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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 "glu.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. */
#ifdef __CPLUSPLUS__
extern "C" {
#endif
/*
* Structure used by the tesselator.
*/
typedef struct _ZnCombineData {
ZnReal v[2];
struct _ZnCombineData *next;
} ZnCombineData;
/*
* 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 */
unsigned int track_managed_history_size; /* Size of history for tracks */
ZnBool track_manage_history; /* Tell if the tracks manage their */
/* histories. */
ZnReal speed_vector_length; /* How long (in time) are speedvectors*/
int om_group_id; /* Tell which group contains tracks to be */
#ifdef OM
ZnItem om_group; /* processed for anti label overlap. */
#endif
/* 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
ZnImage map_distance_symbol; /* Distance marks displayed along Map */
/* lines. */
ZnImage track_symbol; /* Symbol displayed at track/wp current */
/* positrion. */
/* 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). */
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 */
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
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. */
#ifdef GL
ZnGLContext gl_context;
# ifdef _WIN32
HDC hdc;
HWND hwnd;
# else
XVisualInfo *gl_visual;
# endif
ZnReal max_line_width;
ZnReal max_point_width;
unsigned int max_tex_size;
#endif /* GL */
GLUtesselator *tess;
ZnCombineData *tess_combine_list;
int tess_type;
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;
ZnList work_item_list; /* Temporary item list used in internal
* works. */
ZnList work_pts; /* Temporary point lists. */
ZnList work_xpts;
ZnList work_doubles; /* Temporary number list. */
ZnList work_strs; /* Temporary string list */
/* 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. */
char *x_scroll_cmd; /* Command prefixes for communicating with */
char *y_scroll_cmd; /* scrollbars. NULL means no scrollbar.
* Malloc'ed */
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. */
char *region; /* Scroll region option string source of the
* scroll_region above. */
/* Perf measurement variables. */
#ifndef _WIN32
ZnChrono this_draw_chrono;
ZnChrono total_draw_chrono;
#endif
int num_items;
int damaged_area_w;
int damaged_area_h;
} ZnWInfo;
#ifdef __CPLUSPLUS__
}
#endif
#endif /* _WidgetInfo_h */
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