/*
 .
 .	LibraryIMG2PNG
 .
 .	by dotmick (www.dotmick.com)
 .
 .	- Export image(s) from a library to PNG file(s)
 .	- Select automaticaly from the library the images with no source (OPTIONAL)
 .	- Generate a report
 .
 */


init();

function init()
{
	fl.outputPanel.clear();
	
	var choice = confirm("Do you want to select automaticaly from the library the images with no source?\n\n[ OK ] for YES\n[ CANCEL ] for NO (use the current selected item(s) in library)");
	
	var selectedImgItems;
	
	if( choice ) 	selectedImgItems = getBrokenItemsFromLib();
	else 			selectedImgItems = getSelectedItemsFromLib("bitmap");
	
	if( selectedImgItems.length == 0 ) return;
	
	var outputFolder = chooseOutputFolder();

	if( outputFolder == undefined )
	{
		fl.trace("No output folder specified");
		return;
	}
	
	exportImg( selectedImgItems, outputFolder );
}

function getBrokenItemsFromLib()
{
	fl.getDocumentDOM().library.selectAll();
	var imgs = fl.getDocumentDOM().library.getSelectedItems();
	fl.getDocumentDOM().library.selectNone();
	
	var s = new Array();

	if(imgs.length == 0)
	{
		alert("Your library is empty -_-");
	}
	else
	{
		fl.trace("-----------------------------------------------------------------------------");
		fl.trace("Source?\t\tName");
		fl.trace("-----------------------------------------------------------------------------");
		for(var i = 0; i < imgs.length; i++)
		{
			if(imgs[i].itemType == "bitmap")
			{
				if(!imgs[i].sourceFileExists)
				{
					fl.trace("N\t\t\t" + imgs[i].name);
					s.push(imgs[i]);
					fl.getDocumentDOM().library.selectItem(imgs[i].name, false);
				}
				else
				{
					fl.trace("Y\t\t\t" + imgs[i].name);
				}
			}
		}
	}
	
	return s;
}

function getSelectedItemsFromLib(_type)
{
	var imgs = fl.getDocumentDOM().library.getSelectedItems();
	var s = new Array();

	if(imgs.length == 0)
	{
		alert("No item selected in the library.\nPlease select one or more ;)");
	}
	else
	{
		for(var i = 0; i < imgs.length; i++)
		{
			if(imgs[i].itemType == _type)
			{
				s.push(imgs[i]);
			}
		}
	}

	return s;
}

function chooseOutputFolder()
{
	var folder = decodeURI(fl.browseForFolderURL("Please choose an output folder"));

	if( folder == "null" ) return;

	return folder + "/";
}

function exportImg(_imgs, _outputFolder)
{
	var lib = fl.getDocumentDOM().library;
	
	for(var i = 0; i < _imgs.length; i++)
	{
		lib.selectItem(_imgs[i], true);
		_imgs[i].exportToFile(_outputFolder + _imgs[i].name + ".png");
	}
	
	alert(_imgs.length + " file(s) successfully exported!\n\n[ " + _outputFolder.substring(7) + " ]");
}