Merge with develop

code/nel/src/3d/driver/opengl/driver_opengl.cpp

@@ -234,10 +234,6 @@ CDriverGL::CDriverGL()
 	_CursorScale = 1.f;
 	_MouseCaptured = false;
 
-#if defined(NL_OS_WINDOWS)
-	_BorderlessFullscreen = false;
-#endif
-
 	_NeedToRestaureGammaRamp = false;
 
 	_win = EmptyWindow;

code/nel/src/3d/driver/opengl/driver_opengl.h

@@ -996,12 +996,6 @@ private:
 	EWindowStyle			getWindowStyle() const;
 	bool					setWindowStyle(EWindowStyle windowStyle);
 
-#if defined(NL_OS_WINDOWS)
-	static BOOL CALLBACK	monitorEnumProcFullscreen(HMONITOR hMonitor, HDC, LPRECT, LPARAM dwData);
-	bool					_BorderlessFullscreen;
-#endif
-	std::string				_CurrentDisplayDevice;
-
 	// Methods to manage screen resolutions
 	bool					restoreScreenMode();
 	bool					saveScreenMode();

code/nel/src/3d/driver/opengl/driver_opengl_window.cpp

@@ -1271,86 +1271,10 @@ static sint modeInfoToFrequency(XF86VidModeModeInfo *info)
 
 // ***************************************************************************
 
-#if defined(NL_OS_WINDOWS)
-
-struct CMonitorEnumParams
-{
-public:
-	CDriverGL *Driver;
-	const char *DeviceName;
-	bool Success;
-};
-
-BOOL CALLBACK CDriverGL::monitorEnumProcFullscreen(HMONITOR hMonitor, HDC, LPRECT, LPARAM dwData)
-{
-	CMonitorEnumParams *p = reinterpret_cast<CMonitorEnumParams *>(dwData);
-
-	MONITORINFOEXA monitorInfo;
-	memset(&monitorInfo, 0, sizeof(monitorInfo));
-	monitorInfo.cbSize = sizeof(monitorInfo);
-	GetMonitorInfoA(hMonitor, &monitorInfo);
-	nldebug("3D: Monitor: '%s'", monitorInfo.szDevice);
-
-	size_t devLen = strlen(monitorInfo.szDevice);
-	size_t targetLen = strlen(p->DeviceName);
-
-	nlassert(devLen < 32);
-	size_t minLen = min(devLen, targetLen);
-	if (!memcmp(monitorInfo.szDevice, p->DeviceName, minLen))
-	{
-		if (devLen == targetLen
-			|| (devLen < targetLen && (p->DeviceName[minLen] == '\\'))
-			|| (devLen > targetLen && (monitorInfo.szDevice[minLen] == '\\')))
-		{
-			nldebug("3D: Remapping '%s' to '%s'", p->DeviceName, monitorInfo.szDevice);
-			nldebug("3D: Found requested monitor at %i, %i", monitorInfo.rcMonitor.left, monitorInfo.rcMonitor.top);
-			p->Driver->_CurrentMode.Windowed = false;
-			p->Driver->setWindowStyle(CDriverGL::EWSWindowed);
-			p->Driver->setWindowSize(monitorInfo.rcMonitor.right - monitorInfo.rcMonitor.left, monitorInfo.rcMonitor.bottom - monitorInfo.rcMonitor.top);
-			LONG dwStyle = GetWindowLong(p->Driver->_win, GWL_STYLE);
-			SetWindowLong(p->Driver->_win, GWL_STYLE, dwStyle & ~WS_OVERLAPPEDWINDOW);
-			SetWindowPos(p->Driver->_win, NULL, 
-				monitorInfo.rcMonitor.left, 
-				monitorInfo.rcMonitor.top, 
-				monitorInfo.rcMonitor.right - monitorInfo.rcMonitor.left, 
-				monitorInfo.rcMonitor.bottom - monitorInfo.rcMonitor.top,
-				SWP_FRAMECHANGED);
-			p->Driver->_WindowX = monitorInfo.rcMonitor.left;
-			p->Driver->_WindowY = monitorInfo.rcMonitor.top;
-			p->Driver->_CurrentDisplayDevice = std::string(p->DeviceName);
-			p->Driver->_BorderlessFullscreen = true;
-			p->Driver->_CurrentMode.Windowed = false;
-			p->Success = true;
-			return FALSE;
-		}
-	}
-	p->Success = false;
-	return TRUE; // continue
-};
-
-#endif
-
-// ***************************************************************************
-
 bool CDriverGL::setScreenMode(const GfxMode &mode)
 {
 	H_AUTO_OGL(CDriverGL_setScreenMode)
 
-	nldebug("3D: setScreenMode");
-
-#if defined(NL_OS_WINDOWS)
-	if (_BorderlessFullscreen)
-	{
-		_BorderlessFullscreen = false;
-		LONG dwStyle = GetWindowLong(_win, GWL_STYLE);
-		dwStyle |= WS_OVERLAPPEDWINDOW;
-		if (!_Resizable) dwStyle ^= WS_MAXIMIZEBOX|WS_THICKFRAME;
-		SetWindowLong(_win, GWL_STYLE, dwStyle);
-		SetWindowPos(_win, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_FRAMECHANGED);
-		_CurrentMode.Windowed = true;
-	}
-#endif
-
 	if (mode.Windowed)
 	{
 		// if fullscreen, switch back to desktop screen mode
@@ -1360,17 +1284,13 @@ bool CDriverGL::setScreenMode(const GfxMode &mode)
 		return true;
 	}
 
-	if (_CurrentDisplayDevice != mode.DisplayDevice)
-		restoreScreenMode();
-
 	// save previous screen mode only if switching from windowed to fullscreen
 	if (_CurrentMode.Windowed)
 		saveScreenMode();
 
 	// if switching exactly to the same screen mode, doesn't change it
 	GfxMode previousMode;
-	if (_CurrentDisplayDevice == mode.DisplayDevice
-		&& getCurrentScreenMode(previousMode)
+	if (getCurrentScreenMode(previousMode)
 		&& mode.Width == previousMode.Width
 		&& mode.Height == previousMode.Height
 		&& mode.Depth == previousMode.Depth
@@ -1379,9 +1299,7 @@ bool CDriverGL::setScreenMode(const GfxMode &mode)
 
 #if defined(NL_OS_WINDOWS)
 
-	const char *deviceName = mode.DisplayDevice.c_str();
-
-	DEVMODEA devMode;
+	DEVMODE devMode;
 	memset(&devMode, 0, sizeof(DEVMODE));
 	devMode.dmSize        = sizeof(DEVMODE);
 	devMode.dmDriverExtra = 0;
@@ -1389,42 +1307,22 @@ bool CDriverGL::setScreenMode(const GfxMode &mode)
 	devMode.dmPelsWidth   = mode.Width;
 	devMode.dmPelsHeight  = mode.Height;
 
-	if (mode.Depth > 0)
+	if(mode.Depth > 0)
 	{
 		devMode.dmBitsPerPel  = mode.Depth;
 		devMode.dmFields     |= DM_BITSPERPEL;
 	}
 
-	if (mode.Frequency > 0)
+	if(mode.Frequency > 0)
 	{
 		devMode.dmDisplayFrequency  = mode.Frequency;
 		devMode.dmFields           |= DM_DISPLAYFREQUENCY;
 	}
 
-	if (deviceName[0])
+	if (ChangeDisplaySettings(&devMode, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
 	{
-		// First attempt exclusive fullscreen
-		nldebug("3D: ChangeDisplaySettingsEx");
-		LONG resex;
-		if ((resex = ChangeDisplaySettingsExA(deviceName, &devMode, NULL, CDS_FULLSCREEN, NULL)) != DISP_CHANGE_SUCCESSFUL)
-		{
-			nlwarning("3D: Fullscreen mode switch failed (%i)", (sint)resex);
-			// Workaround, resize to monitor and make borderless
-			CMonitorEnumParams p;
-			p.DeviceName = deviceName;
-			p.Driver = this;
-			EnumDisplayMonitors(NULL, NULL, monitorEnumProcFullscreen, (LPARAM)&p);
-			return p.Success;
-		}
-	}
-	else
-	{
-		nldebug("3D: ChangeDisplaySettings");
-		if (ChangeDisplaySettingsA(&devMode, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
-		{
-			nlwarning("3D: Fullscreen mode switch failed");
-			return false;
-		}
+		nlwarning("3D: Fullscreen mode switch failed");
+		return false;
 	}
 
 #elif defined(NL_OS_MAC)
@@ -1830,11 +1728,7 @@ bool CDriverGL::setWindowStyle(EWindowStyle windowStyle)
 		dwNewStyle |= WS_VISIBLE;
 
 	if (dwStyle != dwNewStyle)
-	{
 		SetWindowLong(_win, GWL_STYLE, dwNewStyle);
-		if (windowStyle == EWSWindowed)
-			SetWindowPos(_win, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_FRAMECHANGED);
-	}
 
 //	if (windowStyle == EWSMaximized && isVisible && !isMaximized)
 //		ShowWindow(_hWnd, SW_SHOWMAXIMIZED);
@@ -1962,24 +1856,19 @@ bool CDriverGL::setMode(const GfxMode& mode)
 		&& ScreenToClient(_win, &cursorPos);
 	sint curX = (sint)cursorPos.x * (sint)mode.Width;
 	sint curY = (sint)cursorPos.y * (sint)mode.Height;
-	if (_BorderlessFullscreen)
-		ReleaseCapture();
 #endif
 
 	if (!setScreenMode(mode))
 		return false;
 
-	if (!_BorderlessFullscreen)
-	{
-		// when changing window style, it's possible system change window size too
-		setWindowStyle(mode.Windowed ? EWSWindowed : EWSFullscreen);
+	// when changing window style, it's possible system change window size too
+	setWindowStyle(mode.Windowed ? EWSWindowed : EWSFullscreen);
 
-		if (!mode.Windowed)
-			_CurrentMode.Depth = mode.Depth;
+	if (!mode.Windowed)
+		_CurrentMode.Depth = mode.Depth;
 
-		setWindowSize(mode.Width, mode.Height);
-		setWindowPos(_WindowX, _WindowY);
-	}
+	setWindowSize(mode.Width, mode.Height);
+	setWindowPos(_WindowX, _WindowY);
 
 	switch (_CurrentMode.Depth)
 	{
@@ -1996,8 +1885,6 @@ bool CDriverGL::setMode(const GfxMode& mode)
 		cursorPos.y = curY / (sint)mode.Height;
 		ClientToScreen(_win, &cursorPos);
 		SetCursorPos(cursorPos.x, cursorPos.y);
-		if (_BorderlessFullscreen)
-			SetCapture(_win);
 	}
 #endif
 

code/nel/tools/3d/plugin_max/scripts/nel_assets_ps_batched.ms

@@ -0,0 +1,378 @@
+
+NEL3D_APPDATA_INTERFACE_FILE = 1423062700
+
+-- Allocate 20 Me for the script
+heapSize += 15000000
+
+nlErrorFilename = "W:/database/conversion.log"
+nlErrorStream = openFile nlErrorFilename mode:"w"
+if nlErrorStream == undefined then
+	nlErrorStream = createFile nlErrorFilename
+
+-- Log a message
+fn nllog message =
+(
+	if nlErrorStream != undefined then
+	(
+		format "%\n" message to:nlErrorStream
+		flush nlErrorStream
+	)
+
+	-- To the console
+	print message
+)
+
+include "nel_utility.ms"
+
+fn findFile dir fileName =
+(
+	if (doesFileExist (dir + "\\" + fileName)) then
+	(
+		return (dir + "\\" + fileName)
+	)
+
+	dirArr = GetDirectories (dir + "\\*")
+
+	for d in dirArr do
+	(
+		local fileFound = findFile d fileName
+		if (fileFound != "") then
+			return fileFound
+	)
+
+	return ""
+)
+
+fn getFixedPath ps =
+(
+	if not (doesFileExist ps) then
+	(
+		local fileName = filenameFromPath ps
+		local fileFound = findFile "W:\\database\\sfx" fileName
+		if (fileFound != "") then
+			return fileFound
+		else
+			return fileName
+	)
+	else
+	(
+		return ps
+	)
+)
+
+fn renameParticleSystem ps =
+(
+	local newFileName = getFixedPath ps.ps_file_name
+	if (newFileName != ps.ps_file_name) then
+	(
+		ps.ps_file_name = newFileName
+		return 1
+	)
+	else
+	(
+		return 0
+	)
+)
+
+
+rollout assets_ps_rollout "Properties"
+(
+	fn do_it =
+	(
+		local result = 0
+
+		for m in getClassInstances nel_ps do
+		(
+			if (renameParticleSystem m) == 1 then
+				result = 1
+		)
+		
+		max select none
+		
+		actionMan.executeAction 0 "40021"  -- Selection: Select All
+		actionMan.executeAction 0 "311"  -- Tools: Zoom Extents All Selected
+		actionMan.executeAction 0 "40807"  -- Views: Activate All Maps
+		actionMan.executeAction 0 "63508"  -- Views: Standard Display with Maps
+		actionMan.executeAction 0 "40043"  -- Selection: Select None
+		
+		max views redraw
+		
+		return result
+	)
+	
+	-- This script is a base script to include to add multiple functionality to your script
+
+	-- To use this script
+	--	Include it in your script into the rollout at the beginning.
+	--	Implement a do_it function to do the job in your rollout.
+	--	The function should retun -1 if an arror occured, else the count of modification done
+	--	It the function returns <1, the project will not be overwritten
+
+	Group "Running properties"
+	(
+		RadioButtons	SourceFiles				"Source projects"				labels:#("Current project", "All Projects in a folder") align:#left
+
+		Label			DirectoryLabel			"Source directory"							align:#left
+		EditText		Directory				""								width:500	align:#left enabled:false
+		Button			BrowseDirectory			"Browse..."						align:#left enabled:false
+
+		CheckBox		Recurse					"Look in subfolders"			checked:true enabled:false
+		CheckBox		Test					"Test only, do not save"		checked:false enabled:false
+		CheckBox		BackupFiles				"Backup files"					checked:false enabled:false
+		CheckBox		StopOnError				"Stop on error"					checked:false enabled:false
+		CheckBox		UseTag					"Use tag"						checked:false enabled:false
+
+		Label			ProgressText											width:500	align:#left
+		ProgressBar		Progress												width:500	align:#left
+
+		Button 			GoButton				"Go"							width:500	align:#left
+	)
+	
+	local countModifications
+	local countErrors
+	local fileModified
+	local fileParsed
+
+	fn UpdateData =
+	(
+		if SourceFiles.state == 2 then
+			isSourceDir = true
+		else
+			isSourceDir = false
+		if Test.checked == true then
+			isTest = true
+		else
+			isTest = false
+
+		Directory.enabled = isSourceDir
+		BrowseDirectory.enabled = isSourceDir
+		Recurse.enabled = isSourceDir
+		Test.enabled = isSourceDir
+		BackupFiles.enabled = isSourceDir and (isTest == false)
+		StopOnError.enabled = isSourceDir
+		UseTag.enabled = isSourceDir
+	)
+
+	on SourceFiles changed state do
+	(
+		UpdateData ()
+	)
+
+	on Test changed state do
+	(
+		UpdateData ()
+	)
+
+	fn call_do_it =
+	(
+		local result
+
+		-- One more project
+		fileParsed = fileParsed + 1
+
+		-- Call it
+		result = do_it ()
+
+		-- Error ?
+		if result < 0 then
+			countErrors = countErrors + 1
+		else 
+			countModifications = countModifications + result
+
+		-- Return result
+		return result
+	)
+
+	fn BackupFile file =
+	(
+		local i
+		local newFilename
+
+		i = 0
+		while true do
+		(
+			-- New file name
+			newFilename = file + ".backup_" + (i as string)
+
+			-- File exist ?
+			if (fileExist newFilename) == false then
+			(
+				if (copyFile file newFilename) == false then 
+					return false
+				else 
+					return true
+			)
+			i = i + 1
+		)
+	)
+
+	fn RecurseFolder currentDirectory =
+	(
+		resetMAXFile #noprompt
+		
+		local result
+		local file
+		local files
+		local origAnimStart
+		local origAnimEnd
+		local origFrameRate
+		
+		-- Parse files
+		files = getFiles (currentDirectory+"/*.max")
+		
+		-- For each files
+		for i = 1 to files.count do
+		(
+			-- File name
+			file = files[i]
+			
+			-- Progress bar
+			ProgressText.text  = "In directory "+currentDirectory+", compute file \"" + (getFilenameFile file) + "\""
+			Progress.value = i*100/files.count
+			
+			if (UseTag.checked == false) or ((NeLTestFileDate file "W:/database/conversion.tag") == true) then
+			(
+				resetMAXFile #noprompt
+				
+				nllog("CONVERT " + file)
+				
+				-- Open the max project
+				if loadMaxFile file quiet:true == true then
+				(
+					objXRefMgr.UpdateAllRecords()
+
+					result = call_do_it () 
+					
+					-- Error ?
+					if result < 0 then
+					(
+						if StopOnError.checked == true then
+							Messagebox ("Error in file " + file)
+					)
+					else
+					(
+						-- Save the max project ?
+						if (Test.checked == false) and (result != 0) then
+						(
+							-- Backup the max project ?
+							local ok
+							ok = true
+							if BackupFiles.checked == true then
+							(
+								-- Backup the file
+								if (BackupFile file) == false then
+								(
+									-- Don't save the file because backup has failed
+									ok = false
+
+									if StopOnError.checked == true then
+										Messagebox ("Can't backup file " + file)
+
+									-- One more error
+									countErrors = countErrors + 1
+								)
+							)
+
+							-- Save the max project ?
+							if ok == true then
+							(
+								if (saveMaxFile file) == true then
+								(
+									fileModified = fileModified + 1
+								)
+								else
+								(
+									if StopOnError.checked == true then
+										Messagebox ("Can't write file " + file)
+
+									-- One more error
+									countErrors = countErrors + 1
+								)
+							)
+						)
+					)
+				)
+				else
+				(
+					if StopOnError.checked == true then
+						Messagebox ("Can't load file " + file)
+
+					-- One more error
+					countErrors = countErrors + 1
+				)
+			)
+			else
+			(
+				nllog("SKIP " + file + " by tag")
+			)
+		)
+		
+		-- Parse sub directory ?
+		if (Recurse.checked == true) then
+		(
+			local directories
+
+			-- Get the directories
+			directories = getDirectories (currentDirectory+"/*")
+
+			-- For each directories
+			for dir in directories do
+			(
+				RecurseFolder dir
+			)
+		)
+	)
+	
+	on BrowseDirectory pressed do
+	(
+		local dir
+		try
+		(
+			dir = getSavePath () -- caption:"Select the projects directory"
+			if dir != undefined then
+				Directory.text = dir
+		)
+		catch 
+		(
+		)
+	)
+	
+	on GoButton pressed do
+	(
+		-- Reset count
+		countModifications = 0
+		countErrors = 0
+		fileModified = 0
+		fileParsed = 0
+		
+		-- Get files in the shape_source_directory
+		if SourceFiles.state == 2 then
+		(
+			-- Should warning user ?
+			if (SourceFiles.state == 2) and (Test.checked == false) then
+			(
+				-- Warning !
+				if ((queryBox "Warning, all the files in the specified folders will be overwrited.\nYou should backup your files before executing this script.\nDo you want to continue executing this script ?" beep:true) == true) then
+					RecurseFolder (adjustPathStringForScript Directory.text)
+			)
+			else
+			(
+				RecurseFolder (adjustPathStringForScript Directory.text)
+			)
+		)
+		else
+		(
+			-- Just compute the current project
+			call_do_it ()
+		)
+		
+		-- Show errors
+		ProgressText.text  = (fileParsed as string) + " project(s) opened, " + (countModifications as string) + " project modification(s), " + (fileModified as string) + " project(s) saved, " + (countErrors as string) + " error(s)."
+		Progress.value = 100
+	)
+)
+
+assets_ps_floater = newRolloutFloater "NeL Assets PS Database" 550 400
+addrollout assets_ps_rollout assets_ps_floater rolledUp:false
+
+

code/nel/tools/3d/plugin_max/scripts/nel_assets_resave.ms

@@ -0,0 +1,329 @@
+
+NEL3D_APPDATA_INTERFACE_FILE = 1423062700
+
+-- Allocate 20 Me for the script
+heapSize += 15000000
+
+nlErrorFilename = "W:/database/conversion.log"
+nlErrorStream = openFile nlErrorFilename mode:"w"
+if nlErrorStream == undefined then
+	nlErrorStream = createFile nlErrorFilename
+
+-- Log a message
+fn nllog message =
+(
+	if nlErrorStream != undefined then
+	(
+		format "%\n" message to:nlErrorStream
+		flush nlErrorStream
+	)
+
+	-- To the console
+	print message
+)
+
+include "nel_utility.ms"
+
+rollout assets_resave_rollout "Properties"
+(
+	fn do_it =
+	(
+		max select none
+		
+		actionMan.executeAction 0 "40021"  -- Selection: Select All
+		actionMan.executeAction 0 "311"  -- Tools: Zoom Extents All Selected
+		actionMan.executeAction 0 "40807"  -- Views: Activate All Maps
+		actionMan.executeAction 0 "63508"  -- Views: Standard Display with Maps
+		actionMan.executeAction 0 "40043"  -- Selection: Select None
+		
+		max views redraw
+		
+		return 1
+	)
+	
+	-- This script is a base script to include to add multiple functionality to your script
+
+	-- To use this script
+	--	Include it in your script into the rollout at the beginning.
+	--	Implement a do_it function to do the job in your rollout.
+	--	The function should retun -1 if an arror occured, else the count of modification done
+	--	It the function returns <1, the project will not be overwritten
+
+	Group "Running properties"
+	(
+		RadioButtons	SourceFiles				"Source projects"				labels:#("Current project", "All Projects in a folder") align:#left
+
+		Label			DirectoryLabel			"Source directory"							align:#left
+		EditText		Directory				""								width:500	align:#left enabled:false
+		Button			BrowseDirectory			"Browse..."						align:#left enabled:false
+
+		CheckBox		Recurse					"Look in subfolders"			checked:true enabled:false
+		CheckBox		Test					"Test only, do not save"		checked:false enabled:false
+		CheckBox		BackupFiles				"Backup files"					checked:false enabled:false
+		CheckBox		StopOnError				"Stop on error"					checked:false enabled:false
+		CheckBox		UseTag					"Use tag"						checked:false enabled:false
+
+		Label			ProgressText											width:500	align:#left
+		ProgressBar		Progress												width:500	align:#left
+
+		Button 			GoButton				"Go"							width:500	align:#left
+	)
+	
+	local countModifications
+	local countErrors
+	local fileModified
+	local fileParsed
+
+	fn UpdateData =
+	(
+		if SourceFiles.state == 2 then
+			isSourceDir = true
+		else
+			isSourceDir = false
+		if Test.checked == true then
+			isTest = true
+		else
+			isTest = false
+
+		Directory.enabled = isSourceDir
+		BrowseDirectory.enabled = isSourceDir
+		Recurse.enabled = isSourceDir
+		Test.enabled = isSourceDir
+		BackupFiles.enabled = isSourceDir and (isTest == false)
+		StopOnError.enabled = isSourceDir
+		UseTag.enabled = isSourceDir
+	)
+
+	on SourceFiles changed state do
+	(
+		UpdateData ()
+	)
+
+	on Test changed state do
+	(
+		UpdateData ()
+	)
+
+	fn call_do_it =
+	(
+		local result
+
+		-- One more project
+		fileParsed = fileParsed + 1
+
+		-- Call it
+		result = do_it ()
+
+		-- Error ?
+		if result < 0 then
+			countErrors = countErrors + 1
+		else 
+			countModifications = countModifications + result
+
+		-- Return result
+		return result
+	)
+
+	fn BackupFile file =
+	(
+		local i
+		local newFilename
+
+		i = 0
+		while true do
+		(
+			-- New file name
+			newFilename = file + ".backup_" + (i as string)
+
+			-- File exist ?
+			if (fileExist newFilename) == false then
+			(
+				if (copyFile file newFilename) == false then 
+					return false
+				else 
+					return true
+			)
+			i = i + 1
+		)
+	)
+
+	fn RecurseFolder currentDirectory =
+	(
+		resetMAXFile #noprompt
+		
+		local result
+		local file
+		local files
+		local origAnimStart
+		local origAnimEnd
+		local origFrameRate
+		
+		-- Parse files
+		files = getFiles (currentDirectory+"/*.max")
+		
+		-- For each files
+		for i = 1 to files.count do
+		(
+			-- File name
+			file = files[i]
+			
+			-- Progress bar
+			ProgressText.text  = "In directory "+currentDirectory+", compute file \"" + (getFilenameFile file) + "\""
+			Progress.value = i*100/files.count
+			
+			if (UseTag.checked == false) or ((NeLTestFileDate file "W:/database/conversion.tag") == true) then
+			(
+				resetMAXFile #noprompt
+				
+				nllog("CONVERT " + file)
+				
+				-- Open the max project
+				if loadMaxFile file quiet:true == true then
+				(
+					origAnimStart = animationRange.start
+					origAnimEnd = animationRange.end
+					origFrameRate = frameRate
+					
+					resetMAXFile #noprompt
+					
+					animationRange = interval origAnimStart origAnimEnd
+					frameRate = origFrameRate
+					
+					-- Merge the max project
+					if mergeMaxFile file quiet:true == true then
+					(
+						result = call_do_it () 
+						
+						-- Error ?
+						if result < 0 then
+						(
+							if StopOnError.checked == true then
+								Messagebox ("Error in file " + file)
+						)
+						else
+						(
+							-- Save the max project ?
+							if (Test.checked == false) and (result != 0) then
+							(
+								-- Backup the max project ?
+								local ok
+								ok = true
+								if BackupFiles.checked == true then
+								(
+									-- Backup the file
+									if (BackupFile file) == false then
+									(
+										-- Don't save the file because backup has failed
+										ok = false
+
+										if StopOnError.checked == true then
+											Messagebox ("Can't backup file " + file)
+
+										-- One more error
+										countErrors = countErrors + 1
+									)
+								)
+
+								-- Save the max project ?
+								if ok == true then
+								(
+									if (saveMaxFile file) == true then
+									(
+										fileModified = fileModified + 1
+									)
+									else
+									(
+										if StopOnError.checked == true then
+											Messagebox ("Can't write file " + file)
+
+										-- One more error
+										countErrors = countErrors + 1
+									)
+								)
+							)
+						)
+					)
+					else
+					(
+						if StopOnError.checked == true then
+							Messagebox ("Can't load file " + file)
+
+						-- One more error
+						countErrors = countErrors + 1
+					)
+				)
+			)
+			else
+			(
+				nllog("SKIP " + file + " by tag")
+			)
+		)
+		
+		-- Parse sub directory ?
+		if (Recurse.checked == true) then
+		(
+			local directories
+
+			-- Get the directories
+			directories = getDirectories (currentDirectory+"/*")
+
+			-- For each directories
+			for dir in directories do
+			(
+				RecurseFolder dir
+			)
+		)
+	)
+	
+	on BrowseDirectory pressed do
+	(
+		local dir
+		try
+		(
+			dir = getSavePath () -- caption:"Select the projects directory"
+			if dir != undefined then
+				Directory.text = dir
+		)
+		catch 
+		(
+		)
+	)
+	
+	on GoButton pressed do
+	(
+		-- Reset count
+		countModifications = 0
+		countErrors = 0
+		fileModified = 0
+		fileParsed = 0
+		
+		-- Get files in the shape_source_directory
+		if SourceFiles.state == 2 then
+		(
+			-- Should warning user ?
+			if (SourceFiles.state == 2) and (Test.checked == false) then
+			(
+				-- Warning !
+				if ((queryBox "Warning, all the files in the specified folders will be overwrited.\nYou should backup your files before executing this script.\nDo you want to continue executing this script ?" beep:true) == true) then
+					RecurseFolder (adjustPathStringForScript Directory.text)
+			)
+			else
+			(
+				RecurseFolder (adjustPathStringForScript Directory.text)
+			)
+		)
+		else
+		(
+			-- Just compute the current project
+			call_do_it ()
+		)
+		
+		-- Show errors
+		ProgressText.text  = (fileParsed as string) + " project(s) opened, " + (countModifications as string) + " project modification(s), " + (fileModified as string) + " project(s) saved, " + (countErrors as string) + " error(s)."
+		Progress.value = 100
+	)
+)
+
+assets_resave_floater = newRolloutFloater "NeL Assets Resave Database" 550 874
+addrollout assets_resave_rollout assets_resave_floater rolledUp:false
+

code/nel/tools/3d/plugin_max/scripts/nel_assets_resave_hard.ms

@@ -0,0 +1,316 @@
+
+NEL3D_APPDATA_INTERFACE_FILE = 1423062700
+
+-- Allocate 20 Me for the script
+heapSize += 15000000
+
+nlErrorFilename = "W:/database/conversion.log"
+nlErrorStream = openFile nlErrorFilename mode:"w"
+if nlErrorStream == undefined then
+	nlErrorStream = createFile nlErrorFilename
+
+-- Log a message
+fn nllog message =
+(
+	if nlErrorStream != undefined then
+	(
+		format "%\n" message to:nlErrorStream
+		flush nlErrorStream
+	)
+
+	-- To the console
+	print message
+)
+
+include "nel_utility.ms"
+
+rollout assets_resave_rollout "Properties"
+(
+	fn do_it =
+	(
+		max select none
+		
+		actionMan.executeAction 0 "40021"  -- Selection: Select All
+		actionMan.executeAction 0 "311"  -- Tools: Zoom Extents All Selected
+		actionMan.executeAction 0 "40807"  -- Views: Activate All Maps
+		actionMan.executeAction 0 "63508"  -- Views: Standard Display with Maps
+		actionMan.executeAction 0 "40043"  -- Selection: Select None
+		
+		max views redraw
+		
+		return 1
+	)
+	
+	-- This script is a base script to include to add multiple functionality to your script
+
+	-- To use this script
+	--	Include it in your script into the rollout at the beginning.
+	--	Implement a do_it function to do the job in your rollout.
+	--	The function should retun -1 if an arror occured, else the count of modification done
+	--	It the function returns <1, the project will not be overwritten
+
+	Group "Running properties"
+	(
+		RadioButtons	SourceFiles				"Source projects"				labels:#("Current project", "All Projects in a folder") align:#left
+
+		Label			DirectoryLabel			"Source directory"							align:#left
+		EditText		Directory				""								width:500	align:#left enabled:false
+		Button			BrowseDirectory			"Browse..."						align:#left enabled:false
+
+		CheckBox		Recurse					"Look in subfolders"			checked:true enabled:false
+		CheckBox		Test					"Test only, do not save"		checked:false enabled:false
+		CheckBox		BackupFiles				"Backup files"					checked:false enabled:false
+		CheckBox		StopOnError				"Stop on error"					checked:false enabled:false
+		CheckBox		UseTag					"Use tag"						checked:false enabled:false
+
+		Label			ProgressText											width:500	align:#left
+		ProgressBar		Progress												width:500	align:#left
+
+		Button 			GoButton				"Go"							width:500	align:#left
+	)
+	
+	local countModifications
+	local countErrors
+	local fileModified
+	local fileParsed
+
+	fn UpdateData =
+	(
+		if SourceFiles.state == 2 then
+			isSourceDir = true
+		else
+			isSourceDir = false
+		if Test.checked == true then
+			isTest = true
+		else
+			isTest = false
+
+		Directory.enabled = isSourceDir
+		BrowseDirectory.enabled = isSourceDir
+		Recurse.enabled = isSourceDir
+		Test.enabled = isSourceDir
+		BackupFiles.enabled = isSourceDir and (isTest == false)
+		StopOnError.enabled = isSourceDir
+		UseTag.enabled = isSourceDir
+	)
+
+	on SourceFiles changed state do
+	(
+		UpdateData ()
+	)
+
+	on Test changed state do
+	(
+		UpdateData ()
+	)
+
+	fn call_do_it =
+	(
+		local result
+
+		-- One more project
+		fileParsed = fileParsed + 1
+
+		-- Call it
+		result = do_it ()
+
+		-- Error ?
+		if result < 0 then
+			countErrors = countErrors + 1
+		else 
+			countModifications = countModifications + result
+
+		-- Return result
+		return result
+	)
+
+	fn BackupFile file =
+	(
+		local i
+		local newFilename
+
+		i = 0
+		while true do
+		(
+			-- New file name
+			newFilename = file + ".backup_" + (i as string)
+
+			-- File exist ?
+			if (fileExist newFilename) == false then
+			(
+				if (copyFile file newFilename) == false then 
+					return false
+				else 
+					return true
+			)
+			i = i + 1
+		)
+	)
+
+	fn RecurseFolder currentDirectory =
+	(
+		resetMAXFile #noprompt
+		
+		local result
+		local file
+		local files
+		local origAnimStart
+		local origAnimEnd
+		local origFrameRate
+		
+		-- Parse files
+		files = getFiles (currentDirectory+"/*.max")
+		
+		-- For each files
+		for i = 1 to files.count do
+		(
+			-- File name
+			file = files[i]
+			
+			-- Progress bar
+			ProgressText.text  = "In directory "+currentDirectory+", compute file \"" + (getFilenameFile file) + "\""
+			Progress.value = i*100/files.count
+			
+			if (UseTag.checked == false) or ((NeLTestFileDate file "W:/database/conversion.tag") == true) then
+			(
+				resetMAXFile #noprompt
+				
+				nllog("CONVERT " + file)
+					
+				-- Merge the max project
+				if mergeMaxFile file quiet:true == true then
+				(
+					result = call_do_it () 
+					
+					-- Error ?
+					if result < 0 then
+					(
+						if StopOnError.checked == true then
+							Messagebox ("Error in file " + file)
+					)
+					else
+					(
+						-- Save the max project ?
+						if (Test.checked == false) and (result != 0) then
+						(
+							-- Backup the max project ?
+							local ok
+							ok = true
+							if BackupFiles.checked == true then
+							(
+								-- Backup the file
+								if (BackupFile file) == false then
+								(
+									-- Don't save the file because backup has failed
+									ok = false
+
+									if StopOnError.checked == true then
+										Messagebox ("Can't backup file " + file)
+
+									-- One more error
+									countErrors = countErrors + 1
+								)
+							)
+
+							-- Save the max project ?
+							if ok == true then
+							(
+								if (saveMaxFile file) == true then
+								(
+									fileModified = fileModified + 1
+								)
+								else
+								(
+									if StopOnError.checked == true then
+										Messagebox ("Can't write file " + file)
+
+									-- One more error
+									countErrors = countErrors + 1
+								)
+							)
+						)
+					)
+				)
+				else
+				(
+					if StopOnError.checked == true then
+						Messagebox ("Can't load file " + file)
+
+					-- One more error
+					countErrors = countErrors + 1
+				)
+			)
+			else
+			(
+				nllog("SKIP " + file + " by tag")
+			)
+		)
+		
+		-- Parse sub directory ?
+		if (Recurse.checked == true) then
+		(
+			local directories
+
+			-- Get the directories
+			directories = getDirectories (currentDirectory+"/*")
+
+			-- For each directories
+			for dir in directories do
+			(
+				RecurseFolder dir
+			)
+		)
+	)
+	
+	on BrowseDirectory pressed do
+	(
+		local dir
+		try
+		(
+			dir = getSavePath () -- caption:"Select the projects directory"
+			if dir != undefined then
+				Directory.text = dir
+		)
+		catch 
+		(
+		)
+	)
+	
+	on GoButton pressed do
+	(
+		-- Reset count
+		countModifications = 0
+		countErrors = 0
+		fileModified = 0
+		fileParsed = 0
+		
+		-- Get files in the shape_source_directory
+		if SourceFiles.state == 2 then
+		(
+			-- Should warning user ?
+			if (SourceFiles.state == 2) and (Test.checked == false) then
+			(
+				-- Warning !
+				if ((queryBox "Warning, all the files in the specified folders will be overwrited.\nYou should backup your files before executing this script.\nDo you want to continue executing this script ?" beep:true) == true) then
+					RecurseFolder (adjustPathStringForScript Directory.text)
+			)
+			else
+			(
+				RecurseFolder (adjustPathStringForScript Directory.text)
+			)
+		)
+		else
+		(
+			-- Just compute the current project
+			call_do_it ()
+		)
+		
+		-- Show errors
+		ProgressText.text  = (fileParsed as string) + " project(s) opened, " + (countModifications as string) + " project modification(s), " + (fileModified as string) + " project(s) saved, " + (countErrors as string) + " error(s)."
+		Progress.value = 100
+	)
+)
+
+assets_resave_floater = newRolloutFloater "NeL Assets Resave Database Hard" 550 874
+addrollout assets_resave_rollout assets_resave_floater rolledUp:false
+

code/ryzom/client/src/release.cpp

@@ -27,6 +27,7 @@
 #include "nel/misc/system_utils.h"
 // 3D Interface.
 #include "nel/3d/bloom_effect.h"
+#include "nel/3d/fxaa.h"
 #include "nel/3d/fasthls_modifier.h"
 #include "nel/3d/particle_system_manager.h"
 #include "nel/3d/particle_system.h"

code/ryzom/tools/server/ai_build_wmap/build_proximity_maps.cpp

@@ -27,7 +27,7 @@
 #include "nel/misc/file.h"
 
 // Game share
-#include "server_share/bmp4image.h"
+#include "game_share/bmp4image.h"
 
 // AI share
 #include "ai_share/world_map.h"

code/studio/src/plugins/gui_editor/CMakeLists.txt

@@ -34,6 +34,8 @@ SET(OVQT_PLUGIN_GUI_EDITOR_HDR
 	texture_chooser.h
 	action_property_manager.h
 	texture_property_manager.h
+	expression_editor.h
+	expr_link_dlg.h
 	)
 	
 SET(OVQT_PLUGIN_GUI_EDITOR_UIS
@@ -51,6 +53,8 @@ SET(OVQT_PLUGIN_GUI_EDITOR_UIS
 	add_widget_widget.ui
 	action_list.ui
 	texture_chooser.ui
+	expression_editor.ui
+	expr_link_dlg.ui
 	)
 
 SET(QT_USE_QTGUI TRUE)

code/studio/src/plugins/gui_editor/expr_link_dlg.cpp

@@ -0,0 +1,124 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#include "expr_link_dlg.h"
+#include <QMessageBox>
+
+ExprLinkDlg::ExprLinkDlg( QWidget *parent ) :
+QDialog( parent )
+{
+	m_ui.setupUi( this );
+
+	connect( m_ui.okButton, SIGNAL( clicked( bool ) ), this, SLOT( onOKClicked() ) );
+	connect( m_ui.cancelButton, SIGNAL( clicked( bool ) ), this, SLOT( onCancelClicked() ) );
+}
+
+ExprLinkDlg::~ExprLinkDlg()
+{
+}
+
+void ExprLinkDlg::load( const QList< SlotInfo > &a, const QList< SlotInfo > &b, const QString &aname, const QString &bname )
+{
+	QListIterator< SlotInfo > itra( a );
+	QListIterator< SlotInfo > itrb( b );
+
+	while( itra.hasNext() )
+	{
+		const SlotInfo &info = itra.next();
+
+		QListWidgetItem *item = new QListWidgetItem();
+		item->setText( info.name );
+		item->setData( Qt::UserRole, info.slot );
+
+		m_ui.list1->addItem( item );
+	}
+
+	while( itrb.hasNext() )
+	{
+		const SlotInfo &info = itrb.next();
+
+		QListWidgetItem *item = new QListWidgetItem();
+		item->setText( info.name );
+		item->setData( Qt::UserRole, info.slot );
+
+		m_ui.list2->addItem( item );
+	}
+
+	m_ui.groupBox1->setTitle( aname );
+	m_ui.groupBox2->setTitle( bname );
+}
+
+int ExprLinkDlg::getSlotA() const
+{
+	QListWidgetItem *item = m_ui.list1->currentItem();
+	if( item == NULL )
+		return -1;
+
+	int slot = item->data( Qt::UserRole ).toInt();
+	return slot;
+}
+
+int ExprLinkDlg::getSlotB() const
+{
+	QListWidgetItem *item = m_ui.list2->currentItem();
+	if( item == NULL )
+		return -1;
+
+	int slot = item->data( Qt::UserRole ).toInt();
+	return slot;
+}
+
+void ExprLinkDlg::onOKClicked()
+{
+	int slotA = getSlotA();
+	int slotB = getSlotB();
+
+	if( ( slotA == -1 ) || ( slotB == -1 ) )
+	{
+		QMessageBox::information( this,
+									tr( "No slots selected" ),
+									tr( "You need to select a slot on both sides." ) );
+		return;
+	}
+
+	if( ( slotA == 0 ) && ( slotB == 0 ) )
+	{
+		QMessageBox::information( this,
+									tr( "Wrong slots selected" ),
+									tr( "You can only select the 'Out' slot on one of the sides." ) );
+		return;
+	}
+
+	if( ( slotA != 0 ) && ( slotB != 0 ) )
+	{
+		QMessageBox::information( this,
+									tr( "Wrong slots selected" ),
+									tr( "One of the slots selected must be the 'Out' slot!" ) );
+		return;
+	}
+
+	accept();
+}
+
+void ExprLinkDlg::onCancelClicked()
+{
+	reject();
+}
+
+

code/studio/src/plugins/gui_editor/expr_link_dlg.h

@@ -0,0 +1,49 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#ifndef EXPR_LINK_DLG
+#define EXPR_LINK_DLG
+
+#include <QDialog>
+#include <QList>
+#include "ui_expr_link_dlg.h"
+#include "expr_slot_info.h"
+
+class ExprLinkDlg : public QDialog
+{
+	Q_OBJECT
+public:
+	ExprLinkDlg( QWidget *parent = NULL );
+	~ExprLinkDlg();
+
+	void load( const QList< SlotInfo > &a, const QList< SlotInfo > &b, const QString &aname, const QString &bname );
+
+	int getSlotA() const;
+	int getSlotB() const;
+
+private Q_SLOTS:
+	void onOKClicked();
+	void onCancelClicked();
+
+private:
+	Ui::ExprLinkDialog m_ui;
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expr_link_dlg.ui

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExprLinkDialog</class>
+ <widget class="QDialog" name="ExprLinkDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>641</width>
+    <height>334</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Linking nodes</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout_3">
+   <item row="0" column="0" colspan="3">
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QGroupBox" name="groupBox1">
+       <property name="title">
+        <string>GroupBox</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout">
+        <item row="0" column="0">
+         <widget class="QListWidget" name="list1"/>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBox2">
+       <property name="title">
+        <string>GroupBox</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="0" column="0">
+         <widget class="QListWidget" name="list2"/>
+        </item>
+       </layout>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="1" column="0">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>398</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="okButton">
+     <property name="text">
+      <string>Ok</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="2">
+    <widget class="QPushButton" name="cancelButton">
+     <property name="text">
+      <string>Cancel</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

code/studio/src/plugins/gui_editor/expr_slot_info.h

@@ -0,0 +1,32 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#ifndef EXPR_SLOT_INFO
+#define EXPR_SLOT_INFO
+
+#include <QString>
+
+struct SlotInfo
+{
+	QString name;
+	int slot;
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expression_editor.cpp

@@ -0,0 +1,377 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#include "expression_editor.h"
+#include <QGraphicsScene>
+#include <QGraphicsItem>
+#include <QMenu>
+#include <qevent.h>
+
+#include "expression_node.h"
+#include "expression_link.h"
+#include "expr_link_dlg.h"
+#include "expression_store.h"
+#include "expression_info.h"
+
+#include <QMessageBox>
+#include <QInputDialog>
+
+class ExpressionEditorPvt
+{
+public:
+
+	ExpressionEditorPvt()
+	{
+		m_root = NULL;
+	}
+
+	ExpressionStore store;
+	ExpressionNode *m_root;
+};
+
+ExpressionEditor::ExpressionEditor( QWidget *parent ) :
+QMainWindow( parent )
+{
+	m_ui.setupUi( this );
+
+	m_pvt = new ExpressionEditorPvt();
+	
+	m_selectionCount = 0;
+
+	m_scene = new QGraphicsScene( this );
+	m_ui.view->setScene( m_scene );
+
+	connect( m_scene, SIGNAL( selectionChanged() ), this, SLOT( onSelectionChanged() ) );
+	connect( m_ui.tree, SIGNAL( itemDoubleClicked( QTreeWidgetItem*, int ) ), this, SLOT( onItemDblClicked( QTreeWidgetItem* ) ) );
+
+	m_nodeCount = 0;
+}
+
+ExpressionEditor::~ExpressionEditor()
+{
+	delete m_pvt;
+	m_pvt = NULL;
+	m_scene = NULL;
+}
+
+void ExpressionEditor::load()
+{
+	m_pvt->store.load();
+
+	QList< const ExpressionInfo* > l;
+	m_pvt->store.getExpressions( l );
+
+	QListIterator< const ExpressionInfo* > itr( l );
+	while( itr.hasNext() )
+	{
+		addExpression( itr.next() );
+	}
+
+	l.clear();
+}
+
+void ExpressionEditor::contextMenuEvent( QContextMenuEvent *e )
+{	
+	QMenu menu;
+	QAction *a = NULL;
+
+	if( m_selectionCount > 0 )
+	{
+		a = menu.addAction( "Remove" );
+		connect( a, SIGNAL( triggered() ), this, SLOT( onDeleteSelection() ) );
+
+		if( m_selectionCount == 1 )
+		{
+			QList< QGraphicsItem* > l = m_scene->selectedItems();
+			ExpressionNode *node = dynamic_cast< ExpressionNode* >( l[ 0 ] );
+			if( node != NULL )
+			{
+				if( node->variable() )
+				{
+					a = menu.addAction( "Change slot count" );
+					connect( a, SIGNAL( triggered() ), this, SLOT( onChangeSlotCount() ) );
+				}
+				else
+				if( node->isValue() )
+				{
+					a = menu.addAction( "Change value" );
+					connect( a, SIGNAL( triggered() ), this, SLOT( onChangeValue() ) );
+				}
+
+				a = menu.addAction( "Set as root" );
+				connect( a, SIGNAL( triggered() ), this, SLOT( onSetRoot() ) );
+			}
+		}
+		else
+		if( m_selectionCount == 2 )
+		{
+			a = menu.addAction( "Link" );
+			connect( a, SIGNAL( triggered() ), this, SLOT( onLinkItems() ) );
+		}
+
+		a = menu.addAction( "Unlink" );
+		connect( a, SIGNAL( triggered() ), this, SLOT( onUnLinkItems() ) );
+	}
+	else
+	{
+		a = menu.addAction( "Build expression" );
+		connect( a, SIGNAL( triggered() ), this, SLOT( onBuildExpression() ) );
+
+		a = menu.addAction( "Save" );
+		connect( a, SIGNAL( triggered() ), this, SLOT( onSave() ) );
+
+		a = menu.addAction( "Clear" );
+		connect( a, SIGNAL( triggered() ), this, SLOT( onClear() ) );
+	}
+
+	menu.exec( e->globalPos() );
+}
+
+void ExpressionEditor::closeEvent( QCloseEvent *e )
+{
+	QMainWindow::closeEvent( e );
+
+	Q_EMIT closing();
+}
+
+void ExpressionEditor::onDeleteSelection()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+	QListIterator< QGraphicsItem* > itr( l );
+	while( itr.hasNext() )
+	{
+		QGraphicsItem *item = itr.next();
+
+		ExpressionNode *node = dynamic_cast< ExpressionNode* >( item );
+		if( node != NULL )		
+		{
+			ExpressionLink *link = NULL;
+
+			int c = node->slotCount();
+			for( int i = 0; i < c; i++ )
+			{
+				link = node->link( i );
+				if( link != NULL )
+				{
+					link->unlink();
+					m_scene->removeItem( link );
+					delete link;
+				}
+			}
+		}
+
+		m_scene->removeItem( item );
+		delete item;
+	}
+}
+
+void ExpressionEditor::onSelectionChanged()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+	m_selectionCount = l.count();
+}
+
+void ExpressionEditor::onLinkItems()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+	ExpressionNode *from = static_cast< ExpressionNode* >( l[ 0 ] );
+	ExpressionNode *to = static_cast< ExpressionNode* >( l[ 1 ] );
+
+	QList< SlotInfo > froml;
+	QList< SlotInfo > tol;
+
+	from->getSlots( froml );
+	to->getSlots( tol );
+
+	// If there are no free slots, or both "Out" slots are taken we can't link
+	if( froml.isEmpty() || tol.isEmpty() || ( !from->slotEmpty( 0 ) && !to->slotEmpty( 0 ) ) )
+	{
+		QMessageBox::information( this,
+									tr( "Failed to link nodes" ),
+									tr( "Unfortunately those nodes are full." ) );
+		return;
+	}
+
+	ExprLinkDlg d;
+	d.load( froml, tol, from->name(), to->name() );
+	int result = d.exec();
+	if( result == QDialog::Rejected )
+		return;
+
+	int slotA = d.getSlotA();
+	int slotB = d.getSlotB();
+
+	ExpressionLink *link = new ExpressionLink();
+	link->link( from, to, slotA, slotB );
+
+	m_scene->addItem( link );
+}
+
+void ExpressionEditor::onUnLinkItems()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+
+	for( int i = 0; i < l.count(); i++ )
+	{
+		ExpressionNode *node = dynamic_cast< ExpressionNode* >( l[ i ] );
+		if( node == NULL )
+			continue;
+
+		node->clearLinks();
+	}
+}
+
+void ExpressionEditor::onItemDblClicked( QTreeWidgetItem *item )
+{
+	QString name = item->text( 0 );
+
+	const ExpressionInfo *info = m_pvt->store.getInfo( name );
+
+	QString n = name;
+	n += " #";
+	n += QString::number( m_nodeCount );
+	m_nodeCount++;
+
+	ExpressionNode *node = new ExpressionNode( n, info->slotNames.count() );
+	node->setSlotNames( info->slotNames );
+	node->setVariable( info->variable );
+	node->setIsValue( info->value );
+	if( node->isValue() )
+	{
+		node->setValue( "Value" );
+	}
+	m_scene->addItem( node );
+}
+
+void ExpressionEditor::onChangeSlotCount()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+	ExpressionNode *node = static_cast< ExpressionNode* >( l[ 0 ] );
+	int oldc = node->slotCount();
+
+	int c = QInputDialog::getInt( this,
+								tr( "Change slot count" ),
+								tr( "Enter new slot count" ),
+								oldc,
+								1,
+								26 );
+
+	if( oldc == c )
+		return;
+
+	node->changeSlotCount( c );
+}
+
+void ExpressionEditor::onChangeValue()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+	ExpressionNode *node = static_cast< ExpressionNode* >( l[ 0 ] );
+
+	QString oldValue = node->getValue();
+
+	QString newValue = QInputDialog::getText( this,
+										tr( "Change value" ),
+										tr( "Enter new value" ),
+										QLineEdit::Normal,
+										oldValue );
+
+	if( newValue.isEmpty() )
+		return;
+	if( newValue == oldValue )
+		return;
+
+	node->setValue( newValue );
+}
+
+void ExpressionEditor::onSetRoot()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+	ExpressionNode *node = static_cast< ExpressionNode* >( l[ 0 ] );
+
+	if( m_pvt->m_root != NULL )
+		m_pvt->m_root->setRoot( false );
+
+	m_pvt->m_root = node;
+	node->setRoot( true );
+}
+
+void ExpressionEditor::onBuildExpression()
+{
+	if( m_pvt->m_root == NULL )
+	{
+		QMessageBox::information( this,
+									tr( "Building expression" ),
+									tr( "Failed to build expression: You must set a root node." ) );
+		return;
+	}
+
+	QString result = m_pvt->m_root->build();
+	QMessageBox::information( this,
+								tr( "Building expression" ),
+								tr( "The result is\n" ) + result  );
+}
+
+void ExpressionEditor::onSave()
+{
+	if( m_pvt->m_root != NULL )
+	{
+		m_result = m_pvt->m_root->build();
+	}
+
+	close();
+}
+
+void ExpressionEditor::onClear()
+{
+	m_scene->clear();
+	m_pvt->m_root = NULL;
+	m_nodeCount = 0;
+	m_selectionCount = 0;
+	m_result = "";
+}
+
+
+void ExpressionEditor::addExpression( const ExpressionInfo *info )
+{
+	QTreeWidgetItem *item = findTopLevelItem( info->category );
+	if( item == NULL )
+	{
+		item = new QTreeWidgetItem();
+		item->setText( 0, info->category );
+		m_ui.tree->addTopLevelItem( item );
+	}
+
+	QTreeWidgetItem *citem = new QTreeWidgetItem();
+	citem->setText( 0, info->name );
+	item->addChild( citem );
+}
+
+QTreeWidgetItem* ExpressionEditor::findTopLevelItem( const QString &text )
+{
+	int c = m_ui.tree->topLevelItemCount();
+	for( int i = 0; i < c; i++ )
+	{
+		QTreeWidgetItem *item = m_ui.tree->topLevelItem( i );
+		if( item->text( 0 ) == text )
+			return item;
+	}
+
+	return NULL;
+}
+

code/studio/src/plugins/gui_editor/expression_editor.h

@@ -0,0 +1,75 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#ifndef EXPRESSION_EDITOR
+#define EXPRESSION_EDITOR
+
+#include "ui_expression_editor.h"
+
+class QGraphicsScene;
+class QGraphicsItem;
+class ExpressionEditorPvt;
+class ExpressionInfo;
+
+class ExpressionEditor : public QMainWindow
+{
+	Q_OBJECT
+public:
+	ExpressionEditor( QWidget *parent = NULL );
+	~ExpressionEditor();
+
+	void load();
+	QString result() const{ return m_result; }
+
+Q_SIGNALS:
+	void closing();
+
+protected:
+	void contextMenuEvent( QContextMenuEvent *e );
+	void closeEvent( QCloseEvent *e );
+
+private Q_SLOTS:
+	void onDeleteSelection();
+	void onSelectionChanged();
+	void onLinkItems();
+	void onUnLinkItems();
+	void onItemDblClicked( QTreeWidgetItem *item );
+	void onChangeSlotCount();
+	void onChangeValue();
+	void onSetRoot();
+	void onBuildExpression();
+	void onSave();
+	void onClear();
+
+private:
+	void addExpression( const ExpressionInfo *info );
+	QTreeWidgetItem* findTopLevelItem( const QString &text );
+
+	Ui::ExpressionEditor m_ui;
+	QGraphicsScene *m_scene;
+
+	int m_selectionCount;
+	int m_nodeCount;
+
+	ExpressionEditorPvt *m_pvt;
+	QString m_result;
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expression_editor.ui

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExpressionEditor</class>
+ <widget class="QMainWindow" name="ExpressionEditor">
+  <property name="windowModality">
+   <enum>Qt::ApplicationModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Expression Editor</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QGridLayout" name="gridLayout_2">
+    <item row="0" column="0">
+     <widget class="QGraphicsView" name="view"/>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>21</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <widget class="QDockWidget" name="dockWidget">
+   <attribute name="dockWidgetArea">
+    <number>1</number>
+   </attribute>
+   <widget class="QWidget" name="dockWidgetContents">
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="0" column="0">
+      <widget class="QTreeWidget" name="tree">
+       <column>
+        <property name="text">
+         <string>Expressions</string>
+        </property>
+       </column>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

code/studio/src/plugins/gui_editor/expression_info.h

@@ -0,0 +1,41 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef EXPRESSION_INFO
+#define EXPRESSION_INFO
+
+#include <QString>
+#include <QStringList>
+
+struct ExpressionInfo
+{
+	QString name;
+	bool value;
+	QString category;
+	bool variable;
+	QStringList slotNames;
+
+	ExpressionInfo()
+	{
+		value = false;
+		variable = false;
+	}
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expression_link.cpp

@@ -0,0 +1,78 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "expression_link.h"
+#include "expression_node.h"
+#include <QGraphicsItem>
+#include <QPen>
+
+ExpressionLink::ExpressionLink( QGraphicsItem *parent ) :
+QGraphicsLineItem( parent )
+{
+	m_from = NULL;
+	m_to = NULL;
+}
+
+ExpressionLink::~ExpressionLink()
+{
+	unlink();
+}
+
+void ExpressionLink::link( ExpressionNode *from, ExpressionNode *to, int fromSlot, int toSlot )
+{
+	m_from = from;
+	m_to = to;
+	m_from->setLink( this, fromSlot );
+	m_to->setLink( this, toSlot );
+
+	m_fromSlot = fromSlot;
+	m_toSlot = toSlot;
+
+	nodeMoved();
+}
+
+void ExpressionLink::unlink()
+{
+	if( m_from == NULL )
+		return;
+
+	m_from->setLink( NULL, m_fromSlot );
+	m_to->setLink( NULL, m_toSlot );
+
+	m_from = NULL;
+	m_to = NULL;
+
+	delete this;
+}
+
+void ExpressionLink::nodeMoved()
+{
+	setLine( QLineF( m_from->slotPos( m_fromSlot ), m_to->slotPos( m_toSlot ) ) );
+}
+
+void ExpressionLink::paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget )
+{
+	QPen p;
+	p.setColor( Qt::black );
+	p.setWidth( 5 );
+	setPen( p );
+
+	QGraphicsLineItem::paint( painter, option, widget );
+}
+
+

code/studio/src/plugins/gui_editor/expression_link.h

@@ -0,0 +1,51 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef EXPRESSION_LINK
+#define EXPRESSION_LINK
+
+#include <QGraphicsItem>
+
+class ExpressionNode;
+
+class ExpressionLink : public QGraphicsLineItem
+{
+public:
+	ExpressionLink( QGraphicsItem *parent = NULL );
+	~ExpressionLink();
+
+	void link( ExpressionNode *from, ExpressionNode *to, int fromSlot, int toSlot );
+	void unlink();
+
+	void nodeMoved();
+
+	void paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget );
+
+	ExpressionNode* from() const{ return m_from; }
+	ExpressionNode* to() const{ return m_to; }
+
+private:
+	ExpressionNode *m_from;
+	ExpressionNode *m_to;
+
+	int m_fromSlot;
+	int m_toSlot;
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expression_loader.cpp

@@ -0,0 +1,220 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "expression_loader.h"
+#include "expression_info.h"
+
+#include <QFile>
+#include <QXmlStreamReader>
+
+class ExpressionLoaderPvt
+{
+public:
+
+	bool parseName()
+	{
+		QString text = reader.readElementText( QXmlStreamReader::ErrorOnUnexpectedElement );
+		if( reader.hasError() )
+			return false;
+
+		m_info->name = text;
+
+		return true;
+	}
+
+	bool parseValue()
+	{
+		QString text = reader.readElementText( QXmlStreamReader::ErrorOnUnexpectedElement );
+		if( reader.hasError() )
+			return false;
+
+		if( text.toLower() == "true" )
+			m_info->value = true;
+		else
+			m_info->value = false;
+
+		return true;
+	}
+
+	bool parseCategory()
+	{
+		QString text = reader.readElementText( QXmlStreamReader::ErrorOnUnexpectedElement );
+		if( reader.hasError() )
+			return false;
+
+		m_info->category = text;
+
+		return true;
+	}
+
+	bool parseVariable()
+	{
+		QString text = reader.readElementText( QXmlStreamReader::ErrorOnUnexpectedElement );
+		if( reader.hasError() )
+			return false;
+
+		if( text.toLower() == "true" )
+			m_info->variable = true;
+		else
+			m_info->variable = false;
+
+		return true;
+	}
+
+	bool parseSlot()
+	{
+		QString text = reader.readElementText( QXmlStreamReader::ErrorOnUnexpectedElement );
+		if( reader.hasError() )
+			return false;
+
+		m_info->slotNames.push_back( text );
+
+		return true;
+	}
+
+	bool parseSlots()
+	{
+		bool error = false;
+
+		while( !reader.atEnd() )
+		{
+			reader.readNext();
+
+			if( reader.isStartElement() )
+			{
+				QString name = reader.name().toString();
+				if( name == "slot" )
+					error = !parseSlot();
+			}
+			else
+			if( reader.isEndElement() )
+			{
+				if( reader.name() == "slots" )
+					break;
+			}
+		}
+
+		if( reader.atEnd() )
+			return false;
+
+		return true;
+	}
+
+	bool load( QFile *f )
+	{
+		reader.clear();
+		reader.setDevice( f );
+
+		bool error = false;
+
+		// start of document
+		reader.readNext();
+		if( reader.atEnd() )
+			return false;
+
+		// root node
+		reader.readNext();
+		if( reader.atEnd() )
+			return false;
+
+		if( reader.isStartElement() )
+		{
+			// Not an expression file?
+			if( reader.name() != "expression" )
+				return false;
+		}
+
+		while( !reader.atEnd() )
+		{
+			reader.readNext();
+
+			if( reader.isStartElement() )
+			{
+				QString name = reader.name().toString();
+
+				if( name == "name" )
+					error = !parseName();
+				else
+				if( name == "value" )
+					error = !parseValue();
+				else
+				if( name == "category" )
+					error = !parseCategory();
+				else
+				if( name == "variable" )
+					error = !parseVariable();
+				else
+				if( name == "slots" )
+					error = !parseSlots();
+			}
+
+			if( error )
+				break;
+		}
+
+		if( error || reader.hasError() )
+		{
+			return false;
+		}
+
+		return true;
+	}
+
+	void setInfo( ExpressionInfo *info ){ m_info = info; }
+
+private:
+	QXmlStreamReader reader;
+	ExpressionInfo *m_info;
+};
+
+ExpressionLoader::ExpressionLoader()
+{
+	m_pvt = new ExpressionLoaderPvt;
+}
+
+ExpressionLoader::~ExpressionLoader()
+{
+	delete m_pvt;
+	m_pvt = NULL;
+}
+
+ExpressionInfo* ExpressionLoader::load( const QString &filename )
+{
+	ExpressionInfo *info = NULL;
+	bool ok = false;
+
+	QFile f( filename );
+	if( !f.open( QIODevice::ReadOnly | QIODevice::Text ) )
+		return NULL;
+
+	info = new ExpressionInfo();
+	m_pvt->setInfo( info );
+	ok = m_pvt->load( &f );
+
+	f.close();
+
+	if( !ok )
+	{
+		delete info;
+		info = NULL;
+	}
+
+	return info;
+}
+
+

code/studio/src/plugins/gui_editor/expression_loader.h

@@ -0,0 +1,39 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef EXPRESSION_LOADER
+#define EXPRESSION_LOADER
+
+struct ExpressionInfo;
+class QString;
+class ExpressionLoaderPvt;
+
+class ExpressionLoader
+{
+public:
+	ExpressionLoader();
+	~ExpressionLoader();
+
+	ExpressionInfo* load( const QString &filename );
+
+private:
+	ExpressionLoaderPvt *m_pvt;
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expression_node.cpp

@@ -0,0 +1,410 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#include "expression_node.h"
+#include "expression_link.h"
+#include <QPainter>
+#include <QStyleOption>
+
+struct NodeSlotInfo
+{
+	// top-left
+	QPoint tl;
+
+	// text top-left
+	QPoint ttl;
+
+	// The text displayed
+	QString text;
+
+	// text width
+	qreal tw;
+
+	// text height
+	qreal th;
+
+	// width-height of the box
+	qreal wh;
+};
+
+class NodeSlot
+{
+public:
+	NodeSlot( const NodeSlotInfo &info )
+	{
+		m_info = info;
+	}
+
+	~NodeSlot()
+	{
+	}
+
+	QPointF pos() const{
+		QPointF p;		
+		p.setX( m_info.tl.x() + m_info.wh / 2.0 );
+		p.setY( m_info.tl.y() + m_info.wh / 2.0 );
+
+		return p;
+	}
+
+	void paint( QPainter *painter )
+	{
+		QBrush boxBrush;
+		QPen p;
+		
+		boxBrush.setColor( Qt::black );
+		boxBrush.setStyle( Qt::SolidPattern );
+		p.setColor( Qt::black );
+		painter->setPen( p );
+
+		QRectF box;
+		QRectF tbox;
+		
+		box.setTopLeft( m_info.tl );
+		box.setHeight( m_info.wh );
+		box.setWidth( m_info.wh );
+
+		painter->fillRect( box, boxBrush );
+
+		tbox.setTopLeft( m_info.ttl );
+		tbox.setHeight( m_info.th );
+		tbox.setWidth( m_info.tw );
+
+		painter->drawText( tbox, Qt::AlignRight, m_info.text );
+	}
+
+	QString text() const{ return m_info.text; }
+	void setText( const QString &text ){ m_info.text = text; }
+
+private:
+	NodeSlotInfo m_info;
+};
+
+
+
+ExpressionNode::ExpressionNode( const QString &name, int slotCount, QGraphicsItem *parent ) :
+QGraphicsItem( parent )
+{
+	setFlags( QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemSendsScenePositionChanges );
+
+	m_w = 100;
+	m_h = 100;
+	m_hh = 20.0;
+
+	m_variable = false;
+	m_isValue = false;
+	m_isRoot = false;
+
+	m_name = name;
+
+	if( slotCount > 3 )
+		m_h = m_h + 20.0 * ( slotCount - 3 );
+
+	createSlots( slotCount );
+}
+
+ExpressionNode::~ExpressionNode()
+{
+	clearLinks();
+	clearSlots();
+}
+
+QRectF ExpressionNode::boundingRect() const
+{
+	return QRectF( 0, 0, m_w, m_h );
+}
+
+void ExpressionNode::paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget )
+{
+	QBrush br;
+	QBrush boxBrush;
+	QPen p;
+	QColor c;
+
+	QRectF rect = boundingRect();
+	QRectF header = rect;
+	header.setHeight( m_hh );
+
+	// Draw filled rectangle, header
+	if( !m_isRoot )
+	{
+		c.setRed( 44 );
+		c.setGreen( 169 );
+		c.setBlue( 232 );
+	}
+	else
+	{
+		c.setRed( 255 );
+		c.setGreen( 0 );
+		c.setBlue( 0 );
+	}
+	br.setColor( c );
+	br.setStyle( Qt::SolidPattern );
+	p.setColor( c );
+	painter->setPen( p );
+	painter->fillRect( header, br );
+
+	// Draw header text
+	p.setColor( Qt::black );
+	painter->setPen( p );
+	painter->drawText( header, Qt::AlignCenter, m_name );
+
+	// Draw value if applicable
+	if( m_isValue )
+	{
+		QRectF vbox;
+		vbox.setTopLeft( QPoint( 0.0, 20.0 ) );
+		vbox.setWidth( header.width() );
+		vbox.setHeight( header.height() );
+		QPen vpen;
+		vpen.setColor( Qt::red );
+		painter->setPen( vpen );
+		painter->drawText( vbox, Qt::AlignCenter, m_value );
+		painter->setPen( p );
+	}
+
+	if( option->state & QStyle::State_Selected )
+	{
+		p.setStyle( Qt::DotLine );
+		p.setColor( Qt::red );
+	}
+
+	// Draw outline of the entire thing + header
+	painter->setPen( p );
+	painter->drawRect( rect );
+	painter->drawRect( header );
+
+	paintSlots( painter );
+}
+
+
+QPointF ExpressionNode::slotPos( int slot ) const
+{
+	const NodeSlot *s = m_slots[ slot ];
+	QPointF sp = s->pos();
+	QPointF mp = pos();
+
+	mp += sp;
+	return mp;
+}
+
+void ExpressionNode::changeSlotCount( int count )
+{
+	clearSlots();
+	clearLinks();
+	m_links.clear();
+
+	if( count <= 3 )
+		m_h = 100.0;
+	else
+		m_h = 100.0 + 20.0 * ( count - 3 );
+
+	createSlots( count );
+
+	update();
+}
+
+void ExpressionNode::clearSlots()
+{
+	qDeleteAll( m_slots );
+	m_slots.clear();
+}
+
+bool ExpressionNode::slotEmpty( int slot ) const
+{
+	if( m_links[ 0 ] == NULL )
+		return true;
+	else
+		return false;
+}
+
+void ExpressionNode::getSlots( QList< SlotInfo > &l )
+{
+	SlotInfo info;
+
+	for( int i = 0; i < m_slots.count(); i++ )
+	{
+		if( m_links[ i ] != NULL )
+			continue;
+
+		info.name = m_slots[ i ]->text();
+		info.slot = i;
+		l.push_back( info );
+	}
+}
+
+void ExpressionNode::setLink( ExpressionLink *link, int slot )
+{
+	m_links[ slot ] = link;
+}
+
+ExpressionLink* ExpressionNode::link( int slot ) const
+{
+	return m_links[ slot ];
+}
+
+void ExpressionNode::setSlotNames( const QList< QString > &l )
+{
+	int c = l.count();
+	for( int i = 0; i < c; i++ )
+	{
+		// "Out" slot is at position 0, so set the names with an offset of 1
+		m_slots[ i + 1 ]->setText( l[ i ] );
+	}
+}
+
+void ExpressionNode::setValue( const QString &value )
+{
+	m_value = value;
+
+	int c = m_value.count();
+	if( c < 15 )
+		m_w = 100.0;
+	else
+		m_w = m_w + ( 100.0 / 15.0 ) * ( c - 15.0 );
+
+	update();
+}
+
+void ExpressionNode::setRoot( bool b )
+{
+	m_isRoot = b;
+	update();
+}
+
+QString ExpressionNode::build() const
+{
+	QString result;
+
+	if( isValue() )
+		return m_value;
+
+	QStringList l = m_name.split( ' ' );
+	result = l[ 0 ];
+	result += "( ";
+
+	int c = m_links.count();
+	for( int i = 1; i < c; i++ )
+	{
+		ExpressionLink *link = m_links[ i ];
+		if( link == NULL )
+			continue;
+
+		ExpressionNode *node = NULL;
+
+		if( link->from() == this )
+			node = link->to();
+		else
+			node = link->from();
+
+		result += node->build();
+
+		if( i != ( c - 1 ) )
+			result += ", ";
+	}
+
+	result += " )";
+	return result;
+}
+
+QVariant ExpressionNode::itemChange( GraphicsItemChange change, const QVariant &value )
+{
+	if( change == ItemScenePositionHasChanged )
+	{
+		onNodeMove();
+	}
+
+	return QGraphicsItem::itemChange( change, value );
+}
+
+void ExpressionNode::onNodeMove()
+{
+	for( int i = 0; i < m_links.count(); i++ )
+	{
+		ExpressionLink *link = m_links[ i ];
+		if( link == NULL )
+			continue;
+
+		link->nodeMoved();
+	}
+}
+
+void ExpressionNode::createSlots( int count)
+{
+	// Out nodes
+	m_links.push_back( NULL );
+
+	for( int i = 0; i < count; i++ )
+		m_links.push_back( NULL );
+	
+	// First create the "Out" slot
+	NodeSlotInfo info;
+	info.tw = 25.0;
+	info.th = 12.0;
+	info.wh = 10.0;
+
+	qreal x = 0.0;
+	qreal y = m_h * 0.5;
+	qreal tx = info.wh;
+	qreal ty = m_h * 0.5 - 2;
+
+	info.tl = QPoint( x, y );
+	info.ttl = QPoint( tx, ty );
+	info.text = "Out";
+
+	m_slots.push_back( new NodeSlot( info ) );
+
+	// Then the rest of them
+	for( int i = 0; i < count; i++ )
+	{
+		x = m_w - info.wh;
+		y = 30 + i * 20.0;
+		tx = x - 5 - info.tw;
+		ty = y - 2;
+
+		info.tl = QPoint( x, y );
+		info.ttl = QPoint( tx, ty );
+		info.text = QString( 'A' + i );
+
+		m_slots.push_back( new NodeSlot( info ) );
+	}
+}
+
+void ExpressionNode::paintSlots( QPainter *painter )
+{
+	for( int i = 0; i < m_slots.count(); i++ )
+	{
+		NodeSlot *slot = m_slots[ i ];
+		slot->paint( painter );
+	}
+}
+
+
+void ExpressionNode::clearLinks()
+{
+	for( int i = 0; i < m_links.count(); i++ )
+	{
+		ExpressionLink *link = m_links[ i ];
+		if( link == NULL )
+			continue;
+
+		link->unlink();
+	}
+}
+

code/studio/src/plugins/gui_editor/expression_node.h

@@ -0,0 +1,95 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#ifndef EXPRESSION_NODE
+#define EXPRESSION_NODE
+
+#include <QGraphicsItem>
+#include <QList>
+#include "expr_slot_info.h"
+
+class ExpressionLink;
+class NodeSlot;
+
+class ExpressionNode : public QGraphicsItem
+{
+public:
+	ExpressionNode( const QString &name, int slotCount = 3, QGraphicsItem *parent = NULL );
+	~ExpressionNode();
+
+	QRectF boundingRect() const;
+	void paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget );
+
+	void setLink( ExpressionLink *link, int slot );
+	ExpressionLink* link( int slot ) const;
+
+	QPointF slotPos( int slot ) const;
+
+	int slotCount() const{ return m_slots.count(); }
+	void changeSlotCount( int count );
+	void clearSlots();
+
+	bool slotEmpty( int slot ) const;
+
+	void getSlots( QList< SlotInfo > &l );
+
+	void clearLinks();
+
+	QString name() const{ return m_name; }
+
+	void setSlotNames( const QList< QString > &l );
+
+	void setVariable( bool b ){ m_variable = b; }
+	bool variable() const{ return m_variable; }
+
+	void setValue( const QString &value );
+	QString getValue() const{ return m_value; }
+
+	bool isValue() const{ return m_isValue; }
+	void setIsValue( bool b ){ m_isValue = b; }
+	void setRoot( bool b );
+
+	QString build() const;
+
+protected:
+	QVariant itemChange( GraphicsItemChange change, const QVariant &value );
+
+private:
+	void onNodeMove();
+	void createSlots( int count = 3 );
+	void paintSlots( QPainter *painter );
+
+	qreal m_w; // node width
+	qreal m_h; // node height
+	qreal m_hh; // header height
+
+	QList< NodeSlot* > m_slots;
+	QList< ExpressionLink* > m_links;
+
+	QString m_name;
+
+	bool m_variable;
+
+	QString m_value;
+	bool m_isValue;
+	bool m_isRoot;
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expression_store.cpp

@@ -0,0 +1,105 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "expression_store.h"
+#include "expression_info.h"
+#include "expression_loader.h"
+#include <QMap>
+#include <QDir>
+
+class ExpressionStorePvt
+{
+public:
+
+	~ExpressionStorePvt()
+	{
+		qDeleteAll( expressions );
+		expressions.clear();
+	}
+
+
+	QMap< QString, ExpressionInfo* > expressions;
+};
+
+ExpressionStore::ExpressionStore()
+{
+	m_pvt = new ExpressionStorePvt();
+}
+
+ExpressionStore::~ExpressionStore()
+{
+	delete m_pvt;
+	m_pvt = NULL;
+}
+
+
+bool ExpressionStore::load()
+{
+	QDir d( "expressions" );
+	if( !d.exists() )
+		return false;
+
+	QFileInfoList l = d.entryInfoList();
+	QListIterator< QFileInfo > itr( l );
+	if( !itr.hasNext() )
+		return false;
+
+	ExpressionLoader loader;
+
+	while( itr.hasNext() )
+	{
+		const QFileInfo &info = itr.next();
+		if( !info.isFile() )
+			continue;
+
+		if( info.suffix() != "xml" )
+			continue;
+
+		ExpressionInfo *expr = loader.load( info.absoluteFilePath() );
+		if( expr == NULL )
+			continue;
+
+		m_pvt->expressions[ expr->name ] = expr;
+	}
+
+	return false;
+}
+
+void ExpressionStore::getExpressions( QList< const ExpressionInfo* > &l ) const
+{
+	l.clear();
+
+	QMap< QString, ExpressionInfo* >::const_iterator itr = m_pvt->expressions.constBegin();
+	while( itr != m_pvt->expressions.constEnd() )
+	{
+		l.push_back( itr.value() );
+		++itr;
+	}
+}
+
+const ExpressionInfo* ExpressionStore::getInfo( const QString &name )
+{
+	QMap< QString, ExpressionInfo* >::const_iterator itr = m_pvt->expressions.find( name );
+	if( itr == m_pvt->expressions.end() )
+		return NULL;
+	else
+		return itr.value();
+}
+
+
+

code/studio/src/plugins/gui_editor/expression_store.h

@@ -0,0 +1,46 @@
+// Ryzom Core Studio - GUI Editor Plugin
+//
+// Copyright (C) 2014 Laszlo Kis-Adam
+// Copyright (C) 2010 Ryzom Core <http://ryzomcore.org/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef EXPRESSION_STORE
+#define EXPRESSION_STORE
+
+#include <QString>
+#include <QList>
+#include "expression_info.h"
+
+//struct ExpressionInfo;
+class ExpressionStorePvt;
+
+class ExpressionStore
+{
+public:
+	ExpressionStore();
+	~ExpressionStore();
+
+	bool load();
+
+	void getExpressions( QList< const ExpressionInfo* > &l ) const;
+
+	const ExpressionInfo* getInfo( const QString &name );
+
+private:
+	ExpressionStorePvt *m_pvt;
+};
+
+#endif
+

code/studio/src/plugins/gui_editor/expressions/add.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Mathematical</category>
+<name>add</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/and.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Logical</category>
+<name>and</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/div.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Mathematical</category>
+<name>div</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/eq.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Logical</category>
+<name>eq</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/ifthenelse.xml

@@ -0,0 +1,10 @@
+<expression>
+<category>Logical</category>
+<name>ifthenelse</name>
+<variable>false</variable>
+<slots>
+<slot>if</slot>
+<slot>then</slot>
+<slot>else</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/mul.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Mathematical</category>
+<name>mul</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/ne.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Logical</category>
+<name>ne</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/not.xml

@@ -0,0 +1,8 @@
+<expression>
+<category>Logical</category>
+<name>not</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/or.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Logical</category>
+<name>or</name>
+<variable>true</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/sub.xml

@@ -0,0 +1,9 @@
+<expression>
+<category>Mathematical</category>
+<name>sub</name>
+<variable>false</variable>
+<slots>
+<slot>A</slot>
+<slot>B</slot>
+</slots>
+</expression>

code/studio/src/plugins/gui_editor/expressions/value.xml

@@ -0,0 +1,6 @@
+<expression>
+<category>Value</category>
+<name>value</name>
+<value>true</value>
+<variable>false</variable>
+</expression>

code/studio/src/plugins/gui_editor/gui_editor_window.cpp

@@ -44,7 +44,6 @@
 #include "editor_selection_watcher.h"
 #include "editor_message_processor.h"
 #include "add_widget_widget.h"
-#include "texture_chooser.h"
 
 namespace GUIEditor
 {
@@ -71,8 +70,6 @@ namespace GUIEditor
 
 		widgetInfoTree = new CWidgetInfoTree;
 
-		tc = new TextureChooser();
-
 		createMenus();
 		readSettings();
 
@@ -118,9 +115,6 @@ namespace GUIEditor
 
 		removeMenus();
 
-		delete tc;
-		tc = NULL;
-
 		delete messageProcessor;
 		messageProcessor = NULL;
 
@@ -359,12 +353,6 @@ namespace GUIEditor
 		GUICtrl->show();
 	}
 
-	void GUIEditorWindow::onTCClicked()
-	{
-		tc->load();
-		tc->exec();
-	}
-
 	void GUIEditorWindow::createMenus()
 	{
 		Core::MenuManager *mm = Core::ICore::instance()->menuManager();
@@ -411,10 +399,6 @@ namespace GUIEditor
 			connect( a, SIGNAL( triggered( bool ) ), this, SLOT( onAddWidgetClicked() ) );
 			m->addAction( a );
 
-			a = new QAction( "Texture Chooser", this );
-			connect( a, SIGNAL( triggered( bool ) ), this, SLOT( onTCClicked() ) );
-			m->addAction( a );
-
 			menu = m;
 		}
 	}

code/studio/src/plugins/gui_editor/gui_editor_window.h

@@ -25,11 +25,8 @@
 #include "property_browser_ctrl.h"
 
 class QtTreePropertyBrowser;
-
 class QMenu;
 
-class TextureChooser;
-
 namespace GUIEditor
 {
 
@@ -67,8 +64,6 @@ private Q_SLOTS:
 		void onGUILoaded();
 		void onAddWidgetClicked();
 		void onTreeChanged();
-		void onTCClicked();
-
 
 protected:
 		void hideEvent( QHideEvent *evnt );
@@ -101,8 +96,6 @@ private:
 		QString currentProjectFile;
 
 		QMenu *menu;
-
-		TextureChooser *tc;
 	};
 
 }

code/studio/src/plugins/gui_editor/link_editor.cpp

@@ -18,20 +18,49 @@
 #include "link_editor.h"
 #include "nel/gui/interface_group.h"
 #include "nel/gui/widget_manager.h"
+#include "expression_editor.h"
+#include <QMenu>
 
 namespace GUIEditor
 {
+	class LinkEditorPvt
+	{
+	public:
+
+		LinkEditorPvt()
+		{
+			ee = new ExpressionEditor();
+			ee->load();
+		}
+
+		~LinkEditorPvt()
+		{
+			delete ee;
+			ee = NULL;
+		}
+
+		ExpressionEditor *ee;
+	};
+
+
 	LinkEditor::LinkEditor( QWidget *parent ) :
 	QWidget( parent )
 	{
 		setupUi( this );
 		setup();
+
+		m_pvt = new LinkEditorPvt();
+
 		connect( okButton, SIGNAL( clicked( bool ) ), this, SLOT( onOKButtonClicked() ) );
 		connect( cancelButton, SIGNAL( clicked( bool ) ), this, SLOT( hide() ) );
+		connect( expressionEdit, SIGNAL( customContextMenuRequested( const QPoint& ) ), this, SLOT( onTextEditContextMenu( const QPoint& ) ) );
+		connect( m_pvt->ee, SIGNAL( closing() ), this, SLOT( onEEClosing() ) );
 	}
 
 	LinkEditor::~LinkEditor()
 	{
+		delete m_pvt;
+		m_pvt = NULL;
 	}
 
 	void LinkEditor::setup()
@@ -89,4 +118,23 @@ namespace GUIEditor
 
 		hide();
 	}
+
+	void LinkEditor::onTextEditContextMenu( const QPoint &pos )
+	{
+		QMenu *menu = expressionEdit->createStandardContextMenu();
+		QAction *a = menu->addAction( "Expression Editor" );
+		connect( a, SIGNAL( triggered() ), this, SLOT( onEE() ) );
+
+		menu->exec( mapToGlobal( pos ) );
+	}
+
+	void LinkEditor::onEE()
+	{
+		m_pvt->ee->show();
+	}
+
+	void LinkEditor::onEEClosing()
+	{
+		expressionEdit->setPlainText( m_pvt->ee->result() );
+	}
 }

code/studio/src/plugins/gui_editor/link_editor.h

@@ -23,6 +23,8 @@
 
 namespace GUIEditor
 {
+	class LinkEditorPvt;
+
 	class LinkEditor : public QWidget, public Ui::LinkEditor
 	{
 		Q_OBJECT
@@ -38,9 +40,13 @@ namespace GUIEditor
 		
 	private Q_SLOTS:
 		void onOKButtonClicked();
+		void onTextEditContextMenu( const QPoint &pos );
+		void onEE();
+		void onEEClosing();
 
 	private:
 		uint32 currentLinkId;
+		LinkEditorPvt *m_pvt;
 	};
 }
 

code/studio/src/plugins/gui_editor/link_editor.ui

@@ -26,6 +26,9 @@
    </item>
    <item row="1" column="0" colspan="3">
     <widget class="QPlainTextEdit" name="expressionEdit">
+     <property name="contextMenuPolicy">
+      <enum>Qt::CustomContextMenu</enum>
+     </property>
      <property name="plainText">
       <string/>
      </property>