lib/DatePlot.h

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/*
 *  Qtstalker stock charter
 * 
 *  Copyright (C) 2001-2007 Stefan S. Stratigakos
 * 
 *  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */

#ifndef DATEPLOT_HPP
#define DATEPLOT_HPP

#include <qwidget.h>
#include <qpixmap.h>
#include <qcolor.h>
#include <qfont.h>
#include <qmemarray.h>
#include "BarData.h"


typedef struct
{
  QString text;
  bool flag; // false == ignore
  bool tick; // true == long tick

} TickItem;


class DatePlot : public QWidget
{
  Q_OBJECT

  public:
    DatePlot (QWidget *);
    ~DatePlot ();
    void clear ();
    void setData (BarData *);
    QMemArray<int> & getXGrid ();

  public slots:
    void draw();
    void drawRefresh();
    void setPixelspace (int);
    void setBackgroundColor (QColor);
    void setBorderColor (QColor);
    void setPlotFont (QFont);
    void setIndex (int);
    void setInterval(BarData::BarLength);

  protected:
    virtual void paintEvent (QPaintEvent *);
    virtual void resizeEvent (QResizeEvent *);

  private slots:
    void getDailyDate ();
    void getWeeklyDate ();
    void getMonthlyDate ();
    void getMinuteDate ();

  private:
    QFont plotFont;
    QPixmap buffer;
    int pixelspace;
    int scaleWidth;
    int startX;
    int startIndex;
    BarData::BarLength interval;
    QColor backgroundColor;
    QColor borderColor;
    BarData *data;
    QPtrList<TickItem> dateList;
    QMemArray<int> xGrid;
};

#endif

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