2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
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.
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.
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
23 #include <glib/gi18n.h>
25 #include "vikstatus.h"
26 #include "background.h"
27 #include "gtkcellrendererprogress.h"
29 static GtkWidget *bgwindow = NULL;
30 static GtkWidget *bgtreeview = NULL;
31 static GtkListStore *bgstore = NULL;
33 static GSList *statusbars_to_update = NULL;
35 static gint bgitemcount = 0;
45 void a_background_update_status ( VikStatusbar *vs, gchar *str )
48 vik_statusbar_set_message ( vs, 1, str );
52 static void background_thread_update ()
55 g_snprintf(buf, sizeof(buf), _("%d items"), bgitemcount);
56 g_slist_foreach ( statusbars_to_update, (GFunc) a_background_update_status, buf );
59 void a_background_thread_progress ( gpointer callbackdata, gdouble fraction )
61 gpointer *args = (gpointer *) callbackdata;
62 a_background_testcancel ( callbackdata );
64 gtk_list_store_set( GTK_LIST_STORE(bgstore), (GtkTreeIter *) args[5], PROGRESS_COLUMN, fraction, -1 );
67 args[6] = GINT_TO_POINTER(GPOINTER_TO_INT(args[6])-1);
69 background_thread_update();
72 static void thread_die ( gpointer args[6] )
74 vik_thr_free_func userdata_free_func = args[3];
76 userdata_free_func ( args[2] );
78 if ( GPOINTER_TO_INT(args[6]) )
80 bgitemcount -= GPOINTER_TO_INT(args[6]);
81 background_thread_update ();
84 g_free ( args[5] ); /* free iter */
87 g_thread_exit ( NULL );
90 void a_background_testcancel ( gpointer callbackdata )
92 gpointer *args = (gpointer *) callbackdata;
95 vik_thr_free_func cleanup = args[4];
102 void thread_helper ( gpointer args[6] )
105 vik_thr_func func = args[1];
106 gpointer userdata = args[2];
108 func ( userdata, args );
112 gtk_list_store_remove ( bgstore, (GtkTreeIter *) args[5] );
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 )
120 GtkTreeIter *piter = g_malloc ( sizeof ( GtkTreeIter ) );
121 gpointer *args = g_malloc ( sizeof(gpointer) * 7 );
123 args[0] = GINT_TO_POINTER(0);
126 args[3] = userdata_free_func;
127 args[4] = userdata_cancel_cleanup_func;
129 args[6] = GINT_TO_POINTER(number_items);
131 bgitemcount += number_items;
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 );
136 /* run the thread in the background */
137 g_thread_create( (GThreadFunc) thread_helper, args, FALSE, NULL );
140 void a_background_show_window ()
142 gtk_widget_show_all ( bgwindow );
145 static void cancel_job_with_iter ( GtkTreeIter *piter )
148 gtk_tree_model_get( GTK_TREE_MODEL(bgstore), piter, DATA_COLUMN, &args, -1 );
150 /* we know args still exists because it is free _after_ the list item is destroyed */
152 args[0] = GINT_TO_POINTER(1); /* set killswitch */
154 gtk_list_store_remove ( bgstore, piter );
157 static void bgwindow_response (GtkDialog *dialog, gint arg1 )
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
163 if ( arg1 == 1 ) /* cancel */
166 if ( gtk_tree_selection_get_selected ( gtk_tree_view_get_selection ( GTK_TREE_VIEW(bgtreeview) ), NULL, &iter ) )
167 cancel_job_with_iter ( &iter );
169 background_thread_update();
172 else if ( arg1 == 2 ) /* clear */
175 while ( gtk_tree_model_get_iter_first ( GTK_TREE_MODEL(bgstore), &iter ) )
176 cancel_job_with_iter ( &iter );
178 background_thread_update();
182 gtk_widget_hide ( bgwindow );
185 void a_background_init()
187 GtkCellRenderer *renderer;
188 GtkTreeViewColumn *column;
189 GtkWidget *scrolled_window;
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);
199 renderer = gtk_cell_renderer_text_new ();
200 column = gtk_tree_view_column_new_with_attributes ( _("Job"), renderer, "text", TITLE_COLUMN, NULL );
201 gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column );
203 renderer = gtk_cell_renderer_progress_new ();
204 column = gtk_tree_view_column_new_with_attributes ( _("Progress"), renderer, "percentage", PROGRESS_COLUMN, NULL );
205 gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column );
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 );
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 );
215 gtk_window_set_title ( GTK_WINDOW(bgwindow), _("Viking Background Jobs") );
216 /* don't destroy win */
217 g_signal_connect ( G_OBJECT(bgwindow), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL );
219 g_signal_connect ( G_OBJECT(bgwindow), "response", G_CALLBACK(bgwindow_response), 0 );
223 void a_background_add_status(VikStatusbar *vs)
225 statusbars_to_update = g_slist_prepend(statusbars_to_update,vs);
228 void a_background_remove_status(VikStatusbar *vs)
230 statusbars_to_update = g_slist_remove(statusbars_to_update,vs);