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1 | /* |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <gtk/gtk.h> | |
4c77d5e0 GB |
23 | #include <glib/gi18n.h> |
24 | ||
50a14534 EB |
25 | #include "vikstatus.h" |
26 | #include "background.h" | |
27 | #include "gtkcellrendererprogress.h" | |
28 | ||
29 | static GtkWidget *bgwindow = NULL; | |
30 | static GtkWidget *bgtreeview = NULL; | |
31 | static GtkListStore *bgstore = NULL; | |
32 | ||
33 | static GSList *statusbars_to_update = NULL; | |
34 | ||
35 | static gint bgitemcount = 0; | |
36 | ||
37 | enum | |
38 | { | |
39 | TITLE_COLUMN, | |
40 | PROGRESS_COLUMN, | |
41 | DATA_COLUMN, | |
42 | N_COLUMNS, | |
43 | }; | |
44 | ||
45 | void a_background_update_status ( VikStatusbar *vs, gchar *str ) | |
46 | { | |
47 | gdk_threads_enter (); | |
48 | vik_statusbar_set_message ( vs, 1, str ); | |
49 | gdk_threads_leave (); | |
50 | } | |
51 | ||
52 | static void background_thread_update () | |
53 | { | |
54 | static gchar buf[20]; | |
4c77d5e0 | 55 | g_snprintf(buf, sizeof(buf), _("%d items"), bgitemcount); |
50a14534 EB |
56 | g_slist_foreach ( statusbars_to_update, (GFunc) a_background_update_status, buf ); |
57 | } | |
58 | ||
59 | void a_background_thread_progress ( gpointer callbackdata, gdouble fraction ) | |
60 | { | |
61 | gpointer *args = (gpointer *) callbackdata; | |
62 | a_background_testcancel ( callbackdata ); | |
63 | gdk_threads_enter(); | |
64 | gtk_list_store_set( GTK_LIST_STORE(bgstore), (GtkTreeIter *) args[5], PROGRESS_COLUMN, fraction, -1 ); | |
65 | gdk_threads_leave(); | |
66 | ||
67 | args[6] = GINT_TO_POINTER(GPOINTER_TO_INT(args[6])-1); | |
68 | bgitemcount--; | |
69 | background_thread_update(); | |
70 | } | |
71 | ||
72 | static void thread_die ( gpointer args[6] ) | |
73 | { | |
74 | vik_thr_free_func userdata_free_func = args[3]; | |
75 | ||
76 | userdata_free_func ( args[2] ); | |
77 | ||
78 | if ( GPOINTER_TO_INT(args[6]) ) | |
79 | { | |
80 | bgitemcount -= GPOINTER_TO_INT(args[6]); | |
81 | background_thread_update (); | |
82 | } | |
83 | ||
84 | g_free ( args[5] ); /* free iter */ | |
85 | g_free ( args ); | |
86 | ||
87 | g_thread_exit ( NULL ); | |
88 | } | |
89 | ||
90 | void a_background_testcancel ( gpointer callbackdata ) | |
91 | { | |
92 | gpointer *args = (gpointer *) callbackdata; | |
93 | if ( args[0] ) | |
94 | { | |
95 | vik_thr_free_func cleanup = args[4]; | |
96 | if ( cleanup ) | |
97 | cleanup ( args[2] ); | |
98 | thread_die( args ); | |
99 | } | |
100 | } | |
101 | ||
102 | void thread_helper ( gpointer args[6] ) | |
103 | { | |
104 | /* unpack args */ | |
105 | vik_thr_func func = args[1]; | |
106 | gpointer userdata = args[2]; | |
107 | ||
108 | func ( userdata, args ); | |
109 | ||
50a14534 EB |
110 | gdk_threads_enter(); |
111 | if ( ! args[0] ) | |
112 | gtk_list_store_remove ( bgstore, (GtkTreeIter *) args[5] ); | |
113 | gdk_threads_leave(); | |
114 | ||
115 | thread_die ( args ); | |
116 | } | |
117 | ||
118 | void a_background_thread ( GtkWindow *parent, const gchar *message, vik_thr_func func, gpointer userdata, vik_thr_free_func userdata_free_func, vik_thr_free_func userdata_cancel_cleanup_func, gint number_items ) | |
119 | { | |
120 | GtkTreeIter *piter = g_malloc ( sizeof ( GtkTreeIter ) ); | |
121 | gpointer *args = g_malloc ( sizeof(gpointer) * 7 ); | |
122 | ||
123 | args[0] = GINT_TO_POINTER(0); | |
124 | args[1] = func; | |
125 | args[2] = userdata; | |
126 | args[3] = userdata_free_func; | |
127 | args[4] = userdata_cancel_cleanup_func; | |
128 | args[5] = piter; | |
129 | args[6] = GINT_TO_POINTER(number_items); | |
130 | ||
131 | bgitemcount += number_items; | |
132 | ||
133 | gtk_list_store_append ( bgstore, piter ); | |
134 | gtk_list_store_set ( bgstore, piter, TITLE_COLUMN, message, PROGRESS_COLUMN, 0.0, DATA_COLUMN, args, -1 ); | |
135 | ||
136 | /* run the thread in the background */ | |
137 | g_thread_create( (GThreadFunc) thread_helper, args, FALSE, NULL ); | |
138 | } | |
139 | ||
140 | void a_background_show_window () | |
141 | { | |
142 | gtk_widget_show_all ( bgwindow ); | |
143 | } | |
144 | ||
145 | static void cancel_job_with_iter ( GtkTreeIter *piter ) | |
146 | { | |
147 | gpointer *args; | |
148 | gtk_tree_model_get( GTK_TREE_MODEL(bgstore), piter, DATA_COLUMN, &args, -1 ); | |
149 | ||
150 | /* we know args still exists because it is free _after_ the list item is destroyed */ | |
151 | /* need MUTEX ? */ | |
152 | args[0] = GINT_TO_POINTER(1); /* set killswitch */ | |
153 | ||
50a14534 EB |
154 | gtk_list_store_remove ( bgstore, piter ); |
155 | } | |
156 | ||
157 | static void bgwindow_response (GtkDialog *dialog, gint arg1 ) | |
158 | { | |
439f34ec AF |
159 | /* note this function is a signal handler called back from the GTK main loop, |
160 | * so GDK is already locked. We need to release the lock before calling | |
161 | * thread-safe routines | |
162 | */ | |
163 | if ( arg1 == 1 ) /* cancel */ | |
164 | { | |
165 | GtkTreeIter iter; | |
166 | if ( gtk_tree_selection_get_selected ( gtk_tree_view_get_selection ( GTK_TREE_VIEW(bgtreeview) ), NULL, &iter ) ) | |
167 | cancel_job_with_iter ( &iter ); | |
168 | gdk_threads_leave(); | |
169 | background_thread_update(); | |
170 | gdk_threads_enter(); | |
171 | } | |
50a14534 | 172 | else if ( arg1 == 2 ) /* clear */ |
439f34ec AF |
173 | { |
174 | GtkTreeIter iter; | |
175 | while ( gtk_tree_model_get_iter_first ( GTK_TREE_MODEL(bgstore), &iter ) ) | |
176 | cancel_job_with_iter ( &iter ); | |
439f34ec AF |
177 | gdk_threads_leave(); |
178 | background_thread_update(); | |
179 | gdk_threads_enter(); | |
180 | } | |
50a14534 EB |
181 | else /* OK */ |
182 | gtk_widget_hide ( bgwindow ); | |
183 | } | |
184 | ||
185 | void a_background_init() | |
186 | { | |
187 | GtkCellRenderer *renderer; | |
188 | GtkTreeViewColumn *column; | |
189 | GtkWidget *scrolled_window; | |
190 | ||
191 | /* store & treeview */ | |
192 | bgstore = gtk_list_store_new ( N_COLUMNS, G_TYPE_STRING, G_TYPE_DOUBLE, G_TYPE_POINTER ); | |
193 | bgtreeview = gtk_tree_view_new_with_model ( GTK_TREE_MODEL(bgstore) ); | |
194 | gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (bgtreeview), TRUE); | |
195 | gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (bgtreeview)), | |
196 | GTK_SELECTION_SINGLE); | |
197 | ||
198 | /* add columns */ | |
199 | renderer = gtk_cell_renderer_text_new (); | |
4c77d5e0 | 200 | column = gtk_tree_view_column_new_with_attributes ( _("Job"), renderer, "text", TITLE_COLUMN, NULL ); |
50a14534 EB |
201 | gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column ); |
202 | ||
203 | renderer = gtk_cell_renderer_progress_new (); | |
4c77d5e0 | 204 | column = gtk_tree_view_column_new_with_attributes ( _("Progress"), renderer, "percentage", PROGRESS_COLUMN, NULL ); |
50a14534 EB |
205 | gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column ); |
206 | ||
207 | /* setup window */ | |
208 | scrolled_window = gtk_scrolled_window_new ( NULL, NULL ); | |
209 | gtk_container_add ( GTK_CONTAINER(scrolled_window), bgtreeview ); | |
210 | gtk_scrolled_window_set_policy ( GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC ); | |
211 | ||
212 | bgwindow = gtk_dialog_new_with_buttons ( "", NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_DELETE, 1, GTK_STOCK_CLEAR, 2, NULL ); | |
213 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(bgwindow)->vbox), scrolled_window, TRUE, TRUE, 0 ); | |
214 | gtk_window_set_default_size ( GTK_WINDOW(bgwindow), 400, 400 ); | |
4c77d5e0 | 215 | gtk_window_set_title ( GTK_WINDOW(bgwindow), _("Viking Background Jobs") ); |
50a14534 EB |
216 | /* don't destroy win */ |
217 | g_signal_connect ( G_OBJECT(bgwindow), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL ); | |
218 | ||
219 | g_signal_connect ( G_OBJECT(bgwindow), "response", G_CALLBACK(bgwindow_response), 0 ); | |
220 | ||
221 | } | |
222 | ||
223 | void a_background_add_status(VikStatusbar *vs) | |
224 | { | |
225 | statusbars_to_update = g_slist_prepend(statusbars_to_update,vs); | |
226 | } | |
227 | ||
228 | void a_background_remove_status(VikStatusbar *vs) | |
229 | { | |
230 | statusbars_to_update = g_slist_remove(statusbars_to_update,vs); | |
231 | } | |
232 |