[SOLVED] CopyRect issue?

[JasonLugg]

Hi All and thx in advance.

I am coding a little sprite editor app but am having problems with CopyRect.

When I do the following:
SprSheetImg.Canvas.CopyRect(Rect(504,441,576,504),ClipBoardPanel.Canvas, rect(4,4,76,67) );
It works correctly.

However, when the SrcRect & DestRect are calculated as below:
SprSheetImg.Canvas.CopyRect(RectToPaste,ClipBoardPanel.Canvas, RectToCopy);

It does not 'copy' correctly, even though in debugging both tRects hold the correct values?

Any ideas why this may be?

[taazz]

that is not possible. If you take in to account that

Code: Pascal  [Select][+][-]

1.  Rect(504,441,576,504)

is a call to a function that returns a rect that makes it a calculated rect as well. There is no way that the two calls showcased here are equivalent if they do not create the same results.

[JasonLugg]

I get what you are saying and agree about rect(t,l,r,b) calling a function. However when I hard code the numbers in, it works however,when the rects are calculated, i.e CopyRect & PasteRect are filled elsewhere (the values in them are correct as I have debugged them and stepped thru to check the vals) it does  not work?

Code: Pascal  [Select][+][-]

1.    
2.  if PopUpPaste.Enabled then
3.      begin
4.       //Calculate the rectangle for the paste to space
5.        RectToPaste:=CalcCurrentSprRect();
6.  
7.       //For debugging purposes      Edit6.Text:=inttostr(RectToPaste.Left)+','+inttostr(RectToPaste.Top)+','+inttostr(RectToPaste.Right)+','+inttostr(RectToPaste.Bottom);
8.        //This WORKS!
9.        //SprSheetImg.Canvas.CopyRect(Rect(504,441,576,504),ClipBoardPanel.Canvas, rect(4,4,76,67) );
10.        //THIS DOES NOT?
11.        SprSheetImg.Canvas.CopyRect(RectToPaste, ClipBoardPanel.Canvas, rect(4,4,76,67) );
12.        //Explode the pasted image
13.        ActSizeExploded();
14.        ActSizeToSpriteSheet(iSpriteNumber);
15.        SprSheetImg.Refresh;
16.      end;                

[Blaazen]

I get what you are saying and agree about rect(t,l,r,b) calling a function.

Correct order is Left, Top, Right, Bottom. I agree with taazz. It seems to some overlook or something dumb.

[JasonLugg]

As mostly is the case...it was my error! Thanks for you help!