git.sur5r.net Git - glabels/blob - src/template-history-model.c

   1 /*
   2  *  template-history-model.c
   3  *  Copyright (C) 2009  Jim Evins <evins@snaught.com>.
   4  *
   5  *  This file is part of gLabels.
   6  *
   7  *  gLabels is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation, either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  gLabels is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with gLabels.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22
  23 #include "template-history-model.h"
  24
  25 #include <gio/gio.h>
  26
  27 #include <libglabels.h>
  28 #include "marshal.h"
  29
  30
  31 /*========================================================*/
  32 /* Private types.                                         */
  33 /*========================================================*/
  34
  35 struct _glTemplateHistoryModelPrivate {
  36
  37         GSettings   *history;
  38
  39         guint        max_n;
  40 };
  41
  42 enum {
  43         CHANGED,
  44         LAST_SIGNAL
  45 };
  46
  47
  48 /*========================================================*/
  49 /* Private globals.                                       */
  50 /*========================================================*/
  51
  52 static guint signals[LAST_SIGNAL] = {0};
  53
  54
  55 /*========================================================*/
  56 /* Private function prototypes.                           */
  57 /*========================================================*/
  58
  59 static void gl_template_history_model_finalize (GObject                 *object);
  60
  61 static void history_changed_cb                 (glTemplateHistoryModel  *this);
  62
  63
  64 /*****************************************************************************/
  65 /* Object infrastructure.                                                    */
  66 /*****************************************************************************/
  67 G_DEFINE_TYPE (glTemplateHistoryModel, gl_template_history_model, G_TYPE_OBJECT)
  68
  69
  70 /*****************************************************************************/
  71 /* Class Init Function.                                                      */
  72 /*****************************************************************************/
  73 static void
  74 gl_template_history_model_class_init (glTemplateHistoryModelClass *class)
  75 {
  76         GObjectClass  *gobject_class = (GObjectClass *) class;
  77
  78         gl_template_history_model_parent_class = g_type_class_peek_parent (class);
  79
  80         gobject_class->finalize = gl_template_history_model_finalize;
  81
  82         signals[CHANGED] =
  83                 g_signal_new ("changed",
  84                               G_OBJECT_CLASS_TYPE (gobject_class),
  85                               G_SIGNAL_RUN_LAST,
  86                               G_STRUCT_OFFSET (glTemplateHistoryModelClass, changed),
  87                               NULL, NULL,
  88                               gl_marshal_VOID__VOID,
  89                               G_TYPE_NONE,
  90                               0);
  91 }
  92
  93
  94 /*****************************************************************************/
  95 /* Object Instance Init Function.                                            */
  96 /*****************************************************************************/
  97 static void
  98 gl_template_history_model_init (glTemplateHistoryModel *this)
  99 {
 100         this->priv = g_new0 (glTemplateHistoryModelPrivate, 1);
 101 }
 102
 103
 104 /*****************************************************************************/
 105 /* Finalize Method.                                                          */
 106 /*****************************************************************************/
 107 static void
 108 gl_template_history_model_finalize (GObject *object)
 109 {
 110         glTemplateHistoryModel    *this;
 111
 112         g_return_if_fail (object && IS_GL_TEMPLATE_HISTORY_MODEL (object));
 113         this = GL_TEMPLATE_HISTORY_MODEL (object);
 114
 115         g_object_unref (G_OBJECT(this->priv->history));
 116         g_free (this->priv);
 117
 118         G_OBJECT_CLASS (gl_template_history_model_parent_class)->finalize (object);
 119 }
 120
 121
 122 /*****************************************************************************/
 123 /** New Object Generator.                                                    */
 124 /*****************************************************************************/
 125 glTemplateHistoryModel *
 126 gl_template_history_model_new (guint n)
 127 {
 128         glTemplateHistoryModel *this;
 129
 130         this = g_object_new (TYPE_GL_TEMPLATE_HISTORY_MODEL, NULL);
 131
 132         this->priv->history = g_settings_new ("org.gnome.glabels-3.history");
 133
 134         g_signal_connect_swapped (G_OBJECT (this->priv->history),
 135                                   "changed::recent-templates",
 136                                   G_CALLBACK (history_changed_cb), this);
 137
 138         this->priv->max_n = n;
 139
 140         return this;
 141 }
 142
 143
 144 /*****************************************************************************/
 145 /** New null Object Generator.                                               */
 146 /*****************************************************************************/
 147 glTemplateHistoryModel *
 148 gl_template_history_model_new_null (void)
 149 {
 150         glTemplateHistoryModel *this;
 151
 152         this = g_object_new (TYPE_GL_TEMPLATE_HISTORY_MODEL, NULL);
 153
 154         this->priv->max_n = 0;
 155
 156         return this;
 157 }
 158
 159
 160 /*****************************************************************************/
 161 /* Add template to history.                                                  */
 162 /*****************************************************************************/
 163 void
 164 gl_template_history_model_add_name (glTemplateHistoryModel *this,
 165                                     const gchar            *name)
 166 {
 167         if ( this->priv->history )
 168         {
 169                 gchar **old;
 170                 gchar **new;
 171                 gint    i, j;
 172
 173                 old = g_settings_get_strv (this->priv->history, "recent-templates");
 174
 175                 new = g_new0 (gchar *, this->priv->max_n+1);
 176
 177                 /* Put in first slot. */
 178                 new[0] = g_strdup (name);
 179
 180                 /* Push everthing else down, pruning any duplicate found. */
 181                 for ( i = 0, j = 1; (j < (this->priv->max_n-1)) && old[i]; i++ )
 182                 {
 183                         if ( lgl_str_utf8_casecmp (name, old[i]) != 0 )
 184                         {
 185                                 new[j++] = g_strdup (old[i]);
 186                         }
 187                 }
 188
 189                 g_settings_set_strv (this->priv->history, "recent-templates",
 190                                      (const gchar * const *)new);
 191
 192                 g_strfreev (old);
 193                 g_strfreev (new);
 194         }
 195 }
 196
 197
 198 /*****************************************************************************/
 199 /* History changed callback.                                                 */
 200 /*****************************************************************************/
 201 static void
 202 history_changed_cb (glTemplateHistoryModel  *this)
 203 {
 204         g_signal_emit (G_OBJECT(this), signals[CHANGED], 0);
 205 }
 206
 207
 208 /*****************************************************************************/
 209 /* Get list of template families.                                            */
 210 /*****************************************************************************/
 211 GList *
 212 gl_template_history_model_get_name_list (glTemplateHistoryModel *this)
 213 {
 214         GList  *list = NULL;
 215
 216         if ( this->priv->history )
 217         {
 218                 gchar **strv;
 219                 gint    i;
 220
 221                 strv = g_settings_get_strv (this->priv->history, "recent-templates");
 222
 223                 /*
 224                  * Proof read name list; transfer storage to new list.
 225                  */
 226                 for ( i = 0; strv[i]; i++ )
 227                 {
 228                         if ( lgl_db_does_template_name_exist (strv[i]) )
 229                         {
 230                                 list = g_list_append (list, g_strdup (strv[i]));
 231                         }
 232                 }
 233                 g_strfreev (strv);
 234         }
 235
 236         return list;
 237 }
 238
 239
 240 /*****************************************************************************/
 241 /* Free template name list.                                                  */
 242 /*****************************************************************************/
 243 void
 244 gl_template_history_model_free_name_list (GList *list)
 245 {
 246         GList *p;
 247
 248         for ( p = list; p; p=p->next )
 249         {
 250                 g_free (p->data);
 251         }
 252         g_list_free (list);
 253 }
 254
 255
 256
 257 /*
 258  * Local Variables:       -- emacs
 259  * mode: C                -- emacs
 260  * c-basic-offset: 8      -- emacs
 261  * tab-width: 8           -- emacs
 262  * indent-tabs-mode: nil  -- emacs
 263  * End:                   -- emacs
 264  */