diff options
| author | Thomas Senyk <thomas.senyk@qt.io> | 2022-12-20 10:36:53 +0100 |
|---|---|---|
| committer | Thomas Senyk <thomas.senyk@qt.io> | 2023-02-01 09:06:16 +0100 |
| commit | 185b0d5f215df0254b38ac8a7dfb72c20ce9bc1e (patch) | |
| tree | d24f393aed0d1bc16ba927b8ec84624416c370b7 | |
| parent | d7f47127dadc10adb2c98f1803f5a8d2966491ba (diff) | |
Fix QQuickCanvasItem in case of invalidateSceneGraph()
Adding requestPaint() at the end of invalidateSceneGraph()
will make sure that painting is trigger properly again,
including the (re-)creation of the painting context.
As that request of painting will also recreate the painting
context, it will also allow the creation of a new QSGNode
Without this patch a nullptr will be returned as QSGNode
until a "proper" dirty or update() happens due to property changes
or explicit update calls.
Pick-to: 6.5 6.4 6.2
Change-Id: If1e79d135d3d1f5253cb41a3be1630cfed3865dd
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
| -rw-r--r-- | src/quick/items/context2d/qquickcanvasitem.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/quick/items/context2d/qquickcanvasitem.cpp b/src/quick/items/context2d/qquickcanvasitem.cpp index a6d58fec2c..0eb4fe40d3 100644 --- a/src/quick/items/context2d/qquickcanvasitem.cpp +++ b/src/quick/items/context2d/qquickcanvasitem.cpp @@ -616,6 +616,10 @@ void QQuickCanvasItem::invalidateSceneGraph() d->textureProvider = nullptr; delete d->nodeTexture; d->nodeTexture = nullptr; + + // As we can expect(/hope) that the SG will be "good again", we can requestPaint ( which does 'markDirty(canvasWindow);' ) + // Otherwise this Canvas will be "blank" when SG comes back + requestPaint(); } void QQuickCanvasItem::schedulePolish() |