ardour/livetrax
13
0
Fork 0
Code
7852cc219c
livetrax/libs/gtkmm2ext/gtk_ui.cc

560 lines
11 KiB
C++
Raw Blame History

/*
Copyright (C) 1999-2005 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 <cmath>
#include <fcntl.h>
#include <signal.h>
#include <unistd.h>
#include <cerrno>
#include <climits>
#include <cctype>
#include <gtkmm.h>
#include <pbd/error.h>
#include <pbd/touchable.h>
#include <pbd/failed_constructor.h>
#include <pbd/pthread_utils.h>
#include <pbd/stacktrace.h>
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/textviewer.h>
#include <gtkmm2ext/popup.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/window_title.h>
#include "i18n.h"
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace Glib;
using namespace PBD;
using std::map;
pthread_t UI::gui_thread;
UI *UI::theGtkUI = 0;
BaseUI::RequestType Gtkmm2ext::ErrorMessage = BaseUI::new_request_type();
BaseUI::RequestType Gtkmm2ext::Quit = BaseUI::new_request_type();
BaseUI::RequestType Gtkmm2ext::TouchDisplay = BaseUI::new_request_type();
BaseUI::RequestType Gtkmm2ext::StateChange = BaseUI::new_request_type();
BaseUI::RequestType Gtkmm2ext::SetTip = BaseUI::new_request_type();
BaseUI::RequestType Gtkmm2ext::AddIdle = BaseUI::new_request_type();
BaseUI::RequestType Gtkmm2ext::AddTimeout = BaseUI::new_request_type();
#include <pbd/abstract_ui.cc> /* instantiate the template */
UI::UI (string namestr, int *argc, char ***argv)
: AbstractUI<UIRequest> (namestr, true)
{
theMain = new Main (argc, argv);
tips = new Tooltips;
_active = false;
if (!theGtkUI) {
theGtkUI = this;
gui_thread = pthread_self ();
} else {
fatal << "duplicate UI requested" << endmsg;
/* NOTREACHED */
}
/* add the pipe to the select/poll loop that GDK does */
gdk_input_add (signal_pipe[0],
GDK_INPUT_READ,
UI::signal_pipe_callback,
this);
errors = new TextViewer (850,100);
errors->text().set_editable (false);
errors->text().set_name ("ErrorText");
Glib::set_application_name(namestr);
WindowTitle title(Glib::get_application_name());
title += _("Log");
errors->set_title (title.get_string());
errors->dismiss_button().set_name ("ErrorLogCloseButton");
errors->signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), (Window *) errors));
register_thread (pthread_self(), X_("GUI"));
//load_rcfile (rcfile);
}
UI::~UI ()
{
}
bool
UI::caller_is_ui_thread ()
{
return pthread_equal (gui_thread, pthread_self());
}
int
UI::load_rcfile (string path)
{
if (path.length() == 0) {
return -1;
}
if (access (path.c_str(), R_OK)) {
error << "UI: couldn't find rc file \""
<< path
<< '"'
<< endmsg;
return -1;
}
RC rc (path.c_str());
RC::reset_styles(Gtk::Settings::get_default());
return 0;
}
void
UI::run (Receiver &old_receiver)
{
listen_to (error);
listen_to (info);
listen_to (warning);
listen_to (fatal);
old_receiver.hangup ();
starting ();
_active = true;
theMain->run ();
_active = false;
stopping ();
hangup ();
return;
}
bool
UI::running ()
{
return _active;
}
void
UI::kill ()
{
if (_active) {
pthread_kill (gui_thread, SIGKILL);
}
}
void
UI::quit ()
{
UIRequest *req = get_request (Quit);
if (req == 0) {
return;
}
send_request (req);
}
static bool idle_quit ()
{
Main::quit ();
return true;
}
void
UI::do_quit ()
{
if (getenv ("ARDOUR_RUNNING_UNDER_VALGRIND")) {
Main::quit ();
} else {
Glib::signal_idle().connect (sigc::ptr_fun (idle_quit));
}
}
void
UI::touch_display (Touchable *display)
{
UIRequest *req = get_request (TouchDisplay);
if (req == 0) {
return;
}
req->display = display;
send_request (req);
}
void
UI::set_tip (Widget *w, const gchar *tip, const gchar *hlp)
{
UIRequest *req = get_request (SetTip);
if (req == 0) {
return;
}
req->widget = w;
req->msg = tip;
req->msg2 = hlp;
send_request (req);
}
void
UI::set_state (Widget *w, StateType state)
{
UIRequest *req = get_request (StateChange);
if (req == 0) {
return;
}
req->new_state = state;
req->widget = w;
send_request (req);
}
void
UI::idle_add (int (*func)(void *), void *arg)
{
UIRequest *req = get_request (AddIdle);
if (req == 0) {
return;
}
req->function = func;
req->arg = arg;
send_request (req);
}
/* END abstract_ui interfaces */
void
UI::signal_pipe_callback (void *arg, int fd, GdkInputCondition cond)
{
char buf[256];
/* flush (nonblocking) pipe */
while (read (fd, buf, 256) > 0);
((UI *) arg)->handle_ui_requests ();
}
void
UI::do_request (UIRequest* req)
{
if (req->type == ErrorMessage) {
process_error_message (req->chn, req->msg);
free (const_cast<char*>(req->msg)); /* it was strdup'ed */
req->msg = 0; /* don't free it again in the destructor */
} else if (req->type == Quit) {
do_quit ();
} else if (req->type == CallSlot) {
req->slot ();
} else if (req->type == TouchDisplay) {
req->display->touch ();
if (req->display->delete_after_touch()) {
delete req->display;
}
} else if (req->type == StateChange) {
req->widget->set_state (req->new_state);
} else if (req->type == SetTip) {
/* XXX need to figure out how this works */
} else {
error << "GtkUI: unknown request type "
<< (int) req->type
<< endmsg;
}
}
/*======================================================================
Error Display
======================================================================*/
void
UI::receive (Transmitter::Channel chn, const char *str)
{
if (caller_is_ui_thread()) {
process_error_message (chn, str);
} else {
UIRequest* req = get_request (ErrorMessage);
if (req == 0) {
return;
}
req->chn = chn;
req->msg = strdup (str);
send_request (req);
}
}
#define OLD_STYLE_ERRORS 1
void
UI::process_error_message (Transmitter::Channel chn, const char *str)
{
RefPtr<Style> style;
RefPtr<TextBuffer::Tag> ptag;
RefPtr<TextBuffer::Tag> mtag;
char *prefix;
size_t prefix_len;
bool fatal_received = false;
#ifndef OLD_STYLE_ERRORS
PopUp* popup = new PopUp (WIN_POS_CENTER, 0, true);
#endif
switch (chn) {
case Transmitter::Fatal:
prefix = "[FATAL]: ";
ptag = fatal_ptag;
mtag = fatal_mtag;
prefix_len = 9;
fatal_received = true;
break;
case Transmitter::Error:
#if OLD_STYLE_ERRORS
prefix = "[ERROR]: ";
ptag = error_ptag;
mtag = error_mtag;
prefix_len = 9;
#else
popup->set_name ("ErrorMessage");
popup->set_text (str);
popup->touch ();
return;
#endif
break;
case Transmitter::Info:
#if OLD_STYLE_ERRORS
prefix = "[INFO]: ";
ptag = info_ptag;
mtag = info_mtag;
prefix_len = 8;
#else
popup->set_name ("InfoMessage");
popup->set_text (str);
popup->touch ();
return;
#endif
break;
case Transmitter::Warning:
#if OLD_STYLE_ERRORS
prefix = "[WARNING]: ";
ptag = warning_ptag;
mtag = warning_mtag;
prefix_len = 11;
#else
popup->set_name ("WarningMessage");
popup->set_text (str);
popup->touch ();
return;
#endif
break;
default:
/* no choice but to use text/console output here */
cerr << "programmer error in UI::check_error_messages (channel = " << chn << ")\n";
::exit (1);
}
errors->text().get_buffer()->begin_user_action();
if (fatal_received) {
handle_fatal (str);
} else {
display_message (prefix, prefix_len, ptag, mtag, str);
if (!errors->is_visible()) {
toggle_errors();
}
}
errors->text().get_buffer()->end_user_action();
}
void
UI::toggle_errors ()
{
if (!errors->is_visible()) {
errors->set_position (WIN_POS_MOUSE);
errors->show ();
} else {
errors->hide ();
}
}
void
UI::display_message (const char *prefix, gint prefix_len, RefPtr<TextBuffer::Tag> ptag, RefPtr<TextBuffer::Tag> mtag, const char *msg)
{
RefPtr<TextBuffer> buffer (errors->text().get_buffer());
buffer->insert_with_tag(buffer->end(), prefix, ptag);
buffer->insert_with_tag(buffer->end(), msg, mtag);
buffer->insert_with_tag(buffer->end(), "\n", mtag);
errors->scroll_to_bottom ();
}
void
UI::handle_fatal (const char *message)
{
Window win (WINDOW_POPUP);
VBox packer;
Label label (message);
Button quit (_("Press To Exit"));
win.set_default_size (400, 100);
string title;
title = name();
title += ": Fatal Error";
win.set_title (title);
win.set_position (WIN_POS_MOUSE);
win.add (packer);
packer.pack_start (label, true, true);
packer.pack_start (quit, false, false);
quit.signal_clicked().connect(mem_fun(*this,&UI::quit));
win.show_all ();
win.set_modal (true);
theMain->run ();
exit (1);
}
void
UI::popup_error (const char *text)
{
PopUp *pup;
if (!caller_is_ui_thread()) {
error << "non-UI threads can't use UI::popup_error"
<< endmsg;
return;
}
pup = new PopUp (WIN_POS_MOUSE, 0, true);
pup->set_text (text);
pup->touch ();
}
void
UI::flush_pending ()
{
if (!caller_is_ui_thread()) {
error << "non-UI threads cannot call UI::flush_pending()"
<< endmsg;
return;
}
gtk_main_iteration();
while (gtk_events_pending()) {
gtk_main_iteration();
}
}
bool
UI::just_hide_it (GdkEventAny *ev, Window *win)
{
win->hide_all ();
return true;
}
Gdk::Color
UI::get_color (const string& prompt, bool& picked, const Gdk::Color* initial)
{
Gdk::Color color;
ColorSelectionDialog color_dialog (prompt);
color_dialog.set_modal (true);
color_dialog.get_cancel_button()->signal_clicked().connect (bind (mem_fun (*this, &UI::color_selection_done), false));
color_dialog.get_ok_button()->signal_clicked().connect (bind (mem_fun (*this, &UI::color_selection_done), true));
color_dialog.signal_delete_event().connect (mem_fun (*this, &UI::color_selection_deleted));
if (initial) {
color_dialog.get_colorsel()->set_current_color (*initial);
}
color_dialog.show_all ();
color_picked = false;
picked = false;
Main::run();
color_dialog.hide_all ();
if (color_picked) {
Gdk::Color f_rgba = color_dialog.get_colorsel()->get_current_color ();
color.set_red(f_rgba.get_red());
color.set_green(f_rgba.get_green());
color.set_blue(f_rgba.get_blue());
picked = true;
}
return color;
}
void
UI::color_selection_done (bool status)
{
color_picked = status;
Main::quit ();
}
bool
UI::color_selection_deleted (GdkEventAny *ev)
{
Main::quit ();
return true;
}
View Git Blame Copy Permalink