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

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30
  31 #include "modest-combo-box.h"
  32
  33 /* 'private'/'protected' functions */
  34 static void modest_combo_box_class_init (ModestComboBoxClass *klass);
  35 static void modest_combo_box_init       (ModestComboBox *obj);
  36 static void modest_combo_box_finalize   (GObject *obj);
  37 /* list my signals  */
  38 enum {
  39         /* MY_SIGNAL_1, */
  40         /* MY_SIGNAL_2, */
  41         LAST_SIGNAL
  42 };
  43
  44
  45 enum {
  46         COLUMN_ID,
  47         COLUMN_DISPLAY_NAME,
  48         COLUMN_NUM
  49 };
  50
  51 typedef struct _ModestComboBoxPrivate ModestComboBoxPrivate;
  52 struct _ModestComboBoxPrivate {
  53         /* my private members go here, eg. */
  54         /* gboolean frobnicate_mode; */
  55 };
  56 #define MODEST_COMBO_BOX_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  57                                               MODEST_TYPE_COMBO_BOX, \
  58                                               ModestComboBoxPrivate))
  59 /* globals */
  60 static GObjectClass *parent_class = NULL;
  61
  62 /* uncomment the following if you have defined any signals */
  63 /* static guint signals[LAST_SIGNAL] = {0}; */
  64
  65 GType
  66 modest_combo_box_get_type (void)
  67 {
  68         static GType my_type = 0;
  69         if (!my_type) {
  70                 static const GTypeInfo my_info = {
  71                         sizeof(ModestComboBoxClass),
  72                         NULL,           /* base init */
  73                         NULL,           /* base finalize */
  74                         (GClassInitFunc) modest_combo_box_class_init,
  75                         NULL,           /* class finalize */
  76                         NULL,           /* class data */
  77                         sizeof(ModestComboBox),
  78                         1,              /* n_preallocs */
  79                         (GInstanceInitFunc) modest_combo_box_init,
  80                         NULL
  81                 };
  82                 my_type = g_type_register_static (G_TYPE_OBJECT,
  83                                                   "ModestComboBox",
  84                                                   &my_info, 0);
  85         }
  86         return my_type;
  87 }
  88
  89 static void
  90 modest_combo_box_class_init (ModestComboBoxClass *klass)
  91 {
  92         GObjectClass *gobject_class;
  93         gobject_class = (GObjectClass*) klass;
  94
  95         parent_class            = g_type_class_peek_parent (klass);
  96         gobject_class->finalize = modest_combo_box_finalize;
  97
  98         g_type_class_add_private (gobject_class, sizeof(ModestComboBoxPrivate));
  99
 100         /* signal definitions go here, e.g.: */
 101 /*      signals[MY_SIGNAL_1] = */
 102 /*              g_signal_new ("my_signal_1",....); */
 103 /*      signals[MY_SIGNAL_2] = */
 104 /*              g_signal_new ("my_signal_2",....); */
 105 /*      etc. */
 106 }
 107
 108 static void
 109 modest_combo_box_init (ModestComboBox *obj)
 110 {
 111 /* uncomment the following if you init any of the private data */
 112 /*      ModestComboBoxPrivate *priv = MODEST_COMBO_BOX_GET_PRIVATE(obj); */
 113
 114 /*      initialize this object, eg.: */
 115 /*      priv->frobnicate_mode = FALSE; */
 116 }
 117
 118 static void
 119 modest_combo_box_finalize (GObject *obj)
 120 {
 121 /*      free/unref instance resources here */
 122         G_OBJECT_CLASS(parent_class)->finalize (obj);
 123 }
 124
 125 static GtkTreeModel*
 126 get_model (const GSList *pairs)
 127 {
 128         GtkTreeIter iter;
 129         GtkListStore *store;
 130         const GSList *cursor;
 131
 132         store = gtk_list_store_new (2,
 133                                     G_TYPE_POINTER, /* the id */
 134                                     G_TYPE_STRING); /* the display name */
 135         cursor = pairs;
 136         while (cursor) {
 137                 ModestPair *pair = (ModestPair*)cursor->data;
 138                 gtk_list_store_insert_with_values (store, &iter, G_MAXINT,
 139                                                    COLUMN_ID,           pair->first,
 140                                                    COLUMN_DISPLAY_NAME, pair->second,
 141                                                    -1);
 142                 cursor = cursor->next;
 143         }
 144
 145         return GTK_TREE_MODEL (store);
 146 }
 147
 148
 149 GtkWidget*
 150 modest_combo_box_new (const GSList *pairs)
 151 {
 152         GtkTreeModel *model;
 153         GtkCellRenderer *renderer;
 154         GObject *obj;
 155
 156         obj  = G_OBJECT(g_object_new(MODEST_TYPE_COMBO_BOX, NULL));
 157
 158         model = get_model (pairs);
 159
 160         if (model) {
 161                 gtk_combo_box_set_model (GTK_COMBO_BOX(obj), model);
 162                 g_object_unref (model);
 163                 gtk_cell_layout_clear (GTK_CELL_LAYOUT(obj));
 164
 165                 renderer = gtk_cell_renderer_text_new ();
 166                 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT(obj),
 167                                             renderer, FALSE);
 168                 gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT(obj),
 169                                                 renderer, "text",
 170                                                 COLUMN_DISPLAY_NAME, NULL);
 171         }
 172
 173         return GTK_WIDGET(obj);
 174 }
 175
 176
 177
 178 gpointer
 179 modest_combo_box_get_active_id (ModestComboBox *self)
 180 {
 181         GtkTreeIter iter;
 182         gpointer retval;
 183
 184         g_return_val_if_fail (self, NULL);
 185
 186         if (!gtk_combo_box_get_active_iter (GTK_COMBO_BOX(self), &iter))
 187                 retval = NULL; /* nothing found */
 188         else {
 189                 GtkTreeModel *model;
 190                 GValue val;
 191
 192                 model = gtk_combo_box_get_model (GTK_COMBO_BOX(self));
 193
 194                 g_value_init (&val, G_TYPE_POINTER);
 195                 gtk_tree_model_get_value (model, &iter, COLUMN_ID, &val);
 196
 197                 retval = g_value_get_pointer (&val);
 198                 g_value_unset (&val);
 199         }
 200         return retval;
 201 }