/* file: xvwave.h G. Moody 27 April 1990
Last revised: 10 June 2005
XView constants, macros, function prototypes, and global variables for WAVE
-------------------------------------------------------------------------------
WAVE: Waveform analyzer, viewer, and editor
Copyright (C) 1990-2005 George B. Moody
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, see <http://www.gnu.org/licenses/>.
You may contact the author by e-mail (wfdb@physionet.org) or postal mail
(MIT Room E25-505A, Cambridge, MA 02139 USA). For updates to this software,
please visit PhysioNet (http://www.physionet.org/).
_______________________________________________________________________________
*/
#include <X11/Xlib.h> /* Xlib definitions */
#include <xview/xview.h> /* XView definitions */
#include <xview/panel.h>
#include <xview/svrimage.h>
/* Default screen resolution. All known X servers seem to know something about
the screen size, even if what they know isn't true. Just in case, these
constants define default values to be used if Height/WidthMMOfScreen give
non-positive results. If your screen doesn't have square pixels, define
DPMMX and DPMMY differently. Note that these definitions can be made using
-D... options on the C compiler's command line.
If your X server is misinformed about your screen size, there are three
possible remedies. All of the X11R4 sample servers from MIT accept a `-dpi'
option that allows you to override the server default at the time the
server is started. See the X man page for details. Alternatively, use
WAVE's `-dpi' option or `dpi' resource (less desirable solutions, since they
don't solve similar problems that other applications are likely to
encounter). */
#ifndef DPMM
#define DPMM 4.0 /* default screen resolution (pixels per millimeter) */
#endif
#ifndef DPMMX
#define DPMMX DPMM
#endif
#ifndef DPMMY
#define DPMMY DPMM
#endif
/* Annotations are displayed in the font specified by DEFANNFONT if no
other choice is specified. At present, there is no other way to specify
a choice. Ultimately, this should be done by reading a resource file. */
#ifndef DEFANNFONT
#define DEFANNFONT "fixed"
#endif
/* The following macro is used to determine the type of display available to
this program (color, grey scale, monochrome, etc.). The symbols __cplusplus
and c_plusplus are defined by AT&T C++ and GNU G++; the alternate
definition is needed if WAVE is compiled by a C++ compiler, to avoid clashes
with the C++ reserved word `class' (see X11/Xlib.h). */
#if defined(__cplusplus) || defined(c_plusplus)
#define ClassOfVisual(visual) ((visual)->c_class)
#else
#define ClassOfVisual(visual) ((visual)->class)
#endif
/* Globally visible X11 and XView objects. */
COMMON Frame frame; /* base frame object */
COMMON Display *display;/* X server connection */
COMMON Server_image icon_image; /* Icon bitmap for base and other frames */
COMMON Pixmap osb; /* the offscreen buffer for the canvas */
COMMON XID xid; /* Xlib "drawable" id for signal window */
COMMON XFontStruct *font; /* Font used for text in signal window */
/* Graphics contexts. For each displayed object (signal, annotation, cursor,
and grid) there are drawing and erasing graphics contexts; in addition,
there is a `clear_all' GC for erasing everything at once. If change_color
is zero (i.e., if we have not installed a customized color map), all of the
clear_* contexts are equivalent to clear_all, except that clear_crs is
equivalent to draw_crs (which uses GXinvert for the drawing function in this
case). */
COMMON GC draw_sig, clear_sig,
draw_ann, clear_ann,
draw_crs, clear_crs,
draw_grd, draw_cgrd, clear_grd,
highlight_sig, unhighlight_sig,
clear_all;
COMMON int ann_popup_active; /* <0: annotation template popup not created,
0: popup not visible, >0: popup visible */
/* Display lists
A display list contains all information needed to draw a screenful of signals.
For each of the nsig signals, a display list contains a list of the
(x, y) pixel coordinate pairs that specify the vertices of the polyline
that represents the signal.
A cache of recently-used display lists (up to MAX_DISPLAY_LISTS of them) is
maintained as a singly-linked list; the first display list is pointed
to by first_list.
*/
struct display_list {
struct display_list *next; /* link to next display list */
long start; /* time of first sample */
int nsig; /* number of signals */
int npoints; /* number of (input) points per signal */
int ndpts; /* number of (output) points per signal */
int xmax; /* largest x, expressed as window abscissa */
int *sb; /* signal baselines, expressed as window ordinates */
XPoint **vlist; /* vertex list pointers for each signal */
};
COMMON struct display_list *first_list;
COMMON Panel_item *level_name, *level_value, *level_units; /* see edit.c */
COMMON XSegment *level;
/* Function prototypes for ANSI C and C++ compilers. (Most of these are in
wave.h; those below are only for functions that use X or XView objects
in their argument lists.) */
#if defined(__STDC__) || defined(__cplusplus) || defined(c_plusplus)
extern Panel create_main_panel(void); /* in mainpan.c */
extern void disp_proc(Panel_item i, Event *e); /* in mainpan.c */
extern void window_event_proc(Xv_Window w, /* in edit.c */
Event *e, Notify_arg a);
extern struct display_list *find_display_list( /* in signal.c */
long time);
/* Function return types for K&R C compilers. */
#else
extern Panel create_main_panel();
extern void disp_proc(), window_event_proc();
extern struct display_list *find_display_list();
#endif