Rectangular Marquee with fixed ratio

Question

Hello.
I'am trying to make selection transform similar to "Rectangular Marquee Tool" with fixed ratio. I've got ratio changed while pulling a side.
Its OK with "Shift" button pressed before pull occured. I'am looking for solution that alows me to transform selection without "Shift" pressed.
Any solutions?

Answer 1

digcode wrote:
Hello.
I'am trying to make selection transform similar to "Rectangular Marquee Tool" with fixed ratio. I've got ratio changed while pulling a side.
Its OK with "Shift" button pressed before pull occured. I'am looking for solution that alows me to transform selection without "Shift" pressed.
Any solutions?
Shift for the transform tool like transform selection constrains the selection to the current aspect ratio. Shift for the marquee tool constrains the selection to square.  In any case shift has nothing to do with script code unless the code is executing an interactive Action or performing and interactive step like a scriptlisener step.
Just do the math. You know the AR and you can retrieve the documents width and height.  You may also want to rotate the AR or image so the images orientation works better with the AR you wanting to select.  
My crafting actions package contains 12 scripts I created for use within Actions two are Plug-ins based on Adobe's FitImage Plug-in script. One is named AspectRatioSelection. You may want to look at it.  It uses a function I created from scriptlistner code that can make selection or paths that are rectangle or oval in shape the size of the document or with a 25% border centered or from the top right of a document. The Script rotate the AR to match the document orientation. I did make one the made that rotation an option but never made that version public. It very easy to add that option if you need to.
Interavtive scripts are not that common and when come down to it there is not a DOM object for Transform.  In my Photo Collage Toolkit package in its Interactive Populate Collage script after the script places in an image, it re-size and positions the image then the script put the user into and interactive transform using scriptlistener code.  The modifier keys will work the way Adobe programmed the feature to work. 
//==================== Interactive Transform ==============
function InteractiveTransform() {
  // Menu Edit>Free transform
    var desc1 = new ActionDescriptor();
    var ref1 = new ActionReference();
    ref1.putEnumerated(cTID('Mn  '), cTID('MnIt'), cTID('FrTr'));
    desc1.putReference(cTID('null'), ref1);
    executeAction(cTID('slct'), desc1, DialogModes.NO);
The only way I can think it may be able to be done the way you want it to would be for you to code some interactive dialog window. Where you put up a dialog box over the selection and resize it when the user uses their mouse to drag a side or corner.  I have never code a interactive dialog GUI and therefore don't know if that would even be possible.  I have come across some dynamic dialogs but never one positioned to a selection.  You could put out a dialog or prompt to information as to how to resize the selection or accept the current then resize the selection and refresh the display and loop till the selection is accepted or canceled in this  dialog. Perhaps using arrow keys in the dialog where the script handles the resize stepping a does it from the center to maintain position and only allow size changing without rotation.
Transform also allow rotation and distortion so be careful how you code it. Code in a cancel perhaps a reset also.
My free Photoshop Packages can be downloaded from this link  http://www.mouseprints.net/Photoshop.html