2 Copyright (C) 1999 Paul Barton-Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <cstdio> /* for sprintf, sigh ... */
24 #include <gtkmm2ext/utils.h>
25 #include <gtkmm2ext/click_box.h>
29 using namespace Gtkmm2ext;
32 ClickBox::ClickBox (Gtk::Adjustment *adjp, const string &name, bool round_to_steps)
33 : AutoSpin (*adjp,0,round_to_steps)
35 layout = create_pango_layout ("");
40 add_events (Gdk::BUTTON_RELEASE_MASK|
41 Gdk::BUTTON_PRESS_MASK|
42 Gdk::ENTER_NOTIFY_MASK|
43 Gdk::LEAVE_NOTIFY_MASK);
45 get_adjustment().signal_value_changed().connect (mem_fun (*this, &ClickBox::set_label));
46 signal_style_changed().connect (mem_fun (*this, &ClickBox::style_changed));
47 signal_button_press_event().connect (mem_fun (*this, &ClickBox::button_press_handler));
48 signal_button_release_event().connect (mem_fun (*this, &ClickBox::button_release_handler));
53 ClickBox::~ClickBox ()
58 ClickBox::button_press_handler (GdkEventButton* ev)
61 AutoSpin::button_press (ev);
66 ClickBox::button_release_handler (GdkEventButton* ev)
81 ClickBox::set_label ()
85 bool const h = _printer (buf, get_adjustment());
87 /* the printer didn't handle it, so use a default */
88 sprintf (buf, "%.2f", get_adjustment().get_value ());
91 layout->set_text (buf);
92 layout->get_pixel_size (twidth, theight);
98 ClickBox::style_changed (const Glib::RefPtr<Gtk::Style>&)
100 layout->context_changed ();
101 layout->get_pixel_size (twidth, theight);
105 ClickBox::on_expose_event (GdkEventExpose *ev)
107 /* Why do we do things like this rather than use a Gtk::Label?
108 Because whenever Gtk::Label::set_label() is called, it
109 triggers a recomputation of its own size, along with that
110 of its container and on up the tree. That's intended
111 to be unnecessary here.
114 Gtk::DrawingArea::on_expose_event (ev);
116 Glib::RefPtr<Gtk::Style> style (get_style());
117 Glib::RefPtr<Gdk::GC> fg_gc (style->get_fg_gc (Gtk::STATE_NORMAL));
118 Glib::RefPtr<Gdk::GC> bg_gc (style->get_bg_gc (Gtk::STATE_NORMAL));
119 Glib::RefPtr<Gdk::Window> win (get_window());
121 GdkRectangle base_rect;
122 GdkRectangle draw_rect;
123 gint x, y, width, height, depth;
125 win->get_geometry (x, y, width, height, depth);
127 base_rect.width = width;
128 base_rect.height = height;
132 gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
133 win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
135 if (twidth && theight) {
136 win->draw_layout (fg_gc, (width - twidth) / 2, (height - theight) / 2, layout);
143 ClickBox::set_printer (sigc::slot<bool, char *, Gtk::Adjustment &> p)