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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
Item {
width: 640
height: 480
Rectangle {
id: map
color: "aqua"
x: (parent.width - width) / 2
y: (parent.height - height) / 2
width: image.width
height: image.height
transform: Rotation {
id: tilt
origin.x: width / 2
origin.y: height / 2
axis { x: 1; y: 0; z: 0 }
angle: tiltHandler.persistentTranslation.y / -2
}
WheelHandler {
id: wheelHandler
objectName: "vertical mouse wheel for scaling"
property: "scale"
onWheel: function(event) {
console.log("rotation " + event.angleDelta + " scaled " + rotation + " @ " + point.position + " => " + map.scale)
}
}
WheelHandler {
id: horizontalWheelHandler
objectName: "horizontal mouse wheel for side-scrolling"
property: "x"
orientation: Qt.Horizontal
}
Image {
id: image
anchors.centerIn: parent
fillMode: Image.PreserveAspectFit
source: "images/map.svgz"
Component.onCompleted: { width = implicitWidth; height = implicitHeight }
}
Text {
anchors.centerIn: parent
text: image.sourceSize.width + " x " + image.sourceSize.height +
" scale " + map.scale.toFixed(2) + " active scale " + pinch.activeScale.toFixed(2)
}
}
DragHandler {
objectName: "single-point drag"
target: map
}
DragHandler {
id: tiltHandler
objectName: "two-point tilt"
minimumPointCount: 2
maximumPointCount: 2
xAxis.enabled: false
target: null
}
PinchHandler {
id: pinch
objectName: "two-point pinch"
target: map
minimumScale: 0.1
maximumScale: 10
xAxis.enabled: false
yAxis.enabled: false
onActiveChanged: if (!active) reRenderIfNecessary()
grabPermissions: PinchHandler.TakeOverForbidden // don't allow takeover if pinch has started
}
function reRenderIfNecessary() {
var newSourceWidth = image.sourceSize.width * pinch.scale
var ratio = newSourceWidth / image.sourceSize.width
if (ratio > 1.1 || ratio < 0.9)
image.sourceSize.width = newSourceWidth
}
}
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