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/*
* 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 <X11/Xlib.h>
#include <X11/Xutil.h>
#ifdef SHM
#include <X11/extensions/XShm.h>
#endif
#include "Item.h"
#include "Transfo.h"
#include "Types.h"
#include "perfos.h"
#ifndef NUM_ALPHA_STEPS
#define NUM_ALPHA_STEPS 16
#endif
/* Constants for flags */
#define REPICK_IN_PROGRESS 1
#define LEFT_GRABBED_ITEM 2
#define INTERNAL_NEED_REPICK 8
#ifdef SHM
/*
* Data for local rendering mode.
*/
typedef struct {
unsigned char *buf; /* 24-bit RGB buffer for rendering */
int rowstride; /* Rowstride for the buffer */
int ox, oy, cx, cy; /* Rectangle describing the rendering area */
} RenderBuf;
#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 _TextInfo {
ZnColor sel_color; /* Background color for selected text.
* Read-only to items.*/
Item sel_item; /* Pointer to selected item. ZN_NO_ITEM
* means that the widget doesn't own the
* selection. Writable by items. */
int sel_first; /* Index of first selected character.
* Writable by items. */
int sel_last; /* Index of last selected character.
* Writable by items. */
Item anchor_item; /* Item corresponding to sel_anchor: not
* necessarily sel_item. Read-only to items. */
int sel_anchor; /* Fixed end of selection (i.e. "select to"
* operation will use this as one end of the
* selection). Writable by items. */
ZnColor insert_color; /* Used to draw vertical bar for insertion
* cursor. Read-only to items. */
int insert_width; /* Total width of insertion cursor. Read-only
* to items. */
Item focus_item; /* Item that currently has the input focus,
* or ZN_NO_ITEM if no such item. Read-only to
* items. */
ZnBool got_focus; /* True means that the widget has the input
* focus. Read-only to items.*/
ZnBool cursor_on; /* True means that an insertion cursor should
* be displayed in focus_item. Read-only to
* items.*/
struct _ColorGradient *sel_relief;
struct _ColorGradient *insert_relief;
} TextInfo;
typedef struct _WidgetInfo {
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. */
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. */
Item current_item; /* Item picked from previous pick sequence */
Item new_item; /* Item picked from current pick sequence */
int current_part;
int new_part;
Item hot_item;
Item hot_prev;
XEvent pick_event; /* Event used to forge fake events and to do
* repicks. */
ZnBool update_pending; /* True means there is a pending graphic
* update. */
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[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. */
Tk_3DBorder bg_border; /* The data describing the background
* and border colors. */
ReliefStyle relief; /* The border relief. */
/* Tracks global resources */
int track_managed_history_size; /* Size of history for tracks */
ZnBool track_manage_history; /* Tell if the tracks manage their */
/* histories. */
int speed_vector_length; /* How long (in time) are speedvectors*/
#ifdef OM
int om_group_id; /* Tell which group contains tracks to be */
Item om_group; /* processed for anti label overlap. */
#endif
/* Maps global resources */
ZnFont map_text_font; /* Font for texts in Map items */
Pixmap map_distance_symbol;
/* display distance marks along Map */
/* lines. */
/* Transformer */
ZnTransfo *current_transfo;
ZnList transfo_stack;
struct _ClipState *current_clip;
ZnList clip_stack;
/* Others */
ZnColor fore_color; /* Default foreground used in new items */
ZnColor back_color; /* Color of the widget background. */
ZnColor bbox_color; /* Color used to draw bboxes (debug). */
Cursor cursor; /* Cursor displayed in zinc window. */
ZnBool draw_bboxes; /* Draw item's bboxes (debug). */
int light_angle;
int pick_aperture; /* size of pick aperture in pixels */
ZnFont font; /* Default font used in new items */
ZnBool reshape; /* Use the Shape Extension on the window.*/
ZnBool full_reshape; /* Use it on the top level window. */
char *tile_name;
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;
ZnWindow win; /* The window of the widget. */
ZnBool realized;
#ifdef SHM
XImage *draw_buffer_im; /* Image for double buffering */
RenderBuf buf;
#endif
Pixmap draw_buffer; /* Pixmap for double buffering */
ZnBBox damaged_area; /* The current damaged rectangle */
GC gc;
ZnBool has_x_shm; /* Tell if the SHM X11 ext is avail. */
ZnBool has_x_shape; /* Tell if the X shape ext. is avail. */
ZnBool has_x_input; /* Tell if the X input ext. is avail. */
ZnBool local_render; /* Instruct to render to a local image,
* using libart. */
#ifdef SHM
XShmSegmentInfo x_shm_info;
#endif
int events_flags; /* NEED_REPICK et al */
Window real_top;
Item top_group;
ZnList work_item_list; /* Temporary item list used in internal
* works. */
ZnList work_pts; /* Temporary point lists. */
ZnList work_xpts;
/* Text management */
TextInfo 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. */
ZnColor highlight_bg_color; /* Color for drawing traversal highlight
* area when highlight is off. */
ZnColor highlight_color; /* Color for drawing traversal highlight.*/
/* Perf measurement variables. */
ZnBool monitoring;
Chrono this_draw_chrono;
Chrono total_draw_chrono;
int num_items;
int damaged_area_w;
int damaged_area_h;
} WidgetInfo;
#ifdef __CPLUSPLUS__
}
#endif
#endif /* _WidgetInfo_h */
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