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/* Copyright (C) 2003, 2004 MySQL AB
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 _MGTIMEGRAPHPLOTTER_H_
#define _MGTIMEGRAPHPLOTTER_H_
#include <list>
#include <time.h>
#include "MGGraphPlotter.h"
class MGTimeGraphPlotter : public MGGraphPlotter {
struct PointData {
double value;
time_t timestamp;
};
std::list<PointData> _data;
double _range_min;
double _range_max;
time_t _last_time;
int _grid_offset;
double _pixels_per_second;
int _grid_width;
int _grid_height;
Glib::RefPtr<Gdk::GC> _line_gc;
Glib::RefPtr<Gdk::GC> _grid_gc;
Gdk::Color _line_color;
Gdk::Color _grid_color;
Glib::ustring _timestamp_format;
Glib::ustring _caption;
virtual void update();
public:
MGTimeGraphPlotter(GtkDrawingArea *darea);
MGTimeGraphPlotter();
void set_range(double min, double max);
void set_grid_size(int xsize, int ysize);
void set_pixels_per_second(double p);
void set_grid_color(const Gdk::Color &color);
void set_line_color(const Gdk::Color &color);
void set_caption(const Glib::ustring &caption);
void set_timestamp_format(const Glib::ustring &fmt);
void add_value(double value, time_t timestamp);
void get_stats(double &min, double &max, double &avg);
};
#endif /* _MGTIMEGRAPHPLOTTER_H_ */
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