/** 
 * @file llpanelface.cpp
 * @brief Panel in the tools floater for editing face textures, colors, etc.
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

// file include
#include "llpanelface.h"
 
// library includes
#include "llcalc.h"
#include "llerror.h"
#include "llfocusmgr.h"
#include "llrect.h"
#include "llstring.h"
#include "llfontgl.h"

// project includes
#include "llagentdata.h"
#include "llbutton.h"
#include "llcheckboxctrl.h"
#include "llcolorswatch.h"
#include "llcombobox.h"
#include "lldrawpoolbump.h"
#include "llface.h"
#include "lllineeditor.h"
#include "llmediaentry.h"
#include "llnotificationsutil.h"
#include "llresmgr.h"
#include "llselectmgr.h"
#include "llspinctrl.h"
#include "lltextbox.h"
#include "lltexturectrl.h"
#include "lltextureentry.h"
#include "lltooldraganddrop.h"
#include "llui.h"
#include "llviewercontrol.h"
#include "llviewermedia.h"
#include "llviewerobject.h"
#include "llviewerstats.h"
#include "llvovolume.h"
#include "lluictrlfactory.h"
#include "llpluginclassmedia.h"
#include "llviewertexturelist.h"

//
// Constant definitions for comboboxes
// Must match the commbobox definitions in panel_tools_texture.xml
//
const S32 MATMEDIA_MATERIAL = 0;	// Material
const S32 MATMEDIA_MEDIA = 1;		// Media
const S32 MATTYPE_DIFFUSE = 0;		// Diffuse material texture
const S32 MATTYPE_NORMAL = 1;		// Normal map
const S32 MATTYPE_SPECULAR = 2;		// Specular map
const S32 ALPHAMODE_NONE = 0;		// No alpha mask applied
const S32 ALPHAMODE_MASK = 2;		// Alpha masking mode
const S32 BUMPY_TEXTURE = 18;		// use supplied normal map
const S32 SHINY_TEXTURE = 4;		// use supplied specular map

//
// Methods
//

BOOL	LLPanelFace::postBuild()
{
	childSetCommitCallback("combobox shininess",&LLPanelFace::onCommitShiny,this);
	childSetCommitCallback("combobox bumpiness",&LLPanelFace::onCommitBump,this);
	childSetCommitCallback("combobox alphamode",&LLPanelFace::onCommitAlphaMode,this);
	childSetCommitCallback("TexScaleU",&LLPanelFace::onCommitTextureInfo, this);
	childSetCommitCallback("TexScaleV",&LLPanelFace::onCommitTextureInfo, this);
	childSetCommitCallback("TexRot",&LLPanelFace::onCommitTextureInfo, this);
	childSetCommitCallback("rptctrl",&LLPanelFace::onCommitRepeatsPerMeter, this);
	childSetCommitCallback("checkbox planar align",&LLPanelFace::onCommitPlanarAlign, this);
	childSetCommitCallback("TexOffsetU",LLPanelFace::onCommitTextureInfo, this);
	childSetCommitCallback("TexOffsetV",LLPanelFace::onCommitTextureInfo, this);
	childSetAction("button align",&LLPanelFace::onClickAutoFix,this);

	LLRect	rect = this->getRect();
	LLTextureCtrl*	mTextureCtrl;
	LLColorSwatchCtrl*	mColorSwatch;

	LLComboBox*		mComboTexGen;
	LLComboBox*		mComboMatMedia;
	LLComboBox*		mComboMatType;

	LLCheckBoxCtrl	*mCheckFullbright;
	
	LLTextBox*		mLabelColorTransp;
	LLSpinCtrl*		mCtrlColorTransp;		// transparency = 1 - alpha

	LLSpinCtrl*     mCtrlGlow;

	setMouseOpaque(FALSE);

	mTextureCtrl = getChild<LLTextureCtrl>("texture control");
	if(mTextureCtrl)
	{
		mTextureCtrl->setDefaultImageAssetID(LLUUID( gSavedSettings.getString( "DefaultObjectTexture" )));
		mTextureCtrl->setCommitCallback( boost::bind(&LLPanelFace::onCommitTexture, this, _2) );
		mTextureCtrl->setOnCancelCallback( boost::bind(&LLPanelFace::onCancelTexture, this, _2) );
		mTextureCtrl->setOnSelectCallback( boost::bind(&LLPanelFace::onSelectTexture, this, _2) );
		mTextureCtrl->setDragCallback(boost::bind(&LLPanelFace::onDragTexture, this, _2));
		mTextureCtrl->setOnTextureSelectedCallback(boost::bind(&LLPanelFace::onTextureSelectionChanged, this, _1));
		mTextureCtrl->setFollowsTop();
		mTextureCtrl->setFollowsLeft();
		mTextureCtrl->setImmediateFilterPermMask(PERM_NONE);
		mTextureCtrl->setDnDFilterPermMask(PERM_COPY | PERM_TRANSFER);
	}

	mColorSwatch = getChild<LLColorSwatchCtrl>("colorswatch");
	if(mColorSwatch)
	{
		mColorSwatch->setCommitCallback(boost::bind(&LLPanelFace::onCommitColor, this, _2));
		mColorSwatch->setOnCancelCallback(boost::bind(&LLPanelFace::onCancelColor, this, _2));
		mColorSwatch->setOnSelectCallback(boost::bind(&LLPanelFace::onSelectColor, this, _2));
		mColorSwatch->setFollowsTop();
		mColorSwatch->setFollowsLeft();
		mColorSwatch->setCanApplyImmediately(TRUE);
	}

	mLabelColorTransp = getChild<LLTextBox>("color trans");
	if(mLabelColorTransp)
	{
		mLabelColorTransp->setFollowsTop();
		mLabelColorTransp->setFollowsLeft();
	}

	mCtrlColorTransp = getChild<LLSpinCtrl>("ColorTrans");
	if(mCtrlColorTransp)
	{
		mCtrlColorTransp->setCommitCallback(boost::bind(&LLPanelFace::onCommitAlpha, this, _2));
		mCtrlColorTransp->setPrecision(0);
		mCtrlColorTransp->setFollowsTop();
		mCtrlColorTransp->setFollowsLeft();
	}

	mCheckFullbright = getChild<LLCheckBoxCtrl>("checkbox fullbright");
	if (mCheckFullbright)
	{
		mCheckFullbright->setCommitCallback(LLPanelFace::onCommitFullbright, this);
	}

	mComboTexGen = getChild<LLComboBox>("combobox texgen");
	if(mComboTexGen)
	{
		mComboTexGen->setCommitCallback(LLPanelFace::onCommitTexGen, this);
		mComboTexGen->setFollows(FOLLOWS_LEFT | FOLLOWS_TOP);	
	}

	mComboMatMedia = getChild<LLComboBox>("combobox matmedia");
	if(mComboMatMedia)
	{
		mComboMatMedia->setCommitCallback(LLPanelFace::onCommitMaterialsMedia,this);
		mComboMatMedia->selectNthItem(MATMEDIA_MATERIAL);
	}

	mComboMatType = getChild<LLComboBox>("combobox mattype");
	if(mComboMatType)
	{
		mComboMatType->setCommitCallback(LLPanelFace::onCommitMaterialType, this);
		mComboMatType->selectNthItem(MATTYPE_DIFFUSE);
	}

	mCtrlGlow = getChild<LLSpinCtrl>("glow");
	if(mCtrlGlow)
	{
		mCtrlGlow->setCommitCallback(LLPanelFace::onCommitGlow, this);
	}
	

	clearCtrls();

	return TRUE;
}

LLPanelFace::LLPanelFace()
:	LLPanel()
{
}


LLPanelFace::~LLPanelFace()
{
	// Children all cleaned up by default view destructor.
}


void LLPanelFace::sendTexture()
{
	LLTextureCtrl* mTextureCtrl = getChild<LLTextureCtrl>("texture control");
	if(!mTextureCtrl) return;
	if( !mTextureCtrl->getTentative() )
	{
		// we grab the item id first, because we want to do a
		// permissions check in the selection manager. ARGH!
		LLUUID id = mTextureCtrl->getImageItemID();
		if(id.isNull())
		{
			id = mTextureCtrl->getImageAssetID();
		}
		LLSelectMgr::getInstance()->selectionSetImage(id);
	}
}

void LLPanelFace::sendBump()
{	
	LLComboBox*	mComboBumpiness = getChild<LLComboBox>("combobox bumpiness");
	if(!mComboBumpiness)return;
	U8 bump = (U8) mComboBumpiness->getCurrentIndex() & TEM_BUMP_MASK;
	LLSelectMgr::getInstance()->selectionSetBumpmap( bump );
}

void LLPanelFace::sendTexGen()
{
	LLComboBox*	mComboTexGen = getChild<LLComboBox>("combobox texgen");
	if(!mComboTexGen)return;
	U8 tex_gen = (U8) mComboTexGen->getCurrentIndex() << TEM_TEX_GEN_SHIFT;
	LLSelectMgr::getInstance()->selectionSetTexGen( tex_gen );
}

void LLPanelFace::sendShiny()
{
	LLComboBox*	mComboShininess = getChild<LLComboBox>("combobox shininess");
	if(!mComboShininess)return;
	U8 shiny = (U8) mComboShininess->getCurrentIndex() & TEM_SHINY_MASK;
	LLSelectMgr::getInstance()->selectionSetShiny( shiny );
}

void LLPanelFace::sendFullbright()
{
	LLCheckBoxCtrl*	mCheckFullbright = getChild<LLCheckBoxCtrl>("checkbox fullbright");
	if(!mCheckFullbright)return;
	U8 fullbright = mCheckFullbright->get() ? TEM_FULLBRIGHT_MASK : 0;
	LLSelectMgr::getInstance()->selectionSetFullbright( fullbright );
}

void LLPanelFace::sendColor()
{
	
	LLColorSwatchCtrl*	mColorSwatch = getChild<LLColorSwatchCtrl>("colorswatch");
	if(!mColorSwatch)return;
	LLColor4 color = mColorSwatch->get();

	LLSelectMgr::getInstance()->selectionSetColorOnly( color );
}

void LLPanelFace::sendAlpha()
{	
	LLSpinCtrl*	mCtrlColorTransp = getChild<LLSpinCtrl>("ColorTrans");
	if(!mCtrlColorTransp)return;
	F32 alpha = (100.f - mCtrlColorTransp->get()) / 100.f;

	LLSelectMgr::getInstance()->selectionSetAlphaOnly( alpha );
}


void LLPanelFace::sendGlow()
{
	LLSpinCtrl* mCtrlGlow = getChild<LLSpinCtrl>("glow");
	llassert(mCtrlGlow);
	if (mCtrlGlow)
	{
		F32 glow = mCtrlGlow->get();
		LLSelectMgr::getInstance()->selectionSetGlow( glow );
	}
}

struct LLPanelFaceSetTEFunctor : public LLSelectedTEFunctor
{
	LLPanelFaceSetTEFunctor(LLPanelFace* panel) : mPanel(panel) {}
	virtual bool apply(LLViewerObject* object, S32 te)
	{
		BOOL valid;
		F32 value;
		LLSpinCtrl*	ctrlTexScaleS = mPanel->getChild<LLSpinCtrl>("TexScaleU");
		LLSpinCtrl*	ctrlTexScaleT = mPanel->getChild<LLSpinCtrl>("TexScaleV");
		LLSpinCtrl*	ctrlTexOffsetS = mPanel->getChild<LLSpinCtrl>("TexOffsetU");
		LLSpinCtrl*	ctrlTexOffsetT = mPanel->getChild<LLSpinCtrl>("TexOffsetV");
		LLSpinCtrl*	ctrlTexRotation = mPanel->getChild<LLSpinCtrl>("TexRot");
		LLComboBox*		comboTexGen = mPanel->getChild<LLComboBox>("combobox texgen");
		llassert(comboTexGen);
		llassert(object);

		if (ctrlTexScaleS)
		{
			valid = !ctrlTexScaleS->getTentative(); // || !checkFlipScaleS->getTentative();
			if (valid)
			{
				value = ctrlTexScaleS->get();
				//if( checkFlipScaleS->get() )
				//{
				//	value = -value;
				//}
				if (comboTexGen &&
				    comboTexGen->getCurrentIndex() == 1)
				{
					value *= 0.5f;
				}
				object->setTEScaleS( te, value );
			}
		}

		if (ctrlTexScaleT)
		{
			valid = !ctrlTexScaleT->getTentative(); // || !checkFlipScaleT->getTentative();
			if (valid)
			{
				value = ctrlTexScaleT->get();
				//if( checkFlipScaleT->get() )
				//{
				//	value = -value;
				//}
				if (comboTexGen &&
				    comboTexGen->getCurrentIndex() == 1)
				{
					value *= 0.5f;
				}
				object->setTEScaleT( te, value );
			}
		}

		if (ctrlTexOffsetS)
		{
			valid = !ctrlTexOffsetS->getTentative();
			if (valid)
			{
				value = ctrlTexOffsetS->get();
				object->setTEOffsetS( te, value );
			}
		}

		if (ctrlTexOffsetT)
		{
			valid = !ctrlTexOffsetT->getTentative();
			if (valid)
			{
				value = ctrlTexOffsetT->get();
				object->setTEOffsetT( te, value );
			}
		}

		if (ctrlTexRotation)
		{
			valid = !ctrlTexRotation->getTentative();
			if (valid)
			{
				value = ctrlTexRotation->get() * DEG_TO_RAD;
				object->setTERotation( te, value );
			}
		}
		return true;
	}
private:
	LLPanelFace* mPanel;
};

// Functor that aligns a face to mCenterFace
struct LLPanelFaceSetAlignedTEFunctor : public LLSelectedTEFunctor
{
	LLPanelFaceSetAlignedTEFunctor(LLPanelFace* panel, LLFace* center_face) :
		mPanel(panel),
		mCenterFace(center_face) {}

	virtual bool apply(LLViewerObject* object, S32 te)
	{
		LLFace* facep = object->mDrawable->getFace(te);
		if (!facep)
		{
			return true;
		}

		if (facep->getViewerObject()->getVolume()->getNumVolumeFaces() <= te)
		{
			return true;
		}

		bool set_aligned = true;
		if (facep == mCenterFace)
		{
			set_aligned = false;
		}
		if (set_aligned)
		{
			LLVector2 uv_offset, uv_scale;
			F32 uv_rot;
			set_aligned = facep->calcAlignedPlanarTE(mCenterFace, &uv_offset, &uv_scale, &uv_rot);
			if (set_aligned)
			{
				object->setTEOffset(te, uv_offset.mV[VX], uv_offset.mV[VY]);
				object->setTEScale(te, uv_scale.mV[VX], uv_scale.mV[VY]);
				object->setTERotation(te, uv_rot);
			}
		}
		if (!set_aligned)
		{
			LLPanelFaceSetTEFunctor setfunc(mPanel);
			setfunc.apply(object, te);
		}
		return true;
	}
private:
	LLPanelFace* mPanel;
	LLFace* mCenterFace;
};

// Functor that tests if a face is aligned to mCenterFace
struct LLPanelFaceGetIsAlignedTEFunctor : public LLSelectedTEFunctor
{
	LLPanelFaceGetIsAlignedTEFunctor(LLFace* center_face) :
		mCenterFace(center_face) {}

	virtual bool apply(LLViewerObject* object, S32 te)
	{
		LLFace* facep = object->mDrawable->getFace(te);
		if (!facep)
		{
			return false;
		}

		if (facep->getViewerObject()->getVolume()->getNumVolumeFaces() <= te)
		{ //volume face does not exist, can't be aligned
			return false;
		}

		if (facep == mCenterFace)
		{
			return true;
		}
		
		LLVector2 aligned_st_offset, aligned_st_scale;
		F32 aligned_st_rot;
		if ( facep->calcAlignedPlanarTE(mCenterFace, &aligned_st_offset, &aligned_st_scale, &aligned_st_rot) )
		{
			const LLTextureEntry* tep = facep->getTextureEntry();
			LLVector2 st_offset, st_scale;
			tep->getOffset(&st_offset.mV[VX], &st_offset.mV[VY]);
			tep->getScale(&st_scale.mV[VX], &st_scale.mV[VY]);
			F32 st_rot = tep->getRotation();
			// needs a fuzzy comparison, because of fp errors
			if (is_approx_equal_fraction(st_offset.mV[VX], aligned_st_offset.mV[VX], 12) && 
				is_approx_equal_fraction(st_offset.mV[VY], aligned_st_offset.mV[VY], 12) && 
				is_approx_equal_fraction(st_scale.mV[VX], aligned_st_scale.mV[VX], 12) &&
				is_approx_equal_fraction(st_scale.mV[VY], aligned_st_scale.mV[VY], 12) &&
				is_approx_equal_fraction(st_rot, aligned_st_rot, 14))
			{
				return true;
			}
		}
		return false;
	}
private:
	LLFace* mCenterFace;
};

struct LLPanelFaceSendFunctor : public LLSelectedObjectFunctor
{
	virtual bool apply(LLViewerObject* object)
	{
		object->sendTEUpdate();
		return true;
	}
};

void LLPanelFace::sendTextureInfo()
{
	if ((bool)childGetValue("checkbox planar align").asBoolean())
	{
		struct f1 : public LLSelectedTEGetFunctor<LLFace *>
		{
			LLFace* get(LLViewerObject* object, S32 te)
			{
				return (object->mDrawable) ? object->mDrawable->getFace(te): NULL;
			}
		} get_last_face_func;
		LLFace* last_face;
		LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue(&get_last_face_func, last_face);

		LLPanelFaceSetAlignedTEFunctor setfunc(this, last_face);
		LLSelectMgr::getInstance()->getSelection()->applyToTEs(&setfunc);
	}
	else
	{
		LLPanelFaceSetTEFunctor setfunc(this);
		LLSelectMgr::getInstance()->getSelection()->applyToTEs(&setfunc);
	}

	LLPanelFaceSendFunctor sendfunc;
	LLSelectMgr::getInstance()->getSelection()->applyToObjects(&sendfunc);
}

void LLPanelFace::getState()
{
	LLViewerObject* objectp = LLSelectMgr::getInstance()->getSelection()->getFirstObject();

	if( objectp
		&& objectp->getPCode() == LL_PCODE_VOLUME
		&& objectp->permModify())
	{
		BOOL editable = objectp->permModify() && !objectp->isPermanentEnforced();

		// only turn on auto-adjust button if there is a media renderer and the media is loaded
		getChildView("button align")->setEnabled(editable);

		LLComboBox* combobox_matmedia = getChild<LLComboBox>("combobox matmedia");
		if (combobox_matmedia)
		{
			if (combobox_matmedia->getCurrentIndex() < MATMEDIA_MATERIAL)
			{
				combobox_matmedia->selectNthItem(MATMEDIA_MATERIAL);
			}
		}
		else
		{
			llwarns << "failed getChild for 'combobox matmedia'" << llendl;
		}
		getChildView("combobox matmedia")->setEnabled(editable);

		LLComboBox* combobox_mattype = getChild<LLComboBox>("combobox mattype");
		if (combobox_mattype)
		{
			if (combobox_mattype->getCurrentIndex() < MATTYPE_DIFFUSE)
			{
				combobox_mattype->selectNthItem(MATTYPE_DIFFUSE);
			}
		}
		else
		{
			llwarns << "failed getChild for 'combobox mattype'" << llendl;
		}
		getChildView("combobox mattype")->setEnabled(editable);
		onCommitMaterialsMedia(NULL, this);
		
		//if ( LLMediaEngine::getInstance()->getMediaRenderer () )
		//	if ( LLMediaEngine::getInstance()->getMediaRenderer ()->isLoaded () )
		//	{	
		//		
		//		//mLabelTexAutoFix->setEnabled ( editable );
		//		
		//		//mBtnAutoFix->setEnabled ( editable );
		//	}

		bool identical;
		LLTextureCtrl*	texture_ctrl = getChild<LLTextureCtrl>("texture control");
		
		// Texture
		{
			LLUUID id;
			struct f1 : public LLSelectedTEGetFunctor<LLUUID>
			{
				LLUUID get(LLViewerObject* object, S32 te_index)
				{
					LLUUID id;
					
					LLViewerTexture* image = object->getTEImage(te_index);
					if (image) id = image->getID();
					
					if (!id.isNull() && LLViewerMedia::textureHasMedia(id))
					{
						LLTextureEntry *te = object->getTE(te_index);
						if (te)
						{
							LLViewerTexture* tex = te->getID().notNull() ? gTextureList.findImage(te->getID()) : NULL ;
							if(!tex)
							{
								tex = LLViewerFetchedTexture::sDefaultImagep;
							}
							if (tex)
							{
								id = tex->getID();
							}
						}
					}
					return id;
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, id );

			BOOL is_alpha = FALSE;
			struct f2 : public LLSelectedTEGetFunctor<BOOL>
			{
				BOOL get(LLViewerObject* object, S32 te_index)
				{
					BOOL is_alpha = FALSE;
					
					LLViewerTexture* image = object->getTEImage(te_index);
					if (image) is_alpha = image->getIsAlphaMask();
					return is_alpha;
				}
			} func2;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func2, is_alpha );

			if(LLViewerMedia::textureHasMedia(id))
			{
				getChildView("button align")->setEnabled(editable);
			}
			
			if (!is_alpha)
			{
				// Selected texture has no alpha, force alpha mode None
				LLCtrlSelectionInterface* combobox_alphamode =
				      childGetSelectionInterface("combobox alphamode");
				if (combobox_alphamode)
				{
					combobox_alphamode->selectNthItem(ALPHAMODE_NONE);
				}
				else
				{
					llwarns << "failed childGetSelectionInterface for 'combobox alphamode'" << llendl;
				}
				onCommitAlphaMode(getChild<LLComboBox>("combobox alpha"),this);
			}
			
			if (identical)
			{
				// All selected have the same texture
				if(texture_ctrl)
				{
					texture_ctrl->setTentative( FALSE );
					texture_ctrl->setEnabled( editable );
					texture_ctrl->setImageAssetID( id );
					getChildView("combobox alphamode")->setEnabled(editable && is_alpha);
					getChildView("label alphamode")->setEnabled(editable && is_alpha);
					getChildView("maskcutoff")->setEnabled(editable && is_alpha);
					getChildView("label maskcutoff")->setEnabled(editable && is_alpha);
				}
			}
			else
			{
				if(texture_ctrl)
				{
					if( id.isNull() )
					{
						// None selected
						texture_ctrl->setTentative( FALSE );
						texture_ctrl->setEnabled( FALSE );
						texture_ctrl->setImageAssetID( LLUUID::null );
						getChildView("combobox alphamode")->setEnabled( FALSE );
						getChildView("label alphamode")->setEnabled( FALSE );
						getChildView("maskcutoff")->setEnabled( FALSE);
						getChildView("label maskcutoff")->setEnabled( FALSE );
					}
					else
					{
						// Tentative: multiple selected with different textures
						texture_ctrl->setTentative( TRUE );
						texture_ctrl->setEnabled( editable );
						texture_ctrl->setImageAssetID( id );
						getChildView("combobox alphamode")->setEnabled(editable && is_alpha);
						getChildView("label alphamode")->setEnabled(editable && is_alpha);
						getChildView("maskcutoff")->setEnabled(editable && is_alpha);
						getChildView("label maskcutoff")->setEnabled(editable && is_alpha);
					}
				}
			}
		}

		
		// planar align
		bool align_planar = false;
		bool identical_planar_aligned = false;
		bool is_planar = false;
		{
			LLCheckBoxCtrl*	cb_planar_align = getChild<LLCheckBoxCtrl>("checkbox planar align");
			align_planar = (cb_planar_align && cb_planar_align->get());
			struct f1 : public LLSelectedTEGetFunctor<bool>
			{
				bool get(LLViewerObject* object, S32 face)
				{
					return (object->getTE(face)->getTexGen() == LLTextureEntry::TEX_GEN_PLANAR);
				}
			} func;

			bool texgens_identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, is_planar );
			bool enabled = (editable && texgens_identical && is_planar);
			childSetValue("checkbox planar align", align_planar && enabled);
			childSetEnabled("checkbox planar align", enabled);

			if (align_planar && enabled)
			{
				struct f2 : public LLSelectedTEGetFunctor<LLFace *>
				{
					LLFace* get(LLViewerObject* object, S32 te)
					{
						return (object->mDrawable) ? object->mDrawable->getFace(te): NULL;
					}
				} get_te_face_func;
				LLFace* last_face;
				LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue(&get_te_face_func, last_face);
				LLPanelFaceGetIsAlignedTEFunctor get_is_aligend_func(last_face);
				// this will determine if the texture param controls are tentative:
				identical_planar_aligned = LLSelectMgr::getInstance()->getSelection()->applyToTEs(&get_is_aligend_func);
			}
		}
		
		// Texture scale
		{
			F32 scale_s = 1.f;
			struct f2 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return object->getTE(face)->mScaleS;
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, scale_s );
			identical = align_planar ? identical_planar_aligned : identical;
			getChild<LLUICtrl>("TexScaleU")->setValue(editable ? scale_s : 0);
			getChild<LLUICtrl>("TexScaleU")->setTentative(LLSD((BOOL)(!identical)));
			getChildView("TexScaleU")->setEnabled(editable);
		}

		{
			F32 scale_t = 1.f;
			struct f3 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return object->getTE(face)->mScaleT;
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, scale_t );
			identical = align_planar ? identical_planar_aligned : identical;

			getChild<LLUICtrl>("TexScaleV")->setValue(editable ? scale_t : 0);
			getChild<LLUICtrl>("TexScaleV")->setTentative(LLSD((BOOL)(!identical)));
			getChildView("TexScaleV")->setEnabled(editable);
		}

		// Texture offset
		{
			getChildView("tex offset")->setEnabled(editable);
			F32 offset_s = 0.f;
			struct f4 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return object->getTE(face)->mOffsetS;
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, offset_s );
			identical = align_planar ? identical_planar_aligned : identical;
			getChild<LLUICtrl>("TexOffsetU")->setValue(editable ? offset_s : 0);
			getChild<LLUICtrl>("TexOffsetU")->setTentative(!identical);
			getChildView("TexOffsetU")->setEnabled(editable);
		}

		{
			F32 offset_t = 0.f;
			struct f5 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return object->getTE(face)->mOffsetT;
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, offset_t );
			identical = align_planar ? identical_planar_aligned : identical;
			getChild<LLUICtrl>("TexOffsetV")->setValue(editable ? offset_t : 0);
			getChild<LLUICtrl>("TexOffsetV")->setTentative(!identical);
			getChildView("TexOffsetV")->setEnabled(editable);
		}

		// Texture rotation
		{
			F32 rotation = 0.f;
			struct f6 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return object->getTE(face)->mRotation;
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, rotation );
			identical = align_planar ? identical_planar_aligned : identical;
			getChild<LLUICtrl>("TexRot")->setValue(editable ? rotation * RAD_TO_DEG : 0);
			getChild<LLUICtrl>("TexRot")->setTentative(!identical);
			getChildView("TexRot")->setEnabled(editable);
		}

		// Color swatch
		{
			getChildView("color label")->setEnabled(editable);
		}
		LLColorSwatchCtrl*	mColorSwatch = getChild<LLColorSwatchCtrl>("colorswatch");
		LLColor4 color = LLColor4::white;
		if(mColorSwatch)
		{
			struct f7 : public LLSelectedTEGetFunctor<LLColor4>
			{
				LLColor4 get(LLViewerObject* object, S32 face)
				{
					return object->getTE(face)->getColor();
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, color );
			
			mColorSwatch->setOriginal(color);
			mColorSwatch->set(color, TRUE);

			mColorSwatch->setValid(editable);
			mColorSwatch->setEnabled( editable );
			mColorSwatch->setCanApplyImmediately( editable );
		}
		// Color transparency
		{
			getChildView("color trans")->setEnabled(editable);
		}

		F32 transparency = (1.f - color.mV[VALPHA]) * 100.f;
		{
			getChild<LLUICtrl>("ColorTrans")->setValue(editable ? transparency : 0);
			getChildView("ColorTrans")->setEnabled(editable);
		}

		{
			F32 glow = 0.f;
			struct f8 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return object->getTE(face)->getGlow();
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, glow );

			getChild<LLUICtrl>("glow")->setValue(glow);
			getChildView("glow")->setEnabled(editable);
			getChild<LLUICtrl>("glow")->setTentative(!identical);
			getChildView("glow label")->setEnabled(editable);

		}

		// Bump
		{
			F32 shinyf = 0.f;
			struct f9 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return (F32)(object->getTE(face)->getShiny());
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, shinyf );
			LLCtrlSelectionInterface* combobox_shininess =
			      childGetSelectionInterface("combobox shininess");
			if (combobox_shininess)
			{
				combobox_shininess->selectNthItem((S32)shinyf);
			}
			else
			{
				llwarns << "failed childGetSelectionInterface for 'combobox shininess'" << llendl;
			}
			getChildView("combobox shininess")->setEnabled(editable);
			getChild<LLUICtrl>("combobox shininess")->setTentative(!identical);
			getChildView("label shininess")->setEnabled(editable);
			getChildView("glossiness")->setEnabled(editable);
			getChild<LLUICtrl>("glossiness")->setTentative(!identical);
			getChildView("label glossiness")->setEnabled(editable);
			getChildView("environment")->setEnabled(editable);
			getChild<LLUICtrl>("environment")->setTentative(!identical);
			getChildView("label environment")->setEnabled(editable);
			getChildView("shinycolorswatch")->setEnabled(editable);
			getChild<LLUICtrl>("shinycolorswatch")->setTentative(!identical);
			getChildView("label shinycolor")->setEnabled(editable);
		}

		{
			F32 bumpf = 0.f;
			struct f10 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return (F32)(object->getTE(face)->getBumpmap());
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, bumpf );
			LLCtrlSelectionInterface* combobox_bumpiness =
			      childGetSelectionInterface("combobox bumpiness");
			if (combobox_bumpiness)
			{
				combobox_bumpiness->selectNthItem((S32)bumpf);
			}
			else
			{
				llwarns << "failed childGetSelectionInterface for 'combobox bumpiness'" << llendl;
			}
			getChildView("combobox bumpiness")->setEnabled(editable);
			getChild<LLUICtrl>("combobox bumpiness")->setTentative(!identical);
			getChildView("label bumpiness")->setEnabled(editable);
		}

		{
			F32 genf = 0.f;
			struct f11 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return (F32)(object->getTE(face)->getTexGen());
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, genf );
			S32 selected_texgen = ((S32) genf) >> TEM_TEX_GEN_SHIFT;
			LLCtrlSelectionInterface* combobox_texgen =
			      childGetSelectionInterface("combobox texgen");
			if (combobox_texgen)
			{
				combobox_texgen->selectNthItem(selected_texgen);
			}
			else
			{
				llwarns << "failed childGetSelectionInterface for 'combobox texgen'" << llendl;
			}
			getChildView("combobox texgen")->setEnabled(editable);
			getChild<LLUICtrl>("combobox texgen")->setTentative(!identical);
			getChildView("tex gen")->setEnabled(editable);

			if (selected_texgen == 1)
			{
				getChild<LLUICtrl>("TexScaleU")->setValue(2.0f * getChild<LLUICtrl>("TexScaleU")->getValue().asReal() );
				getChild<LLUICtrl>("TexScaleV")->setValue(2.0f * getChild<LLUICtrl>("TexScaleV")->getValue().asReal() );

				// EXP-1507 (change label based on the mapping mode)
				getChild<LLUICtrl>("rpt")->setValue(getString("string repeats per meter"));
			}
			else
			if (selected_texgen == 0)  // FIXME: should not be magic numbers
			{
				getChild<LLUICtrl>("rpt")->setValue(getString("string repeats per face"));
			}
		}

		{
			F32 fullbrightf = 0.f;
			struct f12 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					return (F32)(object->getTE(face)->getFullbright());
				}
			} func;
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, fullbrightf );

			getChild<LLUICtrl>("checkbox fullbright")->setValue((S32)fullbrightf);
			getChildView("checkbox fullbright")->setEnabled(editable);
			getChild<LLUICtrl>("checkbox fullbright")->setTentative(!identical);
		}
		
		// Repeats per meter label
		{
			getChildView("rpt")->setEnabled(editable);
		}

		// Repeats per meter
		{
			F32 repeats = 1.f;
			struct f13 : public LLSelectedTEGetFunctor<F32>
			{
				F32 get(LLViewerObject* object, S32 face)
				{
					U32 s_axis = VX;
					U32 t_axis = VY;
					// BUG: Only repeats along S axis
					// BUG: Only works for boxes.
					LLPrimitive::getTESTAxes(face, &s_axis, &t_axis);
					return object->getTE(face)->mScaleS / object->getScale().mV[s_axis];
				}
			} func;			
			identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue( &func, repeats );
			
			getChild<LLUICtrl>("rptctrl")->setValue(editable ? repeats : 0);
			getChild<LLUICtrl>("rptctrl")->setTentative(!identical);
			LLComboBox*	mComboTexGen = getChild<LLComboBox>("combobox texgen");
			if (mComboTexGen)
			{
				BOOL enabled = editable && (!mComboTexGen || mComboTexGen->getCurrentIndex() != 1);
				getChildView("rptctrl")->setEnabled(enabled);
			}
		}

		// Set variable values for numeric expressions
		LLCalc* calcp = LLCalc::getInstance();
		calcp->setVar(LLCalc::TEX_U_SCALE, childGetValue("TexScaleU").asReal());
		calcp->setVar(LLCalc::TEX_V_SCALE, childGetValue("TexScaleV").asReal());
		calcp->setVar(LLCalc::TEX_U_OFFSET, childGetValue("TexOffsetU").asReal());
		calcp->setVar(LLCalc::TEX_V_OFFSET, childGetValue("TexOffsetV").asReal());
		calcp->setVar(LLCalc::TEX_ROTATION, childGetValue("TexRot").asReal());
		calcp->setVar(LLCalc::TEX_TRANSPARENCY, childGetValue("ColorTrans").asReal());
		calcp->setVar(LLCalc::TEX_GLOW, childGetValue("glow").asReal());
	}
	else
	{
		// Disable all UICtrls
		clearCtrls();

		// Disable non-UICtrls
		LLTextureCtrl*	texture_ctrl = getChild<LLTextureCtrl>("texture control"); 
		if(texture_ctrl)
		{
			texture_ctrl->setImageAssetID( LLUUID::null );
			texture_ctrl->setEnabled( FALSE );  // this is a LLUICtrl, but we don't want it to have keyboard focus so we add it as a child, not a ctrl.
// 			texture_ctrl->setValid(FALSE);
		}
		LLColorSwatchCtrl* mColorSwatch = getChild<LLColorSwatchCtrl>("colorswatch");
		if(mColorSwatch)
		{
			mColorSwatch->setEnabled( FALSE );			
			mColorSwatch->setFallbackImageName("locked_image.j2c" );
			mColorSwatch->setValid(FALSE);
		}
		getChildView("color trans")->setEnabled(FALSE);
		getChildView("rpt")->setEnabled(FALSE);
		getChildView("tex offset")->setEnabled(FALSE);
		getChildView("tex gen")->setEnabled(FALSE);
		getChildView("label shininess")->setEnabled(FALSE);
		getChildView("label bumpiness")->setEnabled(FALSE);

		getChildView("button align")->setEnabled(FALSE);
		//getChildView("has media")->setEnabled(FALSE);
		//getChildView("media info set")->setEnabled(FALSE);

		// Set variable values for numeric expressions
		LLCalc* calcp = LLCalc::getInstance();
		calcp->clearVar(LLCalc::TEX_U_SCALE);
		calcp->clearVar(LLCalc::TEX_V_SCALE);
		calcp->clearVar(LLCalc::TEX_U_OFFSET);
		calcp->clearVar(LLCalc::TEX_V_OFFSET);
		calcp->clearVar(LLCalc::TEX_ROTATION);
		calcp->clearVar(LLCalc::TEX_TRANSPARENCY);
		calcp->clearVar(LLCalc::TEX_GLOW);		
	}
}


void LLPanelFace::refresh()
{
	getState();
}

//
// Static functions
//

// static
F32 LLPanelFace::valueGlow(LLViewerObject* object, S32 face)
{
	return (F32)(object->getTE(face)->getGlow());
}


void LLPanelFace::onCommitColor(const LLSD& data)
{
	sendColor();
}

void LLPanelFace::onCommitAlpha(const LLSD& data)
{
	sendAlpha();
}

void LLPanelFace::onCancelColor(const LLSD& data)
{
	LLSelectMgr::getInstance()->selectionRevertColors();
}

void LLPanelFace::onSelectColor(const LLSD& data)
{
	LLSelectMgr::getInstance()->saveSelectedObjectColors();
	sendColor();
}

// static
void LLPanelFace::onCommitMaterialsMedia(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	LLComboBox* comboMaterialsMedia = self->getChild<LLComboBox>("combobox matmedia");
	if (!comboMaterialsMedia)
	{
		return;
	}
	U32 materials_media = comboMaterialsMedia->getCurrentIndex();
	LLComboBox* comboMaterialType = self->getChild<LLComboBox>("combobox mattype");
	if (!comboMaterialType)
	{
		return;
	}
	U32 material_type = comboMaterialType->getCurrentIndex();
	bool show_media = (materials_media == MATMEDIA_MEDIA);
	bool show_texture = (!show_media) && (material_type == MATTYPE_DIFFUSE);
	bool show_bumpiness = (!show_media) && (material_type == MATTYPE_NORMAL);
	bool show_shininess = (!show_media) && (material_type == MATTYPE_SPECULAR);
	self->getChildView("combobox mattype")->setVisible(!show_media);
	self->getChildView("media_info")->setVisible(show_media);
	self->getChildView("add_media")->setVisible(show_media);
	self->getChildView("delete_media")->setVisible(show_media);
	self->getChildView("button align")->setVisible(show_media);
	self->getChildView("texture control")->setVisible(show_texture);
	self->getChildView("label alphamode")->setVisible(show_texture);
	self->getChildView("combobox alphamode")->setVisible(show_texture);
	self->getChildView("label maskcutoff")->setVisible(false);
	self->getChildView("maskcutoff")->setVisible(false);
	if (show_texture)
	{
		onCommitAlphaMode(ctrl, userdata);
	}
	self->getChildView("shinytexture control")->setVisible(show_shininess);
	self->getChildView("combobox shininess")->setVisible(show_shininess);
	self->getChildView("label shininess")->setVisible(show_shininess);
	self->getChildView("label glossiness")->setVisible(false);
	self->getChildView("glossiness")->setVisible(false);
	self->getChildView("label environment")->setVisible(false);
	self->getChildView("environment")->setVisible(false);
	self->getChildView("label shinycolor")->setVisible(false);
	self->getChildView("shinycolorswatch")->setVisible(false);
	if (show_shininess)
	{
		onCommitShiny(ctrl, userdata);
	}
	self->getChildView("bumpytexture control")->setVisible(show_bumpiness);
	self->getChildView("combobox bumpiness")->setVisible(show_bumpiness);
	self->getChildView("label bumpiness")->setVisible(show_bumpiness);
}

// static
void LLPanelFace::onCommitMaterialType(LLUICtrl* ctrl, void* userdata)
{
	onCommitMaterialsMedia(ctrl, userdata);
}

// static
void LLPanelFace::onCommitBump(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	self->sendBump();
}

// static
void LLPanelFace::onCommitTexGen(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	self->sendTexGen();
}

// static
void LLPanelFace::onCommitShiny(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	LLComboBox* comboShiny = self->getChild<LLComboBox>("combobox shininess");
	if (!comboShiny)
	{
		return;
	}
	U32 shiny_value = comboShiny->getCurrentIndex();
	bool show_shinyctrls = (shiny_value == SHINY_TEXTURE); // Use texture
	self->getChildView("label glossiness")->setVisible(show_shinyctrls);
	self->getChildView("glossiness")->setVisible(show_shinyctrls);
	self->getChildView("label environment")->setVisible(show_shinyctrls);
	self->getChildView("environment")->setVisible(show_shinyctrls);
	self->getChildView("label shinycolor")->setVisible(show_shinyctrls);
	self->getChildView("shinycolorswatch")->setVisible(show_shinyctrls);
	self->sendShiny();
}

// static
void LLPanelFace::onCommitAlphaMode(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	LLComboBox* comboAlphaMode = self->getChild<LLComboBox>("combobox alphamode");
	if (!comboAlphaMode)
	{
		return;
	}
	U32 alpha_value = comboAlphaMode->getCurrentIndex();
	bool show_alphactrls = (alpha_value == ALPHAMODE_MASK); // Alpha masking
	self->getChildView("label maskcutoff")->setVisible(show_alphactrls);
	self->getChildView("maskcutoff")->setVisible(show_alphactrls);
}

// static
void LLPanelFace::onCommitFullbright(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	self->sendFullbright();
}

// static
void LLPanelFace::onCommitGlow(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	self->sendGlow();
}

// static
BOOL LLPanelFace::onDragTexture(LLUICtrl*, LLInventoryItem* item)
{
	BOOL accept = TRUE;
	for (LLObjectSelection::root_iterator iter = LLSelectMgr::getInstance()->getSelection()->root_begin();
		 iter != LLSelectMgr::getInstance()->getSelection()->root_end(); iter++)
	{
		LLSelectNode* node = *iter;
		LLViewerObject* obj = node->getObject();
		if(!LLToolDragAndDrop::isInventoryDropAcceptable(obj, item))
		{
			accept = FALSE;
			break;
		}
	}
	return accept;
}

void LLPanelFace::onCommitTexture( const LLSD& data )
{
	LLViewerStats::getInstance()->incStat(LLViewerStats::ST_EDIT_TEXTURE_COUNT );
	sendTexture();
}

void LLPanelFace::onCancelTexture(const LLSD& data)
{
	LLSelectMgr::getInstance()->selectionRevertTextures();
}

void LLPanelFace::onSelectTexture(const LLSD& data)
{
	LLSelectMgr::getInstance()->saveSelectedObjectTextures();
	sendTexture();
}


// static
void LLPanelFace::onCommitTextureInfo( LLUICtrl* ctrl, void* userdata )
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	self->sendTextureInfo();
}

// Commit the number of repeats per meter
// static
void LLPanelFace::onCommitRepeatsPerMeter(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	
	gFocusMgr.setKeyboardFocus( NULL );

	//F32 repeats_per_meter = self->mCtrlRepeatsPerMeter->get();
	F32 repeats_per_meter = (F32)self->getChild<LLUICtrl>("rptctrl")->getValue().asReal();//self->mCtrlRepeatsPerMeter->get();
	LLSelectMgr::getInstance()->selectionTexScaleAutofit( repeats_per_meter );
}

struct LLPanelFaceSetMediaFunctor : public LLSelectedTEFunctor
{
	virtual bool apply(LLViewerObject* object, S32 te)
	{
		viewer_media_t pMediaImpl;
				
		const LLTextureEntry* tep = object->getTE(te);
		const LLMediaEntry* mep = tep->hasMedia() ? tep->getMediaData() : NULL;
		if ( mep )
		{
			pMediaImpl = LLViewerMedia::getMediaImplFromTextureID(mep->getMediaID());
		}
		
		if ( pMediaImpl.isNull())
		{
			// If we didn't find face media for this face, check whether this face is showing parcel media.
			pMediaImpl = LLViewerMedia::getMediaImplFromTextureID(tep->getID());
		}
		
		if ( pMediaImpl.notNull())
		{
			LLPluginClassMedia *media = pMediaImpl->getMediaPlugin();
			if(media)
			{
				S32 media_width = media->getWidth();
				S32 media_height = media->getHeight();
				S32 texture_width = media->getTextureWidth();
				S32 texture_height = media->getTextureHeight();
				F32 scale_s = (F32)media_width / (F32)texture_width;
				F32 scale_t = (F32)media_height / (F32)texture_height;

				// set scale and adjust offset
				object->setTEScaleS( te, scale_s );
				object->setTEScaleT( te, scale_t );	// don't need to flip Y anymore since QT does this for us now.
				object->setTEOffsetS( te, -( 1.0f - scale_s ) / 2.0f );
				object->setTEOffsetT( te, -( 1.0f - scale_t ) / 2.0f );
			}
		}
		return true;
	};
};

void LLPanelFace::onClickAutoFix(void* userdata)
{
	LLPanelFaceSetMediaFunctor setfunc;
	LLSelectMgr::getInstance()->getSelection()->applyToTEs(&setfunc);

	LLPanelFaceSendFunctor sendfunc;
	LLSelectMgr::getInstance()->getSelection()->applyToObjects(&sendfunc);
}



// TODO: I don't know who put these in or what these are for???
void LLPanelFace::setMediaURL(const std::string& url)
{
}
void LLPanelFace::setMediaType(const std::string& mime_type)
{
}

// static
void LLPanelFace::onCommitPlanarAlign(LLUICtrl* ctrl, void* userdata)
{
	LLPanelFace* self = (LLPanelFace*) userdata;
	self->getState();
	self->sendTextureInfo();
}

void LLPanelFace::onTextureSelectionChanged(LLInventoryItem* itemp)
{
	LLTextureCtrl* texture_ctrl = getChild<LLTextureCtrl>("texture control");
	if (texture_ctrl)
	{
		LLUUID obj_owner_id;
		std::string obj_owner_name;
		LLSelectMgr::instance().selectGetOwner(obj_owner_id, obj_owner_name);

		LLSaleInfo sale_info;
		LLSelectMgr::instance().selectGetSaleInfo(sale_info);

		bool can_copy = itemp->getPermissions().allowCopyBy(gAgentID); // do we have perm to copy this texture?
		bool can_transfer = itemp->getPermissions().allowOperationBy(PERM_TRANSFER, gAgentID); // do we have perm to transfer this texture?
		bool is_object_owner = gAgentID == obj_owner_id; // does object for which we are going to apply texture belong to the agent?
		bool not_for_sale = !sale_info.isForSale(); // is object for which we are going to apply texture not for sale?

		if (can_copy && can_transfer)
		{
			texture_ctrl->setCanApply(true, true);
			return;
		}

		// if texture has (no-transfer) attribute it can be applied only for object which we own and is not for sale
		texture_ctrl->setCanApply(false, can_transfer ? true : is_object_owner && not_for_sale);

		if (gSavedSettings.getBOOL("TextureLivePreview"))
		{
			LLNotificationsUtil::add("LivePreviewUnavailable");
		}
	}
}