Image scrolling

[DBarranca]

Hi,

I've a modal ScriptUI dialog with buttons that zoom in and zoom out using this kind of code:

var s2t= function (s) { return app.stringIDToTypeID(s) }
var zoomIn= function() {
  var d, r;
  d = new ActionDescriptor();
  r = new ActionReference();
  r.putEnumerated(s2t('menuItemClass'), s2t('menuItemType'), s2t('zoomIn'));
  d.putReference(s2t('target'), r);
  executeAction(s2t('select'), d, DialogModes.NO);
  return app.refresh();
};

Now, my problem is that I can't pan the image - the window is modal. Is there a way to implement such a control via script (scroll-left, scroll-right, etc)?

Thanks in advance,

Davide

[DBarranca]

I bump my own topic after 2 years - has anybody found a way to center the image's view on PS CC2014?

Thank you!

Davide Barranca

---

www.davidebarranca.com

www.cs-extensions.com

[Pedro Cortez Marques]

Hi David

I have manage to have results only on windows7 regarding the LEFT<>RIGHT scroll (with some limitations)

I imagine there is also on OSX some kind of key behavior to do the same

Hope it helps.

// tested vbscript below on windows7


// fit on Screen center
app.runMenuItem(app.stringIDToTypeID ("fitOnScreen"));
// after read the % of zoom when is fitOnScreen it assumes this is your 100%, and now you can set the new zoom
setZoomLevel( getZoomLevel(), 152); // for example 112 will be 112% (if related to 100% = fitToScreen)


// how to drag image over scrool
// with some limitations, I have tested successfully to use vbscript on PC Windows7
var vbsTemp = File(Folder.temp +"/vbsTemp.vbs"); // creates a bat file at temp folder
vbsTemp.open("w")
vbsTemp.writeln('Dim appRef, WshShell');
vbsTemp.writeln('Set appRef = CreateObject("Photoshop.Application")');
vbsTemp.writeln('appRef.bringToFront');
vbsTemp.writeln('appRef.visible = true');
vbsTemp.writeln('Set WshShell = WScript.CreateObject("WScript.Shell")');
vbsTemp.writeln('WScript.Sleep 400');
// choose one or more of this ( For SHIFT prefix with +  ||  For CTRL  prefix with ^  ||  For ALT   prefix with % )
//~ vbsTemp.writeln('WshShell.SendKeys("{HOME}")'); // inside image TOP CENTER
//~ vbsTemp.writeln('WshShell.SendKeys("{END}")'); // inside image BOTTOM CENTER
//~ vbsTemp.writeln('WshShell.SendKeys("{PGDN}")'); // BOTTOM direction [until out-bound limit] (major steps) the total of keys needed depends on the amount of hidden image (zoom related)
//~ vbsTemp.writeln('WshShell.SendKeys("{PGUP}")'); // TOP direction [until out-bound limit] (major steps) total of keys needed depends on the amount of hidden image (zoom related)
//~ vbsTemp.writeln('WshShell.SendKeys("^{PGUP}")'); // activates the scrool drag right (major steps) =  CTRL+{PGUP}
//~ vbsTemp.writeln('WshShell.SendKeys("^{PGDN}")'); // activates the scrool drag left  (major steps) = CTRL+{PGDN}
vbsTemp.writeln('WshShell.SendKeys("^+{PGUP 32}")'); // minor steps scrool drag right {PGUP [number of minor steps to drag]} =  CTRL+Shift+{PGUP}  x N times
//~ vbsTemp.writeln('WshShell.SendKeys("^+{PGDN 32}")'); // minor steps scrool drag left {PGDN [number of minor steps to drag]} =  CTRL+Shift+{PGDN}  x N times


vbsTemp.close();
vbsTemp.execute();




function getZoomLevel(){
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
var desc = executeActionGet(ref);
return Number(desc.getDouble(stringIDToTypeID('zoom'))*100).toFixed(1);
};
function setZoomLevel( getZoomLevelValue , percent ) {
    zoom = getZoomLevelValue * (percent/100);
    if(zoom < 1 ) zoom =1;
   var ref = new ActionReference();
   ref.putEnumerated( charIDToTypeID("capp"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
   var getScrRes = executeActionGet(ref).getObjectValue(stringIDToTypeID('unitsPrefs')).getUnitDoubleValue(stringIDToTypeID('newDocPresetScreenResolution'))/72;
   var docRes = activeDocument.resolution;
   activeDocument.resizeImage( undefined, undefined, getScrRes/(zoom/100), ResampleMethod.NONE );
   var desc = new ActionDescriptor();
   ref = null;
   ref = new ActionReference();
   ref.putEnumerated( charIDToTypeID( "Mn  " ), charIDToTypeID( "MnIt" ), charIDToTypeID( 'PrnS' ) );
   desc.putReference( charIDToTypeID( "null" ), ref );
   executeAction( charIDToTypeID( "slct" ), desc, DialogModes.NO );
   activeDocument.resizeImage( undefined, undefined, docRes, ResampleMethod.NONE );
}