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>
45 #define ABSTRACT_UI_EXPORTS
46 #include "pbd/abstract_ui.h"
47 #include "pbd/ringbufferNPT.h"
49 #include "pbd/error.h"
50 #include "pbd/receiver.h"
52 #include "gtkmm2ext/visibility.h"
60 extern BaseUI::RequestType NullMessage;
61 extern BaseUI::RequestType ErrorMessage;
62 extern BaseUI::RequestType CallSlot;
63 extern BaseUI::RequestType TouchDisplay;
64 extern BaseUI::RequestType StateChange;
65 extern BaseUI::RequestType SetTip;
66 extern BaseUI::RequestType AddIdle;
67 extern BaseUI::RequestType AddTimeout;
69 struct LIBGTKMM2EXT_API UIRequest : public BaseUI::BaseRequestObject {
71 /* this once used anonymous unions to merge elements
72 that are never part of the same request. that makes
73 the creation of a legal copy constructor difficult
74 because of the semantics of the slot member.
79 Gtk::StateType new_state;
80 int (*function)(void *);
82 Transmitter::Channel chn;
91 if (type == ErrorMessage && msg) {
92 /* msg was strdup()'ed */
93 free (const_cast<char *>(msg));
98 class LIBGTKMM2EXT_API UI : public AbstractUI<UIRequest>
101 class MyReceiver : public Receiver {
103 MyReceiver (UI& ui) : _ui (ui) {}
104 void receive (Transmitter::Channel chn, const char *msg) {
105 _ui.receive (chn, msg);
111 MyReceiver _receiver;
114 UI (std::string name, int *argc, char **argv[]);
117 static UI *instance() { return theGtkUI; }
119 /* receiver interface */
121 void receive (Transmitter::Channel, const char *);
123 /* Abstract UI interfaces */
125 bool caller_is_ui_thread ();
127 /* Gtk-UI specific interfaces */
131 int load_rcfile (std::string, bool themechange = false);
132 void run (Receiver &old_receiver);
134 void set_state (Gtk::Widget *w, Gtk::StateType state);
135 void popup_error (const std::string& text);
136 void flush_pending ();
137 void toggle_errors ();
139 void touch_display (Touchable *);
140 void set_tip (Gtk::Widget &w, const gchar *tip);
141 void set_tip (Gtk::Widget &w, const std::string &tip);
142 void set_tip (Gtk::Widget *w, const gchar *tip, const gchar *hlp="");
143 void idle_add (int (*func)(void *), void *arg);
145 Gtk::Main& main() const { return *theMain; }
147 template<class T> static bool idle_delete (T *obj) { delete obj; return false; }
148 template<class T> static void delete_when_idle (T *obj) {
149 Glib::signal_idle().connect (bind (slot (&UI::idle_delete<T>), obj));
152 template<class T> void delete_in_self (T *obj) {
153 call_slot (boost::bind (&UI::delete_in_self, this, obj));
156 Gdk::Color get_color (const std::string& prompt, bool& picked, const Gdk::Color *initial = 0);
158 /* starting is sent just before we enter the main loop,
159 stopping just after we return from it (at the top level)
162 virtual int starting() = 0;
164 sigc::signal<void> theme_changed;
166 static bool just_hide_it (GdkEventAny *, Gtk::Window *);
169 virtual void handle_fatal (const char *);
170 virtual void display_message (const char *prefix, gint prefix_len,
171 Glib::RefPtr<Gtk::TextBuffer::Tag> ptag, Glib::RefPtr<Gtk::TextBuffer::Tag> mtag,
179 #ifndef GTK_NEW_TOOLTIP_API
183 Glib::RefPtr<Gtk::TextBuffer::Tag> error_ptag;
184 Glib::RefPtr<Gtk::TextBuffer::Tag> error_mtag;
185 Glib::RefPtr<Gtk::TextBuffer::Tag> fatal_ptag;
186 Glib::RefPtr<Gtk::TextBuffer::Tag> fatal_mtag;
187 Glib::RefPtr<Gtk::TextBuffer::Tag> info_ptag;
188 Glib::RefPtr<Gtk::TextBuffer::Tag> info_mtag;
189 Glib::RefPtr<Gtk::TextBuffer::Tag> warning_ptag;
190 Glib::RefPtr<Gtk::TextBuffer::Tag> warning_mtag;
192 static void signal_pipe_callback (void *, gint, GdkInputCondition);
193 void process_error_message (Transmitter::Channel, const char *);
196 void color_selection_done (bool status);
197 bool color_selection_deleted (GdkEventAny *);
200 void do_request (UIRequest*);
206 #endif /* __pbd_gtk_ui_h__ */