/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright  2000-2005 The OGRE Team
Also see acknowledgements in Readme.html

This program 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; either version 2 of the License, or (at your option) any later
version.

This program 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.
-----------------------------------------------------------------------------
*/
#include "OgreStableHeaders.h"

#include "OgreBorderPanelOverlayElement.h"
#include "OgreMaterialManager.h"
#include "OgreMaterial.h"
#include "OgreStringConverter.h"
#include "OgreOverlayManager.h"
#include "OgreHardwareBufferManager.h"
#include "OgreHardwareVertexBuffer.h"
#include "OgreHardwareIndexBuffer.h"
#include "OgreException.h"
#include "OgreRenderQueue.h"
#include "OgreRoot.h"
#include "OgreRenderSystem.h"

namespace Ogre {
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::msTypeName = "BorderPanel";
    BorderPanelOverlayElement::CmdBorderSize BorderPanelOverlayElement::msCmdBorderSize;
    BorderPanelOverlayElement::CmdBorderMaterial BorderPanelOverlayElement::msCmdBorderMaterial;
    BorderPanelOverlayElement::CmdBorderLeftUV BorderPanelOverlayElement::msCmdBorderLeftUV;
    BorderPanelOverlayElement::CmdBorderTopUV BorderPanelOverlayElement::msCmdBorderTopUV;
    BorderPanelOverlayElement::CmdBorderBottomUV BorderPanelOverlayElement::msCmdBorderBottomUV;
    BorderPanelOverlayElement::CmdBorderRightUV BorderPanelOverlayElement::msCmdBorderRightUV;
    BorderPanelOverlayElement::CmdBorderTopLeftUV BorderPanelOverlayElement::msCmdBorderTopLeftUV;
    BorderPanelOverlayElement::CmdBorderBottomLeftUV BorderPanelOverlayElement::msCmdBorderBottomLeftUV;
    BorderPanelOverlayElement::CmdBorderTopRightUV BorderPanelOverlayElement::msCmdBorderTopRightUV;
    BorderPanelOverlayElement::CmdBorderBottomRightUV BorderPanelOverlayElement::msCmdBorderBottomRightUV;

    #define BCELL_UV(x) (x * 4 * 2)
    #define POSITION_BINDING 0
    #define TEXCOORD_BINDING 1
    //---------------------------------------------------------------------
    BorderPanelOverlayElement::BorderPanelOverlayElement(const String& name)
      : PanelOverlayElement(name), 
        mLeftBorderSize(0),
        mRightBorderSize(0),
        mTopBorderSize(0),
        mBottomBorderSize(0),
        mPixelLeftBorderSize(0),
        mPixelRightBorderSize(0),
        mPixelTopBorderSize(0),
        mPixelBottomBorderSize(0),
        mpBorderMaterial(0),
        mBorderRenderable(0)
    {
        if (createParamDictionary("BorderPanelOverlayElement"))
        {
            addBaseParameters();
        }
    }
    //---------------------------------------------------------------------
    BorderPanelOverlayElement::~BorderPanelOverlayElement()
    {
        delete mRenderOp2.vertexData;
        delete mRenderOp2.indexData;
        delete mBorderRenderable;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::initialise(void)
    {
		bool init = !mInitialised;

        PanelOverlayElement::initialise();

        // superclass will handle the interior panel area 

        if (init)
		{
			// Setup render op in advance
			mRenderOp2.vertexData = new VertexData();
			mRenderOp2.vertexData->vertexCount = 4 * 8; // 8 cells, can't necessarily share vertices cos
														// texcoords may differ
			mRenderOp2.vertexData->vertexStart = 0;

			// Vertex declaration
			VertexDeclaration* decl = mRenderOp2.vertexData->vertexDeclaration;
			// Position and texture coords each have their own buffers to allow
			// each to be edited separately with the discard flag
			decl->addElement(POSITION_BINDING, 0, VET_FLOAT3, VES_POSITION);
			decl->addElement(TEXCOORD_BINDING, 0, VET_FLOAT2, VES_TEXTURE_COORDINATES, 0);

			// Vertex buffer #1, position
			HardwareVertexBufferSharedPtr vbuf = HardwareBufferManager::getSingleton()
				.createVertexBuffer(
					decl->getVertexSize(POSITION_BINDING), 
					mRenderOp2.vertexData->vertexCount,
					HardwareBuffer::HBU_STATIC_WRITE_ONLY);
			// bind position
			VertexBufferBinding* binding = mRenderOp2.vertexData->vertexBufferBinding;
			binding->setBinding(POSITION_BINDING, vbuf);

			// Vertex buffer #2, texcoords
			vbuf = HardwareBufferManager::getSingleton()
				.createVertexBuffer(
					decl->getVertexSize(TEXCOORD_BINDING), 
					mRenderOp2.vertexData->vertexCount,
					HardwareBuffer::HBU_STATIC_WRITE_ONLY, true);
			// bind texcoord
			binding->setBinding(TEXCOORD_BINDING, vbuf);

			mRenderOp2.operationType = RenderOperation::OT_TRIANGLE_LIST;
			mRenderOp2.useIndexes = true;
			// Index data
			mRenderOp2.indexData = new IndexData();
			mRenderOp2.indexData->indexCount = 8 * 6;
			mRenderOp2.indexData->indexStart = 0;

			/* Each cell is
				0-----2
				|    /|
				|  /  |
				|/    |
				1-----3
			*/
			mRenderOp2.indexData->indexBuffer = HardwareBufferManager::getSingleton().
				createIndexBuffer(
					HardwareIndexBuffer::IT_16BIT, 
					mRenderOp2.indexData->indexCount, 
					HardwareBuffer::HBU_STATIC_WRITE_ONLY);

			ushort* pIdx = static_cast<ushort*>(
				mRenderOp2.indexData->indexBuffer->lock(
					0, 
					mRenderOp2.indexData->indexBuffer->getSizeInBytes(), 
					HardwareBuffer::HBL_DISCARD) );

			for (int cell = 0; cell < 8; ++cell)
			{
				ushort base = cell * 4;
				*pIdx++ = base;
				*pIdx++ = base + 1;
				*pIdx++ = base + 2;

				*pIdx++ = base + 2;
				*pIdx++ = base + 1;
				*pIdx++ = base + 3;
			}

			mRenderOp2.indexData->indexBuffer->unlock();

			// Create sub-object for rendering border
			mBorderRenderable = new BorderRenderable(this);

			mInitialised = true;
		}
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::addBaseParameters(void)
    {
        PanelOverlayElement::addBaseParameters();
        ParamDictionary* dict = getParamDictionary();

        dict->addParameter(ParameterDef("border_size", 
            "The sizes of the borders relative to the screen size, in the order "
            "left, right, top, bottom."
            , PT_STRING),
            &msCmdBorderSize);
        dict->addParameter(ParameterDef("border_material", 
            "The material to use for the border."
            , PT_STRING),
            &msCmdBorderMaterial);
        dict->addParameter(ParameterDef("border_topleft_uv", 
            "The texture coordinates for the top-left corner border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderTopLeftUV);
        dict->addParameter(ParameterDef("border_topright_uv", 
            "The texture coordinates for the top-right corner border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderTopRightUV);
        dict->addParameter(ParameterDef("border_bottomright_uv", 
            "The texture coordinates for the bottom-right corner border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderBottomRightUV);
        dict->addParameter(ParameterDef("border_bottomleft_uv", 
            "The texture coordinates for the bottom-left corner border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderBottomLeftUV);
        dict->addParameter(ParameterDef("border_left_uv", 
            "The texture coordinates for the left edge border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderLeftUV);
        dict->addParameter(ParameterDef("border_top_uv", 
            "The texture coordinates for the top edge border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderTopUV);
        dict->addParameter(ParameterDef("border_right_uv", 
            "The texture coordinates for the right edge border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderRightUV);
        dict->addParameter(ParameterDef("border_bottom_uv", 
            "The texture coordinates for the bottom edge border texture. 2 sets of uv values, "
            "one for the top-left corner, the other for the bottom-right corner."
            , PT_STRING),
            &msCmdBorderBottomUV);

    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setBorderSize(Real size)
    {
        if (mMetricsMode != GMM_RELATIVE)
        {
            mPixelLeftBorderSize = mPixelRightBorderSize = 
                mPixelTopBorderSize = mPixelBottomBorderSize = size;
        }
        else
        {
            mLeftBorderSize = mRightBorderSize = 
                mTopBorderSize = mBottomBorderSize = size;
        }
        mGeomPositionsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setBorderSize(Real sides, Real topAndBottom)
    {
        if (mMetricsMode != GMM_RELATIVE)
        {
            mPixelLeftBorderSize = mPixelRightBorderSize = sides;
            mPixelTopBorderSize = mPixelBottomBorderSize = topAndBottom;
        }
        else
        {
            mLeftBorderSize = mRightBorderSize = sides;
            mTopBorderSize = mBottomBorderSize = topAndBottom;
        }
        mGeomPositionsOutOfDate = true;


    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setBorderSize(Real left, Real right, Real top, Real bottom)
    {
        if (mMetricsMode != GMM_RELATIVE)
        {
            mPixelLeftBorderSize = left;
            mPixelRightBorderSize = right;
            mPixelTopBorderSize = top;
            mPixelBottomBorderSize = bottom;
        }
        else
        {
            mLeftBorderSize = left;
            mRightBorderSize = right;
            mTopBorderSize = top;
            mBottomBorderSize = bottom;
        }
        mGeomPositionsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    Real BorderPanelOverlayElement::getLeftBorderSize(void) const
    {
        if (mMetricsMode == GMM_PIXELS)
        {
			return mPixelLeftBorderSize;
		}
		else
		{
			return mLeftBorderSize;
		}
    }
    //---------------------------------------------------------------------
    Real BorderPanelOverlayElement::getRightBorderSize(void) const
    {
        if (mMetricsMode == GMM_PIXELS)
        {
			return mPixelRightBorderSize;
		}
		else
		{
			return mRightBorderSize;
		}
    }
    //---------------------------------------------------------------------
    Real BorderPanelOverlayElement::getTopBorderSize(void) const
    {
        if (mMetricsMode == GMM_PIXELS)
        {
			return mPixelTopBorderSize;
		}
		else
		{
			return mTopBorderSize;
		}
    }
    //---------------------------------------------------------------------
    Real BorderPanelOverlayElement::getBottomBorderSize(void) const
    {
        if (mMetricsMode == GMM_PIXELS)
        {
			return mPixelBottomBorderSize;
		}
		else
		{
			return mBottomBorderSize;
		}
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::updateTextureGeometry()
    {
		PanelOverlayElement::updateTextureGeometry();
		/* Each cell is
			0-----2
			|    /|
			|  /  |
			|/    |
			1-----3
		*/
		// No choice but to lock / unlock each time here, but lock only small sections
	    
		HardwareVertexBufferSharedPtr vbuf = 
			mRenderOp2.vertexData->vertexBufferBinding->getBuffer(TEXCOORD_BINDING);
		// Can't use discard since this discards whole buffer
		float* pUV = static_cast<float*>(vbuf->lock(HardwareBuffer::HBL_DISCARD));
		
		for (uint i = 0; i < 8; ++i)
		{
			*pUV++ = mBorderUV[i].u1; *pUV++ = mBorderUV[i].v1;
			*pUV++ = mBorderUV[i].u1; *pUV++ = mBorderUV[i].v2;
			*pUV++ = mBorderUV[i].u2; *pUV++ = mBorderUV[i].v1;
			*pUV++ = mBorderUV[i].u2; *pUV++ = mBorderUV[i].v2;
		}

		vbuf->unlock();
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getCellUVString(BorderCellIndex idx) const
    {
        String ret = StringConverter::toString(mBorderUV[idx].u1) + " " +
		            StringConverter::toString(mBorderUV[idx].v1) + " " +
		            StringConverter::toString(mBorderUV[idx].u2) + " " +
		            StringConverter::toString(mBorderUV[idx].v2);
        return ret;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setLeftBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_LEFT].u1 = u1; 
		mBorderUV[BCELL_LEFT].u2 = u2; 
		mBorderUV[BCELL_LEFT].v1 = v1; 
		mBorderUV[BCELL_LEFT].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setRightBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_RIGHT].u1 = u1; 
		mBorderUV[BCELL_RIGHT].u2 = u2; 
		mBorderUV[BCELL_RIGHT].v1 = v1; 
		mBorderUV[BCELL_RIGHT].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setTopBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_TOP].u1 = u1; 
		mBorderUV[BCELL_TOP].u2 = u2; 
		mBorderUV[BCELL_TOP].v1 = v1; 
		mBorderUV[BCELL_TOP].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setBottomBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_BOTTOM].u1 = u1; 
		mBorderUV[BCELL_BOTTOM].u2 = u2; 
		mBorderUV[BCELL_BOTTOM].v1 = v1; 
		mBorderUV[BCELL_BOTTOM].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setTopLeftBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_TOP_LEFT].u1 = u1; 
		mBorderUV[BCELL_TOP_LEFT].u2 = u2; 
		mBorderUV[BCELL_TOP_LEFT].v1 = v1; 
		mBorderUV[BCELL_TOP_LEFT].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setTopRightBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_TOP_RIGHT].u1 = u1; 
		mBorderUV[BCELL_TOP_RIGHT].u2 = u2; 
		mBorderUV[BCELL_TOP_RIGHT].v1 = v1; 
		mBorderUV[BCELL_TOP_RIGHT].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setBottomLeftBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_BOTTOM_LEFT].u1 = u1; 
		mBorderUV[BCELL_BOTTOM_LEFT].u2 = u2; 
		mBorderUV[BCELL_BOTTOM_LEFT].v1 = v1; 
		mBorderUV[BCELL_BOTTOM_LEFT].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setBottomRightBorderUV(Real u1, Real v1, Real u2, Real v2)
    {
		mBorderUV[BCELL_BOTTOM_RIGHT].u1 = u1; 
		mBorderUV[BCELL_BOTTOM_RIGHT].u2 = u2; 
		mBorderUV[BCELL_BOTTOM_RIGHT].v1 = v1; 
		mBorderUV[BCELL_BOTTOM_RIGHT].v2 = v2; 
		mGeomUVsOutOfDate = true;
    }

    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getLeftBorderUVString() const
    {
        return getCellUVString(BCELL_LEFT);
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getRightBorderUVString() const
    {
        return getCellUVString(BCELL_RIGHT);
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getTopBorderUVString() const
    {
        return getCellUVString(BCELL_TOP);
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getBottomBorderUVString() const
    {
        return getCellUVString(BCELL_BOTTOM);
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getTopLeftBorderUVString() const
    {
        return getCellUVString(BCELL_TOP_LEFT);
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getTopRightBorderUVString() const
    {
        return getCellUVString(BCELL_TOP_RIGHT);
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getBottomLeftBorderUVString() const
    {
        return getCellUVString(BCELL_BOTTOM_LEFT);
    }
    //---------------------------------------------------------------------
    String BorderPanelOverlayElement::getBottomRightBorderUVString() const
    {
        return getCellUVString(BCELL_BOTTOM_RIGHT);
    }





    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::setBorderMaterialName(const String& name)
    {
        mBorderMaterialName = name;
        mpBorderMaterial = MaterialManager::getSingleton().getByName(name);
        if (mpBorderMaterial.isNull())
			OGRE_EXCEPT( Exception::ERR_ITEM_NOT_FOUND, "Could not find material " + name,
				"BorderPanelOverlayElement::setBorderMaterialName" );
        mpBorderMaterial->load();
        // Set some prerequisites to be sure
        mpBorderMaterial->setLightingEnabled(false);
        mpBorderMaterial->setDepthCheckEnabled(false);

    }
    //---------------------------------------------------------------------
    const String& BorderPanelOverlayElement::getBorderMaterialName(void) const
    {
        return mBorderMaterialName;
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::updatePositionGeometry(void)
    {
		/*
		Grid is like this:
		+--+---------------+--+
		|0 |       1       |2 |
		+--+---------------+--+
		|  |               |  |
		|  |               |  |
		|3 |    center     |4 |
		|  |               |  |
		+--+---------------+--+
		|5 |       6       |7 |
		+--+---------------+--+
		*/
		// Convert positions into -1, 1 coordinate space (homogenous clip space)
		// Top / bottom also need inverting since y is upside down
		Real left[8], right[8], top[8], bottom[8];
		// Horizontal
		left[0] = left[3] = left[5] = _getDerivedLeft() * 2 - 1;
		left[1] = left[6] = right[0] = right[3] = right[5] = left[0] + (mLeftBorderSize * 2);
		right[2] = right[4] = right[7] = left[0] + (mWidth * 2);
		left[2] = left[4] = left[7] = right[1] = right[6] = right[2] - (mRightBorderSize * 2);
		// Vertical
		top[0] = top[1] = top[2] = -((_getDerivedTop() * 2) - 1);
		top[3] = top[4] = bottom[0] = bottom[1] = bottom[2] = top[0] - (mTopBorderSize * 2);
		bottom[5] = bottom[6] = bottom[7] = top[0] -  (mHeight * 2);
		top[5] = top[6] = top[7] = bottom[3] = bottom[4] = bottom[5] + (mBottomBorderSize * 2);

		// Lock the whole position buffer in discard mode
		HardwareVertexBufferSharedPtr vbuf = 
			mRenderOp2.vertexData->vertexBufferBinding->getBuffer(POSITION_BINDING);
		float* pPos = static_cast<float*>(
			vbuf->lock(HardwareBuffer::HBL_DISCARD) );
		// Use the furthest away depth value, since materials should have depth-check off
		// This initialised the depth buffer for any 3D objects in front
		Real zValue = Root::getSingleton().getRenderSystem()->getMaximumDepthInputValue();
		for (ushort cell = 0; cell < 8; ++cell)
		{
			/*
				0-----2
				|    /|
				|  /  |
				|/    |
				1-----3
			*/
			*pPos++ = left[cell];
			*pPos++ = top[cell];
			*pPos++ = zValue;

			*pPos++ = left[cell];
			*pPos++ = bottom[cell];
			*pPos++ = zValue;

			*pPos++ = right[cell];
			*pPos++ = top[cell];
			*pPos++ = zValue;

			*pPos++ = right[cell];
			*pPos++ = bottom[cell];
			*pPos++ = zValue;

		}
		vbuf->unlock();

		// Also update center geometry
		// NB don't use superclass because we need to make it smaller because of border
		vbuf = mRenderOp.vertexData->vertexBufferBinding->getBuffer(POSITION_BINDING);
		pPos = static_cast<float*>(
			vbuf->lock(HardwareBuffer::HBL_DISCARD) );
		// Use cell 1 and 3 to determine positions
		*pPos++ = left[1];
		*pPos++ = top[3];
		*pPos++ = zValue;

		*pPos++ = left[1];
		*pPos++ = bottom[3];
		*pPos++ = zValue;

		*pPos++ = right[1];
		*pPos++ = top[3];
		*pPos++ = zValue;

		*pPos++ = right[1];
		*pPos++ = bottom[3];
		*pPos++ = zValue;

		vbuf->unlock();
    }
    //---------------------------------------------------------------------
    void BorderPanelOverlayElement::_updateRenderQueue(RenderQueue* queue)
    {
        // Add self twice to the queue
        // Have to do this to allow 2 materials
        if (mVisible)
        {

            // Add outer
            queue->addRenderable(mBorderRenderable, RENDER_QUEUE_OVERLAY, mZOrder);

			// do inner last so the border artifacts don't overwrite the children
            // Add inner
            PanelOverlayElement::_updateRenderQueue(queue);
        }
    }
    //-----------------------------------------------------------------------
    void BorderPanelOverlayElement::setMetricsMode(GuiMetricsMode gmm)
    {
        PanelOverlayElement::setMetricsMode(gmm);
        if (gmm != GMM_RELATIVE)
        {
            mPixelBottomBorderSize = mBottomBorderSize;
            mPixelLeftBorderSize = mLeftBorderSize;
            mPixelRightBorderSize = mRightBorderSize;
            mPixelTopBorderSize = mTopBorderSize;
        }
    }
    //-----------------------------------------------------------------------
    void BorderPanelOverlayElement::_update(void)
    {
        if (mMetricsMode != GMM_RELATIVE && 
            (OverlayManager::getSingleton().hasViewportChanged() || mGeomPositionsOutOfDate))
        {
            mLeftBorderSize = mPixelLeftBorderSize * mPixelScaleX;
            mRightBorderSize = mPixelRightBorderSize * mPixelScaleX;
            mTopBorderSize = mPixelTopBorderSize * mPixelScaleY;
            mBottomBorderSize = mPixelBottomBorderSize * mPixelScaleY;
            mGeomPositionsOutOfDate = true;
        }
		PanelOverlayElement::_update();
    }
    //-----------------------------------------------------------------------
    //---------------------------------------------------------------------
    //---------------------------------------------------------------------
    // Command objects
    //---------------------------------------------------------------------
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderSize::doGet(const void* target) const
    {
		const BorderPanelOverlayElement* t = static_cast<const BorderPanelOverlayElement*>(target);
        return String(
			StringConverter::toString(t->getLeftBorderSize()) + " " +
			StringConverter::toString(t->getRightBorderSize()) + " " +
			StringConverter::toString(t->getTopBorderSize()) + " " +
			StringConverter::toString(t->getBottomBorderSize())	);
    }
    void BorderPanelOverlayElement::CmdBorderSize::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setBorderSize(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderMaterial::doGet(const void* target) const
    {
        // No need right now..
        return static_cast<const BorderPanelOverlayElement*>(target)->getBorderMaterialName();
    }
    void BorderPanelOverlayElement::CmdBorderMaterial::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setBorderMaterialName(val);
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderBottomLeftUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getBottomLeftBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderBottomLeftUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setBottomLeftBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderBottomRightUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getBottomRightBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderBottomRightUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setBottomRightBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderTopLeftUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getTopLeftBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderTopLeftUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setTopLeftBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderTopRightUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getTopRightBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderTopRightUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setTopRightBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderLeftUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getLeftBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderLeftUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setLeftBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderRightUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getRightBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderRightUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setRightBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderTopUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getTopBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderTopUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setTopBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //-----------------------------------------------------------------------
    String BorderPanelOverlayElement::CmdBorderBottomUV::doGet(const void* target) const
    {
        // No need right now..
		return  static_cast<const BorderPanelOverlayElement*>(target)->getBottomBorderUVString();
    }
    void BorderPanelOverlayElement::CmdBorderBottomUV::doSet(void* target, const String& val)
    {
        std::vector<String> vec = StringUtil::split(val);

        static_cast<BorderPanelOverlayElement*>(target)->setBottomBorderUV(
            StringConverter::parseReal(vec[0]),
            StringConverter::parseReal(vec[1]),
            StringConverter::parseReal(vec[2]),
            StringConverter::parseReal(vec[3])
            );
    }
    //---------------------------------------------------------------------
    const String& BorderPanelOverlayElement::getTypeName(void) const
    {
        return msTypeName;
    }



}

