// add_Transparency.js

/*
This Acrobat Javascript will add a transparent character to all the pages entered into the dialog box, seperated by commas. 
*/	


//------------ Dialog Box -------------------\\
var JSADMDlg1 =
	{
		result:"cancel",
		DoDialog: function(){return app.execDialog(this);},
		stredt1:"",
		
		GetRadioSel:function(oRslts,aCtrls)
			{
				  for(var strRtn=aCtrls[0];aCtrls.length>0;strRtn=aCtrls.pop())
		 		 	{
		  			  	if(oRslts[strRtn] == true)
		    			return strRtn;
				  	} 
				  return "";
			},
		
	initialize: function(dialog)
		{
			var dlgInit = 
				{
					"edt1": this.stredt1,
				};
			dlgInit[this.strGRP1] = true;
			dialog.load(dlgInit); 
		},

	commit: function(dialog)
		{
			var oRslt = dialog.store();
			this.stredt1 = oRslt["edt1"];
		},

	description:
		{
			name: "JSADM Dialog",
			elements:
			[
				{
					type: "view",
					width: 241,					
					elements:
					[
						{
							type: "static_text",
							item_id: "ttl1",
							name: "Add Transparency",
							font: "dialog",
							bold: true,
						},
						
						{
							type: "cluster",
							name: "Add transparency to pages:",
							width: 200,
							align_children:"align_row",
							elements:
							[
								{
									type: "static_text",
									item_id: "stat",
									name: "Start",
									alignment: "align_left",
									font: "dialog",
								},
								{
									type: "edit_text",
									item_id: "edt1",
									char_width: 30,
								},												
							]
						},
						{
							type: "ok_cancel",
						},
					]
				},
			]
		}
	};

// Default dialog box values
JSADMDlg1.stredt1 = "";


//Write dialog box values to console for debugging
if("ok" == JSADMDlg1.DoDialog())
	{
		console.println("edt1:" + JSADMDlg1.stredt1);
	}
///-----------End of Dialog box---------------\\

//------------ Begin -----------------------\\

var myPageAmount = this.numPages;
var myPageCheck = false;

var myPageList = JSADMDlg1.stredt1;
var myPageListArray = myPageList.split(",");
var myPageListAmount = myPageListArray.length;

for (i = 0; i <= myPageAmount; i += 1)
	{
		for (j = 0; j <= myPageListAmount; j +=1)
			{
				myCurrentPage = i + 1;
				if (myCurrentPage == myPageListArray[j])
					{
						myPageCheck = true;						
					}
			}		
		if (myPageCheck == true)
			{				
				this.addWatermarkFromText({
				cText: "_", 
				nOpacity: 0, // transparent
				nStart: i,
				nEnd: i,
				nFontSize: 9,
				nTextAlign: app.constants.align.left,
				nHorizAlign: app.constants.align.left,
				nVertAlign: app.constants.align.bottom,
				nHorizValue: 75, nVertValue: 20
				});
			
				myPageCheck = false;
			}			
		}