diff options
author | Gunnar Sletta <gunnar@sletta.org> | 2015-11-26 11:28:07 +0100 |
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committer | Gunnar Sletta <gunnar@sletta.org> | 2015-11-30 07:25:44 +0000 |
commit | 4ce41d7fdcb07b515f9466c8d532b7f737aa24c9 (patch) | |
tree | 9ee10fa252200fa88346c4589c588cb9de16c8c8 /src | |
parent | cf59a0acaee9b47bd371dd3ab8f0a6bd1f5b6d35 (diff) |
docfix: Make it clearer how Context2D relates to Canvas
Change-Id: Id64aff29ef8bc7cbb4f7fc46b1a0d30a47585055
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>
Diffstat (limited to 'src')
-rw-r--r-- | src/quick/items/context2d/qquickcanvasitem.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/quick/items/context2d/qquickcanvasitem.cpp b/src/quick/items/context2d/qquickcanvasitem.cpp index 6ef2d6123b..f0a56867f1 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 |