chiark / gitweb /
examples/disorder.init.in: Read settings from `/etc/default/disorder'.
[disorder] / disobedience / choose.c
... / ...
CommitLineData
1/*
2 * This file is part of DisOrder
3 * Copyright (C) 2008 Richard Kettlewell
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
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 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18/** @file disobedience/choose.c
19 * @brief Hierarchical track selection and search
20 *
21 * We now use an ordinary GtkTreeStore/GtkTreeView.
22 *
23 * We don't want to pull the entire tree in memory, but we want directories to
24 * show up as having children. Therefore we give directories a placeholder
25 * child and replace their children when they are opened. Placeholders have
26 * TRACK_COLUMN="" and ISFILE_COLUMN=FALSE (so that they don't get check boxes,
27 * lengths, etc).
28 *
29 * TODO:
30 * - sweep up contracted nodes, replacing their content with a placeholder
31 */
32
33#include "disobedience.h"
34#include "choose.h"
35#include "multidrag.h"
36#include "queue-generic.h"
37#include <gdk/gdkkeysyms.h>
38
39/** @brief Drag types */
40const GtkTargetEntry choose_targets[] = {
41 {
42 PLAYABLE_TRACKS, /* drag type */
43 GTK_TARGET_SAME_APP|GTK_TARGET_OTHER_WIDGET, /* copying between widgets */
44 PLAYABLE_TRACKS_ID /* ID value */
45 },
46 {
47 .target = NULL
48 }
49};
50
51/** @brief The current selection tree */
52GtkTreeStore *choose_store;
53
54/** @brief The view onto the selection tree */
55GtkWidget *choose_view;
56
57/** @brief The selection tree's selection */
58GtkTreeSelection *choose_selection;
59
60/** @brief Count of file listing operations in flight */
61static int choose_list_in_flight;
62
63/** @brief If nonzero autocollapse column won't be set */
64static int choose_suppress_set_autocollapse;
65
66static char *choose_get_string(GtkTreeIter *iter, int column) {
67 gchar *gs;
68 gtk_tree_model_get(GTK_TREE_MODEL(choose_store), iter,
69 column, &gs,
70 -1);
71 char *s = xstrdup(gs);
72 g_free(gs);
73 return s;
74}
75
76char *choose_get_track(GtkTreeIter *iter) {
77 char *s = choose_get_string(iter, TRACK_COLUMN);
78 return *s ? s : 0; /* Placeholder -> NULL */
79}
80
81char *choose_get_sort(GtkTreeIter *iter) {
82 return choose_get_string(iter, SORT_COLUMN);
83}
84
85char *choose_get_display(GtkTreeIter *iter) {
86 return choose_get_string(iter, NAME_COLUMN);
87}
88
89int choose_is_file(GtkTreeIter *iter) {
90 gboolean isfile;
91 gtk_tree_model_get(GTK_TREE_MODEL(choose_store), iter,
92 ISFILE_COLUMN, &isfile,
93 -1);
94 return isfile;
95}
96
97int choose_is_dir(GtkTreeIter *iter) {
98 gboolean isfile;
99 gtk_tree_model_get(GTK_TREE_MODEL(choose_store), iter,
100 ISFILE_COLUMN, &isfile,
101 -1);
102 if(isfile)
103 return FALSE;
104 return !choose_is_placeholder(iter);
105}
106
107int choose_is_placeholder(GtkTreeIter *iter) {
108 return choose_get_string(iter, TRACK_COLUMN)[0] == 0;
109}
110
111int choose_can_autocollapse(GtkTreeIter *iter) {
112 gboolean autocollapse;
113 gtk_tree_model_get(GTK_TREE_MODEL(choose_store), iter,
114 AUTOCOLLAPSE_COLUMN, &autocollapse,
115 -1);
116 return autocollapse;
117}
118
119/** @brief Remove node @p it and all its children
120 * @param it Iterator, updated to point to next
121 * @return True if iterator remains valid
122 *
123 * TODO is this necessary? gtk_tree_store_remove() does not document what
124 * happens to children.
125 */
126static gboolean choose_remove_node(GtkTreeIter *it) {
127 GtkTreeIter child[1];
128 gboolean childv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store),
129 child,
130 it);
131 while(childv)
132 childv = choose_remove_node(child);
133 return gtk_tree_store_remove(choose_store, it);
134}
135
136/** @brief Update length and state fields */
137static gboolean choose_set_state_callback(GtkTreeModel attribute((unused)) *model,
138 GtkTreePath attribute((unused)) *path,
139 GtkTreeIter *it,
140 gpointer attribute((unused)) data) {
141 if(choose_is_file(it)) {
142 const char *track = choose_get_track(it);
143 const long l = namepart_length(track);
144 char length[64];
145 if(l > 0)
146 byte_snprintf(length, sizeof length, "%ld:%02ld", l / 60, l % 60);
147 else
148 length[0] = 0;
149 gtk_tree_store_set(choose_store, it,
150 LENGTH_COLUMN, length,
151 STATE_COLUMN, queued(track),
152 -1);
153 if(choose_is_search_result(track))
154 gtk_tree_store_set(choose_store, it,
155 BG_COLUMN, SEARCH_RESULT_BG,
156 FG_COLUMN, SEARCH_RESULT_FG,
157 -1);
158 else
159 gtk_tree_store_set(choose_store, it,
160 BG_COLUMN, (char *)0,
161 FG_COLUMN, (char *)0,
162 -1);
163 }
164 return FALSE; /* continue walking */
165}
166
167/** @brief Called when the queue or playing track change */
168static void choose_set_state(const char attribute((unused)) *event,
169 void attribute((unused)) *eventdata,
170 void attribute((unused)) *callbackdata) {
171 gtk_tree_model_foreach(GTK_TREE_MODEL(choose_store),
172 choose_set_state_callback,
173 NULL);
174}
175
176/** @brief (Re-)populate a node
177 * @param parent_ref Node to populate or NULL to fill root
178 * @param nvec Number of children to add
179 * @param vec Children
180 * @param isfile 1 if children are files, 0 if directories
181 *
182 * Adjusts the set of files (or directories) below @p parent_ref to match those
183 * listed in @p nvec and @p vec.
184 *
185 * @p parent_ref will be destroyed.
186 */
187static void choose_populate(GtkTreeRowReference *parent_ref,
188 int nvec, char **vec,
189 int isfile) {
190 const char *type = isfile ? "track" : "dir";
191 //fprintf(stderr, "%d new children of type %s\n", nvec, type);
192 if(!nvec)
193 goto skip;
194 /* Compute parent_* */
195 GtkTreeIter pit[1], *parent_it;
196 GtkTreePath *parent_path;
197 if(parent_ref) {
198 parent_path = gtk_tree_row_reference_get_path(parent_ref);
199 parent_it = pit;
200 gboolean pitv = gtk_tree_model_get_iter(GTK_TREE_MODEL(choose_store),
201 pit, parent_path);
202 assert(pitv);
203 /*fprintf(stderr, "choose_populate %s: parent path is [%s]\n",
204 type,
205 gtk_tree_path_to_string(parent_path));*/
206 } else {
207 parent_path = 0;
208 parent_it = 0;
209 /*fprintf(stderr, "choose_populate %s: populating the root\n",
210 type);*/
211 }
212 /* Both td[] and the current node set are sorted so we can do a single linear
213 * pass to insert new nodes and remove unwanted ones. The total performance
214 * may be worse than linear depending on the performance of GTK+'s insert and
215 * delete operations. */
216 //fprintf(stderr, "sorting tracks\n");
217 struct tracksort_data *td = tracksort_init(nvec, vec, type);
218 GtkTreeIter it[1];
219 gboolean itv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store),
220 it,
221 parent_it);
222 int inserted = 0, deleted_placeholder = 0;
223 //fprintf(stderr, "inserting tracks type=%s\n", type);
224 while(nvec > 0 || itv) {
225 /*fprintf(stderr, "td[] = %s, it=%s [%s]\n",
226 nvec > 0 ? td->track : "(none)",
227 itv ? choose_get_track(it) : "(!itv)",
228 itv ? (choose_is_file(it) ? "file" : "dir") : "");*/
229 enum { INSERT, DELETE, SKIP_TREE, SKIP_BOTH } action;
230 const char *track = itv ? choose_get_track(it) : 0;
231 if(itv && !track) {
232 //fprintf(stderr, " placeholder\n");
233 action = DELETE;
234 ++deleted_placeholder;
235 } else if(nvec > 0 && itv) {
236 /* There's both a tree row and a td[] entry */
237 const int cmp = compare_tracks(td->sort, choose_get_sort(it),
238 td->display, choose_get_display(it),
239 td->track, track);
240 //fprintf(stderr, " cmp=%d\n", cmp);
241 if(cmp < 0)
242 /* td < it, so we insert td before it */
243 action = INSERT;
244 else if(cmp > 0) {
245 /* td > it, so we must either delete it (if the same type) or skip it */
246 if(choose_is_file(it) == isfile)
247 action = DELETE;
248 else
249 action = SKIP_TREE;
250 } else
251 /* td = it, so we step past both */
252 action = SKIP_BOTH;
253 } else if(nvec > 0) {
254 /* We've reached the end of the tree rows, but new have tracks left in
255 * td[] */
256 //fprintf(stderr, " inserting\n");
257 action = INSERT;
258 } else {
259 /* We've reached the end of the new tracks from td[], but there are
260 * further tracks in the tree */
261 //fprintf(stderr, " deleting\n");
262 if(choose_is_file(it) == isfile)
263 action = DELETE;
264 else
265 action = SKIP_TREE;
266 }
267
268 switch(action) {
269 case INSERT: {
270 //fprintf(stderr, " INSERT %s\n", td->track);
271 /* Insert a new row from td[] before it, or at the end if it is no longer
272 * valid */
273 GtkTreeIter child[1];
274 gtk_tree_store_insert_before(choose_store,
275 child, /* new row */
276 parent_it, /* parent */
277 itv ? it : NULL); /* successor */
278 gtk_tree_store_set(choose_store, child,
279 NAME_COLUMN, td->display,
280 ISFILE_COLUMN, isfile,
281 TRACK_COLUMN, td->track,
282 SORT_COLUMN, td->sort,
283 AUTOCOLLAPSE_COLUMN, FALSE,
284 -1);
285 /* Update length and state; we expect this to kick off length lookups
286 * rather than necessarily get the right value the first time round. */
287 choose_set_state_callback(0, 0, child, 0);
288 /* If we inserted a directory, insert a placeholder too, so it appears to
289 * have children; it will be deleted when we expand the directory. */
290 if(!isfile) {
291 //fprintf(stderr, " inserting a placeholder\n");
292 GtkTreeIter placeholder[1];
293
294 gtk_tree_store_append(choose_store, placeholder, child);
295 gtk_tree_store_set(choose_store, placeholder,
296 NAME_COLUMN, "Waddling...",
297 TRACK_COLUMN, "",
298 ISFILE_COLUMN, FALSE,
299 -1);
300 }
301 ++inserted;
302 ++td;
303 --nvec;
304 break;
305 }
306 case SKIP_BOTH:
307 //fprintf(stderr, " SKIP_BOTH\n");
308 ++td;
309 --nvec;
310 /* fall thru */
311 case SKIP_TREE:
312 //fprintf(stderr, " SKIP_TREE\n");
313 itv = gtk_tree_model_iter_next(GTK_TREE_MODEL(choose_store), it);
314 break;
315 case DELETE:
316 //fprintf(stderr, " DELETE\n");
317 itv = choose_remove_node(it);
318 break;
319 }
320 }
321 /*fprintf(stderr, "inserted=%d deleted_placeholder=%d\n\n",
322 inserted, deleted_placeholder);*/
323 if(parent_ref) {
324 /* If we deleted a placeholder then we must re-expand the row */
325 if(deleted_placeholder) {
326 ++choose_suppress_set_autocollapse;
327 gtk_tree_view_expand_row(GTK_TREE_VIEW(choose_view), parent_path, FALSE);
328 --choose_suppress_set_autocollapse;
329 }
330 gtk_tree_row_reference_free(parent_ref);
331 gtk_tree_path_free(parent_path);
332 }
333skip:
334 /* We only notify others that we've inserted tracks when there are no more
335 * insertions pending, so that they don't have to keep track of how many
336 * requests they've made. */
337 if(--choose_list_in_flight == 0) {
338 /* Notify interested parties that we inserted some tracks, AFTER making
339 * sure that the row is properly expanded */
340 //fprintf(stderr, "raising choose-more-tracks\n");
341 event_raise("choose-more-tracks", 0);
342 }
343 //fprintf(stderr, "choose_list_in_flight -> %d-\n", choose_list_in_flight);
344}
345
346static void choose_dirs_completed(void *v,
347 const char *err,
348 int nvec, char **vec) {
349 if(err) {
350 popup_protocol_error(0, err);
351 return;
352 }
353 choose_populate(v, nvec, vec, 0/*!isfile*/);
354}
355
356static void choose_files_completed(void *v,
357 const char *err,
358 int nvec, char **vec) {
359 if(err) {
360 popup_protocol_error(0, err);
361 return;
362 }
363 choose_populate(v, nvec, vec, 1/*isfile*/);
364}
365
366void choose_play_completed(void attribute((unused)) *v,
367 const char *err,
368 const char attribute((unused)) *id) {
369 if(err)
370 popup_protocol_error(0, err);
371}
372
373static void choose_state_toggled
374 (GtkCellRendererToggle attribute((unused)) *cell_renderer,
375 gchar *path_str,
376 gpointer attribute((unused)) user_data) {
377 GtkTreeIter it[1];
378 /* Identify the track */
379 gboolean itv =
380 gtk_tree_model_get_iter_from_string(GTK_TREE_MODEL(choose_store),
381 it,
382 path_str);
383 if(!itv)
384 return;
385 if(!choose_is_file(it))
386 return;
387 const char *track = choose_get_track(it);
388 if(queued(track))
389 return;
390 disorder_eclient_play(client, choose_play_completed, track, 0);
391
392}
393
394/** @brief (Re-)get the children of @p path
395 * @param path Path to target row
396 * @param iter Iterator pointing at target row
397 *
398 * Called from choose_row_expanded() to make sure that the contents are present
399 * and from choose_refill_callback() to (re-)synchronize.
400 */
401static void choose_refill_row(GtkTreePath *path,
402 GtkTreeIter *iter) {
403 const char *track = choose_get_track(iter);
404 disorder_eclient_files(client, choose_files_completed,
405 track,
406 NULL,
407 gtk_tree_row_reference_new(GTK_TREE_MODEL(choose_store),
408 path));
409 disorder_eclient_dirs(client, choose_dirs_completed,
410 track,
411 NULL,
412 gtk_tree_row_reference_new(GTK_TREE_MODEL(choose_store),
413 path));
414 /* The row references are destroyed in the _completed handlers. */
415 choose_list_in_flight += 2;
416}
417
418static void choose_row_expanded(GtkTreeView attribute((unused)) *treeview,
419 GtkTreeIter *iter,
420 GtkTreePath *path,
421 gpointer attribute((unused)) user_data) {
422 /*fprintf(stderr, "row-expanded path=[%s]\n\n",
423 gtk_tree_path_to_string(path));*/
424 /* We update a node's contents whenever it is expanded, even if it was
425 * already populated; the effect is that contracting and expanding a node
426 * suffices to update it to the latest state on the server. */
427 choose_refill_row(path, iter);
428 if(!choose_suppress_set_autocollapse) {
429 if(choose_auto_expanding) {
430 /* This was an automatic expansion; mark it the row for auto-collapse. */
431 gtk_tree_store_set(choose_store, iter,
432 AUTOCOLLAPSE_COLUMN, TRUE,
433 -1);
434 /*fprintf(stderr, "enable auto-collapse for %s\n",
435 gtk_tree_path_to_string(path));*/
436 } else {
437 /* This was a manual expansion. Inhibit automatic collapse on this row
438 * and all its ancestors. */
439 gboolean itv;
440 do {
441 gtk_tree_store_set(choose_store, iter,
442 AUTOCOLLAPSE_COLUMN, FALSE,
443 -1);
444 /*fprintf(stderr, "suppress auto-collapse for %s\n",
445 gtk_tree_model_get_string_from_iter(GTK_TREE_MODEL(choose_store),
446 iter));*/
447 GtkTreeIter child = *iter;
448 itv = gtk_tree_model_iter_parent(GTK_TREE_MODEL(choose_store),
449 iter,
450 &child);
451 } while(itv);
452 /* The effect of this is that if you expand a row that's actually a
453 * sibling of the real target of the auto-expansion, it stays expanded
454 * when you clear a search. That's find and good, but it _still_ stays
455 * expanded if you expand it and then collapse it.
456 *
457 * An alternative policy would be to only auto-collapse rows that don't
458 * have any expanded children (apart from ones also subject to
459 * auto-collapse). I'm not sure what the most usable policy is.
460 */
461 }
462 }
463}
464
465static void choose_auto_collapse_callback(GtkTreeView *tree_view,
466 GtkTreePath *path,
467 gpointer attribute((unused)) user_data) {
468 GtkTreeIter it[1];
469
470 gtk_tree_model_get_iter(GTK_TREE_MODEL(choose_store), it, path);
471 if(choose_can_autocollapse(it)) {
472 /*fprintf(stderr, "collapse %s\n",
473 gtk_tree_path_to_string(path));*/
474 gtk_tree_store_set(choose_store, it,
475 AUTOCOLLAPSE_COLUMN, FALSE,
476 -1);
477 gtk_tree_view_collapse_row(tree_view, path);
478 }
479}
480
481/** @brief Perform automatic collapse after a search is cleared */
482void choose_auto_collapse(void) {
483 gtk_tree_view_map_expanded_rows(GTK_TREE_VIEW(choose_view),
484 choose_auto_collapse_callback,
485 0);
486}
487
488/** @brief Called from choose_refill() with each expanded row */
489static void choose_refill_callback(GtkTreeView attribute((unused)) *tree_view,
490 GtkTreePath *path,
491 gpointer attribute((unused)) user_data) {
492 GtkTreeIter it[1];
493
494 gtk_tree_model_get_iter(GTK_TREE_MODEL(choose_store), it, path);
495 choose_refill_row(path, it);
496}
497
498/** @brief Synchronize all visible data with the server
499 *
500 * Called at startup, when a rescan completes, and via periodic_slow().
501 */
502static void choose_refill(const char attribute((unused)) *event,
503 void attribute((unused)) *eventdata,
504 void attribute((unused)) *callbackdata) {
505 //fprintf(stderr, "choose_refill\n");
506 /* Update the root */
507 disorder_eclient_files(client, choose_files_completed, "", NULL, NULL);
508 disorder_eclient_dirs(client, choose_dirs_completed, "", NULL, NULL);
509 choose_list_in_flight += 2;
510 /* Update all expanded rows */
511 gtk_tree_view_map_expanded_rows(GTK_TREE_VIEW(choose_view),
512 choose_refill_callback,
513 0);
514 //fprintf(stderr, "choose_list_in_flight -> %d+\n", choose_list_in_flight);
515}
516
517/** @brief Called for key-*-event on the main view
518 */
519static gboolean choose_key_event(GtkWidget attribute((unused)) *widget,
520 GdkEventKey *event,
521 gpointer user_data) {
522 /*fprintf(stderr, "choose_key_event type=%d state=%#x keyval=%#x\n",
523 event->type, event->state, event->keyval);*/
524 switch(event->keyval) {
525 case GDK_Page_Up:
526 case GDK_Page_Down:
527 case GDK_Up:
528 case GDK_Down:
529 case GDK_Home:
530 case GDK_End:
531 return FALSE; /* We'll take these */
532 case 'f': case 'F':
533 /* ^F is expected to start a search. We implement this by focusing the
534 * search entry box. */
535 if((event->state & ~(GDK_LOCK_MASK|GDK_SHIFT_MASK)) == GDK_CONTROL_MASK
536 && event->type == GDK_KEY_PRESS) {
537 choose_search_new();
538 return TRUE; /* Handled it */
539 }
540 break;
541 case 'g': case 'G':
542 /* ^G is expected to go the next match. We simulate a click on the 'next'
543 * button. */
544 if((event->state & ~(GDK_LOCK_MASK|GDK_SHIFT_MASK)) == GDK_CONTROL_MASK
545 && event->type == GDK_KEY_PRESS) {
546 choose_next_clicked(0, 0);
547 return TRUE; /* Handled it */
548 }
549 break;
550 }
551 /* Anything not handled we redirected to the search entry field */
552 gtk_widget_event(user_data, (GdkEvent *)event);
553 return TRUE; /* Handled it */
554}
555
556static gboolean choose_multidrag_predicate(GtkTreePath attribute((unused)) *path,
557 GtkTreeIter *iter) {
558 return choose_is_file(iter);
559}
560
561
562/** @brief Callback to add selected tracks to the selection data
563 *
564 * Called from choose_drag_data_get().
565 */
566static void choose_drag_data_get_collect(GtkTreeModel attribute((unused)) *model,
567 GtkTreePath attribute((unused)) *path,
568 GtkTreeIter *iter,
569 gpointer data) {
570 struct dynstr *const result = data;
571
572 if(choose_is_file(iter)) { /* no diretories */
573 dynstr_append_string(result, ""); /* no ID */
574 dynstr_append(result, '\n');
575 dynstr_append_string(result, choose_get_track(iter));
576 dynstr_append(result, '\n');
577 }
578}
579
580/** @brief Called to extract the dragged data from the choose view
581 * @param w Source widget (the tree view)
582 * @param dc Drag context
583 * @param data Where to put the answer
584 * @param info_ Target @c info parameter
585 * @param time_ Time data requested (for some reason not a @c time_t)
586 * @param user_data The queuelike
587 *
588 * Closely analogous to ql_drag_data_get(), and uses the same data format.
589 * IDs are sent as empty strings.
590 */
591static void choose_drag_data_get(GtkWidget *w,
592 GdkDragContext attribute((unused)) *dc,
593 GtkSelectionData *data,
594 guint attribute((unused)) info_,
595 guint attribute((unused)) time_,
596 gpointer attribute((unused)) user_data) {
597 struct dynstr result[1];
598 GtkTreeSelection *sel;
599
600 sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(w));
601 dynstr_init(result);
602 gtk_tree_selection_selected_foreach(sel,
603 choose_drag_data_get_collect,
604 result);
605 gtk_selection_data_set(data,
606 GDK_TARGET_STRING,
607 8, (guchar *)result->vec, result->nvec);
608}
609
610/** @brief Create the choose tab */
611GtkWidget *choose_widget(void) {
612 /* Create the tree store. */
613 choose_store = gtk_tree_store_new(CHOOSE_COLUMNS,
614 G_TYPE_BOOLEAN,
615 G_TYPE_STRING,
616 G_TYPE_STRING,
617 G_TYPE_BOOLEAN,
618 G_TYPE_STRING,
619 G_TYPE_STRING,
620 G_TYPE_STRING,
621 G_TYPE_STRING,
622 G_TYPE_BOOLEAN);
623
624 /* Create the view */
625 choose_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(choose_store));
626 gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(choose_view), TRUE);
627 /* Suppress built-in typeahead find, we do our own search support. */
628 gtk_tree_view_set_enable_search(GTK_TREE_VIEW(choose_view), FALSE);
629
630 /* Create cell renderers and columns */
631 /* TODO use a table */
632 {
633 GtkCellRenderer *r = gtk_cell_renderer_toggle_new();
634 GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes
635 ("Queued",
636 r,
637 "active", STATE_COLUMN,
638 "visible", ISFILE_COLUMN,
639 (char *)0);
640 gtk_tree_view_column_set_resizable(c, TRUE);
641 gtk_tree_view_column_set_reorderable(c, TRUE);
642 gtk_tree_view_append_column(GTK_TREE_VIEW(choose_view), c);
643 g_signal_connect(r, "toggled",
644 G_CALLBACK(choose_state_toggled), 0);
645 }
646 {
647 GtkCellRenderer *r = gtk_cell_renderer_text_new();
648 GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes
649 ("Length",
650 r,
651 "text", LENGTH_COLUMN,
652 (char *)0);
653 gtk_tree_view_column_set_resizable(c, TRUE);
654 gtk_tree_view_column_set_reorderable(c, TRUE);
655 g_object_set(r, "xalign", (gfloat)1.0, (char *)0);
656 gtk_tree_view_append_column(GTK_TREE_VIEW(choose_view), c);
657 }
658 {
659 GtkCellRenderer *r = gtk_cell_renderer_text_new();
660 GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes
661 ("Track",
662 r,
663 "text", NAME_COLUMN,
664 "background", BG_COLUMN,
665 "foreground", FG_COLUMN,
666 (char *)0);
667 gtk_tree_view_column_set_resizable(c, TRUE);
668 gtk_tree_view_column_set_reorderable(c, TRUE);
669 g_object_set(c, "expand", TRUE, (char *)0);
670 gtk_tree_view_append_column(GTK_TREE_VIEW(choose_view), c);
671 gtk_tree_view_set_expander_column(GTK_TREE_VIEW(choose_view), c);
672 }
673
674 /* The selection should support multiple things being selected */
675 choose_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(choose_view));
676 gtk_tree_selection_set_mode(choose_selection, GTK_SELECTION_MULTIPLE);
677
678 /* Catch button presses */
679 g_signal_connect(choose_view, "button-press-event",
680 G_CALLBACK(choose_button_event), 0);
681 g_signal_connect(choose_view, "button-release-event",
682 G_CALLBACK(choose_button_event), 0);
683 /* Catch row expansions so we can fill in placeholders */
684 g_signal_connect(choose_view, "row-expanded",
685 G_CALLBACK(choose_row_expanded), 0);
686
687 event_register("queue-list-changed", choose_set_state, 0);
688 event_register("playing-track-changed", choose_set_state, 0);
689 event_register("search-results-changed", choose_set_state, 0);
690 event_register("lookups-completed", choose_set_state, 0);
691 event_register("choose-more-tracks", choose_menu_moretracks, 0);
692
693 /* After a rescan we update the choose tree. We get a rescan-complete
694 * automatically at startup and upon connection too. */
695 event_register("rescan-complete", choose_refill, 0);
696
697 /* Make the widget scrollable */
698 GtkWidget *scrolled = scroll_widget(choose_view);
699
700 /* Pack vertically with the search widget */
701 GtkWidget *vbox = gtk_vbox_new(FALSE/*homogenous*/, 1/*spacing*/);
702 gtk_box_pack_start(GTK_BOX(vbox), scrolled,
703 TRUE/*expand*/, TRUE/*fill*/, 0/*padding*/);
704 gtk_box_pack_end(GTK_BOX(vbox), choose_search_widget(),
705 FALSE/*expand*/, FALSE/*fill*/, 0/*padding*/);
706
707 g_object_set_data(G_OBJECT(vbox), "type", (void *)&choose_tabtype);
708
709 /* Redirect keyboard activity to the search widget */
710 g_signal_connect(choose_view, "key-press-event",
711 G_CALLBACK(choose_key_event), choose_search_entry);
712 g_signal_connect(choose_view, "key-release-event",
713 G_CALLBACK(choose_key_event), choose_search_entry);
714
715 /* Enable dragging of tracks out */
716 gtk_drag_source_set(choose_view,
717 GDK_BUTTON1_MASK,
718 choose_targets,
719 1,
720 GDK_ACTION_COPY);
721 g_signal_connect(choose_view, "drag-data-get",
722 G_CALLBACK(choose_drag_data_get), NULL);
723 make_treeview_multidrag(choose_view,
724 choose_multidrag_predicate);
725
726 return vbox;
727}
728
729/*
730Local Variables:
731c-basic-offset:2
732comment-column:40
733fill-column:79
734indent-tabs-mode:nil
735End:
736*/