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.
20 #ifndef __pbd_gtk_ui_h__
21 #define __pbd_gtk_ui_h__
30 #include <gtkmm/widget.h>
31 #include <gtkmm/style.h>
32 #include <gtkmm/textbuffer.h>
33 #include <gtkmm/main.h>
34 #include <gdkmm/color.h>
35 #include <pbd/abstract_ui.h>
36 #include <pbd/ringbufferNPT.h>
39 #include <pbd/error.h>
40 #include <pbd/receiver.h>
51 extern BaseUI::RequestType ErrorMessage;
52 extern BaseUI::RequestType Quit;
53 extern BaseUI::RequestType CallSlot;
54 extern BaseUI::RequestType TouchDisplay;
55 extern BaseUI::RequestType StateChange;
56 extern BaseUI::RequestType SetTip;
57 extern BaseUI::RequestType AddIdle;
58 extern BaseUI::RequestType AddTimeout;
60 struct UIRequest : public BaseUI::BaseRequestObject {
62 /* this once used anonymous unions to merge elements
63 that are never part of the same request. that makes
64 the creation of a legal copy constructor difficult
65 because of the semantics of the slot member.
70 Gtk::StateType new_state;
71 int (*function)(void *);
73 Transmitter::Channel chn;
76 sigc::slot<void> slot;
79 if (type == ErrorMessage && msg) {
80 /* msg was strdup()'ed */
86 class UI : public Receiver, public AbstractUI<UIRequest>
89 UI (string name, int *argc, char **argv[]);
92 static UI *instance() { return theGtkUI; }
94 /* receiver interface */
96 void receive (Transmitter::Channel, const char *);
98 /* Abstract UI interfaces */
100 bool caller_is_ui_thread ();
102 static pthread_t thread_id() { return gui_thread; }
104 /* Gtk-UI specific interfaces */
109 int load_rcfile (string, bool themechange = false);
110 void run (Receiver &old_receiver);
112 void set_state (Gtk::Widget *w, Gtk::StateType state);
113 void popup_error (const char *text);
114 void flush_pending ();
115 void toggle_errors ();
116 void touch_display (Touchable *);
117 void set_tip (Gtk::Widget *w, const gchar *tip, const gchar *hlp);
118 void idle_add (int (*func)(void *), void *arg);
120 template<class T> static bool idle_delete (T *obj) { delete obj; return false; }
121 template<class T> static void delete_when_idle (T *obj) {
122 Glib::signal_idle().connect (bind (slot (&UI::idle_delete<T>), obj));
125 Gdk::Color get_color (const string& prompt, bool& picked, const Gdk::Color *initial = 0);
127 /* starting is sent just before we enter the main loop,
128 stopping just after we return from it (at the top level)
131 sigc::signal<void> starting;
132 sigc::signal<void> stopping;
134 sigc::signal<void> theme_changed;
136 static bool just_hide_it (GdkEventAny *, Gtk::Window *);
138 static pthread_t the_gui_thread() { return gui_thread; }
141 virtual void handle_fatal (const char *);
142 virtual void display_message (const char *prefix, gint prefix_len,
143 Glib::RefPtr<Gtk::TextBuffer::Tag> ptag,
144 Glib::RefPtr<Gtk::TextBuffer::Tag> mtag,
149 static pthread_t gui_thread;
153 Glib::RefPtr<Gtk::TextBuffer::Tag> error_ptag;
154 Glib::RefPtr<Gtk::TextBuffer::Tag> error_mtag;
155 Glib::RefPtr<Gtk::TextBuffer::Tag> fatal_ptag;
156 Glib::RefPtr<Gtk::TextBuffer::Tag> fatal_mtag;
157 Glib::RefPtr<Gtk::TextBuffer::Tag> info_ptag;
158 Glib::RefPtr<Gtk::TextBuffer::Tag> info_mtag;
159 Glib::RefPtr<Gtk::TextBuffer::Tag> warning_ptag;
160 Glib::RefPtr<Gtk::TextBuffer::Tag> warning_mtag;
162 static void signal_pipe_callback (void *, gint, GdkInputCondition);
163 void process_error_message (Transmitter::Channel, const char *);
166 void color_selection_done (bool status);
167 bool color_selection_deleted (GdkEventAny *);
170 void do_request (UIRequest*);
175 #endif /* __pbd_gtk_ui_h__ */