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

   1 /*
   2  *  font-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 "font-history-model.h"
  24
  25 #include <gio/gio.h>
  26
  27 #include <libglabels.h>
  28 #include "font-util.h"
  29 #include "marshal.h"
  30
  31
  32 /*========================================================*/
  33 /* Private types.                                         */
  34 /*========================================================*/
  35
  36 struct _glFontHistoryModelPrivate {
  37
  38         GSettings   *history;
  39
  40         guint        max_n;
  41 };
  42
  43 enum {
  44         CHANGED,
  45         LAST_SIGNAL
  46 };
  47
  48
  49 /*========================================================*/
  50 /* Private globals.                                       */
  51 /*========================================================*/
  52
  53 static guint signals[LAST_SIGNAL] = {0};
  54
  55
  56 /*========================================================*/
  57 /* Private function prototypes.                           */
  58 /*========================================================*/
  59
  60 static void gl_font_history_model_finalize      (GObject             *object);
  61
  62 static void history_changed_cb                  (glFontHistoryModel  *this);
  63
  64
  65 /*****************************************************************************/
  66 /* Object infrastructure.                                                    */
  67 /*****************************************************************************/
  68 G_DEFINE_TYPE (glFontHistoryModel, gl_font_history_model, G_TYPE_OBJECT)
  69
  70
  71 /*****************************************************************************/
  72 /* Class Init Function.                                                      */
  73 /*****************************************************************************/
  74 static void
  75 gl_font_history_model_class_init (glFontHistoryModelClass *class)
  76 {
  77         GObjectClass  *gobject_class = (GObjectClass *) class;
  78
  79         gl_font_history_model_parent_class = g_type_class_peek_parent (class);
  80
  81         gobject_class->finalize = gl_font_history_model_finalize;
  82
  83         signals[CHANGED] =
  84                 g_signal_new ("changed",
  85                               G_OBJECT_CLASS_TYPE (gobject_class),
  86                               G_SIGNAL_RUN_LAST,
  87                               G_STRUCT_OFFSET (glFontHistoryModelClass, changed),
  88                               NULL, NULL,
  89                               gl_marshal_VOID__VOID,
  90                               G_TYPE_NONE,
  91                               0);
  92 }
  93
  94
  95 /*****************************************************************************/
  96 /* Object Instance Init Function.                                            */
  97 /*****************************************************************************/
  98 static void
  99 gl_font_history_model_init (glFontHistoryModel *this)
 100 {
 101         this->priv = g_new0 (glFontHistoryModelPrivate, 1);
 102
 103         this->priv->history = g_settings_new ("org.gnome.glabels-3.history");
 104
 105         g_return_if_fail (this->priv->history != NULL);
 106
 107         g_signal_connect_swapped (G_OBJECT (this->priv->history),
 108                                   "changed::recent-fonts",
 109                                   G_CALLBACK (history_changed_cb), this);
 110 }
 111
 112
 113 /*****************************************************************************/
 114 /* Finalize Method.                                                          */
 115 /*****************************************************************************/
 116 static void
 117 gl_font_history_model_finalize (GObject *object)
 118 {
 119         glFontHistoryModel    *this;
 120
 121         g_return_if_fail (object && IS_GL_FONT_HISTORY_MODEL (object));
 122         this = GL_FONT_HISTORY_MODEL (object);
 123
 124         g_object_unref (G_OBJECT(this->priv->history));
 125         g_free (this->priv);
 126
 127         G_OBJECT_CLASS (gl_font_history_model_parent_class)->finalize (object);
 128 }
 129
 130
 131 /*****************************************************************************/
 132 /** New Object Generator.                                                    */
 133 /*****************************************************************************/
 134 glFontHistoryModel *
 135 gl_font_history_model_new (guint n)
 136 {
 137         glFontHistoryModel *this;
 138
 139         this = g_object_new (TYPE_GL_FONT_HISTORY_MODEL, NULL);
 140
 141         this->priv->max_n = n;
 142
 143         return this;
 144 }
 145
 146
 147 /*****************************************************************************/
 148 /* Add font to history.                                                      */
 149 /*****************************************************************************/
 150 void
 151 gl_font_history_model_add_family (glFontHistoryModel *this,
 152                                   const gchar        *family)
 153 {
 154         gchar **old;
 155         gchar **new;
 156         gint    i, j;
 157
 158         old = g_settings_get_strv (this->priv->history, "recent-fonts");
 159
 160         new = g_new0 (gchar *, this->priv->max_n+1);
 161
 162         /* Put in first slot. */
 163         new[0] = g_strdup (family);
 164
 165         /* Push everthing else down, pruning any duplicate found. */
 166         for ( i = 0, j = 1; (j < (this->priv->max_n-1)) && old[i]; i++ )
 167         {
 168                 if ( lgl_str_utf8_casecmp (family, old[i]) != 0 )
 169                 {
 170                         new[j++] = g_strdup (old[i]);
 171                 }
 172         }
 173
 174         g_settings_set_strv (this->priv->history, "recent-fonts",
 175                              (const gchar * const *)new);
 176
 177         g_strfreev (old);
 178         g_strfreev (new);
 179 }
 180
 181
 182 /*****************************************************************************/
 183 /* History changed callback.                                                 */
 184 /*****************************************************************************/
 185 static void
 186 history_changed_cb                  (glFontHistoryModel  *this)
 187 {
 188         g_signal_emit (G_OBJECT(this), signals[CHANGED], 0);
 189 }
 190
 191
 192 /*****************************************************************************/
 193 /* Get list of font families.                                                */
 194 /*****************************************************************************/
 195 GList *
 196 gl_font_history_model_get_family_list (glFontHistoryModel *this)
 197 {
 198         gchar **strv;
 199         GList  *list = NULL;
 200         gint    i;
 201
 202         strv = g_settings_get_strv (this->priv->history, "recent-fonts");
 203
 204         /*
 205          * Proof read name list; transfer storage to new list.
 206          */
 207         for ( i = 0; strv[i]; i++ )
 208         {
 209                 if ( gl_font_util_is_family_installed (strv[i]) )
 210                 {
 211                         list = g_list_append (list, g_strdup (strv[i]));
 212                 }
 213         }
 214         g_strfreev (strv);
 215
 216         return list;
 217 }
 218
 219
 220 /*****************************************************************************/
 221 /* Free font family list.                                                    */
 222 /*****************************************************************************/
 223 void
 224 gl_font_history_model_free_family_list (GList *list)
 225 {
 226         GList *p;
 227
 228         for ( p = list; p; p=p->next )
 229         {
 230                 g_free (p->data);
 231         }
 232         g_list_free (list);
 233 }
 234
 235
 236
 237 /*
 238  * Local Variables:       -- emacs
 239  * mode: C                -- emacs
 240  * c-basic-offset: 8      -- emacs
 241  * tab-width: 8           -- emacs
 242  * indent-tabs-mode: nil  -- emacs
 243  * End:                   -- emacs
 244  */