Qt Quick Examples - Canvas¶
This is a collection of QML Canvas examples.
Canvas is a collection of small QML examples relating to the Canvas type. Each example is a small QML file emphasizing a particular type or feature.
Running the Example¶
To run the example from Qt Creator , open the Welcome mode and select the example from Examples . For more information, visit Building and Running an Example.
Red Heart¶
Red heart uses the bezier curve API to stroke and fill a red heart.
ctx.beginPath(); ctx.moveTo(75,40); ctx.bezierCurveTo(75,37,70,25,50,25); ctx.bezierCurveTo(20,25,20,62.5,20,62.5); ctx.bezierCurveTo(20,80,40,102,75,120); ctx.bezierCurveTo(110,102,130,80,130,62.5); ctx.bezierCurveTo(130,62.5,130,25,100,25); ctx.bezierCurveTo(85,25,75,37,75,40); ctx.closePath();
Talk Bubble¶
Talk bubble uses the quadraticCurveTo() API to stroke and fill a customized talk bubble:
<Code snippet "canvas/quadraticCurveTo/quadraticCurveTo.qml:0" not found>This example also demonstrates the fillText() API:
<Code snippet "canvas/quadraticCurveTo/quadraticCurveTo.qml:1" not found>
Squircle¶
Squircle uses a collection of simple moveTo() and lineTo() path APIs to draw a smooth squircle.
Rounded Rectangle¶
Rounded rectangle uses a collection of lineTo() and arcTo() path APIs to draw a rounded rectangle.
Smile Face¶
Smile face uses several paths to draw and fill a smiling face.
Clip¶
Clip uses the clip API to clip a given image.
ctx.clip(); ctx.drawImage(canvas.imagefile, 0, 0);
Tiger¶
Tiger uses the SVG path API to draw a tiger with a collection of SVG path strings.
for (var i = 0; i < Tiger.tiger.length; i++) { if (Tiger.tiger[i].width != undefined) ctx.lineWidth = Tiger.tiger[i].width; if (Tiger.tiger[i].path != undefined) ctx.path = Tiger.tiger[i].path; if (Tiger.tiger[i].fill != undefined) { ctx.fillStyle = Tiger.tiger[i].fill; ctx.fill(); } if (Tiger.tiger[i].stroke != undefined) { ctx.strokeStyle = Tiger.tiger[i].stroke; ctx.stroke(); } }
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