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 "uibuilder.h"
30 #include "vikwindow.h"
31 #include "viktreeview.h"
32 #include "vikviewport.h"
34 #define VIK_LAYER_TYPE (vik_layer_get_type ())
35 #define VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_LAYER_TYPE, VikLayer))
36 #define VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_LAYER_TYPE, VikLayerClass))
37 #define IS_VIK_LAYER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), VIK_LAYER_TYPE))
38 #define IS_VIK_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), VIK_LAYER_TYPE))
40 typedef struct _VikLayer VikLayer;
41 typedef struct _VikLayerClass VikLayerClass;
45 GObjectClass object_class;
46 void (* update) (VikLayer *vl);
49 GType vik_layer_get_type ();
57 VikTreeview *vt; /* simply a reference */
60 /* for explicit "polymorphism" (function type switching) */
67 VIK_LAYER_AGGREGATE = 0,
77 /* I think most of these are ignored,
78 * returning GRAB_FOCUS grabs the focus for mouse move,
79 * mouse click, release always grabs focus. Focus allows key presses
81 * It used to be that, if ignored, Viking could look for other layers.
82 * this was useful for clicking a way/trackpoint in any layer,
83 * if no layer was selected (find way/trackpoint)
86 VIK_LAYER_TOOL_IGNORED=0,
88 VIK_LAYER_TOOL_ACK_REDRAW_ABOVE,
89 VIK_LAYER_TOOL_ACK_REDRAW_ALL,
90 VIK_LAYER_TOOL_ACK_REDRAW_IF_VISIBLE,
91 VIK_LAYER_TOOL_ACK_GRAB_FOCUS, /* only for move */
92 } VikLayerToolFuncStatus;
94 /* gpointer is tool-specific state created in the constructor */
95 typedef gpointer (*VikToolConstructorFunc) (VikWindow *, VikViewport *);
96 typedef void (*VikToolDestructorFunc) (gpointer);
97 typedef VikLayerToolFuncStatus (*VikToolMouseFunc) (VikLayer *, GdkEventButton *, gpointer);
98 typedef VikLayerToolFuncStatus (*VikToolMouseMoveFunc) (VikLayer *, GdkEventMotion *, gpointer);
99 typedef void (*VikToolActivationFunc) (VikLayer *, gpointer);
100 typedef gboolean (*VikToolKeyFunc) (VikLayer *, GdkEventKey *, gpointer);
102 typedef struct _VikToolInterface VikToolInterface;
103 struct _VikToolInterface {
105 VikToolConstructorFunc create;
106 VikToolDestructorFunc destroy;
107 VikToolActivationFunc activate;
108 VikToolActivationFunc deactivate;
109 VikToolMouseFunc click;
110 VikToolMouseMoveFunc move;
111 VikToolMouseFunc release;
112 VikToolKeyFunc key_press; /* return FALSE if we don't use the key press -- should return AFLSE most of the time if we want any shortcuts / UI keybindings to work! use sparingly. */
113 GdkCursorType cursor_type;
114 const GdkPixdata *cursor_data;
115 const GdkCursor *cursor;
118 /* Parameters (for I/O and Properties) */
119 /* --> moved to uibuilder.h */
122 /* layer interface functions */
124 /* Create a new layer of a certain type. Should be filled with defaults */
125 typedef VikLayer * (*VikLayerFuncCreate) (VikViewport *);
127 /* normally only needed for layers with sublayers. This is called when they
128 * are added to the treeview so they can add sublayers to the treeview. */
129 typedef void (*VikLayerFuncRealize) (VikLayer *,VikTreeview *,GtkTreeIter *);
131 /* rarely used, this is called after a read operation or properties box is run.
132 * usually used to create GC's that depend on params,
133 * but GC's can also be created from create() or set_param() */
134 typedef void (*VikLayerFuncPostRead) (VikLayer *,VikViewport *vp,gboolean from_file);
136 typedef void (*VikLayerFuncFree) (VikLayer *);
138 /* do _not_ use this unless absolutely neccesary. Use the dynamic properties (see coordlayer for example)
139 * returns TRUE if OK was pressed */
140 typedef gboolean (*VikLayerFuncProperties) (VikLayer *,VikViewport *);
142 typedef void (*VikLayerFuncDraw) (VikLayer *,VikViewport *);
143 typedef void (*VikLayerFuncChangeCoordMode) (VikLayer *,VikCoordMode);
145 typedef void (*VikLayerFuncSetMenuItemsSelection) (VikLayer *,guint16);
146 typedef guint16 (*VikLayerFuncGetMenuItemsSelection) (VikLayer *);
148 typedef void (*VikLayerFuncAddMenuItems) (VikLayer *,GtkMenu *,gpointer); /* gpointer is a VikLayersPanel */
149 typedef gboolean (*VikLayerFuncSublayerAddMenuItems) (VikLayer *,GtkMenu *,gpointer, /* first gpointer is a VikLayersPanel */
150 gint,gpointer,GtkTreeIter *);
151 typedef const gchar * (*VikLayerFuncSublayerRenameRequest) (VikLayer *,const gchar *,gpointer,
152 gint,VikViewport *,GtkTreeIter *); /* first gpointer is a VikLayersPanel */
153 typedef gboolean (*VikLayerFuncSublayerToggleVisible) (VikLayer *,gint,gpointer);
154 typedef const gchar * (*VikLayerFuncSublayerTooltip) (VikLayer *,gint,gpointer);
155 typedef const gchar * (*VikLayerFuncLayerTooltip) (VikLayer *);
157 typedef void (*VikLayerFuncMarshall) (VikLayer *, guint8 **, gint *);
158 typedef VikLayer * (*VikLayerFuncUnmarshall) (guint8 *, gint, VikViewport *);
160 /* returns TRUE if needs to redraw due to changed param */
161 /* in parameter gboolean denotes if for file I/O, as opposed to display/cut/copy etc... operations */
162 typedef gboolean (*VikLayerFuncSetParam) (VikLayer *, guint16, VikLayerParamData, VikViewport *, gboolean);
164 /* in parameter gboolean denotes if for file I/O, as opposed to display/cut/copy etc... operations */
165 typedef VikLayerParamData
166 (*VikLayerFuncGetParam) (VikLayer *, guint16, gboolean);
168 typedef void (*VikLayerFuncReadFileData) (VikLayer *, FILE *);
169 typedef void (*VikLayerFuncWriteFileData) (VikLayer *, FILE *);
171 /* item manipulation */
172 typedef void (*VikLayerFuncDeleteItem) (VikLayer *, gint, gpointer);
173 /* layer, subtype, pointer to sub-item */
174 typedef void (*VikLayerFuncCopyItem) (VikLayer *, gint, gpointer, guint8 **, guint *);
175 /* layer, subtype, pointer to sub-item, return pointer, return len */
176 typedef gboolean (*VikLayerFuncPasteItem) (VikLayer *, gint, guint8 *, guint);
177 typedef void (*VikLayerFuncFreeCopiedItem) (gint, gpointer);
179 /* treeview drag and drop method. called on the destination layer. it is given a source and destination layer,
180 * and the source and destination iters in the treeview.
182 typedef void (*VikLayerFuncDragDropRequest) (VikLayer *, VikLayer *, GtkTreeIter *, GtkTreePath *);
185 VIK_MENU_ITEM_PROPERTY=1,
187 VIK_MENU_ITEM_COPY=4,
188 VIK_MENU_ITEM_PASTE=8,
189 VIK_MENU_ITEM_DELETE=16,
190 VIK_MENU_ITEM_ALL=0xff
191 } VikStdLayerMenuItem;
193 typedef struct _VikLayerInterface VikLayerInterface;
195 /* See vik_layer_* for function parameter names */
196 struct _VikLayerInterface {
198 const GdkPixdata * icon;
200 VikToolInterface * tools;
203 /* for I/O reading to and from .vik files -- params like coordline width, color, etc. */
204 VikLayerParam * params;
205 guint16 params_count;
206 gchar ** params_groups;
207 guint8 params_groups_count;
209 /* menu items to be created */
210 VikStdLayerMenuItem menu_items_selection;
212 VikLayerFuncCreate create;
213 VikLayerFuncRealize realize;
214 VikLayerFuncPostRead post_read;
215 VikLayerFuncFree free;
217 VikLayerFuncProperties properties;
218 VikLayerFuncDraw draw;
219 VikLayerFuncChangeCoordMode change_coord_mode;
221 VikLayerFuncSetMenuItemsSelection set_menu_selection;
222 VikLayerFuncGetMenuItemsSelection get_menu_selection;
224 VikLayerFuncAddMenuItems add_menu_items;
225 VikLayerFuncSublayerAddMenuItems sublayer_add_menu_items;
226 VikLayerFuncSublayerRenameRequest sublayer_rename_request;
227 VikLayerFuncSublayerToggleVisible sublayer_toggle_visible;
228 VikLayerFuncSublayerTooltip sublayer_tooltip;
229 VikLayerFuncLayerTooltip layer_tooltip;
231 VikLayerFuncMarshall marshall;
232 VikLayerFuncUnmarshall unmarshall;
235 VikLayerFuncSetParam set_param;
236 VikLayerFuncGetParam get_param;
238 /* for I/O -- extra non-param data like TrwLayer data */
239 VikLayerFuncReadFileData read_file_data;
240 VikLayerFuncWriteFileData write_file_data;
242 VikLayerFuncDeleteItem delete_item;
243 VikLayerFuncCopyItem copy_item;
244 VikLayerFuncPasteItem paste_item;
245 VikLayerFuncFreeCopiedItem free_copied_item;
247 VikLayerFuncDragDropRequest drag_drop_request;
250 VikLayerInterface *vik_layer_get_interface ( gint type );
253 void vik_layer_init ( VikLayer *vl, gint type );
254 void vik_layer_draw ( VikLayer *l, gpointer data );
255 void vik_layer_change_coord_mode ( VikLayer *l, VikCoordMode mode );
256 void vik_layer_rename ( VikLayer *l, const gchar *new_name );
257 void vik_layer_rename_no_copy ( VikLayer *l, gchar *new_name );
258 const gchar *vik_layer_get_name ( VikLayer *l );
260 gboolean vik_layer_set_param (VikLayer *layer, guint16 id, VikLayerParamData data, gpointer vp, gboolean is_file_operation);
262 void vik_layer_emit_update ( VikLayer *vl );
265 void vik_layer_set_menu_items_selection(VikLayer *l, guint16 selection);
266 guint16 vik_layer_get_menu_items_selection(VikLayer *l);
267 void vik_layer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp );
268 VikLayer *vik_layer_create ( gint type, gpointer vp, GtkWindow *w, gboolean interactive );
269 gboolean vik_layer_properties ( VikLayer *layer, gpointer vp );
271 void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter * layer_iter );
272 void vik_layer_post_read ( VikLayer *layer, VikViewport *vp, gboolean from_file );
274 gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
276 VikLayer *vik_layer_copy ( VikLayer *vl, gpointer vp );
277 void vik_layer_marshall ( VikLayer *vl, guint8 **data, gint *len );
278 VikLayer *vik_layer_unmarshall ( guint8 *data, gint len, VikViewport *vvp );
279 void vik_layer_marshall_params ( VikLayer *vl, guint8 **data, gint *len );
280 void vik_layer_unmarshall_params ( VikLayer *vl, guint8 *data, gint len, VikViewport *vvp );
282 const gchar *vik_layer_sublayer_rename_request ( VikLayer *l, const gchar *newname, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
284 gboolean vik_layer_sublayer_toggle_visible ( VikLayer *l, gint subtype, gpointer sublayer );
286 const gchar* vik_layer_sublayer_tooltip ( VikLayer *l, gint subtype, gpointer sublayer );
288 const gchar* vik_layer_layer_tooltip ( VikLayer *l );
290 /* TODO: put in layerspanel */
291 GdkPixbuf *vik_layer_load_icon ( gint type );
293 VikLayer *vik_layer_get_and_reset_trigger();
294 void vik_layer_emit_update_secondary ( VikLayer *vl ); /* to be called by aggregate layer only. doesn't set the trigger */
295 void vik_layer_emit_update_although_invisible ( VikLayer *vl );