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6 ** This file is part of the examples of the Qt Toolkit.
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51 Text { font.pointSize:25; text:"Smile with arcs"; anchors.horizontalCenter:parent.horizontalCenter}
58 renderTarget:Canvas.Image
59 renderStrategy: Canvas.Immediate
61 property string strokeStyle:"green"
62 property string fillStyle:"yellow"
63 property int lineWidth:lineWidthCtrl.value
64 property bool fill:true
65 property bool stroke:true
66 property real alpha:alphaCtrl.value
67 property real scaleX : scaleXCtrl.value
68 property real scaleY : scaleYCtrl.value
69 property real rotate : rotateCtrl.value
71 onLineWidthChanged:requestPaint();
72 onFillChanged:requestPaint();
73 onStrokeChanged:requestPaint();
74 onAlphaChanged:requestPaint();
75 onScaleXChanged:requestPaint();
76 onScaleYChanged:requestPaint();
77 onRotateChanged:requestPaint();
79 Behavior on scaleX { SpringAnimation { spring: 2; damping: 0.2; loops:Animation.Infinite } }
80 Behavior on scaleY { SpringAnimation { spring: 2; damping: 0.2; loops:Animation.Infinite} }
81 Behavior on rotate { SpringAnimation { spring: 2; damping: 0.2; loops:Animation.Infinite} }
84 var ctx = canvas.getContext('2d');
86 ctx.clearRect(0, 0, canvas.width, canvas.height);
87 ctx.globalAlpha = canvas.alpha;
88 ctx.strokeStyle = canvas.strokeStyle;
89 ctx.fillStyle = canvas.fillStyle;
90 ctx.lineWidth = canvas.lineWidth;
91 ctx.scale(canvas.scaleX, canvas.scaleY);
92 ctx.rotate(canvas.rotate);
94 ctx.moveTo(75 + 50 * Math.cos(0),
95 75 - 50 * Math.sin(Math.PI*2));
96 ctx.arc(75,75,50,0,Math.PI*2,true); // Outer circle
98 ctx.arc(75,70,35,0,Math.PI,false); // Mouth (clockwise)
100 ctx.arc(60,65,5,0,Math.PI*2,true); // Left eye
101 ctx.moveTo(90 + 5 * Math.cos(0),
102 65 - 5 * Math.sin(Math.PI*2));
104 ctx.arc(90,65,5,0,Math.PI*2,true); // Right eye
120 Slider {id:lineWidthCtrl; width:300; height:30; min:1; max:10; init:2; name:"Line width"}
121 Slider {id:scaleXCtrl; width:300; height:30; min:0.1; max:10; init:1; name:"ScaleX"}
122 Slider {id:scaleYCtrl; width:300; height:30; min:0.1; max:10; init:1; name:"ScaleY"}
123 Slider {id:rotateCtrl; width:300; height:30; min:0; max:Math.PI*2; init:0; name:"Rotate"}
124 Slider {id:alphaCtrl; width:300; height:30; min:0; max:1; init:1; name:"Alpha"}