hruler.h

/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/***************************************************************************
                        hruler.h  -  description
                            -------------------
    begin                : Tue Apr 10 2001
    copyright            : (C) 2001 by Franz Schmid
    email                : Franz.Schmid@altmuehlnet.de
***************************************************************************/

/***************************************************************************
*                                                                         *
*   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.                                   *
*                                                                         *
***************************************************************************/

#ifndef HRULER_H
#define HRULER_H

#include <QWidget>

#include "scribusapi.h"
#include "styles/paragraphstyle.h"

class PageItem;

class QPaintEvent;
class QMouseEvent;
class PrefsManager;
class RulerGesture;
class ScribusView;
class ScribusDoc;
class ScribusMainWindow;

class SCRIBUS_API Hruler : public QWidget
{
    Q_OBJECT

public:
    Hruler(ScribusView *pa, ScribusDoc *doc);
    ~Hruler() {};
private:
    bool textEditMode;
    double ColGap;
    double lineCorr;
    int Cols;
    double RExtra;
    double Extra;
    double Indent;
    double First;
    double RMargin;
    bool Revers;
    QList<ParagraphStyle::TabRecord> TabValues;
    PageItem * currItem;

    double ItemPos;
    double ItemEndPos;
    double offs;
    double itemScale;
public:
    double ruleSpacing();
    void setItem(PageItem * item);
    void textMode(bool state) { textEditMode = state; }
    double textBase() const; // left text edge in canvas coord
    double textWidth() const;
    double textPosToCanvas(double x) const;
    int textPosToLocal(double x) const;
    double localToTextPos(int x) const;
    void shift(double pos); // using canvas coord
    void shiftRel(double dist); // using canvas coord
    double offset() const { return offs; }
    
private:
    int findRulerHandle(QPoint mp, double grabRadius);
    
    virtual void paintEvent(QPaintEvent *e);
    virtual void mousePressEvent(QMouseEvent *m);
    virtual void mouseReleaseEvent(QMouseEvent *);
    virtual void mouseMoveEvent(QMouseEvent *m);
    virtual void enterEvent(QEvent *m);
    virtual void leaveEvent(QEvent *m);

    void drawMarks(QPainter& p);
    void drawTextMarks(double pos, double endPos, QPainter& p);
    void drawMarker(QPainter& p);
    void drawNumber(QString num, int startx, int starty, QPainter & p);
    void UpdateTabList();

    int Markp;
    int oldMark;
    bool Mpressed;
    int ActCol;
    int ActTab;
    double Scaling;
    int RulerCode;
    int MouseX;

    ScribusDoc *m_doc;
    ScribusView *m_view;
    
public slots: // Public slots
    void Draw(int where);
    void unitChange();

signals:
    void DocChanged(bool);
    void MarkerMoved(double base, double xp);

private:
    double iter, iter2;
    double cor;
    int whereToDraw;
    bool drawMark;
    PrefsManager *prefsManager;
    RulerGesture* rulerGesture;
};

#endif