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+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt 5 launch demo.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 Digia Plc 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 QtQuick.Particles 2.0
+import "presentation"
+
+Slide {
+ id: slide
+
+ title: "Qt Quick - Canvas"
+
+
+
+ Rectangle {
+ height: parent.height
+ width: parent.width * 0.45
+ anchors.right: parent.right;
+ antialiasing: true
+ radius: slide.height * 0.03;
+ color: Qt.rgba(0.0, 0.0, 0.0, 0.2);
+ Canvas {
+ id:canvas
+ anchors.fill: parent;
+
+ renderTarget: Canvas.Image;
+ antialiasing: true;
+ onPaint: {
+ eval(editor.text);
+ }
+ }
+ }
+
+ Rectangle {
+ height: parent.height
+ width: parent.width * 0.45
+ anchors.left: parent.left
+ antialiasing: true
+ radius: slide.height * 0.03;
+ color: Qt.rgba(0.0, 0.0, 0.0, 0.2);
+
+ clip: true;
+
+ TextEdit {
+ id: editor
+ anchors.fill: parent;
+ anchors.margins: 10
+
+ font.pixelSize: 16
+ color: "white"
+ font.family: "courier"
+ font.bold: true
+
+ text:
+"var ctx = canvas.getContext('2d');
+ctx.save();
+ctx.clearRect(0, 0, canvas.width, canvas.height);
+ctx.strokeStyle = 'palegreen'
+ctx.fillStyle = 'limegreen';
+ctx.lineWidth = 5;
+
+ctx.beginPath();
+ctx.moveTo(100, 100);
+ctx.lineTo(300, 100);
+ctx.lineTo(100, 200);
+ctx.closePath();
+ctx.fill();
+ctx.stroke();
+
+ctx.fillStyle = 'aquamarine'
+ctx.font = '20px sansserif'
+ctx.fillText('HTML Canvas API!', 100, 300);
+ctx.fillText('Imperative Drawing!', 100, 340);
+
+ctx.restore();
+"
+ onTextChanged: canvas.requestPaint();
+
+ onCursorRectangleChanged: {
+ emitter.burst(10)
+
+ }
+
+ ParticleSystem {
+ id: sys1
+ running: slide.visible
+ }
+
+ ImageParticle {
+ system: sys1
+ source: "images/particle.png"
+ color: "white"
+ colorVariation: 0.2
+ alpha: 0
+ }
+
+ Emitter {
+ id: emitter
+ system: sys1
+
+ x: editor.cursorRectangle.x - editor.cursorRectangle.height / 2;
+ y: editor.cursorRectangle.y
+ width: editor.cursorRectangle.height
+ height: editor.cursorRectangle.height
+ enabled: false
+
+ lifeSpan: 1000
+
+ velocity: PointDirection { xVariation: 30; yVariation: 30; }
+ acceleration: PointDirection {xVariation: 30; yVariation: 30; y: 100 }
+
+ endSize: 0
+
+ size: 4
+ sizeVariation: 2
+ }
+
+ }
+
+
+
+
+ }
+}