git.maemo.org Git - modest/blob - src/hildon2/modest-selector-picker.c

   1 /* Copyright (c) 2006, 2008 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 <gtk/gtkliststore.h>
  33 #include "modest-selector-picker.h"
  34
  35 #define TOUCH_SELECTOR_PICKER "calling-picker"
  36
  37 /* 'private'/'protected' functions */
  38 static void modest_selector_picker_class_init (ModestSelectorPickerClass *klass);
  39 static void modest_selector_picker_init       (ModestSelectorPicker *obj);
  40 static void modest_selector_picker_finalize   (GObject *obj);
  41
  42 enum {
  43         COLUMN_ID,
  44         COLUMN_DISPLAY_NAME,
  45         COLUMN_NUM
  46 };
  47
  48 typedef struct _ModestSelectorPickerPrivate ModestSelectorPickerPrivate;
  49 struct _ModestSelectorPickerPrivate {
  50         GEqualFunc id_equal_func;
  51
  52         gint value_max_chars;
  53         gboolean center_aligned;
  54 };
  55 #define MODEST_SELECTOR_PICKER_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  56                                                                                 MODEST_TYPE_SELECTOR_PICKER, \
  57                                                                                 ModestSelectorPickerPrivate))
  58 /* globals */
  59 static GObjectClass *parent_class = NULL;
  60
  61 GType
  62 modest_selector_picker_get_type (void)
  63 {
  64         static GType my_type = 0;
  65         if (!my_type) {
  66                 static const GTypeInfo my_info = {
  67                         sizeof(ModestSelectorPickerClass),
  68                         NULL,           /* base init */
  69                         NULL,           /* base finalize */
  70                         (GClassInitFunc) modest_selector_picker_class_init,
  71                         NULL,           /* class finalize */
  72                         NULL,           /* class data */
  73                         sizeof(ModestSelectorPicker),
  74                         1,              /* n_preallocs */
  75                         (GInstanceInitFunc) modest_selector_picker_init,
  76                         NULL
  77                 };
  78                 my_type = g_type_register_static (HILDON_TYPE_PICKER_BUTTON,
  79                                                   "ModestSelectorPicker",
  80                                                   &my_info, 0);
  81         }
  82         return my_type;
  83 }
  84
  85 static void
  86 modest_selector_picker_class_init (ModestSelectorPickerClass *klass)
  87 {
  88         GObjectClass *gobject_class;
  89         gobject_class = (GObjectClass*) klass;
  90
  91         parent_class            = g_type_class_peek_parent (klass);
  92         gobject_class->finalize = modest_selector_picker_finalize;
  93
  94         g_type_class_add_private (gobject_class, sizeof(ModestSelectorPickerPrivate));
  95
  96 }
  97
  98 static void
  99 modest_selector_picker_init (ModestSelectorPicker *obj)
 100 {
 101 }
 102
 103 static void
 104 modest_selector_picker_finalize (GObject *obj)
 105 {
 106 /*      free/unref instance resources here */
 107         G_OBJECT_CLASS(parent_class)->finalize (obj);
 108 }
 109
 110 static gchar *
 111 touch_selector_print_func (HildonTouchSelector *selector, gpointer userdata)
 112 {
 113         GtkTreeIter iter;
 114         ModestSelectorPicker *picker;
 115
 116         picker = MODEST_SELECTOR_PICKER (g_object_get_data (G_OBJECT (selector), TOUCH_SELECTOR_PICKER));
 117         g_return_val_if_fail (MODEST_IS_SELECTOR_PICKER (picker), NULL);
 118         if (hildon_touch_selector_get_selected (HILDON_TOUCH_SELECTOR (selector), 0, &iter)) {
 119                 GtkTreeModel *model;
 120                 ModestSelectorPickerPrivate *priv;
 121                 GValue value = {0,};
 122
 123                 priv = MODEST_SELECTOR_PICKER_GET_PRIVATE (picker);
 124                 model = hildon_touch_selector_get_model (HILDON_TOUCH_SELECTOR (selector), 0);
 125                 gtk_tree_model_get_value (model, &iter, COLUMN_DISPLAY_NAME, &value);
 126                 if (priv->value_max_chars == -1) {
 127                         return g_value_dup_string (&value);
 128                 } else {
 129                         const gchar *str;
 130                         str = g_value_get_string (&value);
 131                         if (g_utf8_strlen (str, -1) > priv->value_max_chars) {
 132                                 const gchar *end;
 133                                 end = g_utf8_offset_to_pointer (str, priv->value_max_chars);
 134                                 return g_strndup (str, end - str);
 135                         } else {
 136                                 return g_strdup (str);
 137                         }
 138                 }
 139         }
 140         return NULL;
 141 }
 142
 143 static GtkTreeModel*
 144 get_model (ModestPairList *pairs)
 145 {
 146         GtkTreeIter iter;
 147         GtkListStore *store;
 148         GSList *cursor;
 149
 150         store = gtk_list_store_new (2,
 151                                     G_TYPE_POINTER, /* the id */
 152                                     G_TYPE_STRING); /* the display name */
 153         cursor = pairs;
 154         while (cursor) {
 155                 ModestPair *pair = (ModestPair*)cursor->data;
 156                 gtk_list_store_insert_with_values (store, &iter, G_MAXINT,
 157                                                    COLUMN_ID,           pair->first,
 158                                                    COLUMN_DISPLAY_NAME, pair->second,
 159                                                    -1);
 160                 cursor = cursor->next;
 161         }
 162
 163         return GTK_TREE_MODEL (store);
 164 }
 165
 166 static GtkWidget *
 167 create_touch_selector (ModestSelectorPicker *self, GtkTreeModel *model)
 168 {
 169         GtkCellRenderer *renderer;
 170         GtkWidget *selector;
 171         ModestSelectorPickerPrivate *priv;
 172
 173         renderer = gtk_cell_renderer_text_new ();
 174         g_object_set (G_OBJECT (renderer), "ellipsize", PANGO_ELLIPSIZE_END, NULL);
 175
 176         priv = MODEST_SELECTOR_PICKER_GET_PRIVATE(self);
 177         if (priv->center_aligned) {
 178                 g_object_set (G_OBJECT (renderer), "alignment", PANGO_ALIGN_CENTER, NULL);
 179         }
 180
 181         selector = hildon_touch_selector_new ();
 182         hildon_touch_selector_append_column (HILDON_TOUCH_SELECTOR (selector), GTK_TREE_MODEL (model),
 183                                              renderer, "text", COLUMN_DISPLAY_NAME, NULL);
 184
 185         hildon_touch_selector_set_model (HILDON_TOUCH_SELECTOR(selector), 0, model);
 186         g_object_set_data (G_OBJECT (selector), TOUCH_SELECTOR_PICKER, (gpointer) self);
 187         hildon_touch_selector_set_print_func (HILDON_TOUCH_SELECTOR (selector), (HildonTouchSelectorPrintFunc) touch_selector_print_func);
 188
 189         return selector;
 190 }
 191
 192 void
 193 modest_selector_picker_set_pair_list (ModestSelectorPicker *self, ModestPairList *pairs)
 194 {
 195         GtkTreeModel *model;
 196         GtkTreeIter iter;
 197         GtkWidget *selector;
 198
 199         model = get_model (pairs);
 200
 201         selector = create_touch_selector (self, model);
 202         if (gtk_tree_model_get_iter_first (GTK_TREE_MODEL(model), &iter))
 203                 hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector), 0, &iter, TRUE);
 204         g_object_unref (model);
 205
 206         hildon_picker_button_set_selector (HILDON_PICKER_BUTTON (self), HILDON_TOUCH_SELECTOR (selector));
 207 }
 208
 209
 210
 211 GtkWidget*
 212 modest_selector_picker_new (HildonSizeType size,
 213                             HildonButtonArrangement arrangement,
 214                             ModestPairList *pairs, GEqualFunc id_equal_func,
 215                             gboolean center_aligned)
 216 {
 217         GtkTreeModel *model;
 218         GObject *obj;
 219         ModestSelectorPickerPrivate *priv;
 220         GtkTreeIter iter;
 221
 222         obj  = G_OBJECT(g_object_new(MODEST_TYPE_SELECTOR_PICKER,
 223                                      "size", size,
 224                                      "arrangement", arrangement,
 225                                      NULL));
 226
 227         priv = MODEST_SELECTOR_PICKER_GET_PRIVATE(obj);
 228         priv->value_max_chars = -1;
 229         priv->center_aligned = center_aligned;
 230
 231         model = get_model (pairs);
 232         if (model) {
 233                 GtkWidget *selector;
 234
 235                 selector = create_touch_selector (MODEST_SELECTOR_PICKER (obj), model);
 236                 if (gtk_tree_model_get_iter_first (GTK_TREE_MODEL (model), &iter)) {
 237                         hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector), 0, &iter, TRUE);
 238                 }
 239                 g_object_unref (model);
 240
 241                 hildon_picker_button_set_selector (HILDON_PICKER_BUTTON (obj), HILDON_TOUCH_SELECTOR (selector));
 242         }
 243
 244         if (id_equal_func)
 245                 priv->id_equal_func = id_equal_func;
 246         else
 247                 priv->id_equal_func = g_direct_equal; /* compare the ptr values */
 248
 249         /* For theming purpouses. Widget name must end in Button-finger */
 250         gtk_widget_set_name ((GtkWidget *) obj, "ModestSelectorPickerButton-finger");
 251
 252         return GTK_WIDGET(obj);
 253 }
 254
 255
 256
 257 static void
 258 get_active (ModestSelectorPicker *self, GValue *val, gint column)
 259 {
 260         GtkTreeIter iter;
 261         GtkWidget *selector;
 262         g_return_if_fail (self);
 263
 264         selector = GTK_WIDGET (hildon_picker_button_get_selector (HILDON_PICKER_BUTTON (self)));
 265
 266         if (hildon_touch_selector_get_selected (HILDON_TOUCH_SELECTOR (selector), 0, &iter)) {
 267                 GtkTreeModel *model;
 268
 269                 model = hildon_touch_selector_get_model (HILDON_TOUCH_SELECTOR (selector), 0);
 270                 gtk_tree_model_get_value (model, &iter, column, val);
 271         }
 272 }
 273
 274 gpointer
 275 modest_selector_picker_get_active_id (ModestSelectorPicker *self)
 276 {
 277         GValue val = {0,};
 278
 279         g_return_val_if_fail (self, NULL);
 280
 281         /* Do not unset the GValue */
 282         get_active (self, &val, COLUMN_ID);
 283
 284         return g_value_get_pointer (&val);
 285 }
 286
 287
 288 void
 289 modest_selector_picker_set_active_id (ModestSelectorPicker *self, gpointer id)
 290 {
 291         GtkTreeModel *model;
 292         GtkTreeIter iter;
 293         ModestSelectorPickerPrivate *priv;
 294         gboolean found = FALSE;
 295         GtkWidget *selector;
 296
 297         g_return_if_fail (self);
 298
 299         priv = MODEST_SELECTOR_PICKER_GET_PRIVATE(self);
 300         selector = GTK_WIDGET (hildon_picker_button_get_selector (HILDON_PICKER_BUTTON (self)));
 301
 302         model = hildon_touch_selector_get_model (HILDON_TOUCH_SELECTOR(selector), 0);
 303         if (!gtk_tree_model_get_iter_first (model, &iter))
 304                 return; /* empty list */
 305
 306         do {
 307                 gpointer row_id;
 308                 gtk_tree_model_get (model, &iter, COLUMN_ID, &row_id, -1);
 309                 if ((priv->id_equal_func)(id, row_id)) {
 310                         hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector), 0,
 311                                                            &iter, TRUE);
 312
 313                         hildon_button_set_value (HILDON_BUTTON (self),
 314                                                  hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
 315                         found = TRUE;
 316                 }
 317         } while (!found && gtk_tree_model_iter_next (model, &iter));
 318
 319         if (!found)
 320                 g_printerr ("modest: could not set the active id\n");
 321 }
 322
 323
 324
 325 const gchar*
 326 modest_selector_picker_get_active_display_name (ModestSelectorPicker *self)
 327 {
 328         const GValue val = {0,};
 329         const gchar *retval;
 330
 331         g_return_val_if_fail (self, NULL);
 332
 333         /* Do not unset the GValue */
 334         get_active (self, (GValue *)&val, COLUMN_DISPLAY_NAME);
 335         retval = g_value_get_string (&val);
 336
 337         return retval;
 338 }
 339
 340 void
 341 modest_selector_picker_set_value_max_chars (ModestSelectorPicker *self,
 342                                             gint value_max_chars)
 343 {
 344         ModestSelectorPickerPrivate *priv;
 345
 346         g_return_if_fail (self);
 347         priv = MODEST_SELECTOR_PICKER_GET_PRIVATE(self);
 348
 349         if (value_max_chars != priv->value_max_chars) {
 350                 GtkWidget *selector;
 351
 352                 priv->value_max_chars = value_max_chars;
 353                 selector = GTK_WIDGET (hildon_picker_button_get_selector (HILDON_PICKER_BUTTON (self)));
 354                 hildon_touch_selector_set_print_func (HILDON_TOUCH_SELECTOR (selector), (HildonTouchSelectorPrintFunc) touch_selector_print_func);
 355         }
 356 }
 357
 358 gint
 359 modest_selector_picker_get_value_max_chars (ModestSelectorPicker *self)
 360 {
 361         ModestSelectorPickerPrivate *priv;
 362         g_return_val_if_fail (self, -1);
 363
 364         priv = MODEST_SELECTOR_PICKER_GET_PRIVATE(self);
 365
 366         return priv->value_max_chars;
 367 }