#ifndef VYMMODEL_H

#define VYMMODEL_H

#include <QGraphicsScene>

#include <QtNetwork>

#include "file.h"

#include "mapcenterobj.h"

#include "mapeditor.h"

#include "parser.h"

#include "selection.h"

#include "treeitem.h"

#include "treemodel.h"

class BranchItem;

class VymModel : public TreeModel {		

	Q_OBJECT

////////////////////////////////////////////

// General housekeeping

////////////////////////////////////////////

private:

	QGraphicsScene *mapScene;

	QList <MapCenterObj*> mapCenters;

	QString version;	//!< version string saved in vym file

	QString author;

	QString comment;

	QDate date;

public:

	VymModel();

	~VymModel ();

    void clear();

    void init();

	void makeTmpDirectories();		//!< create temporary directories e.g. for history

	MapEditor* getMapEditor();			// FIXME not necessary

	bool isRepositionBlocked();		//!< While load or undo there is no need to update graphicsview

	void updateActions();			//!< Update buttons in mainwindow

////////////////////////////////////////////

// Load/save 

////////////////////////////////////////////

private:

	bool zipped;				// should map be zipped

	static	int mapNum;			// unique number for model used in save/undo

	FileType fileType;			// type of file, e.g. vym, freemind...

	QString fileName;			// short name of file (for tab)

	QString filePath;			// path to file which will be saved

	QString fileDir;			// dir where file is saved

	QString destPath;			// path to .vym file (needed for vymlinks)

	QString mapName;			// fileName without ".vym"

	QString tmpMapDir;			// tmp directory with undo history

	QTimer *autosaveTimer;

	QTimer *fileChangedTimer;

	QDateTime fileChangedTime;

public:

	/*! This function saves all information of the map to disc.

	    saveToDir also calls the functions for all BranchObj and other objects in the map.

		The structure of the map itself is returned as QString and passed back to Main, 

		where saveToDir is called initially

	*/	

    QString saveToDir (const QString &tmpdir, const QString &prefix, bool writeflags, const QPointF &offset, LinkableMapObj *saveSel);

	/*! Save all data in tree*/

	QString saveTreeToDir (const QString&,const QString&,int, const QPointF&);// Save data recursivly to tempdir

	/*! \brief Sets filepath, filename and mapname

	     If the filepath is "/home/tux/map.xml", then the filename will be set

		 to map.xml. The destname is needed for vymLinks, pointing to another map. 

		 The destname holds the real name of the file, after it has been compressed, e.g. "map.vym"

	*/	 

	/*! \brief Set File path

	     The destname is needed to construct the references between maps

	*/	 

	void setFilePath (QString filepath,QString destname);	

	void setFilePath (QString);	//!< Overloaded for convenience

	QString getFilePath ();	//!< Full path e.g. "/home/tux/map.xml"

	QString getFileName ();	//!< e.g. "map.xml"

	QString getMapName ();	//!< e.g. "map"

	QString getDestPath (); //!< e.g. "/home/tux/map.vym"

	/*! \brief Load map

		The data is read from file. Depending on LoadMode the current

		selection gets replaced by data or the data is appended.

	*/	

    ErrorCode load (QString, const LoadMode &, const FileType& );	// newmap, import/replace selection

public:

	/*! \brief Save the map to file */

    ErrorCode save(const SaveMode &);	

private:

    void addMapReplaceInt(const QString & undoSel, const QString & path);

    void addMapInsertInt (const QString & path, int pos);

	FloatImageObj* loadFloatImageInt (QString);

	void saveFloatImageInt (FloatImageObj*, const QString &, const QString &);

public:	

	void loadFloatImage ();

	void saveFloatImage ();

private:	

    void importDirInt(BranchObj *,QDir);

    void importDirInt(const QString&);

public:	

    void importDir();

private slots:

	void autosave ();

	void fileChanged();

////////////////////////////////////////////

// history (undo/redo)

////////////////////////////////////////////

private:

    bool mapDefault;			//!< Flag if map is untouched

    bool mapChanged;			//!< Flag if undo is possible

	bool mapUnsaved;			//!< Flag if map should be saved

	QString histPath;			//!< Path to history file

	SimpleSettings undoSet;		//!< undo/redo commands, saved in histPath

	int stepsTotal;				//!< total number of steps (undos+redos) 

	int curStep;				//!< Current step in history (ring buffer)

	int curClipboard;			//!< number of history step, which is the current clipboard

	int redosAvail;				//!< Available number of redo steps

	int undosAvail;				//!< Available number of undo steps

	bool blockReposition;		//!< block while load or undo

	bool blockSaveState;		//!< block while load or undo

public:

	bool isDefault();			//!< true, if map is still the empty default map

	void makeDefault();			//!< Reset changelog, declare this as default map

    bool hasChanged()	;		//!< true, if something has changed and is not saved yet

	void setChanged();			//!< called from TextEditor via LinkableMapObj

	/*! \brief Get name of object

	  Returns heading of a branch or name of an object for use in comment

	  of undo/redo history

	*/ 

	QString getObjectName(const LinkableMapObj*);	

    void redo();						//!< Redo last action

	bool isRedoAvailable();				//!< True, if redo is available

    void undo();						//!< Undo last action

	bool isUndoAvailable();				//!< True, if undo is available

	void gotoHistoryStep (int);			//!< Goto a specifig step in history

	QString getHistoryPath();			//!< Path to directory containing the history

	/*! \brief Save the current changes in map 

		Two commands and selections are saved:

			- undocommand and undoselection to undo the change

			- redocommand and redoselection to redo the action after an undo

		Additionally a comment is logged. 

	*/	

    void saveState(

		const SaveMode& savemode, 

		const QString &undoSelection, 

		const QString &undoCommand, 

		const QString &redoSelection, 

		const QString &redoCommand, 

		const QString &comment, 

		LinkableMapObj *saveSelection);

	/*! Overloaded for convenience */

    void saveStateChangingPart(

		LinkableMapObj *undoSelection, 

		LinkableMapObj* redoSelection, 

		const QString &redoCommand, 

		const QString &comment);

	/*! Overloaded for convenience */

    void saveStateRemovingPart(

		LinkableMapObj *redoSelection, 

		const QString &comment);

	/*! Overloaded for convenience */

    void saveState(

		LinkableMapObj *undoSelection, 

		const QString &undoCommand, 

		LinkableMapObj *redoSelection, 

		const QString &redoCommand, 

		const QString &comment); 

	/*! Overloaded for convenience */

    void saveState(

		const QString &undoSelection, 

		const QString &undoCommand, 

		const QString &redoSelection, 

		const QString &redoCommand, 

		const QString &comment) ;

    void saveState(

		const QString &undoCommand, 

		const QString &redoCommand, 

		const QString &comment) ;

////////////////////////////////////////////

// unsorted so far

////////////////////////////////////////////

public:

	void setScene(QGraphicsScene *s);

	QGraphicsScene *getScene();

    LinkableMapObj* findMapObj(QPointF,LinkableMapObj*);	// find MapObj 

    LinkableMapObj* findObjBySelect (const QString &s);		// find MapObj by select string

    LinkableMapObj* findID (const QString &s);				// find MapObj by previously set ID

////////////////////////////////////////////

// Interface 

////////////////////////////////////////////

public:

	void setVersion(const  QString &);

	void setAuthor  (const QString &);

	QString getAuthor ();

	void setComment (const QString &);

	QString getComment ();

	QString getDate();

	int branchCount();

public:	

	void setHeading(const QString &);		//!< Set heading of branch	

//	QString getHeading (bool &ok,QPoint &p); //!< Get heading, ok if selection is branch

private:

	BranchItem* findCurrent;		// next object in find process

	BranchItem* findPrevious;		// next object in find process

	bool EOFind;				// true, if search failed

public:

    BranchObj* findText(QString,bool);		// Find object

    void findReset();						// Reset Search

	void setURL(const QString &url);

	QString getURL();						// returns URL of selection or ""

	QStringList getURLs();					// returns URLs of subtree

	void linkFloatImageTo(const QString &);

	void setFrameType(const FrameObj::FrameType &);

	void setFrameType(const QString &);

	void setFramePenColor (const QColor &);

	void setFrameBrushColor (const QColor &);

	void setFramePadding (const int &);

	void setFrameBorderWidth (const int &);

	void setIncludeImagesVer(bool);

	void setIncludeImagesHor(bool);

	void setHideLinkUnselected (bool);

	/*! Should object be hidden in exports (clouded)? */

	void setHideExport(bool);			

	/*! Should object be hidden in exports (clouded)? */

	void toggleHideExport();		

    void copy();						//!< Copy to clipboard

private:	

    void pasteNoSave(const int &n);		//!< paste clipboard to branch

public:	

    void paste();		//!< Paste clipboard to branch and backup

    void cut();			//!< Cut to clipboard (and copy)

    void moveBranchUp();	//!< Move branch up

    void moveBranchDown();	//!< Move branch down

	void sortChildren();	//!< Sort children lexically

	// The create methods are used to quickly parse a XML file

	void createMapCenter();			//!< Create and select MapCenter

	BranchItem* createBranch();		//!< Create and select Branch

	TreeItem* createImage();		//!< Create and select image

	/*! \brief Add new mapcenter

	    Disclaimer: Still experimental, not fully supported yet.

	*/	

	MapCenterObj* addMapCenter();

private:	

	MapCenterObj* addMapCenter(QPointF absPos);

public:	

	MapCenterObj* removeMapCenter(MapCenterObj *mco);

	/*! \brief Add new branch

		Depending on num the new branch is created

		-3 above selection as child of selections parent

		-2 as child of selection

		-1 below selection as child of selections parent

		0..n	insert at a specific position in selections parent

		(needed for free relinking)

	*/	

	MapCenterObj* getLastMapCenter();		//!< get last added MapCenter, used for context menu

private:	

    BranchObj* addNewBranchInt(int);		// pos allows to add above/below selection

public:	

	/*! \Add new branch

		Depending on num the new branch is created

		-1 above selection

		 0 as child of selection

		 1 below selection

	*/

    BranchObj* addNewBranch(int pos);		

    BranchObj* addNewBranchBefore();		//!< Insert branch between selection and its parent

    void deleteSelection();					//!< Delete selection

	void deleteKeepChildren();				//!< remove branch, but keep children

	void deleteChildren();					//!< keep branch, but remove children

private:	

	bool scrollBranch(BranchItem *);

	bool unscrollBranch(BranchItem *);

public:	

    void toggleScroll();

    void unscrollChildren();

    void addFloatImage(const QPixmap &img);

    void colorBranch(QColor);

    void colorSubtree(QColor);

	QColor getCurrentHeadingColor();

	void editURL();							// edit URL

	void editLocalURL();					// edit URL to local file

	void editHeading2URL();					// copy heading to URL

	void editBugzilla2URL();				// create URL to Bugzilla

	void editFATE2URL();					// create URL to FATE

	void editVymLink();						// edit link to another map

	void setVymLink (const QString &);	// Set vymLink for selection

	void deleteVymLink();					// delete link to another map

	QString getVymLink();					// return path to map

	QStringList getVymLinks();				// return paths in subtree

	void followXLink (int);

	void editXLink (int);

////////////////////////////////////////////

// Scripting

////////////////////////////////////////////

public:	

	/* \brief Process one command and its parameters */

    void parseAtom (const QString &atom);	

	/* \brief Runs the script */

	void runScript (QString script);

private:

	Parser parser;

////////////////////////////////////////////

// Exports

////////////////////////////////////////////

private:

	HideTmpMode hidemode;	// true while exporting to hide some stuff

public:

	/*! Set or unset temporary hiding of objects during export  */

	void setExportMode (bool);

	/*! Save as image */

    void exportImage (QString fname="",bool askForName=true,QString format="PNG");

	/*! Export as XTML to directory */

    void exportXML(QString dir="", bool askForName=true);

	/*! Export as ASCII text to file */

	void exportASCII (QString fname="",bool askForName=true);  

	/*! Export as XHTML to directory */

    void exportXHTML(const QString& dir="", bool askForName=true);	

    /*! Export as OpenOfficeOrg presentation */

    void exportOOPresentation(const QString &,const QString &);	

////////////////////////////////////////////

// View related

////////////////////////////////////////////

public:

	void registerEditor (QWidget *);

	void unregisterEditor (QWidget *);

private: 

	QPointF contextPos;					//!< local position during context menu

public:

	void setContextPos (QPointF);		//!< local position during context menu

	void unsetContextPos ();			//!< forget local position after context menu

	void updateNoteFlag();				//!< Signal origination in TextEditor

    void updateRelPositions();

	QRectF getTotalBBox();

	void reposition();					//!< Call reposition for all MCOs

	void setHideTmpMode (HideTmpMode mode);	

	QPolygonF shape(BranchObj *bo);		//!< Returns arbitrary shape of subtree

	void moveAway (LinkableMapObj *lmo);//!< Autolayout: Move all out of the way

	//void ensureSelectionVisible();		//!< Show selection in all views

	void emitContentHasChanged (TreeItem *ti);

signals:

	void contentHasChanged (QModelIndex ix);

	void newChildObject(QModelIndex ix);

private:

	MapEditor *mapEditor;

	QColor defLinkColor;		// default color for links

	QColor defXLinkColor;		// default color for xlinks

	int defXLinkWidth;			// default width for xlinks

	LinkableMapObj::ColorHint linkcolorhint;// use heading color or own color

	LinkableMapObj::Style linkstyle;		// default style for links

private:

    QPixmap getPixmap();

public:

	void setMapLinkStyle (const QString &);	// Set style of link

	LinkableMapObj::Style getMapLinkStyle ();	// requested in LMO

	void setMapDefLinkColor(QColor);		// default color of links

	void setMapLinkColorHintInt();			// color of links

	void setMapLinkColorHint(LinkableMapObj::ColorHint);// color of links

	void toggleMapLinkColorHint();			// after changing linkStyles

    void selectMapBackgroundImage();

    void setMapBackgroundImage(const QString &);

    void selectMapBackgroundColor();

    void setMapBackgroundColor(QColor);

    QColor getMapBackgroundColor();

	LinkableMapObj::ColorHint getMapLinkColorHint();

	QColor getMapDefLinkColor();

	void setMapDefXLinkColor(QColor);

	QColor getMapDefXLinkColor();

	void setMapDefXLinkWidth (int);

	int getMapDefXLinkWidth();

	/*!  Move absolutly to (x,y).  */	

    void move    (const double &x, const double &y);

	/*!  Move relativly to (x,y).  */	

    void moveRel (const double &x, const double &y);

////////////////////////////////////////////

// Animation  **experimental**

////////////////////////////////////////////

private:	

	QTimer *animationTimer;

	bool animationUse;

	uint animationTicks;

	uint animationInterval;

	int timerId;				// animation timer

	QList <MapObj*> animObjList;// list with animated objects

private slots:

	void animate();						//!< Called by timer to animate stuff

public:

	void startAnimation(BranchObj *bo, const QPointF &start, const QPointF &dest);

	void stopAnimation(MapObj *mo);

////////////////////////////////////////////

// Network related 

////////////////////////////////////////////

public:

    /*! \brief Networking states

		In Network modus we want to switch of saveState, autosave, ...

	*/

	enum NetState {

		Offline,			//!< Offline

		Client,				//!< I am the client and connected to server

		Server				//!< I am the server

	};

private:

	// Network connections **Experimental**

	NetState netstate;			// offline, client, server

	QTcpServer *tcpServer;		// Act as server in conference mode (experimental)

	QList <QTcpSocket*> clientList;		// List of connected clients

	quint16 sendCounter;		// Increased with every sent command

	QTcpSocket	*clientSocket;	// socket of this client

	QString server;				// server address of this client

	int port;					// server port of this client

protected:

	void sendSelection();

public:

	void newServer();

	void connectToServer();

private slots:	

	void newClient();

	void sendData(const QString &s);

	void readData();

	void displayNetworkError (QAbstractSocket::SocketError);

private:	

	void displayClientError(QAbstractSocket::SocketError socketError);

////////////////////////////////////////////

// Selection related 

////////////////////////////////////////////

private:

	Selection selection;

	QString latestSelectionString;	// select string of latest added object

signals:

	void selectionChanged(const QItemSelection &, const QItemSelection &);

public:

	void setSelectionModel(QItemSelectionModel *);		// Set common selectionModel

	QItemSelectionModel* getSelectionModel();

	void setSelectionBlocked(bool);

	bool isSelectionBlocked();

	bool select ();							// select by using common QItemSlectionModel

	bool select (const QString &);			// Select by string

	bool select (LinkableMapObj *lmo);		// Select by pointer to LMO

	bool select (TreeItem *ti );			// Select by point to TreeItem

	void unselect();

	void reselect();

	void ensureSelectionVisible();			//!< Show selection in all views

//	void selectInt(LinkableMapObj*);	

private:	

	void selectNextBranchInt();		// Increment number of branch

	void selectPrevBranchInt();		// Decrement number of branch

public:	

    void selectUpperBranch();

    void selectLowerBranch();

    void selectLeftBranch();

    void selectRightBranch();

    void selectFirstBranch();

    void selectLastBranch();

	void selectLastSelectedBranch();

	void selectParent();

public:

	TreeItem::Type selectionType();

	LinkableMapObj* getSelectedLMO();

	BranchObj* getSelectedBranch();

	BranchItem* getSelectedBranchItem();

	TreeItem* getSelectedItem();

	QModelIndex getSelectedIndex();

	FloatImageObj* getSelectedFloatImage();

	QString getSelectString ();

	QString getSelectString (LinkableMapObj *lmo);

	QString getSelectString (TreeItem *item);

	/*

public slots:

	void changeSelection (const QItemSelection &newSel, const QItemSelection &delSel);

	*/

public:

	void updateSelection(const QItemSelection &oldsel);

	void updateSelection();

	void selectMapLinkColor();

    void selectMapSelectionColor();

private:	

    void setSelectionColorInt(QColor);

	QItemSelectionModel *selModel;

public:	

    void setSelectionColor(QColor);

    QColor getSelectionColor();

};

#endif