]>
Commit | Line | Data |
---|---|---|
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> | |
23 | #include <glib/gi18n.h> | |
24 | ||
25 | #include "vikstatus.h" | |
26 | #include "background.h" | |
27 | ||
28 | static GtkWidget *bgwindow = NULL; | |
29 | static GtkWidget *bgtreeview = NULL; | |
30 | static GtkListStore *bgstore = NULL; | |
31 | ||
32 | static GSList *statusbars_to_update = NULL; | |
33 | ||
34 | static gint bgitemcount = 0; | |
35 | ||
36 | enum | |
37 | { | |
38 | TITLE_COLUMN = 0, | |
39 | PROGRESS_COLUMN, | |
40 | DATA_COLUMN, | |
41 | N_COLUMNS, | |
42 | }; | |
43 | ||
44 | void a_background_update_status ( VikStatusbar *vs, gchar *str ) | |
45 | { | |
46 | gdk_threads_enter (); | |
47 | vik_statusbar_set_message ( vs, 1, str ); | |
48 | gdk_threads_leave (); | |
49 | } | |
50 | ||
51 | static void background_thread_update () | |
52 | { | |
53 | static gchar buf[20]; | |
54 | g_snprintf(buf, sizeof(buf), _("%d items"), bgitemcount); | |
55 | g_slist_foreach ( statusbars_to_update, (GFunc) a_background_update_status, buf ); | |
56 | } | |
57 | ||
58 | void a_background_thread_progress ( gpointer callbackdata, gdouble fraction ) | |
59 | { | |
60 | gpointer *args = (gpointer *) callbackdata; | |
61 | a_background_testcancel ( callbackdata ); | |
62 | gdk_threads_enter(); | |
63 | gtk_list_store_set( GTK_LIST_STORE(bgstore), (GtkTreeIter *) args[5], PROGRESS_COLUMN, fraction*100, -1 ); | |
64 | gdk_threads_leave(); | |
65 | ||
66 | args[6] = GINT_TO_POINTER(GPOINTER_TO_INT(args[6])-1); | |
67 | bgitemcount--; | |
68 | background_thread_update(); | |
69 | } | |
70 | ||
71 | static void thread_die ( gpointer args[6] ) | |
72 | { | |
73 | vik_thr_free_func userdata_free_func = args[3]; | |
74 | ||
75 | userdata_free_func ( args[2] ); | |
76 | ||
77 | if ( GPOINTER_TO_INT(args[6]) ) | |
78 | { | |
79 | bgitemcount -= GPOINTER_TO_INT(args[6]); | |
80 | background_thread_update (); | |
81 | } | |
82 | ||
83 | g_free ( args[5] ); /* free iter */ | |
84 | g_free ( args ); | |
85 | ||
86 | g_thread_exit ( NULL ); | |
87 | } | |
88 | ||
89 | void a_background_testcancel ( gpointer callbackdata ) | |
90 | { | |
91 | gpointer *args = (gpointer *) callbackdata; | |
92 | if ( args[0] ) | |
93 | { | |
94 | vik_thr_free_func cleanup = args[4]; | |
95 | if ( cleanup ) | |
96 | cleanup ( args[2] ); | |
97 | thread_die( args ); | |
98 | } | |
99 | } | |
100 | ||
101 | void thread_helper ( gpointer args[6] ) | |
102 | { | |
103 | /* unpack args */ | |
104 | vik_thr_func func = args[1]; | |
105 | gpointer userdata = args[2]; | |
106 | ||
107 | g_debug(__FUNCTION__); | |
108 | ||
109 | func ( userdata, args ); | |
110 | ||
111 | gdk_threads_enter(); | |
112 | if ( ! args[0] ) | |
113 | gtk_list_store_remove ( bgstore, (GtkTreeIter *) args[5] ); | |
114 | gdk_threads_leave(); | |
115 | ||
116 | thread_die ( args ); | |
117 | } | |
118 | ||
119 | 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 ) | |
120 | { | |
121 | GtkTreeIter *piter = g_malloc ( sizeof ( GtkTreeIter ) ); | |
122 | gpointer *args = g_malloc ( sizeof(gpointer) * 7 ); | |
123 | ||
124 | g_debug(__FUNCTION__); | |
125 | ||
126 | args[0] = GINT_TO_POINTER(0); | |
127 | args[1] = func; | |
128 | args[2] = userdata; | |
129 | args[3] = userdata_free_func; | |
130 | args[4] = userdata_cancel_cleanup_func; | |
131 | args[5] = piter; | |
132 | args[6] = GINT_TO_POINTER(number_items); | |
133 | ||
134 | bgitemcount += number_items; | |
135 | ||
136 | gtk_list_store_append ( bgstore, piter ); | |
137 | gtk_list_store_set ( bgstore, piter, | |
138 | TITLE_COLUMN, message, | |
139 | PROGRESS_COLUMN, 0.0, | |
140 | DATA_COLUMN, args, | |
141 | -1 ); | |
142 | ||
143 | /* run the thread in the background */ | |
144 | g_thread_create( (GThreadFunc) thread_helper, args, FALSE, NULL ); | |
145 | } | |
146 | ||
147 | void a_background_show_window () | |
148 | { | |
149 | gtk_widget_show_all ( bgwindow ); | |
150 | } | |
151 | ||
152 | static void cancel_job_with_iter ( GtkTreeIter *piter ) | |
153 | { | |
154 | gpointer *args; | |
155 | ||
156 | g_debug(__FUNCTION__); | |
157 | ||
158 | gtk_tree_model_get( GTK_TREE_MODEL(bgstore), piter, DATA_COLUMN, &args, -1 ); | |
159 | ||
160 | /* we know args still exists because it is free _after_ the list item is destroyed */ | |
161 | /* need MUTEX ? */ | |
162 | args[0] = GINT_TO_POINTER(1); /* set killswitch */ | |
163 | ||
164 | gtk_list_store_remove ( bgstore, piter ); | |
165 | } | |
166 | ||
167 | static void bgwindow_response (GtkDialog *dialog, gint arg1 ) | |
168 | { | |
169 | /* note this function is a signal handler called back from the GTK main loop, | |
170 | * so GDK is already locked. We need to release the lock before calling | |
171 | * thread-safe routines | |
172 | */ | |
173 | if ( arg1 == 1 ) /* cancel */ | |
174 | { | |
175 | GtkTreeIter iter; | |
176 | if ( gtk_tree_selection_get_selected ( gtk_tree_view_get_selection ( GTK_TREE_VIEW(bgtreeview) ), NULL, &iter ) ) | |
177 | cancel_job_with_iter ( &iter ); | |
178 | gdk_threads_leave(); | |
179 | background_thread_update(); | |
180 | gdk_threads_enter(); | |
181 | } | |
182 | else if ( arg1 == 2 ) /* clear */ | |
183 | { | |
184 | GtkTreeIter iter; | |
185 | while ( gtk_tree_model_get_iter_first ( GTK_TREE_MODEL(bgstore), &iter ) ) | |
186 | cancel_job_with_iter ( &iter ); | |
187 | gdk_threads_leave(); | |
188 | background_thread_update(); | |
189 | gdk_threads_enter(); | |
190 | } | |
191 | else /* OK */ | |
192 | gtk_widget_hide ( bgwindow ); | |
193 | } | |
194 | ||
195 | void a_background_init() | |
196 | { | |
197 | GtkCellRenderer *renderer; | |
198 | GtkTreeViewColumn *column; | |
199 | GtkWidget *scrolled_window; | |
200 | ||
201 | g_debug(__FUNCTION__); | |
202 | ||
203 | /* store & treeview */ | |
204 | bgstore = gtk_list_store_new ( N_COLUMNS, G_TYPE_STRING, G_TYPE_DOUBLE, G_TYPE_POINTER ); | |
205 | bgtreeview = gtk_tree_view_new_with_model ( GTK_TREE_MODEL(bgstore) ); | |
206 | gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (bgtreeview), TRUE); | |
207 | gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (bgtreeview)), | |
208 | GTK_SELECTION_SINGLE); | |
209 | ||
210 | /* add columns */ | |
211 | renderer = gtk_cell_renderer_text_new (); | |
212 | column = gtk_tree_view_column_new_with_attributes ( _("Job"), renderer, "text", TITLE_COLUMN, NULL ); | |
213 | gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column ); | |
214 | ||
215 | renderer = gtk_cell_renderer_progress_new (); | |
216 | column = gtk_tree_view_column_new_with_attributes ( _("Progress"), renderer, "value", PROGRESS_COLUMN, NULL ); | |
217 | gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column ); | |
218 | ||
219 | /* setup window */ | |
220 | scrolled_window = gtk_scrolled_window_new ( NULL, NULL ); | |
221 | gtk_container_add ( GTK_CONTAINER(scrolled_window), bgtreeview ); | |
222 | gtk_scrolled_window_set_policy ( GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC ); | |
223 | ||
224 | bgwindow = gtk_dialog_new_with_buttons ( "", NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_DELETE, 1, GTK_STOCK_CLEAR, 2, NULL ); | |
225 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(bgwindow)->vbox), scrolled_window, TRUE, TRUE, 0 ); | |
226 | gtk_window_set_default_size ( GTK_WINDOW(bgwindow), 400, 400 ); | |
227 | gtk_window_set_title ( GTK_WINDOW(bgwindow), _("Viking Background Jobs") ); | |
228 | /* don't destroy win */ | |
229 | g_signal_connect ( G_OBJECT(bgwindow), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL ); | |
230 | ||
231 | g_signal_connect ( G_OBJECT(bgwindow), "response", G_CALLBACK(bgwindow_response), 0 ); | |
232 | ||
233 | } | |
234 | ||
235 | void a_background_add_status(VikStatusbar *vs) | |
236 | { | |
237 | statusbars_to_update = g_slist_prepend(statusbars_to_update,vs); | |
238 | } | |
239 | ||
240 | void a_background_remove_status(VikStatusbar *vs) | |
241 | { | |
242 | statusbars_to_update = g_slist_remove(statusbars_to_update,vs); | |
243 | } | |
244 |