//Change time of Comp and PreComps
//Byron Nash, edited and improved by Paul Tuersley
//Nov. 2004
//Set all precomps and comps in to main comp's duration 
//Select a comp or have it as the active item 
//Script will change the length and out point of all comps and stills to the length of the current comp 

{//open 
app.beginUndoGroup("Retime all precomps"); 

var dur = Number(7);//setup duration variable 

function onTimeCodeClick(){//enables timecode fields 
timeCodeRb.value = true; 
frRb.value = false; 
frEt.enabled = false; 
tcHEt.enabled = true; 
tcMEt.enabled = true; 
tcSEt.enabled = true; 
tcFEt.enabled = true; 
writeLn("You Clicked TC, it is now: " + tcHEt.text+tcMEt.text+tcSEt.text+tcFEt.text); 
} 

function onFrameClick(){//enables frames field 
timeCodeRb.value = false; 
frRb.value = true; 
frEt.enabled = true; 
tcHEt.enabled = false; 
tcMEt.enabled = false; 
tcSEt.enabled = false; 
tcFEt.enabled = false; 
writeLn("You Clicked Frames, it is now: " + frEt.text); 
} 

function onFrameChange(){//when a user changes the number 
var framedur = Number(frEt.text/30);//take the frames value 
writeLn("frames changed to: " + framedur); 
return framedur; 
} 

function onTimeCodeChange(){//when a user changes the number 
var h = Number(tcHEt.text * 3600);//multiply hours 
var m = Number(tcMEt.text * 60);//multiply minutes 
var s = Number(tcSEt.text);//multiply seconds 
var f = Number(tcFEt.text/30);//divide frames 
var tcdur = Number(h+m+s+f);//add'em up 
writeLn("Timecode changed to: " + tcdur); 
return tcdur; 
} 

function onOKClick(){//set variables 
//set comp length for still images 
if(frRb.value == true){ 
dur = onFrameChange(); 
//alert('using frEt ' + dur); //debugging 
}else{ 
dur = onTimeCodeChange(); 
//alert('using TC ' + dur ); //debugging 
} 
writeLn('New Duration is: ' + dur); 
} 

// changeCompDuration function 
// change comp duration 
// check each layer in comp 
// if layer is a precomp, recursive function, then change its outpoint 
// else if still footage, change its outpoint 

function changeCompDuration(myComp){ 
//alert('entering changeComp function - setting ' + myComp.name + " duration"); 
myComp.duration = compDur; 
var lcoll = myComp.layers;//collection of layer objects in Comp 

for (var i=1; i<=lcoll.length; ++i){ //loop through each layer in the comp 
	var selItem = lcoll[i];
 
  var skip = false;
  if (selItem.property("intensity") != null){ 
  skip = true; // Layer is a light layer 
  selItem.outPoint = compDur;
  } 
    
  if (selItem.property("zoom") != null){ // Layer is a camera layer }
  skip = true;
  selItem.outPoint = compDur;
  }
  
  if (skip == false){
  var selItem = lcoll[i].source; //find layer source in project 
  //alert("checking " + lcoll[i].name); 
  
  if(selItem instanceof CompItem) {//check for comp 
    changeCompDuration(selItem); 
    lcoll[i].outPoint = compDur;//set layer out point to comp out point 
    } else { 
    //alert("Is it a still? " + lcoll[i].source.duration); //duration will be 0 on still footage 
    //alert("setting still's outpoint"); 
    if (lcoll[i].source.duration == 0) { 
      lcoll[i].outPoint = compDur;//set layer out point to comp out point 
      } 
    } 
}
} 
return 
}//close comp function 

clearOutput(); 

var myComp = app.project.activeItem; 

if(myComp instanceof CompItem) { 

// Create the dialog 
//Setup Button bounds and placement 
// Horizontal Spacing variables 
var left_margin_width = 5; 
var right_margin_width = 5; 
var between_button_width = 5; 

// Width of buttons 
var button_width = 80; 
var button_height = 15; 

//Variables to describe the button size and placement 
var button_left = left_margin_width; 
var button_right = button_left + button_width; 
var button_top = 19; 
var button_bottom = button_top + button_height; 
var palette_width = button_right + right_margin_width; 


var dlg = new Window('dialog', 'Re-Lengthify', [400,400,600,500]); 
//main panel 
dlg.stillPnl = dlg.add('panel', [5,4,195,66], 'New Comp Length'); 

//frames radio and text box 
var frRb = dlg.stillPnl.add('radiobutton',[button_left,button_top,button_right,button_bottom],'Frames'); 
var frEt = dlg.stillPnl.add('edittext', [button_right,button_top-5,button_right+35,button_bottom], '77'); 
button_top = button_top + button_height + between_button_width+2; 
button_bottom = button_top + button_height+2; 

//timecode radio and fields for entering in timecode 
var timeCodeRb = dlg.stillPnl.add('radiobutton',[button_left,button_top,button_right,button_bottom],'Timecode'); 
var timecodeWidth = 23.5; 
var timecodeSpace = 2; 

var tcHEt = dlg.stillPnl.add('edittext', [button_right,button_top-5,button_right+timecodeWidth,button_bottom], '00'); 
tcHEt.justify = "center"; 

button_right = button_right + timecodeWidth + timecodeSpace; 
var tcMEt = dlg.stillPnl.add('edittext', [button_right,button_top-5,button_right+timecodeWidth,button_bottom], '00'); 
tcMEt.justify = "center"; 

button_right = button_right + timecodeWidth + timecodeSpace; 
var tcSEt = dlg.stillPnl.add('edittext', [button_right,button_top-5,button_right+timecodeWidth,button_bottom], '10'); 
tcSEt.justify = "center"; 

button_right = button_right + timecodeWidth + timecodeSpace; 
var tcFEt = dlg.stillPnl.add('edittext', [button_right,button_top-5,button_right+timecodeWidth,button_bottom], '00'); 
tcFEt.justify = "center"; 


//buttons for ok and cancel 
dlg.btnPnl = dlg.add('panel',[91,68,195,95],''); 
var OKBtn = dlg.btnPnl.add('button', [3,3,50,23],'OK', {name:'ok'}); 
var cancelBtn = dlg.btnPnl.add('button', [54,3,101,23],'Cancel', {name:'cancel'}); 


//send clicks to functions for enabling/disabling buttons 
timeCodeRb.onClick = onTimeCodeClick; 
frRb.onClick = onFrameClick; 
frEt.onChange = onFrameChange; 
tcHEt.onChange = onTimeCodeChange; 
tcMEt.onChange = onTimeCodeChange; 
tcSEt.onChange = onTimeCodeChange; 
tcFEt.onChange = onTimeCodeChange; 
OKBtn.onClick = onOKClick; 
//done creating dialog 

if(dlg.show() == 1){//If the dialog is closed with OK, set the dur variable 
if(frRb.value == true){//test to see what button is checked 
dur = onFrameChange(); 
//alert('using frEt ' + dur); //debugging 
}else{ 
dur = onTimeCodeChange(); 
//alert('using TC ' + dur ); //debugging 
} 
var compDur = dur;//set variable from dur value; 
changeCompDuration(myComp); 
}else{ 
writeLn('Canceled'); 
} 
}else{ 
alert ("Please select a comp and run again.\n" + " Thank You.\n" ); 
} 
app.endUndoGroup; 
}//close