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/*  Marcion

    Copyright (C) 2009-2015 Milan Konvicka



    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 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 General Public License for more details.



    You should have received a copy of the GNU General Public License along

    with this program; if not, write to the Free Software Foundation, Inc.,

    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */



#ifndef MIMAGE_H

#define MIMAGE_H

//

#include <QGraphicsView>

#include <QGraphicsItem>

#include <QGraphicsScene>

#include <QMouseEvent>

#include <QPixmap>

#include <QMenu>

#include <QAction>

#include <QClipboard>

#include <QMatrix>

#include <QBrush>

#include <QBitmap>

#include <QApplication>



#include "messages.h"

#include "settings.h"

#include "mnavwnd.h"



//



class CMImage : public QGraphicsView

{

    friend class MImageWidget;

Q_OBJECT

public:

    enum ImageMode{Image,Pdf,Map};

    enum MouseMode{Move,Select};

    enum CopyTextTarget{Clip,Dict,Conv};

    enum SelMoveMode{Normal,LeftTop,LeftBottom,RightTop,RightBottom};

        CMImage(QWidget * parent = 0);

        ~CMImage();

        //void init(CMessages * const messages);

        bool loadPage(QString const &,qreal,qreal rotate=0);

        void setPixmap(QPixmap const &);

        QPixmap const & getPixmap() const {return pixmap;}

        QPixmap const * ptrPixmap() const {return &pixmap;}

        void clearPixmap();

        void deleteNavigator();

        void scale(qreal zoom,qreal angle=0);

        void showPopupOnButton(QAbstractButton * button);

        QGraphicsScene * grScene(){return &scene;}

        //void enablePdfMenu();

        void setMouseMode(MouseMode,bool signal=true);

        void setSettingsState(bool);

        void setSelectionBorderColor(QColor const &);

        void setSelectionBorderWidth(int);

        void setSelectionFillColor(QColor const &);

        //void setSelectionFillOpacity(int);

        void cancelSelection();

        QRect selectionRect() const {return selection.toRect();}

        QRectF selectionRectF() const {return selection;}



        void setImageMode(ImageMode imode,QAbstractButton * find_button=0);

        ImageMode imageMode(){return _i_mode;}

        //void rotate(qreal);



        QSizeF currentPageSize() const;

        void copyImage(),clearSelection();

        void grid(bool show);

        void enableGrid(bool enable);



        void setNavButton(QAbstractButton * button,MNavWnd ** w) {_nav_butt=button; _w=w;}

        void selectAll();

protected:

	void mousePressEvent ( QMouseEvent * e );

	void mouseMoveEvent ( QMouseEvent * e );

	void mouseReleaseEvent ( QMouseEvent * e );

    void keyPressEvent ( QKeyEvent * e );

private:

	QPointF start;

	QGraphicsScene scene;

	QGraphicsItem * current;

        //QSize _cur_size;

        QGraphicsRectItem * sel_rect;

        QPixmap pixmap;



        MButtonMenu popup;

        QMenu popupSel;



        QRectF selection;

        QPen sel_pen;

        QBrush sel_brush;



        MouseMode _m_mode;

        SelMoveMode _s_mode;

        ImageMode _i_mode;



        QActionGroup agrp,agrpSel;



        QList<QGraphicsLineItem*> _grid;

        bool _grid_enabled;



        QAction * a_move,*a_select,*a_select_all,*a_copy,*a_copy_text,*a_dictionary,*a_conv,*a_clr_selection,*a_repaint,*a_sett,*a_links,*a_fonts,*a_find,*a_zoomplus,*a_zoomminus,*a_navigate;

        QAction *a_sel_lt,*a_sel_lb,*a_sel_rt,*a_sel_rb,*a_sel_norm;

        QAbstractButton * _findbutt,*_nav_butt;

        MNavWnd ** _w;

private slots:

        void slot_customContextMenuRequested(QPoint);

signals:

        void positionChanged(QPointF);

        void copyTextRequested(QRectF,int);

        void showLinksRequested();

        void showFontsRequested();

        //void findTextRequested();

        void mouseModeChanged(int);

        void settingsActivated(bool);

        void resizeRequested(bool smaller);

        void beforeSceneResized();

        void afterSceneResized();

        void selectionChanged(QRectF selection);

};

#endif