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/* Copyright (C) 2005 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 "MGCanvasScroller.h"
#include "MGCanvas.h"
/**
* @file MGCanvasScroller.cc
* @brief
*/
MGCanvasScroller::MGCanvasScroller()
: Gtk::Table(2, 2), _canvas(0)
{
attach(_vscroll, 1, 2, 0, 1, Gtk::FILL, Gtk::FILL|Gtk::EXPAND);
attach(_hscroll, 0, 1, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
show_all();
_hscroll.get_adjustment()->signal_changed().connect(sigc::mem_fun(*this,&MGCanvasScroller::scroller_changed));
_vscroll.get_adjustment()->signal_changed().connect(sigc::mem_fun(*this,&MGCanvasScroller::scroller_changed));
_hscroll.get_adjustment()->signal_value_changed().connect(sigc::mem_fun(*this,&MGCanvasScroller::scroller_changed));
_vscroll.get_adjustment()->signal_value_changed().connect(sigc::mem_fun(*this,&MGCanvasScroller::scroller_changed));
_hscroll.get_adjustment()->set_page_increment(50.0);
_hscroll.get_adjustment()->set_step_increment(5.0);
_vscroll.get_adjustment()->set_page_increment(50.0);
_vscroll.get_adjustment()->set_step_increment(5.0);
}
void MGCanvasScroller::add(MGCanvas *canvas)
{
_canvas= canvas;
attach(*_canvas, 0, 1, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
_canvas->show();
}
Gtk::Adjustment *MGCanvasScroller::get_hadjustment()
{
return _hscroll.get_adjustment();
}
Gtk::Adjustment *MGCanvasScroller::get_vadjustment()
{
return _vscroll.get_adjustment();
}
void MGCanvasScroller::scroller_changed()
{
if (_canvas)
_canvas->update_from_scrollers();
}
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