* Added new ModestSelectorPicker that will replace ModestComboBox in
[modest] / src / hildon2 / modest-selector-picker.c
diff --git a/src/hildon2/modest-selector-picker.c b/src/hildon2/modest-selector-picker.c
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+/* Copyright (c) 2006, 2008 Nokia Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * * Neither the name of the Nokia Corporation nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <gtk/gtkcelllayout.h>
+#include <gtk/gtkcellrenderertext.h>
+#include <gtk/gtkliststore.h>
+#include "modest-selector-picker.h"
+
+/* 'private'/'protected' functions */
+static void modest_selector_picker_class_init (ModestSelectorPickerClass *klass);
+static void modest_selector_picker_init       (ModestSelectorPicker *obj);
+static void modest_selector_picker_finalize   (GObject *obj);
+
+enum {
+       COLUMN_ID,
+       COLUMN_DISPLAY_NAME,
+       COLUMN_NUM
+};
+
+typedef struct _ModestSelectorPickerPrivate ModestSelectorPickerPrivate;
+struct _ModestSelectorPickerPrivate {
+       GEqualFunc id_equal_func;
+       
+};
+#define MODEST_SELECTOR_PICKER_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
+                                                                               MODEST_TYPE_SELECTOR_PICKER, \
+                                                                               ModestSelectorPickerPrivate))
+/* globals */
+static GObjectClass *parent_class = NULL;
+
+GType
+modest_selector_picker_get_type (void)
+{
+       static GType my_type = 0;
+       if (!my_type) {
+               static const GTypeInfo my_info = {
+                       sizeof(ModestSelectorPickerClass),
+                       NULL,           /* base init */
+                       NULL,           /* base finalize */
+                       (GClassInitFunc) modest_selector_picker_class_init,
+                       NULL,           /* class finalize */
+                       NULL,           /* class data */
+                       sizeof(ModestSelectorPicker),
+                       1,              /* n_preallocs */
+                       (GInstanceInitFunc) modest_selector_picker_init,
+                       NULL
+               };
+               my_type = g_type_register_static (HILDON_TYPE_PICKER_BUTTON,
+                                                 "ModestSelectorPicker",
+                                                 &my_info, 0);
+       }
+       return my_type;
+}
+
+static void
+modest_selector_picker_class_init (ModestSelectorPickerClass *klass)
+{
+       GObjectClass *gobject_class;
+       gobject_class = (GObjectClass*) klass;
+
+       parent_class            = g_type_class_peek_parent (klass);
+       gobject_class->finalize = modest_selector_picker_finalize;
+
+       g_type_class_add_private (gobject_class, sizeof(ModestSelectorPickerPrivate));
+
+}
+
+static void
+modest_selector_picker_init (ModestSelectorPicker *obj)
+{
+}
+
+static void
+modest_selector_picker_finalize (GObject *obj)
+{
+/*     free/unref instance resources here */
+       G_OBJECT_CLASS(parent_class)->finalize (obj);
+}
+
+static gchar *
+touch_selector_print_func (HildonTouchSelector *selector)
+{
+       GtkTreeIter iter;
+       if (hildon_touch_selector_get_selected (HILDON_TOUCH_SELECTOR (selector), 0, &iter)) {
+               GtkTreeModel *model;
+               GValue value = {0,};
+               
+               model = hildon_touch_selector_get_model (HILDON_TOUCH_SELECTOR (selector), 0);
+               gtk_tree_model_get_value (model, &iter, COLUMN_DISPLAY_NAME, &value);
+               return g_value_dup_string (&value);
+       }
+       return NULL;
+}
+
+static GtkTreeModel*
+get_model (ModestPairList *pairs)
+{
+       GtkTreeIter iter;
+       GtkListStore *store;
+       GSList *cursor;
+       
+       store = gtk_list_store_new (2,
+                                   G_TYPE_POINTER, /* the id */
+                                   G_TYPE_STRING); /* the display name */
+       cursor = pairs;
+       while (cursor) {
+               ModestPair *pair = (ModestPair*)cursor->data;
+               gtk_list_store_insert_with_values (store, &iter, G_MAXINT,
+                                                  COLUMN_ID,           pair->first,
+                                                  COLUMN_DISPLAY_NAME, pair->second,
+                                                  -1);
+               cursor = cursor->next;
+       }
+       
+       return GTK_TREE_MODEL (store);
+}
+
+static GtkWidget *
+create_touch_selector (GtkTreeModel *model)
+{
+       GtkCellRenderer *renderer;
+       GtkWidget *selector;
+
+       renderer = gtk_cell_renderer_text_new ();
+       g_object_set (G_OBJECT (renderer), "ellipsize", PANGO_ELLIPSIZE_END, NULL);
+
+       selector = hildon_touch_selector_new ();
+       hildon_touch_selector_append_column (HILDON_TOUCH_SELECTOR (selector), GTK_TREE_MODEL (model),
+                                            renderer, "text", COLUMN_DISPLAY_NAME, NULL);
+
+       hildon_touch_selector_set_model (HILDON_TOUCH_SELECTOR(selector), 0, model);
+       hildon_touch_selector_set_print_func (HILDON_TOUCH_SELECTOR (selector), touch_selector_print_func);
+
+       return selector;
+}
+
+void
+modest_selector_picker_set_pair_list (ModestSelectorPicker *self, ModestPairList *pairs)
+{
+       GtkTreeModel *model;
+       GtkTreeIter iter;
+       GtkWidget *selector;
+
+       model = get_model (pairs);
+
+       selector = create_touch_selector (model);       
+       gtk_tree_model_get_iter_first (GTK_TREE_MODEL(model), &iter);
+       hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector), 0, &iter, TRUE);
+       g_object_unref (model);
+
+       hildon_picker_button_set_selector (HILDON_PICKER_BUTTON (self), HILDON_TOUCH_SELECTOR (selector));
+}
+
+
+
+GtkWidget*
+modest_selector_picker_new (ModestPairList *pairs, GEqualFunc id_equal_func)
+{
+       GtkTreeModel *model;
+       GObject *obj;
+       ModestSelectorPickerPrivate *priv;
+       GtkTreeIter iter;
+
+       obj  = G_OBJECT(g_object_new(MODEST_TYPE_SELECTOR_PICKER,
+                                    "size", HILDON_SIZE_AUTO,
+                                    "arrangement", HILDON_BUTTON_ARRANGEMENT_VERTICAL,
+                                    NULL));
+       priv = MODEST_SELECTOR_PICKER_GET_PRIVATE(obj);
+       
+       model = get_model (pairs);
+       if (model) {
+               GtkWidget *selector;
+
+               selector = create_touch_selector (model);
+               gtk_tree_model_get_iter_first (GTK_TREE_MODEL (model), &iter);
+               hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector), 0, &iter, TRUE);
+               g_object_unref (model);
+
+               hildon_picker_button_set_selector (HILDON_PICKER_BUTTON (obj), HILDON_TOUCH_SELECTOR (selector));
+       }
+
+       if (id_equal_func)
+               priv->id_equal_func = id_equal_func;
+       else
+               priv->id_equal_func = g_direct_equal; /* compare the ptr values */
+       
+       return GTK_WIDGET(obj);
+}
+
+
+
+static void
+get_active (ModestSelectorPicker *self, GValue *val, gint column)
+{
+       GtkTreeIter iter;
+       GtkWidget *selector;
+       g_return_if_fail (self);
+
+       selector = GTK_WIDGET (hildon_picker_button_get_selector (HILDON_PICKER_BUTTON (self)));
+
+       if (hildon_touch_selector_get_selected (HILDON_TOUCH_SELECTOR (selector), 0, &iter)) {
+               GtkTreeModel *model;
+               
+               model = hildon_touch_selector_get_model (HILDON_TOUCH_SELECTOR (selector), 0);
+               gtk_tree_model_get_value (model, &iter, column, val);
+       }
+}
+
+gpointer
+modest_selector_picker_get_active_id (ModestSelectorPicker *self)
+{
+       GValue val = {0,};
+
+       g_return_val_if_fail (self, NULL);
+       
+       /* Do not unset the GValue */
+       get_active (self, &val, COLUMN_ID);
+
+       return g_value_get_pointer (&val);
+}
+
+
+void
+modest_selector_picker_set_active_id (ModestSelectorPicker *self, gpointer id)
+{
+       GtkTreeModel *model;
+       GtkTreeIter iter;
+       ModestSelectorPickerPrivate *priv;
+       gboolean found = FALSE;
+       GtkWidget *selector;
+       
+       g_return_if_fail (self);
+
+       priv = MODEST_SELECTOR_PICKER_GET_PRIVATE(self);
+       selector = GTK_WIDGET (hildon_picker_button_get_selector (HILDON_PICKER_BUTTON (self)));
+       
+       model = hildon_touch_selector_get_model (HILDON_TOUCH_SELECTOR(selector), 0);
+       if (!gtk_tree_model_get_iter_first (model, &iter))
+               return; /* empty list */
+
+       do {
+               gpointer row_id;
+               gtk_tree_model_get (model, &iter, COLUMN_ID, &row_id, -1);
+               if ((priv->id_equal_func)(id, row_id)) {
+                       hildon_touch_selector_select_iter (HILDON_TOUCH_SELECTOR (selector), 0,
+                                                          &iter, TRUE);
+                       
+                       hildon_button_set_value (HILDON_BUTTON (self), 
+                                                hildon_touch_selector_get_current_text (HILDON_TOUCH_SELECTOR (selector)));
+                       found = TRUE;
+               }
+       } while (!found && gtk_tree_model_iter_next (model, &iter));
+
+       if (!found)
+               g_printerr ("modest: could not set the active id\n"); 
+}
+
+
+
+const gchar*
+modest_selector_picker_get_active_display_name (ModestSelectorPicker *self)
+{
+       const GValue val = {0,};
+       const gchar *retval;
+
+       g_return_val_if_fail (self, NULL);
+
+       /* Do not unset the GValue */
+       get_active (self, (GValue *)&val, COLUMN_DISPLAY_NAME);
+       retval = g_value_get_string (&val);
+
+       return retval;
+}