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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.0
import "../contents"
Item {
id:container
width:360
height:600
Column {
spacing:5
anchors.fill:parent
Text { font.pointSize:25; text:"Smile with arcs"; anchors.horizontalCenter:parent.horizontalCenter}
Canvas {
id:canvas
width:360
height:360
smooth:true
renderTarget:Canvas.Image
renderInThread:false
property string strokeStyle:"green"
property string fillStyle:"yellow"
property int lineWidth:lineWidthCtrl.value
property bool fill:true
property bool stroke:true
property real alpha:alphaCtrl.value
property real scaleX : scaleXCtrl.value
property real scaleY : scaleYCtrl.value
property real rotate : rotateCtrl.value
onLineWidthChanged:requestPaint();
onFillChanged:requestPaint();
onStrokeChanged:requestPaint();
onAlphaChanged:requestPaint();
onScaleXChanged:requestPaint();
onScaleYChanged:requestPaint();
onRotateChanged:requestPaint();
Behavior on scaleX { SpringAnimation { spring: 2; damping: 0.2; loops:Animation.Infinite } }
Behavior on scaleY { SpringAnimation { spring: 2; damping: 0.2; loops:Animation.Infinite} }
Behavior on rotate { SpringAnimation { spring: 2; damping: 0.2; loops:Animation.Infinite} }
onPaint: {
var ctx = canvas.getContext('2d');
ctx.reset();
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.globalAlpha = canvas.alpha;
ctx.strokeStyle = canvas.strokeStyle;
ctx.fillStyle = canvas.fillStyle;
ctx.lineWidth = canvas.lineWidth;
ctx.scale(canvas.scaleX, canvas.scaleY);
ctx.rotate(canvas.rotate);
ctx.beginPath();
ctx.moveTo(75 + 50 * Math.cos(0),
75 - 50 * Math.sin(Math.PI*2));
ctx.arc(75,75,50,0,Math.PI*2,true); // Outer circle
ctx.moveTo(75,70);
ctx.arc(75,70,35,0,Math.PI,false); // Mouth (clockwise)
ctx.moveTo(60,65);
ctx.arc(60,65,5,0,Math.PI*2,true); // Left eye
ctx.moveTo(90 + 5 * Math.cos(0),
65 - 5 * Math.sin(Math.PI*2));
ctx.moveTo(90,65);
ctx.arc(90,65,5,0,Math.PI*2,true); // Right eye
ctx.closePath();
if (canvas.fill)
ctx.fill();
if (canvas.stroke)
ctx.stroke();
}
}
Rectangle {
id:controls
width:360
height:160
Column {
spacing:3
Slider {id:lineWidthCtrl; width:300; height:30; min:1; max:10; init:2; name:"Line width"}
Slider {id:scaleXCtrl; width:300; height:30; min:0.1; max:10; init:1; name:"ScaleX"}
Slider {id:scaleYCtrl; width:300; height:30; min:0.1; max:10; init:1; name:"ScaleY"}
Slider {id:rotateCtrl; width:300; height:30; min:0; max:Math.PI*2; init:0; name:"Rotate"}
Slider {id:alphaCtrl; width:300; height:30; min:0; max:1; init:1; name:"Alpha"}
}
}
}
}
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