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-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 9abca59b1c..9fb49f9c9e 100644
--- a/src/quick/items/context2d/qquickcanvasitem.cpp
+++ b/src/quick/items/context2d/qquickcanvasitem.cpp
@@ -222,6 +222,9 @@ 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:
@@ -231,6 +234,11 @@ 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