Position of mouse on image

[neda]

Hi,
I have two images:
1- normal image
2- same image with the ability to zoom

I have 4 draggable shapes (A,B,C,D) on second image (image with the ability to zoom).

I want to display position of mouse on normal image (with draw a shape (canvas3)) when the position of A/B/C/D shapes changed on the zoomed image.
I used the following code but it does not show correct position.


property int xwheel: 0
property int ywheel: 0
property alias source :image.source
id:mywin
property int highestZ: 0
property real defaultSize: mywin.width
property real surfaceViewportRatio: 1.5

ScrollView {
anchors.fill: parent
flickableItem.interactive: true
frameVisible: true
highlightOnFocus: true
style: ScrollViewStyle {
transientScrollBars: true
.........
}

Flickable {
id: flick
anchors.fill: parent
contentWidth: parent.width
contentHeight: parent.height

Rectangle {
id: photoFrame
width: parent.width
height: parent.height
scale:defaultSize / parent.width
Behavior on scale { NumberAnimation { duration: 200 } }
Behavior on x { NumberAnimation { duration: 200 } }
Behavior on y { NumberAnimation { duration: 200 } }
smooth: true
antialiasing: true

Image {
id:image
anchors.fill: parent
fillMode: Image.PreserveAspectFit
smooth: true
}
PinchArea {
anchors.fill: parent
pinch.target: photoFrame
pinch.minimumRotation: -360
pinch.maximumRotation: 360
pinch.minimumScale: 0.1
pinch.maximumScale: 10
pinch.dragAxis: Pinch.XAndYAxis
property real zRestore: 0
onSmartZoom: {
if (pinch.scale > 0) {
photoFrame.rotation = 0;
photoFrame.scale = Math.min(mywin.width, mywin.height) / Math.max(image.sourceSize.width, image.sourceSize.height) * 0.85
photoFrame.x = flick.contentX + (flick.width - photoFrame.width) / 2
photoFrame.y = flick.contentY + (flick.height - photoFrame.height) / 2
zRestore = photoFrame.z
photoFrame.z = ++mywin.highestZ;
} else {
photoFrame.rotation = pinch.previousAngle
photoFrame.scale = pinch.previousScale
photoFrame.x = pinch.previousCenter.x - photoFrame.width / 2
photoFrame.y = pinch.previousCenter.y - photoFrame.height / 2
photoFrame.z = zRestore
--mywin.highestZ
}
}

MouseArea {
id: dragArea
hoverEnabled: true
anchors.fill: parent
drag.target: photoFrame
scrollGestureEnabled: false
onPressed: {
photoFrame.z = ++mywin.highestZ;
}

onWheel: {

if (wheel.modifiers & Qt.ControlModifier) {
photoFrame.rotation += wheel.angleDelta.y / 120 * 5;
if (Math.abs(photoFrame.rotation) < 4)
photoFrame.rotation = 0;
} else {
photoFrame.rotation += wheel.angleDelta.x / 120;
if (Math.abs(photoFrame.rotation) < 0.6)
photoFrame.rotation = 0;
var scaleBefore = photoFrame.scale;
photoFrame.scale += photoFrame.scale * wheel.angleDelta.y / 120 / 10;
}
}
}
}

Point {
id: pointA
x: image.width/4
y: image.height/4
onDragged: {
xwheel=pointA.x;
ywheel=pointA.y;
canvas3.requestPaint()
}
}
Point {
id: pointB
.....
}

Point {
id: pointD
.....
}

Point {
id: pointC
.....
}

}
}
}
Image {
id:mainimage
width: parent.width/4
height: parent.height/4
smooth: true
source: image.source

Canvas {
id: canvas3
width: parent.width
height: parent.height
onPaint: {
var context = getContext("2d");

// Make canvas all white
......
context.beginPath();
//Style
.......
context.moveTo(xwheel/4, ywheel/4);
context.arc(xwheel/4, ywheel/4, 5, 0, 2*Math.PI, true)
context.fill();
context.stroke();
}
}

}