forked from AuroraMiddleware/gtk
339 lines
10 KiB
C
339 lines
10 KiB
C
/* Entry/Search Entry
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*
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* GtkEntry allows to display icons and progress information.
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* This demo shows how to use these features in a search entry.
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*/
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#include <gtk/gtk.h>
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static GtkWidget *window = NULL;
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static GtkWidget *menu = NULL;
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static GtkWidget *notebook = NULL;
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static guint search_progress_id = 0;
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static guint finish_search_id = 0;
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static void
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show_find_button (void)
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{
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gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), 0);
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}
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static void
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show_cancel_button (void)
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{
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gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), 1);
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}
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static gboolean
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search_progress (gpointer data)
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{
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gtk_entry_progress_pulse (GTK_ENTRY (data));
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return TRUE;
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}
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static void
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search_progress_done (GtkEntry *entry)
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{
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gtk_entry_set_progress_fraction (entry, 0.0);
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}
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static gboolean
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finish_search (GtkButton *button)
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{
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show_find_button ();
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g_source_remove (search_progress_id);
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search_progress_id = 0;
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return FALSE;
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}
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static gboolean
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start_search_feedback (gpointer data)
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{
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search_progress_id = g_timeout_add_full (G_PRIORITY_DEFAULT, 100,
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(GSourceFunc)search_progress, data,
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(GDestroyNotify)search_progress_done);
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return FALSE;
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}
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static void
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start_search (GtkButton *button,
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GtkEntry *entry)
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{
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show_cancel_button ();
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search_progress_id = g_timeout_add_seconds (1, (GSourceFunc)start_search_feedback, entry);
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finish_search_id = g_timeout_add_seconds (15, (GSourceFunc)finish_search, button);
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}
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static void
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stop_search (GtkButton *button,
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gpointer data)
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{
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g_source_remove (finish_search_id);
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finish_search (button);
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}
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static void
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clear_entry (GtkEntry *entry)
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{
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gtk_entry_set_text (entry, "");
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}
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static void
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search_by_name (GtkWidget *item,
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GtkEntry *entry)
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{
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gtk_entry_set_icon_from_stock (entry,
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GTK_ENTRY_ICON_PRIMARY,
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GTK_STOCK_FIND);
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gtk_entry_set_icon_tooltip_text (entry,
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GTK_ENTRY_ICON_PRIMARY,
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"Search by name\n"
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"Click here to change the search type");
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}
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static void
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search_by_description (GtkWidget *item,
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GtkEntry *entry)
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{
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gtk_entry_set_icon_from_stock (entry,
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GTK_ENTRY_ICON_PRIMARY,
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GTK_STOCK_EDIT);
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gtk_entry_set_icon_tooltip_text (entry,
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GTK_ENTRY_ICON_PRIMARY,
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"Search by description\n"
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"Click here to change the search type");
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}
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static void
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search_by_file (GtkWidget *item,
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GtkEntry *entry)
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{
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gtk_entry_set_icon_from_stock (entry,
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GTK_ENTRY_ICON_PRIMARY,
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GTK_STOCK_OPEN);
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gtk_entry_set_icon_tooltip_text (entry,
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GTK_ENTRY_ICON_PRIMARY,
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"Search by file name\n"
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"Click here to change the search type");
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}
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GtkWidget *
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create_search_menu (GtkWidget *entry)
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{
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GtkWidget *menu;
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GtkWidget *item;
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GtkWidget *image;
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menu = gtk_menu_new ();
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item = gtk_image_menu_item_new_with_mnemonic ("Search by _name");
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image = gtk_image_new_from_stock (GTK_STOCK_FIND, GTK_ICON_SIZE_MENU);
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gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
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gtk_image_menu_item_set_always_show_image (GTK_IMAGE_MENU_ITEM (item), TRUE);
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g_signal_connect (item, "activate",
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G_CALLBACK (search_by_name), entry);
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
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item = gtk_image_menu_item_new_with_mnemonic ("Search by _description");
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image = gtk_image_new_from_stock (GTK_STOCK_EDIT, GTK_ICON_SIZE_MENU);
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gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
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gtk_image_menu_item_set_always_show_image (GTK_IMAGE_MENU_ITEM (item), TRUE);
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g_signal_connect (item, "activate",
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G_CALLBACK (search_by_description), entry);
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
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item = gtk_image_menu_item_new_with_mnemonic ("Search by _file name");
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image = gtk_image_new_from_stock (GTK_STOCK_OPEN, GTK_ICON_SIZE_MENU);
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gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
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gtk_image_menu_item_set_always_show_image (GTK_IMAGE_MENU_ITEM (item), TRUE);
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g_signal_connect (item, "activate",
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G_CALLBACK (search_by_file), entry);
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
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gtk_widget_show_all (menu);
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return menu;
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}
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static void
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icon_press_cb (GtkEntry *entry,
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gint position,
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GdkEventButton *event,
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gpointer data)
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{
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if (position == GTK_ENTRY_ICON_PRIMARY)
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gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
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event->button, event->time);
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else
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clear_entry (entry);
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}
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static void
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text_changed_cb (GtkEntry *entry,
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GParamSpec *pspec,
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GtkWidget *button)
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{
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gboolean has_text;
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has_text = gtk_entry_get_text_length (entry) > 0;
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gtk_entry_set_icon_sensitive (entry,
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GTK_ENTRY_ICON_SECONDARY,
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has_text);
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gtk_widget_set_sensitive (button, has_text);
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}
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static void
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activate_cb (GtkEntry *entry,
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GtkButton *button)
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{
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if (search_progress_id != 0)
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return;
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start_search (button, entry);
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}
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static void
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search_entry_destroyed (GtkWidget *widget)
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{
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if (finish_search_id != 0)
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g_source_remove (finish_search_id);
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if (search_progress_id != 0)
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g_source_remove (search_progress_id);
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window = NULL;
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}
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static void
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entry_populate_popup (GtkEntry *entry,
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GtkMenu *menu,
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gpointer user_data)
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{
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GtkWidget *item;
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GtkWidget *search_menu;
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gboolean has_text;
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has_text = gtk_entry_get_text_length (entry) > 0;
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item = gtk_separator_menu_item_new ();
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gtk_widget_show (item);
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
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item = gtk_menu_item_new_with_mnemonic ("C_lear");
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gtk_widget_show (item);
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g_signal_connect_swapped (item, "activate",
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G_CALLBACK (clear_entry), entry);
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
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gtk_widget_set_sensitive (item, has_text);
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search_menu = create_search_menu (GTK_WIDGET (entry));
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item = gtk_menu_item_new_with_label ("Search by");
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gtk_widget_show (item);
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gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), search_menu);
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
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}
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GtkWidget *
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do_search_entry (GtkWidget *do_widget)
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{
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GtkWidget *content_area;
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GtkWidget *vbox;
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GtkWidget *hbox;
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GtkWidget *label;
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GtkWidget *entry;
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GtkWidget *find_button;
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GtkWidget *cancel_button;
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if (!window)
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{
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window = gtk_dialog_new_with_buttons ("Search Entry",
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GTK_WINDOW (do_widget),
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0,
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GTK_STOCK_CLOSE,
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GTK_RESPONSE_NONE,
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NULL);
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gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
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g_signal_connect (window, "response",
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G_CALLBACK (gtk_widget_destroy), NULL);
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g_signal_connect (window, "destroy",
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G_CALLBACK (search_entry_destroyed), &window);
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content_area = gtk_dialog_get_content_area (GTK_DIALOG (window));
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
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gtk_box_pack_start (GTK_BOX (content_area), vbox, TRUE, TRUE, 0);
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gtk_container_set_border_width (GTK_CONTAINER (vbox), 5);
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label = gtk_label_new (NULL);
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gtk_label_set_markup (GTK_LABEL (label), "Search entry demo");
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gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
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gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
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/* Create our entry */
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entry = gtk_entry_new ();
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gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
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/* Create the find and cancel buttons */
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notebook = gtk_notebook_new ();
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gtk_notebook_set_show_tabs (GTK_NOTEBOOK (notebook), FALSE);
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gtk_notebook_set_show_border (GTK_NOTEBOOK (notebook), FALSE);
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gtk_box_pack_start (GTK_BOX (hbox), notebook, FALSE, FALSE, 0);
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find_button = gtk_button_new_with_label ("Find");
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g_signal_connect (find_button, "clicked",
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G_CALLBACK (start_search), entry);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook), find_button, NULL);
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gtk_widget_show (find_button);
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cancel_button = gtk_button_new_with_label ("Cancel");
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g_signal_connect (cancel_button, "clicked",
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G_CALLBACK (stop_search), NULL);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook), cancel_button, NULL);
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gtk_widget_show (cancel_button);
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/* Set up the search icon */
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search_by_name (NULL, GTK_ENTRY (entry));
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/* Set up the clear icon */
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gtk_entry_set_icon_from_stock (GTK_ENTRY (entry),
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GTK_ENTRY_ICON_SECONDARY,
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GTK_STOCK_CLEAR);
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text_changed_cb (GTK_ENTRY (entry), NULL, find_button);
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g_signal_connect (entry, "icon-press",
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G_CALLBACK (icon_press_cb), NULL);
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g_signal_connect (entry, "notify::text",
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G_CALLBACK (text_changed_cb), find_button);
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g_signal_connect (entry, "activate",
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G_CALLBACK (activate_cb), NULL);
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/* Create the menu */
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menu = create_search_menu (entry);
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gtk_menu_attach_to_widget (GTK_MENU (menu), entry, NULL);
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/* add accessible alternatives for icon functionality */
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g_signal_connect (entry, "populate-popup",
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G_CALLBACK (entry_populate_popup), NULL);
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_show_all (window);
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else
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{
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gtk_widget_destroy (menu);
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gtk_widget_destroy (window);
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window = NULL;
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}
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return window;
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}
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