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diff --git a/indra/llrender/lluiimage.cpp b/indra/llrender/lluiimage.cpp
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+/** 
+ * @file lluiimage.cpp
+ * @brief UI implementation
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+// Utilities functions the user interface needs
+
+//#include "llviewerprecompiledheaders.h"
+#include "linden_common.h"
+
+// Project includes
+#include "lluiimage.h"
+#include "llrender2dutils.h"
+
+LLUIImage::LLUIImage(const std::string& name, LLPointer<LLTexture> image)
+:	mName(name),
+	mImage(image),
+	mScaleRegion(0.f, 1.f, 1.f, 0.f),
+	mClipRegion(0.f, 1.f, 1.f, 0.f),
+	mUniformScaling(TRUE),
+	mNoClip(TRUE),
+	mImageLoaded(NULL)
+{
+}
+
+LLUIImage::~LLUIImage()
+{
+	delete mImageLoaded;
+}
+
+void LLUIImage::setClipRegion(const LLRectf& region) 
+{ 
+	mClipRegion = region; 
+	mNoClip = mClipRegion.mLeft == 0.f
+				&& mClipRegion.mRight == 1.f
+				&& mClipRegion.mBottom == 0.f
+				&& mClipRegion.mTop == 1.f;
+}
+
+void LLUIImage::setScaleRegion(const LLRectf& region) 
+{ 
+	mScaleRegion = region; 
+	mUniformScaling = mScaleRegion.mLeft == 0.f
+					&& mScaleRegion.mRight == 1.f
+					&& mScaleRegion.mBottom == 0.f
+					&& mScaleRegion.mTop == 1.f;
+}
+
+//TODO: move drawing implementation inside class
+void LLUIImage::draw(S32 x, S32 y, const LLColor4& color) const
+{
+	gl_draw_scaled_image(x, y, getWidth(), getHeight(), mImage, color, mClipRegion);
+}
+
+void LLUIImage::draw(S32 x, S32 y, S32 width, S32 height, const LLColor4& color) const
+{
+	if (mUniformScaling)
+	{
+		gl_draw_scaled_image(x, y, width, height, mImage, color, mClipRegion);
+	}
+	else
+	{
+		gl_draw_scaled_image_with_border(
+			x, y, 
+			width, height, 
+			mImage, 
+			color,
+			FALSE,
+			mClipRegion,
+			mScaleRegion);
+	}
+}
+
+void LLUIImage::drawSolid(S32 x, S32 y, S32 width, S32 height, const LLColor4& color) const
+{
+	gl_draw_scaled_image_with_border(
+		x, y, 
+		width, height, 
+		mImage, 
+		color, 
+		TRUE,
+		mClipRegion,
+		mScaleRegion);
+}
+
+void LLUIImage::drawBorder(S32 x, S32 y, S32 width, S32 height, const LLColor4& color, S32 border_width) const
+{
+	LLRect border_rect;
+	border_rect.setOriginAndSize(x, y, width, height);
+	border_rect.stretch(border_width, border_width);
+	drawSolid(border_rect, color);
+}
+
+void LLUIImage::draw3D(const LLVector3& origin_agent, const LLVector3& x_axis, const LLVector3& y_axis, 
+						const LLRect& rect, const LLColor4& color)
+{
+	F32 border_scale = 1.f;
+	F32 border_height = (1.f - mScaleRegion.getHeight()) * getHeight();
+	F32 border_width = (1.f - mScaleRegion.getWidth()) * getWidth();
+	if (rect.getHeight() < border_height || rect.getWidth() < border_width)
+	{
+		 if(border_height - rect.getHeight() > border_width - rect.getWidth())
+		 {
+			 border_scale = (F32)rect.getHeight() / border_height;
+		 }
+		 else
+		 {
+			border_scale = (F32)rect.getWidth() / border_width;
+		 }
+	}
+
+	LLRender2D::pushMatrix();
+	{ 
+		LLVector3 rect_origin = origin_agent + (rect.mLeft * x_axis) + (rect.mBottom * y_axis); 
+		LLRender2D::translate(rect_origin.mV[VX],
+						rect_origin.mV[VY], 
+						rect_origin.mV[VZ]);
+		gGL.getTexUnit(0)->bind(getImage());
+		gGL.color4fv(color.mV);
+
+		LLRectf center_uv_rect(mClipRegion.mLeft + mScaleRegion.mLeft * mClipRegion.getWidth(),
+							mClipRegion.mBottom + mScaleRegion.mTop * mClipRegion.getHeight(),
+							mClipRegion.mLeft + mScaleRegion.mRight * mClipRegion.getWidth(),
+							mClipRegion.mBottom + mScaleRegion.mBottom * mClipRegion.getHeight());
+		gl_segmented_rect_3d_tex(mClipRegion,
+								center_uv_rect,
+								LLRectf(border_width * border_scale * 0.5f / (F32)rect.getWidth(),
+										(rect.getHeight() - (border_height * border_scale * 0.5f)) / (F32)rect.getHeight(),
+										(rect.getWidth() - (border_width * border_scale * 0.5f)) / (F32)rect.getWidth(),
+										(border_height * border_scale * 0.5f) / (F32)rect.getHeight()),
+								rect.getWidth() * x_axis, 
+								rect.getHeight() * y_axis);
+		
+	} LLRender2D::popMatrix();
+}
+
+
+S32 LLUIImage::getWidth() const
+{ 
+	// return clipped dimensions of actual image area
+	return llround((F32)mImage->getWidth(0) * mClipRegion.getWidth()); 
+}
+
+S32 LLUIImage::getHeight() const
+{ 
+	// return clipped dimensions of actual image area
+	return llround((F32)mImage->getHeight(0) * mClipRegion.getHeight()); 
+}
+
+S32 LLUIImage::getTextureWidth() const
+{
+	return mImage->getWidth(0);
+}
+
+S32 LLUIImage::getTextureHeight() const
+{
+	return mImage->getHeight(0);
+}
+
+boost::signals2::connection LLUIImage::addLoadedCallback( const image_loaded_signal_t::slot_type& cb ) 
+{
+	if (!mImageLoaded) 
+	{
+		mImageLoaded = new image_loaded_signal_t();
+	}
+	return mImageLoaded->connect(cb);
+}
+
+
+void LLUIImage::onImageLoaded()
+{
+	if (mImageLoaded)
+	{
+		(*mImageLoaded)();
+	}
+}
+
+
+namespace LLInitParam
+{
+	void ParamValue<LLUIImage*>::updateValueFromBlock()
+	{
+		// The keyword "none" is specifically requesting a null image
+		// do not default to current value. Used to overwrite template images. 
+		if (name() == "none")
+		{
+			updateValue(NULL);
+			return;
+		}
+
+		LLUIImage* imagep =  LLRender2D::getUIImage(name());
+		if (imagep)
+		{
+			updateValue(imagep);
+		}
+	}
+	
+	void ParamValue<LLUIImage*>::updateBlockFromValue(bool make_block_authoritative)
+	{
+		if (getValue() == NULL)
+		{
+			name.set("none", make_block_authoritative);
+		}
+		else
+		{
+			name.set(getValue()->getName(), make_block_authoritative);
+		}
+	}
+
+	
+	bool ParamCompare<LLUIImage*, false>::equals(
+		LLUIImage* const &a,
+		LLUIImage* const &b)
+	{
+		// force all LLUIImages for XML UI export to be "non-default"
+		if (!a && !b)
+			return false;
+		else
+			return (a == b);
+	}
+}
+