#ifndef MAPEDITOR_H

#define MAPEDITOR_H

#include <QGraphicsView>

#include "mapcenterobj.h"

#include "file.h"

#include "misc.h"

#include "parser.h"

#include "ornamentedobj.h"

#include "selection.h"

#include "settings.h"

/*! \brief Main widget in vym to display and edit a map */

class MapEditor : public QGraphicsView, public xmlObj {

    Q_OBJECT

public:

    /*! \brief State of the mapeditor 

		While a heading is edited, the state has to change, so

		that e.g. no other object might get selected. This is done

		in Main by calling setStateEditHeading

	*/

	enum State {

		Idle,			//!< Idle, waiting for user event

		EditHeading		//!< Editing heading (dont't select another branch now)

	};

    MapEditor(QWidget* parent=0);

	~MapEditor();

    MapCenterObj* getMapCenter();		//!< Return center of map

	QGraphicsScene * getScene();

	State getState();					//!< Return State of MapEditor

	void setStateEditHeading (bool);	//!< If set to true, State will change to EditHeading

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

	bool isSaveStateBlocked();			//!< block while undo/redo or while running scripts

	void setSaveStateBlocked(bool);		//!< block saving the undo/redo state

	bool isSelectBlocked();		//!< true, if no change of selection is possible, e.g. while editing the heading of abranch

protected:

	/*! \brief Get name of object

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

	  of undo/redo history

	*/ 

	QString getName(const LinkableMapObj*);	// Get e.g. heading or filename

	void makeTmpDirs();		// create temporary directories

	/*! 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);

	/*! \brief Get directory, where current step in history is save

		saveState creates a directory for each step in history. This function returns the

		path of the current directory

	*/

	QString getHistoryDir();

	/*! \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) ;

public:	

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

    void parseAtom (const QString &atom);	

	/* \brief Runs the script */

	void runScript (QString script);

private:

    void addFloatImageInt(const QPixmap &img);

public:

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

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

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

	void closeMap();		//!< Closes the map

	/*! \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, LoadMode );	// newmap, import/replace selection

public:

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

    int save(const SaveMode &);	

	void setZipped(bool);		//!< Set or unset compression of map with zip save map zipped

	bool saveZipped();			//!< True, if file will be saved zipped

    void print();				//!< Print the map

	void setAntiAlias (bool);	//!< Set or unset antialiasing

	void setSmoothPixmap(bool); //!< Set or unset smoothing of pixmaps

private:

    QPixmap getPixmap();

	void setHideTmpMode (BranchObj::HideTmpMode);	// temporary hide stuff

	BranchObj::HideTmpMode getHideTmpMode();		// temporary hide stuff

public:

	void setExportMode (bool);			//!< Set or unset temporary hiding of objects during export

	void exportASCII (QString fname="",bool askForName=true);  	//!< Export as ASCII

	/*! Save as image */

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

    void exportOOPresentation(const QString &,const QString &);	//!< Export as OpenOfficeOrg presentation

    void exportXML(const QString&);		//!< Export as XML to directory

    void clear();						//!< Clear map

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

    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

private:	

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

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

    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)

	/*! \brief Move absolutly

		Move absolutly to (x,y).

	*/	

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

	/*! \brief Move relativly

		Move relativly to (x,y).

	*/	

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

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

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

private:	

	void linkTo(const QString &);

public:	

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

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

private:

	void setHeadingInt(const QString &);

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

	/*! \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)

	*/	

    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

	LinkableMapObj* getSelection();			//!< Returns selection

	BranchObj* getSelectedBranch();			// returns selected branch or NULL

	FloatImageObj* getSelectedFloatImage();	// returns selected branch or NULL

	void unselect();						// before changing current noteedit

	void reselect();						// after  changing current noteedit

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

	QString getSelectString();

private:	

	void selectInt(LinkableMapObj*);	

	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 selectMapBackgroundImage();

    void setMapBackgroundImage(const QString &);

    void selectMapBackgroundColor();

    void setMapBackgroundColor(QColor);

    QColor getMapBackgroundColor();

    QColor getCurrentHeadingColor();

    void colorBranch(QColor);

    void colorSubtree(QColor);

	void toggleStandardFlag(QString);

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

    void findReset();						// Reset Find 

	void setURL(const QString &);			// set the URL

	void editURL();							// edit the URL

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

	QStringList getURLs();					// returns URLs of subtree

	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 deleteVymLink();					// delete link to another map

	QString getVymLink();					// return path to map

	QStringList getVymLinks();				// return paths in subtree

	void setHideExport(bool);				// toggle the export flag

	void toggleHideExport();				// toggle the export flag

	void deleteKeepChilds();				// remove but keep childs

	void deleteChilds();					// remove childs

	void editMapInfo();						// dialog to enter author, ...

	void ensureSelectionVisible();		

	void updateSelection();					// update geometry of selection

	void updateActions();					// update e.g. format buttons

	void updateNoteFlag();					// when TextEditor changes

	void setMapAuthor (const QString &);

	void setMapComment(const QString &);

	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

	LinkableMapObj::ColorHint getMapLinkColorHint();

	QColor getMapDefLinkColor();

	void setMapDefXLinkColor(QColor);

	QColor getMapDefXLinkColor();

	void setMapDefXLinkWidth (int);

	int getMapDefXLinkWidth();

	void toggleMapLinkColorHint();			// after changing linkStyles

    void selectMapLinkColor();

    void selectMapSelectionColor();

private:	

    void setSelectionColorInt(QColor);

public:	

    void setSelectionColor(QColor);

    QColor getSelectionColor();

	bool scrollBranch(BranchObj*);

	bool unscrollBranch(BranchObj*);

    void toggleScroll();

    void unscrollChilds();

private:	

	FloatImageObj* loadFloatImageInt (QString);

public:	

	void loadFloatImage ();

private:	

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

public:	

	void saveFloatImage ();

	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);

	bool getHideLinkUnselected ();

private:	

    void importDirInt(BranchObj *,QDir);

    void importDirInt(const QString&);

public:	

    void importDir();

	void followXLink (int);

	void editXLink (int);

    void testFunction();					// just testing new stuff

											// set /mainwindo/showTestMenu=true...

protected:

	virtual void contextMenuEvent ( QContextMenuEvent *e );

    virtual void keyPressEvent(QKeyEvent*);

    virtual void keyReleaseEvent(QKeyEvent*);

    virtual void mousePressEvent(QMouseEvent*);

    virtual void mouseMoveEvent(QMouseEvent*);

    virtual void mouseReleaseEvent(QMouseEvent*);

    virtual void mouseDoubleClickEvent(QMouseEvent*);

    virtual void resizeEvent( QResizeEvent * );

	void dragEnterEvent (QDragEnterEvent *);

	void dragMoveEvent (QDragMoveEvent *);

	void dragLeaveEvent (QDragLeaveEvent *);

	void dropEvent (QDropEvent *);

	void timerEvent(QTimerEvent *event);

private slots:	

	void autosave ();

private:

	State state;				// State of MapEditor

	QGraphicsScene *mapScene;

    MapCenterObj* mapCenter;

	QTimer *autosaveTimer;

	bool adjustCanvasRequested;	// collect requests until end of user event

	BranchObj *editingBO;		// entering Text into BO

	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

    QCursor HandOpenCursor;		// cursor while moving canvas view

	QCursor PickColorCursor;	// cursor while picking color 

	QCursor CopyCursor;			// cursor while picking color 

	QCursor XLinkCursor;		// cursor while picking color 

	bool pickingColor;

	bool drawingLink;			// true while creating a link

	bool copyingObj;			// true while creating a link

	XLinkObj* tmpXLink;

	Selection xelection;	

    MapObj* movingObj;				// moving a MapObj

	MapObj* linkingObj_src;			// part of a link

    QPointF movingObj_orgPos;		// org. pos of mouse before move

    QPointF movingObj_orgRelPos;	// org. relative pos of mouse before move

    QPointF movingObj_start;		// rel. pos of mouse to absPos 

    QPointF movingCont_start;		// inital pos of moving Content or

    QPointF movingVec;				// how far has Content moved

    QPrinter* printer;				// Printing

    bool mapDefault;				// Flag if map is untouched

    bool mapChanged;				// Flag if undo is possible

	bool mapUnsaved;				// Flag if map should be saved

	Parser parser;				// Parser stuff for scripting

	bool printFrame;			// Print frame around map

	bool printFooter;			// Print footer below map

	bool zipped;				// should map be zipped

	static	int mapNum;			// unique number for Editor

	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

	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

	BranchObj* itFind;			// next object in find process

	bool EOFind;				// true, if search failed

	QPoint exportOffset;		// set before export, used in save

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

	int timerId;				// animation timer

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

};

#endif