2 * This file is part of DisOrder
3 * Copyright (C) 2006-2009 Richard Kettlewell
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.
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.
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/>.
18 /** @file disobedience/queue-generic.c
19 * @brief Disobedience queue widgets
21 * This file provides contains code shared between all the queue-like
22 * widgets - the queue, the recent list and the added tracks list.
24 * This code is in the process of being rewritten to use the native list
27 * There are three @ref queuelike objects: @ref ql_queue, @ref
28 * ql_recent and @ref ql_added. Each has an associated queue linked
29 * list and a list store containing the contents.
31 * When new contents turn up we rearrange the list store accordingly.
33 * NB that while in the server the playing track is not in the queue, in
34 * Disobedience, the playing does live in @c ql_queue.q, despite its different
35 * status to everything else found in that list.
38 * - display playing row in a different color?
40 #include "disobedience.h"
42 #include "queue-generic.h"
43 #include "multidrag.h"
44 #include "autoscroll.h"
46 static const GtkTargetEntry queuelike_targets[] = {
48 (char *)"text/x-disorder-queued-tracks", /* drag type */
49 GTK_TARGET_SAME_WIDGET, /* rearrangement within a widget */
53 (char *)"text/x-disorder-playable-tracks", /* drag type */
54 GTK_TARGET_SAME_APP|GTK_TARGET_OTHER_WIDGET, /* copying between widgets */
59 /* Track detail lookup ----------------------------------------------------- */
61 static void queue_lookups_completed(const char attribute((unused)) *event,
62 void attribute((unused)) *eventdata,
64 struct queuelike *ql = callbackdata;
65 ql_update_list_store(ql);
68 /* Column formatting -------------------------------------------------------- */
70 /** @brief Format the 'when' column */
71 const char *column_when(const struct queue_entry *q,
72 const char attribute((unused)) *data) {
79 case playing_isscratch:
80 case playing_unplayed:
85 case playing_no_player:
87 case playing_scratched:
90 case playing_quitting:
98 strftime(when, sizeof when, "%H:%M", localtime_r(&t, &tm));
101 return xstrdup(when);
104 /** @brief Format the 'who' column */
105 const char *column_who(const struct queue_entry *q,
106 const char attribute((unused)) *data) {
108 return q->submitter ? q->submitter : "";
111 /** @brief Format one of the track name columns */
112 const char *column_namepart(const struct queue_entry *q,
114 D(("column_namepart"));
115 return namepart(q->track, "display", data);
118 /** @brief Format the length column */
119 const char *column_length(const struct queue_entry *q,
120 const char attribute((unused)) *data) {
121 D(("column_length"));
124 char *played = 0, *length = 0;
126 /* Work out what to say for the length */
127 l = namepart_length(q->track);
129 byte_xasprintf(&length, "%ld:%02ld", l / 60, l % 60);
131 byte_xasprintf(&length, "?:??");
132 /* For the currently playing track we want to report how much of the track
134 if(q == playing_track) {
135 /* log_state() arranges that we re-get the playing data whenever the
136 * pause/resume state changes */
137 if(last_state & DISORDER_TRACK_PAUSED)
138 l = playing_track->sofar;
143 l = playing_track->sofar + (now - last_playing);
145 byte_xasprintf(&played, "%ld:%02ld/%s", l / 60, l % 60, length);
151 /* List store maintenance -------------------------------------------------- */
153 /** @brief Return the @ref queue_entry corresponding to @p iter
154 * @param model Model that owns @p iter
155 * @param iter Tree iterator
156 * @return Pointer to queue entry
158 struct queue_entry *ql_iter_to_q(GtkTreeModel *model,
160 struct queuelike *ql = g_object_get_data(G_OBJECT(model), "ql");
162 memset(v, 0, sizeof v);
163 gtk_tree_model_get_value(model, iter, ql->ncolumns + QUEUEPOINTER_COLUMN, v);
164 assert(G_VALUE_TYPE(v) == G_TYPE_POINTER);
165 struct queue_entry *const q = g_value_get_pointer(v);
170 /** @brief Return the @ref queue_entry corresponding to @p path
171 * @param model Model to query
172 * @param path Path into tree
173 * @return Pointer to queue entry or NULL
175 struct queue_entry *ql_path_to_q(GtkTreeModel *model,
178 if(!gtk_tree_model_get_iter(model, iter, path))
180 return ql_iter_to_q(model, iter);
183 /** @brief Update one row of a list store
184 * @param q Queue entry
185 * @param iter Iterator referring to row or NULL to work it out
187 void ql_update_row(struct queue_entry *q,
189 const struct queuelike *const ql = q->ql;
191 D(("ql_update_row"));
192 /* If no iter was supplied, work it out */
193 GtkTreeIter my_iter[1];
195 gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store), my_iter);
196 struct queue_entry *qq;
197 for(qq = ql->q; qq && q != qq; qq = qq->next)
198 gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), my_iter);
203 /* Update all the columns */
204 for(int col = 0; col < ql->ncolumns; ++col) {
205 const char *const v = ql->columns[col].value(q,
206 ql->columns[col].data);
208 gtk_list_store_set(ql->store, iter,
212 gtk_list_store_set(ql->store, iter,
213 ql->ncolumns + QUEUEPOINTER_COLUMN, q,
215 if(q == playing_track)
216 gtk_list_store_set(ql->store, iter,
217 ql->ncolumns + BACKGROUND_COLUMN, BG_PLAYING,
218 ql->ncolumns + FOREGROUND_COLUMN, FG_PLAYING,
221 gtk_list_store_set(ql->store, iter,
222 ql->ncolumns + BACKGROUND_COLUMN, (char *)0,
223 ql->ncolumns + FOREGROUND_COLUMN, (char *)0,
227 /** @brief Update the list store
228 * @param ql Queuelike to update
230 * Called when new namepart data is available (and initially). Doesn't change
231 * the rows, just updates the cell values.
233 void ql_update_list_store(struct queuelike *ql) {
234 D(("ql_update_list_store"));
236 gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store), iter);
237 for(struct queue_entry *q = ql->q; q; q = q->next) {
238 ql_update_row(q, iter);
239 gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
243 struct newqueue_data {
244 struct queue_entry *old, *new;
247 static void record_queue_map(hash *h,
249 struct queue_entry *old,
250 struct queue_entry *new) {
251 struct newqueue_data *nqd;
253 if(!(nqd = hash_find(h, id))) {
254 static const struct newqueue_data empty[1];
255 hash_add(h, id, empty, HASH_INSERT);
256 nqd = hash_find(h, id);
265 static void dump_queue(struct queue_entry *head, struct queue_entry *mark) {
266 for(struct queue_entry *q = head; q; q = q->next) {
268 fprintf(stderr, "!");
269 fprintf(stderr, "%s", q->id);
271 fprintf(stderr, " ");
273 fprintf(stderr, "\n");
276 static void dump_rows(struct queuelike *ql) {
278 gboolean it = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store),
281 struct queue_entry *q = ql_iter_to_q(GTK_TREE_MODEL(ql->store), iter);
282 it = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
283 fprintf(stderr, "%s", q->id);
285 fprintf(stderr, " ");
287 fprintf(stderr, "\n");
291 /** @brief Reset the list store
292 * @param ql Queuelike to reset
293 * @param newq New queue contents/ordering
295 * Updates the queue to match @p newq
297 void ql_new_queue(struct queuelike *ql,
298 struct queue_entry *newq) {
302 /* Tell every queue entry which queue owns it */
303 //fprintf(stderr, "%s: filling in q->ql\n", ql->name);
304 for(struct queue_entry *q = newq; q; q = q->next)
307 //fprintf(stderr, "%s: constructing h\n", ql->name);
308 /* Construct map from id to new and old structures */
309 hash *h = hash_new(sizeof(struct newqueue_data));
310 for(struct queue_entry *q = ql->q; q; q = q->next)
311 record_queue_map(h, q->id, q, NULL);
312 for(struct queue_entry *q = newq; q; q = q->next)
313 record_queue_map(h, q->id, NULL, q);
315 /* The easy bit: delete rows not present any more. In the same pass we
316 * update the secret column containing the queue_entry pointer. */
317 //fprintf(stderr, "%s: deleting rows...\n", ql->name);
319 gboolean it = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store),
321 int inserted = 0, deleted = 0, kept = 0;
323 struct queue_entry *q = ql_iter_to_q(GTK_TREE_MODEL(ql->store), iter);
324 const struct newqueue_data *nqd = hash_find(h, q->id);
326 /* Tell this row that it belongs to the new version of the queue */
327 gtk_list_store_set(ql->store, iter,
328 ql->ncolumns + QUEUEPOINTER_COLUMN, nqd->new,
330 it = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
333 /* Delete this row (and move iter to the next one) */
334 //fprintf(stderr, " delete %s", q->id);
335 it = gtk_list_store_remove(ql->store, iter);
340 /* Now every row's secret column is right, but we might be missing new rows
341 * and they might be in the wrong order */
343 /* We're going to have to support arbitrary rearrangements, so we might as
344 * well add new elements at the end. */
345 //fprintf(stderr, "%s: adding rows...\n", ql->name);
346 struct queue_entry *after = 0;
347 for(struct queue_entry *q = newq; q; q = q->next) {
348 const struct newqueue_data *nqd = hash_find(h, q->id);
351 /* Try to insert at the right sort of place */
352 GtkTreeIter where[1];
353 gboolean wit = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store),
355 while(wit && ql_iter_to_q(GTK_TREE_MODEL(ql->store), where) != after)
356 wit = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), where);
358 gtk_list_store_insert_after(ql->store, iter, where);
360 gtk_list_store_append(ql->store, iter);
362 gtk_list_store_prepend(ql->store, iter);
363 gtk_list_store_set(ql->store, iter,
364 ql->ncolumns + QUEUEPOINTER_COLUMN, q,
366 //fprintf(stderr, " add %s", q->id);
372 /* Now exactly the right set of rows are present, and they have the right
373 * queue_entry pointers in their secret column, but they may be in the wrong
376 * The current code is simple but amounts to a bubble-sort - we might easily
377 * called gtk_tree_model_iter_next a couple of thousand times.
379 //fprintf(stderr, "%s: rearranging rows\n", ql->name);
380 //fprintf(stderr, "%s: queue state: ", ql->name);
381 //dump_queue(newq, 0);
382 //fprintf(stderr, "%s: row state: ", ql->name);
384 it = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store),
386 struct queue_entry *rq = newq; /* r for 'right, correct' */
387 int swaps = 0, searches = 0;
389 struct queue_entry *q = ql_iter_to_q(GTK_TREE_MODEL(ql->store), iter);
390 //fprintf(stderr, " rq = %p, q = %p\n", rq, q);
391 //fprintf(stderr, " rq->id = %s, q->id = %s\n", rq->id, q->id);
394 //fprintf(stderr, " mismatch\n");
395 GtkTreeIter next[1] = { *iter };
396 gboolean nit = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), next);
398 struct queue_entry *nq = ql_iter_to_q(GTK_TREE_MODEL(ql->store), next);
399 //fprintf(stderr, " candidate: %s\n", nq->id);
402 nit = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), next);
406 //fprintf(stderr, " found it\n");
407 gtk_list_store_swap(ql->store, iter, next);
409 //fprintf(stderr, "%s: new row state: ", ql->name);
413 /* ...and onto the next one */
414 it = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
418 fprintf(stderr, "%6s: %3d kept %3d inserted %3d deleted %3d swaps %4d searches\n", ql->name,
419 kept, inserted, deleted, swaps, searches);
421 //fprintf(stderr, "done\n");
423 /* Set the rest of the columns in new rows */
424 ql_update_list_store(ql);
428 /* Drag and drop ------------------------------------------------------------ */
430 /** @brief Identify the drop path
431 * @param w Destination tree view widget
432 * @param model Underlying tree model
433 * @param wx X coordinate
434 * @param wy Y coordinate
435 * @param posp Where to store relative position
436 * @return Target path or NULL
438 * This is used by ql_drag_motion() and ql_drag_data_received() to identify a
439 * drop would or does land. It's important that they use the same code since
440 * otherwise the visual feedback can be inconsistent with the actual effect!
442 static GtkTreePath *ql_drop_path(GtkWidget *w,
445 GtkTreeViewDropPosition *posp) {
446 GtkTreePath *path = NULL;
447 GtkTreeViewDropPosition pos;
448 GtkTreeIter iter[1], last[1];
451 gtk_tree_view_convert_widget_to_tree_coords(GTK_TREE_VIEW(w),
453 if(gtk_tree_view_get_dest_row_at_pos(GTK_TREE_VIEW(w),
457 //fprintf(stderr, "gtk_tree_view_get_dest_row_at_pos() -> TRUE\n");
458 // Normalize drop position
460 case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
461 pos = GTK_TREE_VIEW_DROP_BEFORE;
463 case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
464 pos = GTK_TREE_VIEW_DROP_AFTER;
468 } else if(gtk_tree_model_get_iter_first(model, iter)) {
469 /* If the pointer isn't over any particular row then either it's below
470 * the last row, in which case we want the dropzone to be below that row;
471 * or it's above the first row (in the column headings) in which case we
472 * want the dropzone to be above that row. */
474 /* Find the last row */
477 } while(gtk_tree_model_iter_next(model, iter));
478 /* The drop target is just after it */
479 pos = GTK_TREE_VIEW_DROP_AFTER;
482 /* The drop target will be just before the first row */
483 pos = GTK_TREE_VIEW_DROP_BEFORE;
485 path = gtk_tree_model_get_path(model, iter);
491 /** @brief Called when a drag moves within a candidate destination
492 * @param w Destination widget
493 * @param dc Drag context
494 * @param x Current pointer location
495 * @param y Current pointer location
496 * @param time_ Current time
497 * @param user_data Pointer to queuelike
498 * @return TRUE in a dropzone, otherwise FALSE
500 * This is the handler for the "drag-motion" signal.
502 static gboolean ql_drag_motion(GtkWidget *w,
507 gpointer user_data) {
508 struct queuelike *const ql = user_data;
509 GdkDragAction action = 0;
511 // GTK_DEST_DEFAULT_MOTION vets actions as follows:
512 // 1) if dc->suggested_action is in the gtk_drag_dest_set actions
513 // then dc->suggested_action is taken as the action.
514 // 2) otherwise if dc->actions intersects the gtk_drag_dest_set actions
515 // then the lowest-numbered member of the intersection is chosen.
516 // 3) otherwise no member is chosen and gdk_drag_status() is called
517 // with action=0 to refuse the drop.
518 if(dc->suggested_action) {
519 if(dc->suggested_action & (GDK_ACTION_MOVE|GDK_ACTION_COPY))
520 action = dc->suggested_action;
521 } else if(dc->actions & GDK_ACTION_MOVE)
522 action = GDK_ACTION_MOVE;
523 else if(dc->actions & GDK_ACTION_COPY)
524 action = GDK_ACTION_COPY;
525 /*fprintf(stderr, "suggested %#x actions %#x result %#x\n",
526 dc->suggested_action, dc->actions, action);*/
528 // If the action is acceptable then we see if this widget is acceptable
529 if(gtk_drag_dest_find_target(w, dc, NULL) == GDK_NONE)
533 //fprintf(stderr, "drag action: %u\n", action);
534 gdk_drag_status(dc, action, time_);
536 GtkTreeViewDropPosition pos;
538 // Find the drop target
539 GtkTreePath *path = ql_drop_path(w, GTK_TREE_MODEL(ql->store), x, y, &pos);
540 // Highlight drop target
541 gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW(w), path, pos);
543 gtk_tree_path_free(path);
545 /* TODO _something_ is not quite right here. Supposedly if action=0 we
546 * should probably be returning FALSE; _but_ actually we always want to
547 * support dropping, as dropping into the big empty space at the bottom
548 * should be the same as dropping at the end of the last row.
550 * As the code stands the drop works but the visual feedback is not quite
553 autoscroll_add(GTK_TREE_VIEW(w));
554 return TRUE; /* We are (always) in a drop zone */
557 /** @brief Called when a drag moves leaves a candidate destination
558 * @param w Destination widget
559 * @param dc Drag context
560 * @param time_ Current time
561 * @param user_data Pointer to queuelike
563 * This is the handler for the "drag-leave" signal.
565 * It turns out that we get a drag-leave event when the data is dropped, too
566 * (See _gtk_drag_dest_handle_event). This seems logically consistent and is
567 * convenient too - for instance it's why autoscroll_remove() gets called at
568 * the end of a drag+drop sequence.
570 static void ql_drag_leave(GtkWidget *w,
571 GdkDragContext attribute((unused)) *dc,
572 guint attribute((unused)) time_,
573 gpointer attribute((unused)) user_data) {
574 //struct queuelike *const ql = user_data;
576 gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW(w), NULL, 0);
577 autoscroll_remove(GTK_TREE_VIEW(w));
580 /** @brief Callback to add selected tracks to the selection data
582 * Called from ql_drag_data_get().
584 static void ql_drag_data_get_collect(GtkTreeModel *model,
585 GtkTreePath attribute((unused)) *path,
588 struct dynstr *const result = data;
589 struct queue_entry *const q = ql_iter_to_q(model, iter);
591 dynstr_append_string(result, q->id);
592 dynstr_append(result, '\n');
593 dynstr_append_string(result, q->track);
594 dynstr_append(result, '\n');
597 /** @brief Called to extract the dragged data from the source queuelike
598 * @param w Source widget (the tree view)
599 * @param dc Drag context
600 * @param data Where to put the answer
601 * @param info_ Target @c info parameter
602 * @param time_ Time data requested (for some reason not a @c time_t)
603 * @param user_data The queuelike
605 * The list of tracks is converted into a single string, consisting of IDs
606 * and track names. Each is terminated by a newline. Including both ID and
607 * track name means that the receiver can use whichever happens to be more
610 * If there are no IDs for rows in this widget then the ID half is undefined.
612 * This is the handler for the "drag-data-get" signal.
614 static void ql_drag_data_get(GtkWidget attribute((unused)) *w,
615 GdkDragContext attribute((unused)) *dc,
616 GtkSelectionData *data,
617 guint attribute((unused)) info_,
618 guint attribute((unused)) time_,
619 gpointer user_data) {
620 struct queuelike *const ql = user_data;
621 struct dynstr result[1];
624 gtk_tree_selection_selected_foreach(ql->selection,
625 ql_drag_data_get_collect,
627 // TODO must not be able to drag playing track!
628 //fprintf(stderr, "drag-data-get: %.*s\n",
629 // result->nvec, result->vec);
630 /* gtk_selection_data_set_text() insists that data->target is one of a
631 * variety of stringy atoms. TODO: where does this value actually come
633 gtk_selection_data_set(data,
635 8, (guchar *)result->vec, result->nvec);
638 /** @brief Called when drag data is received
639 * @param w Target widget (the tree view)
640 * @param dc Drag context
641 * @param x The drop location
642 * @param y The drop location
643 * @param data The selection data
644 * @param info_ The target type that was chosen
645 * @param time_ Time data received (for some reason not a @c time_t)
646 * @param user_data The queuelike
648 * This is the handler for the "drag-data-received" signal.
650 static void ql_drag_data_received(GtkWidget attribute((unused)) *w,
651 GdkDragContext attribute((unused)) *dc,
654 GtkSelectionData *data,
655 guint attribute((unused)) info_,
656 guint attribute((unused)) time_,
657 gpointer user_data) {
658 struct queuelike *const ql = user_data;
660 struct vector ids[1], tracks[1];
663 //fprintf(stderr, "drag-data-received: %d,%d info_=%u\n", x, y, info_);
664 /* Get the selection string */
665 p = result = (char *)gtk_selection_data_get_text(data);
667 //fprintf(stderr, "gtk_selection_data_get_text() returned NULL\n");
670 //fprintf(stderr, "%s--\n", result);
671 /* Parse it back into IDs and track names */
675 char *nl = strchr(p, '\n');
679 //fprintf(stderr, " %s\n", p);
680 vector_append(parity++ & 1 ? tracks : ids, xstrdup(p));
684 if(ids->nvec != tracks->nvec) {
685 //fprintf(stderr, " inconsistent drag data!\n");
688 vector_terminate(ids);
689 vector_terminate(tracks);
690 /* Figure out which row the drop precedes (if any) */
691 GtkTreeViewDropPosition pos;
692 struct queue_entry *q;
693 GtkTreePath *path = ql_drop_path(w, GTK_TREE_MODEL(ql->store), x, y, &pos);
695 q = ql_path_to_q(GTK_TREE_MODEL(ql->store), path);
697 /* This generally means a drop past the end of the queue. We find the last
698 * element in the queue and ask to move after that. */
699 for(q = ql->q; q && q->next; q = q->next)
703 case GTK_TREE_VIEW_DROP_BEFORE:
704 case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
707 //fprintf(stderr, " ...but we like to drop near %s\n",
708 // q ? q->id : "NULL");
714 /* Guarantee we never drop an empty list */
717 /* Note that q->id can match one of ids[]. This doesn't matter for
718 * moveafter but TODO may matter for playlist support. */
721 /* Rearrangement. Send ID and track data. */
722 ql->drop(ql, tracks->nvec, tracks->vec, ids->vec, q);
725 /* Copying between widgets. IDs mean nothing so don't send them. */
726 ql->drop(ql, tracks->nvec, tracks->vec, NULL, q);
731 /** @brief Initialize a @ref queuelike */
732 GtkWidget *init_queuelike(struct queuelike *ql) {
733 D(("init_queuelike"));
734 /* Create the list store. We add an extra column to hold a pointer to the
736 GType *types = xcalloc(ql->ncolumns + EXTRA_COLUMNS, sizeof (GType));
737 for(int n = 0; n < ql->ncolumns + EXTRA_COLUMNS; ++n)
738 types[n] = G_TYPE_STRING;
739 types[ql->ncolumns + QUEUEPOINTER_COLUMN] = G_TYPE_POINTER;
740 ql->store = gtk_list_store_newv(ql->ncolumns + EXTRA_COLUMNS, types);
741 g_object_set_data(G_OBJECT(ql->store), "ql", (void *)ql);
743 /* Create the view */
744 ql->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(ql->store));
745 gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ql->view), TRUE);
747 /* Create cell renderers and label columns */
748 for(int n = 0; n < ql->ncolumns; ++n) {
749 GtkCellRenderer *r = gtk_cell_renderer_text_new();
750 if(ql->columns[n].flags & COL_ELLIPSIZE)
751 g_object_set(r, "ellipsize", PANGO_ELLIPSIZE_END, (char *)0);
752 if(ql->columns[n].flags & COL_RIGHT)
753 g_object_set(r, "xalign", (gfloat)1.0, (char *)0);
754 GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes
755 (ql->columns[n].name,
758 "background", ql->ncolumns + BACKGROUND_COLUMN,
759 "foreground", ql->ncolumns + FOREGROUND_COLUMN,
761 gtk_tree_view_column_set_resizable(c, TRUE);
762 gtk_tree_view_column_set_reorderable(c, TRUE);
763 if(ql->columns[n].flags & COL_EXPAND)
764 g_object_set(c, "expand", TRUE, (char *)0);
765 gtk_tree_view_append_column(GTK_TREE_VIEW(ql->view), c);
768 /* The selection should support multiple things being selected */
769 ql->selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(ql->view));
770 gtk_tree_selection_set_mode(ql->selection, GTK_SELECTION_MULTIPLE);
772 /* Catch button presses */
773 g_signal_connect(ql->view, "button-press-event",
774 G_CALLBACK(ql_button_release), ql);
778 /* Originally this was:
780 * gtk_tree_view_set_reorderable(GTK_TREE_VIEW(ql->view), TRUE);
782 * However this has a two deficiencies:
784 * 1) Only one row can be dragged at once. It would be nice
785 * to be able to do bulk rearrangements since the server
786 * can cope with that well.
787 * 2) Dragging between windows is not possible. When playlist
788 * support appears, it should be possible to drag tracks
789 * from the choose tag into the playlist.
791 * At the time of writing neither of these problems are fully solved, the
792 * code as it stands is just a stepping stone in that direction.
795 /* This view will act as a drag source */
796 gtk_drag_source_set(ql->view,
799 sizeof queuelike_targets / sizeof *queuelike_targets,
801 /* This view will act as a drag destination */
802 gtk_drag_dest_set(ql->view,
803 GTK_DEST_DEFAULT_HIGHLIGHT|GTK_DEST_DEFAULT_DROP,
805 sizeof queuelike_targets / sizeof *queuelike_targets,
806 GDK_ACTION_MOVE|GDK_ACTION_COPY);
807 g_signal_connect(ql->view, "drag-motion",
808 G_CALLBACK(ql_drag_motion), ql);
809 g_signal_connect(ql->view, "drag-leave",
810 G_CALLBACK(ql_drag_leave), ql);
811 g_signal_connect(ql->view, "drag-data-get",
812 G_CALLBACK(ql_drag_data_get), ql);
813 g_signal_connect(ql->view, "drag-data-received",
814 G_CALLBACK(ql_drag_data_received), ql);
815 make_treeview_multidrag(ql->view, NULL);
816 // TODO playing track should be refused by predicate arg
818 /* For queues that cannot accept a drop we still accept a copy out */
819 gtk_drag_source_set(ql->view,
822 sizeof queuelike_targets / sizeof *queuelike_targets,
824 g_signal_connect(ql->view, "drag-data-get",
825 G_CALLBACK(ql_drag_data_get), ql);
826 make_treeview_multidrag(ql->view, NULL);
833 /* Update display text when lookups complete */
834 event_register("lookups-completed", queue_lookups_completed, ql);
836 GtkWidget *scrolled = scroll_widget(ql->view);
837 g_object_set_data(G_OBJECT(scrolled), "type", (void *)ql_tabtype(ql));