src/vikmapslayer.h

   1 /*
   2  * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
   3  *
   4  * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it 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  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU 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
  22 #ifndef _VIKING_MAPSLAYER_H
  23 #define _VIKING_MAPSLAYER_H
  24
  25 #include "vikcoord.h"
  26 #include "viklayer.h"
  27 #include "vikviewport.h"
  28 #include "mapcoord.h"
  29
  30 #define VIK_MAPS_LAYER_TYPE            (vik_maps_layer_get_type ())
  31 #define VIK_MAPS_LAYER(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_MAPS_LAYER_TYPE, VikMapsLayer))
  32 #define VIK_MAPS_LAYER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_MAPS_LAYER_TYPE, VikMapsLayerClass))
  33 #define IS_VIK_MAPS_LAYER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), VIK_MAPS_LAYER_TYPE))
  34 #define IS_VIK_MAPS_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), VIK_MAPS_LAYER_TYPE))
  35
  36 typedef struct _VikMapsLayerClass VikMapsLayerClass;
  37 struct _VikMapsLayerClass
  38 {
  39   VikLayerClass object_class;
  40 };
  41
  42 GType vik_maps_layer_get_type ();
  43
  44 typedef struct _VikMapsLayer VikMapsLayer;
  45
  46 typedef struct {
  47   guint8 uniq_id;
  48   guint16 tilesize_x;
  49   guint16 tilesize_y;
  50   guint drawmode;
  51   gboolean (*coord_to_mapcoord) ( const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );
  52   void (*mapcoord_to_center_coord) ( MapCoord *src, VikCoord *dest );
  53   int (*download) ( MapCoord *src, const gchar *dest_fn );
  54   /* TODO: constant size (yay!) */
  55 } VikMapsLayer_MapType;
  56
  57 void maps_layer_register_type ( const char *label, guint id, VikMapsLayer_MapType *map_type );
  58 void maps_layer_download_section_without_redraw ( VikMapsLayer *vml, VikViewport *vvp, VikCoord *ul, VikCoord *br, gdouble zoom);
  59 gint vik_maps_layer_get_map_type(VikMapsLayer *vml);
  60 gchar *vik_maps_layer_get_map_label(VikMapsLayer *vml);
  61 gchar *maps_layer_default_dir ();
  62
  63
  64 #endif