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graph.c
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graph.c
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/* File: graph.c
*
* X interface for DISCERN
*
* Copyright (C) 1994 Risto Miikkulainen
*
* This software can be copied, modified and distributed freely for
* educational and research purposes, provided that this notice is included
* in the code, and the author is acknowledged in any materials and reports
* that result from its use. It may not be used for commercial purposes
* without expressed permission from the author.
*
* $Id: graph.c,v 1.68 1994/09/22 05:06:52 risto Exp risto $
*/
#include <stdio.h>
#include <math.h>
#include <setjmp.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Toggle.h>
#include <X11/Xaw/AsciiText.h>
#include "defs.h"
#include "Gwin.h"
#include "globals.c"
/************ graphics constants *************/
/* color parameters */
#define UNITCOLORS 0 /* chooses bryw colorscale */
#define WEIGHTCOLORS 1 /* chooses gbryw colorscale (not used) */
#define MINCOLORS 10 /* if fewer free colors, use existing */
#define MAXCOLORS 256 /* max # of colors */
#define MAXCOLGRAN 65535 /* granularity of color values */
/* colormap entry */
typedef struct RGB
{
short red, green, blue; /* hold possible rgb values in XColor struct */
}
RGB;
/* graphics separator constants */
#define HIDSP 1 /* separation of hidden layers,pixels */
#define VERSP 3 /* generic vertical separation */
#define HORSP 3 /* generic horizontal separation */
#define BOXSP 1 /* vertical space around boxed text */
#define HFMSP 3 /* separation of hfm boxes */
#define PREVSP (3 * HORSP) /* indentation of prev hidden layers */
/* displaying labels */
#define MORELABEL "more.." /* if # of labels > maxlabels, this is shown */
#define NWINS NMODULES /* number of windows */
/* text constants in hfminp */
#define HFMINP_REPS "slot-representations" /* input data begins in hfminp */
/******************** Function prototypes ************************/
/* global functions */
#include "prototypes.h"
extern unsigned sleep __P ((unsigned seconds));
/* functions local to this file */
static void handle_events __P((void));
static void runstop_callback __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void toggle_callback __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void Read_command __P((Widget w, XEvent *ev, String *params,
Cardinal *num_params));
static void clear_callback __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void quit_callback __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void init_rgbtab_noweights __P((void));
static void init_rgbtab_bw __P((void));
static void alloc_col __P((void));
static void clean_color_map __P((int k));
static void create_colormap __P((void));
static int createGC __P((Window New_win, GC *New_GC, Font fid, Pixel FGpix,
Pixel theBGpix));
static XFontStruct *loadFont __P((char fontName[]));
static void common_resize __P((int modi, Widget w));
static void init_common_proc_display_params __P((int modi, Widget w));
static void expose_sentpars __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void expose_storypars __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void expose_sentgen __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void expose_storygen __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void expose_cueformer __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void expose_answerprod __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void common_proc_resize __P((int modi));
static void resize_sentpars __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void resize_storypars __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void resize_storygen __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void resize_sentgen __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void resize_cueformer __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void resize_answerprod __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void display_labels __P((int modi, int x, int y,
char *labels[], int nitem));
static void display_boxword __P((int modi, int x, int y, int width, int height,
char wordchars[], int index,
XFontStruct *fontStruct, GC currGC));
static int imin __P((int a, int b));
static int imax __P((int a, int b));
static void init_hfm_display_params __P((int modi, Widget w));
static void expose_hfm __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void resize_hfm __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void hfmmouse_handler __P ((Widget w, XtPointer client_data,
XEvent *p_event));
static void topmouse_handler __P ((int x, int y));
static void midmouse_handler __P ((int x, int y));
static void botmouse_handler __P ((int x, int y));
static int compressed_lines __P ((int indices[], int nindices,
int low, int high));
static void display_top_box __P((int modi, int nnet, int x, int y, int width,
int height, XFontStruct *fontstruct,
FMUNIT units[MAXTOPNET][MAXTOPNET]));
static void display_mid_box __P((int modi, int nnet, int x, int y, int width,
int height, XFontStruct *fontstruct,
FMUNIT units[MAXMIDNET][MAXMIDNET]));
static void display_bot_box __P((int modi, int nnet, int x, int y, int width,
int height, XFontStruct *fontstruct,
FMUNIT units[MAXBOTNET][MAXBOTNET],
double lweights[MAXBOTNET][MAXBOTNET]
[MAXBOTNET][MAXBOTNET]));
static void init_lex_display_params __P((int modi, Widget w, int nnet,
int nwords, WORDSTRUCT words[],
int nrep,
FMUNIT units[MAXLSNET][MAXLSNET]));
static void expose_lex __P((Widget w, XtPointer units, XtPointer call_data));
static void resize_lex __P((Widget w, XtPointer client_data,
XtPointer call_data));
static void lexsemmouse_handler __P ((Widget w, XtPointer client_data,
XEvent *p_event));
static void display_assocweights __P ((int srcmodi,
FMUNIT srcunits[MAXLSNET][MAXLSNET],
int nsrcnet, WORDSTRUCT *srcwords,
int nsrcrep, int nsrcwords, int tgtmodi,
FMUNIT tgtunits[MAXLSNET][MAXLSNET],
int ntgtnet, WORDSTRUCT *tgtwords,
int ntgtrep, int ntgtwords,
int x, int y,
double assoc[MAXLSNET][MAXLSNET]
[MAXLSNET][MAXLSNET]));
static void display_title __P((int modi, char name[]));
static void display_log __P((int modi));
static void frameRectangle __P((int modi, int x, int y, int width, int height,
int colorindex));
static void labelbox __P((int modi, int x, int y, int width, int height,
double value, char labels[][MAXWORDL + 1],
int labelcount, XFontStruct *fontstruct,
GC fGC, GC bGC));
static void collect_uniq_labels __P((char labels[][MAXWORDL + 1],
int *count, char label[], int maxlabels));
static void collect_labels __P((char labels[][MAXWORDL + 1], int *count,
char label[], int maxlabels));
static int newlabel __P((char labels[][MAXWORDL + 1], int count, char *label));
static int trans_to_color __P((double value, int map));
static void drawLine __P((int modi, int x1, int y1, int x2, int y2, GC currGC,
int width));
static void clearRectangle __P((int modi, int x, int y, int width,
int height));
static void fillRectangle __P((int modi, int x, int y, int width, int height,
int colorindex));
static void drawRectangle __P((int modi, int x, int y, int width, int height));
static void drawText __P((int modi, int x, int y, char text[], GC currGC));
static void drawoverText __P((int modi, int x, int y, char text[], GC currGC));
/******************** static variables *********************/
static XColor colors[MAXCOLORS];
static int actual_color_range; /* number of colors in use */
static int fewesttopi, fewesttopj; /* coordinates for the hfm label */
/* button, command, and graphics widgets */
static Widget
runstop, step, clear, quit, /* buttons */
command, /* command input widget */
sentpars, storypars, storygen, sentgen, cueformer,
answerprod, hfm, lex, sem; /* network graphics widgets */
/* useful pointers to windows */
static Window
theMain, runstopWin, commandWin, Win[NWINS]; /* network graphics windows */
/* text constants to be displayed */
static char
/* labels of the case role assemblies */
*caselabels[] =
{"AGENT", "ACT", "RECIPIENT", "PAT-ATTR", "PATIENT", "LOCATION"},
/* labels of the script slot assemblies */
*slotlabels[] =
{"SCRIPT", "TRACK", "ACTOR", "ITEM", "PLACE", "ROLE1", "ROLE2"},
/* names of the network modules */
*titles[] =
{"SENTENCE PARSER", "STORY PARSER", "STORY GENERATOR", "SENTENCE GENERATOR",
"CUE FORMER", "ANSWER PRODUCER", "EPISODIC MEMORY", "unused", "LEXICAL MAP",
"unused", "SEMANTIC MAP", "unused"}; /* input and output lexical maps */
/* are combined into one window */
/* so their indices are unused */
/* graphics contexts */
static GC
titleGC, /* window name */
logGC, /* log line: item and error */
asmGC, /* text in assemblies */
asmerrorGC, /* errors in assemblies (smaller font) */
hfmfGC, tracefGC, lexfGC,
semfGC, /* foreground labels on maps */
hfmbGC, tracebGC, lexbGC,
sembGC, /* background (reverse) labels */
linefGC, linebGC, /* trace lines, foreground and back */
clearGC, /* for clearing areas */
boxGC, /* for drawing network boxes */
activityGC; /* for displaying activations */
/* corresponding fonts */
static XFontStruct
*titlefontStruct, *logfontStruct, *asmfontStruct, *asmerrorfontStruct,
*hfmfontStruct, *tracefontStruct, *lexfontStruct, *semfontStruct;
/* Array of rgb values that represents a linear color spectrum */
static RGB rgbtab[MAXCOLORS];
/* the unit value colormap */
static short cmap[MAXCOLORS];
/* actions */
static XtActionsRec command_actions[] =
{ /* need to read the command line */
{ "read_command", Read_command } /* after user presses return */
}; /* so define it as an action */
/********************* general initialization ***********************/
void
display_init ()
/* initialize the X display */
{
Arg args[3];
char s[MAXSTRL + 1];
Pixel theBGpix; /* background color */
Dimension borderwidth,
height, width, /* various widget heights and widths given */
tot_width; /* computed total width of display */
printf ("Initializing graphics...\n");
XtSetArg (args[0], XtNborderWidth, &borderwidth);
XtGetValues (main_widget, args, 1); /* get the current border width */
/* create a form with no space between widgets */
XtSetArg (args[0], XtNdefaultDistance, 0);
form = XtCreateManagedWidget ("form", formWidgetClass, main_widget, args, 1);
/* the command button for running and stopping the simulation */
runstop = XtCreateManagedWidget ("runstop", commandWidgetClass,
form, args, 1);
/* toggle switch: if on, the simulation will stop after each propagation */
step = XtCreateManagedWidget ("step", toggleWidgetClass, form, args, 1);
/* the command button for clearing the networks */
clear = XtCreateManagedWidget ("clear", commandWidgetClass, form, args, 1);
/* the command button for exiting the program */
quit = XtCreateManagedWidget ("quit", commandWidgetClass, form, args, 1);
/* create command line widget: */
/* first get the height from runstop */
XtSetArg (args[0], XtNheight, &height);
/* then figure out the total width of the display by */
/* getting the widths of each widget, adding them up, and subtracting
from the total width of the display */
XtSetArg (args[1], XtNwidth, &width);
XtGetValues (runstop, args, 2);
tot_width = width + 2 * borderwidth;
XtSetArg (args[0], XtNwidth, &width);
XtGetValues (step, args, 1);
tot_width += width + 2 * borderwidth;
XtSetArg (args[0], XtNwidth, &width);
XtGetValues (clear, args, 1);
tot_width += width + 2 * borderwidth;
XtSetArg (args[0], XtNwidth, &width);
XtGetValues (quit, args, 1);
tot_width += width + 2 * borderwidth;
XtSetArg (args[0], XtNheight, height);
XtSetArg (args[1], XtNwidth,
2 * data.netwidth + 2 * borderwidth - tot_width);
/* display the name of the current inputfile in the command line widget */
sprintf (s, "file %s", current_inpfile);
XtSetArg (args[2], XtNstring, s);
command = XtCreateManagedWidget ("command", asciiTextWidgetClass,
form, args, 3);
/* create the proc network displays */
/* get the size from resourses */
XtSetArg (args[0], XtNwidth, data.netwidth);
XtSetArg (args[1], XtNheight, data.procnetheight);
sentpars = XtCreateManagedWidget ("sentpars", gwinWidgetClass,
form, args, 2);
storypars = XtCreateManagedWidget ("storypars", gwinWidgetClass,
form, args, 2);
cueformer = XtCreateManagedWidget ("cueformer", gwinWidgetClass,
form, args, 2);
sentgen = XtCreateManagedWidget ("sentgen", gwinWidgetClass,
form, args, 2);
storygen = XtCreateManagedWidget ("storygen", gwinWidgetClass,
form, args, 2);
answerprod = XtCreateManagedWidget ("answerprod", gwinWidgetClass,
form, args, 2);
/* create the hfm and lex displays */
/* take the height from resources; width is the same for all */
XtSetArg (args[1], XtNheight, data.lexnetheight);
lex = XtCreateManagedWidget ("lex", gwinWidgetClass, form, args, 2);
sem = XtCreateManagedWidget ("sem", gwinWidgetClass, form, args, 2);
XtSetArg (args[1], XtNheight, data.hfmnetheight);
hfm = XtCreateManagedWidget ("hfm", gwinWidgetClass, form, args, 2);
/* callbacks: what to do when a button is pressed */
XtAddCallback (runstop, XtNcallback, runstop_callback, NULL);
XtAddCallback (step, XtNcallback, toggle_callback, NULL);
XtAddCallback (clear, XtNcallback, clear_callback, NULL);
XtAddCallback (quit, XtNcallback, quit_callback, NULL);
/* network callbacks: redrawing the state */
XtAddCallback (sentpars, XtNexposeCallback, expose_sentpars, NULL);
XtAddCallback (storypars, XtNexposeCallback, expose_storypars, NULL);
XtAddCallback (cueformer, XtNexposeCallback, expose_cueformer, NULL);
XtAddCallback (sentgen, XtNexposeCallback, expose_sentgen, NULL);
XtAddCallback (storygen, XtNexposeCallback, expose_storygen, NULL);
XtAddCallback (answerprod, XtNexposeCallback, expose_answerprod, NULL);
XtAddCallback (hfm, XtNexposeCallback, expose_hfm, NULL);
XtAddCallback (lex, XtNexposeCallback, expose_lex, lunits);
XtAddCallback (sem, XtNexposeCallback, expose_lex, sunits);
/* network callbacks for resizing */
XtAddCallback (sentpars, XtNresizeCallback, resize_sentpars, NULL);
XtAddCallback (storypars, XtNresizeCallback, resize_storypars, NULL);
XtAddCallback (cueformer, XtNresizeCallback, resize_cueformer, NULL);
XtAddCallback (sentgen, XtNresizeCallback, resize_sentgen, NULL);
XtAddCallback (storygen, XtNresizeCallback, resize_storygen, NULL);
XtAddCallback (answerprod, XtNresizeCallback, resize_answerprod, NULL);
XtAddCallback (hfm, XtNresizeCallback, resize_hfm, NULL);
XtAddCallback (lex, XtNresizeCallback, resize_lex, NULL);
XtAddCallback (sem, XtNresizeCallback, resize_lex, NULL);
/* add the command reading action in the table */
XtAppAddActions (app_con, command_actions, XtNumber (command_actions));
/* network event handlers for mouse clicks */
XtAddEventHandler (hfm, ButtonPressMask, FALSE,
(XtEventHandler) hfmmouse_handler, NULL);
XtAddEventHandler (lex, ButtonPressMask, FALSE,
(XtEventHandler) lexsemmouse_handler, NULL);
XtAddEventHandler (sem, ButtonPressMask, FALSE,
(XtEventHandler) lexsemmouse_handler, NULL);
/* figure out the display type and allocate colors */
create_colormap ();
/* put the display on screen */
XtRealizeWidget (main_widget);
theMain = XtWindow (main_widget);
runstopWin = XtWindow (runstop);
commandWin = XtWindow (command);
/* all keyboard events should go to the command line window */
XtSetKeyboardFocus (main_widget, command);
/* calculate some network geometry variables */
init_common_proc_display_params (SENTPARSMOD, sentpars);
init_common_proc_display_params (STORYPARSMOD, storypars);
init_common_proc_display_params (STORYGENMOD, storygen);
init_common_proc_display_params (SENTGENMOD, sentgen);
init_common_proc_display_params (CUEFORMMOD, cueformer);
init_common_proc_display_params (ANSWERPRODMOD, answerprod);
/* and label the feature map units */
init_hfm_display_params (HFMWINMOD, hfm);
init_lex_display_params (LEXWINMOD, lex, nlnet, nlwords,
lwords, nlrep, lunits);
init_lex_display_params (SEMWINMOD, sem, nsnet, nlwords,
swords, nsrep, sunits);
/* use nlwords even on sem map so that internal symbols are not mapped */
/* set a common font for all buttons and command line */
XtSetArg (args[0], XtNfont, loadFont (data.commandfont));
XtSetValues (runstop, args, 1);
XtSetValues (step, args, 1);
XtSetValues (clear, args, 1);
XtSetValues (quit, args, 1);
XtSetValues (command, args, 1);
/* load the other fonts */
titlefontStruct = loadFont (data.titlefont);
logfontStruct = loadFont (data.logfont);
asmfontStruct = loadFont (data.asmfont);
asmerrorfontStruct = loadFont (data.asmerrorfont);
hfmfontStruct = loadFont (data.hfmfont);
tracefontStruct = loadFont (data.tracefont);
lexfontStruct = loadFont (data.lexfont);
semfontStruct = loadFont (data.semfont);
/* figure out space needed for the title and labels */
titleboxhght = titlefontStruct->ascent + titlefontStruct->descent
+ 2 * BOXSP;
asmboxhght = asmfontStruct->ascent + asmfontStruct->descent + 2 * BOXSP;
/* get the background color */
XtSetArg (args[0], XtNbackground, &theBGpix);
XtGetValues (main_widget, args, 1);
/* create graphics context for all fonts */
createGC (theMain, &titleGC, titlefontStruct->fid, data.textColor, theBGpix);
createGC (theMain, &logGC, logfontStruct->fid, data.textColor, theBGpix);
createGC (theMain, &asmGC, asmfontStruct->fid, data.textColor, theBGpix);
createGC (theMain, &asmerrorGC, asmerrorfontStruct->fid, data.textColor,
theBGpix);
/* these are foreground colors */
createGC (theMain, &hfmfGC, hfmfontStruct->fid, data.textColor, theBGpix);
createGC (theMain, &tracefGC, tracefontStruct->fid, data.textColor,theBGpix);
createGC (theMain, &lexfGC, lexfontStruct->fid, data.textColor, theBGpix);
createGC (theMain, &semfGC, semfontStruct->fid, data.textColor, theBGpix);
/* and these are background (when the label color needs to be reversed) */
createGC (theMain, &hfmbGC, hfmfontStruct->fid, theBGpix, theBGpix);
createGC (theMain, &tracebGC, tracefontStruct->fid, theBGpix, theBGpix);
createGC (theMain, &lexbGC, lexfontStruct->fid, theBGpix, theBGpix);
createGC (theMain, &sembGC, semfontStruct->fid, theBGpix, theBGpix);
/* foreground and background colors for trace map weights */
createGC (theMain, &linefGC, logfontStruct->fid, data.latweightColor,
theBGpix);
createGC (theMain, &linebGC, logfontStruct->fid, theBGpix, theBGpix);
/* clearing areas */
createGC (theMain, &clearGC, logfontStruct->fid, theBGpix, theBGpix);
/* network boxes */
createGC (theMain, &boxGC, logfontStruct->fid, data.netColor, theBGpix);
/* generic context for displaying unit activity */
createGC (theMain, &activityGC, logfontStruct->fid, theBGpix, theBGpix);
/* calculate all network geometries and put them on screen */
resize_sentpars (sentpars, NULL, NULL);
resize_storypars (storypars, NULL, NULL);
resize_storygen (storygen, NULL, NULL);
resize_sentgen (sentgen, NULL, NULL);
resize_cueformer (cueformer, NULL, NULL);
resize_answerprod (answerprod, NULL, NULL);
resize_hfm (hfm, NULL, NULL);
resize_lex (lex, NULL, NULL);
resize_lex (sem, NULL, NULL);
printf ("Graphics initialization complete.\n");
}
/********************* event handler ***********************/
static void
handle_events ()
/* event handling loop */
/* we need this instead of XtMainLoop because the main task is to run
the simulation, and only occasionally check for events */
{
XEvent theEvent;
while (XtAppPending (app_con))
/* as long as there are unprocessed events */
{
XtAppNextEvent (app_con, &theEvent);
if (!(theEvent.type == Expose && theEvent.xexpose.count > 0))
/* only process the last expose event */
{
XtDispatchEvent (&theEvent);
XFlush (theDisplay);
}
}
}
void
wait_and_handle_events ()
/* this is called after each main step of the simulation
to stop and wait for "run" if stepping, and to deal with
any other possible events before displaying simulation results */
{
if (stepping)
wait_for_run (); /* wait until user is ready */
else
/* slow down the display this many seconds */
sleep ((unsigned) abs (data.delay));
handle_events (); /* process all pending events before proceeding
to display the simulation results */
}
/********************* button callback routines ***********************/
static void
runstop_callback (w, client_data, call_data)
/* "Run/Stop" button press handler:
if simulation is running, stop it; otherwise, continue simulation.
from wherever handle_events was called */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
if (simulator_running)
wait_for_run ();
else
start_running ();
}
void
wait_for_run ()
/* stop the simulation and start processing events */
{
Arg args[1];
simulator_running = FALSE; /* process events */
XtSetArg (args[0], XtNlabel, "Run"); /* change label on "Run/Stop" button */
XtSetValues (runstop, args, 1);
XFlush (theDisplay);
while (!simulator_running) /* process events until Run pressed */
{
/* Process one event if any or block */
XtAppProcessEvent (app_con, XtIMAll);
/* Process more events, but don't block */
handle_events ();
}
}
void
start_running ()
/* set up to continue or start simulation */
{
Arg args[1];
simulator_running = TRUE; /* allow exit from wait_for_run */
XtSetArg (args[0], XtNlabel, "Stop"); /* change label on "Run/Stop" button */
XtSetValues (runstop, args, 1);
}
static void
toggle_callback (w, client_data, call_data)
/* "Step" button press handler: turn stepping on or off */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
stepping = !stepping;
}
static void
Read_command (w, ev, params, num_params)
/* this action is executed after the user presses return:
read a command from the command widget and process it */
/* standard action parameters, not used here */
Widget w; XEvent *ev; String *params; Cardinal *num_params;
{
Arg args[1];
String str = NULL; /* command string */
char commandstr[MAXSTRL + 1], /* command and */
rest[MAXSTRL + 1]; /* its parameters */
/* get the command line from screen */
XtSetArg (args[0], XtNstring, &str);
XtGetValues (command, args, 1);
if (strlen (str))
{
/* chop it into command and params */
printf ("%s\n", str);
sscanf (str, "%s", commandstr);
strcpy (rest, str + strlen (commandstr));
/* clear the command widget */
XtSetArg (args[0], XtNstring, "");
XtSetValues (command, args, 1);
process_command (NULL, commandstr, rest);
}
else
printf ("\n%s", promptstr);
}
static void
clear_callback (w, client_data, call_data)
/* "Clear" button press handler: clear the display and network activations,
start a fresh command processing loop */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
extern jmp_buf loop_stories_env;
printcomment ("\n", "Clearing networks", "\n");
clear_networks_display ();
nohfmmouseevents = FALSE; /* allow mouse events again */
nolexmouseevents = FALSE;
longjmp (loop_stories_env, 0);
}
void
clear_networks_display ()
/* clear the network activations, traces, logs, and the display */
{
int modi;
/* clear the processing modules and their display windows */
for (modi = 0; modi < NPROCMODULES; modi++)
{
proc_clear_network (modi);
XClearArea (theDisplay, Win[modi], 0, 0, 0, 0, True);
}
/* clear episodic memory and its display */
hfm_clear_values ();
hfm_clear_prevvalues ();
clear_traces ();
sprintf (net[HFMWINMOD].log, "%s", "");
XClearArea (theDisplay, Win[HFMWINMOD], 0, 0, 0, 0, True);
/* clear the lexical map and its display */
lex_clear_values (lunits, nlnet);
lex_clear_prevvalues (lunits, nlnet);
sprintf (net[LEXWINMOD].log, "%s", "");
XClearArea (theDisplay, Win[LEXWINMOD], 0, 0, 0, 0, True);
/* clear the semantic map and its display */
lex_clear_values (sunits, nsnet);
lex_clear_prevvalues (sunits, nsnet);
sprintf (net[SEMWINMOD].log, "%s", "");
XClearArea (theDisplay, Win[SEMWINMOD], 0, 0, 0, 0, True);
/* update the output immediately before data changes */
XFlush (theDisplay);
handle_events ();
}
static void
quit_callback (w, client_data, call_data)
/* "Quit" button press handler: exit the program */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
close_display ();
exit (EXIT_NORMAL);
}
void
close_display ()
/* free fonts and close the display */
{
XFreeFont (theDisplay, titlefontStruct);
XFreeFont (theDisplay, logfontStruct);
XFreeFont (theDisplay, asmfontStruct);
XFreeFont (theDisplay, asmerrorfontStruct);
XFreeFont (theDisplay, hfmfontStruct);
XFreeFont (theDisplay, tracefontStruct);
XFreeFont (theDisplay, lexfontStruct);
XFreeFont (theDisplay, semfontStruct);
XCloseDisplay (theDisplay);
}
/********************* colormap allocation ***********************/
static void
create_colormap ()
/* allocate colors for activation values: depending on the display type
and available colors, allocate a continuous spectrum the best you can */
{
if (!(visual->class == GrayScale || visual->class == StaticGray))
/* we have color display */
init_rgbtab_noweights ();
else
/* black and white screen */
init_rgbtab_bw ();
alloc_col ();
}
static void
init_rgbtab_noweights ()
/* calculates values for the linear color spectrum black-red-yellow-white
and stores them in rbgtab */
{
double multiplier;
int rangeby3, i;
/* divide the range into three sections:
black-red, red-yellow, yellow-white */
rangeby3 = MAXCOLORS / 3;
multiplier = ((double) MAXCOLGRAN) / rangeby3;
for (i = 0; i < MAXCOLORS; i++)
{
rgbtab[i].green = 0;
rgbtab[i].blue = 0;
if (i < rangeby3)
rgbtab[i].red = (int) (i * multiplier);
else
/* second section: red to yellow */
{
rgbtab[i].red = MAXCOLGRAN;
if (i < 2 * rangeby3)
rgbtab[i].green = (int) ((i - rangeby3) * multiplier);
else
/* third section: yellow to white */
{
rgbtab[i].green = MAXCOLGRAN;
rgbtab[i].blue = (int) ((i - 2 * rangeby3) * multiplier);
}
}
}
}
static void
init_rgbtab_bw ()
/* calculates values for the linear gray scale and stores them in rbgtab */
{
double multiplier;
int i;
/* straight scale from black to white */
multiplier = ((double) MAXCOLGRAN) / MAXCOLORS;
for (i = 0; i < MAXCOLORS; i++)
rgbtab[i].green = rgbtab[i].blue = rgbtab[i].red
= (int) (i * multiplier);
}
static void
alloc_col ()
/* allocate colors from rgbtab until no more free cells,
using existing colors if they match what we want */
{
int start = MAXCOLORS / 2; /* starting offset in an alloc sweep */
int d = MAXCOLORS; /* increment in an alloc sweep */
int j, /* index to the linear spectrum */
k; /* number of colors allocated */
for (j = 0; j < MAXCOLORS; j++)
cmap[j] = NONE;
k = 0;
/* add colors to cmap, keep them uniformly distributed in the range,
and gradually make the spectrum more refined */
while (d > 1)
{
/* add colors to cmap with d as the current distance
between new colors in the spectrum and start as the first location */
j = start;
while (j < MAXCOLORS) /* completed a sweep of new colors */
{
colors[k].flags = DoRed | DoGreen | DoBlue; /* use all planes */
colors[k].red = rgbtab[j].red;
colors[k].green = rgbtab[j].green;
colors[k].blue = rgbtab[j].blue;
cmap[j] = k;
if (XAllocColor (theDisplay, colormap, &(colors[k])) == 0)
{
cmap[j] = NONE;
clean_color_map(k);
return;
}
k++; /* allocated one new color */
j += d; /* next location in the spectrum */
}
d /= 2; /* set up a tighter distance */
start /= 2; /* start lower in the spectrum */
}
clean_color_map(k); /* set # of colors, clean up */
}
static void
clean_color_map(k)
/* set the number of colors, print message, and clean up the map */
int k; /* number of colors allocated */
{
int i, m; /* counters for cleaning up cmap */
/* colors[k-1] is the last valid colorcell */
actual_color_range = k;
if (actual_color_range < MINCOLORS)
{
fprintf (stderr, "Warning: obtained only %d colors\n", k);
fprintf (stderr, "(consider using a private colormap)\n");
}
else
printf ("Obtained %d colors.\n", k);
/* clean up cmap; move all entries to the beginning */
m = 0;
while (m < MAXCOLORS && cmap[m] != NONE)
++m;
for (i = m + 1; i < MAXCOLORS; i++)
if (cmap[i] == NONE) /* no colorcell */
continue;
else
cmap[m] = cmap[i], ++m;
}
/********************* GCs, fonts, resizing ***********************/
static int
createGC (New_win, New_GC, fid, theFGpix, theBGpix)
/* create a new graphics context for the given window with given
font and foreground and background colors */
Window New_win; /* window for the GC */
GC *New_GC; /* return pointer to the created GC here */
Font fid; /* font id */
Pixel theFGpix, theBGpix; /* foreground and background colors */
{
XGCValues GCValues; /* graphics context parameters; not used */
*New_GC = XCreateGC (theDisplay, New_win, (unsigned long) 0, &GCValues);
if (*New_GC == 0) /* could not create */
return (FALSE);
else
{
/* set font, foreground and background */
XSetFont (theDisplay, *New_GC, fid);
XSetForeground (theDisplay, *New_GC, theFGpix);
XSetBackground (theDisplay, *New_GC, theBGpix);
return (TRUE);
}
}
static XFontStruct *
loadFont (fontName)
/* load a given font */
char fontName[]; /* name of the font */
{
XFontStruct *fontStruct; /* return font here */
if ((fontStruct = XLoadQueryFont (theDisplay, fontName)) == NULL)
{
fprintf (stderr, "Cannot load font: %s, using fixed\n", fontName);
if ((fontStruct = XLoadQueryFont (theDisplay, "fixed")) == NULL)
{
fprintf (stderr, "Cannot load fixed font\n");
exit (EXIT_X_ERROR);
}
}
return (fontStruct);
}
static void
common_resize (modi, w)
/* when resizing any net, first get the new window width and height */
int modi; /* module number */
Widget w; /* and its widget */
{
Arg args[2];
Dimension width, height;
/* get the current width and height from the server */
XtSetArg (args[0], XtNwidth, &width);
XtSetArg (args[1], XtNheight, &height);
XtGetValues (w, args, 2);
/* and store them for further calculations */
net[modi].width = width;
net[modi].height = height;
}
/********************* processing module operations ***********************/
static void
init_common_proc_display_params (modi, w)
/* initialize a number of parameters common for all processing modules */
int modi; /* module number */
Widget w; /* and its widget */
{
int i;
Win[modi] = XtWindow (w); /* get a pointer to the window */
/* calculate the number of slots at the input and output */
for (i = 0; i < ninputs[modi]; i++)
inputs[modi][i] = BLANKINDEX; /* initially all blank words */
for (i = 0; i < noutputs[modi]; i++)
targets[modi][i] = BLANKINDEX; /* initially all blank words */
/* number of assembly columns on the display */
if (modi == ANSWERPRODMOD) /* answer producer has its input assemblies */
net[modi].columns = nslot; /* in two layers: story rep is longer */
else
net[modi].columns = imax (ninputs[modi], noutputs[modi]);
}
/********************* expose event handlers */
static void
expose_sentpars (w, client_data, call_data)
/* expose event handler for sentence parser: redraw the window */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
int modi = SENTPARSMOD;
XClearWindow (theDisplay, Win[modi]);
display_title (modi, titles[modi]);
display_labels (modi, net[modi].tgtx,
net[modi].tgty + net[modi].uhght + asmboxhght,
caselabels, ncase);
display_current_proc_net (modi);
}
static void
expose_storypars (w, client_data, call_data)
/* expose event handler for story parser: redraw the window */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
int modi = STORYPARSMOD;
XClearWindow (theDisplay, Win[modi]);
display_title (modi, titles[modi]);
display_labels (modi, net[modi].inpx, titleboxhght,
caselabels, ncase);
display_labels (modi, net[modi].tgtx,
net[modi].tgty + net[modi].uhght + asmboxhght,
slotlabels, nslot);
display_current_proc_net (modi);
}
static void
expose_storygen (w, client_data, call_data)
/* expose event handler for story generator: redraw the window */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
int modi = STORYGENMOD;
XClearWindow (theDisplay, Win[modi]);
display_title (modi, titles[modi]);
display_labels (modi, net[modi].inpx,
net[modi].inpy + net[modi].uhght + asmboxhght,
slotlabels, nslot);
display_labels (modi, net[modi].outx, titleboxhght,
caselabels, ncase);
display_current_proc_net (modi);
}
static void
expose_sentgen (w, client_data, call_data)
/* expose event handler for sentence generator: redraw the window */
/* standard callback parameters, not used here */
Widget w; XtPointer client_data, call_data;
{
int modi = SENTGENMOD;
XClearWindow (theDisplay, Win[modi]);
display_title (modi, titles[modi]);
display_labels (modi, net[modi].inpx,
net[modi].inpy + net[modi].uhght + asmboxhght,
caselabels, ncase);
display_current_proc_net (modi);
}
static void
expose_cueformer (w, client_data, call_data)
/* expose event handler for cue former: redraw the window */
/* standard callback parameters, not used here */