Compositor: Fix coordinate system inconsistencies

Several properties were using pixel coordinates and surface coordinates without
converting.

[ChangeLog][Compositor] QWaylandSurface::destinationSize has been added which
returns the size of the surface that will be displayed on the screen in surface
coordinates.

[ChangeLog][Compositor] Fixed a bug where QWaylandSurface::inputRegionContains
would return true for some points outside surfaces with buffer scale > 1.

[ChangeLog][Compositor] Fixed a bug which caused ShellSurfaceItems for surfaces
with buffer scale > 1 to move too much when resizing interactively.

It also gets rid of all calls to QWaylandSurface::size, which confusingly
returns the size of the surface's buffer in pixel coordinates. Most properties
now use destionationSize's surface coordinates consistently. Hopefully,
QWaylandSurface::size can be renamed or removed in Qt 6.

Change-Id: I007256a8df7759cf74fbfd51624fa1f90c083336
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/wayland/minimal-cpp/window.cpp b/examples/wayland/minimal-cpp/window.cpp
index 673e15fd8..f345bd51f 100644
--- a/examples/wayland/minimal-cpp/window.cpp
+++ b/examples/wayland/minimal-cpp/window.cpp
@@ -95,7 +95,7 @@ void Window::paintGL()
         GLuint textureId = texture->textureId();
         QWaylandSurface *surface = view->surface();
         if (surface && surface->hasContent()) {
-            QSize s = surface->size();
+            QSize s = surface->destinationSize();
             view->initPosition(size(), s);
             QPointF pos = view->globalPosition();
             QRectF surfaceGeometry(pos, s);