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@theqtcompany.com>
 		2014-10-27 15:30:38 +01:00
..
android Android: deadlock avoidance 2014-10-20 10:23:47 +02:00
cocoa Cocoa QPA Plugin: Remove code depending depending on OS X 10.6 and older 2014-10-27 15:30:38 +01:00
direct2d Don't use QStringLiteral in comparisons 2014-10-09 09:42:00 +02:00
directfb Update license headers and add new license files 2014-09-24 12:26:19 +02:00
eglfs Update license headers and add new license files 2014-09-24 12:26:19 +02:00
ios Add searchEdit as accessible state 2014-10-25 18:30:08 +02:00
kms kms: Support QOpenGLWidget and QQuickWidget 2014-09-30 18:23:08 +02:00
linuxfb Update license headers and add new license files 2014-09-24 12:26:19 +02:00
minimal Update license headers and add new license files 2014-09-24 12:26:19 +02:00
minimalegl Update license headers and add new license files 2014-09-24 12:26:19 +02:00
offscreen Update license headers and add new license files 2014-09-24 12:26:19 +02:00
openwfd Update license headers and add new license files 2014-09-24 12:26:19 +02:00
qnx Don't use QStringLiteral in comparisons 2014-10-09 09:42:00 +02:00
windows Windows: Initialize the mouse cursor resources 2014-10-22 09:04:23 +02:00
winrt Revert "winrt: Remove depth/stencil from the default window format" 2014-09-29 16:09:35 +02:00
xcb Fix shortcut handling with non-latin layouts 2014-10-27 15:19:02 +01:00
README Remove mentioning of 5.0 Alpha from QPA Readme 2013-09-17 09:31:19 +02:00
platforms.pro Fix no-opengl build 2014-09-01 14:29:36 +02:00

README 

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.