sgpemv2/src/schedulables_widget.hh

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// src/schedulables_widget.hh - Copyright 2005, 2006, University
// of Padova, dept. of Pure and Applied
// Mathematics
//
// This file is part of SGPEMv2.
//
// This 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.
//
// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#ifndef SCHEDULABLES_WIDGET_HH
#define SCHEDULABLES_WIDGET_HH 1
#include "config.h"
#include "backend/history_observer.hh"
#include <cairo.h>
#include <gtkmm/widget.h>
#include <gdkmm/pixmap.h>
namespace sgpem
{
class SchedulablesWidget : public Gtk::Widget, public HistoryObserver
{
public:
SchedulablesWidget();
virtual ~SchedulablesWidget();
void update(const History& history);
protected:
virtual void on_realize();
virtual void on_size_allocate(const Gtk::Allocation& allocation);
virtual void on_size_request(Gtk::Requisition* requisition);
virtual bool on_expose_event(GdkEventExpose* event);
virtual bool on_button_press_event(GdkEventButton* event);
virtual void draw_widget(cairo_t* ctx);
virtual unsigned int calc_height(const History& history) const;
// The height the widget will assume, must be determined
// before starting drawing by calc_height().
unsigned int _h;
private:
typedef Gdk::Rectangle area_t;
typedef sigc::mem_functor0<void, SchedulablesWidget> method0_t;
typedef std::pair<area_t, method0_t> area_callback_t;
typedef std::vector<area_callback_t> areas_vect_t;
Glib::RefPtr<Gdk::Pixmap> _buf;
};
} //~ namespace sgpem
#endif //~ SCHEDULABLES_WIDGET_HH