smile.qml Example File
canvas/smile/smile.qml
import QtQuick 2.0
import "../contents"
import "../../shared"
Item {
id: container
width: 320
height: 480
Column {
spacing: 6
anchors.fill: parent
anchors.topMargin: 12
Text {
font.pointSize: 24
font.bold: true
text: "Smile with arcs"
anchors.horizontalCenter: parent.horizontalCenter
color: "#777"
}
Canvas {
id: canvas
width: 320
height: parent.height - controls.height
antialiasing: true
property color strokeStyle: Qt.darker(fillStyle, 1.6)
property color fillStyle: "#e0c31e"
property int lineWidth: lineWidthCtrl.value
property bool fill: true
property bool stroke: true
property real scale : scaleCtrl.value
property real rotate : rotateCtrl.value
onLineWidthChanged:requestPaint();
onFillChanged:requestPaint();
onStrokeChanged:requestPaint();
onScaleChanged:requestPaint();
onRotateChanged:requestPaint();
onPaint: {
var ctx = canvas.getContext('2d');
var originX = 85
var originY = 75
ctx.save();
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.translate(originX, originX);
ctx.globalAlpha = canvas.alpha;
ctx.strokeStyle = canvas.strokeStyle;
ctx.fillStyle = canvas.fillStyle;
ctx.lineWidth = canvas.lineWidth;
ctx.translate(originX, originY)
ctx.scale(canvas.scale, canvas.scale);
ctx.rotate(canvas.rotate);
ctx.translate(-originX, -originY)
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);
ctx.moveTo(60,60);
ctx.arc(60,60,5,0,Math.PI*2,true);
ctx.moveTo(90 + 5 * Math.cos(0),
65 - 5 * Math.sin(Math.PI*2));
ctx.moveTo(90,60);
ctx.arc(90,60,5,-Math.PI,Math.PI*3,false);
ctx.moveTo(75,70);
ctx.arc(75,70,35,0,Math.PI,false);
ctx.closePath();
if (canvas.fill)
ctx.fill();
if (canvas.stroke)
ctx.stroke();
ctx.restore();
}
}
}
Column {
id: controls
anchors.bottom: parent.bottom
anchors.bottomMargin: 12
Slider {id: lineWidthCtrl ; min: 1 ; max: 10 ; init: 2 ; name: "Outline"}
Slider {id: scaleCtrl ; min: 0.1 ; max: 10 ; init: 1 ; name: "Scale"}
Slider {id: rotateCtrl ; min: 0 ; max: Math.PI*2 ; init: 0 ; name: "Rotate"}
}
}