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
 104
 105 /*****************************************************************************/
 106 /* Finalize Method.                                                          */
 107 /*****************************************************************************/
 108 static void
 109 gl_font_history_model_finalize (GObject *object)
 110 {
 111         glFontHistoryModel    *this;
 112
 113         g_return_if_fail (object && IS_GL_FONT_HISTORY_MODEL (object));
 114         this = GL_FONT_HISTORY_MODEL (object);
 115
 116         g_object_unref (G_OBJECT(this->priv->history));
 117         g_free (this->priv);
 118
 119         G_OBJECT_CLASS (gl_font_history_model_parent_class)->finalize (object);
 120 }
 121
 122
 123 /*****************************************************************************/
 124 /** New Object Generator.                                                    */
 125 /*****************************************************************************/
 126 glFontHistoryModel *
 127 gl_font_history_model_new (guint n)
 128 {
 129         glFontHistoryModel *this;
 130
 131         this = g_object_new (TYPE_GL_FONT_HISTORY_MODEL, NULL);
 132
 133         this->priv->history = g_settings_new ("org.gnome.glabels-3.history");
 134
 135         g_signal_connect_swapped (G_OBJECT (this->priv->history),
 136                                   "changed::recent-fonts",
 137                                   G_CALLBACK (history_changed_cb), this);
 138
 139         this->priv->max_n = n;
 140
 141         return this;
 142 }
 143
 144
 145 /*****************************************************************************/
 146 /** New Null Object Generator.                                               */
 147 /*****************************************************************************/
 148 glFontHistoryModel *
 149 gl_font_history_model_new_null (void)
 150 {
 151         glFontHistoryModel *this;
 152
 153         this = g_object_new (TYPE_GL_FONT_HISTORY_MODEL, NULL);
 154
 155         this->priv->max_n = 0;
 156
 157         return this;
 158 }
 159
 160
 161 /*****************************************************************************/
 162 /* Add font to history.                                                      */
 163 /*****************************************************************************/
 164 void
 165 gl_font_history_model_add_family (glFontHistoryModel *this,
 166                                   const gchar        *family)
 167 {
 168         if ( this->priv->history )
 169         {
 170                 gchar **old;
 171                 gchar **new;
 172                 gint    i, j;
 173
 174                 old = g_settings_get_strv (this->priv->history, "recent-fonts");
 175
 176                 new = g_new0 (gchar *, this->priv->max_n+1);
 177
 178                 /* Put in first slot. */
 179                 new[0] = g_strdup (family);
 180
 181                 /* Push everthing else down, pruning any duplicate found. */
 182                 for ( i = 0, j = 1; (j < (this->priv->max_n-1)) && old[i]; i++ )
 183                 {
 184                         if ( lgl_str_utf8_casecmp (family, old[i]) != 0 )
 185                         {
 186                                 new[j++] = g_strdup (old[i]);
 187                         }
 188                 }
 189
 190                 g_settings_set_strv (this->priv->history, "recent-fonts",
 191                                      (const gchar * const *)new);
 192
 193                 g_strfreev (old);
 194                 g_strfreev (new);
 195         }
 196 }
 197
 198
 199 /*****************************************************************************/
 200 /* History changed callback.                                                 */
 201 /*****************************************************************************/
 202 static void
 203 history_changed_cb                  (glFontHistoryModel  *this)
 204 {
 205         g_signal_emit (G_OBJECT(this), signals[CHANGED], 0);
 206 }
 207
 208
 209 /*****************************************************************************/
 210 /* Get list of font families.                                                */
 211 /*****************************************************************************/
 212 GList *
 213 gl_font_history_model_get_family_list (glFontHistoryModel *this)
 214 {
 215         GList  *list = NULL;
 216
 217         if ( this->priv->history )
 218         {
 219                 gchar **strv;
 220                 gint    i;
 221
 222                 strv = g_settings_get_strv (this->priv->history, "recent-fonts");
 223
 224                 /*
 225                  * Proof read name list; transfer storage to new list.
 226                  */
 227                 for ( i = 0; strv[i]; i++ )
 228                 {
 229                         if ( gl_font_util_is_family_installed (strv[i]) )
 230                         {
 231                                 list = g_list_append (list, g_strdup (strv[i]));
 232                         }
 233                 }
 234                 g_strfreev (strv);
 235         }
 236
 237         return list;
 238 }
 239
 240
 241 /*****************************************************************************/
 242 /* Free font family list.                                                    */
 243 /*****************************************************************************/
 244 void
 245 gl_font_history_model_free_family_list (GList *list)
 246 {
 247         GList *p;
 248
 249         for ( p = list; p; p=p->next )
 250         {
 251                 g_free (p->data);
 252         }
 253         g_list_free (list);
 254 }
 255
 256
 257
 258 /*
 259  * Local Variables:       -- emacs
 260  * mode: C                -- emacs
 261  * c-basic-offset: 8      -- emacs
 262  * tab-width: 8           -- emacs
 263  * indent-tabs-mode: nil  -- emacs
 264  * End:                   -- emacs
 265  */