git.maemo.org Git - modest/blob - src/widgets/modest-combo-box.c

   1 /* modest-combo-box.c */
   2
   3 /* insert (c)/licensing information) */
   4
   5 #include "modest-combo-box.h"
   6 /* include other impl specific header files */
   7
   8 /* 'private'/'protected' functions */
   9 static void modest_combo_box_class_init (ModestComboBoxClass *klass);
  10 static void modest_combo_box_init       (ModestComboBox *obj);
  11 static void modest_combo_box_finalize   (GObject *obj);
  12 /* list my signals  */
  13 enum {
  14         /* MY_SIGNAL_1, */
  15         /* MY_SIGNAL_2, */
  16         LAST_SIGNAL
  17 };
  18
  19 enum {
  20         COLUMN_ID,
  21         COLUMN_DISPLAY_NAME,
  22         COLUMN_NUM
  23 };
  24
  25
  26 typedef struct _ModestComboBoxPrivate ModestComboBoxPrivate;
  27 struct _ModestComboBoxPrivate {
  28         /* my private members go here, eg. */
  29         /* gboolean frobnicate_mode; */
  30 };
  31 #define MODEST_COMBO_BOX_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  32                                               MODEST_TYPE_COMBO_BOX, \
  33                                               ModestComboBoxPrivate))
  34 /* globals */
  35 static GtkComboBoxClass *parent_class = NULL;
  36
  37 /* uncomment the following if you have defined any signals */
  38 /* static guint signals[LAST_SIGNAL] = {0}; */
  39
  40 GType
  41 modest_combo_box_get_type (void)
  42 {
  43         static GType my_type = 0;
  44         if (!my_type) {
  45                 static const GTypeInfo my_info = {
  46                         sizeof(ModestComboBoxClass),
  47                         NULL,           /* base init */
  48                         NULL,           /* base finalize */
  49                         (GClassInitFunc) modest_combo_box_class_init,
  50                         NULL,           /* class finalize */
  51                         NULL,           /* class data */
  52                         sizeof(ModestComboBox),
  53                         1,              /* n_preallocs */
  54                         (GInstanceInitFunc) modest_combo_box_init,
  55                         NULL
  56                 };
  57                 my_type = g_type_register_static (GTK_TYPE_COMBO_BOX,
  58                                                   "ModestComboBox",
  59                                                   &my_info, 0);
  60         }
  61         return my_type;
  62 }
  63
  64 static void
  65 modest_combo_box_class_init (ModestComboBoxClass *klass)
  66 {
  67         GObjectClass *gobject_class;
  68         gobject_class = (GObjectClass*) klass;
  69
  70         parent_class            = g_type_class_peek_parent (klass);
  71         gobject_class->finalize = modest_combo_box_finalize;
  72
  73         g_type_class_add_private (gobject_class, sizeof(ModestComboBoxPrivate));
  74
  75         /* signal definitions go here, e.g.: */
  76 /*      signals[MY_SIGNAL_1] = */
  77 /*              g_signal_new ("my_signal_1",....); */
  78 /*      signals[MY_SIGNAL_2] = */
  79 /*              g_signal_new ("my_signal_2",....); */
  80 /*      etc. */
  81 }
  82
  83 static void
  84 modest_combo_box_init (ModestComboBox *obj)
  85 {
  86 /* uncomment the following if you init any of the private data */
  87 /*      ModestComboBoxPrivate *priv = MODEST_COMBO_BOX_GET_PRIVATE(obj); */
  88
  89 /*      initialize this object, eg.: */
  90 /*      priv->frobnicate_mode = FALSE; */
  91 }
  92
  93 static void
  94 modest_combo_box_finalize (GObject *obj)
  95 {
  96 /*      free/unref instance resources here */
  97         G_OBJECT_CLASS(parent_class)->finalize (obj);
  98 }
  99
 100
 101 static GtkTreeModel*
 102 get_model (ModestComboBoxLemma *lemmas)
 103 {
 104         GtkTreeIter iter;
 105         GtkListStore *store;
 106         ModestComboBoxLemma *lemma;
 107
 108         if (!lemmas)
 109                 return NULL; /* not an error */
 110
 111         store = gtk_list_store_new (2,
 112                                     G_TYPE_STRING,   /* the display name */
 113                                     G_TYPE_POINTER); /* the id */
 114
 115         for (lemma = lemmas; lemma; ++lemma)
 116                 gtk_list_store_insert_with_values (store, &iter, G_MAXINT,
 117                                                    /* FIXME: g_strdup?*/
 118                                                    COLUMN_DISPLAY_NAME, lemma->display_name,
 119                                                    COLUMN_ID,           lemma->id,
 120                                                    -1);
 121         return GTK_TREE_MODEL (store);
 122 }
 123
 124
 125 GtkWidget*
 126 modest_combo_box_new (ModestComboBoxLemma *lemmas)
 127 {
 128         GObject *obj;
 129         GtkTreeModel *model;
 130
 131         obj = g_object_new(MODEST_TYPE_COMBO_BOX, NULL);
 132
 133         model = get_model (lemmas);
 134
 135         gtk_combo_box_set_model (GTK_COMBO_BOX(obj), model);
 136         g_object_unref (model);
 137
 138         gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT(obj),
 139                                         gtk_cell_renderer_text_new(),
 140                                         "text", COLUMN_DISPLAY_NAME,
 141                                         NULL);
 142         return GTK_WIDGET(obj);
 143 }
 144
 145 gpointer
 146 modest_combo_box_get_active_id (ModestComboBox *self)
 147 {
 148         GtkTreeIter iter;
 149         gpointer retval;
 150
 151         g_return_val_if_fail (self, NULL);
 152
 153         if (!gtk_combo_box_get_active_iter (GTK_COMBO_BOX(self), &iter))
 154                 retval = NULL; /* nothing found */
 155         else {
 156                 GtkTreeModel *model;
 157                 GValue val;
 158
 159                 model = gtk_combo_box_get_model (GTK_COMBO_BOX(self));
 160
 161                 g_value_init (&val, G_TYPE_POINTER);
 162                 gtk_tree_model_get_value (model, &iter, COLUMN_ID, &val);
 163
 164                 retval = g_value_get_pointer (&val);
 165                 g_value_unset (&val);
 166         }
 167         return retval;
 168 }