/*
---------------------------------------------------------------------------
Free Asset Import Library (ASSIMP)
---------------------------------------------------------------------------

Copyright (c) 2006-2008, ASSIMP Development Team

All rights reserved.

Redistribution and use of this software in source and binary forms, 
with or without modification, are permitted provided that the following 
conditions are met:

* Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
  materials provided with the distribution.

* Neither the name of the ASSIMP team, nor the names of its
  contributors may be used to endorse or promote products
  derived from this software without specific prior
  written permission of the ASSIMP Development Team.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------
*/

#include "stdafx.h"
#include "assimp_view.h"

namespace AssimpView {

// Static array to keep custom color values
COLORREF g_aclCustomColors[16] = {0};

// Global registry key
HKEY g_hRegistry = NULL;

// list of previous files (always 5)
std::vector<std::string> g_aPreviousFiles;

// history menu item
HMENU g_hHistoryMenu = NULL;

#define AI_VIEW_NUM_RECENT_FILES 0x8
#define AI_VIEW_RECENT_FILE_ID(_n_) (5678 + _n_)

void UpdateHistory();
void SaveHistory();

//-------------------------------------------------------------------------------
// Setup file associations for all formats supported by the library
//
// File associations are registered in HKCU\Software\Classes. They might
// be overwritten by global file associations.
//-------------------------------------------------------------------------------
void MakeFileAssociations()
	{
	char szTemp2[MAX_PATH];
	char szTemp[MAX_PATH + 10];

	GetModuleFileName(NULL,szTemp2,MAX_PATH);
	sprintf(szTemp,"%s %%1",szTemp2);

	HKEY g_hRegistry;

	// ------------------------------------------------- 
	// .3ds
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.3ds",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .x
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.x",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .obj
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.obj",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .ms3d
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.ms3d",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .md3
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.md3",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .md2
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.md2",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .md4/mdr
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.md4",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.mdr",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .md5
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.md5",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	// ------------------------------------------------- 
	// .mdl
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.mdl",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);


	// ------------------------------------------------- 
	// .ply
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.ply",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);


	// ------------------------------------------------- 
	// .ase/.ask
	// -------------------------------------------------
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.ase",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\.ask",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
	RegCloseKey(g_hRegistry);

	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\ASSIMPVIEW_CLASS",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegCloseKey(g_hRegistry);

	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\ASSIMPVIEW_CLASS\\shell\\open\\command",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	RegSetValueEx(g_hRegistry,"",0,REG_SZ,(const BYTE*)szTemp,(DWORD)strlen(szTemp)+1);
	RegCloseKey(g_hRegistry);

	CLogDisplay::Instance().AddEntry("[OK] File assocations have been registered",
		D3DCOLOR_ARGB(0xFF,0,0xFF,0));

	aiString sz;
	aiGetExtensionList(&sz);
	CLogDisplay::Instance().AddEntry(sz.data,
		D3DCOLOR_ARGB(0xFF,0,0xFF,0));
	return;
	}


//-------------------------------------------------------------------------------
// Handle command line parameters
//
// The function loads an asset specified on the command line as first argument
// Other command line parameters are not handled
//-------------------------------------------------------------------------------
void HandleCommandLine(char* p_szCommand)
	{
	char* sz = p_szCommand;
	//bool bQuak = false;

	if (strlen(sz) < 2)return;

	if (*sz == '\"')
		{
		char* sz2 = strrchr(sz,'\"');
		if (sz2)*sz2 = 0;
		}
	strcpy( g_szFileName, sz );
	LoadAsset();

	// update the history
	UpdateHistory();

	// Save the list of previous files to the registry
	SaveHistory();
	}


//-------------------------------------------------------------------------------
// Load the light colors from the registry
//-------------------------------------------------------------------------------
void LoadLightColors()
{
	DWORD dwTemp = 4;
	RegQueryValueEx(g_hRegistry,"LightColor0",NULL,NULL,
		(BYTE*)&g_avLightColors[0],&dwTemp);
	RegQueryValueEx(g_hRegistry,"LightColor1",NULL,NULL,
		(BYTE*)&g_avLightColors[1],&dwTemp);
	RegQueryValueEx(g_hRegistry,"LightColor2",NULL,NULL,
		(BYTE*)&g_avLightColors[2],&dwTemp);
	return;
}


//-------------------------------------------------------------------------------
// Save the light colors to the registry
//-------------------------------------------------------------------------------
void SaveLightColors()
{
	RegSetValueExA(g_hRegistry,"LightColor0",0,REG_DWORD,(const BYTE*)&g_avLightColors[0],4);
	RegSetValueExA(g_hRegistry,"LightColor1",0,REG_DWORD,(const BYTE*)&g_avLightColors[1],4);
	RegSetValueExA(g_hRegistry,"LightColor2",0,REG_DWORD,(const BYTE*)&g_avLightColors[2],4);
}

//-------------------------------------------------------------------------------
// Toggle the "Display Normals" state
//-------------------------------------------------------------------------------
void ToggleNormals()
{
	g_sOptions.bRenderNormals = !g_sOptions.bRenderNormals; 

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.bRenderNormals)dwValue = 1;
	RegSetValueExA(g_hRegistry,"RenderNormals",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Toggle the "AutoRotate" state
//-------------------------------------------------------------------------------
void ToggleAutoRotate()
{
	g_sOptions.bRotate = !g_sOptions.bRotate; 

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.bRotate)dwValue = 1;
	RegSetValueExA(g_hRegistry,"AutoRotate",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Toggle the "FPS" state
//-------------------------------------------------------------------------------
void ToggleFPSView()
{
	g_bFPSView = !g_bFPSView;
	SetupFPSView();

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_bFPSView)dwValue = 1;
	RegSetValueExA(g_hRegistry,"FPSView",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Toggle the "2 Light sources" state
//-------------------------------------------------------------------------------
void ToggleMultipleLights()
{
	g_sOptions.b3Lights = !g_sOptions.b3Lights; 

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.b3Lights)dwValue = 1;
	RegSetValueExA(g_hRegistry,"MultipleLights",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Toggle the "LightRotate" state
//-------------------------------------------------------------------------------
void ToggleLightRotate()
{
	g_sOptions.bLightRotate = !g_sOptions.bLightRotate; 

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.bLightRotate)dwValue = 1;
	RegSetValueExA(g_hRegistry,"LightRotate",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Toggle the "LowQuality" state
//-------------------------------------------------------------------------------
void ToggleLowQuality()
{
	g_sOptions.bLowQuality = !g_sOptions.bLowQuality; 

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.bLowQuality)dwValue = 1;
	RegSetValueExA(g_hRegistry,"LowQuality",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Toggle the "Specular" state
//-------------------------------------------------------------------------------
void ToggleSpecular()
{
	g_sOptions.bNoSpecular = !g_sOptions.bNoSpecular; 

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.bNoSpecular)dwValue = 1;
	RegSetValueExA(g_hRegistry,"NoSpecular",0,REG_DWORD,(const BYTE*)&dwValue,4);

	// update all specular materials
	CMaterialManager::Instance().UpdateSpecularMaterials();
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Toggle the "RenderMats" state
//-------------------------------------------------------------------------------
void ToggleMats()
{
	g_sOptions.bRenderMats = !g_sOptions.bRenderMats; 

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.bRenderMats)dwValue = 1;
	RegSetValueExA(g_hRegistry,"RenderMats",0,REG_DWORD,(const BYTE*)&dwValue,4);

	// update all specular materials
	CMaterialManager::Instance().UpdateSpecularMaterials();
	UpdateWindow(g_hDlg);
}


//-------------------------------------------------------------------------------
// Toggle the "WireFrame" state
//-------------------------------------------------------------------------------
void ToggleWireFrame()
{
	if (g_sOptions.eDrawMode == RenderOptions::WIREFRAME)
		g_sOptions.eDrawMode = RenderOptions::NORMAL;
	else g_sOptions.eDrawMode = RenderOptions::WIREFRAME;

	// store this in the registry, too
	DWORD dwValue = 0;
	if (RenderOptions::WIREFRAME == g_sOptions.eDrawMode)dwValue = 1;
	RegSetValueExA(g_hRegistry,"Wireframe",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}


//-------------------------------------------------------------------------------
// Toggle the "MultiSample" state
//-------------------------------------------------------------------------------
void ToggleMS()
{
	g_sOptions.bMultiSample = !g_sOptions.bMultiSample; 
	DeleteAssetData();
	ShutdownDevice();
	if (0 == CreateDevice())
	{
		CLogDisplay::Instance().AddEntry(
			"[ERROR] Failed to toggle MultiSampling mode");
		g_sOptions.bMultiSample = !g_sOptions.bMultiSample;
		CreateDevice();
	}
	CreateAssetData();

	if (g_sOptions.bMultiSample)
	{
		CLogDisplay::Instance().AddEntry(
			"[OK] Changed MultiSampling mode to the maximum value for this device");
	}
	else
	{
		CLogDisplay::Instance().AddEntry(
			"[OK] MultiSampling has been disabled");
	}

	// store this in the registry, too
	DWORD dwValue = 0;
	if (g_sOptions.bMultiSample)dwValue = 1;
	RegSetValueExA(g_hRegistry,"MultiSampling",0,REG_DWORD,(const BYTE*)&dwValue,4);
	UpdateWindow(g_hDlg);
}

//-------------------------------------------------------------------------------
// Expand or collapse the UI
//-------------------------------------------------------------------------------
void ToggleUIState()
{
	// adjust the size
	RECT sRect;
	GetWindowRect(g_hDlg,&sRect);
	sRect.right -= sRect.left;
	sRect.bottom -= sRect.top;

	RECT sRect2;
	GetWindowRect(GetDlgItem ( g_hDlg, IDC_BLUBB ),&sRect2);
	sRect2.left -= sRect.left;
	sRect2.top -= sRect.top;

	DWORD dwValue;
	if (BST_UNCHECKED == IsDlgButtonChecked(g_hDlg,IDC_BLUBB))
	{
		SetWindowPos(g_hDlg,NULL,0,0,sRect.right-188,sRect.bottom,
			SWP_NOMOVE | SWP_NOZORDER);

		dwValue = 0;
		SetWindowText(GetDlgItem(g_hDlg,IDC_BLUBB),">>");
		RegSetValueExA(g_hRegistry,"LastUIState",0,REG_DWORD,(const BYTE*)&dwValue,4);
	}
	else
	{
		SetWindowPos(g_hDlg,NULL,0,0,sRect.right+188,sRect.bottom,
			SWP_NOMOVE | SWP_NOZORDER);

		dwValue = 1;
		SetWindowText(GetDlgItem(g_hDlg,IDC_BLUBB),"<<");
		RegSetValueExA(g_hRegistry,"LastUIState",0,REG_DWORD,(const BYTE*)&dwValue,4);
	}
	UpdateWindow(g_hDlg);
	return;
}


//-------------------------------------------------------------------------------
// Load the background texture for the cviewer
//-------------------------------------------------------------------------------
void LoadBGTexture()
{
	char szFileName[MAX_PATH];

	DWORD dwTemp = MAX_PATH;
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"TextureSrc",NULL,NULL,
		(BYTE*)szFileName,&dwTemp))
	{
		// Key was not found. Use C:
		strcpy(szFileName,"");
	}
	else
	{
		// need to remove the file name
		char* sz = strrchr(szFileName,'\\');
		if (!sz)sz = strrchr(szFileName,'/');
		if (!sz)*sz = 0;
	}
	OPENFILENAME sFilename1 = {
		sizeof(OPENFILENAME),
		g_hDlg,GetModuleHandle(NULL), 
		"Textures\0*.png;*.dds;*.tga;*.bmp;*.tif;*.ppm;*.ppx;*.jpg;*.jpeg;*.exr\0*.*\0", 
		NULL, 0, 1, 
		szFileName, MAX_PATH, NULL, 0, NULL, 
		"Open texture as background",
		OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR, 
		0, 1, ".jpg", 0, NULL, NULL
	};
	if(GetOpenFileName(&sFilename1) == 0) return;

	// Now store the file in the registry
	RegSetValueExA(g_hRegistry,"TextureSrc",0,REG_SZ,(const BYTE*)szFileName,MAX_PATH);
	RegSetValueExA(g_hRegistry,"LastTextureSrc",0,REG_SZ,(const BYTE*)szFileName,MAX_PATH);
	RegSetValueExA(g_hRegistry,"LastSkyBoxSrc",0,REG_SZ,(const BYTE*)"",MAX_PATH);

	CBackgroundPainter::Instance().SetTextureBG(szFileName);
	return;
}

//-------------------------------------------------------------------------------
// Reset the background color to a smart and nice grey
//-------------------------------------------------------------------------------
void ClearBG()
{
	D3DCOLOR clrColor = D3DCOLOR_ARGB(0xFF,100,100,100);
	CBackgroundPainter::Instance().SetColor(clrColor);

	RegSetValueExA(g_hRegistry,"LastSkyBoxSrc",0,REG_SZ,(const BYTE*)"",MAX_PATH);
	RegSetValueExA(g_hRegistry,"LastTextureSrc",0,REG_SZ,(const BYTE*)"",MAX_PATH);

	RegSetValueExA(g_hRegistry,"Color",0,REG_DWORD,(const BYTE*)&clrColor,4);
	return;
}

//-------------------------------------------------------------------------------
// Let the user choose a color in a windows standard color dialog
//-------------------------------------------------------------------------------
void DisplayColorDialog(D3DCOLOR* pclrResult)
{
	CHOOSECOLOR clr;
	clr.lStructSize = sizeof(CHOOSECOLOR);
	clr.hwndOwner = g_hDlg;
	clr.Flags = CC_RGBINIT | CC_FULLOPEN;
	clr.rgbResult = RGB(100,100,100);
	clr.lpCustColors = g_aclCustomColors;
	clr.lpfnHook = NULL;
	clr.lpTemplateName = NULL;
	clr.lCustData = NULL;

	ChooseColor(&clr);

	*pclrResult = D3DCOLOR_ARGB(0xFF,
		GetRValue(clr.rgbResult),
		GetGValue(clr.rgbResult),
		GetBValue(clr.rgbResult));
	return;
}

//-------------------------------------------------------------------------------
// Let the user choose the baclground color for the viewer
//-------------------------------------------------------------------------------
void ChooseBGColor()
{
	RegSetValueExA(g_hRegistry,"LastSkyBoxSrc",0,REG_SZ,(const BYTE*)"",MAX_PATH);
	RegSetValueExA(g_hRegistry,"LastTextureSrc",0,REG_SZ,(const BYTE*)"",MAX_PATH);

	D3DCOLOR clrColor;
	DisplayColorDialog(&clrColor);
	CBackgroundPainter::Instance().SetColor(clrColor);

	RegSetValueExA(g_hRegistry,"Color",0,REG_DWORD,(const BYTE*)&clrColor,4);
	return;
}

//-------------------------------------------------------------------------------
// Display the OpenFile dialog and let the user choose a new slybox as bg
//-------------------------------------------------------------------------------
void LoadSkybox()
{
	char szFileName[MAX_PATH];

	DWORD dwTemp = MAX_PATH;
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"SkyBoxSrc",NULL,NULL,
		(BYTE*)szFileName,&dwTemp))
	{
		// Key was not found. Use C:
		strcpy(szFileName,"");
	}
	else
	{
		// need to remove the file name
		char* sz = strrchr(szFileName,'\\');
		if (!sz)sz = strrchr(szFileName,'/');
		if (!sz)*sz = 0;
	}
	OPENFILENAME sFilename1 = {
		sizeof(OPENFILENAME),
		g_hDlg,GetModuleHandle(NULL), 
		"Skyboxes\0*.dds\0*.*\0", NULL, 0, 1, 
		szFileName, MAX_PATH, NULL, 0, NULL, 
		"Open skybox as background",
		OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR, 
		0, 1, ".dds", 0, NULL, NULL
	};
	if(GetOpenFileName(&sFilename1) == 0) return;

	// Now store the file in the registry
	RegSetValueExA(g_hRegistry,"SkyBoxSrc",0,REG_SZ,(const BYTE*)szFileName,MAX_PATH);
	RegSetValueExA(g_hRegistry,"LastSkyBoxSrc",0,REG_SZ,(const BYTE*)szFileName,MAX_PATH);
	RegSetValueExA(g_hRegistry,"LastTextureSrc",0,REG_SZ,(const BYTE*)"",MAX_PATH);

	CBackgroundPainter::Instance().SetCubeMapBG(szFileName);
	return;
}


//-------------------------------------------------------------------------------
// Sace a screenshot to an user-defined file
//-------------------------------------------------------------------------------
void SaveScreenshot()
{
	char szFileName[MAX_PATH];

	DWORD dwTemp = MAX_PATH;
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"ScreenShot",NULL,NULL,
		(BYTE*)szFileName,&dwTemp))
	{
		// Key was not found. Use C:
		strcpy(szFileName,"");
	}
	else
	{
		// need to remove the file name
		char* sz = strrchr(szFileName,'\\');
		if (!sz)sz = strrchr(szFileName,'/');
		if (!sz)*sz = 0;
	}
	OPENFILENAME sFilename1 = {
		sizeof(OPENFILENAME),
		g_hDlg,GetModuleHandle(NULL), 
		"PNG Images\0*.png", NULL, 0, 1, 
		szFileName, MAX_PATH, NULL, 0, NULL, 
		"Save Screenshot to file",
		OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR, 
		0, 1, ".png", 0, NULL, NULL
	};
	if(GetSaveFileName(&sFilename1) == 0) return;

	// Now store the file in the registry
	RegSetValueExA(g_hRegistry,"ScreenShot",0,REG_SZ,(const BYTE*)szFileName,MAX_PATH);

	IDirect3DSurface9* pi = NULL;
	g_piDevice->GetRenderTarget(0,&pi);
	if(!pi || FAILED(D3DXSaveSurfaceToFile(szFileName,D3DXIFF_PNG,pi,NULL,NULL)))
	{
		CLogDisplay::Instance().AddEntry("[ERROR] Unable to save screenshot",
			D3DCOLOR_ARGB(0xFF,0xFF,0,0));
	}
	else
	{
		CLogDisplay::Instance().AddEntry("[INFO] The screenshot has been saved",
			D3DCOLOR_ARGB(0xFF,0xFF,0xFF,0));
	}
	if(pi)pi->Release();
	return;
}

//-------------------------------------------------------------------------------
// Get the amount of memory required for textures
//-------------------------------------------------------------------------------
void AddTextureMem(IDirect3DTexture9* pcTex, unsigned int& out)
{
	if (!pcTex)return;

	D3DSURFACE_DESC sDesc;
	pcTex->GetLevelDesc(0,&sDesc);

	out += (sDesc.Width * sDesc.Height) << 2;
	return;
}

//-------------------------------------------------------------------------------
// Display memory statistics
//-------------------------------------------------------------------------------
void DisplayMemoryConsumption()
{
	// first get the memory consumption for the aiScene
	if (! g_pcAsset ||!g_pcAsset->pcScene)
	{
		MessageBox(g_hDlg,"No asset is loaded. Can you guess how much memory I need to store nothing?",
			"Memory consumption",MB_OK);
		return;
	}
	unsigned int iScene = sizeof(aiScene);
	for (unsigned int i = 0; i < g_pcAsset->pcScene->mNumMeshes;++i)
	{
		iScene += sizeof(aiMesh);
		if (g_pcAsset->pcScene->mMeshes[i]->HasPositions())
			iScene += sizeof(aiVector3D) * g_pcAsset->pcScene->mMeshes[i]->mNumVertices;

		if (g_pcAsset->pcScene->mMeshes[i]->HasNormals())
			iScene += sizeof(aiVector3D) * g_pcAsset->pcScene->mMeshes[i]->mNumVertices;

		if (g_pcAsset->pcScene->mMeshes[i]->HasTangentsAndBitangents())
			iScene += sizeof(aiVector3D) * g_pcAsset->pcScene->mMeshes[i]->mNumVertices * 2;

		for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS;++a)
		{
			if (g_pcAsset->pcScene->mMeshes[i]->HasVertexColors(a))
				iScene += sizeof(aiColor4D) * g_pcAsset->pcScene->mMeshes[i]->mNumVertices;
			else break;
		}
		for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS;++a)
		{
			if (g_pcAsset->pcScene->mMeshes[i]->HasTextureCoords(a))
				iScene += sizeof(aiVector3D) * g_pcAsset->pcScene->mMeshes[i]->mNumVertices;
			else break;
		}
		if (g_pcAsset->pcScene->mMeshes[i]->HasBones())
		{
			for (unsigned int p = 0; p < g_pcAsset->pcScene->mMeshes[i]->mNumBones;++p)
			{
				iScene += sizeof(aiBone);
				iScene += g_pcAsset->pcScene->mMeshes[i]->mBones[p]->mNumWeights * sizeof(aiVertexWeight);
			}
		}
		iScene += (sizeof(aiFace) + 3 * sizeof(unsigned int))*g_pcAsset->pcScene->mMeshes[i]->mNumFaces;
	}
	// add all embedded textures
	for (unsigned int i = 0; i < g_pcAsset->pcScene->mNumTextures;++i)
	{
		const aiTexture* pc = g_pcAsset->pcScene->mTextures[i];
		if (0 != pc->mHeight)
		{
			iScene += 4 * pc->mHeight * pc->mWidth;
		}
		else iScene += pc->mWidth;
	}
	// add 30k for each material ... a string has 4k for example
	iScene += g_pcAsset->pcScene->mNumMaterials * 30 * 1024;

	// now get the memory consumption required by D3D, first all textures
	unsigned int iTexture = 0;
	for (unsigned int i = 0; i < g_pcAsset->pcScene->mNumMeshes;++i)
	{
		AssetHelper::MeshHelper* pc = g_pcAsset->apcMeshes[i];

		AddTextureMem(pc->piDiffuseTexture,iTexture);
		AddTextureMem(pc->piSpecularTexture,iTexture);
		AddTextureMem(pc->piAmbientTexture,iTexture);
		AddTextureMem(pc->piEmissiveTexture,iTexture);
		AddTextureMem(pc->piOpacityTexture,iTexture);
		AddTextureMem(pc->piNormalTexture,iTexture);
		AddTextureMem(pc->piShininessTexture,iTexture);
	}
	unsigned int iVRAM = iTexture;

	// now get the memory consumption of all vertex/index buffers
	unsigned int iVB = 0;
	unsigned int iIB = 0;
	for (unsigned int i = 0; i < g_pcAsset->pcScene->mNumMeshes;++i)
	{
		AssetHelper:: MeshHelper* pc = g_pcAsset->apcMeshes[i];

		union{
		D3DVERTEXBUFFER_DESC sDesc;
		D3DINDEXBUFFER_DESC sDesc2;
		};

		if (pc->piVB)
		{
			pc->piVB->GetDesc(&sDesc);
			iVB += sDesc.Size;
		}
		if (pc->piVBNormals)
		{
			pc->piVBNormals->GetDesc(&sDesc);
			iVB += sDesc.Size;
		}
		if (pc->piIB)
		{
			pc->piIB->GetDesc(&sDesc2);
			iIB += sDesc2.Size;
		}
	}
	iVRAM += iVB + iIB;
	// add the memory for the back buffer and depth stencil buffer
	RECT sRect;
	GetWindowRect(GetDlgItem(g_hDlg,IDC_RT),&sRect);
	sRect.bottom -= sRect.top;
	sRect.right -= sRect.left;
	iVRAM += sRect.bottom * sRect.right * 8;

	char szOut[2048];
	sprintf(szOut,
		"(1 KB = 1024 Byte)\n\n"
		"ASSIMP Import Data: \t%i KB\n"
		"Texture data:\t\t%i KB\n"
		"Vertex buffers:\t\t%i KB\n"
		"Index buffers:\t\t%i KB\n"
		"Video Memory:\t\t%i KB\n\n"
		"Total: \t\t\t%i KB",
		iScene / 1024,iTexture / 1024,iVB / 1024,iIB / 1024,iVRAM / 1024,
		(iScene + iTexture + iVB + iIB + iVRAM) / 1024);
	MessageBox(g_hDlg,szOut,"Memory consumption",MB_OK);
	return;
}

//-------------------------------------------------------------------------------
// Save the list of recent files to the registry
//-------------------------------------------------------------------------------
void SaveHistory()
{
	for (unsigned int i = 0; i < AI_VIEW_NUM_RECENT_FILES;++i)
	{
		char szName[66];
		sprintf(szName,"Recent%i",i+1);

		RegSetValueEx(g_hRegistry,szName,0,REG_SZ,
			(const BYTE*)g_aPreviousFiles[i].c_str(),(DWORD)g_aPreviousFiles[i].length());
	}
	return;
}

//-------------------------------------------------------------------------------
// Recover the file history
//-------------------------------------------------------------------------------
void LoadHistory()
{
	g_aPreviousFiles.resize(AI_VIEW_NUM_RECENT_FILES);

	char szFileName[MAX_PATH];

	for (unsigned int i = 0; i < AI_VIEW_NUM_RECENT_FILES;++i)
	{
		char szName[66];
		sprintf(szName,"Recent%i",i+1);

		DWORD dwTemp = MAX_PATH;

		szFileName[0] ='\0';
		if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,szName,NULL,NULL,
			(BYTE*)szFileName,&dwTemp))
		{
			g_aPreviousFiles[i] = std::string(szFileName);
		}
	}

	// add sub items for all recent files
	g_hHistoryMenu = CreateMenu();
	for (int i = AI_VIEW_NUM_RECENT_FILES-1; i >= 0;--i)
	{
		const char* szText = g_aPreviousFiles[i].c_str();
		UINT iFlags = 0;
		if ('\0' == *szText)
		{
			szText = "<empty>";
			iFlags = MF_GRAYED | MF_DISABLED;
		}
		AppendMenu(g_hHistoryMenu,MF_STRING | iFlags,AI_VIEW_RECENT_FILE_ID(i),szText);
	}

	ModifyMenu(GetMenu(g_hDlg),ID_VIEWER_RECENTFILES,MF_BYCOMMAND | MF_POPUP,
		(UINT_PTR)g_hHistoryMenu,"Recent files");
	return;
}

//-------------------------------------------------------------------------------
// Clear the file history
//-------------------------------------------------------------------------------
void ClearHistory()
{ 
	for(unsigned int i = 0; i < AI_VIEW_NUM_RECENT_FILES;++i)
		g_aPreviousFiles[i] = std::string("");

	for (int i = AI_VIEW_NUM_RECENT_FILES-1; i >= 0;--i)
	{
		ModifyMenu(g_hHistoryMenu,AI_VIEW_RECENT_FILE_ID(i),
			MF_STRING | MF_BYCOMMAND | MF_GRAYED | MF_DISABLED,AI_VIEW_RECENT_FILE_ID(i),"<empty>");
	}

	SaveHistory();
}

//-------------------------------------------------------------------------------
// Update the file history
//-------------------------------------------------------------------------------
void UpdateHistory()
{
	if(!g_hHistoryMenu)return;

	std::string sz = std::string(g_szFileName);
	if (g_aPreviousFiles[AI_VIEW_NUM_RECENT_FILES-1] == sz)return;

	// add the new asset to the list of recent files
	for (unsigned int i = 0; i < AI_VIEW_NUM_RECENT_FILES-1;++i)
	{
		g_aPreviousFiles[i] = g_aPreviousFiles[i+1];
	}
	g_aPreviousFiles[AI_VIEW_NUM_RECENT_FILES-1] = sz;
	for (int i = AI_VIEW_NUM_RECENT_FILES-1; i >= 0;--i)
	{
		const char* szText = g_aPreviousFiles[i].c_str();
		UINT iFlags = 0;
		if ('\0' == *szText)
		{
			szText = "<empty>";
			iFlags = MF_GRAYED | MF_DISABLED;
		}
		ModifyMenu(g_hHistoryMenu,AI_VIEW_RECENT_FILE_ID(i),
			MF_STRING | MF_BYCOMMAND | iFlags,AI_VIEW_RECENT_FILE_ID(i),szText);
	}
	return;
}

//-------------------------------------------------------------------------------
// Open a new asset
//-------------------------------------------------------------------------------
void OpenAsset()
{
	char szFileName[MAX_PATH];

	DWORD dwTemp = MAX_PATH;
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"CurrentApp",NULL,NULL,
		(BYTE*)szFileName,&dwTemp))
	{
		// Key was not found. Use C:
		strcpy(szFileName,"");
	}
	else
	{
		// need to remove the file name
		char* sz = strrchr(szFileName,'\\');
		if (!sz)sz = strrchr(szFileName,'/');
		if (!sz)*sz = 0;
	}

	// get a list of all file extensions supported by ASSIMP
	aiString sz;
	aiGetExtensionList(&sz);

	char szList[MAXLEN + 100];
	strcpy(szList,"ASSIMP assets");
	char* szCur = szList + 14;
	strcpy(szCur,sz.data);
	szCur += sz.length+1;
	strcpy(szCur,"All files");
	szCur += 10;
	strcpy(szCur,"*.*");
	szCur[4] = 0;

	OPENFILENAME sFilename1 = {
		sizeof(OPENFILENAME),
		g_hDlg,GetModuleHandle(NULL), szList, NULL, 0, 1, 
		szFileName, MAX_PATH, NULL, 0, NULL, 
		"Import Asset into ASSIMP",
		OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR, 
		0, 1, ".x", 0, NULL, NULL
	};
	if(GetOpenFileName(&sFilename1) == 0) return;

	// Now store the file in the registry
	RegSetValueExA(g_hRegistry,"CurrentApp",0,REG_SZ,(const BYTE*)szFileName,MAX_PATH);

	if (0 != strcmp(g_szFileName,szFileName))
	{
		strcpy(g_szFileName, szFileName);
		DeleteAssetData();
		DeleteAsset();
		LoadAsset();

		// update the history
		UpdateHistory();

		// Save the list of previous files to the registry
		SaveHistory();
	}
	return;
}

//-------------------------------------------------------------------------------
// Initialize the user interface
//-------------------------------------------------------------------------------
void InitUI()
{
	SetDlgItemText(g_hDlg,IDC_EVERT,"0");
	SetDlgItemText(g_hDlg,IDC_EFACE,"0");
	SetDlgItemText(g_hDlg,IDC_EMAT,"0");
	SetDlgItemText(g_hDlg,IDC_ESHADER,"0");
	SetDlgItemText(g_hDlg,IDC_ENODE,"0");
	SetDlgItemText(g_hDlg,IDC_ETEX,"0");
	SetDlgItemText(g_hDlg,IDC_EMESH,"0");

	// setup the default window title
	SetWindowText(g_hDlg,AI_VIEW_CAPTION_BASE);

	// read some UI properties from the registry and apply them
	DWORD dwValue;
	DWORD dwTemp = sizeof( DWORD );

	// store the key in a global variable for later use
	RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\ASSIMP\\Viewer",
		NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);

	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LastUIState",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))
	{
		dwValue = 1;
	}
	if (0 == dwValue)
	{
		// collapse the viewer
		// adjust the size
		RECT sRect;
		GetWindowRect(g_hDlg,&sRect);
		sRect.right -= sRect.left;
		sRect.bottom -= sRect.top;

		RECT sRect2;
		GetWindowRect(GetDlgItem ( g_hDlg, IDC_BLUBB ),&sRect2);
		sRect2.left -= sRect.left;
		sRect2.top -= sRect.top;

		SetWindowPos(g_hDlg,NULL,0,0,sRect.right-188,sRect.bottom,
			SWP_NOMOVE | SWP_NOZORDER);
		SetWindowText(GetDlgItem(g_hDlg,IDC_BLUBB),">>");
	}
	else
	{
		CheckDlgButton(g_hDlg,IDC_BLUBB,BST_CHECKED);
	}

	// AutoRotate
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"AutoRotate",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_sOptions.bRotate = false;
		CheckDlgButton(g_hDlg,IDC_AUTOROTATE,BST_UNCHECKED);
	}
	else
	{
		g_sOptions.bRotate = true;
		CheckDlgButton(g_hDlg,IDC_AUTOROTATE,BST_CHECKED);
	}

	// MultipleLights
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"MultipleLights",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_sOptions.b3Lights = false;
		CheckDlgButton(g_hDlg,IDC_3LIGHTS,BST_UNCHECKED);
	}
	else 
	{
		g_sOptions.b3Lights = true;
		CheckDlgButton(g_hDlg,IDC_3LIGHTS,BST_CHECKED);
	}

	// Light rotate
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LightRotate",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_sOptions.bLightRotate = false;
		CheckDlgButton(g_hDlg,IDC_LIGHTROTATE,BST_UNCHECKED);
	}
	else 
	{
		g_sOptions.bLightRotate = true;
		CheckDlgButton(g_hDlg,IDC_LIGHTROTATE,BST_CHECKED);
	}

	// NoSpecular
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"NoSpecular",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_sOptions.bNoSpecular = false;
		CheckDlgButton(g_hDlg,IDC_NOSPECULAR,BST_UNCHECKED);
	}
	else 
	{
		g_sOptions.bNoSpecular = true;
		CheckDlgButton(g_hDlg,IDC_NOSPECULAR,BST_CHECKED);
	}

	// LowQuality
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LowQuality",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_sOptions.bLowQuality = false;
		CheckDlgButton(g_hDlg,IDC_LOWQUALITY,BST_UNCHECKED);
	}
	else 
	{
		g_sOptions.bLowQuality = true;
		CheckDlgButton(g_hDlg,IDC_LOWQUALITY,BST_CHECKED);
	}

	// DisplayNormals
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"RenderNormals",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_sOptions.bRenderNormals = false;
		CheckDlgButton(g_hDlg,IDC_TOGGLENORMALS,BST_UNCHECKED);
	}
	else 
	{
		g_sOptions.bRenderNormals = true;
		CheckDlgButton(g_hDlg,IDC_TOGGLENORMALS,BST_CHECKED);
	}

	// NoMaterials
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"RenderMats",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 1;
	if (0 == dwValue)
	{
		g_sOptions.bRenderMats = false;
		CheckDlgButton(g_hDlg,IDC_TOGGLEMAT,BST_CHECKED);
	}
	else 
	{
		g_sOptions.bRenderMats = true;
		CheckDlgButton(g_hDlg,IDC_TOGGLEMAT,BST_UNCHECKED);
	}

	// MultiSampling
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"MultiSampling",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 1;
	if (0 == dwValue)
	{
		g_sOptions.bMultiSample = false;
		CheckDlgButton(g_hDlg,IDC_TOGGLEMS,BST_UNCHECKED);
	}
	else 
	{
		g_sOptions.bMultiSample = true;
		CheckDlgButton(g_hDlg,IDC_TOGGLEMS,BST_CHECKED);
	}

	// FPS Mode
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"FPSView",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_bFPSView = false;
		CheckDlgButton(g_hDlg,IDC_ZOOM,BST_CHECKED);
	}
	else 
	{
		g_bFPSView = true;
		CheckDlgButton(g_hDlg,IDC_ZOOM,BST_UNCHECKED);
	}

	// WireFrame
	if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"Wireframe",NULL,NULL,
		(BYTE*)&dwValue,&dwTemp))dwValue = 0;
	if (0 == dwValue)
	{
		g_sOptions.eDrawMode = RenderOptions::NORMAL;
		CheckDlgButton(g_hDlg,IDC_TOGGLEWIRE,BST_UNCHECKED);
	}
	else 
	{
		g_sOptions.eDrawMode = RenderOptions::WIREFRAME;
		CheckDlgButton(g_hDlg,IDC_TOGGLEWIRE,BST_CHECKED);
	}
	return;
}

//-------------------------------------------------------------------------------
// Main message procedure of the application
//
// The function handles all incoming messages for the main window.
// However, if does not directly process input commands. 
// NOTE: Due to the impossibility to process WM_CHAR messages in dialogs
// properly the code for all hotkeys has been moved to the WndMain
//-------------------------------------------------------------------------------
INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg,
	WPARAM wParam,LPARAM lParam)
	{
	UNREFERENCED_PARAMETER(lParam);
	UNREFERENCED_PARAMETER(wParam);

	int xPos,yPos;
	int xPos2,yPos2;
	int fHalfX;
	int fHalfY;

	TRACKMOUSEEVENT sEvent;
	switch (uMsg)
		{
		case WM_INITDIALOG:

			g_hDlg = hwndDlg;

			// load the state of the usr interface
			InitUI();

			// load the file history
			LoadHistory();

			// load the current color of the lights
			LoadLightColors();
			return TRUE;

		case WM_MOUSEWHEEL:

			if (CDisplay::VIEWMODE_TEXTURE == CDisplay::Instance().GetViewMode())
			{
				CDisplay::Instance().SetTextureViewZoom ( GET_WHEEL_DELTA_WPARAM(wParam) / 50.0f );
			}
			else
			{
				if (!g_bFPSView)
					{
					g_sCamera.vPos.z += GET_WHEEL_DELTA_WPARAM(wParam) / 50.0f;
					}
				else
					{
					g_sCamera.vPos += (GET_WHEEL_DELTA_WPARAM(wParam) / 50.0f) *
						g_sCamera.vLookAt.Normalize();
					}
			}
			return TRUE;

		case WM_MOUSELEAVE:

			g_bMousePressed = false;
			g_bMousePressedR = false;
			g_bMousePressedM = false;
			g_bMousePressedBoth = false;
			return TRUE;

		case WM_LBUTTONDBLCLK:

			CheckDlgButton(hwndDlg,IDC_AUTOROTATE,
				IsDlgButtonChecked(hwndDlg,IDC_AUTOROTATE) == BST_CHECKED 
				? BST_UNCHECKED : BST_CHECKED);

			ToggleAutoRotate();
			return TRUE;


		case WM_CLOSE:
			PostQuitMessage(0);
			DestroyWindow(hwndDlg);
			return TRUE;

		case WM_NOTIFY:

			if (IDC_TREE1 == wParam)
			{
				NMTREEVIEW* pnmtv = (LPNMTREEVIEW) lParam;

				if (TVN_SELCHANGED == pnmtv->hdr.code)
					CDisplay::Instance().OnSetup( pnmtv->itemNew.hItem );
				else if (NM_RCLICK == pnmtv->hdr.code)
				{
					// determine in which item the click was ...
					POINT sPoint;
					GetCursorPos(&sPoint);
					ScreenToClient(GetDlgItem(g_hDlg,IDC_TREE1),&sPoint);

					TVHITTESTINFO sHit;
					sHit.pt = sPoint;
					TreeView_HitTest(GetDlgItem(g_hDlg,IDC_TREE1),&sHit);
					CDisplay::Instance().ShowTreeViewContextMenu(sHit.hItem);
				}
			}
			return TRUE;

		case WM_DRAWITEM:
			{
				// draw the two light colors
				DRAWITEMSTRUCT* pcStruct = (DRAWITEMSTRUCT*)lParam;

				RECT sRect;
				GetWindowRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),&sRect);
				sRect.right -= sRect.left;
				sRect.bottom -= sRect.top;
				sRect.left = sRect.top = 0;

				bool bDraw = false;

				if(IDC_LCOLOR1 == pcStruct->CtlID)
				{
					unsigned char r = (unsigned char)((g_avLightColors[0] >> 16) & 0xFF);
					unsigned char g = (unsigned char)((g_avLightColors[0] >> 8) & 0xFF);
					unsigned char b = (unsigned char)((g_avLightColors[0]) & 0xFF);
					HBRUSH hbr = CreateSolidBrush(RGB(r,g,b));

					FillRect(pcStruct->hDC,&sRect,hbr);
					

					SetTextColor(pcStruct->hDC,RGB(0xFF-r,0xFF-g,0xFF-b));
					SetBkMode(pcStruct->hDC,TRANSPARENT);
					TextOut(pcStruct->hDC,4,1,"L0",2);
					bDraw = true;
				}
				else if(IDC_LCOLOR2 == pcStruct->CtlID)
				{
					unsigned char r = (unsigned char)((g_avLightColors[1] >> 16) & 0xFF);
					unsigned char g = (unsigned char)((g_avLightColors[1] >> 8) & 0xFF);
					unsigned char b = (unsigned char)((g_avLightColors[1]) & 0xFF);
					HBRUSH hbr = CreateSolidBrush(RGB(r,g,b));
					FillRect(pcStruct->hDC,&sRect,hbr);

					SetTextColor(pcStruct->hDC,RGB(0xFF-r,0xFF-g,0xFF-b));
					SetBkMode(pcStruct->hDC,TRANSPARENT);
					TextOut(pcStruct->hDC,4,1,"L1",2);
					bDraw = true;
				}
				else if(IDC_LCOLOR3 == pcStruct->CtlID)
				{
					unsigned char r = (unsigned char)((g_avLightColors[2] >> 16) & 0xFF);
					unsigned char g = (unsigned char)((g_avLightColors[2] >> 8) & 0xFF);
					unsigned char b = (unsigned char)((g_avLightColors[2]) & 0xFF);
					HBRUSH hbr = CreateSolidBrush(RGB(r,g,b));

					FillRect(pcStruct->hDC,&sRect,hbr);
				
					SetTextColor(pcStruct->hDC,RGB(0xFF-r,0xFF-g,0xFF-b));
					SetBkMode(pcStruct->hDC,TRANSPARENT);
					TextOut(pcStruct->hDC,4,1,"A0",2);
					bDraw = true;
				}
				// draw the black border around the rects
				if (bDraw)
				{
					SetBkColor(pcStruct->hDC,RGB(0,0,0));
					MoveToEx(pcStruct->hDC,0,0,NULL);
					LineTo(pcStruct->hDC,sRect.right-1,0);
					LineTo(pcStruct->hDC,sRect.right-1,sRect.bottom-1);
					LineTo(pcStruct->hDC,0,sRect.bottom-1);
					LineTo(pcStruct->hDC,0,0);
				}
			}
			return TRUE;

		case WM_DESTROY:

			// close the open registry key
			RegCloseKey(g_hRegistry);
			return TRUE;

		case WM_LBUTTONDOWN:
			g_bMousePressed = true;

			// register a mouse track handler to be sure we'll know
			// when the mouse leaves the display view again
			sEvent.cbSize = sizeof(TRACKMOUSEEVENT);
			sEvent.dwFlags = TME_LEAVE;
			sEvent.hwndTrack = g_hDlg;
			sEvent.dwHoverTime = HOVER_DEFAULT;
			TrackMouseEvent(&sEvent);

			if (g_bMousePressedR)
				{
				g_bMousePressed = false;
				g_bMousePressedR = false;
				g_bMousePressedBoth = true;
				return TRUE;
				}

			// need to determine the position of the mouse and the 
			// distance from the center
			//xPos = (int)(short)LOWORD(lParam); 
			//yPos = (int)(short)HIWORD(lParam); 

			POINT sPoint;
			GetCursorPos(&sPoint);
			ScreenToClient(GetDlgItem(g_hDlg,IDC_RT),&sPoint);
			xPos = xPos2 = sPoint.x;
			yPos = yPos2 = sPoint.y;

		/*	xPos -= 10;
			yPos -= 10;
			xPos2 = xPos-3;
			yPos2 = yPos-5;*/

			RECT sRect;
			GetWindowRect(GetDlgItem(g_hDlg,IDC_RT),&sRect);
			sRect.right -= sRect.left;
			sRect.bottom -= sRect.top;

			// if the mouse klick was inside the viewer panel
			// give the focus to it
			if (xPos > 0 && xPos < sRect.right && yPos > 0 && yPos < sRect.bottom)
				{
				SetFocus(GetDlgItem(g_hDlg,IDC_RT));
				}

			// g_bInvert stores whether the mouse has started on the negative
			// x or on the positive x axis of the imaginary coordinate system
			// with origin p at the center of the HUD texture
			xPos -= sRect.right/2;
			yPos -= sRect.bottom/2;

			if (xPos > 0)g_bInvert = true;
			else g_bInvert = false;

			D3DSURFACE_DESC sDesc;
			g_pcTexture->GetLevelDesc(0,&sDesc);
	
			fHalfX = (int)(((float)sRect.right-(float)sDesc.Width) / 2.0f);
			fHalfY = (int)(((float)sRect.bottom-(float)sDesc.Height) / 2.0f);

			// Determine the input operation to perform for this position
			g_eClick = EClickPos_Outside;
 			if (xPos2 >= fHalfX && xPos2 < fHalfX + (int)sDesc.Width &&
				yPos2 >= fHalfY && yPos2 < fHalfY + (int)sDesc.Height &&
				NULL != g_szImageMask)
				{
				// inside the texture. Lookup the grayscale value from it
				xPos2 -= fHalfX;
				yPos2 -= fHalfY;

				unsigned char chValue = g_szImageMask[xPos2 + yPos2 * sDesc.Width];
				if (chValue > 0xFF-20)
					{
					g_eClick = EClickPos_Circle;
					}
				else if (chValue < 0xFF-20 && chValue > 185)
					{
					g_eClick = EClickPos_CircleHor;
					}
				else if (chValue > 0x10 && chValue < 185)
					{
					g_eClick = EClickPos_CircleVert;
					}
				}
			return TRUE;

		case WM_RBUTTONDOWN:
			g_bMousePressedR = true;

			sEvent.cbSize = sizeof(TRACKMOUSEEVENT);
			sEvent.dwFlags = TME_LEAVE;
			sEvent.hwndTrack = g_hDlg;
			sEvent.dwHoverTime = HOVER_DEFAULT;
			TrackMouseEvent(&sEvent);

			if (g_bMousePressed)
				{
				g_bMousePressedR = false;
				g_bMousePressed = false;
				g_bMousePressedBoth = true;
				}

			return TRUE;

		case WM_MBUTTONDOWN:

			
			g_bMousePressedM = true;

			sEvent.cbSize = sizeof(TRACKMOUSEEVENT);
			sEvent.dwFlags = TME_LEAVE;
			sEvent.hwndTrack = g_hDlg;
			sEvent.dwHoverTime = HOVER_DEFAULT;
			TrackMouseEvent(&sEvent);
			return TRUE;

		case WM_LBUTTONUP:
			g_bMousePressed = false;
			g_bMousePressedBoth = false;
			return TRUE;

		case WM_RBUTTONUP:
			g_bMousePressedR = false;
			g_bMousePressedBoth = false;
			return TRUE;

		case WM_MBUTTONUP:
			g_bMousePressedM = false;
			return TRUE;

		case WM_DROPFILES:
			{
				HDROP hDrop = (HDROP)wParam;

				char szFile[MAX_PATH];
				DragQueryFile(hDrop,0,szFile,sizeof(szFile));
				if (CDisplay::VIEWMODE_TEXTURE == CDisplay::Instance().GetViewMode())
				{
					// replace the selected texture with the new one ...
					CDisplay::Instance().ReplaceCurrentTexture(szFile);
				}
				else
				{
					const char* sz = strrchr(szFile,'.');
					if (sz && 0 != aiIsExtensionSupported(sz))
					{
						strcpy(g_szFileName,szFile);

						DeleteAsset();
						LoadAsset();
						UpdateHistory();
						SaveHistory();
					}
					else
					{
						if (!sz) goto __DRUNKEN_ALIEN_FROM_MARS;

						// check whether it is a typical texture file format ...
						++sz;
						if (0 == Assimp::ASSIMP_stricmp(sz,"png") ||
							0 == Assimp::ASSIMP_stricmp(sz,"bmp") ||
							0 == Assimp::ASSIMP_stricmp(sz,"jpg") ||
							0 == Assimp::ASSIMP_stricmp(sz,"tga") ||
							0 == Assimp::ASSIMP_stricmp(sz,"tif") ||
							0 == Assimp::ASSIMP_stricmp(sz,"hdr") ||
							0 == Assimp::ASSIMP_stricmp(sz,"ppm") ||
							0 == Assimp::ASSIMP_stricmp(sz,"pfm"))
						{
							CBackgroundPainter::Instance().SetTextureBG(szFile);
						}
						else if (0 == Assimp::ASSIMP_stricmp(sz,"dds"))
						{
							// DDS files could contain skyboxes, but they could also
							// contain normal 2D textures. The easiest way to find this
							// out is to open the file and check the header ...
							FILE* pFile = fopen(szFile,"rb");
							if (!pFile)goto __DRUNKEN_ALIEN_FROM_MARS;

							// header of a dds file (begin)
							/*
							DWORD dwMagic
							DWORD dwSize 
							DWORD dwFlags 
							DWORD dwHeight 
							DWORD dwWidth 
							DWORD dwPitchOrLinearSize 
							DWORD dwDepth  
							DWORD dwMipMapCount			  -> total with this: 32
							DWORD dwReserved1[11]		  -> total with this: 76
							DDPIXELFORMAT ddpfPixelFormat -> total with this: 108
							DWORD dwCaps1;				  -> total with this: 112	
							DWORD dwCaps2; ---< here we are!
							*/
							DWORD dwCaps = 0;
							fseek(pFile,112,SEEK_SET);
							fread(&dwCaps,4,1,pFile);

							if (dwCaps & 0x00000400L /* DDSCAPS2_CUBEMAP_POSITIVEX */)
							{
								CLogDisplay::Instance().AddEntry(
									"[INFO] Assuming this dds file is a skybox ...",
									D3DCOLOR_ARGB(0xFF,0xFF,0xFF,0));

								CBackgroundPainter::Instance().SetCubeMapBG(szFile);
							}
							else CBackgroundPainter::Instance().SetTextureBG(szFile);
							fclose(pFile);
						}
						else
						{
__DRUNKEN_ALIEN_FROM_MARS:
						CLogDisplay::Instance().AddEntry(
							"[ERROR] File extension is not supported. E.T. can read this.",
							D3DCOLOR_ARGB(0xFF,0xFF,0,0));
						}
					}
				}
				DragFinish(hDrop);
			}
			return TRUE;

		case WM_COMMAND:

			if (ID_VIEWER_QUIT == LOWORD(wParam))
				{
				PostQuitMessage(0);
				DestroyWindow(hwndDlg);
				}
			else if (ID_VIEWER_RESETVIEW == LOWORD(wParam))
				{
				g_sCamera.vPos = aiVector3D(0.0f,0.0f,-10.0f);
				g_sCamera.vLookAt = aiVector3D(0.0f,0.0f,1.0f);
				g_sCamera.vUp = aiVector3D(0.0f,1.0f,0.0f);
				g_sCamera.vRight = aiVector3D(0.0f,1.0f,0.0f);
				g_mWorldRotate = aiMatrix4x4();
				g_mWorld = aiMatrix4x4();

				// don't forget to reset the st
				CBackgroundPainter::Instance().ResetSB();
				}
			else if (ID__HELP == LOWORD(wParam))
				{
				DialogBox(g_hInstance,MAKEINTRESOURCE(IDD_AVHELP),
					hwndDlg,&HelpDialogProc);
				}
			else if (ID__ABOUT == LOWORD(wParam))
				{
				DialogBox(g_hInstance,MAKEINTRESOURCE(IDD_ABOUTBOX),
					hwndDlg,&AboutMessageProc);
				}
			else if (ID_TOOLS_LOGWINDOW == LOWORD(wParam))
				{
					CLogWindow::Instance().Show();
				}
			else if (ID_TOOLS_CLEARLOG == LOWORD(wParam))
				{
					CLogWindow::Instance().Clear();
				}
			else if (ID_TOOLS_SAVELOGTOFILE == LOWORD(wParam))
				{
					CLogWindow::Instance().Save();
				}
			else if (ID_VIEWER_MEMORYCONSUMATION == LOWORD(wParam))
				{
					DisplayMemoryConsumption();
				}
			else if (ID_VIEWER_H == LOWORD(wParam))
				{
				MakeFileAssociations();
				}
			else if (ID_BACKGROUND_CLEAR == LOWORD(wParam))
				{
				ClearBG();
				}
			else if (ID_BACKGROUND_SETCOLOR == LOWORD(wParam))
				{
				ChooseBGColor();
				}
			else if (ID_BACKGROUND_LOADTEXTURE == LOWORD(wParam))
				{
				LoadBGTexture();
				}
			else if (ID_BACKGROUND_LOADSKYBOX == LOWORD(wParam))
				{
				LoadSkybox();
				}
			else if (ID_VIEWER_SAVESCREENSHOTTOFILE == LOWORD(wParam))
				{
				SaveScreenshot();
				}
			else if (ID_VIEWER_OPEN == LOWORD(wParam))
				{
				OpenAsset();
				}
			else if (ID_TOOLS_FLIPNORMALS == LOWORD(wParam))
				{
				if (g_pcAsset && g_pcAsset->pcScene)
					{
					g_pcAsset->FlipNormals();
					}
				}
			else if (ID_TOOLS_ORIGINALNORMALS == LOWORD(wParam))
			{
				if (g_pcAsset && g_pcAsset->pcScene)
					{
					g_pcAsset->SetNormalSet(AssimpView::AssetHelper::ORIGINAL);

					HMENU hMenu = GetMenu(g_hDlg);
					ModifyMenu(hMenu,ID_TOOLS_ORIGINALNORMALS,
						MF_BYCOMMAND | MF_CHECKED | MF_STRING,ID_TOOLS_ORIGINALNORMALS,"Original normals");
					ModifyMenu(hMenu,ID_TOOLS_HARDNORMALS,
						MF_BYCOMMAND | MF_UNCHECKED | MF_STRING,ID_TOOLS_HARDNORMALS,"Hard normals");
					ModifyMenu(hMenu,ID_TOOLS_SMOOTHNORMALS,
						MF_BYCOMMAND | MF_UNCHECKED | MF_STRING,ID_TOOLS_SMOOTHNORMALS,"Smooth normals");
					}
				}
			else if (ID_TOOLS_SMOOTHNORMALS == LOWORD(wParam))
				{
				if (g_pcAsset && g_pcAsset->pcScene)
					{
					g_pcAsset->SetNormalSet(AssimpView::AssetHelper::SMOOTH);

					HMENU hMenu = GetMenu(g_hDlg);
					ModifyMenu(hMenu,ID_TOOLS_SMOOTHNORMALS,
						MF_BYCOMMAND | MF_CHECKED | MF_STRING,ID_TOOLS_SMOOTHNORMALS,"Smooth normals");
					ModifyMenu(hMenu,ID_TOOLS_HARDNORMALS,
						MF_BYCOMMAND | MF_UNCHECKED | MF_STRING,ID_TOOLS_HARDNORMALS,"Hard normals");
					ModifyMenu(hMenu,ID_TOOLS_ORIGINALNORMALS,
						MF_BYCOMMAND | MF_UNCHECKED | MF_STRING,ID_TOOLS_ORIGINALNORMALS,"Original normals");
					}
				}
			else if (ID_TOOLS_HARDNORMALS == LOWORD(wParam))
				{
				if (g_pcAsset && g_pcAsset->pcScene)
					{
					g_pcAsset->SetNormalSet(AssimpView::AssetHelper::HARD);

					HMENU hMenu = GetMenu(g_hDlg);
					ModifyMenu(hMenu,ID_TOOLS_HARDNORMALS,
						MF_BYCOMMAND | MF_CHECKED | MF_STRING,ID_TOOLS_HARDNORMALS,"Hard normals");
					ModifyMenu(hMenu,ID_TOOLS_ORIGINALNORMALS,
						MF_BYCOMMAND | MF_UNCHECKED | MF_STRING,ID_TOOLS_ORIGINALNORMALS,"Original normals");
					ModifyMenu(hMenu,ID_TOOLS_SMOOTHNORMALS,
						MF_BYCOMMAND | MF_UNCHECKED | MF_STRING,ID_TOOLS_SMOOTHNORMALS,"Smooth normals");
					}
				}
			else if (ID_TOOLS_STEREOVIEW == LOWORD(wParam))
				{
					g_sOptions.bStereoView =! g_sOptions.bStereoView;

					HMENU hMenu = GetMenu(g_hDlg);
					if (g_sOptions.bStereoView)
					{
						ModifyMenu(hMenu,ID_TOOLS_STEREOVIEW,
							MF_BYCOMMAND | MF_CHECKED | MF_STRING,ID_TOOLS_STEREOVIEW,"Stereo view");

						CLogDisplay::Instance().AddEntry("[INFO] Switched to stereo mode",
							D3DCOLOR_ARGB(0xFF,0xFF,0xFF,0));
					}
					else
					{
						ModifyMenu(hMenu,ID_TOOLS_STEREOVIEW,
							MF_BYCOMMAND | MF_UNCHECKED | MF_STRING,ID_TOOLS_STEREOVIEW,"Stereo view");

						CLogDisplay::Instance().AddEntry("[INFO] Switched to mono mode",
							D3DCOLOR_ARGB(0xFF,0xFF,0xFF,0));
					}
				}
			else if (ID_VIEWER_CLEARHISTORY == LOWORD(wParam))
				{
				ClearHistory();
				}
			else if (ID_VIEWER_CLOSEASSET == LOWORD(wParam))
				{
				DeleteAssetData();
				DeleteAsset();
				}
			else if (BN_CLICKED == HIWORD(wParam))
				{
				if (IDC_TOGGLEMS == LOWORD(wParam))
					{
					ToggleMS();
					}
				else if (IDC_TOGGLEMAT == LOWORD(wParam))
					{
					ToggleMats();
					}
				else if (IDC_LCOLOR1 == LOWORD(wParam))
					{
					DisplayColorDialog(&g_avLightColors[0]);
					InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),NULL,TRUE);
					UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR1));
					SaveLightColors();
					}
				else if (IDC_LCOLOR2 == LOWORD(wParam))
					{
					DisplayColorDialog(&g_avLightColors[1]);
					InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),NULL,TRUE);
					UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR2));
					SaveLightColors();
					}
				else if (IDC_LCOLOR3 == LOWORD(wParam))
					{
					DisplayColorDialog(&g_avLightColors[2]);
					InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),NULL,TRUE);
					UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR3));
					SaveLightColors();
				}
				else if (IDC_LRESET == LOWORD(wParam))
				{
					g_avLightColors[0] = D3DCOLOR_ARGB(0xFF,0xFF,0xFF,0xFF);
					g_avLightColors[1] = D3DCOLOR_ARGB(0xFF,0xFF,0x00,0x00);
					g_avLightColors[2] = D3DCOLOR_ARGB(0xFF,0x05,0x05,0x05);

					InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),NULL,TRUE);
					UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR1));
					InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),NULL,TRUE);
					UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR2));
					InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),NULL,TRUE);
					UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR3));
					SaveLightColors();
					}
				else if (IDC_NOSPECULAR == LOWORD(wParam))
					{
					ToggleSpecular();
					}
				else if (IDC_ZOOM == LOWORD(wParam))
					{
					ToggleFPSView();
					}
				else if (IDC_BLUBB == LOWORD(wParam))
					{
					ToggleUIState();
					}
				else if (IDC_TOGGLENORMALS == LOWORD(wParam))
					{
					ToggleNormals();
					}
				else if (IDC_LOWQUALITY == LOWORD(wParam))
					{
					ToggleLowQuality();
					}
				else if (IDC_3LIGHTS == LOWORD(wParam))
					{
					ToggleMultipleLights();
					}
				else if (IDC_LIGHTROTATE == LOWORD(wParam))
					{
					ToggleLightRotate();
					}
				else if (IDC_AUTOROTATE == LOWORD(wParam))
					{
					ToggleAutoRotate();
					}
				else if (IDC_TOGGLEWIRE == LOWORD(wParam))
					{
					ToggleWireFrame();
					}
				}
			// check the file history
			for (unsigned int i = 0; i < AI_VIEW_NUM_RECENT_FILES;++i)
			{
				if (AI_VIEW_RECENT_FILE_ID(i) == LOWORD(wParam))
				{
					strcpy(g_szFileName,g_aPreviousFiles[i].c_str());
					DeleteAssetData();
					DeleteAsset();
					LoadAsset();

					// update and safe the history
					UpdateHistory();
					SaveHistory();
				}
			}

			// handle popup menus for the tree window
			CDisplay::Instance().HandleTreeViewPopup(wParam,lParam);

			return TRUE;
		};
	return FALSE;
	}


//-------------------------------------------------------------------------------
// Message prcoedure for the progress dialog
//-------------------------------------------------------------------------------
INT_PTR CALLBACK ProgressMessageProc(HWND hwndDlg,UINT uMsg,
	 WPARAM wParam,LPARAM lParam)
	{
	UNREFERENCED_PARAMETER(lParam);
	switch (uMsg)
		{
		case WM_INITDIALOG:

			SendDlgItemMessage(hwndDlg,IDC_PROGRESS,PBM_SETRANGE,0,
				MAKELPARAM(0,500));

			SetTimer(hwndDlg,0,40,NULL);
			return TRUE;

		case WM_CLOSE:
			EndDialog(hwndDlg,0);
			return TRUE;

		case WM_COMMAND:

			if (IDOK == LOWORD(wParam))
				{
#if 0
				g_bLoadingCanceled = true;
				TerminateThread(g_hThreadHandle,5);
				g_pcAsset = NULL;

				EndDialog(hwndDlg,0);
#endif

				// PROBLEM: If we terminate the loader thread, ASSIMP's state
				// is undefined. Any further attempts to load assets will
				// fail.
				exit(5);
//				return TRUE;
				}
		case WM_TIMER:

			UINT iPos = (UINT)SendDlgItemMessage(hwndDlg,IDC_PROGRESS,PBM_GETPOS,0,0);
			iPos += 10;
			if (iPos > 490)iPos = 0;
			SendDlgItemMessage(hwndDlg,IDC_PROGRESS,PBM_SETPOS,iPos,0);

			if (g_bLoadingFinished)
				{
				EndDialog(hwndDlg,0);
				return TRUE;
				}

			return TRUE;
		}
	return FALSE;
	}


//-------------------------------------------------------------------------------
// Message procedure for the about dialog
//-------------------------------------------------------------------------------
INT_PTR CALLBACK AboutMessageProc(HWND hwndDlg,UINT uMsg,
    WPARAM wParam,LPARAM lParam)
	{
	UNREFERENCED_PARAMETER(lParam);
	switch (uMsg)
		{
		case WM_CLOSE:
			EndDialog(hwndDlg,0);
			return TRUE;

		case WM_COMMAND:

			if (IDOK == LOWORD(wParam))
				{
				EndDialog(hwndDlg,0);
				return TRUE;
				}
		}
	return FALSE;
	}
};

using namespace AssimpView;

//-------------------------------------------------------------------------------
// Entry point to the application
//-------------------------------------------------------------------------------
int APIENTRY _tWinMain(HINSTANCE hInstance,
					   HINSTANCE hPrevInstance,
					   LPTSTR    lpCmdLine,
					   int       nCmdShow)
	{
	UNREFERENCED_PARAMETER(hPrevInstance);
	UNREFERENCED_PARAMETER(lpCmdLine);

	// needed for the RichEdit control in the about/help dialog
	LoadLibrary( "riched20.dll" );

	// load windows common controls library to get XP style
	InitCommonControls();

	// intiailize the IDirect3D9 interface
	g_hInstance = hInstance;
	if (0 == InitD3D())
		{
		MessageBox(NULL,"Failed to initialize Direct3D 9",
			"ASSIMP ModelViewer",MB_OK);
		return -6;
		}

	// create the main dialog
	HWND hDlg = CreateDialog(hInstance,MAKEINTRESOURCE(IDD_DIALOGMAIN),
		NULL,&MessageProc);

	// initialise the default logger if neccessary
	Assimp::DefaultLogger::create("",Assimp::Logger::VERBOSE);
	Assimp::DefaultLogger::get()->attachStream((Assimp::LogStream*)&CLogWindow::Instance().pcStream,
		Assimp::DefaultLogger::DEBUGGING | Assimp::DefaultLogger::INFO |
		Assimp::DefaultLogger::ERR | Assimp::DefaultLogger::WARN);

	if (NULL == hDlg)
		{
		MessageBox(NULL,"Failed to create dialog from resource",
			"ASSIMP ModelViewer",MB_OK);
		return -5;
		}

	// display the window
	g_hDlg = hDlg;
	MSG uMsg;
	memset(&uMsg,0,sizeof( MSG));
	ShowWindow( hDlg, nCmdShow );
	UpdateWindow( hDlg );

	// create the D3D device object
	if (0 == CreateDevice(g_sOptions.bMultiSample,false,true))
		{
		MessageBox(NULL,"Failed to initialize Direct3D 9 (2)",
			"ASSIMP ModelViewer",MB_OK);
		return -4;
		}
	// setup ASSIMP standard limits for the SplitLargeMeshes-process
	aiSetTriangleSplitLimit(g_sCaps.MaxPrimitiveCount-1);
	aiSetVertexSplitLimit(0xFFFFFFFF);

	CLogDisplay::Instance().AddEntry("[OK] The viewer has been initialized successfully");

	// create the log window
	CLogWindow::Instance().Init();
	// set the focus to the main window
	SetFocus(g_hDlg);

	// recover background skyboxes/textures from the last session
	HKEY g_hRegistry;
	union
		{
		char szFileName[MAX_PATH];
		D3DCOLOR clrColor;
		};
	DWORD dwTemp = MAX_PATH;
	RegCreateKeyEx(HKEY_CURRENT_USER,
		"Software\\ASSIMP\\Viewer",NULL,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
	if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,"LastSkyBoxSrc",NULL,NULL,
		(BYTE*)szFileName,&dwTemp) && '\0' != szFileName[0])
		{
		CBackgroundPainter::Instance().SetCubeMapBG(szFileName);
		}
	else if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,"LastTextureSrc",NULL,NULL,
		(BYTE*)szFileName,&dwTemp) && '\0' != szFileName[0])
		{
		CBackgroundPainter::Instance().SetTextureBG(szFileName);
		}
	else if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,"Color",NULL,NULL,
		(BYTE*)&clrColor,&dwTemp))
		{
		CBackgroundPainter::Instance().SetColor(clrColor);
		}
	RegCloseKey(g_hRegistry);

	// now handle command line arguments
	HandleCommandLine(lpCmdLine);


	double adLast[30];
	for (int i = 0; i < 30;++i)adLast[i] = 0.0f;
	int iCurrent = 0;

	double g_dCurTime = 0;
	double g_dLastTime = 0;
	while( uMsg.message != WM_QUIT )
		{
		if( PeekMessage( &uMsg, NULL, 0, 0, PM_REMOVE ) )
			{ 
			TranslateMessage( &uMsg );
			DispatchMessage( &uMsg );

			if (WM_CHAR == uMsg.message)
				{

				switch ((char)uMsg.wParam)
					{
					case 'M':
					case 'm':

						CheckDlgButton(g_hDlg,IDC_TOGGLEMS,
							IsDlgButtonChecked(g_hDlg,IDC_TOGGLEMS) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleMS();
						break;

					case 'L':
					case 'l':

						CheckDlgButton(g_hDlg,IDC_3LIGHTS,
							IsDlgButtonChecked(g_hDlg,IDC_3LIGHTS) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleMultipleLights();
						break;

					case 'P':
					case 'p':

						CheckDlgButton(g_hDlg,IDC_LOWQUALITY,
							IsDlgButtonChecked(g_hDlg,IDC_LOWQUALITY) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleLowQuality();
						break;

					case 'D':
					case 'd':

						CheckDlgButton(g_hDlg,IDC_TOGGLEMAT,
							IsDlgButtonChecked(g_hDlg,IDC_TOGGLEMAT) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleMats();
						break;


					case 'N':
					case 'n':

						CheckDlgButton(g_hDlg,IDC_TOGGLENORMALS,
							IsDlgButtonChecked(g_hDlg,IDC_TOGGLENORMALS) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);
						ToggleNormals();
						break;


					case 'S':
					case 's':

						CheckDlgButton(g_hDlg,IDC_NOSPECULAR,
							IsDlgButtonChecked(g_hDlg,IDC_NOSPECULAR) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleSpecular();
						break;

					case 'A':
					case 'a':

						CheckDlgButton(g_hDlg,IDC_AUTOROTATE,
							IsDlgButtonChecked(g_hDlg,IDC_AUTOROTATE) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleAutoRotate();
						break;


					case 'R':
					case 'r':

						CheckDlgButton(g_hDlg,IDC_LIGHTROTATE,
							IsDlgButtonChecked(g_hDlg,IDC_LIGHTROTATE) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleLightRotate();
						break;

					case 'Z':
					case 'z':

						CheckDlgButton(g_hDlg,IDC_ZOOM,
							IsDlgButtonChecked(g_hDlg,IDC_ZOOM) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleFPSView();
						break;


					case 'W':
					case 'w':

						CheckDlgButton(g_hDlg,IDC_TOGGLEWIRE,
							IsDlgButtonChecked(g_hDlg,IDC_TOGGLEWIRE) == BST_CHECKED 
							? BST_UNCHECKED : BST_CHECKED);

						ToggleWireFrame();
						break;
					}
				}
			}

		// render the scene
		CDisplay::Instance().OnRender();

		g_dCurTime     = timeGetTime();
		g_fElpasedTime = (float)((g_dCurTime - g_dLastTime) * 0.001);
		g_dLastTime    = g_dCurTime;

		adLast[iCurrent++] = 1.0f / g_fElpasedTime;

		double dFPS = 0.0;
		for (int i = 0;i < 30;++i)
			dFPS += adLast[i];
		dFPS /= 30.0;

		if (30 == iCurrent)
			{
			iCurrent = 0;
			if (dFPS != g_fFPS)
				{
				g_fFPS = dFPS;
				char szOut[256];

				sprintf(szOut,"%i",(int)floorf((float)dFPS+0.5f));
				SetDlgItemText(g_hDlg,IDC_EFPS,szOut);
				}
			}
		}
	DeleteAsset();
	Assimp::DefaultLogger::kill();
	ShutdownDevice();
	ShutdownD3D();
	return 0;
	}