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/****************************************************************************
**
** Copyright (C) 2013 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
MouseArea{
id: worldMouseArea
anchors.fill: parent
property int oldX: 0
property int oldY: 0
property int startMouseX: 0
property int startMouseY: 0
property bool panning: false
onReleased: {
var dx = mouse.x - startMouseX;
var dy = mouse.y - startMouseY;
// Check the point only if we didn't move the mouse too much
if (!mouse.wasHeld && Math.abs(dx) <= app.tapLimitX && Math.abs(dy) <= app.tapLimitY)
{
panning = false
var target = null;
var object = mapToItem(canvas, mouse.x, mouse.y)
var item = canvas.childAt(object.x,object.y)
if (item) {
if (item.objectName === 'slide')
target = app.selectTarget(item.uid)
else if (item.objectName === 'group')
target = app.selectGroup(item.uid)
}
// If we found target, go to the target
if (target) {
canvas.goTo(target, false, item.objectName === 'slide' ? 2 : 1)
zoomAnimation.restart()
}
else // If not target under mouse -> go home
canvas.goHome()
}
}
onPressed: {
// Save mouse state
oldX = mouse.x
oldY = mouse.y
startMouseX = mouse.x
startMouseY = mouse.y
}
onPositionChanged: {
var dx = mouse.x - oldX;
var dy = mouse.y - oldY;
oldX = mouse.x;
oldY = mouse.y;
if (!zoomAnimation.running && !navigationAnimation.running)
{
panning = true;
canvas.xOffset += dx;
canvas.yOffset += dy;
app.navigationState = 3 //dirty
}
}
onWheel: {
var newScalingFactor = canvas.scalingFactor
if (wheel.angleDelta.y > 0){
newScalingFactor+=canvas.scalingFactor*.05
}else{
newScalingFactor-=canvas.scalingFactor*.05
}
if (newScalingFactor < app.minScaleFactor) newScalingFactor = app.minScaleFactor
if (newScalingFactor > app.maxScaleFactor) newScalingFactor = app.maxScaleFactor
canvas.scalingFactor = newScalingFactor
}
}
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