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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 */
#include "MGGraphPlotter.h"
MGGraphPlotter::MGGraphPlotter(GtkDrawingArea *darea, bool use_buffer)
: Gtk::DrawingArea(darea), _initialized(false), _resized(false), _use_buffer(use_buffer),
_refreshing(false)
{
modify_bg(Gtk::STATE_NORMAL, get_style()->get_black());
}
MGGraphPlotter::MGGraphPlotter(bool use_buffer)
: Gtk::DrawingArea(), _initialized(false), _resized(false), _use_buffer(use_buffer),
_refreshing(false)
{
modify_bg(Gtk::STATE_NORMAL, get_style()->get_black());
}
void MGGraphPlotter::refresh()
{
if (!_refreshing)
{
_refreshing= true;
if (!_buffer || !_use_buffer)
update();
if (_use_buffer)
get_window()->draw_drawable(get_style()->get_fg_gc(Gtk::STATE_NORMAL),
_buffer, 0, 0, 0, 0);
_refreshing= false;
}
}
void MGGraphPlotter::update()
{
Glib::RefPtr<Gtk::Style> style= get_style();
if (!_initialized || _resized)
{
_initialized= true;
_resized= false;
get_window()->get_size(_width, _height);
if (_use_buffer)
{
_buffer= Gdk::Pixmap::create(get_window(), _width, _height,
get_window()->get_depth());
_buffer->draw_rectangle(style->get_bg_gc(Gtk::STATE_NORMAL), true,
0, 0, _width, _height);
}
}
if (!_use_buffer)
{
_buffer= get_window();
}
_buffer->draw_line(style->get_dark_gc(Gtk::STATE_ACTIVE), 0, 0, _width, 0);
_buffer->draw_line(style->get_dark_gc(Gtk::STATE_ACTIVE), 0, 0, 0, _height);
_buffer->draw_line(style->get_light_gc(Gtk::STATE_ACTIVE), 0, _height-1, _width, _height-1);
_buffer->draw_line(style->get_light_gc(Gtk::STATE_ACTIVE), _width-1, 0, _width-1, _height);
}
bool MGGraphPlotter::on_expose_event(GdkEventExpose *event)
{
if (event->count == 0)
refresh();
return true;
}
bool MGGraphPlotter::on_configure_event(GdkEventConfigure *event)
{
if (!_initialized || event->width != _width || event->height != _height)
{
_resized= true;
update();
}
return Gtk::DrawingArea::on_configure_event(event);
}
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