Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 258 insertions, 0 deletions

diff --git a/gtk2_ardour/keyboard_target.cc b/gtk2_ardour/keyboard_target.cc
new file mode 100644
index 0000000000..9f92d2f460
--- /dev/null
+++ b/gtk2_ardour/keyboard_target.cc
@@ -0,0 +1,258 @@
+/*
+    Copyright (C) 2001-2002 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.
+
+    $Id$
+*/
+
+#include <gdk/gdkkeysyms.h>
+#include <pbd/error.h>
+
+#include "keyboard.h"
+#include "keyboard_target.h"
+
+#include "i18n.h"
+
+using std::pair;
+
+KeyboardTarget::ActionMap KeyboardTarget::actions;
+
+KeyboardTarget::KeyboardTarget (Gtk::Window& win, string name)
+	: _window (win)
+{
+	_name = name;
+	Keyboard::the_keyboard().register_target (this);
+}
+
+KeyboardTarget::~KeyboardTarget ()
+{
+	GoingAway ();
+}
+
+void
+KeyboardTarget::key_release_event (GdkEventKey *event, Keyboard::State& state)
+{
+	// relax
+}
+
+void
+KeyboardTarget::key_press_event (GdkEventKey *event, Keyboard::State& state, bool& handled)
+{
+	KeyMap::iterator result;
+	
+	if ((result = keymap.find (state)) != keymap.end()) {
+		(*result).second ();
+		handled = true;
+	}
+}
+
+int
+KeyboardTarget::add_binding (string keystring, string action)
+{
+	KeyMap::iterator existing;
+	Keyboard::State  state;
+	KeyAction key_action = 0;
+
+	state = Keyboard::translate_key_name (keystring);
+
+	if (keystring.length() == 0) {
+		error << _("KeyboardTarget: empty string passed to add_binding.")
+		      << endmsg;
+		return -1;
+	}
+
+	if (state.size() == 0) {
+		error << compose(_("KeyboardTarget: no translation found for \"%1\""), keystring) << endmsg;
+		return -1;
+	}
+
+	if (find_action (action, key_action)) {
+		error << compose(_("KeyboardTarget: unknown action \"%1\""), action) << endmsg;
+		return -1;
+	}
+
+	/* remove any existing binding */
+
+	if ((existing = keymap.find (state)) != keymap.end()) {
+		keymap.erase (existing);
+	}
+	
+	keymap.insert (pair<Keyboard::State,KeyAction> (state, key_action));
+	bindings.insert (pair<string,string> (keystring, action));
+	return 0;
+}
+
+string
+KeyboardTarget::get_binding (string name)
+{
+	BindingMap::iterator i;
+	
+	for (i = bindings.begin(); i != bindings.end(); ++i) {
+
+		if (i->second == name) {
+
+			/* convert keystring to GTK format */
+
+			string str = i->first;
+			string gtkstr;
+			string::size_type p;
+
+			while (1) {
+
+				if ((p = str.find ('-')) == string::npos || (p == str.length() - 1)) {
+					break;
+				}
+
+				gtkstr += '<';
+				gtkstr += str.substr (0, p);
+				gtkstr += '>';
+
+				str = str.substr (p+1);
+
+			}
+
+			gtkstr += str;
+
+			if (gtkstr.length() == 0) {
+				return i->first;
+			} 
+
+			return gtkstr;
+		}
+	}
+	return string ();
+}
+
+void
+KeyboardTarget::show_all_actions ()
+{
+	ActionMap::iterator i;
+	
+	for (i = actions.begin(); i != actions.end(); ++i) {
+		cout << i->first << endl;
+	}
+}
+
+int
+KeyboardTarget::add_action (string name, KeyAction action)
+{
+	pair<string,KeyAction> newpair;
+	pair<ActionMap::iterator,bool> result;
+	newpair.first = name;
+	newpair.second = action;
+
+	result = actions.insert (newpair);
+	return result.second ? 0 : -1;
+}
+
+int
+KeyboardTarget::find_action (string name, KeyAction& action)
+{
+	map<string,KeyAction>::iterator i;
+
+	if ((i = actions.find (name)) != actions.end()) {
+		action = i->second;
+		return 0;
+	} else {
+		return -1;
+	}
+}
+
+int
+KeyboardTarget::remove_action (string name)
+{
+	map<string,KeyAction>::iterator i;
+
+	if ((i = actions.find (name)) != actions.end()) {
+		actions.erase (i);
+		return 0;
+	} else {
+		return -1;
+	}
+}
+
+XMLNode&
+KeyboardTarget::get_binding_state () const
+{
+	XMLNode *node = new XMLNode ("context");
+	BindingMap::const_iterator i;
+
+	node->add_property ("name", _name);
+       
+	for (i = bindings.begin(); i != bindings.end(); ++i) {
+		XMLNode *child;
+
+		child = new XMLNode ("binding");
+		child->add_property ("keys", i->first);
+		child->add_property ("action", i->second);
+		node->add_child_nocopy (*child);
+	}
+	
+	return *node;
+}
+	
+int
+KeyboardTarget::set_binding_state (const XMLNode& node)
+{
+	XMLNodeList nlist = node.children();
+	XMLNodeConstIterator niter;
+	XMLNode *child_node;
+
+	bindings.clear ();
+	keymap.clear ();
+
+	for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+		child_node = *niter;
+
+		if (child_node->name() == "context") {
+			XMLProperty *prop;
+			
+			if ((prop = child_node->property ("name")) != 0) {
+				if (prop->value() == _name) {
+					return load_bindings (*child_node);
+				}
+			}
+		}
+	}
+
+	return 0;
+}
+
+int
+KeyboardTarget::load_bindings (const XMLNode& node)
+{
+	XMLNodeList nlist = node.children();
+	XMLNodeConstIterator niter;
+
+	for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+		XMLProperty *keys;
+		XMLProperty *action;
+		
+		keys = (*niter)->property ("keys");
+		action = (*niter)->property ("action");
+
+		if (!keys || !action) {
+			error << _("misformed binding node - ignored") << endmsg;
+			continue;
+		}
+
+		add_binding (keys->value(), action->value());
+			
+	}
+
+	return 0;
+}
+