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-rw-r--r--libs/gtkmm2ext/click_box.cc125
1 files changed, 125 insertions, 0 deletions
diff --git a/libs/gtkmm2ext/click_box.cc b/libs/gtkmm2ext/click_box.cc
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+++ b/libs/gtkmm2ext/click_box.cc
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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)
+ : AutoSpin (*adjp)
+{
+ 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);
+ remove_modal_grab();
+ break;
+ default:
+ 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;
+}