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__
34 #include <glibmm/thread.h>
36 #include <gtkmm/widget.h>
37 #include <gtkmm/style.h>
38 #ifndef GTK_NEW_TOOLTIP_API
39 #include <gtkmm/tooltips.h>
41 #include <gtkmm/textbuffer.h>
42 #include <gtkmm/main.h>
43 #include <gdkmm/color.h>
44 #include <pbd/abstract_ui.h>
45 #include <pbd/ringbufferNPT.h>
48 #include <pbd/error.h>
49 #include <pbd/receiver.h>
57 extern BaseUI::RequestType NullMessage;
58 extern BaseUI::RequestType ErrorMessage;
59 extern BaseUI::RequestType CallSlot;
60 extern BaseUI::RequestType TouchDisplay;
61 extern BaseUI::RequestType StateChange;
62 extern BaseUI::RequestType SetTip;
63 extern BaseUI::RequestType AddIdle;
64 extern BaseUI::RequestType AddTimeout;
66 struct UIRequest : public BaseUI::BaseRequestObject {
68 /* this once used anonymous unions to merge elements
69 that are never part of the same request. that makes
70 the creation of a legal copy constructor difficult
71 because of the semantics of the slot member.
76 Gtk::StateType new_state;
77 int (*function)(void *);
79 Transmitter::Channel chn;
88 if (type == ErrorMessage && msg) {
89 /* msg was strdup()'ed */
90 free (const_cast<char *>(msg));
95 class UI : public AbstractUI<UIRequest>
98 class MyReceiver : public Receiver {
100 MyReceiver (UI& ui) : _ui (ui) {}
101 void receive (Transmitter::Channel chn, const char *msg) {
102 _ui.receive (chn, msg);
108 MyReceiver _receiver;
111 UI (std::string name, int *argc, char **argv[]);
114 static UI *instance() { return theGtkUI; }
116 /* receiver interface */
118 void receive (Transmitter::Channel, const char *);
120 /* Abstract UI interfaces */
122 bool caller_is_ui_thread ();
124 /* Gtk-UI specific interfaces */
128 int load_rcfile (std::string, bool themechange = false);
129 void run (Receiver &old_receiver);
131 void set_state (Gtk::Widget *w, Gtk::StateType state);
132 void popup_error (const std::string& text);
133 void flush_pending ();
134 void toggle_errors ();
136 void touch_display (Touchable *);
137 void set_tip (Gtk::Widget &w, const gchar *tip);
138 void set_tip (Gtk::Widget &w, const std::string &tip);
139 void set_tip (Gtk::Widget *w, const gchar *tip, const gchar *hlp="");
140 void idle_add (int (*func)(void *), void *arg);
142 Gtk::Main& main() const { return *theMain; }
144 template<class T> static bool idle_delete (T *obj) { delete obj; return false; }
145 template<class T> static void delete_when_idle (T *obj) {
146 Glib::signal_idle().connect (bind (slot (&UI::idle_delete<T>), obj));
149 template<class T> void delete_in_self (T *obj) {
150 call_slot (boost::bind (&UI::delete_in_self, this, obj));
153 Gdk::Color get_color (const std::string& prompt, bool& picked, const Gdk::Color *initial = 0);
155 /* starting is sent just before we enter the main loop,
156 stopping just after we return from it (at the top level)
159 sigc::signal<void> starting;
160 sigc::signal<void> stopping;
162 sigc::signal<void> theme_changed;
164 static bool just_hide_it (GdkEventAny *, Gtk::Window *);
167 virtual void handle_fatal (const char *);
168 virtual void display_message (const char *prefix, gint prefix_len,
169 Glib::RefPtr<Gtk::TextBuffer::Tag> ptag, Glib::RefPtr<Gtk::TextBuffer::Tag> mtag,
177 #ifndef GTK_NEW_TOOLTIP_API
181 Glib::RefPtr<Gtk::TextBuffer::Tag> error_ptag;
182 Glib::RefPtr<Gtk::TextBuffer::Tag> error_mtag;
183 Glib::RefPtr<Gtk::TextBuffer::Tag> fatal_ptag;
184 Glib::RefPtr<Gtk::TextBuffer::Tag> fatal_mtag;
185 Glib::RefPtr<Gtk::TextBuffer::Tag> info_ptag;
186 Glib::RefPtr<Gtk::TextBuffer::Tag> info_mtag;
187 Glib::RefPtr<Gtk::TextBuffer::Tag> warning_ptag;
188 Glib::RefPtr<Gtk::TextBuffer::Tag> warning_mtag;
190 static void signal_pipe_callback (void *, gint, GdkInputCondition);
191 void process_error_message (Transmitter::Channel, const char *);
194 void color_selection_done (bool status);
195 bool color_selection_deleted (GdkEventAny *);
198 void do_request (UIRequest*);
204 #endif /* __pbd_gtk_ui_h__ */