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
22 #include "vikwindow.h"
24 #ifndef _VIKING_LAYER_H
25 #define _VIKING_LAYER_H
27 #define VIK_LAYER_TYPE (vik_layer_get_type ())
28 #define VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_LAYER_TYPE, VikLayer))
29 #define VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_LAYER_TYPE, VikLayerClass))
30 #define IS_VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), VIK_LAYER_TYPE))
31 #define IS_VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), VIK_LAYER_TYPE))
33 typedef struct _VikLayer VikLayer;
34 typedef struct _VikLayerClass VikLayerClass;
38 GObjectClass object_class;
39 void (* update) (VikLayer *vl);
42 GType vik_layer_get_type ();
50 VikTreeview *vt; /* simply a refernce */
53 /* for explicit "polymorphism" (function type switching) */
60 VIK_LAYER_AGGREGATE = 0,
70 VIK_LAYER_TOOL_IGNORED=0,
72 VIK_LAYER_TOOL_ACK_REDRAW_ABOVE,
73 VIK_LAYER_TOOL_ACK_REDRAW_ALL,
74 VIK_LAYER_TOOL_ACK_REDRAW_IF_VISIBLE
75 } VikLayerToolFuncStatus;
77 /* gpointer is tool-specific state created in the constructor */
78 typedef gpointer (*VikToolConstructorFunc) (VikWindow *, VikViewport *);
79 typedef void (*VikToolDestructorFunc) (gpointer);
80 typedef VikLayerToolFuncStatus (*VikToolMouseFunc) (VikLayer *, GdkEventButton *, gpointer);
81 typedef void (*VikToolActivationFunc) (VikLayer *, gpointer);
83 typedef struct _VikToolInterface VikToolInterface;
84 struct _VikToolInterface {
86 VikToolConstructorFunc create;
87 VikToolDestructorFunc destroy;
88 VikToolActivationFunc activate;
89 VikToolActivationFunc deactivate;
90 VikToolMouseFunc click;
91 VikToolMouseFunc move;
92 VikToolMouseFunc release;
95 /* Parameters (for I/O and Properties) */
112 const gpointer widget_data;
113 const gpointer extra_widget_data;
117 VIK_LAYER_NOT_IN_PROPERTIES=-2,
118 VIK_LAYER_GROUP_NONE=-1
122 VIK_LAYER_WIDGET_CHECKBUTTON=0,
123 VIK_LAYER_WIDGET_RADIOGROUP,
124 VIK_LAYER_WIDGET_SPINBUTTON,
125 VIK_LAYER_WIDGET_ENTRY,
126 VIK_LAYER_WIDGET_FILEENTRY,
127 VIK_LAYER_WIDGET_HSCALE,
128 VIK_LAYER_WIDGET_COLOR,
129 VIK_LAYER_WIDGET_COMBOBOX,
137 } VikLayerParamScale;
141 VIK_LAYER_PARAM_DOUBLE=1,
142 VIK_LAYER_PARAM_UINT,
144 VIK_LAYER_PARAM_STRING,
145 VIK_LAYER_PARAM_BOOLEAN,
146 VIK_LAYER_PARAM_COLOR,
149 /* layer interface functions */
151 /* Create a new layer of a certain type. Should be filled with defaults */
152 typedef VikLayer * (*VikLayerFuncCreate) (VikViewport *);
154 /* normally only needed for layers with sublayers. This is called when they
155 * are added to the treeview so they can add sublayers to the treeview. */
156 typedef void (*VikLayerFuncRealize) (VikLayer *,VikTreeview *,GtkTreeIter *);
158 /* rarely used, this is called after a read operation or properties box is run.
159 * usually used to create GC's that depend on params,
160 * but GC's can also be created from create() or set_param() */
161 typedef void (*VikLayerFuncPostRead) (VikLayer *,gpointer vp);
163 typedef void (*VikLayerFuncFree) (VikLayer *);
165 /* do _not_ use this unless absolutely neccesary. Use the dynamic properties (see coordlayer for example)
166 * returns TRUE if OK was pressed */
167 typedef gboolean (*VikLayerFuncProperties) (VikLayer *,VikViewport *); /* gpointer is a VikViewport */
169 typedef void (*VikLayerFuncDraw) (VikLayer *,VikViewport *);
170 typedef void (*VikLayerFuncChangeCoordMode) (VikLayer *,VikCoordMode);
172 typedef void (*VikLayerFuncAddMenuItems) (VikLayer *,GtkMenu *,gpointer); /* gpointer is a VikLayersPanel */
173 typedef gboolean (*VikLayerFuncSublayerAddMenuItems) (VikLayer *,GtkMenu *,gpointer, /* first gpointer is a VikLayersPanel */
174 gint,gpointer,GtkTreeIter *);
175 typedef const gchar * (*VikLayerFuncSublayerRenameRequest) (VikLayer *,const gchar *,gpointer,
176 gint,VikViewport *,GtkTreeIter *); /* first gpointer is a VikLayersPanel */
177 typedef gboolean (*VikLayerFuncSublayerToggleVisible) (VikLayer *,gint,gpointer);
179 typedef VikLayer * (*VikLayerFuncCopy) (VikLayer *,VikViewport *);
180 typedef void (*VikLayerFuncMarshall) (VikLayer *, guint8 **, gint *);
181 typedef VikLayer * (*VikLayerFuncUnmarshall) (guint8 *, gint, VikViewport *);
183 /* returns TRUE if needs to redraw due to changed param */
184 typedef gboolean (*VikLayerFuncSetParam) (VikLayer *, guint16, VikLayerParamData, VikViewport *);
186 typedef VikLayerParamData
187 (*VikLayerFuncGetParam) (VikLayer *, guint16);
189 typedef void (*VikLayerFuncReadFileData) (VikLayer *, FILE *);
190 typedef void (*VikLayerFuncWriteFileData) (VikLayer *, FILE *);
192 /* item manipulation */
193 typedef void (*VikLayerFuncDeleteItem) (VikLayer *, gint, gpointer);
194 /* layer, subtype, pointer to sub-item */
195 typedef void (*VikLayerFuncCopyItem) (VikLayer *, gint, gpointer, guint8 **, guint *);
196 /* layer, subtype, pointer to sub-item, return pointer, return len */
197 typedef gboolean (*VikLayerFuncPasteItem) (VikLayer *, gint, guint8 *, guint);
198 typedef void (*VikLayerFuncFreeCopiedItem) (gint, gpointer);
200 /* treeview drag and drop method. called on the destination layer. it is given a source and destination layer,
201 * and the source and destination iters in the treeview.
203 typedef void (*VikLayerFuncDragDropRequest) (VikLayer *, VikLayer *, GtkTreeIter *, GtkTreePath *);
206 typedef struct _VikLayerInterface VikLayerInterface;
208 /* See vik_layer_* for function parameter names */
209 struct _VikLayerInterface {
211 const GdkPixdata * icon;
213 VikToolInterface * tools;
216 /* for I/O reading to and from .vik files -- params like coordline width, color, etc. */
217 VikLayerParam * params;
218 guint16 params_count;
219 gchar ** params_groups;
220 guint8 params_groups_count;
222 VikLayerFuncCreate create;
223 VikLayerFuncRealize realize;
224 VikLayerFuncPostRead post_read;
225 VikLayerFuncFree free;
227 VikLayerFuncProperties properties;
228 VikLayerFuncDraw draw;
229 VikLayerFuncChangeCoordMode change_coord_mode;
231 VikLayerFuncAddMenuItems add_menu_items;
232 VikLayerFuncSublayerAddMenuItems sublayer_add_menu_items;
233 VikLayerFuncSublayerRenameRequest sublayer_rename_request;
234 VikLayerFuncSublayerToggleVisible sublayer_toggle_visible;
236 VikLayerFuncCopy copy;
237 VikLayerFuncMarshall marshall;
238 VikLayerFuncUnmarshall unmarshall;
241 VikLayerFuncSetParam set_param;
242 VikLayerFuncGetParam get_param;
244 /* for I/O -- extra non-param data like TrwLayer data */
245 VikLayerFuncReadFileData read_file_data;
246 VikLayerFuncWriteFileData write_file_data;
248 VikLayerFuncDeleteItem delete_item;
249 VikLayerFuncCopyItem copy_item;
250 VikLayerFuncPasteItem paste_item;
251 VikLayerFuncFreeCopiedItem free_copied_item;
253 VikLayerFuncDragDropRequest drag_drop_request;
256 VikLayerInterface *vik_layer_get_interface ( gint type );
259 void vik_layer_init ( VikLayer *vl, gint type );
260 void vik_layer_draw ( VikLayer *l, gpointer data );
261 void vik_layer_change_coord_mode ( VikLayer *l, VikCoordMode mode );
262 void vik_layer_rename ( VikLayer *l, const gchar *new_name );
263 void vik_layer_rename_no_copy ( VikLayer *l, gchar *new_name );
265 gboolean vik_layer_set_param (VikLayer *layer, guint16 id, VikLayerParamData data, gpointer vp);
267 void vik_layer_emit_update ( VikLayer *vl );
270 void vik_layer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp );
271 VikLayer *vik_layer_create ( gint type, gpointer vp, GtkWindow *w, gboolean interactive );
272 gboolean vik_layer_properties ( VikLayer *layer, gpointer vp );
274 void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter * layer_iter );
275 void vik_layer_post_read ( VikLayer *layer, gpointer vp );
277 gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
279 VikLayer *vik_layer_copy ( VikLayer *vl, gpointer vp );
280 void vik_layer_marshall ( VikLayer *vl, guint8 **data, gint *len );
281 VikLayer *vik_layer_unmarshall ( guint8 *data, gint len, VikViewport *vvp );
282 void vik_layer_marshall_params ( VikLayer *vl, guint8 **data, gint *len );
283 void vik_layer_unmarshall_params ( VikLayer *vl, guint8 *data, gint len, VikViewport *vvp );
285 const gchar *vik_layer_sublayer_rename_request ( VikLayer *l, const gchar *newname, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
287 gboolean vik_layer_sublayer_toggle_visible ( VikLayer *l, gint subtype, gpointer sublayer );
289 /* TODO: put in layerspanel */
290 GdkPixbuf *vik_layer_load_icon ( gint type );