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40 lines
1.4 KiB
QML
40 lines
1.4 KiB
QML
// Based on https://projects.forum.nokia.com/qmluiexamples/browser/qml/qmluiexamples/Scrollable/ScrollBar.qml
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import Qt 4.7
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Rectangle {
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// The flickable to which the scrollbar is attached to, must be set
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property variant flickableItem
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// True for vertical ScrollBar, false for horizontal
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property bool vertical: true
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property int scrollbarWidth: 20
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property string color: "white"
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property real baseOpacityOff: 0.4
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property real baseOpacityOn: 0.9
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radius: vertical ? width/2 : height/2
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function sbOpacity()
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{
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if (vertical ? (height >= parent.height) : (width >= parent.width)) {
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return 0;
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} else {
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return (flickableItem.flicking || flickableItem.moving) ? baseOpacityOn : baseOpacityOff;
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}
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}
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// Scrollbar appears automatically when content is bigger than the Flickable
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opacity: sbOpacity()
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// Calculate width/height and position based on the content size and position of
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// the Flickable
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width: vertical ? scrollbarWidth : flickableItem.visibleArea.widthRatio * parent.width
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height: vertical ? flickableItem.visibleArea.heightRatio * parent.height : scrollbarWidth
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x: vertical ? parent.width - width : flickableItem.visibleArea.xPosition * parent.width
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y: vertical ? flickableItem.visibleArea.yPosition * parent.height : parent.height - height
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// Animate scrollbar appearing/disappearing
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Behavior on opacity { NumberAnimation { duration: 200 }}
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}
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