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livetrax/libs/gtkmm2ext/actions.cc

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/*
Copyright (C) 2005 Paul 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.
*/
#include <cstring>
#include <vector>
#include <string>
#include <list>
#include <stack>
#include <stdint.h>
#include <boost/shared_ptr.hpp>
#include <gtk/gtkaccelmap.h>
#include <gtk/gtkuimanager.h>
#include <gtk/gtkactiongroup.h>
#include <gtkmm.h>
#include <gtkmm/accelmap.h>
#include <gtkmm/uimanager.h>
#include <glibmm/miscutils.h>
#include "pbd/error.h"
#include "pbd/stacktrace.h"
#include "gtkmm2ext/actions.h"
#include "gtkmm2ext/utils.h"
#include "pbd/i18n.h"
using namespace std;
using namespace Gtk;
using namespace Glib;
using namespace sigc;
using namespace PBD;
using namespace Gtkmm2ext;
typedef std::map<std::string, Glib::RefPtr<Gtk::Action> > ActionMap;
static ActionMap actions;
typedef std::vector<Glib::RefPtr<Gtk::ActionGroup> > ActionGroups;
static ActionGroups groups;
RefPtr<UIManager> ActionManager::ui_manager;
string ActionManager::unbound_string = X_("--");
struct ActionState {
GtkAction* action;
bool sensitive;
ActionState (GtkAction* a, bool s) : action (a), sensitive (s) {}
};
typedef std::vector<ActionState> ActionStates;
static ActionStates action_states_to_restore;
static bool actions_disabled = false;
void
ActionManager::init ()
{
ui_manager = UIManager::create ();
}
void
ActionManager::save_action_states ()
{
for (ActionGroups::iterator g = groups.begin(); g != groups.end(); ++g) {
/* the C++ API for functions used here appears to be broken in
gtkmm2.6, so we fall back to the C level.
*/
GtkActionGroup* group = (*g)->gobj();
for (GList* acts = gtk_action_group_list_actions (group); acts; acts = g_list_next (acts)) {
GtkAction* action = (GtkAction*) acts->data;
action_states_to_restore.push_back (ActionState (action, gtk_action_get_sensitive (action)));
}
}
}
void
ActionManager::set_sensitive (Glib::RefPtr<ActionGroup> group, bool yn)
{
/* the C++ API for functions used here appears to be broken in
gtkmm2.6, so we fall back to the C level.
*/
GtkActionGroup* grp = group->gobj();
for (GList* acts = gtk_action_group_list_actions (grp); acts; acts = g_list_next (acts)) {
GtkAction* action = (GtkAction*) acts->data;
gtk_action_set_sensitive (action, yn);
}
}
void
ActionManager::enable_active_actions ()
{
if (!actions_disabled) {
return ;
}
for (ActionStates::iterator i = action_states_to_restore.begin(); i != action_states_to_restore.end(); ++i) {
if ((*i).action && (*i).sensitive) {
gtk_action_set_sensitive ((*i).action, true);
}
}
action_states_to_restore.clear ();
actions_disabled = false;
}
void
ActionManager::disable_active_actions ()
{
if (actions_disabled == true ) {
return ;
}
// save all action's states to action_states_to_restore
save_action_states ();
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// set all action's states disabled
for (ActionStates::iterator i = action_states_to_restore.begin(); i != action_states_to_restore.end(); ++i) {
if ((*i).sensitive) {
gtk_action_set_sensitive ((*i).action, false);
}
}
actions_disabled = true;
}
Widget*
ActionManager::get_widget (const char * name)
{
return ui_manager->get_widget (name);
}
void
ActionManager::set_sensitive (vector<RefPtr<Action> >& actions, bool state)
{
// if actions weren't disabled
if (!actions_disabled) {
for (vector<RefPtr<Action> >::iterator i = actions.begin(); i != actions.end(); ++i) {
(*i)->set_sensitive (state);
}
}
else {
// actions were disabled
// so we should just set necessary action's states in action_states_to_restore
for (vector<RefPtr<Action> >::iterator i = actions.begin(); i != actions.end(); ++i) {
// go through action_states_to_restore and set state of actions
for (ActionStates::iterator j = action_states_to_restore.begin(); j != action_states_to_restore.end(); ++j) {
// all actions should have their individual name, so we can use it for comparison
if (gtk_action_get_name ((*j).action) == (*i)->get_name ()) {
(*j).sensitive = state;
}
}
}
}
}
void
ActionManager::check_toggleaction (const string& n)
{
set_toggleaction_state (n, true);
}
void
ActionManager::uncheck_toggleaction (const string& n)
{
set_toggleaction_state (n, false);
}
void
ActionManager::set_toggleaction_state (const string& n, bool s)
{
char const * name = n.c_str ();
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const char *last_slash = strrchr (name, '/');
if (last_slash == 0) {
fatal << string_compose ("programmer error: %1 %2", "illegal toggle action name", name) << endmsg;
abort(); /*NOTREACHED*/
return;
}
/* 10 = strlen ("<Actions>/") */
size_t len = last_slash - (name + 10);
char* group_name = new char[len+1];
memcpy (group_name, name + 10, len);
group_name[len] = '\0';
const char* action_name = last_slash + 1;
if (!set_toggleaction_state (group_name, action_name, s)) {
error << string_compose (_("Unknown action name: %1/%2"), group_name, action_name) << endmsg;
}
delete [] group_name;
}
bool
ActionManager::set_toggleaction_state (const char* group_name, const char* action_name, bool s)
{
RefPtr<Action> act = get_action (group_name, action_name);
if (act) {
RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
if (tact) {
tact->set_active (s);
return true;
}
}
return false;
}
void
ActionManager::do_action (const char* group, const char*action)
{
Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (group, action);
if (act) {
act->activate ();
}
}
void
ActionManager::set_toggle_action (const char* group, const char*action, bool yn)
{
Glib::RefPtr<Gtk::ToggleAction> tact = ActionManager::get_toggle_action (group, action);
tact->set_active (yn);
}
RefPtr<Action>
ActionManager::get_action (const string& name, bool or_die)
{
ActionMap::const_iterator a = actions.find (name);
if (a != actions.end()) {
return a->second;
}
if (or_die) {
::abort ();
}
cerr << "Failed to find action: [" << name << ']' << endl;
return RefPtr<Action>();
}
RefPtr<ToggleAction>
ActionManager::get_toggle_action (const string& name, bool or_die)
{
RefPtr<Action> act = get_action (name, or_die);
if (!act) {
return RefPtr<ToggleAction>();
}
return Glib::RefPtr<ToggleAction>::cast_dynamic (act);
}
RefPtr<RadioAction>
ActionManager::get_radio_action (const string& name, bool or_die)
{
RefPtr<Action> act = get_action (name, or_die);
if (!act) {
return RefPtr<RadioAction>();
}
return Glib::RefPtr<RadioAction>::cast_dynamic (act);
}
RefPtr<Action>
ActionManager::get_action (char const * group_name, char const * action_name, bool or_die)
{
string fullpath (group_name);
fullpath += '/';
fullpath += action_name;
ActionMap::const_iterator a = actions.find (fullpath);
if (a != actions.end()) {
return a->second;
}
if (or_die) {
::abort ();
}
cerr << "Failed to find action (2): [" << fullpath << ']' << endl;
PBD::stacktrace (std::cerr, 20);
return RefPtr<Action>();
}
RefPtr<ToggleAction>
ActionManager::get_toggle_action (char const * group_name, char const * action_name, bool or_die)
{
RefPtr<Action> act = get_action (group_name, action_name, or_die);
if (!act) {
return RefPtr<ToggleAction>();
}
return Glib::RefPtr<ToggleAction>::cast_dynamic (act);
}
RefPtr<RadioAction>
ActionManager::get_radio_action (char const * group_name, char const * action_name, bool or_die)
{
RefPtr<Action> act = get_action (group_name, action_name, or_die);
if (!act) {
return RefPtr<RadioAction>();
}
return Glib::RefPtr<RadioAction>::cast_dynamic (act);
}
RefPtr<ActionGroup>
ActionManager::create_action_group (void * owner, string const & name)
{
for (ActionGroups::iterator g = groups.begin(); g != groups.end(); ++g) {
if ((*g)->get_name () == name) {
return *g;
}
}
RefPtr<ActionGroup> g = ActionGroup::create (name);
g->set_data (X_("owner"), owner);
groups.push_back (g);
/* this is one of the places where our own Action management code
has to touch the GTK one, because we want the GtkUIManager to
be able to create widgets (particularly Menus) from our actions.
This is a a necessary step for that to happen.
*/
if (g) {
ActionManager::ui_manager->insert_action_group (g);
}
return g;
}
RefPtr<ActionGroup>
ActionManager::get_action_group (string const & name)
{
for (ActionGroups::iterator g = groups.begin(); g != groups.end(); ++g) {
if ((*g)->get_name () == name) {
return *g;
}
}
return RefPtr<ActionGroup> ();
}
RefPtr<Action>
ActionManager::register_action (RefPtr<ActionGroup> group, const char* name, const char* label)
{
string fullpath;
RefPtr<Action> act = Action::create (name, label);
fullpath = group->get_name();
fullpath += '/';
fullpath += name;
if (actions.insert (ActionMap::value_type (fullpath, act)).second) {
group->add (act);
return act;
}
/* already registered */
return RefPtr<Action> ();
}
RefPtr<Action>
ActionManager::register_action (RefPtr<ActionGroup> group,
const char* name, const char* label, sigc::slot<void> sl)
{
string fullpath;
RefPtr<Action> act = Action::create (name, label);
fullpath = group->get_name();
fullpath += '/';
fullpath += name;
if (actions.insert (ActionMap::value_type (fullpath, act)).second) {
group->add (act, sl);
return act;
}
/* already registered */
return RefPtr<Action>();
}
RefPtr<Action>
ActionManager::register_radio_action (RefPtr<ActionGroup> group,
Gtk::RadioAction::Group& rgroup,
const char* name, const char* label,
sigc::slot<void> sl)
{
string fullpath;
RefPtr<Action> act = RadioAction::create (rgroup, name, label);
RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
fullpath = group->get_name();
fullpath += '/';
fullpath += name;
if (actions.insert (ActionMap::value_type (fullpath, act)).second) {
group->add (act, sl);
return act;
}
/* already registered */
return RefPtr<Action>();
}
RefPtr<Action>
ActionManager::register_radio_action (RefPtr<ActionGroup> group,
Gtk::RadioAction::Group& rgroup,
const char* name, const char* label,
sigc::slot<void,GtkAction*> sl,
int value)
{
string fullpath;
RefPtr<Action> act = RadioAction::create (rgroup, name, label);
RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
ract->property_value() = value;
fullpath = group->get_name();
fullpath += '/';
fullpath += name;
if (actions.insert (ActionMap::value_type (fullpath, act)).second) {
group->add (act, sigc::bind (sl, act->gobj()));
return act;
}
/* already registered */
return RefPtr<Action>();
}
RefPtr<Action>
ActionManager::register_toggle_action (RefPtr<ActionGroup> group,
const char* name, const char* label, sigc::slot<void> sl)
{
string fullpath;
fullpath = group->get_name();
fullpath += '/';
fullpath += name;
RefPtr<Action> act = ToggleAction::create (name, label);
if (actions.insert (ActionMap::value_type (fullpath, act)).second) {
group->add (act, sl);
return act;
}
/* already registered */
return RefPtr<Action>();
}
void
ActionManager::get_actions (void* owner, std::vector<Glib::RefPtr<Gtk::Action> >& acts)
{
for (ActionMap::const_iterator a = actions.begin(); a != actions.end(); ++a) {
if (owner) {
Glib::RefPtr<Gtk::ActionGroup> group = a->second->property_action_group ();
if (group->get_data (X_("owner")) == owner) {
acts.push_back (a->second);
}
} else {
acts.push_back (a->second);
}
}
}
void
ActionManager::get_all_actions (std::vector<std::string>& paths,
std::vector<std::string>& labels,
std::vector<std::string>& tooltips,
std::vector<std::string>& keys,
std::vector<RefPtr<Action> >& acts)
{
for (ActionMap::const_iterator a = actions.begin(); a != actions.end(); ++a) {
Glib::RefPtr<Action> act = a->second;
paths.push_back (act->get_accel_path());
labels.push_back (act->get_label());
tooltips.push_back (act->get_tooltip());
acts.push_back (act);
/* foreach binding */
#if 0
Bindings* bindings = (*map)->bindings();
if (bindings) {
KeyboardKey key;
Bindings::Operation op;
key = bindings->get_binding_for_action (*act, op);
if (key == KeyboardKey::null_key()) {
keys.push_back (string());
} else {
keys.push_back (key.display_label());
}
} else {
keys.push_back (string());
}
}
#endif
}
}