Re: Image resize.

Tue, 19 Oct 2004 13:59:15 -0700

Here is another solution. Try putting the handler below into a stack or card script (I put it in my mainstack's script). If the option (or alt for x86 systems) is held down after resizing, the image will automatically shrink to fit the given box and to maintain the original aspect ratio of the image.

on resizeControl
if the first word of the abbreviated name of the target is "image" and the optionKey is down then
put the height of the target into curhigh
put the width of the target into curwide
put the formattedHeight of the target into orighigh
put the formattedWidth of the target into origwide

    put origwide/orighigh into aspect1
    put orighigh/origwide into aspect2

    multiply aspect1 by curhigh
    multiply aspect2 by curwide

    if aspect1 > curwide then
      set the height of the target to aspect2
    else if aspect2 > curhigh then
      set the width of the target to aspect1
    end if
  end if
end resizeControl

On Oct 19, 2004, at 5:36 PM, Derek Bump wrote:

very nice, Derek, very nice!

Could you eventually consider to give a TINY hint on how to use it?

:) Yes, sorry about that. I was composing message when I got a call (I work in Security with the local Police Department) so I just sent it and I'm back now.

That script is for constraining the aspect ratio for an image when a new width or height is choosen. It would consit of 2 fields, width and height, and 2 option menus both containing "Pixels" and "Percent". Also, there's a checkbox to turn on/off the aspect calculator.

The original width and height are always constant and held in the variables oWidth and oHeight. When a new width or height is entered in the fields, the appropriate "doUpdate" handler is called and puts the calculated width and height into the variables and then into the opposite field.

The script is not completely exact though. Sometimes the numbers are a little off when trying to get a calculation down to 1 or 2 pixels, but it works pretty well.


Derek Bump
Dreamscape Software
____________________________________________
Compress Images Easily with JPEGCompress
http://www.dreamscapesoftware.com
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