154 lines
3.7 KiB
C++
154 lines
3.7 KiB
C++
/*
|
|
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;
|
|
layout = create_pango_layout ("");
|
|
twidth = 0;
|
|
theight = 0;
|
|
|
|
|
|
add_events (Gdk::BUTTON_RELEASE_MASK|
|
|
Gdk::BUTTON_PRESS_MASK|
|
|
Gdk::ENTER_NOTIFY_MASK|
|
|
Gdk::LEAVE_NOTIFY_MASK);
|
|
|
|
get_adjustment().signal_value_changed().connect (mem_fun (*this, &ClickBox::set_label));
|
|
signal_style_changed().connect (mem_fun (*this, &ClickBox::style_changed));
|
|
signal_button_press_event().connect (mem_fun (*this, &ClickBox::button_press_handler));
|
|
signal_button_release_event().connect (mem_fun (*this, &ClickBox::button_release_handler));
|
|
set_name (name);
|
|
set_label ();
|
|
}
|
|
|
|
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 ()
|
|
{
|
|
if (!print_func) {
|
|
return;
|
|
}
|
|
|
|
char buf[32];
|
|
|
|
print_func (buf, get_adjustment(), print_arg);
|
|
|
|
layout->set_text (buf);
|
|
layout->get_pixel_size (twidth, theight);
|
|
|
|
queue_draw ();
|
|
}
|
|
|
|
void
|
|
ClickBox::style_changed (const Glib::RefPtr<Gtk::Style>& ignored)
|
|
{
|
|
|
|
layout->context_changed ();
|
|
layout->get_pixel_size (twidth, theight);
|
|
}
|
|
|
|
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) {
|
|
|
|
Glib::RefPtr<Gtk::Style> style (get_style());
|
|
Glib::RefPtr<Gdk::GC> fg_gc (style->get_fg_gc (Gtk::STATE_NORMAL));
|
|
Glib::RefPtr<Gdk::GC> bg_gc (style->get_bg_gc (Gtk::STATE_NORMAL));
|
|
Glib::RefPtr<Gdk::Window> win (get_window());
|
|
|
|
GdkRectangle base_rect;
|
|
GdkRectangle draw_rect;
|
|
gint x, y, width, height, depth;
|
|
|
|
win->get_geometry (x, y, width, height, depth);
|
|
|
|
base_rect.width = width;
|
|
base_rect.height = height;
|
|
base_rect.x = 0;
|
|
base_rect.y = 0;
|
|
|
|
gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
|
|
win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
|
|
|
|
if (twidth && theight) {
|
|
win->draw_layout (fg_gc, (width - twidth) / 2, (height - theight) / 2, layout);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|