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authorSimon Hausmann <simon.hausmann@theqtcompany.com>2016-01-22 15:20:47 +0100
committerSimon Hausmann <simon.hausmann@theqtcompany.com>2016-01-22 15:21:06 +0100
commitf286db98ee41a8aa71b9a65a235b6d3e265d79f4 (patch)
tree16e17d4c52d35f7e55fc2103db5c96850e9bdfff /src/quick/items/context2d/qquickcanvasitem.cpp
parentce093497f2d4164fa8abc06cf976f9e36798e11e (diff)
parentb60a5dc9405ce89d7a742abc81b906d5c8cf5f7d (diff)
Merge remote-tracking branch 'origin/5.6' into dev
Diffstat (limited to 'src/quick/items/context2d/qquickcanvasitem.cpp')
-rw-r--r--src/quick/items/context2d/qquickcanvasitem.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/quick/items/context2d/qquickcanvasitem.cpp b/src/quick/items/context2d/qquickcanvasitem.cpp
index fcb6c2da8f..68f465cc5a 100644
--- a/src/quick/items/context2d/qquickcanvasitem.cpp
+++ b/src/quick/items/context2d/qquickcanvasitem.cpp
@@ -228,6 +228,9 @@ QQuickCanvasItemPrivate::~QQuickCanvasItemPrivate()
operations. The Canvas output may be saved as an image file or serialized
to a URL.
+ Rendering to the Canvas is done using a Context2D object, usually as a
+ result of the \l paint signal.
+
To define a drawing area in the Canvas item set the \c width and \c height
properties. For example, the following code creates a Canvas item which
has a drawing area with a height of 100 pixels and width of 200 pixels:
@@ -237,6 +240,11 @@ QQuickCanvasItemPrivate::~QQuickCanvasItemPrivate()
id: mycanvas
width: 100
height: 200
+ onPaint: {
+ var ctx = getContext("2d");
+ ctx.fillStyle = Qt.rgba(1, 0, 0, 1);
+ ctx.fillRect(0, 0, width, height);
+ }
}
\endqml