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 #include <gtk/gtkcelllayout.h>
  31 #include <gtk/gtkcellrenderertext.h>
  32 #include "modest-combo-box.h"
  33
  34 /* 'private'/'protected' functions */
  35 static void modest_combo_box_class_init (ModestComboBoxClass *klass);
  36 static void modest_combo_box_init       (ModestComboBox *obj);
  37 static void modest_combo_box_finalize   (GObject *obj);
  38 /* list my signals  */
  39 enum {
  40         /* MY_SIGNAL_1, */
  41         /* MY_SIGNAL_2, */
  42         LAST_SIGNAL
  43 };
  44
  45
  46 enum {
  47         COLUMN_ID,
  48         COLUMN_DISPLAY_NAME,
  49         COLUMN_NUM
  50 };
  51
  52 typedef struct _ModestComboBoxPrivate ModestComboBoxPrivate;
  53 struct _ModestComboBoxPrivate {
  54         /* my private members go here, eg. */
  55         /* gboolean frobnicate_mode; */
  56 };
  57 #define MODEST_COMBO_BOX_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  58                                               MODEST_TYPE_COMBO_BOX, \
  59                                               ModestComboBoxPrivate))
  60 /* globals */
  61 static GObjectClass *parent_class = NULL;
  62
  63 /* uncomment the following if you have defined any signals */
  64 /* static guint signals[LAST_SIGNAL] = {0}; */
  65
  66 GType
  67 modest_combo_box_get_type (void)
  68 {
  69         static GType my_type = 0;
  70         if (!my_type) {
  71                 static const GTypeInfo my_info = {
  72                         sizeof(ModestComboBoxClass),
  73                         NULL,           /* base init */
  74                         NULL,           /* base finalize */
  75                         (GClassInitFunc) modest_combo_box_class_init,
  76                         NULL,           /* class finalize */
  77                         NULL,           /* class data */
  78                         sizeof(ModestComboBox),
  79                         1,              /* n_preallocs */
  80                         (GInstanceInitFunc) modest_combo_box_init,
  81                         NULL
  82                 };
  83                 my_type = g_type_register_static (GTK_TYPE_COMBO_BOX,
  84                                                   "ModestComboBox",
  85                                                   &my_info, 0);
  86         }
  87         return my_type;
  88 }
  89
  90 static void
  91 modest_combo_box_class_init (ModestComboBoxClass *klass)
  92 {
  93         GObjectClass *gobject_class;
  94         gobject_class = (GObjectClass*) klass;
  95
  96         parent_class            = g_type_class_peek_parent (klass);
  97         gobject_class->finalize = modest_combo_box_finalize;
  98
  99         g_type_class_add_private (gobject_class, sizeof(ModestComboBoxPrivate));
 100
 101         /* signal definitions go here, e.g.: */
 102 /*      signals[MY_SIGNAL_1] = */
 103 /*              g_signal_new ("my_signal_1",....); */
 104 /*      signals[MY_SIGNAL_2] = */
 105 /*              g_signal_new ("my_signal_2",....); */
 106 /*      etc. */
 107 }
 108
 109 static void
 110 modest_combo_box_init (ModestComboBox *obj)
 111 {
 112 /* uncomment the following if you init any of the private data */
 113 /*      ModestComboBoxPrivate *priv = MODEST_COMBO_BOX_GET_PRIVATE(obj); */
 114
 115 /*      initialize this object, eg.: */
 116 /*      priv->frobnicate_mode = FALSE; */
 117 }
 118
 119 static void
 120 modest_combo_box_finalize (GObject *obj)
 121 {
 122 /*      free/unref instance resources here */
 123         G_OBJECT_CLASS(parent_class)->finalize (obj);
 124 }
 125
 126 static GtkTreeModel*
 127 get_model (const GSList *pairs)
 128 {
 129         GtkTreeIter iter;
 130         GtkListStore *store;
 131         const GSList *cursor;
 132
 133         store = gtk_list_store_new (2,
 134                                     G_TYPE_POINTER, /* the id */
 135                                     G_TYPE_STRING); /* the display name */
 136         cursor = pairs;
 137         while (cursor) {
 138                 ModestPair *pair = (ModestPair*)cursor->data;
 139                 gtk_list_store_insert_with_values (store, &iter, G_MAXINT,
 140                                                    COLUMN_ID,           pair->first,
 141                                                    COLUMN_DISPLAY_NAME, pair->second,
 142                                                    -1);
 143                 cursor = cursor->next;
 144         }
 145
 146         return GTK_TREE_MODEL (store);
 147 }
 148
 149
 150 GtkWidget*
 151 modest_combo_box_new (const GSList *pairs)
 152 {
 153         GtkTreeModel *model;
 154         GtkCellRenderer *renderer;
 155         GObject *obj;
 156
 157         obj  = G_OBJECT(g_object_new(MODEST_TYPE_COMBO_BOX, NULL));
 158
 159         model = get_model (pairs);
 160
 161         if (model) {
 162                 gtk_combo_box_set_model (GTK_COMBO_BOX(obj), model);
 163                 g_object_unref (model);
 164                 gtk_cell_layout_clear (GTK_CELL_LAYOUT(obj));
 165
 166                 renderer = gtk_cell_renderer_text_new ();
 167                 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT(obj),
 168                                             renderer, FALSE);
 169                 gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT(obj),
 170                                                 renderer, "text",
 171                                                 COLUMN_DISPLAY_NAME, NULL);
 172         }
 173
 174         return GTK_WIDGET(obj);
 175 }
 176
 177
 178
 179 static void
 180 get_active (ModestComboBox *self, GValue *val, gint column)
 181 {
 182         GtkTreeIter iter;
 183
 184         g_return_if_fail (self);
 185
 186         if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX(self), &iter)) {
 187                 GtkTreeModel *model;
 188
 189                 model = gtk_combo_box_get_model (GTK_COMBO_BOX(self));
 190                 gtk_tree_model_get_value (model, &iter, column, val);
 191         }
 192 }
 193
 194 gpointer
 195 modest_combo_box_get_active_id (ModestComboBox *self)
 196 {
 197         g_return_val_if_fail (self, NULL);
 198         GValue val = {0,};
 199         gpointer retval;
 200
 201         /* Do not unset the GValue */
 202         get_active (self, &val, COLUMN_ID);
 203         retval = g_value_peek_pointer (&val);
 204
 205         return retval;
 206 }
 207
 208 gpointer
 209 modest_combo_box_get_active_display_name (ModestComboBox *self)
 210 {
 211         g_return_val_if_fail (self, NULL);
 212         GValue val = {0,};
 213         gpointer retval;
 214
 215         /* Do not unset the GValue */
 216         get_active (self, &val, COLUMN_DISPLAY_NAME);
 217         retval = g_value_peek_pointer (&val);
 218
 219         return retval;
 220 }