aboutsummaryrefslogtreecommitdiff
path: root/generic/WidgetInfo.h
blob: 725b2d947eee1f83ea49282b1845de4081c3bbc6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
/*
 * WidgetInfo.h -- Zinc Widget record.
 *
 * Authors		: Patrick Lecoanet.
 * Creation date	: Mon Feb  1 12:13:24 1999
 *
 * $Id$
 */

/*
 *  Copyright (c) 1993 - 1999 CENA, Patrick Lecoanet --
 *
 * This code is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this code; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */


#ifndef _WidgetInfo_h
#define _WidgetInfo_h


#include "Item.h"
#include "Transfo.h"
#include "Types.h"
#ifndef _WIN32
#include "perfos.h"
#endif
#include "Color.h"


#define ZN_NUM_ALPHA_STEPS	16

/*
 * Constants for flags
 */
#define ZN_REPICK_IN_PROGRESS	(1<<0)
#define ZN_GRABBED_ITEM		(1<<1)
#define ZN_GRABBED_PART		(1<<2)
#define ZN_REALIZED		(1<<3)
#define ZN_INTERNAL_NEED_REPICK	(1<<4)
#define ZN_UPDATE_SCROLLBARS	(1<<5)	/* If set, the scrollbars must be updated. */
#define ZN_GOT_FOCUS		(1<<6)	/* Set means that the widget has the input focus. */
#define ZN_UPDATE_PENDING	(1<<7)	/* Set means there is a pending graphic update. */
#define ZN_HAS_GL		(1<<8)	/* Tell if openGL can be used. */
#define ZN_HAS_X_SHAPE		(1<<9)	/* Tell if the X shape extension is available. */
#define ZN_MONITORING		(1<<10)	/* Set if performance monitoring is on. */
#define	ZN_PRINT_CONFIG		(1<<11) /* If set the openGL hardware configuration
					 * is printed on startup. */
#define ZN_CONFIGURE_EVENT	(1<<12)

#ifdef __CPLUSPLUS__
extern "C" {
#endif


/*
 * The following structure provides information about the selection and
 * the insertion cursor.  It is needed by only a few items, such as
 * those that display text.  It is shared by the generic canvas code
 * and the item-specific code, but most of the fields should be written
 * only by the canvas generic code.
 */
typedef struct _ZnTextInfo {
  ZnGradient	*sel_color;	/* Background color for selected text.
				 * Read-only to items.*/
  ZnItem	sel_item;	/* Pointer to selected item. ZN_NO_ITEM
				 * means that the widget doesn't own the
				 * selection. Writable by items. */
  int		sel_field;
  int		sel_first;	/* Index of first selected character. 
				 * Writable by items. */
  int		sel_last;	/* Index of last selected character. 
				 * Writable by items. */
  ZnItem	anchor_item;	/* Item corresponding to sel_anchor: not
				 * necessarily sel_item. Read-only to items. */
  int		anchor_field;
  int		sel_anchor;	/* Fixed end of selection (i.e. "select to"
				 * operation will use this as one end of the
				 * selection).  Writable by items. */
  ZnGradient	*insert_color;	/* Used to draw vertical bar for insertion
				 * cursor.  Read-only to items. */
  unsigned int	insert_width;	/* Total width of insertion cursor.  Read-only
				 * to items. */
  ZnBool	cursor_on;	/* True means that an insertion cursor should
				 * be displayed in focus_item. Read-only to
				 * items.*/
} ZnTextInfo;

typedef struct _ZnWInfo {
  Tcl_Interp		*interp;	/* Interpreter associated with widget.	*/
  Tcl_Command		cmd;		/* Token for zinc widget command.	*/
  Tcl_HashTable		*id_table;	/* Hash table for object ids.		*/
  Tcl_HashTable		*t_table;	/* Hash table for transformations.	*/
  unsigned long		obj_id;		/* Id for the next new object.		*/
  int			flags;
  Tk_BindingTable	binding_table;	/* Table of all bindings currently defined
					 * for this widget.  NULL means that no
					 * bindings exist, so the table hasn't been
					 * created.  Each "object" used for this
					 * table is either a Tk_Uid for a tag or
					 * the address of an item named by id.	*/
  int			state;		/* Last known modifier state.  Used to
					 * defer picking a new current object
					 * while buttons are down. */
  ZnItem		current_item;	/* Item picked from previous pick sequence */
  ZnItem		new_item;	/* Item picked from current pick sequence */
  int			current_part;
  int			new_part;
  ZnItem		hot_item;
  ZnItem		hot_prev;
  ZnItem		focus_item;	/* Item that currently has the input focus,
					 * or ZN_NO_ITEM if no such item.  Read-only to
					 * items.  */
  int			focus_field;
  XEvent		pick_event;	/* Event used to forge fake events and to do
					 * repicks. */
  ZnBBox		exposed_area;	/* Window area that need to be rexposed.
					 * It is distinct from redraw_area which
					 * is updated when items are changed. */
  Pixmap		alpha_stipples[ZN_NUM_ALPHA_STEPS];
  int			border_width;
  int			opt_width;	/* Window size as stated/reported by the option. */
  int			opt_height;	/* They are equal to the width/height fields after
					 * the actual resize. They may to be equal if
					 * the resize is not acknowledged by the geo
					 * manager. */
  ZnGradient		*relief_grad;	/* The gradient describing the border relief
					 * colors. */
  ZnReliefStyle		relief;		/* The border relief. */
  
  /* Tracks global resources	*/
#ifdef ATC
  unsigned int		track_managed_history_size;	/* Size of history for tracks	*/
  unsigned int		track_visible_history_size;	/* Size of displayed history	*/
  ZnReal		speed_vector_length; /* How long (in time) are speedvectors*/
  int			om_group_id;	/* Tell which group contains tracks to be	*/
  ZnItem		om_group;	/* processed for anti label overlap.		*/

  /* Maps global resources */
  Tk_Font		map_text_font;		/* Font for texts in Map items		*/
#ifdef GL
  ZnTexFontInfo		map_font_tfi;		/* Used to preserve the default font from
						 * being freed again and again */
#endif
  Tcl_Obj		*map_symbol_obj;
  ZnImage		map_distance_symbol;	/* Distance marks displayed along Map	*/
						/* lines.				*/
  Tcl_Obj		*track_symbol_obj;
  ZnImage		track_symbol;		/* Symbol displayed at track/wp current */
						/* position.				*/
#endif
  /* Transformer */
  ZnTransfo		*current_transfo;
  ZnList		transfo_stack;
  struct _ClipState	*current_clip;
  ZnList		clip_stack;
  
  /* Others */
  ZnGradient		*fore_color;		/* Default gradient used in new items	*/
  ZnGradient		*back_color;		/* Color of the widget background.	*/
  ZnGradient		*bbox_color;		/* Color used to draw bboxes (debug).	*/
  Tk_Cursor		cursor;			/* Cursor displayed in zinc window.	*/
  ZnBool		draw_bboxes;		/* Draw item's bboxes (debug).		*/
  ZnBool		follow_pointer;		/* Process pointer motion events to	*/
						/* emit enter/leave events.		*/
  int			light_angle;
  
  int			pick_aperture;		/* size of pick aperture in pixels	*/
  Tk_Font		font;			/* Default font used in new items */
#ifdef GL
  ZnTexFontInfo		font_tfi;		/* Used to preserve the default font from
						 * being freed again and again */
#endif
  Tcl_Obj		*tile_obj;
  ZnImage		tile;
  
  /* Zinc private resources */
  int			width;			/* Actual window dimension. */
  int			height;
  int			inset;			/* Border and highlight width */
  
  /* Graphic variables */
  Display		*dpy;			/* The display of the widget window.	*/
  Screen		*screen;
  Tk_Window		win;			/* The window of the widget. */
  Pixmap		draw_buffer;		/* Pixmap for double buffering		*/
  ZnBBox		damaged_area;		/* The current damaged rectangle	*/
  GC			gc;
  ZnBool		reshape;		/* Use the Shape Extension on the window.*/
  ZnBool		full_reshape;		/* Use it on the top level window.	*/
  Window		real_top;
  int			render;
  unsigned char		alpha;			/* Current composite group alpha. */
  ZnItem		top_group;
#ifndef PTK_800
  Tk_OptionTable	opt_table;
#endif

  /* Text management */
  ZnTextInfo		text_info;
  int			insert_on_time;
  int			insert_off_time;
  Tcl_TimerToken	blink_handler;
  char			*take_focus;
  int			highlight_width;	/* Width in pixels of highlight to draw
						 * around widget when it has the focus.
						 * = 0 means don't draw a highlight. */
  ZnGradient		*highlight_bg_color;	/* Color for drawing traversal highlight
						 * area when highlight is off. */
  ZnGradient		*highlight_color;	/* Color for drawing traversal highlight.*/
  
  /* Scrollbar management */
  ZnPoint		origin;			/* Coordinate mapped to the upper left corner
						 * of the zinc window. */
#ifdef PTK
  LangCallback		*x_scroll_cmd;
  LangCallback		*y_scroll_cmd;
#else
  Tcl_Obj		*x_scroll_cmd;		/* Command prefixes for communicating with */
  Tcl_Obj		*y_scroll_cmd;		/* scrollbars.  NULL means no scrollbar.
						 * Malloc'ed */
#endif
  int			x_scroll_incr;		/* If >0, defines a grid for horiz/vert */
  int			y_scroll_incr;		/* scrolling.  This is the size of the "unit",
						 * and the left edge of the screen will always
						 * lie on an even unit boundary. */
  int			scroll_xo;		/* This bbox define the region that is the */
  int			scroll_yo;		/* 100% area for scrolling (i.e. it determines */
  int			scroll_xc;		/* the size and location of the sliders on */
  int			scroll_yc;		/* scrollbars). */
  ZnBool		confine;		/* When true, it is not possible to scroll the
						 * viewing area past the scroll region. */
  Tcl_Obj		*region;		/* Scroll region option string source of the
						 * scroll_region above. */

  /* Perf measurement variables. */
#ifndef _WIN32
  ZnChrono		this_draw_chrono;
  ZnChrono		total_draw_chrono;
  void			*ps_info;
#endif
  int			num_items;
  int			damaged_area_w;
  int			damaged_area_h;
} ZnWInfo;

  
#ifdef __CPLUSPLUS__
}
#endif

#endif /* _WidgetInfo_h */