1 /*
2  * Copyright (C) 2005-2016 Paul Davis <paul@linuxaudiosystems.com>
3  * Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
4  * Copyright (C) 2008-2010 David Robillard <d@drobilla.net>
5  * Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
6  * Copyright (C) 2012-2016 Tim Mayberry <mojofunk@gmail.com>
7  * Copyright (C) 2014-2018 Ben Loftis <ben@harrisonconsoles.com>
8  * Copyright (C) 2015-2016 Nick Mainsbridge <mainsbridge@gmail.com>
9  * Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License along
22  * with this program; if not, write to the Free Software Foundation, Inc.,
23  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24  */
25 
26 #include "pbd/convert.h"
27 #include "pbd/error.h"
28 #include "pbd/file_utils.h"
29 #include "pbd/basename.h"
30 
31 #include "ardour/filesystem_paths.h"
32 #include "ardour/revision.h"
33 
34 #include "ardour_ui.h"
35 #include "public_editor.h"
36 #include "keyboard.h"
37 #include "opts.h"
38 #include "ui_config.h"
39 
40 #include "pbd/i18n.h"
41 
42 using namespace std;
43 using namespace Gtk;
44 using namespace PBD;
45 using namespace ARDOUR;
46 using Gtkmm2ext::Keyboard;
47 
48 #ifdef __APPLE__
49 guint ArdourKeyboard::constraint_mod = Keyboard::PrimaryModifier;
50 #else
51 guint ArdourKeyboard::constraint_mod = Keyboard::TertiaryModifier;
52 #endif
53 
54 /* RegionSlipContentsDrag */
55 guint ArdourKeyboard::slip_contents_mod = Keyboard::PrimaryModifier|Keyboard::TertiaryModifier;
56 
57 /* TrimDrag::motion() */
58 guint ArdourKeyboard::trim_overlap_mod = Keyboard::TertiaryModifier;
59 
60 /* TrimDrag::start_grab() */
61 guint ArdourKeyboard::trim_anchored_mod = Keyboard::PrimaryModifier|Keyboard::TertiaryModifier;
62 
63 /* ControlPointDrag::motion() && LineDrag::motion()*/
64 guint ArdourKeyboard::fine_adjust_mod = Keyboard::PrimaryModifier|Keyboard::SecondaryModifier; // XXX better just 2ndary
65 
66 /* ControlPointDrag::start_grab() && MarkerDrag::motion() */
67 guint ArdourKeyboard::push_points_mod = Keyboard::PrimaryModifier|Keyboard::Level4Modifier;
68 
69 /* NoteResizeDrag::start_grab() */
70 guint ArdourKeyboard::note_size_relative_mod = Keyboard::TertiaryModifier; // XXX better: 2ndary
71 
ArdourKeyboard(ARDOUR_UI & ardour_ui)72 ArdourKeyboard::ArdourKeyboard (ARDOUR_UI& ardour_ui) : ui (ardour_ui)
73 {
74 	Keyboard::RelevantModifierKeysChanged.connect (sigc::mem_fun (*this, &ArdourKeyboard::reset_relevant_modifier_key_mask));
75 }
76 
77 void
find_bindings_files(map<string,string> & files)78 ArdourKeyboard::find_bindings_files (map<string,string>& files)
79 {
80 	vector<std::string> found;
81 	Searchpath spath = ardour_config_search_path();
82 
83 	find_files_matching_pattern (found, spath, string_compose ("*%1", Keyboard::binding_filename_suffix));
84 
85 	if (found.empty()) {
86 		return;
87 	}
88 
89 	for (vector<std::string>::iterator x = found.begin(); x != found.end(); ++x) {
90 		std::string path(*x);
91 		pair<string,string> namepath;
92 		namepath.second = path;
93 		namepath.first = PBD::basename_nosuffix (path);
94 		files.insert (namepath);
95 	}
96 }
97 
98 void
setup_keybindings()99 ArdourKeyboard::setup_keybindings ()
100 {
101 	string keybindings_path = ARDOUR_COMMAND_LINE::keybindings_path;
102 	string default_bindings = string_compose ("%1%2", UIConfiguration::instance().get_default_bindings(), Keyboard::binding_filename_suffix);
103 	vector<string> strs;
104 
105 	binding_files.clear ();
106 
107 	find_bindings_files (binding_files);
108 
109 	/* set up the per-user bindings path */
110 
111 	string lowercase_program_name = downcase (string(PROGRAM_NAME));
112 
113 	/* extract and append minor vesion */
114 	std::string rev (revision);
115 	std::size_t pos = rev.find_first_of("-");
116 	if (pos != string::npos && pos > 0) {
117 		lowercase_program_name += "-";
118 		lowercase_program_name += rev.substr (0, pos);
119 	}
120 
121 	user_keybindings_path = Glib::build_filename (user_config_directory(), lowercase_program_name + binding_filename_suffix);
122 
123 	if (Glib::file_test (user_keybindings_path, Glib::FILE_TEST_EXISTS)) {
124 		std::pair<string,string> newpair;
125 		newpair.first = _("your own");
126 		newpair.second = user_keybindings_path;
127 		binding_files.insert (newpair);
128 	}
129 
130 	/* check to see if they gave a style name ("ergonomic") or an actual filename (*.bindings)
131 	*/
132 
133 	if (!keybindings_path.empty() && keybindings_path.find (binding_filename_suffix) == string::npos) {
134 
135 		// just a style name - allow user to
136 		// specify the layout type.
137 
138 		char* layout;
139 
140 		if ((layout = getenv ("ARDOUR_KEYBOARD_LAYOUT")) != 0 && layout[0] != '\0') {
141 
142 			/* user-specified keyboard layout */
143 
144 			keybindings_path += '-';
145 			keybindings_path += layout;
146 
147 		} else {
148 
149 			/* default to US/ANSI - we have to pick something */
150 
151 			keybindings_path += "-us";
152 		}
153 
154 		keybindings_path += binding_filename_suffix;
155 	}
156 
157 	if (keybindings_path.empty()) {
158 
159 		/* no path or binding name given: check the user one first */
160 
161 		if (!Glib::file_test (user_keybindings_path, Glib::FILE_TEST_EXISTS)) {
162 
163 			keybindings_path = "";
164 
165 		} else {
166 
167 			keybindings_path = user_keybindings_path;
168 		}
169 	}
170 
171 	/* if we still don't have a path at this point, use the default */
172 
173 	if (keybindings_path.empty()) {
174 		keybindings_path = default_bindings;
175 	}
176 
177 	while (true) {
178 
179 		if (!Glib::path_is_absolute (keybindings_path)) {
180 
181 			/* not absolute - look in the usual places */
182 			std::string keybindings_file;
183 
184 			if (!find_file (ardour_config_search_path(), keybindings_path, keybindings_file)) {
185 
186 				if (keybindings_path == default_bindings) {
187 					error << string_compose (_("Default keybindings not found - %1 will be hard to use!"), PROGRAM_NAME) << endmsg;
188 					return;
189 				} else {
190 					warning << string_compose (_("Key bindings file \"%1\" not found. Default bindings used instead"),
191 								   keybindings_path)
192 						<< endmsg;
193 					keybindings_path = default_bindings;
194 				}
195 
196 			} else {
197 
198 				/* use it */
199 
200 				keybindings_path = keybindings_file;
201 				break;
202 
203 			}
204 
205 		} else {
206 
207 			/* path is absolute already */
208 
209 			if (!Glib::file_test (keybindings_path, Glib::FILE_TEST_EXISTS)) {
210 				if (keybindings_path == default_bindings) {
211 					error << string_compose (_("Default keybindings not found - %1 will be hard to use!"), PROGRAM_NAME) << endmsg;
212 					return;
213 				} else {
214 					keybindings_path = default_bindings;
215 				}
216 
217 			} else {
218 				break;
219 			}
220 		}
221 	}
222 
223 	load_keybindings (keybindings_path);
224 
225 	/* catch changes made via some GTK mechanism */
226 
227 	// GtkAccelMap* accelmap = gtk_accel_map_get();
228 	// g_signal_connect (accelmap, "changed", (GCallback) accel_map_changed, this);
229 }
230 
231 XMLNode&
get_state(void)232 ArdourKeyboard::get_state (void)
233 {
234 	XMLNode* node = &Keyboard::get_state ();
235 
236 	node->set_property ("constraint-modifier", constraint_mod);
237 	node->set_property ("slip-contents-modifier", slip_contents_mod);
238 	node->set_property ("trim-overlap-modifier", trim_overlap_mod);
239 	node->set_property ("trim-anchored-modifier", trim_anchored_mod);
240 	node->set_property ("fine-adjust-modifier", fine_adjust_mod);
241 	node->set_property ("push-points-modifier", push_points_mod);
242 	node->set_property ("note-size-relative-modifier", note_size_relative_mod);
243 
244 	return *node;
245 }
246 
247 int
set_state(const XMLNode & node,int version)248 ArdourKeyboard::set_state (const XMLNode& node, int version)
249 {
250 	node.get_property ("constraint-modifier", constraint_mod);
251 	node.get_property ("slip-contents-modifier", slip_contents_mod);
252 	node.get_property ("trim-overlap-modifier", trim_overlap_mod);
253 	node.get_property ("trim-anchored-modifier", trim_anchored_mod);
254 	node.get_property ("fine-adjust-modifier", fine_adjust_mod);
255 	node.get_property ("push-points-modifier", push_points_mod);
256 	node.get_property ("note-size-relative-modifier", note_size_relative_mod);
257 
258 	return Keyboard::set_state (node, version);
259 }
260 
261 void
reset_relevant_modifier_key_mask()262 ArdourKeyboard::reset_relevant_modifier_key_mask ()
263 {
264 	RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | constraint_mod);
265 	RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | slip_contents_mod);
266 	RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | trim_overlap_mod);
267 	RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | trim_anchored_mod);
268 	RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | fine_adjust_mod);
269 	RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | push_points_mod);
270 	RelevantModifierKeyMask = GdkModifierType (RelevantModifierKeyMask | note_size_relative_mod);
271 }
272 
273 /* Snap and snap delta modifiers may contain each other, so we use the
274  * following two methods to sort that out:
275  */
276 bool
indicates_snap(guint state)277 ArdourKeyboard::indicates_snap (guint state)
278 {
279 	const bool contains_s = Keyboard::modifier_state_contains (state, Keyboard::snap_modifier ());
280 	const bool contains_d = Keyboard::modifier_state_contains (state, Keyboard::snap_delta_modifier ());
281 	const bool s_contains_d = Keyboard::modifier_state_contains (Keyboard::snap_modifier (), Keyboard::snap_delta_modifier ());
282 
283 	return  (contains_s && ((contains_d && s_contains_d) || !contains_d));
284 }
285 
286 bool
indicates_snap_delta(guint state)287 ArdourKeyboard::indicates_snap_delta (guint state)
288 {
289 	const bool contains_d = Keyboard::modifier_state_contains (state, Keyboard::snap_delta_modifier ());
290 	const bool contains_s = Keyboard::modifier_state_contains (state, Keyboard::snap_modifier ());
291 	const bool d_contains_s = Keyboard::modifier_state_contains (Keyboard::snap_delta_modifier (), Keyboard::snap_modifier ());
292 
293 	return (contains_d && ((contains_s && d_contains_s) || !contains_s));
294 }
295 
296 /* Constraint and copy modifiers are both in effect at the beginning of some drags, and may be set ambiguously */
297 bool
indicates_copy(guint state)298 ArdourKeyboard::indicates_copy (guint state)
299 {
300 	const bool contains_c = Keyboard::modifier_state_contains (state, Keyboard::CopyModifier);
301 	const bool equals_cs = Keyboard::modifier_state_equals (state, constraint_modifier ());
302 
303 	return  contains_c && !equals_cs;
304 }
305 
306 bool
indicates_constraint(guint state)307 ArdourKeyboard::indicates_constraint (guint state)
308 {
309 	const bool contains_cs = Keyboard::modifier_state_contains (state, constraint_modifier ());
310 	const bool equals_c = Keyboard::modifier_state_equals (state, Keyboard::CopyModifier);
311 
312 	return contains_cs && !equals_c;
313 }
314 
315 void
set_constraint_modifier(guint mod)316 ArdourKeyboard::set_constraint_modifier (guint mod)
317 {
318 	constraint_mod = mod;
319 	the_keyboard().reset_relevant_modifier_key_mask();
320 }
321 
322 void
set_slip_contents_modifier(guint mod)323 ArdourKeyboard::set_slip_contents_modifier (guint mod)
324 {
325 	slip_contents_mod = mod;
326 	the_keyboard().reset_relevant_modifier_key_mask();
327 }
328 
329 void
set_trim_overlap_modifier(guint mod)330 ArdourKeyboard::set_trim_overlap_modifier (guint mod)
331 {
332 	trim_overlap_mod = mod;
333 	the_keyboard().reset_relevant_modifier_key_mask();
334 }
335 
336 void
set_trim_anchored_modifier(guint mod)337 ArdourKeyboard::set_trim_anchored_modifier (guint mod)
338 {
339 	trim_anchored_mod = mod;
340 	the_keyboard().reset_relevant_modifier_key_mask();
341 }
342 
343 void
set_fine_adjust_modifier(guint mod)344 ArdourKeyboard::set_fine_adjust_modifier (guint mod)
345 {
346 	fine_adjust_mod = mod;
347 	the_keyboard().reset_relevant_modifier_key_mask();
348 }
349 
350 void
set_push_points_modifier(guint mod)351 ArdourKeyboard::set_push_points_modifier (guint mod)
352 {
353 	push_points_mod = mod;
354 	the_keyboard().reset_relevant_modifier_key_mask();
355 }
356 
357 void
set_note_size_relative_modifier(guint mod)358 ArdourKeyboard::set_note_size_relative_modifier (guint mod)
359 {
360 	note_size_relative_mod = mod;
361 	the_keyboard().reset_relevant_modifier_key_mask();
362 }
363 
364 Selection::Operation
selection_type(guint state)365 ArdourKeyboard::selection_type (guint state)
366 {
367 	/* note that there is no modifier for "Add" */
368 
369 	if (modifier_state_equals (state, RangeSelectModifier)) {
370 		return Selection::Extend;
371 	} else if (modifier_state_equals (state, PrimaryModifier)) {
372 		return Selection::Toggle;
373 	} else {
374 		return Selection::Set;
375 	}
376 }
377