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,
69 VIK_LAYER_TOOL_IGNORED=0,
71 VIK_LAYER_TOOL_ACK_REDRAW_ABOVE,
72 VIK_LAYER_TOOL_ACK_REDRAW_ALL,
73 VIK_LAYER_TOOL_ACK_REDRAW_IF_VISIBLE
74 } VikLayerToolFuncStatus;
76 /* gpointer is tool-specific state created in the constructor */
77 typedef gpointer (*VikToolConstructorFunc) (VikWindow *, VikViewport *);
78 typedef void (*VikToolDestructorFunc) (gpointer);
79 typedef VikLayerToolFuncStatus (*VikToolMouseFunc) (VikLayer *, GdkEventButton *, gpointer);
80 typedef void (*VikToolActivationFunc) (VikLayer *, gpointer);
82 typedef struct _VikToolInterface VikToolInterface;
83 struct _VikToolInterface {
85 VikToolConstructorFunc create;
86 VikToolDestructorFunc destroy;
87 VikToolActivationFunc activate;
88 VikToolActivationFunc deactivate;
89 VikToolMouseFunc click;
90 VikToolMouseFunc move;
91 VikToolMouseFunc release;
94 /* Parameters (for I/O and Properties) */
111 const gpointer widget_data;
112 const gpointer extra_widget_data;
116 VIK_LAYER_NOT_IN_PROPERTIES=-2,
117 VIK_LAYER_GROUP_NONE=-1
121 VIK_LAYER_WIDGET_CHECKBUTTON=0,
122 VIK_LAYER_WIDGET_RADIOGROUP,
123 VIK_LAYER_WIDGET_SPINBUTTON,
124 VIK_LAYER_WIDGET_ENTRY,
125 VIK_LAYER_WIDGET_FILEENTRY,
126 VIK_LAYER_WIDGET_HSCALE,
127 VIK_LAYER_WIDGET_COLOR,
128 VIK_LAYER_WIDGET_COMBOBOX,
136 } VikLayerParamScale;
140 VIK_LAYER_PARAM_DOUBLE=1,
141 VIK_LAYER_PARAM_UINT,
143 VIK_LAYER_PARAM_STRING,
144 VIK_LAYER_PARAM_BOOLEAN,
145 VIK_LAYER_PARAM_COLOR,
148 /* layer interface functions */
150 /* Create a new layer of a certain type. Should be filled with defaults */
151 typedef VikLayer * (*VikLayerFuncCreate) (VikViewport *);
153 /* normally only needed for layers with sublayers. This is called when they
154 * are added to the treeview so they can add sublayers to the treeview. */
155 typedef void (*VikLayerFuncRealize) (VikLayer *,VikTreeview *,GtkTreeIter *);
157 /* rarely used, this is called after a read operation or properties box is run.
158 * usually used to create GC's that depend on params,
159 * but GC's can also be created from create() or set_param() */
160 typedef void (*VikLayerFuncPostRead) (VikLayer *,gpointer vp);
162 typedef void (*VikLayerFuncFree) (VikLayer *);
164 /* do _not_ use this unless absolutely neccesary. Use the dynamic properties (see coordlayer for example)
165 * returns TRUE if OK was pressed */
166 typedef gboolean (*VikLayerFuncProperties) (VikLayer *,VikViewport *); /* gpointer is a VikViewport */
168 typedef void (*VikLayerFuncDraw) (VikLayer *,VikViewport *);
169 typedef void (*VikLayerFuncChangeCoordMode) (VikLayer *,VikCoordMode);
171 typedef void (*VikLayerFuncAddMenuItems) (VikLayer *,GtkMenu *,gpointer); /* gpointer is a VikLayersPanel */
172 typedef gboolean (*VikLayerFuncSublayerAddMenuItems) (VikLayer *,GtkMenu *,gpointer, /* first gpointer is a VikLayersPanel */
173 gint,gpointer,GtkTreeIter *);
174 typedef const gchar * (*VikLayerFuncSublayerRenameRequest) (VikLayer *,const gchar *,gpointer,
175 gint,VikViewport *,GtkTreeIter *); /* first gpointer is a VikLayersPanel */
176 typedef gboolean (*VikLayerFuncSublayerToggleVisible) (VikLayer *,gint,gpointer);
178 typedef VikLayer * (*VikLayerFuncCopy) (VikLayer *,VikViewport *);
179 typedef void (*VikLayerFuncMarshall) (VikLayer *, guint8 **, gint *);
180 typedef VikLayer * (*VikLayerFuncUnmarshall) (guint8 *, gint, VikViewport *);
182 /* returns TRUE if needs to redraw due to changed param */
183 typedef gboolean (*VikLayerFuncSetParam) (VikLayer *, guint16, VikLayerParamData, VikViewport *);
185 typedef VikLayerParamData
186 (*VikLayerFuncGetParam) (VikLayer *, guint16);
188 typedef void (*VikLayerFuncReadFileData) (VikLayer *, FILE *);
189 typedef void (*VikLayerFuncWriteFileData) (VikLayer *, FILE *);
191 /* item manipulation */
192 typedef void (*VikLayerFuncDeleteItem) (VikLayer *, gint, gpointer);
193 /* layer, subtype, pointer to sub-item */
194 typedef void (*VikLayerFuncCopyItem) (VikLayer *, gint, gpointer, guint8 **, guint *);
195 /* layer, subtype, pointer to sub-item, return pointer, return len */
196 typedef gboolean (*VikLayerFuncPasteItem) (VikLayer *, gint, guint8 *, guint);
197 typedef void (*VikLayerFuncFreeCopiedItem) (gint, gpointer);
199 /* treeview drag and drop method. called on the destination layer. it is given a source and destination layer,
200 * and the source and destination iters in the treeview.
202 typedef void (*VikLayerFuncDragDropRequest) (VikLayer *, VikLayer *, GtkTreeIter *, GtkTreePath *);
205 typedef struct _VikLayerInterface VikLayerInterface;
207 /* See vik_layer_* for function parameter names */
208 struct _VikLayerInterface {
210 const GdkPixdata * icon;
212 VikToolInterface * tools;
215 /* for I/O reading to and from .vik files -- params like coordline width, color, etc. */
216 VikLayerParam * params;
217 guint16 params_count;
218 gchar ** params_groups;
219 guint8 params_groups_count;
221 VikLayerFuncCreate create;
222 VikLayerFuncRealize realize;
223 VikLayerFuncPostRead post_read;
224 VikLayerFuncFree free;
226 VikLayerFuncProperties properties;
227 VikLayerFuncDraw draw;
228 VikLayerFuncChangeCoordMode change_coord_mode;
230 VikLayerFuncAddMenuItems add_menu_items;
231 VikLayerFuncSublayerAddMenuItems sublayer_add_menu_items;
232 VikLayerFuncSublayerRenameRequest sublayer_rename_request;
233 VikLayerFuncSublayerToggleVisible sublayer_toggle_visible;
235 VikLayerFuncCopy copy;
236 VikLayerFuncMarshall marshall;
237 VikLayerFuncUnmarshall unmarshall;
240 VikLayerFuncSetParam set_param;
241 VikLayerFuncGetParam get_param;
243 /* for I/O -- extra non-param data like TrwLayer data */
244 VikLayerFuncReadFileData read_file_data;
245 VikLayerFuncWriteFileData write_file_data;
247 VikLayerFuncDeleteItem delete_item;
248 VikLayerFuncCopyItem copy_item;
249 VikLayerFuncPasteItem paste_item;
250 VikLayerFuncFreeCopiedItem free_copied_item;
252 VikLayerFuncDragDropRequest drag_drop_request;
255 VikLayerInterface *vik_layer_get_interface ( gint type );
258 void vik_layer_init ( VikLayer *vl, gint type );
259 void vik_layer_draw ( VikLayer *l, gpointer data );
260 void vik_layer_change_coord_mode ( VikLayer *l, VikCoordMode mode );
261 void vik_layer_rename ( VikLayer *l, const gchar *new_name );
262 void vik_layer_rename_no_copy ( VikLayer *l, gchar *new_name );
264 gboolean vik_layer_set_param (VikLayer *layer, guint16 id, VikLayerParamData data, gpointer vp);
266 void vik_layer_emit_update ( VikLayer *vl );
269 void vik_layer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp );
270 VikLayer *vik_layer_create ( gint type, gpointer vp, GtkWindow *w, gboolean interactive );
271 gboolean vik_layer_properties ( VikLayer *layer, gpointer vp );
273 void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter * layer_iter );
274 void vik_layer_post_read ( VikLayer *layer, gpointer vp );
276 gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
278 VikLayer *vik_layer_copy ( VikLayer *vl, gpointer vp );
279 void vik_layer_marshall ( VikLayer *vl, guint8 **data, gint *len );
280 VikLayer *vik_layer_unmarshall ( guint8 *data, gint len, VikViewport *vvp );
281 void vik_layer_marshall_params ( VikLayer *vl, guint8 **data, gint *len );
282 void vik_layer_unmarshall_params ( VikLayer *vl, guint8 *data, gint len, VikViewport *vvp );
284 const gchar *vik_layer_sublayer_rename_request ( VikLayer *l, const gchar *newname, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
286 gboolean vik_layer_sublayer_toggle_visible ( VikLayer *l, gint subtype, gpointer sublayer );
288 /* TODO: put in layerspanel */
289 GdkPixbuf *vik_layer_load_icon ( gint type );