Rank: Member
Groups: Guest
Joined: 9/19/2007(UTC)
Posts: 4
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Hi I want to add undo to my application but I'm running up against a small problem. You've already kindly helped with the zooming in this post As you can see from my previous post when I load the image to the bitmapviewer I set the zoom at the same time in the code behind. However when I add an undo button using the following code it doesn't respect the zoom. aspx snippet: Code: function undo(){
bitmapViewer1.invokeRemoteMethod("undo");
}
vb.net snippet Code: <Aurigma.GraphicsMill.WebControls.RemoteScriptingMethod()> _
Public Sub undo()
If Not BitmapViewer1.Bitmap.IsEmpty Then
If BitmapViewer1.Bitmap.CanUndo Then
BitmapViewer1.Bitmap.Undo()
End If
End If
End Sub
What do I need to do to get the zoom set on load and on undo? Edited by user Tuesday, December 25, 2007 3:36:35 PM(UTC)
| Reason: Not specified
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Rank: Member
Groups: Guest
Joined: 9/19/2007(UTC)
Posts: 4
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To clarfiy, what I am trying to acheive is that the image is always displayed "best fit" and the scroll bars never need to show regardless of how large or what shape the image is.
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Rank: Advanced Member
Groups: Guest
Joined: 6/5/2007(UTC)
Posts: 57
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Hello, Vestan As I understand your problem, you should just replace your undo() function with this code: Code: function undo(){
bitmapViewer1.invokeRemoteMethod("undo");
updateRectangle=true;
}
and replace your bitmapViewer1_StatusChanged() function with this code: Code: function bitmapViewer1_StatusChanged(){
var s = bitmapViewer1.getStatus();
if (updateRectangle && s != "Busy"){
updateRectangle = false;
bitmapViewer1.setZoom(bitmapViewer1.offsetWidth/bitmapViewer1.bitmap.getWidth());
rectangleRubberband1.setRectangle(new Rectangle(0, 0, bitmapViewer1.bitmap.getWidth(), bitmapViewer1.bitmap.getHeight()))
}
}
Also, during zoom calculation, you should take into account Height of the BitmapViewer. |
Sincerely yours, Sergey Peshekhonov. Aurigma Technical Support Team. |
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