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Allow changing the current month using mouse wheel

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REVIEW: 120003
This commit is contained in:
Kai Uwe Broulik 2014-09-02 20:14:26 +02:00
parent db601cf291
commit 8678630a82
1 changed files with 25 additions and 0 deletions
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25
src/declarativeimports/calendar/qml/MonthView.qml
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@ -107,6 +107,8 @@ Item {
}
MouseArea {
id: monthMouse
property int previousPixelDelta
width: monthHeading.paintedWidth
anchors {
left: parent.left
@ -119,6 +121,29 @@ Item {
}
menuLoader.item.open(0, height);
}
onExited: previousPixelDelta = 0
onWheel: {
var delta = wheel.angleDelta.y || wheel.angleDelta.x
var pixelDelta = wheel.pixelDelta.y || wheel.pixelDelta.x
// For high-precision touchpad scrolling, we get a wheel event for basically every slightest
// finger movement. To prevent the view from suddenly ending up in the next century, we
// cumulate all the pixel deltas until they're larger than the label and then only change
// the month. Standard mouse wheel scrolling is unaffected since it's fine.
if (pixelDelta) {
if (Math.abs(previousPixelDelta) < monthMouse.height) {
previousPixelDelta += pixelDelta
return
}
}
if (delta >= 15) {
calendarBackend.previousMonth()
} else if (delta <= -15) {
calendarBackend.nextMonth()
}
previousPixelDelta = 0
}
}
}