2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
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.
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.
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
23 #ifndef _VIKING_LAYER_H
24 #define _VIKING_LAYER_H
26 #define VIK_LAYER_TYPE (vik_layer_get_type ())
27 #define VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_LAYER_TYPE, VikLayer))
28 #define VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_LAYER_TYPE, VikLayerClass))
29 #define IS_VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), VIK_LAYER_TYPE))
30 #define IS_VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), VIK_LAYER_TYPE))
32 typedef struct _VikLayer VikLayer;
33 typedef struct _VikLayerClass VikLayerClass;
37 GObjectClass object_class;
38 void (* update) (VikLayer *vl);
41 GType vik_layer_get_type ();
49 VikTreeview *vt; /* simply a refernce */
52 /* for explicit "polymorphism" (function type switching) */
59 VIK_LAYER_AGGREGATE = 0,
67 typedef enum { VIK_LAYER_TOOL_IGNORED=0,
69 VIK_LAYER_TOOL_ACK_REDRAW_ABOVE,
70 VIK_LAYER_TOOL_ACK_REDRAW_ALL,
71 VIK_LAYER_TOOL_ACK_REDRAW_IF_VISIBLE }
72 VikLayerToolFuncStatus;
73 typedef VikLayerToolFuncStatus (*VikToolInterfaceFunc) (VikLayer *,GdkEventButton *,gpointer);
75 /* gpointer is viewport */
77 typedef struct _VikToolInterface VikToolInterface;
78 struct _VikToolInterface {
80 VikToolInterfaceFunc callback;
81 VikToolInterfaceFunc callback_release;
84 /* Parameters (for I/O and Properties) */
101 const gpointer widget_data;
102 const gpointer extra_widget_data;
106 VIK_LAYER_NOT_IN_PROPERTIES=-2,
107 VIK_LAYER_GROUP_NONE=-1
111 VIK_LAYER_WIDGET_CHECKBUTTON=0,
112 VIK_LAYER_WIDGET_RADIOGROUP,
113 VIK_LAYER_WIDGET_SPINBUTTON,
114 VIK_LAYER_WIDGET_ENTRY,
115 VIK_LAYER_WIDGET_FILEENTRY,
116 VIK_LAYER_WIDGET_HSCALE,
117 VIK_LAYER_WIDGET_COLOR,
118 VIK_LAYER_WIDGET_COMBOBOX,
126 } VikLayerParamScale;
130 VIK_LAYER_PARAM_DOUBLE=1,
131 VIK_LAYER_PARAM_UINT,
133 VIK_LAYER_PARAM_STRING,
134 VIK_LAYER_PARAM_BOOLEAN,
135 VIK_LAYER_PARAM_COLOR,
138 /* layer interface functions */
140 /* Create a new layer of a certain type. Should be filled with defaults */
141 typedef VikLayer * (*VikLayerFuncCreate) (VikViewport *);
143 /* normally only needed for layers with sublayers. This is called when they
144 * are added to the treeview so they can add sublayers to the treeview. */
145 typedef void (*VikLayerFuncRealize) (VikLayer *,VikTreeview *,GtkTreeIter *);
147 /* rarely used, this is called after a read operation or properties box is run.
148 * usually used to create GC's that depend on params,
149 * but GC's can also be created from create() or set_param() */
150 typedef void (*VikLayerFuncPostRead) (VikLayer *,gpointer vp);
152 typedef void (*VikLayerFuncFree) (VikLayer *);
154 /* do _not_ use this unless absolutely neccesary. Use the dynamic properties (see coordlayer for example)
155 * returns TRUE if OK was pressed */
156 typedef gboolean (*VikLayerFuncProperties) (VikLayer *,VikViewport *); /* gpointer is a VikViewport */
158 typedef void (*VikLayerFuncDraw) (VikLayer *,VikViewport *);
159 typedef void (*VikLayerFuncChangeCoordMode) (VikLayer *,VikCoordMode);
161 typedef void (*VikLayerFuncAddMenuItems) (VikLayer *,GtkMenu *,gpointer); /* gpointer is a VikLayersPanel */
162 typedef gboolean (*VikLayerFuncSublayerAddMenuItems) (VikLayer *,GtkMenu *,gpointer, /* first gpointer is a VikLayersPanel */
163 gint,gpointer,GtkTreeIter *);
164 typedef const gchar * (*VikLayerFuncSublayerRenameRequest) (VikLayer *,const gchar *,gpointer,
165 gint,VikViewport *,GtkTreeIter *); /* first gpointer is a VikLayersPanel */
166 typedef gboolean (*VikLayerFuncSublayerToggleVisible) (VikLayer *,gint,gpointer);
168 typedef VikLayer * (*VikLayerFuncCopy) (VikLayer *,VikViewport *);
170 /* returns TRUE if needs to redraw due to changed param */
171 typedef gboolean (*VikLayerFuncSetParam) (VikLayer *, guint16, VikLayerParamData, VikViewport *);
173 typedef VikLayerParamData
174 (*VikLayerFuncGetParam) (VikLayer *, guint16);
176 typedef void (*VikLayerFuncReadFileData) (VikLayer *, FILE *);
177 typedef void (*VikLayerFuncWriteFileData) (VikLayer *, FILE *);
179 typedef gpointer (*VikLayerFuncCopyItem) (VikLayer *, gint, gpointer);
180 typedef gboolean (*VikLayerFuncPasteItem) (VikLayer *, gint, gpointer);
181 typedef void (*VikLayerFuncFreeCopiedItem) (gint, gpointer);
183 /* treeview drag and drop method. called on the destination layer. it is given a source and destination layer,
184 * and the source and destination iters in the treeview.
186 typedef void (*VikLayerFuncDragDropRequest) (VikLayer *, VikLayer *, GtkTreeIter *, GtkTreePath *);
189 typedef struct _VikLayerInterface VikLayerInterface;
191 /* See vik_layer_* for function parameter names */
192 struct _VikLayerInterface {
194 const GdkPixdata * icon;
196 VikToolInterface * tools;
199 /* for I/O reading to and from .vik files -- params like coordline width, color, etc. */
200 VikLayerParam * params;
201 guint16 params_count;
202 gchar ** params_groups;
203 guint8 params_groups_count;
205 VikLayerFuncCreate create;
206 VikLayerFuncRealize realize;
207 VikLayerFuncPostRead post_read;
208 VikLayerFuncFree free;
210 VikLayerFuncProperties properties;
211 VikLayerFuncDraw draw;
212 VikLayerFuncChangeCoordMode change_coord_mode;
214 VikLayerFuncAddMenuItems add_menu_items;
215 VikLayerFuncSublayerAddMenuItems sublayer_add_menu_items;
216 VikLayerFuncSublayerRenameRequest sublayer_rename_request;
217 VikLayerFuncSublayerToggleVisible sublayer_toggle_visible;
219 VikLayerFuncCopy copy;
222 VikLayerFuncSetParam set_param;
223 VikLayerFuncGetParam get_param;
225 /* for I/O -- extra non-param data like TrwLayer data */
226 VikLayerFuncReadFileData read_file_data;
227 VikLayerFuncWriteFileData write_file_data;
229 VikLayerFuncCopyItem copy_item;
230 VikLayerFuncPasteItem paste_item;
231 VikLayerFuncFreeCopiedItem free_copied_item;
233 VikLayerFuncDragDropRequest drag_drop_request;
236 VikLayerInterface *vik_layer_get_interface ( gint type );
239 void vik_layer_init ( VikLayer *vl, gint type );
240 void vik_layer_draw ( VikLayer *l, gpointer data );
241 void vik_layer_change_coord_mode ( VikLayer *l, VikCoordMode mode );
242 void vik_layer_rename ( VikLayer *l, const gchar *new_name );
243 void vik_layer_rename_no_copy ( VikLayer *l, gchar *new_name );
245 gboolean vik_layer_set_param (VikLayer *layer, guint16 id, VikLayerParamData data, gpointer vp);
247 void vik_layer_emit_update ( VikLayer *vl );
250 void vik_layer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp );
251 VikLayer *vik_layer_create ( gint type, gpointer vp, GtkWindow *w, gboolean interactive );
252 gboolean vik_layer_properties ( VikLayer *layer, gpointer vp );
254 void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter * layer_iter );
255 void vik_layer_post_read ( VikLayer *layer, gpointer vp );
257 gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
259 VikLayer *vik_layer_copy ( VikLayer *vl, gpointer vp );
261 const gchar *vik_layer_sublayer_rename_request ( VikLayer *l, const gchar *newname, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
263 gboolean vik_layer_sublayer_toggle_visible ( VikLayer *l, gint subtype, gpointer sublayer );
265 /* TODO: put in layerspanel */
266 GdkPixbuf *vik_layer_load_icon ( gint type );