diff options
Diffstat (limited to 'demos')
| -rw-r--r-- | demos/gtk-demo/combobox.c | 86 |
1 files changed, 84 insertions, 2 deletions
diff --git a/demos/gtk-demo/combobox.c b/demos/gtk-demo/combobox.c index 99d9681584..7b47032bfc 100644 --- a/demos/gtk-demo/combobox.c +++ b/demos/gtk-demo/combobox.c @@ -246,11 +246,87 @@ fill_combo_entry (GtkWidget *entry) gtk_combo_box_append_text (GTK_COMBO_BOX (entry), "Three"); } + +/* A simple validating entry */ + +#define TYPE_MASK_ENTRY (mask_entry_get_type ()) +#define MASK_ENTRY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_MASK_ENTRY, MaskEntry)) +#define MASK_ENTRY_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), TYPE_MASK_ENTRY, MaskEntryClass)) +#define IS_MASK_ENTRY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_MASK_ENTRY)) +#define IS_MASK_ENTRY_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), TYPE_MASK_ENTRY)) +#define MASK_ENTRY_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), TYPE_MASK_ENTRY, MaskEntryClass)) + + +typedef struct _MaskEntry MaskEntry; +struct _MaskEntry +{ + GtkEntry entry; + gchar *mask; +}; + +typedef struct _MaskEntryClass MaskEntryClass; +struct _MaskEntryClass +{ + GtkEntryClass parent_class; +}; + + +static void mask_entry_editable_init (GtkEditableClass *iface); + +G_DEFINE_TYPE_WITH_CODE (MaskEntry, mask_entry, GTK_TYPE_ENTRY, + G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, + mask_entry_editable_init)); + + +static void +mask_entry_set_background (MaskEntry *entry) +{ + static const GdkColor error_color = { 0, 65535, 60000, 60000 }; + + if (entry->mask) + { + if (!g_regex_match_simple (entry->mask, gtk_entry_get_text (GTK_ENTRY (entry)), 0, 0)) + { + gtk_widget_modify_base (GTK_WIDGET (entry), GTK_STATE_NORMAL, &error_color); + return; + } + } + + gtk_widget_modify_base (GTK_WIDGET (entry), GTK_STATE_NORMAL, NULL); +} + + +static void +mask_entry_changed (GtkEditable *editable) +{ + mask_entry_set_background (MASK_ENTRY (editable)); +} + + +static void +mask_entry_init (MaskEntry *entry) +{ + entry->mask = NULL; +} + + +static void +mask_entry_class_init (MaskEntryClass *klass) +{ } + + +static void +mask_entry_editable_init (GtkEditableClass *iface) +{ + iface->changed = mask_entry_changed; +} + + GtkWidget * do_combobox (GtkWidget *do_widget) { static GtkWidget *window = NULL; - GtkWidget *vbox, *frame, *box, *combo; + GtkWidget *vbox, *frame, *box, *combo, *entry; GtkTreeModel *model; GtkCellRenderer *renderer; GtkTreePath *path; @@ -343,7 +419,7 @@ do_combobox (GtkWidget *do_widget) gtk_tree_path_free (path); gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo), &iter); - /* A GtkComboBoxEntry + /* A GtkComboBoxEntry with validation. */ frame = gtk_frame_new ("Editable"); gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0); @@ -356,6 +432,12 @@ do_combobox (GtkWidget *do_widget) fill_combo_entry (combo); gtk_container_add (GTK_CONTAINER (box), combo); + entry = g_object_new (TYPE_MASK_ENTRY, NULL); + MASK_ENTRY (entry)->mask = "^([0-9]*|One|Two|2\302\275|Three)$"; + + gtk_container_remove (GTK_CONTAINER (combo), GTK_BIN (combo)->child); + gtk_container_add (GTK_CONTAINER (combo), entry); + } if (!GTK_WIDGET_VISIBLE (window)) |