gtk/demos/gtk-demo/search_entry2.c
Matthias Clasen 609e04ddcf gtk-demo: Cosmetic changes
Clean up the code of many examples in minor ways, fix some memory
leaks, and avoid the use of dialogs where a regular toplevel works
just as well.
2015-06-28 17:41:35 -04:00

164 lines
5.2 KiB
C

/* Entry/Delayed Search Entry
*
* GtkSearchEntry sets up GtkEntries ready for search. Search entries
* have their "changed" signal delayed and should be used
* when the searched operation is slow such as loads of entries
* to search, or online searches.
*/
#include <gtk/gtk.h>
static void
search_changed_cb (GtkSearchEntry *entry,
GtkLabel *result_label)
{
const char *text;
text = gtk_entry_get_text (GTK_ENTRY (entry));
g_message ("search changed: %s", text);
gtk_label_set_text (result_label, text ? text : "");
}
static void
changed_cb (GtkEditable *editable)
{
const char *text;
text = gtk_entry_get_text (GTK_ENTRY (editable));
g_message ("changed: %s", text);
}
static gboolean
window_key_press_event_cb (GtkWidget *widget,
GdkEvent *event,
GtkSearchBar *bar)
{
return gtk_search_bar_handle_event (bar, event);
}
static void
search_changed (GtkSearchEntry *entry,
GtkLabel *label)
{
gtk_label_set_text (label, "search-changed");
}
static void
next_match (GtkSearchEntry *entry,
GtkLabel *label)
{
gtk_label_set_text (label, "next-match");
}
static void
previous_match (GtkSearchEntry *entry,
GtkLabel *label)
{
gtk_label_set_text (label, "previous-match");
}
static void
stop_search (GtkSearchEntry *entry,
GtkLabel *label)
{
gtk_label_set_text (label, "stop-search");
}
GtkWidget *
do_search_entry2 (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *entry;
GtkWidget *container;
GtkWidget *searchbar;
GtkWidget *button;
if (!window)
{
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "Delayed Search Entry");
gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (do_widget));
gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
gtk_widget_set_size_request (window, 200, -1);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 0);
entry = gtk_search_entry_new ();
container = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
gtk_widget_set_halign (container, GTK_ALIGN_CENTER);
gtk_box_pack_start (GTK_BOX (container), entry, FALSE, FALSE, 0);
searchbar = gtk_search_bar_new ();
gtk_search_bar_connect_entry (GTK_SEARCH_BAR (searchbar), GTK_ENTRY (entry));
gtk_search_bar_set_show_close_button (GTK_SEARCH_BAR (searchbar), FALSE);
gtk_container_add (GTK_CONTAINER (searchbar), container);
gtk_box_pack_start (GTK_BOX (vbox), searchbar, FALSE, FALSE, 0);
/* Hook the search bar to key presses */
g_signal_connect (window, "key-press-event",
G_CALLBACK (window_key_press_event_cb), searchbar);
/* Help */
label = gtk_label_new ("Start Typing to search");
gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
/* Toggle button */
button = gtk_toggle_button_new_with_label ("Search");
g_object_bind_property (button, "active",
searchbar, "search-mode-enabled",
G_BINDING_BIDIRECTIONAL);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
/* Result */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
label = gtk_label_new ("Result:");
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_widget_set_margin_start (label, 6);
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
label = gtk_label_new ("");
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
g_signal_connect (entry, "search-changed",
G_CALLBACK (search_changed_cb), label);
g_signal_connect (entry, "changed",
G_CALLBACK (changed_cb), label);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
label = gtk_label_new ("Signal:");
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_widget_set_margin_start (label, 6);
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
label = gtk_label_new ("");
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
g_signal_connect (entry, "search-changed",
G_CALLBACK (search_changed), label);
g_signal_connect (entry, "next-match",
G_CALLBACK (next_match), label);
g_signal_connect (entry, "previous-match",
G_CALLBACK (previous_match), label);
g_signal_connect (entry, "stop-search",
G_CALLBACK (stop_search), label);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show_all (window);
else
gtk_widget_destroy (window);
return window;
}