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livetrax/libs/gtkmm2ext/gtk_ui.cc
Robin Gareus 4983eb565d Only update tooltips if there is an actual change -- #7268
Changing a tooltip resets the timeout. In one particular case,
while rolling, AudioClock::set() is calling set_tooltip() at a rate
faster than the tooltip timeout and prevents tooltip from showing at all
(even if there is no actual change to the tooltip text).
Alas, there is no trivial fix for this UI side and there may be other
such cases. A central check is more than practical.
2018-04-12 02:54:55 +02:00

750 lines
18 KiB
C++

/*
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/replace_all.h"
#include "gtkmm2ext/application.h"
#include "gtkmm2ext/bindings.h"
#include "gtkmm2ext/gtk_ui.h"
#include "gtkmm2ext/textviewer.h"
#include "gtkmm2ext/utils.h"
#include "gtkmm2ext/window_title.h"
#include "gtkmm2ext/actions.h"
#include "gtkmm2ext/activatable.h"
#include "gtkmm2ext/actions.h"
#include "gtkmm2ext/gui_thread.h"
#include "pbd/i18n.h"
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace Glib;
using namespace PBD;
using std::map;
UI* UI::theGtkUI = 0;
BaseUI::RequestType Gtkmm2ext::NullMessage = BaseUI::new_request_type();
BaseUI::RequestType Gtkmm2ext::ErrorMessage = 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 */
template class AbstractUI<Gtkmm2ext::UIRequest>;
UI::UI (string application_name, string thread_name, int *argc, char ***argv)
: AbstractUI<UIRequest> (thread_name)
, _receiver (*this)
, global_bindings (0)
, errors (0)
{
theMain = new Main (argc, argv);
pthread_set_name ("gui");
_active = false;
if (!theGtkUI) {
theGtkUI = this;
} else {
fatal << "duplicate UI requested" << endmsg;
abort(); /* NOTREACHED */
}
/* the GUI event loop runs in the main thread of the app,
which is assumed to have called this.
*/
run_loop_thread = Threads::Thread::self();
/* store "this" as the UI-for-thread of this thread, same argument
as for previous line.
*/
set_event_loop_for_thread (this);
/* we will be receiving requests */
EventLoop::register_request_buffer_factory ("gui", request_buffer_factory);
/* attach our request source to the default main context */
attach_request_source ();
errors = new TextViewer (800,600);
errors->text().set_editable (false);
errors->text().set_name ("ErrorText");
errors->signal_unmap().connect (sigc::bind (sigc::ptr_fun (&ActionManager::uncheck_toggleaction), X_("<Actions>/Editor/toggle-log-window")));
Glib::set_application_name (application_name);
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 (sigc::bind (sigc::ptr_fun (just_hide_it), (Window *) errors));
errors->set_type_hint (Gdk::WINDOW_TYPE_HINT_UTILITY);
//load_rcfile (rcfile);
/* instantiate the Application singleton */
Application::instance();
}
UI::~UI ()
{
_receiver.hangup ();
delete (errors);
}
bool
UI::caller_is_ui_thread ()
{
return Threads::Thread::self() == run_loop_thread;
}
int
UI::load_rcfile (string path, bool themechange)
{
/* Yes, pointers to Glib::RefPtr. If these are not kept around,
* a segfault somewhere deep in the wonderfully robust glib will result.
* This does not occur if wiget.get_style is used instead of rc.get_style below,
* except that doesn't actually work...
*/
static Glib::RefPtr<Style>* fatal_style = 0;
static Glib::RefPtr<Style>* error_style = 0;
static Glib::RefPtr<Style>* warning_style = 0;
static Glib::RefPtr<Style>* info_style = 0;
if (path.length() == 0) {
return -1;
}
if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_REGULAR)) {
error << "UI: couldn't find rc file \""
<< path
<< '"'
<< endmsg;
return -1;
}
RC rc (path.c_str());
//this is buggy in gtkmm for some reason, so use C
//RC::reset_styles (Gtk::Settings::get_default());
gtk_rc_reset_styles (gtk_settings_get_default());
theme_changed.emit();
if (themechange) {
return 0; //Don't continue on every time there is a theme change
}
/* have to pack widgets into a toplevel window so that styles will stick */
Window temp_window (WINDOW_TOPLEVEL);
temp_window.ensure_style ();
HBox box;
Label fatal_widget;
Label error_widget;
Label warning_widget;
Label info_widget;
RefPtr<Gtk::Style> style;
RefPtr<TextBuffer> buffer (errors->text().get_buffer());
box.pack_start (fatal_widget);
box.pack_start (error_widget);
box.pack_start (warning_widget);
box.pack_start (info_widget);
error_ptag = buffer->create_tag();
error_mtag = buffer->create_tag();
fatal_ptag = buffer->create_tag();
fatal_mtag = buffer->create_tag();
warning_ptag = buffer->create_tag();
warning_mtag = buffer->create_tag();
info_ptag = buffer->create_tag();
info_mtag = buffer->create_tag();
fatal_widget.set_name ("FatalMessage");
delete fatal_style;
/* This next line and the similar ones below are sketchily
* guessed to fix #2885. I think maybe that problems occur
* because with gtk_rc_get_style (to quote its docs) "no
* refcount is added to the returned style". So I've switched
* this to use Glib::wrap with take_copy == true, which requires
* all the nasty casts and calls to plain-old-C GTK.
*
* At worst I think this causes a memory leak; at least it appears
* to fix the bug.
*
* I could be wrong about any or all of the above.
*/
fatal_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (fatal_widget.gobj())), true));
fatal_ptag->property_font_desc().set_value((*fatal_style)->get_font());
fatal_ptag->property_foreground_gdk().set_value((*fatal_style)->get_fg(STATE_ACTIVE));
fatal_ptag->property_background_gdk().set_value((*fatal_style)->get_bg(STATE_ACTIVE));
fatal_mtag->property_font_desc().set_value((*fatal_style)->get_font());
fatal_mtag->property_foreground_gdk().set_value((*fatal_style)->get_fg(STATE_NORMAL));
fatal_mtag->property_background_gdk().set_value((*fatal_style)->get_bg(STATE_NORMAL));
error_widget.set_name ("ErrorMessage");
delete error_style;
error_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (error_widget.gobj())), true));
error_ptag->property_font_desc().set_value((*error_style)->get_font());
error_ptag->property_foreground_gdk().set_value((*error_style)->get_fg(STATE_ACTIVE));
error_ptag->property_background_gdk().set_value((*error_style)->get_bg(STATE_ACTIVE));
error_mtag->property_font_desc().set_value((*error_style)->get_font());
error_mtag->property_foreground_gdk().set_value((*error_style)->get_fg(STATE_NORMAL));
error_mtag->property_background_gdk().set_value((*error_style)->get_bg(STATE_NORMAL));
warning_widget.set_name ("WarningMessage");
delete warning_style;
warning_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (warning_widget.gobj())), true));
warning_ptag->property_font_desc().set_value((*warning_style)->get_font());
warning_ptag->property_foreground_gdk().set_value((*warning_style)->get_fg(STATE_ACTIVE));
warning_ptag->property_background_gdk().set_value((*warning_style)->get_bg(STATE_ACTIVE));
warning_mtag->property_font_desc().set_value((*warning_style)->get_font());
warning_mtag->property_foreground_gdk().set_value((*warning_style)->get_fg(STATE_NORMAL));
warning_mtag->property_background_gdk().set_value((*warning_style)->get_bg(STATE_NORMAL));
info_widget.set_name ("InfoMessage");
delete info_style;
info_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (info_widget.gobj())), true));
info_ptag->property_font_desc().set_value((*info_style)->get_font());
info_ptag->property_foreground_gdk().set_value((*info_style)->get_fg(STATE_ACTIVE));
info_ptag->property_background_gdk().set_value((*info_style)->get_bg(STATE_ACTIVE));
info_mtag->property_font_desc().set_value((*info_style)->get_font());
info_mtag->property_foreground_gdk().set_value((*info_style)->get_fg(STATE_NORMAL));
info_mtag->property_background_gdk().set_value((*info_style)->get_bg(STATE_NORMAL));
return 0;
}
void
UI::run (Receiver &old_receiver)
{
_receiver.listen_to (error);
_receiver.listen_to (info);
_receiver.listen_to (warning);
_receiver.listen_to (fatal);
/* stop the old receiver (text/console) once we hit the first idle */
Glib::signal_idle().connect (bind_return (mem_fun (old_receiver, &Receiver::hangup), false));
if (starting ()) {
return;
}
_active = true;
theMain->run ();
_active = false;
return;
}
bool
UI::running ()
{
return _active;
}
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)
{
set_tip(&w, tip, "");
}
void
UI::set_tip (Widget &w, const std::string& tip)
{
set_tip(&w, tip.c_str(), "");
}
void
UI::set_tip (Widget *w, const gchar *tip, const gchar *hlp)
{
UIRequest *req = get_request (SetTip);
std::string msg(tip);
Glib::RefPtr<Gtk::Action> action = w->get_action();
if (!action) {
Gtkmm2ext::Activatable* activatable;
if ((activatable = dynamic_cast<Gtkmm2ext::Activatable*>(w))) {
action = activatable->get_related_action();
}
}
if (action) {
Bindings* bindings = (Bindings*) w->get_data ("ardour-bindings");
if (!bindings) {
Gtk::Window* win = (Gtk::Window*) w->get_toplevel();
if (win) {
bindings = (Bindings*) win->get_data ("ardour-bindings");
}
}
if (!bindings) {
bindings = global_bindings;
}
if (bindings) {
Bindings::Operation op;
KeyboardKey kb = bindings->get_binding_for_action (action, op);
string shortcut = kb.display_label ();
if (!shortcut.empty()) {
replace_all (shortcut, "<", "");
replace_all (shortcut, ">", "-");
msg.append(_("\n\nShortcut: ")).append (shortcut);
}
}
}
if (req == 0) {
return;
}
req->widget = w;
req->msg = msg.c_str();
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 */
/** Create a PBD::EventLoop::InvalidationRecord and attach a callback
* to a given sigc::trackable so that PBD::EventLoop::invalidate_request
* is called when that trackable is destroyed.
*/
PBD::EventLoop::InvalidationRecord*
__invalidator (sigc::trackable& trackable, const char* file, int line)
{
PBD::EventLoop::InvalidationRecord* ir = new PBD::EventLoop::InvalidationRecord;
ir->file = file;
ir->line = line;
trackable.add_destroy_notify_callback (ir, PBD::EventLoop::invalidate_request);
return ir;
}
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) {
#ifndef NDEBUG
if (getenv ("DEBUG_THREADED_SIGNALS")) {
cerr << "call slot for " << event_loop_name() << endl;
}
#endif
req->the_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) {
gchar* old = gtk_widget_get_tooltip_markup (req->widget->gobj());
if (
(old && req->msg && strcmp (old, req->msg))
||
((old == NULL) != (req->msg == NULL || req->msg[0] == '\0'))
) {
gtk_widget_set_tooltip_markup (req->widget->gobj(), req->msg);
}
} else {
error << "GtkUI: unknown request type "
<< (int) req->type
<< endmsg;
}
}
/*======================================================================
Error Display
======================================================================*/
void
UI::dump_errors (std::ostream& ostr)
{
Glib::Threads::Mutex::Lock lm (error_lock);
ostr << endl << X_("Errors/Messages:") << endl;
for (list<string>::const_iterator i = error_stack.begin(); i != error_stack.end(); ++i) {
ostr << *i << endl;
}
ostr << endl;
}
void
UI::receive (Transmitter::Channel chn, const char *str)
{
{
Glib::Threads::Mutex::Lock lm (error_lock);
switch (chn) {
case Transmitter::Fatal:
error_stack.push_back (string (X_("FATAL: ")) + str);
break;
case Transmitter::Error:
error_stack.push_back (string (X_("ERROR: ")) + str);
break;
case Transmitter::Warning:
error_stack.push_back (string (X_("WARNING: ")) + str);
break;
case Transmitter::Info:
error_stack.push_back (string (X_("INFO: ")) + str);
break;
case Transmitter::Throw:
error_stack.push_back (string (X_("THROW: ")) + str);
break;
}
}
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);
}
}
void
UI::process_error_message (Transmitter::Channel chn, const char *str)
{
RefPtr<Style> style;
RefPtr<TextBuffer::Tag> ptag;
RefPtr<TextBuffer::Tag> mtag;
const char *prefix;
size_t prefix_len;
bool fatal_received = false;
switch (chn) {
case Transmitter::Fatal:
prefix = "[FATAL]: ";
ptag = fatal_ptag;
mtag = fatal_mtag;
prefix_len = 9;
fatal_received = true;
break;
case Transmitter::Error:
prefix = "[ERROR]: ";
ptag = error_ptag;
mtag = error_mtag;
prefix_len = 9;
break;
case Transmitter::Info:
prefix = "[INFO]: ";
ptag = info_ptag;
mtag = info_mtag;
prefix_len = 8;
break;
case Transmitter::Warning:
prefix = "[WARNING]: ";
ptag = warning_ptag;
mtag = warning_mtag;
prefix_len = 11;
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 {
if (!ptag || !mtag) {
/* oops, message sent before we set up tags - don't crash */
cerr << prefix << str << endl;
} else {
display_message (prefix, prefix_len, ptag, mtag, str);
}
}
errors->text().get_buffer()->end_user_action();
}
void
UI::show_errors ()
{
Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-log-window"));
if (!act) {
return;
}
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
if (tact) {
tact->set_active ();
}
}
void
UI::toggle_errors ()
{
Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-log-window"));
if (!act) {
return;
}
Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
if (tact->get_active()) {
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)
{
Dialog win;
Label label (message);
Button quit (_("Press To Exit"));
HBox hpacker;
win.set_default_size (400, 100);
WindowTitle title(Glib::get_application_name());
title += ": Fatal Error";
win.set_title (title.get_string());
win.set_position (WIN_POS_MOUSE);
win.set_border_width (12);
win.get_vbox()->pack_start (label, true, true);
hpacker.pack_start (quit, true, false);
win.get_vbox()->pack_start (hpacker, 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 string& text)
{
if (!caller_is_ui_thread()) {
error << "non-UI threads can't use UI::popup_error"
<< endmsg;
return;
}
MessageDialog msg (text);
msg.set_title (string_compose (_("I'm sorry %1, I can't do that"), g_get_user_name()));
msg.set_wmclass (X_("error"), Glib::get_application_name());
msg.set_position (WIN_POS_MOUSE);
msg.run ();
}
void
UI::flush_pending (float timeout)
{
if (!caller_is_ui_thread()) {
error << "non-UI threads cannot call UI::flush_pending()"
<< endmsg;
return;
}
int64_t end = g_get_monotonic_time () + timeout * 1e6;
gtk_main_iteration();
while (gtk_events_pending()) {
if (timeout > 0 && end < g_get_monotonic_time ()) {
cerr << "UI::flush_pending timed out after " << timeout << "s.\n";
break;
}
gtk_main_iteration();
}
}
bool
UI::just_hide_it (GdkEventAny* /*ev*/, Window *win)
{
win->hide ();
return true;
}
void
UI::color_selection_done (bool status)
{
color_picked = status;
Main::quit ();
}
bool
UI::color_selection_deleted (GdkEventAny* /*ev*/)
{
Main::quit ();
return true;
}