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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import QtMultimedia
Item {
id : zoomControl
property real currentZoom : 1
property real maximumZoom : 1
signal zoomTo(real value)
visible: zoomControl.maximumZoom > 1
MouseArea {
id : mouseArea
anchors.fill: parent
property real initialZoom : 0
property real initialPos : 0
onPressed: {
initialPos = mouseY
initialZoom = zoomControl.currentZoom
}
onPositionChanged: {
if (pressed) {
var target = initialZoom * Math.pow(5, (initialPos-mouseY)/zoomControl.height);
target = Math.max(1, Math.min(target, zoomControl.maximumZoom))
zoomControl.zoomTo(target)
}
}
}
Item {
id : bar
x : 16
y : parent.height/4
width : 24
height : parent.height/2
Rectangle {
anchors.fill: parent
smooth: true
radius: 8
border.color: "white"
border.width: 2
color: "black"
opacity: 0.3
}
Rectangle {
id: groove
x : 0
y : parent.height * (1.0 - (zoomControl.currentZoom-1.0) / (zoomControl.maximumZoom-1.0))
width: parent.width
height: parent.height - y
smooth: true
radius: 8
color: "white"
opacity: 0.5
}
Text {
id: zoomText
anchors {
left: bar.right; leftMargin: 16
}
y: Math.min(parent.height - height, Math.max(0, groove.y - height / 2))
text: "x" + Math.round(zoomControl.currentZoom * 100) / 100
font.bold: true
color: "white"
style: Text.Raised; styleColor: "black"
opacity: 0.85
font.pixelSize: 18
}
}
}
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