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4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the examples of the Qt Toolkit.
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51 Text { font.pointSize:25; text:"Makes squircle icon with clip"; anchors.horizontalCenter:parent.horizontalCenter}
56 property string strokeStyle:"blue"
57 property string fillStyle:"steelblue"
58 property int lineWidth:2
59 property int nSize:nCtrl.value
60 property real radius:rCtrl.value
61 property bool fill:true
62 property bool stroke:false
63 property real px:xCtrl.value
64 property real py:yCtrl.value
65 property real alpha:alphaCtrl.value
66 property string imagefile:"../contents/qt-logo.png"
68 renderTarget:Canvas.Image
69 renderStrategy: Canvas.Immediate
70 Component.onCompleted:loadImage(canvas.imagefile);
72 onAlphaChanged:requestPaint();
73 onRadiusChanged:requestPaint();
74 onLineWidthChanged:requestPaint();
75 onNSizeChanged:requestPaint();
76 onFillChanged:requestPaint();
77 onStrokeChanged:requestPaint();
78 onPxChanged:requestPaint();
79 onPyChanged:requestPaint();
81 onImageLoaded : requestPaint();
86 var ctx = canvas.getContext("2d");
88 var R = canvas.radius;
93 if (N<0.00000000001) M=0.00000000001;
96 ctx.globalAlpha =canvas.alpha;
97 ctx.fillStyle = "gray";
98 ctx.fillRect(0, 0, canvas.width, canvas.height);
100 ctx.strokeStyle = canvas.strokeStyle;
101 ctx.fillStyle = canvas.fillStyle;
102 ctx.lineWidth = canvas.lineWidth;
106 for (i=0; i<(2*R+1); i++){
107 x = Math.round(i-R) + canvas.px;
108 y = Math.round(Math.pow(Math.abs(Math.pow(R,M)-Math.pow(Math.abs(i-R),M)),1/M)) + canvas.py;
116 for (i=(2*R); i<(4*R+1); i++){
117 x =Math.round(3*R-i)+canvas.px;
118 y = Math.round(-Math.pow(Math.abs(Math.pow(R,M)-Math.pow(Math.abs(3*R-i),M)),1/M)) + canvas.py;
131 ctx.drawImage(canvas.imagefile, 0, 0);
142 Slider {id:nCtrl; width:300; height:30; min:1; max:10; init:4; name:"N"}
143 Slider {id:rCtrl; width:300; height:30; min:30; max:180; init:100; name:"Radius"}
144 Slider {id:xCtrl; width:300; height:30; min:50; max:300; init:180; name:"X"}
145 Slider {id:yCtrl; width:300; height:30; min:30; max:300; init:220; name:"Y"}
146 Slider {id:alphaCtrl; width:300; height:30; min:0; max:1; init:1; name:"Alpha"}