indesign-script - Mehrspaltige Textrahmen an Inhalt anpassen

// © CuppaScripts 2009
//version 1.0.1: Neigungs- und  Drehwinkel werden ggf. auf 0 gesetzt und nach dem Anpassen wieder auf den ursprünglichen Wert
// DESCRIPTION: Passt mehrspaltige Textrahmen in der Höhe an, dass möglichst wenig Leerraum in der letzten Zeile ist. Läuft nicht bei verketteten Textrahmen.

if (app.selection.length > 0) { 
	main(); 
} 
 
function main() { 
	var myOldXUnits = app.documents.item(0).viewPreferences.horizontalMeasurementUnits; 
	var myOldYUnits = app.documents.item(0).viewPreferences.verticalMeasurementUnits; 
	app.documents.item(0).viewPreferences.horizontalMeasurementUnits = MeasurementUnits.millimeters; 
	app.documents.item(0).viewPreferences.verticalMeasurementUnits = MeasurementUnits.millimeters; 
	var myRefPoint = app.layoutWindows[0].transformReferencePoint;
	app.layoutWindows[0].transformReferencePoint  = AnchorPoint.TOP_LEFT_ANCHOR;
	
	for (var s = 0; s < app.selection.length; s++) {
		var aSel = app.selection[s]; 
		if (aSel.constructor.name == "TextFrame") { 
			if(aSel.nextTextFrame == NothingEnum.NOTHING || aSel.nextTextFrame == null){
				if (aSel.textColumns.length > 1) { 
					var theShearAngle = aSel.shearAngle;
					var theRotAngle = aSel.rotationAngle;
					if (theShearAngle != 0 || theRotAngle != 0) {
						aSel.shearAngle = 0;
						aSel.rotationAngle = 0;
					}
					var t = aSel.geometricBounds[0];
					var l = aSel.geometricBounds[1];
					var b = aSel.geometricBounds[2];
					var r = aSel.geometricBounds[3];
					while (aSel.overflows && b < 5000) {
						aSel.geometricBounds = [t,l,b+10,r];
						b = aSel.geometricBounds[2];
					}
			
					var bDone = false; 
					var bBefore = aSel.geometricBounds[2]; 
					while (!bDone) { 
						var cols = getLastLines(aSel); 
						var diff = (cols.longest - cols.shortest); 
						if (diff < 0.5) {  
							diff = lineHeight(aSel);  
							bDone = shrink(aSel, diff); 
							if (Math.abs(aSel.geometricBounds[2] - bBefore) < 0.02) { bDone = true; } 
							bBefore = aSel.geometricBounds[2]; 
						} else { 
							bDone = shrink( aSel, diff ); 
							if (aSel.geometricBounds[2] == bBefore) { bDone = true; } 
							bBefore = aSel.geometricBounds[2]; 
						}  // diff < 0.5
					} 	 // while
					if (theShearAngle != 0 || theRotAngle != 0) {
						aSel.shearAngle = theShearAngle;
						aSel.rotationAngle = theRotAngle;
					}
				} else {
					aSel.fit(FitOptions.FRAME_TO_CONTENT);
				}	// columns
			}	// unlinked
		}		// tFrame
	}			// for

app.layoutWindows[0].transformReferencePoint  = myRefPoint;
	app.documents.item(0).viewPreferences.horizontalMeasurementUnits = myOldXUnits; 
	app.documents.item(0).viewPreferences.verticalMeasurementUnits = myOldYUnits; 
} 
 
function shrink ( aSel, diff) { 
	var bDone = false; 
	var t = aSel.geometricBounds[0]; 
	var l = aSel.geometricBounds[1]; 
	var b = aSel.geometricBounds[2]; 
	var r = aSel.geometricBounds[3]; 
	aSel.geometricBounds = [t, l, b-diff, r]; 
	var n = 0; 
	while (aSel.overflows && n < 10) { 
		diff = diff/2 
		aSel.geometricBounds = [t, l, b-diff, r]; 
		n++; 
	} 
	if (n == 10) { 
		bDone = true; 
		aSel.geometricBounds = [t, l, b, r];; 
	} 
	return bDone 
} 
 
function lineHeight(aSel) { 
	try { 
		var h = aSel.textColumns[0].lines[-1].baseline - aSel.textColumns[0].lines[-2].baseline; 
	} catch (e) { 
		var h = aSel.geometricBounds[2] - aSel.geometricBounds[0] / 2; 
	} 
	for (var n = 1; n < aSel.textColumns.length; n++) { 
		try{ 
			h = Math.min( h, aSel.textColumns[n].lines[-1].baseline - aSel.textColumns[n].lines[-2].baseline); 
		} catch(e) {} 
	} 
	return h; 
} 
 
function getLastLines(aSel) { 
	var cols = new Object (); 
	cols.shortest = cols.longest = aSel.textColumns[0].lines[-1].baseline; 
	for (var n = 1; n < aSel.textColumns.length; n++) { 
		cols.shortest = Math.min( cols.shortest, aSel.textColumns[n].lines[-1].baseline); 
		cols.longest = Math.max( cols.longest, aSel.textColumns[n].lines[-1].baseline); 
	} 
	return cols; 
}