Paul Davis
c03c3332e8
We now check from the focus widget (if any) for any widget heirarchy bindings, and try to use them. Next use the "top level" bindings passed in (top level is quoted because they may be owned by a tab, rather than a window). Finally, if the event is still not handled, try the global bindings This model more closely matches what I think a reasonable programmer with experience of other GUI toolkits would expect, and allows us to have multiple bindings present (though not simultaneously used) in a given window
340 lines
11 KiB
C++
340 lines
11 KiB
C++
/*
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* Copyright (C) 2005-2007 Doug McLain <doug@nostar.net>
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* Copyright (C) 2005-2017 Tim Mayberry <mojofunk@gmail.com>
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* Copyright (C) 2005-2019 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2005 Karsten Wiese <fzuuzf@googlemail.com>
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* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
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* Copyright (C) 2006-2015 David Robillard <d@drobilla.net>
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* Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2008-2010 Sakari Bergen <sakari.bergen@beatwaves.net>
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* Copyright (C) 2012-2019 Robin Gareus <robin@gareus.org>
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* Copyright (C) 2013-2015 Colin Fletcher <colin.m.fletcher@googlemail.com>
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* Copyright (C) 2013-2016 John Emmas <john@creativepost.co.uk>
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* Copyright (C) 2013-2016 Nick Mainsbridge <mainsbridge@gmail.com>
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* Copyright (C) 2014-2018 Ben Loftis <ben@harrisonconsoles.com>
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* Copyright (C) 2015 André Nusser <andre.nusser@googlemail.com>
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* Copyright (C) 2016-2018 Len Ovens <len@ovenwerks.net>
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* Copyright (C) 2017 Johannes Mueller <github@johannes-mueller.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifdef WAF_BUILD
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#include "gtk2ardour-config.h"
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#include "gtk2ardour-version.h"
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#endif
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#include "ardour_ui.h"
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#include "debug.h"
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#include "keyboard.h"
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#include "public_editor.h"
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#include "virtual_keyboard_window.h"
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using namespace ARDOUR;
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using namespace PBD;
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using namespace Gtkmm2ext;
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using namespace ArdourWidgets;
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using namespace Gtk;
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using namespace std;
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bool
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ARDOUR_UI::key_event_handler (GdkEventKey* ev, Gtk::Window* event_window)
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{
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Gtkmm2ext::Bindings* bindings = 0;
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Gtk::Window* window = 0;
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if (virtual_keyboard_window && virtual_keyboard_window->is_visible()) {
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if (gtk_window_propagate_key_event (virtual_keyboard_window->gobj(), ev)) {
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return true;
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}
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}
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/* until we get ardour bindings working, we are not handling key
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* releases yet.
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*/
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if (ev->type != GDK_KEY_PRESS) {
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return false;
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}
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if (event_window == &_main_window) {
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window = event_window;
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/* find current tab contents */
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Gtk::Widget* w = _tabs.get_nth_page (_tabs.get_current_page());
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/* see if it uses the ardour binding system */
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if (w) {
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bindings = reinterpret_cast<Gtkmm2ext::Bindings*>(w->get_data ("ardour-bindings"));
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}
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("main window key event, bindings = %1, global = %2\n", bindings, &global_bindings));
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} else {
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window = event_window;
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/* see if window uses ardour binding system */
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bindings = reinterpret_cast<Gtkmm2ext::Bindings*>(window->get_data ("ardour-bindings"));
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}
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/* An empty binding set is treated as if it doesn't exist */
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if (bindings && bindings->empty()) {
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bindings = 0;
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}
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return key_press_focus_accelerator_handler (*window, ev, bindings);
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}
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static Gtkmm2ext::Bindings*
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get_bindings_from_widget_heirarchy (GtkWidget** w)
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{
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void* p = NULL;
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while (*w) {
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if ((p = g_object_get_data (G_OBJECT(*w), "ardour-bindings")) != 0) {
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break;
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}
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*w = gtk_widget_get_parent (*w);
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}
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return reinterpret_cast<Gtkmm2ext::Bindings*> (p);
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}
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bool
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ARDOUR_UI::key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey* ev, Gtkmm2ext::Bindings* top_level_bindings)
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{
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GtkWindow* win = window.gobj();
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GtkWidget* focus = gtk_window_get_focus (win);
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bool special_handling_of_unmodified_accelerators = false;
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const guint mask = (Keyboard::RelevantModifierKeyMask & ~(Gdk::SHIFT_MASK|Gdk::LOCK_MASK));
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if (focus) {
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/* some widget has keyboard focus */
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if (GTK_IS_ENTRY(focus) || Keyboard::some_magic_widget_has_focus()) {
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/* A particular kind of focusable widget currently has keyboard
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* focus. All unmodified key events should go to that widget
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* first and not be used as an accelerator by default
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*/
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special_handling_of_unmodified_accelerators = true;
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}
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}
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("Win = %1 [title = %9] focus = %7 (%8) Key event: code = %2 [%10] state = %3 special handling ? %4 magic widget focus ? %5 focus widget %6 named %7 mods ? %8\n",
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win,
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ev->keyval,
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Gtkmm2ext::show_gdk_event_state (ev->state),
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special_handling_of_unmodified_accelerators,
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Keyboard::some_magic_widget_has_focus(),
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focus,
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(focus ? gtk_widget_get_name (focus) : "no focus widget"),
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((ev->state & mask) ? "yes" : "no"),
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window.get_title(),
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gdk_keyval_name (ev->keyval)))
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/* This exists to allow us to override the way GTK handles
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key events. The normal sequence is:
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a) event is delivered to a GtkWindow
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b) accelerators/mnemonics are activated
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c) if (b) didn't handle the event, propagate to
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the focus widget and/or focus chain
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The problem with this is that if the accelerators include
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keys without modifiers, such as the space bar or the
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letter "e", then pressing the key while typing into
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a text entry widget results in the accelerator being
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activated, instead of the desired letter appearing
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in the text entry.
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There is no good way of fixing this, but this
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represents a compromise. The idea is that
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key events involving modifiers (not Shift)
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get routed into the activation pathway first, then
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get propagated to the focus widget if necessary.
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If the key event doesn't involve modifiers,
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we deliver to the focus widget first, thus allowing
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it to get "normal text" without interference
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from acceleration.
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Of course, this can also be problematic: if there
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is a widget with focus, then it will swallow
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all "normal text" accelerators.
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*/
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if (!special_handling_of_unmodified_accelerators || (ev->state & mask)) {
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/* no special handling or there are modifiers in effect: accelerate first */
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DEBUG_TRACE (DEBUG::Accelerators, "\tactivate, then propagate\n");
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KeyboardKey k (ev->state, ev->keyval);
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/* Check heirarchy from current focus widget upwards */
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while (focus) {
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Gtkmm2ext::Bindings* focus_bindings = get_bindings_from_widget_heirarchy (&focus);
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if (focus_bindings) {
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tusing widget bindings %1 @ %2 for this event\n", focus_bindings->name(), focus_bindings));
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if (focus_bindings->activate (k, Bindings::Press)) {
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return true;
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}
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}
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if (focus) {
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focus = gtk_widget_get_parent (focus);
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}
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}
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/* Use any "top level" bindings passed to us (could be from a
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* top level tab or a top level window)
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*/
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tusing top level bindings %1 @ %2 for this event\n", top_level_bindings->name(), top_level_bindings));
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if (top_level_bindings && top_level_bindings->activate (k, Bindings::Press)) {
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DEBUG_TRACE (DEBUG::Accelerators, "\t\thandled\n");
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return true;
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}
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/* Use any global bindings */
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tnot yet handled, try global bindings (%1)\n", global_bindings));
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if (global_bindings && global_bindings->activate (k, Bindings::Press)) {
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DEBUG_TRACE (DEBUG::Accelerators, "\t\thandled\n");
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return true;
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}
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DEBUG_TRACE (DEBUG::Accelerators, "\tnot handled by binding activation, now propagate to window\n");
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if (gtk_window_propagate_key_event (win, ev)) {
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DEBUG_TRACE (DEBUG::Accelerators, "\tpropagate handled\n");
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return true;
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}
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} else {
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/* no modifiers, propagate first */
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DEBUG_TRACE (DEBUG::Accelerators, "\tpropagate, then activate\n");
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if (gtk_window_propagate_key_event (win, ev)) {
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DEBUG_TRACE (DEBUG::Accelerators, "\thandled by propagate\n");
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return true;
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}
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DEBUG_TRACE (DEBUG::Accelerators, "\tpropagation didn't handle, so activate\n");
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KeyboardKey k (ev->state, ev->keyval);
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while (focus) {
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Gtkmm2ext::Bindings* focus_bindings = get_bindings_from_widget_heirarchy (&focus);
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if (focus_bindings) {
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tusing widget bindings %1 @ %2 for this event\n", focus_bindings->name(), focus_bindings));
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if (focus_bindings->activate (k, Bindings::Press)) {
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return true;
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}
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}
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if (focus) {
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focus = gtk_widget_get_parent (focus);
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}
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}
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/* Use any "top level" bindings passed to us (could be from a
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* top level tab or a top level window)
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*/
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tusing top level bindings %1 @ %2 for this event\n", top_level_bindings->name(), top_level_bindings));
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if (top_level_bindings && top_level_bindings->activate (k, Bindings::Press)) {
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DEBUG_TRACE (DEBUG::Accelerators, "\t\thandled\n");
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return true;
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}
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DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tnot yet handled, try global bindings (%1)\n", global_bindings));
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if (global_bindings && global_bindings->activate (k, Bindings::Press)) {
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DEBUG_TRACE (DEBUG::Accelerators, "\t\thandled\n");
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return true;
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}
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}
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DEBUG_TRACE (DEBUG::Accelerators, "\tnot handled\n");
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return true;
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}
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gint
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ARDOUR_UI::transport_numpad_timeout ()
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{
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_numpad_locate_happening = false;
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if (_numpad_timeout_connection.connected() )
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_numpad_timeout_connection.disconnect();
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return 1;
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}
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void
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ARDOUR_UI::transport_numpad_decimal ()
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{
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_numpad_timeout_connection.disconnect();
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if (_numpad_locate_happening) {
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if (editor) editor->goto_nth_marker(_pending_locate_num - 1);
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_numpad_locate_happening = false;
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} else {
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_pending_locate_num = 0;
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_numpad_locate_happening = true;
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_numpad_timeout_connection = Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::transport_numpad_timeout), 2*1000);
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}
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}
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void
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ARDOUR_UI::transport_numpad_event (int num)
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{
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if ( _numpad_locate_happening ) {
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_pending_locate_num = _pending_locate_num*10 + num;
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} else {
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switch (num) {
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case 0: toggle_roll(false, false); break;
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case 1: transport_rewind(1); break;
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case 2: transport_forward(1); break;
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case 3: transport_record(true); break;
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case 4: toggle_session_auto_loop(); break;
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case 5: transport_record(false); toggle_session_auto_loop(); break;
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case 6: toggle_punch(); break;
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case 7: toggle_click(); break;
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case 8: toggle_auto_return(); break;
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case 9: toggle_follow_edits(); break;
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}
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}
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}
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