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 {
104 GtkRadioActionEntry radioActionEntry;
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 FALSE most of the time if we want any shortcuts / UI keybindings to work! use sparingly. */
113 gboolean pan_handler; // Call click & release funtions even when 'Pan Mode' is on
114 GdkCursorType cursor_type;
115 const GdkPixdata *cursor_data;
116 const GdkCursor *cursor;
119 /* Parameters (for I/O and Properties) */
120 /* --> moved to uibuilder.h */
123 /* layer interface functions */
125 /* Create a new layer of a certain type. Should be filled with defaults */
126 typedef VikLayer * (*VikLayerFuncCreate) (VikViewport *);
128 /* normally only needed for layers with sublayers. This is called when they
129 * are added to the treeview so they can add sublayers to the treeview. */
130 typedef void (*VikLayerFuncRealize) (VikLayer *,VikTreeview *,GtkTreeIter *);
132 /* rarely used, this is called after a read operation or properties box is run.
133 * usually used to create GC's that depend on params,
134 * but GC's can also be created from create() or set_param() */
135 typedef void (*VikLayerFuncPostRead) (VikLayer *,VikViewport *vp,gboolean from_file);
137 typedef void (*VikLayerFuncFree) (VikLayer *);
139 /* do _not_ use this unless absolutely neccesary. Use the dynamic properties (see coordlayer for example)
140 * returns TRUE if OK was pressed */
141 typedef gboolean (*VikLayerFuncProperties) (VikLayer *,VikViewport *);
143 typedef void (*VikLayerFuncDraw) (VikLayer *,VikViewport *);
144 typedef void (*VikLayerFuncChangeCoordMode) (VikLayer *,VikCoordMode);
146 typedef void (*VikLayerFuncSetMenuItemsSelection) (VikLayer *,guint16);
147 typedef guint16 (*VikLayerFuncGetMenuItemsSelection) (VikLayer *);
149 typedef void (*VikLayerFuncAddMenuItems) (VikLayer *,GtkMenu *,gpointer); /* gpointer is a VikLayersPanel */
150 typedef gboolean (*VikLayerFuncSublayerAddMenuItems) (VikLayer *,GtkMenu *,gpointer, /* first gpointer is a VikLayersPanel */
151 gint,gpointer,GtkTreeIter *,VikViewport *);
152 typedef const gchar * (*VikLayerFuncSublayerRenameRequest) (VikLayer *,const gchar *,gpointer,
153 gint,VikViewport *,GtkTreeIter *); /* first gpointer is a VikLayersPanel */
154 typedef gboolean (*VikLayerFuncSublayerToggleVisible) (VikLayer *,gint,gpointer);
155 typedef const gchar * (*VikLayerFuncSublayerTooltip) (VikLayer *,gint,gpointer);
156 typedef const gchar * (*VikLayerFuncLayerTooltip) (VikLayer *);
157 typedef gboolean (*VikLayerFuncLayerSelected) (VikLayer *,gint,gpointer,gint,gpointer); /* 2nd gpointer is a VikLayersPanel */
159 typedef void (*VikLayerFuncMarshall) (VikLayer *, guint8 **, gint *);
160 typedef VikLayer * (*VikLayerFuncUnmarshall) (guint8 *, gint, VikViewport *);
162 /* returns TRUE if needs to redraw due to changed param */
163 /* in parameter gboolean denotes if for file I/O, as opposed to display/cut/copy etc... operations */
164 typedef gboolean (*VikLayerFuncSetParam) (VikLayer *, guint16, VikLayerParamData, VikViewport *, gboolean);
166 /* in parameter gboolean denotes if for file I/O, as opposed to display/cut/copy etc... operations */
167 typedef VikLayerParamData
168 (*VikLayerFuncGetParam) (VikLayer *, guint16, gboolean);
170 typedef gboolean (*VikLayerFuncReadFileData) (VikLayer *, FILE *); // Should report success or failure
171 typedef void (*VikLayerFuncWriteFileData) (VikLayer *, FILE *);
173 /* item manipulation */
174 typedef void (*VikLayerFuncDeleteItem) (VikLayer *, gint, gpointer);
175 /* layer, subtype, pointer to sub-item */
176 typedef void (*VikLayerFuncCutItem) (VikLayer *, gint, gpointer);
177 typedef void (*VikLayerFuncCopyItem) (VikLayer *, gint, gpointer, guint8 **, guint *);
178 /* layer, subtype, pointer to sub-item, return pointer, return len */
179 typedef gboolean (*VikLayerFuncPasteItem) (VikLayer *, gint, guint8 *, guint);
180 typedef void (*VikLayerFuncFreeCopiedItem) (gint, gpointer);
182 /* treeview drag and drop method. called on the destination layer. it is given a source and destination layer,
183 * and the source and destination iters in the treeview.
185 typedef void (*VikLayerFuncDragDropRequest) (VikLayer *, VikLayer *, GtkTreeIter *, GtkTreePath *);
187 typedef gboolean (*VikLayerFuncSelectClick) (VikLayer *, GdkEventButton *, VikViewport *, tool_ed_t*);
188 typedef gboolean (*VikLayerFuncSelectMove) (VikLayer *, GdkEventButton *, VikViewport *, tool_ed_t*);
189 typedef gboolean (*VikLayerFuncSelectRelease) (VikLayer *, GdkEventButton *, VikViewport *, tool_ed_t*);
190 typedef gboolean (*VikLayerFuncSelectedViewportMenu) (VikLayer *, GdkEventButton *, VikViewport *);
193 VIK_MENU_ITEM_PROPERTY=1,
195 VIK_MENU_ITEM_COPY=4,
196 VIK_MENU_ITEM_PASTE=8,
197 VIK_MENU_ITEM_DELETE=16,
198 VIK_MENU_ITEM_ALL=0xff
199 } VikStdLayerMenuItem;
201 typedef struct _VikLayerInterface VikLayerInterface;
203 /* See vik_layer_* for function parameter names */
204 struct _VikLayerInterface {
206 const gchar * accelerator;
207 const GdkPixdata * icon;
209 VikToolInterface * tools;
212 /* for I/O reading to and from .vik files -- params like coordline width, color, etc. */
213 VikLayerParam * params;
214 guint16 params_count;
215 gchar ** params_groups;
216 guint8 params_groups_count;
218 /* menu items to be created */
219 VikStdLayerMenuItem menu_items_selection;
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 VikLayerFuncSetMenuItemsSelection set_menu_selection;
231 VikLayerFuncGetMenuItemsSelection get_menu_selection;
233 VikLayerFuncAddMenuItems add_menu_items;
234 VikLayerFuncSublayerAddMenuItems sublayer_add_menu_items;
235 VikLayerFuncSublayerRenameRequest sublayer_rename_request;
236 VikLayerFuncSublayerToggleVisible sublayer_toggle_visible;
237 VikLayerFuncSublayerTooltip sublayer_tooltip;
238 VikLayerFuncLayerTooltip layer_tooltip;
239 VikLayerFuncLayerSelected layer_selected;
241 VikLayerFuncMarshall marshall;
242 VikLayerFuncUnmarshall unmarshall;
245 VikLayerFuncSetParam set_param;
246 VikLayerFuncGetParam get_param;
248 /* for I/O -- extra non-param data like TrwLayer data */
249 VikLayerFuncReadFileData read_file_data;
250 VikLayerFuncWriteFileData write_file_data;
252 VikLayerFuncDeleteItem delete_item;
253 VikLayerFuncCutItem cut_item;
254 VikLayerFuncCopyItem copy_item;
255 VikLayerFuncPasteItem paste_item;
256 VikLayerFuncFreeCopiedItem free_copied_item;
258 VikLayerFuncDragDropRequest drag_drop_request;
260 VikLayerFuncSelectClick select_click;
261 VikLayerFuncSelectMove select_move;
262 VikLayerFuncSelectRelease select_release;
263 VikLayerFuncSelectedViewportMenu show_viewport_menu;
266 VikLayerInterface *vik_layer_get_interface ( gint type );
269 void vik_layer_init ( VikLayer *vl, gint type );
270 void vik_layer_draw ( VikLayer *l, gpointer data );
271 void vik_layer_change_coord_mode ( VikLayer *l, VikCoordMode mode );
272 void vik_layer_rename ( VikLayer *l, const gchar *new_name );
273 void vik_layer_rename_no_copy ( VikLayer *l, gchar *new_name );
274 const gchar *vik_layer_get_name ( VikLayer *l );
276 gboolean vik_layer_set_param (VikLayer *layer, guint16 id, VikLayerParamData data, gpointer vp, gboolean is_file_operation);
278 void vik_layer_emit_update ( VikLayer *vl, gboolean from_background );
281 void vik_layer_set_menu_items_selection(VikLayer *l, guint16 selection);
282 guint16 vik_layer_get_menu_items_selection(VikLayer *l);
283 void vik_layer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp );
284 VikLayer *vik_layer_create ( gint type, gpointer vp, GtkWindow *w, gboolean interactive );
285 gboolean vik_layer_properties ( VikLayer *layer, gpointer vp );
287 void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter * layer_iter );
288 void vik_layer_post_read ( VikLayer *layer, VikViewport *vp, gboolean from_file );
290 gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter, VikViewport *vvp );
292 VikLayer *vik_layer_copy ( VikLayer *vl, gpointer vp );
293 void vik_layer_marshall ( VikLayer *vl, guint8 **data, gint *len );
294 VikLayer *vik_layer_unmarshall ( guint8 *data, gint len, VikViewport *vvp );
295 void vik_layer_marshall_params ( VikLayer *vl, guint8 **data, gint *len );
296 void vik_layer_unmarshall_params ( VikLayer *vl, guint8 *data, gint len, VikViewport *vvp );
298 const gchar *vik_layer_sublayer_rename_request ( VikLayer *l, const gchar *newname, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter );
300 gboolean vik_layer_sublayer_toggle_visible ( VikLayer *l, gint subtype, gpointer sublayer );
302 const gchar* vik_layer_sublayer_tooltip ( VikLayer *l, gint subtype, gpointer sublayer );
304 const gchar* vik_layer_layer_tooltip ( VikLayer *l );
306 gboolean vik_layer_selected ( VikLayer *l, gint subtype, gpointer sublayer, gint type, gpointer vlp );
308 /* TODO: put in layerspanel */
309 GdkPixbuf *vik_layer_load_icon ( gint type );
311 VikLayer *vik_layer_get_and_reset_trigger();
312 void vik_layer_emit_update_secondary ( VikLayer *vl ); /* to be called by aggregate layer only. doesn't set the trigger */
313 void vik_layer_emit_update_although_invisible ( VikLayer *vl );