1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Components project on Qt Labs.
**
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions contained
** in the Technology Preview License Agreement accompanying this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
****************************************************************************/
import Qt 4.7
import "../../Canvas"
Canvas {
width:100
height:100
property variant color: "white"
property Border border: Border{}
property variant gradient;
function createEllipse(ctx, aX, aY, aWidth, aHeight){
var hB = (aWidth / 2) * .5522848,
vB = (aHeight / 2) * .5522848,
eX = aX + aWidth,
eY = aY + aHeight,
mX = aX + aWidth / 2,
mY = aY + aHeight / 2;
ctx.beginPath();
ctx.moveTo(aX, mY);
ctx.bezierCurveTo(aX, mY - vB, mX - hB, aY, mX, aY);
ctx.bezierCurveTo(mX + hB, aY, eX, mY - vB, eX, mY);
ctx.bezierCurveTo(eX, mY + vB, mX + hB, eY, mX, eY);
ctx.bezierCurveTo(mX - hB, eY, aX, mY + vB, aX, mY);
ctx.closePath();
}
onPaint: {
var ctx = getContext();
ctx.save();
ctx.strokeStyle = border.color;
ctx.fillStyle = color;
ctx.lineWidth = 1
createEllipse(ctx, 0, 0, width, height);
var radgrad = ctx.createRadialGradient(45,45,10,52,50,30);
if (gradient != undefined ){
for (var i= 0 ; i< gradient.stops.length; ++i)
radgrad.addColorStop(gradient.stops[i].position, gradient.stops[i].color);
ctx.fillStyle = radgrad;
}
ctx.fill();
ctx.stroke();
ctx.restore();
}
}
|
