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-/****************************************************************************
-**
-** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** 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 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 "style.js" as Style
-
-Item{
- id:canvas
- width:1
- height:1
-
- x: app.width/2+xOffset
- y: app.height/2+yOffset
-
- property real xOffset: 0
- property real yOffset: 0
- property real angle: 0
-
- property real zoomInTarget: 5
- property real scalingFactor: 5
-
- property real rotationOriginX
- property real rotationOriginY
-
- function goHome()
- {
- worldMouseArea.panning = false
- xOffset = 0; //(app.homeCenterX * app.homeScaleFactor);
- yOffset = 0; //(-app.homeCenterY * app.homeScaleFactor);
- rotationOriginX = 0;
- rotationOriginY = 0;
- angle = 0;
- zoomInTarget = app.homeScaleFactor;
- app.navigationState = 0 //home
- app.forceActiveFocus()
- zoomAnimation.restart();
- }
- function goTo(target, updateScalingFactor)
- {
- if (target)
- {
- worldMouseArea.panning = false
- xOffset = -target.x;
- yOffset = -target.y;
- rotationOriginX = target.x;
- rotationOriginY = target.y;
- angle = 0
- zoomInTarget = target.targetScale;
- if (updateScalingFactor)
- scalingFactor = zoomInTarget
- app.navigationState = target.navState
- }
- }
-
- function goNext() {
- goTo(app.getNext(), false);
- navigationAnimation.restartAnimation()
- }
- function goPrevious() {
- goTo(app.getPrevious(), false);
- navigationAnimation.restartAnimation()
- }
-
- function goBack()
- {
- if (app.useGroups && app.navigationState == 2) {
- goTo(app.getCurrentGroup(), false)
- zoomAnimation.restart()
- }
- else
- canvas.goHome()
- }
-
- Behavior on xOffset {
- id: xOffsetBehaviour
- enabled: !worldMouseArea.panning
- NumberAnimation{duration: Style.APP_ANIMATION_DELAY}
- }
-
- Behavior on yOffset {
- id: yOffsetBehaviour
- enabled: !worldMouseArea.panning
- NumberAnimation{duration: Style.APP_ANIMATION_DELAY}
- }
-
- Behavior on rotationOriginX {
- NumberAnimation{
- duration: Style.APP_ANIMATION_DELAY
- }
- }
- Behavior on rotationOriginY {
- NumberAnimation{
- duration: Style.APP_ANIMATION_DELAY
- }
- }
-
- transform: [
-
- Scale{
- id: canvasScale
- origin.x: canvas.rotationOriginX
- origin.y: canvas.rotationOriginY
- xScale: canvas.scalingFactor
- yScale :canvas.scalingFactor
-
- }
- ]
-}