// ===========================================================================
// Copyright 2018 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk license
// agreement provided at the time of installation or download, or which
// otherwise accompanies this software in either electronic or hard copy form.
// ===========================================================================
//
//
//  Creation Date:  2000
//
// Description:	Scales the overall effect of lighting on a brush.
//		This is useful when compensating for bright lights
//	
//<doc>
//<name scaleBrushBrightness>
//
//<synopsis>
//	scaleBrushBrightness (float $scaleFac, int $template)
//
//<returns>
//  None.
//
//<description>
//  Scales the overall effect of lighting on a brush.
//	This is useful when compensating for bright lights
//
//<flags>
//	float 	$scaleFac A factor to scale the brightness by.
//	int 	$template If true then the factor is applied to the template,
//	    or current brush. Otherwise it is applied to selected strokes and brushes.
//
//<examples>
//  scaleBrushBrightness (2.5, true);
//  scaleBrushBrightness (0.5, false);
//
//</doc>

global proc scaleBrushBrightnessParameters( string $sel, float $scaleFac )
{
	$parm = $sel + ".color1R";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".color1G";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".color1B";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".color2R";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".color2G";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".color2B";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );

	string $leafImage = getAttr( $sel + ".leafImage" );
	string $flowerImage = getAttr( $sel + ".leafImage" );
	$parm = $sel + ".specular";
	setAttr $parm ( getAttr( $parm ) * $scaleFac ); 
	$parm = $sel + ".valRand";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".budColorR";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".budColorG";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".budColorB";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".leafColor1R";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".leafColor1G";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".leafColor1B";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".leafColor2R";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".leafColor2G";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".leafColor2B";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".leafValRand";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".petalColor1R";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".petalColor1G";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".petalColor1B";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".petalColor2R";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".petalColor2G";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".petalColor2B";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );
	$parm = $sel + ".flowerValRand";
	setAttr $parm ( getAttr( $parm ) * $scaleFac );

	float $texColorScale = getAttr ($sel + ".texColorScale" );
	if( $texColorScale != 1 )
	{
		float $texFac = (1-$texColorScale) * $scaleFac + $texColorScale;
		$parm = $sel + ".texColor1R";
		setAttr $parm ( getAttr( $parm ) * $texFac );
		$parm = $sel + ".texColor1G";
		setAttr $parm ( getAttr( $parm ) * $texFac );
		$parm = $sel + ".texColor1B";
		setAttr $parm ( getAttr( $parm ) * $texFac );
		$parm = $sel + ".texColor2R";
		setAttr $parm ( getAttr( $parm ) * $texFac );
		$parm = $sel + ".texColor2G";
		setAttr $parm ( getAttr( $parm ) * $texFac );
		$parm = $sel + ".texColor2B";
		setAttr $parm ( getAttr( $parm ) * $texFac );
	}
}

global proc scaleBrushBrightness( float $scaleFac, int $template )
{
	string $sel, $parm;

	if( $scaleFac < 0.01 )
		$scaleFac = 0.01; // avoid loosing ability to scale back up

	if( $template )
	{
		string $defaultBrush = getDefaultBrush();
		scaleBrushBrightnessParameters( $defaultBrush, $scaleFac );
	}
	else
	{
		string $selected[] = getSelectedBrushes();
		if( size( $selected ) <= 0  )
		{
			warning( (uiRes("m_scaleBrushBrightness.kNoBrushesSelected")));
			return;
		}	
		for( $sel in $selected )
		{
			scaleBrushBrightnessParameters( $sel, $scaleFac );
		}
	}
}