1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the examples of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:BSD$
10 ** You may use this file under the terms of the BSD license as follows:
12 ** "Redistribution and use in source and binary forms, with or without
13 ** modification, are permitted provided that the following conditions are
15 ** * Redistributions of source code must retain the above copyright
16 ** notice, this list of conditions and the following disclaimer.
17 ** * Redistributions in binary form must reproduce the above copyright
18 ** notice, this list of conditions and the following disclaimer in
19 ** the documentation and/or other materials provided with the
21 ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22 ** the names of its contributors may be used to endorse or promote
23 ** products derived from this software without specific prior written
26 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
39 ****************************************************************************/
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
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);
141 Slider {id:nCtrl; width:300; height:30; min:1; max:10; init:4; name:"N"}
142 Slider {id:rCtrl; width:300; height:30; min:30; max:180; init:100; name:"Radius"}
143 Slider {id:xCtrl; width:300; height:30; min:50; max:300; init:180; name:"X"}
144 Slider {id:yCtrl; width:300; height:30; min:30; max:300; init:220; name:"Y"}
145 Slider {id:alphaCtrl; width:300; height:30; min:0; max:1; init:1; name:"Alpha"}