// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010  Winch Gate Property Limited
//
// 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 RZ_GROUP_MENU_H
#define RZ_GROUP_MENU_H

#include "interface_group.h"
#include "group_modal.h"
#include "view_text.h"

#include "ctrl_text_button.h"

class CViewBitmap;
class CGroupMenu;
class CGroupList;
class CCtrlScroll;


/**
 * CViewTextMenu is an element of a sub menu
 * \author Matthieu 'TrapII' Besson
 * \author Nevrax France
 * \date 2002
 */
class CViewTextMenu : public CViewText
{
public:

	CViewTextMenu(const TCtorParam &param) : CViewText(param)
	{
		_Grayed = false;
		_Checked = false;
		_Checkable = false;
		_CheckBox = NULL;
		Over = false;
	}

	bool getGrayed() const;
	void setGrayed (bool g);
	bool getChecked() const { return _Checked; }
	void setChecked(bool c);
	bool getCheckable() const { return _Checkable; }
	void setCheckable(bool c);
	void setCheckBox(CViewBitmap *checkBox) { _CheckBox = checkBox; }
	CViewBitmap * getCheckBox() const { return _CheckBox; }
	bool getFormatted () const { return getMultiLine (); }

	virtual sint32 getAlpha() const;
	virtual void setAlpha (sint32 a);

	REFLECT_EXPORT_START(CViewTextMenu, CViewText)
		REFLECT_BOOL("grayed", getGrayed, setGrayed);
		REFLECT_BOOL("checked", getChecked, setChecked);
	REFLECT_EXPORT_END

public:

	bool			Over;
	NLMISC::CRGBA	OldColor;
	NLMISC::CRGBA	OldShadowColor;
	NLMISC::CRGBA	OldColorOver;
	NLMISC::CRGBA	OldShadowColorOver;
	NLMISC::CRGBA	OldColorGrayed;
	NLMISC::CRGBA	OldShadowColorGrayed;

private:
	CViewBitmap *_CheckBox;
	bool		_Grayed;
	bool		_Checked;
	bool		_Checkable;
};

/**
 * CGroupSubMenu describe an element of a contextual menu (contains text lines and sub menu)
 * \author Matthieu 'TrapII' Besson
 * \author Nevrax France
 * \date 2002
 */

class CGroupSubMenu : public CGroupFrame
{
public:

	CGroupSubMenu(const TCtorParam &param);
	virtual ~CGroupSubMenu();

	virtual bool parse (xmlNodePtr cur, CInterfaceGroup *parent=NULL);

	virtual void checkCoords();

	virtual void updateCoords ();

	virtual void draw ();

	virtual bool handleEvent (const CEventDescriptor &eventDesc);

	virtual CInterfaceElement* getElement (const std::string &id);

	// retrieve the index of a line from its id (-1 if not found)
	sint getLineFromId(const std::string &id);

	CViewTextMenu* addLine (const ucstring &name, const std::string &ah,
							const std::string &params, const std::string &id="",
							const std::string &cond = std::string(), const std::string &texture="",
							bool checkable = false, bool checked = false, bool formatted = false
						   );
	CViewTextMenu* addLineAtIndex(uint index, const ucstring &name, const std::string &ah,
								  const std::string &params, const std::string &id="",
								  const std::string &cond = std::string(), const std::string &texture="",
								  bool checkable = false, bool checked = false, bool formatted = false
								 );
	void addSeparator(const std::string &id = "");
	void addSeparatorAtIndex(uint index, const std::string &id = "");


	uint	getNumLine() const { return (uint)_Lines.size(); }
	void	removeLine(uint index);
	const std::string getActionHandler(uint lineIndex) const;
	const std::string getActionHandlerParam(uint lineIndex) const;

	void	openSubMenu (sint32 nb);

	void	hideSubMenus ();

	// reset all entries of the sub menu
	void	reset();

	virtual void setActive (bool state);

	// Tell if the line is a separator or not
	bool isSeparator (uint i) const;

	/** Set a user defined group at the given line
	  * 'ownership' tells whether this menu should remove the group when it is deleted
	  * Setting a user group on a line with a separator is illegal
	  */
	void			 setUserGroupRight(uint line, CInterfaceGroup *group, bool ownership);
	CInterfaceGroup *getUserGroupRight(uint line) const;
	//
	void			 setUserGroupLeft(uint line, CInterfaceGroup *group, bool ownership);
	CInterfaceGroup *getUserGroupLeft(uint line) const;

	void removeAllUserGroups();

	uint getNumLines() const { return (uint)_Lines.size(); }

	// return pointer to submenu or NULL if there's none
	CGroupSubMenu *getSubMenu(uint index) const;
	void setSubMenu(uint index, CGroupSubMenu *sub);

	// if a menu isn't selectable, can't click on it, and there's no selection when the mouse is over it (but can click on its widgets, such as a usergroup)
	void setSelectable(uint lineIndex, bool selectable);
	bool getSelectable(uint lineIndex) const;

	// Gray a line.
	void setGrayedLine(uint line,  bool g);

	// Hide a line.
	void setHiddenLine(uint line,  bool h);

	// Max Visible Line (-1 == no limit)
	void setMaxVisibleLine(sint32 mvl);
	sint32 getMaxVisibleLine() { return _MaxVisibleLine; }

	// Get the Line Id (not the full Id)
	const std::string &getLineId(uint index);

	int luaGetNumLine(CLuaState &ls);
	int luaGetSubMenu(CLuaState &ls);
	int luaAddSubMenu(CLuaState &ls);
	int luaGetLineId(CLuaState &ls);
	int luaGetLineFromId(CLuaState &ls);
	int luaIsSeparator(CLuaState &ls);
	int luaAddLine(CLuaState &ls);
	int luaAddLineAtIndex(CLuaState &ls);
	int luaAddSeparator(CLuaState &ls);
	int luaAddSeparatorAtIndex(CLuaState &ls);
	int luaRemoveLine(CLuaState &ls);
	int luaSetUserGroupRight(CLuaState &ls);
	int luaGetUserGroupRight(CLuaState &ls);
	int luaSetUserGroupLeft(CLuaState &ls);
	int luaGetUserGroupLeft(CLuaState &ls);
	int luaReset(CLuaState &ls);
	int luaSetMaxVisibleLine(CLuaState &ls);
	//
	REFLECT_EXPORT_START(CGroupSubMenu, CGroupFrame)
		REFLECT_LUA_METHOD("getNumLine", luaGetNumLine);
		REFLECT_LUA_METHOD("getLineId", luaGetLineId); // return the id of a line from its index
		REFLECT_LUA_METHOD("getLineFromId", luaGetLineFromId); // return -1 if line with id is not found
		REFLECT_LUA_METHOD("getSubMenu", luaGetSubMenu);
		REFLECT_LUA_METHOD("addSubMenu", luaAddSubMenu);
		REFLECT_LUA_METHOD("isSeparator", luaIsSeparator);
		REFLECT_LUA_METHOD("addLine", luaAddLine); // name, ah, ah_params, id
		REFLECT_LUA_METHOD("addLineAtIndex", luaAddLineAtIndex); // index, name, ah, ah_params, id
		REFLECT_LUA_METHOD("addSeparator", luaAddSeparator);
		REFLECT_LUA_METHOD("addSeparatorAtIndex", luaAddSeparatorAtIndex);
		REFLECT_LUA_METHOD("removeLine", luaRemoveLine);
		REFLECT_LUA_METHOD("reset", luaReset);
		REFLECT_LUA_METHOD("setUserGroupRight", luaSetUserGroupRight); // line, group ptr
		REFLECT_LUA_METHOD("getUserGroupRight", luaGetUserGroupRight); // line
		REFLECT_LUA_METHOD("setUserGroupLeft", luaSetUserGroupLeft); // line, group ptr
		REFLECT_LUA_METHOD("getUserGroupLeft", luaGetUserGroupLeft);// line
		REFLECT_LUA_METHOD("setMaxVisibleLine", luaSetMaxVisibleLine);
	REFLECT_EXPORT_END

protected:

	struct SSubMenuEntry
	{
		CViewTextMenu	*ViewText; // Backup of the children that are in grouplist
		CInterfaceGroup *Separator;
		std::string		AHName;
		std::string		AHParams;
		std::string		Id;
		std::string     Cond;      // condition to know if the entry is grayed
		CViewBitmap     *CheckBox;
		CViewBitmap     *RightArrow;
		CInterfaceGroup *UserGroupRight; // not for separator, inserted before checkbox & submenu arrow
		CInterfaceGroup *UserGroupLeft;
		bool			 UserGroupRightOwnership;
		bool			 UserGroupLeftOwnership;
		bool			 Selectable;
		sint32			HReal;		// max H of the view text and the other user group
		sint32			TextDY;		// Y of the view text to set
		SSubMenuEntry()
		{
			ViewText = NULL;
			Separator = NULL;
			CheckBox = NULL;
			RightArrow = NULL;
			UserGroupRight = NULL;
			UserGroupLeft = NULL;
			UserGroupRightOwnership = false;
			Selectable = true;
			HReal= 0;
			TextDY= 0;
		}
	};

protected:

	CGroupList						*_GroupList;
	CCtrlScroll						*_ScrollBar;
	CViewBitmap						*_SelectionView;
	std::vector<SSubMenuEntry>		_Lines;
	std::vector<CGroupSubMenu*>		_SubMenus;

	CGroupMenu						*_GroupMenu; // Master parent
	sint32							_Selected;

	sint32							_MaxVisibleLine; // -1 == no limit

	friend class CGroupMenu;
private:
	/** Clone this menu, and set its new father
	  * If appendToMenu is NULL, the menu is just copied
	  * otherwise, no copy is made, but this menu entries are appended to the already created 'appendMenu' menu.
	  * NB : user groups are not duplicated
	  */
	CGroupSubMenu *cloneMenu(CGroupSubMenu *appendToMenu, CGroupMenu *newFather, CInterfaceGroup *initGroup = NULL) const;
	void           initOptions(CInterfaceGroup *parent);
	CViewBitmap	   *createCheckBox(bool checked);
	CViewBitmap	   *createRightArrow(CInterfaceElement *parentPos, bool center);
};

/**
 * class describing a menu composed of one or more CGroupListSubMenu
 * \author Matthieu 'TrapII' Besson
 * \author Nevrax France
 * \date 2002
 */
class CGroupMenu : public CGroupModal
{

public:

	CGroupMenu(const TCtorParam &param);
	virtual ~CGroupMenu();

	TCaseMode getCaseMode() { return _CaseMode; }

	virtual bool parse (xmlNodePtr cur, CInterfaceGroup *parentGroup);

	virtual void draw ();

	void recurseDraw(CGroupSubMenu *pSubMenu);

	virtual bool handleEvent (const CEventDescriptor &eventDesc);

	virtual CInterfaceElement* getElement (const std::string &id);

	virtual void setActive (bool state);

	virtual bool isWindowUnder (sint32 x, sint32 y);

	// add line with a string, for backward compatibility
	void addLine (const std::string &name, const std::string &ah, const std::string &params,
		          const std::string &id = std::string(),
				  const std::string &cond = std::string(), const std::string &texture="",
		          bool checkable = false, bool checked = false);
	uint getNumLine() const;
	void deleteLine(uint index);
	const std::string getActionHandler(uint lineIndex) const;
	const std::string getActionHandlerParam(uint lineIndex) const;


	void addLine (const ucstring &name, const std::string &ah = "", const std::string &params = "",
				  const std::string &id = std::string(),
				  const std::string &cond = std::string(), const std::string &texture="",
				  bool checkable = false, bool checked = false
		         );
	void addLineAtIndex (uint index, const ucstring &name, const std::string &ah = "", const std::string &params = "",
						 const std::string &id = std::string(),
						 const std::string &cond = std::string(), const std::string &texture="",
						 bool checkable = false, bool checked = false
		                );
	void setUserGroupRight(uint line, CInterfaceGroup *gr, bool ownerShip = true);
	void setUserGroupLeft(uint line, CInterfaceGroup *gr, bool ownerShip = true);

	// clear all sub menus
	void reset ();

	// set the minW of the RootMenu.
	void	setMinW(sint32 minW);

	// Gray a line on the RootMenu
	void	setGrayedLine(uint line, bool g);

	CGroupSubMenu	*getRootMenu() const { return _RootMenu; }

	// Max Visible Line (-1 == no limit)
	void setMaxVisibleLine(sint32 mvl) { _RootMenu->setMaxVisibleLine(mvl); }
	sint32 getMaxVisibleLine() { return _RootMenu->getMaxVisibleLine(); }

	// special for menu launched from a modal....
	bool	getCloseSubMenuUsingPopModal() const {return _CloseSubMenuUsingPopModal;}
	void	setCloseSubMenuUsingPopModal(bool state) {_CloseSubMenuUsingPopModal= state;}

	int luaGetRootMenu(CLuaState &ls);
	int luaSetMinW(CLuaState &ls);

	REFLECT_EXPORT_START(CGroupMenu, CGroupModal)
		REFLECT_LUA_METHOD("getRootMenu", luaGetRootMenu);
		REFLECT_LUA_METHOD("setMinW", luaSetMinW);
	REFLECT_EXPORT_END

protected:
	TCaseMode		 _CaseMode;

	CGroupSubMenu	*_RootMenu;

	// Text lookup
	NLMISC::CRGBA			_Color;
	NLMISC::CRGBA			_ShadowColor;

	bool					_CloseSubMenuUsingPopModal;
	bool					_Shadow;
	bool					_Formatted;
	uint8					_Space;
	sint32					_FontSize;

	NLMISC::CRGBA			_ColorOver;			// Color of the text when the mouse is over it
	NLMISC::CRGBA			_ShadowColorOver;	// Color of the shadow when the mouse is over it
	NLMISC::CRGBA			_HighLightOver;		// Background color of the selection

	NLMISC::CRGBA			_ColorGrayed;		// Color of the text when it is unusable
	NLMISC::CRGBA			_ShadowColorGrayed;	// Color of the shadow when it is unusable

	friend class CGroupSubMenu;
};


#endif // RZ_GROUP_MENU_H

/* End of group_menu.h */