Add a "Search entry" demo for icons and progress in an entry

svn path=/trunk/; revision=21937

1 files changed, 270 insertions, 0 deletions

diff --git a/demos/gtk-demo/search_entry.c b/demos/gtk-demo/search_entry.c
new file mode 100644
index 0000000000..ffeed94994
--- /dev/null
+++ b/demos/gtk-demo/search_entry.c
@@ -0,0 +1,270 @@
+/* Search Entry 
+ *
+ * GtkEntry allows to display icons and progress information. 
+ * This demo shows how to use these features in a search entry.
+ */
+
+#include <gtk/gtk.h>
+
+static GtkWidget *window = NULL;
+static GtkWidget *menu = NULL;
+static GtkWidget *notebook = NULL;
+
+static guint search_progress_id = 0;
+static guint finish_search_id = 0;
+
+static void
+show_find_button (void)
+{
+  gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), 0);
+}
+
+static void
+show_cancel_button (void)
+{
+  gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), 1);
+}
+
+static gboolean
+search_progress (gpointer data)
+{
+  gtk_entry_progress_pulse (GTK_ENTRY (data));
+
+  return TRUE;
+}
+
+static void
+search_progress_done (GtkEntry *entry)
+{
+  gtk_entry_set_progress_fraction (entry, 0.0);
+}
+
+static gboolean
+finish_search (GtkButton *button)
+{
+  show_find_button ();
+  g_source_remove (search_progress_id);
+  search_progress_id = 0;
+  
+  return FALSE;
+}
+
+static gboolean
+start_search_feedback (gpointer data)
+{
+  search_progress_id = g_timeout_add_full (G_PRIORITY_DEFAULT, 100, 
+                                           (GSourceFunc)search_progress, data,
+                                           (GDestroyNotify)search_progress_done);
+  return FALSE;
+}
+
+static void
+start_search (GtkButton *button, 
+              GtkEntry  *entry)
+{
+  show_cancel_button ();
+  search_progress_id = g_timeout_add_seconds (1, (GSourceFunc)start_search_feedback, entry);
+  finish_search_id = g_timeout_add_seconds (15, (GSourceFunc)finish_search, button);
+}
+
+
+static void
+stop_search (GtkButton *button,
+             gpointer   data)
+{
+  g_source_remove (finish_search_id);
+  finish_search (button);
+}
+
+static void
+icon_pressed_cb (GtkEntry       *entry, 
+                 gint            position,
+                 GdkEventButton *event,
+                 gpointer        data)
+{
+  if (position == GTK_ENTRY_ICON_PRIMARY)
+    gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 
+                    event->button, event->time);
+  else 
+    gtk_entry_set_text (entry, "");
+}
+
+static void
+text_changed_cb (GtkEntry   *entry,
+                 GParamSpec *pspec,
+                 GtkWidget  *button)
+{
+  gboolean has_text;
+
+  has_text = gtk_entry_get_text_length (entry) > 0;
+  gtk_entry_set_icon_sensitive (entry, 
+                                GTK_ENTRY_ICON_SECONDARY,
+                                has_text);
+  gtk_widget_set_sensitive (button, has_text);
+}
+
+static void
+activate_cb (GtkEntry  *entry,
+             GtkButton *button)
+{
+  if (search_progress_id != 0)
+    return;
+
+  start_search (button, entry);
+
+}
+
+static void
+search_by_name (GtkWidget *item, 
+                GtkEntry  *entry)
+{
+  gtk_entry_set_icon_from_stock (entry,
+                                 GTK_ENTRY_ICON_PRIMARY,
+                                 GTK_STOCK_FIND);
+  gtk_entry_set_icon_tooltip_text (entry,
+                                   GTK_ENTRY_ICON_PRIMARY,
+                                   "Search by name\n"
+                                   "Click here to change the search type");
+} 
+                
+static void
+search_by_description (GtkWidget *item, 
+                       GtkEntry  *entry)
+{
+  gtk_entry_set_icon_from_stock (entry,
+                                 GTK_ENTRY_ICON_PRIMARY,
+                                 GTK_STOCK_EDIT);
+  gtk_entry_set_icon_tooltip_text (entry,
+                                   GTK_ENTRY_ICON_PRIMARY,
+                                   "Search by description\n"
+                                   "Click here to change the search type");
+} 
+                
+static void
+search_by_file (GtkWidget *item, 
+                GtkEntry  *entry)
+{
+  gtk_entry_set_icon_from_stock (entry,
+                                 GTK_ENTRY_ICON_PRIMARY,
+                                 GTK_STOCK_OPEN);
+  gtk_entry_set_icon_tooltip_text (entry,
+                                   GTK_ENTRY_ICON_PRIMARY,
+                                   "Search by file name\n"
+                                   "Click here to change the search type");
+} 
+                
+GtkWidget *
+do_search_entry (GtkWidget *do_widget)
+{
+  GtkWidget *vbox;
+  GtkWidget *hbox;
+  GtkWidget *label;
+  GtkWidget *entry;
+  GtkWidget *item;
+  GtkWidget *image;
+  GtkWidget *find_button;
+  GtkWidget *cancel_button;
+  
+  if (!window)
+    {
+      window = gtk_dialog_new_with_buttons ("Search Entry",
+                                            GTK_WINDOW (do_widget),
+ 					    0,
+					    GTK_STOCK_CLOSE,
+					    GTK_RESPONSE_NONE,
+					    NULL);
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
+
+      g_signal_connect (window, "response",
+                        G_CALLBACK (gtk_widget_destroy), NULL);
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+      vbox = gtk_vbox_new (FALSE, 5);
+      gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), vbox, TRUE, TRUE, 0);
+      gtk_container_set_border_width (GTK_CONTAINER (vbox), 5);
+
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label), "Search entry demo");
+      gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
+
+      hbox = gtk_hbox_new (FALSE, 10);
+      gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
+      gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
+
+      /* Create our entry */
+      entry = gtk_entry_new ();
+      gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
+
+      /* Create the find and cancel buttons */
+      notebook = gtk_notebook_new ();
+      gtk_notebook_set_show_tabs (GTK_NOTEBOOK (notebook), FALSE);
+      gtk_notebook_set_show_border (GTK_NOTEBOOK (notebook), FALSE);
+      gtk_box_pack_start (GTK_BOX (hbox), notebook, FALSE, FALSE, 0);
+
+      find_button = gtk_button_new_with_label ("Find");
+      g_signal_connect (find_button, "clicked", 
+                        G_CALLBACK (start_search), entry);
+      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), find_button, NULL);
+      gtk_widget_show (find_button);
+
+      cancel_button = gtk_button_new_with_label ("Cancel");
+      g_signal_connect (cancel_button, "clicked", 
+                        G_CALLBACK (stop_search), NULL);
+      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), cancel_button, NULL);
+      gtk_widget_show (cancel_button);
+
+      /* Set up the search icon */
+      search_by_name (NULL, GTK_ENTRY (entry));
+      
+      /* Set up the clear icon */
+      gtk_entry_set_icon_from_stock (GTK_ENTRY (entry), 
+                                     GTK_ENTRY_ICON_SECONDARY, 
+                                     GTK_STOCK_CLEAR);
+      text_changed_cb (GTK_ENTRY (entry), NULL, find_button);
+
+      g_signal_connect (entry, "icon-pressed", 
+                        G_CALLBACK (icon_pressed_cb), NULL);
+      g_signal_connect (entry, "notify::text", 
+                        G_CALLBACK (text_changed_cb), find_button);
+      g_signal_connect (entry, "activate", 
+                        G_CALLBACK (activate_cb), NULL);
+
+      /* Create the menu */
+      menu = gtk_menu_new ();
+      gtk_menu_attach_to_widget (GTK_MENU (menu), entry, NULL);
+
+      item = gtk_image_menu_item_new_with_label ("Search by name");
+      image = gtk_image_new_from_stock (GTK_STOCK_FIND, GTK_ICON_SIZE_MENU);
+      gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
+      g_signal_connect (item, "activate", G_CALLBACK (search_by_name), entry);
+      gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+
+      item = gtk_image_menu_item_new_with_label ("Search by description");
+      image = gtk_image_new_from_stock (GTK_STOCK_EDIT, GTK_ICON_SIZE_MENU);
+      gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
+      g_signal_connect (item, "activate", G_CALLBACK (search_by_description), entry);
+      gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+
+      item = gtk_image_menu_item_new_with_label ("Search by file name");
+      image = gtk_image_new_from_stock (GTK_STOCK_OPEN, GTK_ICON_SIZE_MENU);
+      gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
+      g_signal_connect (item, "activate", G_CALLBACK (search_by_file), entry);
+      gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+
+      gtk_widget_show_all (menu);
+    }
+
+  if (!GTK_WIDGET_VISIBLE (window))
+    gtk_widget_show_all (window);
+  else
+    {
+      gtk_widget_destroy (menu);
+      gtk_widget_destroy (window);
+      window = NULL;
+    }
+
+  return window;
+}
+
+