Rename QGuiGLFormat to QSurfaceFormat, and make QWindow sub-class of
QSurface and QPlatformWindow sub-class of QPlatformSurface, instead of
having QPlatformGLSurface accessor in QWindow.
To enable having a single GL context used for multiple drawables we need
to de-couple the context class a bit more from the window class in the
plugin API. Now contexts are created stand-alone based on a GL format
and a share context, and when calling makeCurrent() a desired surface
is specified. This maps well to GLX, EGL, Cocoa, AGL, and WGL, which all
support this use case.
QWindowContext is renamed to QGuiGLContext, and QWindowFormat is renamed
to QGuiGLFormat. We have the ability to introduce a pbuffer or similar
other offscreen GL drawable abstraction in the future.
This requires adding a couple of window system interface events, namely
Map, Unmap, and Expose. When a widget is minimized on X11 it is
unmapped, and thus update requests should not be delivered. Instead the
event will delivered when the widget is mapped, which causes an Expose
event to be sent. The Unmap and Expose event thus need to be handled in
QWidgetWindow, and Map is also added for the purpose of API symmetry
(and for future needs).
This also makes modal hints set properly for dialogs so the
additional checks during active window change are not needed
anymore.
Reviewed-by: Samuel Rødal
Add and remove windows to the list of top level windows.
Correctly set the visibility flag for windows and implement
a QGuiApplication::topLevelAt() method that uses the
QPlatformScreen.
If a QWindow has a parent but is top-level the corresponding
QPlatformWindow should not be re-parented but instead be made transient
for the parent window if possible.
Create a guikernel/ directory that contains the files that'll go
into libQtGui. What remains in kernel/ will go into QtWidgets.
In addition to that image/, painting/ and text will end up
int QtGui.
Morten Sorvig
Samuel Rødal
Laszlo Agocs
Lars Knoll