libdocument/ev-link-dest.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org>
   4  *  Copyright (C) 2005 Red Hat, Inc.
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include "ev-link-dest.h"
  22
  23 enum {
  24         PROP_0,
  25         PROP_TYPE,
  26         PROP_PAGE,
  27         PROP_LEFT,
  28         PROP_TOP,
  29         PROP_BOTTOM,
  30         PROP_RIGHT,
  31         PROP_ZOOM,
  32         PROP_NAMED,
  33         PROP_PAGE_LABEL
  34 };
  35
  36 struct _EvLinkDest {
  37         GObject base_instance;
  38
  39         EvLinkDestPrivate *priv;
  40 };
  41
  42 struct _EvLinkDestClass {
  43         GObjectClass base_class;
  44 };
  45
  46 struct _EvLinkDestPrivate {
  47         EvLinkDestType type;
  48         int            page;
  49         double         top;
  50         double         left;
  51         double         bottom;
  52         double         right;
  53         double         zoom;
  54         gchar         *named;
  55         gchar         *page_label;
  56 };
  57
  58 G_DEFINE_TYPE (EvLinkDest, ev_link_dest, G_TYPE_OBJECT)
  59
  60 #define EV_LINK_DEST_GET_PRIVATE(object) \
  61         (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_LINK_DEST, EvLinkDestPrivate))
  62
  63 GType
  64 ev_link_dest_type_get_type (void)
  65 {
  66         static GType type = 0;
  67
  68         if (G_UNLIKELY (type == 0)) {
  69                 static const GEnumValue values[] = {
  70                         { EV_LINK_DEST_TYPE_PAGE, "EV_LINK_DEST_TYPE_PAGE", "page" },
  71                         { EV_LINK_DEST_TYPE_XYZ, "EV_LINK_DEST_TYPE_XYZ", "xyz" },
  72                         { EV_LINK_DEST_TYPE_FIT, "EV_LINK_DEST_TYPE_FIT", "fit" },
  73                         { EV_LINK_DEST_TYPE_FITH, "EV_LINK_DEST_TYPE_FITH", "fith" },
  74                         { EV_LINK_DEST_TYPE_FITV, "EV_LINK_DEST_TYPE_FITV", "fitv" },
  75                         { EV_LINK_DEST_TYPE_FITR, "EV_LINK_DEST_TYPE_FITR", "fitr" },
  76                         { EV_LINK_DEST_TYPE_NAMED, "EV_LINK_DEST_TYPE_NAMED", "named" },
  77                         { EV_LINK_DEST_TYPE_PAGE_LABEL, "EV_LINK_DEST_TYPE_PAGE_LABEL", "page_label" },
  78                         { EV_LINK_DEST_TYPE_UNKNOWN, "EV_LINK_DEST_TYPE_UNKNOWN", "unknown" },
  79                         { 0, NULL, NULL }
  80                 };
  81
  82                 type = g_enum_register_static ("EvLinkDestType", values);
  83         }
  84
  85         return type;
  86 }
  87
  88 EvLinkDestType
  89 ev_link_dest_get_dest_type (EvLinkDest *self)
  90 {
  91         g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
  92
  93         return self->priv->type;
  94 }
  95
  96 gint
  97 ev_link_dest_get_page (EvLinkDest *self)
  98 {
  99         g_return_val_if_fail (EV_IS_LINK_DEST (self), -1);
 100
 101         return self->priv->page;
 102 }
 103
 104 gdouble
 105 ev_link_dest_get_top (EvLinkDest *self)
 106 {
 107         g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
 108
 109         return self->priv->top;
 110 }
 111
 112 gdouble
 113 ev_link_dest_get_left (EvLinkDest *self)
 114 {
 115         g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
 116
 117         return self->priv->left;
 118 }
 119
 120 gdouble
 121 ev_link_dest_get_bottom (EvLinkDest *self)
 122 {
 123         g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
 124
 125         return self->priv->bottom;
 126 }
 127
 128 gdouble
 129 ev_link_dest_get_right (EvLinkDest *self)
 130 {
 131         g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
 132
 133         return self->priv->right;
 134 }
 135
 136 gdouble
 137 ev_link_dest_get_zoom (EvLinkDest *self)
 138 {
 139         g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
 140
 141         return self->priv->zoom;
 142 }
 143
 144 const gchar *
 145 ev_link_dest_get_named_dest (EvLinkDest *self)
 146 {
 147         g_return_val_if_fail (EV_IS_LINK_DEST (self), NULL);
 148
 149         return self->priv->named;
 150 }
 151
 152 const gchar *
 153 ev_link_dest_get_page_label (EvLinkDest *self)
 154 {
 155         g_return_val_if_fail (EV_IS_LINK_DEST (self), NULL);
 156
 157         return self->priv->page_label;
 158 }
 159
 160 static void
 161 ev_link_dest_get_property (GObject    *object,
 162                            guint       prop_id,
 163                            GValue     *value,
 164                            GParamSpec *param_spec)
 165 {
 166         EvLinkDest *self;
 167
 168         self = EV_LINK_DEST (object);
 169
 170         switch (prop_id) {
 171                 case PROP_TYPE:
 172                         g_value_set_enum (value, self->priv->type);
 173                         break;
 174                 case PROP_PAGE:
 175                         g_value_set_int (value, self->priv->page);
 176                         break;
 177                 case PROP_TOP:
 178                         g_value_set_double (value, self->priv->top);
 179                         break;
 180                 case PROP_LEFT:
 181                         g_value_set_double (value, self->priv->left);
 182                         break;
 183                 case PROP_BOTTOM:
 184                         g_value_set_double (value, self->priv->bottom);
 185                         break;
 186                 case PROP_RIGHT:
 187                         g_value_set_double (value, self->priv->left);
 188                         break;
 189                 case PROP_ZOOM:
 190                         g_value_set_double (value, self->priv->zoom);
 191                         break;
 192                 case PROP_NAMED:
 193                         g_value_set_string (value, self->priv->named);
 194                         break;
 195                 case PROP_PAGE_LABEL:
 196                         g_value_set_string (value, self->priv->page_label);
 197                         break;
 198                 default:
 199                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
 200                                                            prop_id,
 201                                                            param_spec);
 202                         break;
 203         }
 204 }
 205
 206 static void
 207 ev_link_dest_set_property (GObject      *object,
 208                            guint         prop_id,
 209                            const GValue *value,
 210                            GParamSpec   *param_spec)
 211 {
 212         EvLinkDest *self = EV_LINK_DEST (object);
 213
 214         switch (prop_id) {
 215                 case PROP_TYPE:
 216                         self->priv->type = g_value_get_enum (value);
 217                         break;
 218                 case PROP_PAGE:
 219                         self->priv->page = g_value_get_int (value);
 220                         break;
 221                 case PROP_TOP:
 222                         self->priv->top = g_value_get_double (value);
 223                         break;
 224                 case PROP_LEFT:
 225                         self->priv->left = g_value_get_double (value);
 226                         break;
 227                 case PROP_BOTTOM:
 228                         self->priv->bottom = g_value_get_double (value);
 229                         break;
 230                 case PROP_RIGHT:
 231                         self->priv->right = g_value_get_double (value);
 232                         break;
 233                 case PROP_ZOOM:
 234                         self->priv->zoom = g_value_get_double (value);
 235                         break;
 236                 case PROP_NAMED:
 237                         self->priv->named = g_value_dup_string (value);
 238                         break;
 239                 case PROP_PAGE_LABEL:
 240                         self->priv->page_label = g_value_dup_string (value);
 241                         break;
 242                 default:
 243                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
 244                                                            prop_id,
 245                                                            param_spec);
 246                         break;
 247         }
 248 }
 249
 250 static void
 251 ev_link_dest_finalize (GObject *object)
 252 {
 253         EvLinkDestPrivate *priv;
 254
 255         priv = EV_LINK_DEST (object)->priv;
 256
 257         if (priv->named) {
 258                 g_free (priv->named);
 259                 priv->named = NULL;
 260         }
 261         if (priv->page_label) {
 262                 g_free (priv->page_label);
 263                 priv->page_label = NULL;
 264         }
 265
 266         G_OBJECT_CLASS (ev_link_dest_parent_class)->finalize (object);
 267 }
 268
 269 static void
 270 ev_link_dest_init (EvLinkDest *ev_link_dest)
 271 {
 272         ev_link_dest->priv = EV_LINK_DEST_GET_PRIVATE (ev_link_dest);
 273
 274         ev_link_dest->priv->named = NULL;
 275 }
 276
 277 static void
 278 ev_link_dest_class_init (EvLinkDestClass *ev_link_dest_class)
 279 {
 280         GObjectClass *g_object_class;
 281
 282         g_object_class = G_OBJECT_CLASS (ev_link_dest_class);
 283
 284         g_object_class->set_property = ev_link_dest_set_property;
 285         g_object_class->get_property = ev_link_dest_get_property;
 286
 287         g_object_class->finalize = ev_link_dest_finalize;
 288
 289         g_type_class_add_private (g_object_class, sizeof (EvLinkDestPrivate));
 290
 291         g_object_class_install_property (g_object_class,
 292                                          PROP_TYPE,
 293                                          g_param_spec_enum  ("type",
 294                                                              "Dest Type",
 295                                                              "The destination type",
 296                                                              EV_TYPE_LINK_DEST_TYPE,
 297                                                              EV_LINK_DEST_TYPE_UNKNOWN,
 298                                                              G_PARAM_READWRITE |
 299                                                              G_PARAM_CONSTRUCT_ONLY));
 300         g_object_class_install_property (g_object_class,
 301                                          PROP_PAGE,
 302                                          g_param_spec_int ("page",
 303                                                            "Dest Page",
 304                                                            "The destination page",
 305                                                            -1,
 306                                                            G_MAXINT,
 307                                                            0,
 308                                                            G_PARAM_READWRITE |
 309                                                            G_PARAM_CONSTRUCT_ONLY));
 310         g_object_class_install_property (g_object_class,
 311                                          PROP_LEFT,
 312                                          g_param_spec_double ("left",
 313                                                               "Left coordinate",
 314                                                               "The left coordinate",
 315                                                               -G_MAXDOUBLE,
 316                                                               G_MAXDOUBLE,
 317                                                               0,
 318                                                               G_PARAM_READWRITE |
 319                                                               G_PARAM_CONSTRUCT_ONLY));
 320         g_object_class_install_property (g_object_class,
 321                                          PROP_TOP,
 322                                          g_param_spec_double ("top",
 323                                                               "Top coordinate",
 324                                                               "The top coordinate",
 325                                                               -G_MAXDOUBLE,
 326                                                               G_MAXDOUBLE,
 327                                                               0,
 328                                                               G_PARAM_READWRITE |
 329                                                               G_PARAM_CONSTRUCT_ONLY));
 330         g_object_class_install_property (g_object_class,
 331                                          PROP_BOTTOM,
 332                                          g_param_spec_double ("bottom",
 333                                                               "Bottom coordinate",
 334                                                               "The bottom coordinate",
 335                                                               -G_MAXDOUBLE,
 336                                                               G_MAXDOUBLE,
 337                                                               0,
 338                                                               G_PARAM_READWRITE |
 339                                                               G_PARAM_CONSTRUCT_ONLY));
 340         g_object_class_install_property (g_object_class,
 341                                          PROP_RIGHT,
 342                                          g_param_spec_double ("right",
 343                                                               "Right coordinate",
 344                                                               "The right coordinate",
 345                                                               -G_MAXDOUBLE,
 346                                                               G_MAXDOUBLE,
 347                                                               0,
 348                                                               G_PARAM_READWRITE |
 349                                                               G_PARAM_CONSTRUCT_ONLY));
 350
 351         g_object_class_install_property (g_object_class,
 352                                          PROP_ZOOM,
 353                                          g_param_spec_double ("zoom",
 354                                                               "Zoom",
 355                                                               "Zoom",
 356                                                               0,
 357                                                               G_MAXDOUBLE,
 358                                                               0,
 359                                                               G_PARAM_READWRITE |
 360                                                               G_PARAM_CONSTRUCT_ONLY));
 361         g_object_class_install_property (g_object_class,
 362                                          PROP_NAMED,
 363                                          g_param_spec_string ("named",
 364                                                               "Named destination",
 365                                                               "The named destination",
 366                                                               NULL,
 367                                                               G_PARAM_READWRITE |
 368                                                               G_PARAM_CONSTRUCT_ONLY));
 369         g_object_class_install_property (g_object_class,
 370                                          PROP_PAGE_LABEL,
 371                                          g_param_spec_string ("page_label",
 372                                                               "Label of the page",
 373                                                               "The label of the destination page",
 374                                                               NULL,
 375                                                               G_PARAM_READWRITE |
 376                                                               G_PARAM_CONSTRUCT_ONLY));
 377 }
 378
 379 EvLinkDest *
 380 ev_link_dest_new_page (gint page)
 381 {
 382         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 383                                            "page", page,
 384                                            "type", EV_LINK_DEST_TYPE_PAGE,
 385                                            NULL));
 386 }
 387
 388 EvLinkDest *
 389 ev_link_dest_new_xyz (gint    page,
 390                       gdouble left,
 391                       gdouble top,
 392                       gdouble zoom)
 393 {
 394         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 395                                            "page", page,
 396                                            "type", EV_LINK_DEST_TYPE_XYZ,
 397                                            "left", left,
 398                                            "top", top,
 399                                            "zoom", zoom,
 400                                            NULL));
 401 }
 402
 403 EvLinkDest *
 404 ev_link_dest_new_fit (gint page)
 405 {
 406         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 407                                            "page", page,
 408                                            "type", EV_LINK_DEST_TYPE_FIT,
 409                                            NULL));
 410 }
 411
 412 EvLinkDest *
 413 ev_link_dest_new_fith (gint    page,
 414                        gdouble top)
 415 {
 416         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 417                                            "page", page,
 418                                            "type", EV_LINK_DEST_TYPE_FITH,
 419                                            "top", top,
 420                                            NULL));
 421 }
 422
 423 EvLinkDest *
 424 ev_link_dest_new_fitv (gint    page,
 425                        gdouble left)
 426 {
 427         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 428                                            "page", page,
 429                                            "type", EV_LINK_DEST_TYPE_FITV,
 430                                            "left", left,
 431                                            NULL));
 432 }
 433
 434 EvLinkDest *
 435 ev_link_dest_new_fitr (gint    page,
 436                        gdouble left,
 437                        gdouble bottom,
 438                        gdouble right,
 439                        gdouble top)
 440 {
 441         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 442                                            "page", page,
 443                                            "type", EV_LINK_DEST_TYPE_FITR,
 444                                            "left", left,
 445                                            "bottom", bottom,
 446                                            "right", right,
 447                                            "top", top,
 448                                            NULL));
 449 }
 450
 451 EvLinkDest *
 452 ev_link_dest_new_named (const gchar *named_dest)
 453 {
 454         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 455                                            "named", named_dest,
 456                                            "type", EV_LINK_DEST_TYPE_NAMED,
 457                                            NULL));
 458 }
 459
 460 EvLinkDest *
 461 ev_link_dest_new_page_label (const gchar *page_label)
 462 {
 463         return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
 464                                            "page_label", page_label,
 465                                            "type", EV_LINK_DEST_TYPE_PAGE_LABEL,
 466                                            NULL));
 467 }