bezierCurve.qml Example File

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 import QtQuick 2.0
 import "../contents"
 import "../../shared"

 Item {
     id:container
     width: 320
     height: 480

     Column {
         spacing:5
         anchors.fill: parent
         anchors.topMargin: 12

         Text {
             font.pointSize: 24
             font.bold: true
             text: "Bezier Curve"
             anchors.horizontalCenter: parent.horizontalCenter
             color: "#777"
         }

         Canvas {
             id:canvas
             width:320
             height:280
             property color strokeStyle:  Qt.darker(fillStyle, 1.4)
             property color fillStyle: "#b40000" // red
             property int lineWidth: lineWidthCtrl.value
             property bool fill: true
             property bool stroke: true
             property real alpha: 1.0
             property real scale : scaleCtrl.value
             property real rotate : rotateCtrl.value
             antialiasing: true

             onLineWidthChanged:requestPaint();
             onFillChanged:requestPaint();
             onStrokeChanged:requestPaint();
             onScaleChanged:requestPaint();
             onRotateChanged:requestPaint();

             onPaint: {
                 var ctx = canvas.getContext('2d');
                 var originX = 85
                 var originY = 75
                 ctx.save();
                 ctx.clearRect(0, 0, canvas.width, canvas.height);
                 ctx.translate(originX, originX);
                 ctx.globalAlpha = canvas.alpha;
                 ctx.strokeStyle = canvas.strokeStyle;
                 ctx.fillStyle = canvas.fillStyle;
                 ctx.lineWidth = canvas.lineWidth;

                 ctx.translate(originX, originY)
                 ctx.scale(canvas.scale, canvas.scale);
                 ctx.rotate(canvas.rotate);
                 ctx.translate(-originX, -originY)

                 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();
                 if (canvas.fill)
                     ctx.fill();
                 if (canvas.stroke)
                     ctx.stroke();
                 ctx.restore();
             }
         }
     }
     Column {
         id: controls
         anchors.bottom: parent.bottom
         anchors.bottomMargin: 12
         Slider {id: lineWidthCtrl; min: 1; max: 10; init: 2; name: "Outline"}
         Slider {id: scaleCtrl; min: 0.1; max: 10; init: 1; name: "Scale"}
         Slider {id: rotateCtrl; min: 0; max: Math.PI*2; init: 0; name: "Rotate"}
     }
 }