960gs ExtendScript for Adobe Photoshop CS5

960gs.jsx

/*
 * 960gs ExtendScript for Adobe Photoshop CS5
 * Copyright (c) 2010 Can Berk Güder
 */

#target photoshop

var doc;
var w = new Window(
"dialog {\
	text: '960gs',\
	alignChildren: 'fill',\
	vertical: Panel {\
		text: 'Vertical Guides',\
		alignChildren: 'right',\
		colWidth: Group {\
			st: StaticText { text: 'Column width:' },\
			et: EditText { text: '60', characters: 5 }\
		},\
		numColumns: Group {\
			st: StaticText { text: 'Number of columns:' },\
			et: EditText { text: '12', characters: 5 }\
		},\
		gutterWidth: Group {\
			st: StaticText { text: 'Gutter width:' },\
			et: EditText { text: '20', characters: 5 }\
		}\
	},\
	horizontal: Panel {\
		text: 'Horizontal Guides',\
		alignChildren: 'right',\
		rowHeight: Group {\
			st: StaticText { text: 'Row height:' },\
			et: EditText { text: '20', characters: 5 }\
		}\
	},\
	opts: Panel {\
		text: 'Options',\
		alignChildren: 'left',\
		addVertical: Checkbox { text: 'Add vertical guides', value: true },\
		addHorizontal: Checkbox { text: 'Add horizontal guides' },\
		centerHorizontal: Checkbox { text: 'Center horizontally', value: true }\
	},\
	buttons: Group {\
		alignment: 'center',\
		okBtn: Button { text: 'OK', properties: { name: 'ok' }},\
		cancelBtn: Button { text: 'Cancel', properties: { name: 'cancel' }}\
	}\
}");

w.buttons.okBtn.onClick = function() {
	if(w.opts.addVertical.value) {
		var colWidth = Number(w.vertical.colWidth.et.text);
		var numColumns = Number(w.vertical.numColumns.et.text);

		if(colWidth > 0 && numColumns > 0) {
			var gutterWidth = Number(w.vertical.gutterWidth.et.text);

			var x = 0;
			if(w.opts.centerHorizontal.value) {
				var docWidth = doc.width.as('px');
				var gridWidth = (numColumns * colWidth) + ((numColumns-1) * gutterWidth);
				x = (docWidth - gridWidth) / 2;
			}

			if(gutterWidth > 0) {
				for(var i = 0; i < numColumns; i++) {
					doc.guides.add(Direction.VERTICAL, UnitValue(x, 'px'));
					x += colWidth;
					doc.guides.add(Direction.VERTICAL, UnitValue(x, 'px'));
					x += gutterWidth;
				}
			} else {
				for(var i = 0; i <= numColumns; i++) {
					doc.guides.add(Direction.VERTICAL, UnitValue(x, 'px'));
					x += colWidth;
				}
			}
		}
	}

	if(w.opts.addHorizontal.value) {
		var rowHeight = Number(w.horizontal.rowHeight.et.text);

		if(rowHeight > 0) {
			var docHeight = doc.height.as('px');
			var y = rowHeight;

			while(y < docHeight) {
				doc.guides.add(Direction.HORIZONTAL, UnitValue(y, 'px'));
				y += rowHeight;
			}
		}
	}

	w.close();
}

function main() {
	try {
		doc = app.activeDocument;
	} catch(e) {
		alert('No active document', '960gs', true);
		return;
	}

	w.show();
}

main();