diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/quick/items/context2d/qquickcanvasitem.cpp | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/src/quick/items/context2d/qquickcanvasitem.cpp b/src/quick/items/context2d/qquickcanvasitem.cpp index 9932747dd3..070ede930a 100644 --- a/src/quick/items/context2d/qquickcanvasitem.cpp +++ b/src/quick/items/context2d/qquickcanvasitem.cpp @@ -256,19 +256,6 @@ QQuickCanvasItemPrivate::~QQuickCanvasItemPrivate() The default render target is Canvas.Image and the default renderStrategy is Canvas.Immediate. - \section1 Tiled Canvas - The Canvas item supports tiled rendering by setting \l canvasSize, \l tileSize - and \l canvasWindow properties. - - Tiling allows efficient display of a very large virtual canvas via a smaller - canvas window. The actual memory consumption is in relation to the canvas - window size. The painting code can draw within the virtual canvas without - handling coordinate system transformations. - - The tiles overlapping with the canvas window may be cached eliminating the - need to redraw, which can lead to significantly improved performance in - some situations. - \section1 Pixel Operations All HTML5 2D context pixel operations are supported. In order to ensure improved pixel reading/writing performance the \a Canvas.Image render @@ -431,6 +418,8 @@ void QQuickCanvasItem::setCanvasSize(const QSizeF & size) By default the tileSize is the same as the canvasSize. + \obsolete This feature is incomplete. For details, see QTBUG-33129. + \sa canvasSize, canvasWindow */ QSize QQuickCanvasItem::tileSize() const @@ -464,6 +453,8 @@ void QQuickCanvasItem::setTileSize(const QSize & size) can display different visible areas by changing the canvas windowSize and/or position. + \obsolete This feature is incomplete. For details, see QTBUG-33129 + \sa canvasSize, tileSize */ QRectF QQuickCanvasItem::canvasWindow() const |