13
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livetrax/libs/gtkmm2ext/keyboard.cc

588 lines
16 KiB
C++

/*
Copyright (C) 2001 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 <vector>
#include <algorithm>
#include <fstream>
#include <iostream>
#include <ctype.h>
#include <gtkmm/widget.h>
#include <gtkmm/window.h>
#include <gtkmm/accelmap.h>
#include <gdk/gdkkeysyms.h>
#include "pbd/error.h"
#include "pbd/file_utils.h"
#include "pbd/search_path.h"
#include "pbd/xml++.h"
#include "pbd/debug.h"
#include "gtkmm2ext/keyboard.h"
#include "gtkmm2ext/actions.h"
#include "gtkmm2ext/debug.h"
#include "i18n.h"
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace std;
guint Keyboard::edit_but = 3;
guint Keyboard::edit_mod = GDK_CONTROL_MASK;
guint Keyboard::delete_but = 3;
guint Keyboard::delete_mod = GDK_SHIFT_MASK;
guint Keyboard::insert_note_but = 1;
guint Keyboard::insert_note_mod = GDK_CONTROL_MASK;
guint Keyboard::snap_mod = GDK_MOD3_MASK;
#ifdef GTKOSX
uint Keyboard::PrimaryModifier = GDK_MOD2_MASK; // Command
guint Keyboard::SecondaryModifier = GDK_CONTROL_MASK; // Control
guint Keyboard::TertiaryModifier = GDK_SHIFT_MASK; // Shift
guint Keyboard::Level4Modifier = GDK_MOD1_MASK; // Alt/Option
guint Keyboard::CopyModifier = GDK_CONTROL_MASK; // Control
guint Keyboard::RangeSelectModifier = GDK_SHIFT_MASK;
guint Keyboard::button2_modifiers = Keyboard::SecondaryModifier|Keyboard::Level4Modifier;
const char* Keyboard::primary_modifier_name() { return _("Command"); }
const char* Keyboard::secondary_modifier_name() { return _("Control"); }
const char* Keyboard::tertiary_modifier_name() { return S_("Key|Shift"); }
const char* Keyboard::level4_modifier_name() { return _("Option"); }
const char* Keyboard::copy_modifier_name() { return _("Control"); }
const char* Keyboard::rangeselect_modifier_name() { return S_("Key|Shift"); }
#else
guint Keyboard::PrimaryModifier = GDK_CONTROL_MASK; // Control
guint Keyboard::SecondaryModifier = GDK_MOD1_MASK; // Alt/Option
guint Keyboard::TertiaryModifier = GDK_SHIFT_MASK; // Shift
guint Keyboard::Level4Modifier = GDK_MOD4_MASK; // Mod4/Windows
guint Keyboard::CopyModifier = GDK_CONTROL_MASK;
guint Keyboard::RangeSelectModifier = GDK_SHIFT_MASK;
guint Keyboard::button2_modifiers = 0; /* not used */
const char* Keyboard::primary_modifier_name() { return _("Control"); }
const char* Keyboard::secondary_modifier_name() { return _("Alt"); }
const char* Keyboard::tertiary_modifier_name() { return S_("Key|Shift"); }
const char* Keyboard::level4_modifier_name() { return _("Meta"); }
const char* Keyboard::copy_modifier_name() { return _("Control"); }
const char* Keyboard::rangeselect_modifier_name() { return S_("Key|Shift"); }
#endif
guint Keyboard::GainFineScaleModifier = Keyboard::PrimaryModifier;
guint Keyboard::GainExtraFineScaleModifier = Keyboard::SecondaryModifier;
guint Keyboard::ScrollZoomVerticalModifier = Keyboard::SecondaryModifier;
guint Keyboard::ScrollZoomHorizontalModifier = Keyboard::PrimaryModifier;
guint Keyboard::ScrollHorizontalModifier = Keyboard::TertiaryModifier;
Keyboard* Keyboard::_the_keyboard = 0;
Gtk::Window* Keyboard::current_window = 0;
bool Keyboard::_some_magic_widget_has_focus = false;
std::string Keyboard::user_keybindings_path;
bool Keyboard::can_save_keybindings = false;
bool Keyboard::bindings_changed_after_save_became_legal = false;
map<string,string> Keyboard::binding_files;
string Keyboard::_current_binding_name;
map<AccelKey,pair<string,string>,Keyboard::AccelKeyLess> Keyboard::release_keys;
/* set this to initially contain the modifiers we care about, then track changes in ::set_edit_modifier() etc. */
GdkModifierType Keyboard::RelevantModifierKeyMask;
void
Keyboard::magic_widget_grab_focus ()
{
_some_magic_widget_has_focus = true;
}
void
Keyboard::magic_widget_drop_focus ()
{
_some_magic_widget_has_focus = false;
}
bool
Keyboard::some_magic_widget_has_focus ()
{
return _some_magic_widget_has_focus;
}
Keyboard::Keyboard ()
{
if (_the_keyboard == 0) {
_the_keyboard = this;
_current_binding_name = _("Unknown");
}
RelevantModifierKeyMask = (GdkModifierType) gtk_accelerator_get_default_mod_mask ();
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | PrimaryModifier);
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | SecondaryModifier);
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | TertiaryModifier);
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | Level4Modifier);
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | CopyModifier);
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | RangeSelectModifier);
gtk_accelerator_set_default_mod_mask (RelevantModifierKeyMask);
snooper_id = gtk_key_snooper_install (_snooper, (gpointer) this);
}
Keyboard::~Keyboard ()
{
gtk_key_snooper_remove (snooper_id);
}
XMLNode&
Keyboard::get_state (void)
{
XMLNode* node = new XMLNode ("Keyboard");
char buf[32];
snprintf (buf, sizeof (buf), "%d", edit_but);
node->add_property ("edit-button", buf);
snprintf (buf, sizeof (buf), "%d", edit_mod);
node->add_property ("edit-modifier", buf);
snprintf (buf, sizeof (buf), "%d", delete_but);
node->add_property ("delete-button", buf);
snprintf (buf, sizeof (buf), "%d", delete_mod);
node->add_property ("delete-modifier", buf);
snprintf (buf, sizeof (buf), "%d", snap_mod);
node->add_property ("snap-modifier", buf);
snprintf (buf, sizeof (buf), "%d", insert_note_but);
node->add_property ("insert-note-button", buf);
snprintf (buf, sizeof (buf), "%d", insert_note_mod);
node->add_property ("insert-note-modifier", buf);
return *node;
}
int
Keyboard::set_state (const XMLNode& node, int /*version*/)
{
const XMLProperty* prop;
if ((prop = node.property ("edit-button")) != 0) {
sscanf (prop->value().c_str(), "%d", &edit_but);
}
if ((prop = node.property ("edit-modifier")) != 0) {
sscanf (prop->value().c_str(), "%d", &edit_mod);
}
if ((prop = node.property ("delete-button")) != 0) {
sscanf (prop->value().c_str(), "%d", &delete_but);
}
if ((prop = node.property ("delete-modifier")) != 0) {
sscanf (prop->value().c_str(), "%d", &delete_mod);
}
if ((prop = node.property ("snap-modifier")) != 0) {
sscanf (prop->value().c_str(), "%d", &snap_mod);
}
if ((prop = node.property ("insert-note-button")) != 0) {
sscanf (prop->value().c_str(), "%d", &insert_note_but);
}
if ((prop = node.property ("insert-note-modifier")) != 0) {
sscanf (prop->value().c_str(), "%d", &insert_note_mod);
}
return 0;
}
gint
Keyboard::_snooper (GtkWidget *widget, GdkEventKey *event, gpointer data)
{
return ((Keyboard *) data)->snooper (widget, event);
}
gint
Keyboard::snooper (GtkWidget *widget, GdkEventKey *event)
{
uint32_t keyval;
bool ret = false;
DEBUG_TRACE (
DEBUG::Keyboard,
string_compose (
"Snoop widget %1 name: [%6] key %2 type %3 state %4 magic %5\n",
widget, event->keyval, event->type, event->state, _some_magic_widget_has_focus,
gtk_widget_get_name (widget)
)
);
if (event->keyval == GDK_Shift_R) {
keyval = GDK_Shift_L;
} else if (event->keyval == GDK_Control_R) {
keyval = GDK_Control_L;
} else {
keyval = event->keyval;
}
if (event->state & ScrollZoomVerticalModifier) {
/* There is a special and rather hacky situation in Editor which makes
it useful to know when the modifier key for vertical zoom has been
released, so emit a signal here (see Editor::_stepping_axis_view).
Note that the state bit for the modifier key is set for the key-up
event when the modifier is released, but not the key-down when it
is pressed, so we get here on key-up, which is what we want.
*/
ZoomVerticalModifierReleased (); /* EMIT SIGNAL */
}
if (event->type == GDK_KEY_PRESS) {
if (find (state.begin(), state.end(), keyval) == state.end()) {
state.push_back (keyval);
sort (state.begin(), state.end());
} else {
/* key is already down. if its also used for release,
prevent auto-repeat events.
*/
for (map<AccelKey,two_strings,AccelKeyLess>::iterator k = release_keys.begin(); k != release_keys.end(); ++k) {
const AccelKey& ak (k->first);
if (keyval == ak.get_key() && (Gdk::ModifierType)((event->state & Keyboard::RelevantModifierKeyMask) | Gdk::RELEASE_MASK) == ak.get_mod()) {
DEBUG_TRACE (DEBUG::Keyboard, "Suppress auto repeat\n");
ret = true;
break;
}
}
}
} else if (event->type == GDK_KEY_RELEASE) {
State::iterator i;
if ((i = find (state.begin(), state.end(), keyval)) != state.end()) {
state.erase (i);
sort (state.begin(), state.end());
}
for (map<AccelKey,two_strings,AccelKeyLess>::iterator k = release_keys.begin(); k != release_keys.end(); ++k) {
const AccelKey& ak (k->first);
two_strings ts (k->second);
if (keyval == ak.get_key() && (Gdk::ModifierType)((event->state & Keyboard::RelevantModifierKeyMask) | Gdk::RELEASE_MASK) == ak.get_mod()) {
Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (ts.first.c_str(), ts.second.c_str());
if (act) {
DEBUG_TRACE (DEBUG::Keyboard, string_compose ("Activate %1 %2\n", ts.first, ts.second));
act->activate();
DEBUG_TRACE (DEBUG::Keyboard, string_compose ("Use repeat, suppress other\n", ts.first, ts.second));
ret = true;
}
break;
}
}
}
/* Special keys that we want to handle in
any dialog, no matter whether it uses
the regular set of accelerators or not
*/
if (event->type == GDK_KEY_RELEASE && modifier_state_equals (event->state, PrimaryModifier)) {
switch (event->keyval) {
case GDK_w:
close_current_dialog ();
ret = true;
break;
}
}
DEBUG_TRACE (DEBUG::Keyboard, string_compose ("snooper returns %1\n", ret));
return ret;
}
void
Keyboard::close_current_dialog ()
{
if (current_window) {
current_window->hide ();
current_window = 0;
}
}
bool
Keyboard::key_is_down (uint32_t keyval)
{
return find (state.begin(), state.end(), keyval) != state.end();
}
bool
Keyboard::enter_window (GdkEventCrossing *, Gtk::Window* win)
{
current_window = win;
DEBUG_TRACE (DEBUG::Keyboard, string_compose ("Entering window, title = %1\n", win->get_title()));
return false;
}
bool
Keyboard::leave_window (GdkEventCrossing *ev, Gtk::Window* /*win*/)
{
if (ev) {
switch (ev->detail) {
case GDK_NOTIFY_INFERIOR:
DEBUG_TRACE (DEBUG::Keyboard, "INFERIOR crossing ... out\n");
break;
case GDK_NOTIFY_VIRTUAL:
DEBUG_TRACE (DEBUG::Keyboard, "VIRTUAL crossing ... out\n");
/* fallthru */
default:
DEBUG_TRACE (DEBUG::Keyboard, "REAL crossing ... out\n");
DEBUG_TRACE (DEBUG::Keyboard, "Clearing current target\n");
state.clear ();
current_window = 0;
}
} else {
current_window = 0;
}
return false;
}
void
Keyboard::set_edit_button (guint but)
{
edit_but = but;
}
void
Keyboard::set_edit_modifier (guint mod)
{
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask & ~edit_mod);
edit_mod = mod;
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | edit_mod);
}
void
Keyboard::set_delete_button (guint but)
{
delete_but = but;
}
void
Keyboard::set_delete_modifier (guint mod)
{
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask & ~delete_mod);
delete_mod = mod;
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | delete_mod);
}
void
Keyboard::set_insert_note_button (guint but)
{
insert_note_but = but;
}
void
Keyboard::set_insert_note_modifier (guint mod)
{
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask & ~insert_note_mod);
insert_note_mod = mod;
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | insert_note_mod);
}
void
Keyboard::set_modifier (uint32_t newval, uint32_t& var)
{
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask & ~var);
var = newval;
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | var);
}
void
Keyboard::set_snap_modifier (guint mod)
{
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask & ~snap_mod);
snap_mod = mod;
RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | snap_mod);
}
bool
Keyboard::is_edit_event (GdkEventButton *ev)
{
return (ev->type == GDK_BUTTON_PRESS || ev->type == GDK_BUTTON_RELEASE) &&
(ev->button == Keyboard::edit_button()) &&
((ev->state & RelevantModifierKeyMask) == Keyboard::edit_modifier());
}
bool
Keyboard::is_insert_note_event (GdkEventButton *ev)
{
return (ev->type == GDK_BUTTON_PRESS || ev->type == GDK_BUTTON_RELEASE) &&
(ev->button == Keyboard::insert_note_button()) &&
((ev->state & RelevantModifierKeyMask) == Keyboard::insert_note_modifier());
}
bool
Keyboard::is_button2_event (GdkEventButton* ev)
{
#ifdef GTKOSX
return (ev->button == 2) ||
((ev->button == 1) &&
((ev->state & Keyboard::button2_modifiers) == Keyboard::button2_modifiers));
#else
return ev->button == 2;
#endif
}
bool
Keyboard::is_delete_event (GdkEventButton *ev)
{
return (ev->type == GDK_BUTTON_PRESS || ev->type == GDK_BUTTON_RELEASE) &&
(ev->button == Keyboard::delete_button()) &&
((ev->state & RelevantModifierKeyMask) == Keyboard::delete_modifier());
}
bool
Keyboard::is_context_menu_event (GdkEventButton *ev)
{
return (ev->type == GDK_BUTTON_PRESS || ev->type == GDK_BUTTON_RELEASE) &&
(ev->button == 3) &&
((ev->state & RelevantModifierKeyMask) == 0);
}
bool
Keyboard::no_modifiers_active (guint state)
{
return (state & RelevantModifierKeyMask) == 0;
}
bool
Keyboard::modifier_state_contains (guint state, ModifierMask mask)
{
return (state & mask) == (guint) mask;
}
bool
Keyboard::modifier_state_equals (guint state, ModifierMask mask)
{
return (state & RelevantModifierKeyMask) == (guint) mask;
}
void
Keyboard::keybindings_changed ()
{
if (Keyboard::can_save_keybindings) {
Keyboard::bindings_changed_after_save_became_legal = true;
}
Keyboard::save_keybindings ();
}
void
Keyboard::set_can_save_keybindings (bool yn)
{
can_save_keybindings = yn;
}
void
Keyboard::save_keybindings ()
{
if (can_save_keybindings && bindings_changed_after_save_became_legal) {
Gtk::AccelMap::save (user_keybindings_path);
}
}
bool
Keyboard::load_keybindings (string path)
{
try {
info << "Loading bindings from " << path << endl;
Gtk::AccelMap::load (path);
_current_binding_name = _("Unknown");
for (map<string,string>::iterator x = binding_files.begin(); x != binding_files.end(); ++x) {
if (path == x->second) {
_current_binding_name = x->first;
break;
}
}
} catch (...) {
error << string_compose (_("key bindings file not found at \"%2\" or contains errors."), path)
<< endmsg;
return false;
}
/* now find all release-driven bindings */
vector<string> groups;
vector<string> names;
vector<string> tooltips;
vector<AccelKey> bindings;
ActionManager::get_all_actions (groups, names, tooltips, bindings);
vector<string>::iterator g;
vector<AccelKey>::iterator b;
vector<string>::iterator n;
release_keys.clear ();
for (n = names.begin(), b = bindings.begin(), g = groups.begin(); n != names.end(); ++n, ++b, ++g) {
stringstream s;
s << "Action: " << *n << " Group: " << *g << " Binding: ";
if ((*b).get_key() != GDK_VoidSymbol) {
s << b->get_key() << " w/mod " << hex << b->get_mod() << dec << " = " << b->get_abbrev () << "\n";
} else {
s << "unbound\n";
}
DEBUG_TRACE (DEBUG::Bindings, s.str ());
}
for (n = names.begin(), b = bindings.begin(), g = groups.begin(); n != names.end(); ++n, ++b, ++g) {
if ((*b).get_mod() & Gdk::RELEASE_MASK) {
release_keys.insert (pair<AccelKey,two_strings> (*b, two_strings (*g, *n)));
}
}
return true;
}