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
21 #ifndef _VIKING_LAYER_H
22 #define _VIKING_LAYER_H
27 #include <gdk-pixbuf/gdk-pixdata.h>
29 #include "vikwindow.h"
30 #include "viktreeview.h"
31 #include "vikviewport.h"
33 #define VIK_LAYER_TYPE (vik_layer_get_type ())
34 #define VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_LAYER_TYPE, VikLayer))
35 #define VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_LAYER_TYPE, VikLayerClass))
36 #define IS_VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), VIK_LAYER_TYPE))
37 #define IS_VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), VIK_LAYER_TYPE))
39 typedef struct _VikLayer VikLayer;
40 typedef struct _VikLayerClass VikLayerClass;
44 GObjectClass object_class;
45 void (* update) (VikLayer *vl);
48 GType vik_layer_get_type ();
56 VikTreeview *vt; /* simply a reference */
59 /* for explicit "polymorphism" (function type switching) */
66 VIK_LAYER_AGGREGATE = 0,
77 VIK_LAYER_TOOL_IGNORED=0,
79 VIK_LAYER_TOOL_ACK_REDRAW_ABOVE,
80 VIK_LAYER_TOOL_ACK_REDRAW_ALL,
81 VIK_LAYER_TOOL_ACK_REDRAW_IF_VISIBLE
82 } VikLayerToolFuncStatus;
84 /* gpointer is tool-specific state created in the constructor */
85 typedef gpointer (*VikToolConstructorFunc) (VikWindow *, VikViewport *);
86 typedef void (*VikToolDestructorFunc) (gpointer);
87 typedef VikLayerToolFuncStatus (*VikToolMouseFunc) (VikLayer *, GdkEventButton *, gpointer);
88 typedef void (*VikToolActivationFunc) (VikLayer *, gpointer);
90 typedef struct _VikToolInterface VikToolInterface;
91 struct _VikToolInterface {
93 VikToolConstructorFunc create;
94 VikToolDestructorFunc destroy;
95 VikToolActivationFunc activate;
96 VikToolActivationFunc deactivate;
97 VikToolMouseFunc click;
98 VikToolMouseFunc move;
99 VikToolMouseFunc release;
100 const GdkPixdata *cursor;
103 /* Parameters (for I/O and Properties) */
121 gpointer widget_data;
122 gpointer extra_widget_data;
126 VIK_LAYER_NOT_IN_PROPERTIES=-2,
127 VIK_LAYER_GROUP_NONE=-1
131 VIK_LAYER_WIDGET_CHECKBUTTON=0,
132 VIK_LAYER_WIDGET_RADIOGROUP,
133 VIK_LAYER_WIDGET_RADIOGROUP_STATIC,
134 VIK_LAYER_WIDGET_SPINBUTTON,
135 VIK_LAYER_WIDGET_ENTRY,
136 VIK_LAYER_WIDGET_FILEENTRY,
137 VIK_LAYER_WIDGET_HSCALE,
138 VIK_LAYER_WIDGET_COLOR,
139 VIK_LAYER_WIDGET_COMBOBOX,
140 VIK_LAYER_WIDGET_FILELIST,
148 } VikLayerParamScale;
152 VIK_LAYER_PARAM_DOUBLE=1,
153 VIK_LAYER_PARAM_UINT,
155 VIK_LAYER_PARAM_STRING,
156 VIK_LAYER_PARAM_BOOLEAN,
157 VIK_LAYER_PARAM_COLOR,
159 /* NOTE: string layer works auniquely: data.sl should NOT be free'd when
160 * the internals call get_param -- i.e. it should be managed w/in the layer.
161 * The value passed by the internals into set_param should also be managed
162 * by the layer -- i.e. free'd by the layer.
165 VIK_LAYER_PARAM_STRING_LIST,
168 /* layer interface functions */
170 /* Create a new layer of a certain type. Should be filled with defaults */
171 typedef VikLayer * (*VikLayerFuncCreate) (VikViewport *);
173 /* normally only needed for layers with sublayers. This is called when they
174 * are added to the treeview so they can add sublayers to the treeview. */
175 typedef void (*VikLayerFuncRealize) (VikLayer *,VikTreeview *,GtkTreeIter *);
177 /* rarely used, this is called after a read operation or properties box is run.
178 * usually used to create GC's that depend on params,
179 * but GC's can also be created from create() or set_param() */
180 typedef void (*VikLayerFuncPostRead) (VikLayer *,VikViewport *vp,gboolean from_file);
182 typedef void (*VikLayerFuncFree) (VikLayer *);
184 /* do _not_ use this unless absolutely neccesary. Use the dynamic properties (see coordlayer for example)
185 * returns TRUE if OK was pressed */
186 typedef gboolean (*VikLayerFuncProperties) (VikLayer *,VikViewport *);
188 typedef void (*VikLayerFuncDraw) (VikLayer *,VikViewport *);
189 typedef void (*VikLayerFuncChangeCoordMode) (VikLayer *,VikCoordMode);
191 typedef void (*VikLayerFuncSetMenuItemsSelection) (VikLayer *,guint16);
192 typedef guint16 (*VikLayerFuncGetMenuItemsSelection) (VikLayer *);
193 typedef void (*VikLayerFuncAddMenuItems) (VikLayer *,GtkMenu *,gpointer); /* gpointer is a VikLayersPanel */
194 typedef gboolean (*VikLayerFuncSublayerAddMenuItems) (VikLayer *,GtkMenu *,gpointer, /* first gpointer is a VikLayersPanel */
195 gint,gpointer,GtkTreeIter *);
196 typedef const gchar * (*VikLayerFuncSublayerRenameRequest) (VikLayer *,const gchar *,gpointer,
197 gint,VikViewport *,GtkTreeIter *); /* first gpointer is a VikLayersPanel */
198 typedef gboolean (*VikLayerFuncSublayerToggleVisible) (VikLayer *,gint,gpointer);
200 typedef void (*VikLayerFuncMarshall) (VikLayer *, guint8 **, gint *);
201 typedef VikLayer * (*VikLayerFuncUnmarshall) (guint8 *, gint, VikViewport *);
203 /* returns TRUE if needs to redraw due to changed param */
204 typedef gboolean (*VikLayerFuncSetParam) (VikLayer *, guint16, VikLayerParamData, VikViewport *);
206 typedef VikLayerParamData
207 (*VikLayerFuncGetParam) (VikLayer *, guint16);
209 typedef void (*VikLayerFuncReadFileData) (VikLayer *, FILE *);
210 typedef void (*VikLayerFuncWriteFileData) (VikLayer *, FILE *);
212 /* item manipulation */
213 typedef void (*VikLayerFuncDeleteItem) (VikLayer *, gint, gpointer);
214 /* layer, subtype, pointer to sub-item */
215 typedef void (*VikLayerFuncCopyItem) (VikLayer *, gint, gpointer, guint8 **, guint *);
216 /* layer, subtype, pointer to sub-item, return pointer, return len */
217 typedef gboolean (*VikLayerFuncPasteItem) (VikLayer *, gint, guint8 *, guint);
218 typedef void (*VikLayerFuncFreeCopiedItem) (gint, gpointer);
220 /* treeview drag and drop method. called on the destination layer. it is given a source and destination layer,
221 * and the source and destination iters in the treeview.
223 typedef void (*VikLayerFuncDragDropRequest) (VikLayer *, VikLayer *, GtkTreeIter *, GtkTreePath *);
226 VIK_MENU_ITEM_PROPERTY=1,
228 VIK_MENU_ITEM_COPY=4,
229 VIK_MENU_ITEM_PASTE=8,
230 VIK_MENU_ITEM_DELETE=16,
231 VIK_MENU_ITEM_ALL=0xff
232 } VikStdLayerMenuItem;
234 typedef struct _VikLayerInterface VikLayerInterface;
236 /* See vik_layer_* for function parameter names */
237 struct _VikLayerInterface {
239 const GdkPixdata * icon;
241 VikToolInterface * tools;
244 /* for I/O reading to and from .vik files -- params like coordline width, color, etc. */
245 VikLayerParam * params;
246 guint16 params_count;
247 gchar ** params_groups;
248 guint8 params_groups_count;
250 /* menu items to be created */
251 VikStdLayerMenuItem menu_items_selection;
253 VikLayerFuncCreate create;
254 VikLayerFuncRealize realize;
255 VikLayerFuncPostRead post_read;
256 VikLayerFuncFree free;
258 VikLayerFuncProperties properties;
259 VikLayerFuncDraw draw;
260 VikLayerFuncChangeCoordMode change_coord_mode;
262 VikLayerFuncSetMenuItemsSelection set_menu_selection;
263 VikLayerFuncGetMenuItemsSelection get_menu_selection;
265 VikLayerFuncAddMenuItems add_menu_items;
266 VikLayerFuncSublayerAddMenuItems sublayer_add_menu_items;
267 VikLayerFuncSublayerRenameRequest sublayer_rename_request;
268 VikLayerFuncSublayerToggleVisible sublayer_toggle_visible;
270 VikLayerFuncMarshall marshall;
271 VikLayerFuncUnmarshall unmarshall;
274 VikLayerFuncSetParam set_param;
275 VikLayerFuncGetParam get_param;
277 /* for I/O -- extra non-param data like TrwLayer data */
278 VikLayerFuncReadFileData read_file_data;
279 VikLayerFuncWriteFileData write_file_data;
281 VikLayerFuncDeleteItem delete_item;
282 VikLayerFuncCopyItem copy_item;
283 VikLayerFuncPasteItem paste_item;
284 VikLayerFuncFreeCopiedItem free_copied_item;
286 VikLayerFuncDragDropRequest drag_drop_request;
289 VikLayerInterface *vik_layer_get_interface ( gint type );
292 void vik_layer_init ( VikLayer *vl, gint type );
293 void vik_layer_draw ( VikLayer *l, gpointer data );
294 void vik_layer_change_coord_mode ( VikLayer *l, VikCoordMode mode );
295 void vik_layer_rename ( VikLayer *l, const gchar *new_name );
296 void vik_layer_rename_no_copy ( VikLayer *l, gchar *new_name );
297 const gchar *vik_layer_get_name ( VikLayer *l );
299 gboolean vik_layer_set_param (VikLayer *layer, guint16 id, VikLayerParamData data, gpointer vp);
301 void vik_layer_emit_update ( VikLayer *vl );
304 void vik_layer_set_menu_items_selection(VikLayer *l, guint16 selection);
305 guint16 vik_layer_get_menu_items_selection(VikLayer *l);
306 void vik_layer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp );
307 VikLayer *vik_layer_create ( gint type, gpointer vp, GtkWindow *w, gboolean interactive );
308 gboolean vik_layer_properties ( VikLayer *layer, gpointer vp );
310 void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter * layer_iter );
311 void vik_layer_post_read ( VikLayer *layer, VikViewport *vp, gboolean from_file );
313 gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
315 VikLayer *vik_layer_copy ( VikLayer *vl, gpointer vp );
316 void vik_layer_marshall ( VikLayer *vl, guint8 **data, gint *len );
317 VikLayer *vik_layer_unmarshall ( guint8 *data, gint len, VikViewport *vvp );
318 void vik_layer_marshall_params ( VikLayer *vl, guint8 **data, gint *len );
319 void vik_layer_unmarshall_params ( VikLayer *vl, guint8 *data, gint len, VikViewport *vvp );
321 const gchar *vik_layer_sublayer_rename_request ( VikLayer *l, const gchar *newname, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
323 gboolean vik_layer_sublayer_toggle_visible ( VikLayer *l, gint subtype, gpointer sublayer );
325 /* TODO: put in layerspanel */
326 GdkPixbuf *vik_layer_load_icon ( gint type );
328 VikLayer *vik_layer_get_and_reset_trigger();
329 void vik_layer_emit_update_secondary ( VikLayer *vl ); /* to be called by aggregate layer only. doesn't set the trigger */
330 void vik_layer_emit_update_although_invisible ( VikLayer *vl );
332 GdkCursor *vik_layer_get_tool_cursor ( gint layer_id, gint tool_id );
333 void vik_layer_cursors_init();
334 void vik_layer_cursors_uninit();