//--------------------------------------------------------
//	Script Name: Camera HUD tool
//	Last Updated: September 25 2010
//	Authors: Bahou reda
//	e-mail: bahoumohamed_reda@hotmail.com
//	
//	create HUD control overscan and pan and image plane opacity
//	switch between proxy and full resolution image plane
//	useful for camera projection	
//	Usage : open in script editor and drag to shelf.
//	
//--------------------------------------------------------

//----- query and create HUD -----

if(`headsUpDisplay -q -ex "HUDoverscan"` != 1)
	{
global proc OverscanCam( string $HUD )
{
	// Ensure undo enabled since we will just trigger this on the button
	// release event.
	//
	undoInfo -swf false;
	$camera = `modelEditor -q -camera modelPanel4`;
	{
		{
			string $overscan = $camera + ".overscan";
			float $value = `hudSlider -q -v $HUD`;
			setAttr $overscan $value;
		}
	}
	undoInfo -swf true;
}

hudSlider -section 5
		  -block 5
		  -visible 1
		  -label "overscan :"
		  -value 1.3
		  -type "float"
		  -minValue 0.05
		  -maxValue 5
		  -labelWidth 60
		  -valueWidth 50
		  -sliderLength 100
		  -sliderIncrement 0.005
		  -dragCommand "OverscanCam( \"HUDoverscan\" )"
		  HUDoverscan;

global proc filmOffsetH( string $HUD )
{
	// Ensure undo enabled since we will just trigger this on the button
	// release event.
	//
	undoInfo -swf false;
	$camera = `modelEditor -q -camera modelPanel4`;
	{
		float $value = `hudSlider -q -v $HUD`;
		setAttr ($camera+".horizontalFilmOffset") `hudSlider -q -v $HUD`;
	
	}
	undoInfo -swf true;
}

hudSlider -section 5
		  -block 7
		  -visible 1
		  -label "OffsetH :"
		  -value 0
		  -type "float"
		  -minValue -0.6
		  -maxValue 0.6
		  -labelWidth 60
		  -valueWidth 50
		  -sliderLength 100
		  -sliderIncrement 0.01
		  -dragCommand "filmOffsetH( \"HUDfilmOffH\" )"
		  HUDfilmOffH;


global proc filmOffsetV( string $HUD )
{
	// Ensure undo enabled since we will just trigger this on the button
	// release event.
	//
	undoInfo -swf false;
	$camera = `modelEditor -q -camera modelPanel4`;
	{
		float $value = `hudSlider -q -v $HUD`;
		setAttr ($camera+".verticalFilmOffset") `hudSlider -q -v $HUD`;
	
	}
	undoInfo -swf true;
}

hudSlider -section 5
		  -block 6
		  -visible 1
		  -label "OffsetV :"
		  -value 0
		  -type "float"
		  -minValue -0.6
		  -maxValue 0.6
		  -labelWidth 60
		  -valueWidth 50
		  -sliderLength 100
		  -sliderIncrement 0.01
		  -dragCommand "filmOffsetV( \"HUDfilmOffV\" )"
		  HUDfilmOffV;

global proc changeCamOffset( string $HUD )
{
	undoInfo -swf false;
	$camera = `modelEditor -q -camera modelPanel4`;
{
setAttr ($camera+".horizontalFilmOffset") 0;
setAttr ($camera+".verticalFilmOffset") 0;
}
	undoInfo -swf true;
}

hudButton -s 5
                  -b 3
		  -vis 1
		  -l "reset"
		  -bw 40
		  -bsh "roundRectangle"
		  -rc "changeCamOffset( \"HUDchangOffButton\" )"
		  HUDchangOffButton;

global proc AlphaGain( string $HUD )
{
	// Ensure undo enabled since we will just trigger this on the button
	// release event.
	//
	undoInfo -swf false;
	{
		float $value = `hudSlider -q -v $HUD`;		
		$camera = `modelEditor -q -camera modelPanel4`;
		string $IP[] = `listConnections -d off -s on ($camera+".imagePlane[0]")`;
		setAttr($IP[0]+".alphaGain") `hudSlider -q -v $HUD`;
	
	}
	undoInfo -swf true;
}

hudSlider -section 5
		  -block 4
		  -visible 1
		  -label "alpha :"
		  -value 1
		  -type "float"
		  -minValue 0
		  -maxValue 1
		  -labelWidth 60
		  -valueWidth 50
		  -sliderLength 100
		  -sliderIncrement 0.01
		  -dragCommand "AlphaGain( \"HUDalpha\" )"
		  HUDalpha;


global proc imgSwitch( string $HUD )
{
$camera = `modelEditor -q -camera modelPanel4`;
string $st[] = `listConnections -d off -s on ($camera+".imagePlane[0]")`;
headsUpDisplay -rem HUDreturnState;
if ($st[0] == "imagePlanePROXY"){
connectAttr -f imagePlaneFULL.message ($camera+".imagePlane[0]");
headsUpDisplay 	
		-section      	 5
		-block      		  2
		-blockAlignment      "center"
		-dataFontSize   	 "large"
              -dataWidth      	  50
		-label     		   "FULL"
		-lfs			large
		-command        	  ""
               HUDreturnState;
}
else{
   connectAttr -f imagePlanePROXY.message ($camera+".imagePlane[0]");
headsUpDisplay 	
		-section      	 5
		-block      		  2
		-blockAlignment      "center"
		-dataFontSize   	 "large"
              -dataWidth      	  50
		-label     		   "PROXY"
		-lfs			large
		-command        	  ""
               HUDreturnState;
}
}
hudButton -s 5
                -b 1
		  -vis 1
		  -l "switch"
		  -bw 50
		  -bsh "roundRectangle"
		  -rc "imgSwitch( \"HUDchangOffButton\" )"
	HUDimgSwitch;

	}
else
	{
headsUpDisplay -rem HUDoverscan;
headsUpDisplay -rem HUDfilmOffH;
headsUpDisplay -rem HUDfilmOffV;
headsUpDisplay -rem HUDchangOffButton;
headsUpDisplay -rem HUDalpha;
headsUpDisplay -rem HUDimgSwitch;
headsUpDisplay -rem HUDreturnState;
	}