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/*
Copyright (C) 1999 Paul Barton-Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#include <iostream>
#include <cstdio> /* for sprintf, sigh ... */
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/click_box.h>
using namespace std;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace sigc;
ClickBox::ClickBox (Gtk::Adjustment *adjp, const string &name, bool round_to_steps)
: AutoSpin (*adjp,0,round_to_steps)
{
print_func = default_printer;
print_arg = 0;
set_name (name);
add_events (Gdk::BUTTON_RELEASE_MASK|
Gdk::BUTTON_PRESS_MASK|
Gdk::ENTER_NOTIFY_MASK|
Gdk::LEAVE_NOTIFY_MASK);
set_label ();
get_adjustment().signal_value_changed().connect (mem_fun (*this, &ClickBox::set_label));
signal_button_press_event().connect (mem_fun (*this, &ClickBox::button_press_handler));
signal_button_release_event().connect (mem_fun (*this, &ClickBox::button_release_handler));
}
ClickBox::~ClickBox ()
{
}
bool
ClickBox::button_press_handler (GdkEventButton* ev)
{
add_modal_grab();
AutoSpin::button_press (ev);
return true;
}
bool
ClickBox::button_release_handler (GdkEventButton* ev)
{
switch (ev->button) {
case 1:
case 2:
case 3:
stop_spinning (0);
default:
remove_modal_grab();
break;
}
return true;
}
void
ClickBox::default_printer (char buf[32], Gtk::Adjustment &adj,
void *ignored)
{
sprintf (buf, "%.2f", adj.get_value());
}
void
ClickBox::set_label ()
{
queue_draw ();
}
bool
ClickBox::on_expose_event (GdkEventExpose *ev)
{
/* Why do we do things like this rather than use a Gtk::Label?
Because whenever Gtk::Label::set_label() is called, it
triggers a recomputation of its own size, along with that
of its container and on up the tree. That's intended
to be unnecessary here.
*/
Gtk::DrawingArea::on_expose_event (ev);
if (print_func) {
char buf[32];
Glib::RefPtr<Gtk::Style> style (get_style());
print_func (buf, get_adjustment(), print_arg);
Glib::RefPtr <Gdk::Window> win (get_window());
win->draw_rectangle (style->get_bg_gc(get_state()),
TRUE, 0, 0, -1, -1);
{
int width = 0;
int height = 0;
create_pango_layout(buf)->get_pixel_size(width, height);
set_size_request(width, height);
}
}
return true;
}
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