#ifndef MAPEDITOR_H

#define MAPEDITOR_H

#include <QBuffer>

#include <QGraphicsView>

#include "mapcenterobj.h"

#include "file.h"

#include "misc.h"

#include "selection.h"

#include "settings.h"

class Q3NetworkOperation;

class Q3UrlOperator;

class MapEditor : public QGraphicsView, public xmlObj {

    Q_OBJECT

public:

    MapEditor(QWidget* parent=0);

	~MapEditor();

    MapCenterObj* getMapCenter();

	QGraphicsScene * getScene();

	void adjustCanvasSize();// adjust canvas size to map and scrollview

	bool isRepositionBlocked(); // block while load or undo

private:

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

	void makeTmpDirs();		// create temporary directories

    QString saveToDir(const QString&,const QString &,bool, const QPointF &,LinkableMapObj*);

    void saveStateChangingPart (LinkableMapObj *, LinkableMapObj *, const QString &, const QString &);

    void saveStateRemovingPart (LinkableMapObj *, const QString &);

    void saveState(LinkableMapObj *, const QString &, LinkableMapObj *, const QString &, const QString &);

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

    void saveState(const SaveMode&, const QString &, const QString &, const QString &, const QString &, const QString &, LinkableMapObj *);

public:	

    void parseAtom(const QString &);	

private:

    void addFloatImageInt(const QPixmap &img);

  private slots:

    void fetchImage(const QString &img);

    void imageDataFetched(const QByteArray &, Q3NetworkOperation *);

    void imageDataFinished(Q3NetworkOperation *);

public:

	bool isDefault();		// false, if map was changed once

    bool isUnsaved();		// save necessary

    bool hasChanged();		// undo possible

	void setChanged();		// called from NoteEditor via LMO

	void closeMap();

	void setFilePath (QString);	

	void setFilePath (QString,QString);	

	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"

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

public:

    int save(const SaveMode &);	// Save map 

	void setZipped(bool);		// save map zipped

	bool saveZipped();			// 1 if file will be saved zipped

    void print();				// print canvas

	void setAntiAlias (bool);

	void setSmoothPixmap(bool);

private:

    QPixmap getPixmap();

	void setHideTmpMode (HideTmpMode);	// temporary hide stuff

	HideTmpMode getHideTmpMode();		// temporary hide stuff

public:

	void setExportMode (bool);			// temporary hide stuff during export

    void exportImage (QString fn);			// export as PNG	

    void exportImage (QString fn, QString);	// export in given format

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

    void exportXML(const QString&);		// export to directory

    void clear();		// clear map

    void copy();		// copy branch to clipboard

    void redo();		// redo last action

	bool isRedoAvailable();

    void undo();		// undo last action

	bool isUndoAvailable();

	void gotoHistoryStep (int);// goto a step in history

private:	

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

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

    void pasteNoSave();		// paste clipboard to branch

    void cutNoSave();	// cut to clipboard

public:	

    void paste();		// paste clipboard to branch and backup

    void cut();			// cut to clipboard and backup

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

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

    void moveBranchUp();

    void moveBranchDown();

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

	void setHeading(const QString &);

private:

	void setHeadingInt(const QString &);

	void setURLInt(const QString &);		// Just set the URL for selection

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

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

public:	

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

    BranchObj* addNewBranchBefore();		// insert and make selection its

    void deleteSelection();

	LinkableMapObj* getSelection();	// returns selection

	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 colorItem(QColor);

    void colorBranch(QColor);

	void toggleStandardFlag(QString);

	virtual void setViewCenter();			// needed for zooming

    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 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

	LinkStyle getMapLinkStyle ();			// requested in LMO

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

	void setMapLinkColorHintInt();			// color of links

	void setMapLinkColorHint(LinkColorHint);// color of links

	LinkColorHint getMapLinkColorHint();

	QColor getMapDefLinkColor();

	void setMapDefXLinkColor(QColor);

	QColor getMapDefXLinkColor();

	void setMapDefXLinkWidth (int);

	int getMapDefXLinkWidth();

	void toggleMapLinkColorHint();			// after changing linkStyles

    void selectMapLinkColor();

    void toggleScroll();

    void unScrollAll();

	void loadFloatImage ();

	void saveFloatImage ();

	void setFrame(const FrameType &);

	void setIncludeImagesVer(bool);

	void setIncludeImagesHor(bool);

	void setHideLinkUnselected (bool);

	bool getHideLinkUnselected ();

private:	

    void importDirInt(BranchObj *,QDir);

public:	

    void importDir();

	void followXLink (int);

	void editXLink (int);

    void testFunction();					// just testing new stuff

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

protected:

	void ensureSelectionVisible();		

	virtual void updateViewCenter();	// needed for zooming

	virtual void contextMenuEvent ( QContextMenuEvent *e );

    virtual void keyPressEvent(QKeyEvent*);

    virtual void keyReleaseEvent(QKeyEvent*);

    virtual void mousePressEvent(QMouseEvent*);

    virtual void mouseReleaseEvent(QMouseEvent*);

    virtual void mouseDoubleClickEvent(QMouseEvent*);

    virtual void mouseMoveEvent(QMouseEvent*);

    virtual void contentsDragEnterEvent(QDragEnterEvent *event);

    virtual void contentsDropEvent(QDropEvent *event);

private:

	QGraphicsScene *mapScene;

    MapCenterObj* mapCenter;

	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

	LinkColorHint linkcolorhint;// use heading color or own color

	LinkStyle 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;

    LinkableMapObj* selection;		// select a LinkableMapObj

    LinkableMapObj* selectionLast;	// last selection 

    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

	QPointF movingCenter;			// used when zooming

    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

	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

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

	SimpleSettings undoSet;		// undo/redo commands

	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

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

    void resizeEvent( QResizeEvent * );

	Q3UrlOperator *urlOperator;

	QDataStream *imageData;

	QBuffer *imageBuffer;

};

#endif