Commit | Line | Data |
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460b9539 | 1 | /* |
2 | * This file is part of DisOrder. | |
851bbc58 | 3 | * Copyright (C) 2006-2009 Richard Kettlewell |
460b9539 | 4 | * |
e7eb3a27 | 5 | * This program is free software: you can redistribute it and/or modify |
460b9539 | 6 | * it under the terms of the GNU General Public License as published by |
e7eb3a27 | 7 | * the Free Software Foundation, either version 3 of the License, or |
460b9539 | 8 | * (at your option) any later version. |
9 | * | |
e7eb3a27 RK |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
460b9539 | 15 | * You should have received a copy of the GNU General Public License |
e7eb3a27 | 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
460b9539 | 17 | */ |
219dc95c RK |
18 | /** @file disobedience/control.c |
19 | * @brief Volume control and buttons | |
20 | */ | |
460b9539 | 21 | |
22 | #include "disobedience.h" | |
23 | ||
e9b70a84 | 24 | /* Forward declarations ---------------------------------------------------- */ |
25 | ||
460b9539 | 26 | struct icon; |
27 | ||
c88d925d RK |
28 | static void clicked_icon(GtkToolButton *, gpointer); |
29 | static void toggled_icon(GtkToggleToolButton *button, | |
30 | gpointer user_data); | |
ac6bf2ba | 31 | static void clicked_menu(GtkMenuItem *, gpointer userdata); |
2d504956 | 32 | static void toggled_menu(GtkCheckMenuItem *, gpointer userdata); |
460b9539 | 33 | |
a99c4e9a RK |
34 | static int enable_rtp(disorder_eclient *c, |
35 | disorder_eclient_no_response *completed, | |
36 | void *v); | |
37 | static int disable_rtp(disorder_eclient *c, | |
38 | disorder_eclient_no_response *completed, | |
39 | void *v); | |
40 | ||
460b9539 | 41 | static double left(double v, double b); |
42 | static double right(double v, double b); | |
43 | static double volume(double l, double r); | |
44 | static double balance(double l, double r); | |
45 | ||
46 | static void volume_adjusted(GtkAdjustment *a, gpointer user_data); | |
47 | static gchar *format_volume(GtkScale *scale, gdouble value); | |
48 | static gchar *format_balance(GtkScale *scale, gdouble value); | |
49 | ||
6856f665 RK |
50 | static void icon_changed(const char *event, |
51 | void *evendata, | |
52 | void *callbackdata); | |
1f868ca3 RK |
53 | static void volume_changed(const char *event, |
54 | void *eventdata, | |
55 | void *callbackdata); | |
96295b25 RK |
56 | static void control_minimode(const char *event, |
57 | void *eventdata, | |
58 | void *callbackdata); | |
1f868ca3 | 59 | |
460b9539 | 60 | /* Control bar ------------------------------------------------------------- */ |
61 | ||
fb44b59e RK |
62 | /** @brief Guard against feedback */ |
63 | int suppress_actions = 1; | |
460b9539 | 64 | |
c88d925d RK |
65 | /** @brief Toolbar widget */ |
66 | static GtkWidget *toolbar; | |
67 | ||
219dc95c RK |
68 | /** @brief Definition of an icon |
69 | * | |
3849817f RK |
70 | * We have two kinds of icon: |
71 | * - action icons, which just do something but don't have a state as such | |
72 | * - toggle icons, which toggle between two states ("on" and "off"). | |
73 | * | |
74 | * The scratch button is an action icon; currently all the others are toggle | |
75 | * icons. | |
76 | * | |
77 | * (All icons can be sensitive or insensitive, separately to the above.) | |
219dc95c RK |
78 | */ |
79 | struct icon { | |
c88d925d | 80 | /** @brief TRUE to use GTK+ stock icons instead of filenames */ |
851bbc58 RK |
81 | gboolean stock; |
82 | ||
c88d925d RK |
83 | /** @brief TRUE for toggle buttons, FALSE for action buttons */ |
84 | gboolean toggle; | |
85 | ||
86 | /** @brief Filename for image or stock string */ | |
87 | const char *icon; | |
3849817f RK |
88 | |
89 | /** @brief Text for 'on' tooltip */ | |
90 | const char *tip_on; | |
219dc95c | 91 | |
851bbc58 | 92 | /** @brief Text for 'off' tooltip */ |
3849817f | 93 | const char *tip_off; |
219dc95c | 94 | |
ac6bf2ba RK |
95 | /** @brief Associated menu item or NULL */ |
96 | const char *menuitem; | |
219dc95c | 97 | |
c88d925d RK |
98 | /** @brief Label text */ |
99 | const char *label; | |
100 | ||
6856f665 RK |
101 | /** @brief Events that change this icon, separated by spaces */ |
102 | const char *events; | |
103 | ||
3849817f RK |
104 | /** @brief @ref eclient.h function to call to go from off to on |
105 | * | |
106 | * For action buttons, this should be NULL. | |
107 | */ | |
108 | int (*action_go_on)(disorder_eclient *c, | |
109 | disorder_eclient_no_response *completed, | |
110 | void *v); | |
219dc95c | 111 | |
3849817f RK |
112 | /** @brief @ref eclient.h function to call to go from on to off |
113 | * | |
114 | * For action buttons, this action is used. | |
115 | */ | |
116 | int (*action_go_off)(disorder_eclient *c, | |
117 | disorder_eclient_no_response *completed, | |
118 | void *v); | |
219dc95c | 119 | |
3849817f RK |
120 | /** @brief Get button state |
121 | * @return 1 for on, 0 for off | |
122 | */ | |
123 | int (*on)(void); | |
124 | ||
125 | /** @brief Get button sensitivity | |
126 | * @return 1 for sensitive, 0 for insensitive | |
127 | * | |
128 | * Can be NULL for always sensitive. | |
129 | */ | |
130 | int (*sensitive)(void); | |
df4ec2e9 RK |
131 | |
132 | /** @brief True if the menu item has inverse sense to the button */ | |
133 | gboolean menu_invert; | |
2d504956 | 134 | |
219dc95c | 135 | /** @brief Pointer to button */ |
460b9539 | 136 | GtkWidget *button; |
ac6bf2ba RK |
137 | |
138 | /** @brief Pointer to menu item */ | |
139 | GtkWidget *item; | |
3849817f | 140 | |
c88d925d | 141 | GtkWidget *image; |
219dc95c RK |
142 | }; |
143 | ||
3849817f | 144 | static int pause_resume_on(void) { |
c88d925d | 145 | return !!(last_state & DISORDER_TRACK_PAUSED); |
3849817f RK |
146 | } |
147 | ||
148 | static int pause_resume_sensitive(void) { | |
851bbc58 RK |
149 | return playing_track |
150 | && !!(last_state & DISORDER_PLAYING) | |
6f09d54d | 151 | && (last_rights & RIGHT_PAUSE); |
3849817f RK |
152 | } |
153 | ||
154 | static int scratch_sensitive(void) { | |
6f09d54d | 155 | return !!(last_state & DISORDER_PLAYING) |
afe9f743 | 156 | && right_scratchable(last_rights, config->username, playing_track); |
6f09d54d RK |
157 | } |
158 | ||
159 | static int random_sensitive(void) { | |
160 | return !!(last_rights & RIGHT_GLOBAL_PREFS); | |
3849817f RK |
161 | } |
162 | ||
163 | static int random_enabled(void) { | |
164 | return !!(last_state & DISORDER_RANDOM_ENABLED); | |
165 | } | |
166 | ||
6f09d54d RK |
167 | static int playing_sensitive(void) { |
168 | return !!(last_rights & RIGHT_GLOBAL_PREFS); | |
169 | } | |
170 | ||
3849817f RK |
171 | static int playing_enabled(void) { |
172 | return !!(last_state & DISORDER_PLAYING_ENABLED); | |
173 | } | |
2d504956 | 174 | |
3849817f RK |
175 | static int rtp_enabled(void) { |
176 | return rtp_is_running; | |
177 | } | |
178 | ||
179 | static int rtp_sensitive(void) { | |
180 | return rtp_supported; | |
181 | } | |
2d504956 | 182 | |
219dc95c RK |
183 | /** @brief Table of all icons */ |
184 | static struct icon icons[] = { | |
2d504956 | 185 | { |
3bd1c92f RK |
186 | .toggle = TRUE, |
187 | .stock = TRUE, | |
188 | .icon = GTK_STOCK_MEDIA_PAUSE, | |
189 | .label = "Pause", | |
190 | .tip_on = "Resume playing track", | |
191 | .tip_off = "Pause playing track", | |
192 | .menuitem = "<GdisorderMain>/Control/Playing", | |
193 | .on = pause_resume_on, | |
194 | .sensitive = pause_resume_sensitive, | |
195 | .action_go_on = disorder_eclient_pause, | |
196 | .action_go_off = disorder_eclient_resume, | |
197 | .events = "pause-changed playing-changed rights-changed playing-track-changed", | |
198 | .menu_invert = TRUE, | |
2d504956 RK |
199 | }, |
200 | { | |
3bd1c92f RK |
201 | .stock = TRUE, |
202 | .icon = GTK_STOCK_STOP, | |
203 | .label = "Scratch", | |
204 | .tip_on = "Cancel playing track", | |
205 | .menuitem = "<GdisorderMain>/Control/Scratch", | |
206 | .sensitive = scratch_sensitive, | |
207 | .action_go_off = disorder_eclient_scratch_playing, | |
208 | .events = "playing-track-changed rights-changed", | |
2d504956 RK |
209 | }, |
210 | { | |
3bd1c92f RK |
211 | .toggle = TRUE, |
212 | .stock = FALSE, | |
213 | .icon = "cards24.png", | |
214 | .label = "Random", | |
215 | .tip_on = "Disable random play", | |
216 | .tip_off = "Enable random play", | |
217 | .menuitem = "<GdisorderMain>/Control/Random play", | |
218 | .on = random_enabled, | |
219 | .sensitive = random_sensitive, | |
220 | .action_go_on = disorder_eclient_random_enable, | |
221 | .action_go_off = disorder_eclient_random_disable, | |
222 | .events = "random-changed rights-changed", | |
2d504956 RK |
223 | }, |
224 | { | |
3bd1c92f RK |
225 | .toggle = TRUE, |
226 | .stock = TRUE, | |
227 | .icon = GTK_STOCK_MEDIA_PLAY, | |
228 | .label = "Play", | |
229 | .tip_on = "Disable play", | |
230 | .tip_off = "Enable play", | |
231 | .on = playing_enabled, | |
232 | .sensitive = playing_sensitive, | |
233 | .action_go_on = disorder_eclient_enable, | |
234 | .action_go_off = disorder_eclient_disable, | |
235 | .events = "enabled-changed rights-changed", | |
2d504956 RK |
236 | }, |
237 | { | |
3bd1c92f RK |
238 | .toggle = TRUE, |
239 | .stock = TRUE, | |
240 | .icon = GTK_STOCK_CONNECT, | |
241 | .label = "RTP", | |
242 | .tip_on = "Stop playing network stream", | |
243 | .tip_off = "Play network stream", | |
244 | .menuitem = "<GdisorderMain>/Control/Network player", | |
245 | .on = rtp_enabled, | |
246 | .sensitive = rtp_sensitive, | |
247 | .action_go_on = enable_rtp, | |
248 | .action_go_off = disable_rtp, | |
249 | .events = "rtp-changed", | |
2d504956 | 250 | }, |
460b9539 | 251 | }; |
219dc95c RK |
252 | |
253 | /** @brief Count of icons */ | |
460b9539 | 254 | #define NICONS (int)(sizeof icons / sizeof *icons) |
255 | ||
219dc95c RK |
256 | static GtkAdjustment *volume_adj; |
257 | static GtkAdjustment *balance_adj; | |
3c499fe7 RK |
258 | static GtkWidget *volume_widget; |
259 | static GtkWidget *balance_widget; | |
460b9539 | 260 | |
219dc95c | 261 | /** @brief Create the control bar */ |
e9b70a84 | 262 | GtkWidget *control_widget(void) { |
c88d925d | 263 | GtkWidget *hbox = gtk_hbox_new(FALSE, 1); |
460b9539 | 264 | int n; |
265 | ||
266 | D(("control_widget")); | |
ac6bf2ba | 267 | assert(mainmenufactory); /* ordering must be right */ |
c88d925d RK |
268 | toolbar = gtk_toolbar_new(); |
269 | /* Don't permit overflow arrow as otherwise the toolbar isn't greedy enough | |
270 | * in asking for space. The ideal is probably to make the volume and balance | |
271 | * sliders hang down from the toolbar so it unavoidably gets the whole width | |
272 | * of the window to play with. */ | |
273 | gtk_toolbar_set_show_arrow(GTK_TOOLBAR(toolbar), FALSE); | |
96e33120 MW |
274 | if(full_mode) gtk_toolbar_unset_style(GTK_TOOLBAR(toolbar)); |
275 | else gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS); | |
460b9539 | 276 | for(n = 0; n < NICONS; ++n) { |
c88d925d RK |
277 | struct icon *const icon = &icons[n]; |
278 | icon->button = (icon->toggle | |
279 | ? GTK_WIDGET(gtk_toggle_tool_button_new()) | |
280 | : GTK_WIDGET(gtk_tool_button_new(NULL, NULL))); | |
3849817f | 281 | gtk_widget_set_style(icons[n].button, tool_style); |
851bbc58 RK |
282 | if(icons[n].stock) { |
283 | /* We'll use the stock icons for this one */ | |
c88d925d RK |
284 | icon->image = gtk_image_new_from_stock(icons[n].icon, |
285 | GTK_ICON_SIZE_LARGE_TOOLBAR); | |
851bbc58 RK |
286 | } else { |
287 | /* Create the 'on' image */ | |
c88d925d | 288 | icon->image = gtk_image_new_from_pixbuf(find_image(icons[n].icon)); |
851bbc58 | 289 | } |
c88d925d RK |
290 | assert(icon->image); |
291 | gtk_tool_button_set_icon_widget(GTK_TOOL_BUTTON(icon->button), | |
292 | icon->image); | |
293 | gtk_tool_button_set_label(GTK_TOOL_BUTTON(icon->button), | |
294 | icon->label); | |
295 | if(icon->toggle) | |
296 | g_signal_connect(G_OBJECT(icon->button), "toggled", | |
297 | G_CALLBACK(toggled_icon), icon); | |
298 | else | |
299 | g_signal_connect(G_OBJECT(icon->button), "clicked", | |
300 | G_CALLBACK(clicked_icon), icon); | |
301 | gtk_toolbar_insert(GTK_TOOLBAR(toolbar), | |
302 | GTK_TOOL_ITEM(icon->button), | |
303 | -1); | |
ac6bf2ba | 304 | if(icons[n].menuitem) { |
3849817f | 305 | /* Find the menu item */ |
ac6bf2ba RK |
306 | icons[n].item = gtk_item_factory_get_widget(mainmenufactory, |
307 | icons[n].menuitem); | |
c88d925d | 308 | if(icon->toggle) |
2d504956 RK |
309 | g_signal_connect(G_OBJECT(icons[n].item), "toggled", |
310 | G_CALLBACK(toggled_menu), &icons[n]); | |
3849817f | 311 | else |
2d504956 RK |
312 | g_signal_connect(G_OBJECT(icons[n].item), "activate", |
313 | G_CALLBACK(clicked_menu), &icons[n]); | |
ac6bf2ba | 314 | } |
6856f665 RK |
315 | /* Make sure the icon is updated when relevant things changed */ |
316 | char **events = split(icons[n].events, 0, 0, 0, 0); | |
317 | while(*events) | |
318 | event_register(*events++, icon_changed, &icons[n]); | |
f513e538 | 319 | event_register("connected-changed", icon_changed, &icons[n]); |
460b9539 | 320 | } |
321 | /* create the adjustments for the volume control */ | |
322 | volume_adj = GTK_ADJUSTMENT(gtk_adjustment_new(0, 0, goesupto, | |
323 | goesupto / 20, goesupto / 20, | |
324 | 0)); | |
325 | balance_adj = GTK_ADJUSTMENT(gtk_adjustment_new(0, -1, 1, | |
326 | 0.2, 0.2, 0)); | |
327 | /* the volume control */ | |
3c499fe7 | 328 | volume_widget = gtk_hscale_new(volume_adj); |
3c499fe7 RK |
329 | balance_widget = gtk_hscale_new(balance_adj); |
330 | gtk_widget_set_style(volume_widget, tool_style); | |
331 | gtk_widget_set_style(balance_widget, tool_style); | |
332 | gtk_scale_set_digits(GTK_SCALE(volume_widget), 10); | |
333 | gtk_scale_set_digits(GTK_SCALE(balance_widget), 10); | |
360af322 RK |
334 | gtk_widget_set_size_request(volume_widget, 128, -1); |
335 | gtk_widget_set_size_request(balance_widget, 128, -1); | |
a31f7a72 RK |
336 | gtk_widget_set_tooltip_text(volume_widget, "Volume"); |
337 | gtk_widget_set_tooltip_text(balance_widget, "Balance"); | |
c88d925d RK |
338 | gtk_box_pack_start(GTK_BOX(hbox), toolbar, |
339 | FALSE/*expand*/, TRUE/*fill*/, 0); | |
340 | gtk_box_pack_start(GTK_BOX(hbox), volume_widget, | |
341 | FALSE/*expand*/, TRUE/*fill*/, 0); | |
342 | gtk_box_pack_start(GTK_BOX(hbox), balance_widget, | |
343 | FALSE/*expand*/, TRUE/*fill*/, 0); | |
460b9539 | 344 | /* space updates rather than hammering the server */ |
3c499fe7 RK |
345 | gtk_range_set_update_policy(GTK_RANGE(volume_widget), GTK_UPDATE_DELAYED); |
346 | gtk_range_set_update_policy(GTK_RANGE(balance_widget), GTK_UPDATE_DELAYED); | |
460b9539 | 347 | /* notice when the adjustments are changed */ |
348 | g_signal_connect(G_OBJECT(volume_adj), "value-changed", | |
349 | G_CALLBACK(volume_adjusted), 0); | |
350 | g_signal_connect(G_OBJECT(balance_adj), "value-changed", | |
351 | G_CALLBACK(volume_adjusted), 0); | |
352 | /* format the volume/balance values ourselves */ | |
3c499fe7 | 353 | g_signal_connect(G_OBJECT(volume_widget), "format-value", |
460b9539 | 354 | G_CALLBACK(format_volume), 0); |
3c499fe7 | 355 | g_signal_connect(G_OBJECT(balance_widget), "format-value", |
460b9539 | 356 | G_CALLBACK(format_balance), 0); |
1f868ca3 | 357 | event_register("volume-changed", volume_changed, 0); |
6856f665 | 358 | event_register("rtp-changed", volume_changed, 0); |
96295b25 | 359 | event_register("mini-mode-changed", control_minimode, 0); |
460b9539 | 360 | return hbox; |
361 | } | |
362 | ||
96295b25 RK |
363 | /** @brief Return TRUE if volume setting is supported */ |
364 | static int volume_supported(void) { | |
365 | /* TODO: if the server doesn't know how to set the volume [but isn't using | |
366 | * network play] then we should have volume_supported = FALSE */ | |
af21fb6b | 367 | return 1; |
96295b25 RK |
368 | } |
369 | ||
6d1302f0 | 370 | /** @brief Update the volume control when it changes */ |
1f868ca3 RK |
371 | static void volume_changed(const char attribute((unused)) *event, |
372 | void attribute((unused)) *eventdata, | |
373 | void attribute((unused)) *callbackdata) { | |
460b9539 | 374 | double l, r; |
375 | ||
1f868ca3 | 376 | D(("volume_changed")); |
fb44b59e | 377 | ++suppress_actions; |
6856f665 | 378 | /* Only display volume/balance controls if they will work */ |
96295b25 | 379 | if(volume_supported()) { |
6856f665 | 380 | gtk_widget_show(volume_widget); |
1b0a811c RK |
381 | if(full_mode) |
382 | gtk_widget_show(balance_widget); | |
6856f665 RK |
383 | l = volume_l / 100.0; |
384 | r = volume_r / 100.0; | |
385 | gtk_adjustment_set_value(volume_adj, volume(l, r) * goesupto); | |
386 | gtk_adjustment_set_value(balance_adj, balance(l, r)); | |
387 | } else { | |
388 | gtk_widget_hide(volume_widget); | |
389 | gtk_widget_hide(balance_widget); | |
390 | } | |
fb44b59e | 391 | --suppress_actions; |
460b9539 | 392 | } |
393 | ||
ad58ebcc | 394 | /** @brief Update the state of one of the control icons |
ad58ebcc | 395 | */ |
6856f665 RK |
396 | static void icon_changed(const char attribute((unused)) *event, |
397 | void attribute((unused)) *evendata, | |
398 | void *callbackdata) { | |
00e0c652 | 399 | //fprintf(stderr, "icon_changed (%s)\n", event); |
6856f665 | 400 | const struct icon *const icon = callbackdata; |
3849817f RK |
401 | int on = icon->on ? icon->on() : 1; |
402 | int sensitive = icon->sensitive ? icon->sensitive() : 1; | |
00e0c652 | 403 | //fprintf(stderr, "sensitive->%d\n", sensitive); |
3849817f RK |
404 | |
405 | ++suppress_actions; | |
ad58ebcc | 406 | /* If the connection is down nothing is ever usable */ |
00959300 | 407 | if(!(last_state & DISORDER_CONNECTED)) |
3849817f | 408 | sensitive = 0; |
c88d925d RK |
409 | if(icon->toggle) |
410 | gtk_toggle_tool_button_set_active(GTK_TOGGLE_TOOL_BUTTON(icon->button), | |
411 | on); | |
7392b131 RK |
412 | /* If you disable play or random play NOT via the icon (for instance, via the |
413 | * edit menu or via a completely separate command line invocation) then the | |
00e0c652 | 414 | * icon shows up as insensitive. Hover the mouse over it and the correct |
7392b131 RK |
415 | * state is immediately displayed. sensitive and GTK_WIDGET_SENSITIVE show |
416 | * it to be in the correct state, so I think this is may be a GTK+ bug. */ | |
3849817f | 417 | if(icon->tip_on) |
a31f7a72 RK |
418 | gtk_widget_set_tooltip_text(icon->button, |
419 | on ? icon->tip_on : icon->tip_off); | |
3849817f RK |
420 | gtk_widget_set_sensitive(icon->button, sensitive); |
421 | /* Icons with an associated menu item */ | |
ac6bf2ba | 422 | if(icon->item) { |
c88d925d | 423 | if(icon->toggle) |
df4ec2e9 RK |
424 | gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(icon->item), |
425 | !!icon->menu_invert ^ !!on); | |
3849817f | 426 | gtk_widget_set_sensitive(icon->item, sensitive); |
ac6bf2ba | 427 | } |
3849817f | 428 | --suppress_actions; |
a99c4e9a RK |
429 | } |
430 | ||
53fa91bb | 431 | static void icon_action_completed(void attribute((unused)) *v, |
abf99697 RK |
432 | const char *err) { |
433 | if(err) | |
434 | popup_protocol_error(0, err); | |
53fa91bb RK |
435 | } |
436 | ||
c88d925d | 437 | static void clicked_icon(GtkToolButton attribute((unused)) *button, |
460b9539 | 438 | gpointer userdata) { |
439 | const struct icon *icon = userdata; | |
440 | ||
3849817f RK |
441 | if(suppress_actions) |
442 | return; | |
c88d925d RK |
443 | icon->action_go_off(client, icon_action_completed, 0); |
444 | } | |
445 | ||
446 | static void toggled_icon(GtkToggleToolButton attribute((unused)) *button, | |
447 | gpointer user_data) { | |
448 | const struct icon *icon = user_data; | |
449 | ||
450 | if(suppress_actions) | |
451 | return; | |
452 | if(icon->on()) | |
3849817f RK |
453 | icon->action_go_off(client, icon_action_completed, 0); |
454 | else | |
455 | icon->action_go_on(client, icon_action_completed, 0); | |
460b9539 | 456 | } |
457 | ||
ac6bf2ba RK |
458 | static void clicked_menu(GtkMenuItem attribute((unused)) *menuitem, |
459 | gpointer userdata) { | |
3849817f | 460 | clicked_icon(NULL, userdata); |
ac6bf2ba RK |
461 | } |
462 | ||
3849817f | 463 | static void toggled_menu(GtkCheckMenuItem attribute((unused)) *menuitem, |
2d504956 | 464 | gpointer userdata) { |
23087773 | 465 | toggled_icon(NULL, userdata); |
2d504956 RK |
466 | } |
467 | ||
699517af RK |
468 | /** @brief Called when a volume command completes */ |
469 | static void volume_completed(void attribute((unused)) *v, | |
ad131c25 | 470 | const char *err) { |
abf99697 RK |
471 | if(err) |
472 | popup_protocol_error(0, err); | |
699517af RK |
473 | /* We don't set the UI's notion of the volume here, it is set from the log |
474 | * regardless of the reason it changed */ | |
475 | } | |
476 | ||
219dc95c | 477 | /** @brief Called when the volume has been adjusted */ |
460b9539 | 478 | static void volume_adjusted(GtkAdjustment attribute((unused)) *a, |
479 | gpointer attribute((unused)) user_data) { | |
480 | double v = gtk_adjustment_get_value(volume_adj) / goesupto; | |
481 | double b = gtk_adjustment_get_value(balance_adj); | |
482 | ||
fb44b59e | 483 | if(suppress_actions) |
460b9539 | 484 | /* This is the result of an update from the server, not a change from the |
485 | * user. Don't feedback! */ | |
486 | return; | |
487 | D(("volume_adjusted")); | |
488 | /* force to 'stereotypical' values */ | |
489 | v = nearbyint(100 * v) / 100; | |
490 | b = nearbyint(5 * b) / 5; | |
491 | /* Set the volume. We don't want a reply, we'll get the actual new volume | |
492 | * from the log. */ | |
321f7536 RK |
493 | if(rtp_supported) { |
494 | int l = nearbyint(left(v, b) * 100), r = nearbyint(right(v, b) * 100); | |
af21fb6b | 495 | rtp_setvol(&l, &r); |
321f7536 | 496 | } else |
ad131c25 RK |
497 | disorder_eclient_set_volume(client, volume_completed, |
498 | nearbyint(left(v, b) * 100), | |
499 | nearbyint(right(v, b) * 100), | |
500 | 0); | |
460b9539 | 501 | } |
502 | ||
219dc95c | 503 | /** @brief Formats the volume value */ |
460b9539 | 504 | static gchar *format_volume(GtkScale attribute((unused)) *scale, |
505 | gdouble value) { | |
506 | char s[32]; | |
507 | ||
508 | snprintf(s, sizeof s, "%.1f", (double)value); | |
2fc4475d | 509 | return g_strdup(s); |
460b9539 | 510 | } |
511 | ||
219dc95c | 512 | /** @brief Formats the balance value */ |
460b9539 | 513 | static gchar *format_balance(GtkScale attribute((unused)) *scale, |
514 | gdouble value) { | |
515 | char s[32]; | |
516 | ||
517 | if(fabs(value) < 0.1) | |
2fc4475d | 518 | return g_strdup("0"); |
460b9539 | 519 | snprintf(s, sizeof s, "%+.1f", (double)value); |
2fc4475d | 520 | return g_strdup(s); |
460b9539 | 521 | } |
522 | ||
523 | /* Volume mapping. We consider left, right, volume to be in [0,1] | |
524 | * and balance to be in [-1,1]. | |
525 | * | |
526 | * First, we just have volume = max(left, right). | |
527 | * | |
528 | * Balance we consider to linearly represent the amount by which the quieter | |
529 | * channel differs from the louder. In detail: | |
530 | * | |
531 | * if right > left then balance > 0: | |
532 | * balance = 0 => left = right (as an endpoint, not an instance) | |
533 | * balance = 1 => left = 0 | |
534 | * fitting to linear, left = right * (1 - balance) | |
535 | * so balance = 1 - left / right | |
536 | * (right > left => right > 0 so no division by 0.) | |
537 | * | |
538 | * if left > right then balance < 0: | |
539 | * balance = 0 => right = left (same caveat as above) | |
540 | * balance = -1 => right = 0 | |
541 | * again fitting to linear, right = left * (1 + balance) | |
542 | * so balance = right / left - 1 | |
543 | * (left > right => left > 0 so no division by 0.) | |
544 | * | |
545 | * if left = right then we just have balance = 0. | |
546 | * | |
547 | * Thanks to Clive and Andrew. | |
548 | */ | |
549 | ||
219dc95c | 550 | /** @brief Return the greater of @p x and @p y */ |
460b9539 | 551 | static double max(double x, double y) { |
552 | return x > y ? x : y; | |
553 | } | |
554 | ||
219dc95c | 555 | /** @brief Compute the left channel volume */ |
460b9539 | 556 | static double left(double v, double b) { |
557 | if(b > 0) /* volume = right */ | |
558 | return v * (1 - b); | |
559 | else /* volume = left */ | |
560 | return v; | |
561 | } | |
562 | ||
219dc95c | 563 | /** @brief Compute the right channel volume */ |
460b9539 | 564 | static double right(double v, double b) { |
565 | if(b > 0) /* volume = right */ | |
566 | return v; | |
567 | else /* volume = left */ | |
568 | return v * (1 + b); | |
569 | } | |
570 | ||
219dc95c | 571 | /** @brief Compute the overall volume */ |
460b9539 | 572 | static double volume(double l, double r) { |
573 | return max(l, r); | |
574 | } | |
575 | ||
219dc95c | 576 | /** @brief Compute the balance */ |
460b9539 | 577 | static double balance(double l, double r) { |
578 | if(l > r) | |
579 | return r / l - 1; | |
580 | else if(r > l) | |
581 | return 1 - l / r; | |
582 | else /* left = right */ | |
583 | return 0; | |
584 | } | |
585 | ||
a99c4e9a RK |
586 | /** @brief Called to enable RTP play |
587 | * | |
588 | * Rather odd signature is to fit in with the other icons which all call @ref | |
589 | * lib/eclient.h functions. | |
590 | */ | |
591 | static int enable_rtp(disorder_eclient attribute((unused)) *c, | |
592 | disorder_eclient_no_response attribute((unused)) *completed, | |
593 | void attribute((unused)) *v) { | |
594 | start_rtp(); | |
595 | return 0; | |
596 | } | |
597 | ||
598 | /** @brief Called to disable RTP play | |
599 | * | |
600 | * Rather odd signature is to fit in with the other icons which all call @ref | |
601 | * lib/eclient.h functions. | |
602 | */ | |
603 | static int disable_rtp(disorder_eclient attribute((unused)) *c, | |
604 | disorder_eclient_no_response attribute((unused)) *completed, | |
605 | void attribute((unused)) *v) { | |
606 | stop_rtp(); | |
607 | return 0; | |
608 | } | |
609 | ||
96295b25 RK |
610 | static void control_minimode(const char attribute((unused)) *event, |
611 | void attribute((unused)) *evendata, | |
612 | void attribute((unused)) *callbackdata) { | |
faa19503 | 613 | if(full_mode && volume_supported()) { |
96295b25 | 614 | gtk_widget_show(balance_widget); |
faa19503 RK |
615 | gtk_scale_set_value_pos(GTK_SCALE(volume_widget), GTK_POS_TOP); |
616 | } else { | |
96295b25 | 617 | gtk_widget_hide(balance_widget); |
faa19503 RK |
618 | gtk_scale_set_value_pos(GTK_SCALE(volume_widget), GTK_POS_RIGHT); |
619 | } | |
96e33120 MW |
620 | if(full_mode) gtk_toolbar_unset_style(GTK_TOOLBAR(toolbar)); |
621 | else gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS); | |
96295b25 RK |
622 | } |
623 | ||
460b9539 | 624 | /* |
625 | Local Variables: | |
626 | c-basic-offset:2 | |
627 | comment-column:40 | |
628 | fill-column:79 | |
629 | indent-tabs-mode:nil | |
630 | End: | |
631 | */ |