PinchArea

[qtnext]

I am trying to use PinchArea (Qt Quick 1.1) : I have the following :

@
import QtQuick 1.1

Rectangle {
width: 300
height: 200
color:"blue"
id :mainMT

PinchArea {
    property int xpoint
    property int ypoint
    property int pinchscale
    property int pinchrotation


    id: pinchy
    enabled: true
    anchors.fill: parent
    pinch.dragAxis: Pinch.XandYAxis
    pinch.minimumScale: 0.01
    pinch.maximumScale: 20
    onPinchUpdated:
    {
        mainMT.x+=-mapToItem(mainMT.parent,pinch.previousCenter.x,pinch.previousCenter.y).x+mapToItem(mainMT.parent,pinch.center.x,pinch.center.y).x;
        mainMT.y+=-mapToItem(mainMT.parent,pinch.previousCenter.x,pinch.previousCenter.y).y+mapToItem(mainMT.parent,pinch.center.x,pinch.center.y).y;
        mainMT.scale-=pinch.previousScale-pinch.scale;
        mainMT.rotation+=pinch.previousAngle-pinch.angle;
     }
}

}

@

It works well except than it's difficult to move the item with two fingers : when you do that, there is rotation that comes with ...
Is there a way to enable single touch to move item instead of double touch to distinct move object, and scale/rotation ?

[mbrasser]

A couple things you could try:

• filtering the data in onPinchUpdated (e.g. only change the rotation when the difference in angle passes a certain threshold)
• use a MouseArea for the single finger dragging (from memory MouseArea and PinchArea should work well together)