Qt Quick Examples - Canvas#

This is a collection of QML Canvas examples.

../_images/qml-canvas-example.png

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();
    }
}

Example project @ code.qt.io