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browse.c
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browse.c
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#include "browse.h"
#include <string.h>
#include <strings.h>
#include "parserslow.h"
#include <sys/time.h>
#include "ggets.h"
#include "dialog_box.h"
#include "eig_list.h"
#include "integrate.h"
#include "menudrive.h"
#include "init_conds.h"
#include "many_pops.h"
#include "pop_list.h"
#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/keysymdef.h>
#include <math.h>
#ifndef WCTYPE
#include <ctype.h>
#else
#include <wctype.h>
#endif
#include "xpplim.h"
#include "browse.bitmap"
#include "newhome.h"
#include "mykeydef.h"
extern char *browse_hint[];
#define xds(a) { XDrawString(display,w,small_gc,5,CURY_OFFs,a,strlen(a));\
return;}
#define BMAXCOL 20
extern int *my_ode[];
extern int *plotlist,N_plist;
extern char *ode_names[MAXODE];
double evaluate();
double atof();
extern int NEQ,MAXSTOR,NMarkov,FIX_VAR;
extern int NEQ_MIN;
extern int NODE,NJMP;
extern int Xup,TipsFlag;
extern double last_ic[MAXODE],DELTA_T;
extern int NSYM,NSYM_START,NCON,NCON_START;
extern Display *display;
extern int screen,storind;
extern GC gc, small_gc;
extern int DCURX,DCURXs,DCURY,DCURYs,CURY_OFFs,CURY_OFF;
extern unsigned int MyBackColor,MyForeColor,MyMainWinColor,MyDrawWinColor,GrFore,GrBack;
extern Window command_pop;
#define MYMASK (ButtonPressMask |\
ButtonReleaseMask |\
KeyPressMask |\
ExposureMask |\
StructureNotifyMask |\
LeaveWindowMask |\
EnterWindowMask)
#define SIMPMASK (ButtonPressMask |\
ButtonReleaseMask |\
KeyPressMask |\
ExposureMask |\
StructureNotifyMask)
/* The one and only primitive data browser */
/*typedef struct {
Window base,upper;
Window find,up,down,pgup,pgdn,home,end,left,right;
Window first,last,restore,write,get,close;
Window load,repl,unrepl,table,addcol,delcol;
Window main;
Window label[BMAXCOL];
Window time;
Window hint;
char hinttxt[256];
int dataflag,xflag;
int col0,row0,ncol,nrow;
int maxrow,maxcol;
float **data;
int istart,iend;
} BROWSER;
*/
BROWSER my_browser;
extern int noicon;
extern char uvar_names[MAXODE][12];
float *old_rep;
int REPLACE=0,R_COL=0;
float **storage;
float **get_browser_data()
{
return my_browser.data;
}
void set_browser_data(float **data,int col0)
{
my_browser.data=data;
my_browser.col0=col0;
}
float *get_data_col(int c)
{
return my_browser.data[c];
}
/*Excerpt from the man (Section 2) for gettimeofday:
"The use of the timezone structure is obsolete; the tz argument should normally be spec-
ified as NULL. The tz_dsttime field has never been used under Linux; it has not been
and will not be supported by libc or glibc. Each and every occurrence of this field in
the kernel source (other than the declaration) is a bug."
*/
int gettimenow()
{
struct timeval now;
/*struct timezone tz;
gettimeofday(&now,&tz);
*/
gettimeofday(&now,NULL);
return now.tv_usec;
}
void waitasec(msec)
int msec;
{
struct timeval tim;
/*struct timezone tz;*/
double sec=(double)msec/1000;
double t1,t2;
gettimeofday(&tim,NULL);
t1=tim.tv_sec+(tim.tv_usec/1000000.0);
while(1)
{
gettimeofday(&tim,NULL);
t2=tim.tv_sec+(tim.tv_usec/1000000.0);
if((t2-t1)>sec)
return;
}
}
int get_maxrow_browser()
{
return my_browser.maxrow;
}
void write_mybrowser_data(FILE *fp)
{
write_browser_data(fp,&my_browser);
}
void write_browser_data(fp,b)
FILE *fp;
BROWSER *b;
{
int i,j,l;
for(i=b->istart;i<b->iend;i++){
if(N_plist>0){
for(l=0;l<N_plist;l++){
j=plotlist[l];
fprintf(fp,"%.8g ",b->data[j][i]);
}
}
else {
for(j=0;j<b->maxcol;j++)fprintf(fp,"%.8g ",b->data[j][i]);
}
fprintf(fp,"\n");
}
}
int check_for_stor(data)
float **data;
{
if(data!=storage){
err_msg("Only data can be in browser");
return(0);
}
else return(1);
}
void del_stor_col(var,b)
BROWSER *b;
char *var;
{
int nc;
int i,j;
find_variable(var,&nc);
if(nc<0) {
err_msg("No such column....");
return;
}
if(nc<=NEQ_MIN){ /* NEQ_MIN = NODE+NAUX */
err_msg("Can't delete that column");
return;
}
if(check_active_plot(nc)==1){
err_msg("This variable is still actively plotted! - Cant delete!");
return;
}
/* plintf(" nc=%d NEQ= %d\n",nc,NEQ); */
change_plot_vars(nc);
if(nc<NEQ){
for(j=nc;j<NEQ;j++){
for(i=0;i<b->maxrow;i++)
storage[j][i]=storage[j+1][i];
for(i=0;i<400;i++)
my_ode[j-1+FIX_VAR][i]=my_ode[j+FIX_VAR][i];
strcpy(uvar_names[j-1],uvar_names[j]);
strcpy(ode_names[j-1],ode_names[j]);
}
}
free(storage[NEQ+1]);
free(ode_names[NEQ]);
free(my_ode[NEQ+FIX_VAR]);
NEQ--;
b->maxcol=NEQ+1;
redraw_browser(*b);
}
void data_del_col(b) /* this only works with storage */
BROWSER *b;
{ Window w;
int rev,status;
char var[20];
if(check_for_stor(b->data)==0)return;
XGetInputFocus(display,&w,&rev);
err_msg("Sorry - not working very well yet...");
return;
strcpy(var,"");
status=get_dialog("Delete","Name",var,"Ok","Cancel",20);
if(status!=0)
del_stor_col(var,b);
}
void data_add_col(b)
BROWSER *b;
{
Window w;
int rev,status;
char var[20],form[80];
if(check_for_stor(b->data)==0)return;
XGetInputFocus(display,&w,&rev);
strcpy(var,"");
strcpy(form,"");
status=get_dialog("Add Column","Name",var,"Ok","Cancel",20);
if(status!=0){
status=get_dialog("Add Column","Formula:",form,"Add it","Cancel",80);
if(status!=0)
add_stor_col(var,form,b);
}
}
int add_stor_col(name,formula,b)
char *name,*formula;
BROWSER *b;
{
int com[4000],i,j;
if(add_expr(formula,com,&i)){
err_msg("Bad Formula .... ");
return(0);
}
if((my_ode[NEQ+FIX_VAR]=(int *)malloc((i+2)*sizeof(int)))==NULL){
err_msg("Cant allocate formula space");
return(0);
}
if((storage[NEQ+1]=(float *)malloc(MAXSTOR * sizeof(float)))==NULL){
err_msg("Cant allocate space ....");
free(my_ode[NEQ]);
return(0);
}
if((ode_names[NEQ]=(char *)malloc(80))==NULL){
err_msg("Cannot allocate space ...");
free(my_ode[NEQ]);
free(storage[NEQ+1]);
return(0);
}
strcpy(ode_names[NEQ],formula);
strupr(ode_names[NEQ]);
for(j=0;j<=i;j++)
my_ode[NEQ+FIX_VAR][j]=com[j];
strcpy(uvar_names[NEQ],name);
strupr(uvar_names[NEQ]);
for(i=0;i<b->maxrow;i++)
storage[NEQ+1][i]=0.0; /* zero it all */
for(i=0;i<b->maxrow;i++){
for(j=0;j<NODE+1;j++)set_ivar(j,(double)storage[j][i]);
for(j=NODE;j<NEQ;j++)set_val(uvar_names[j],(double)storage[j+1][i]);
storage[NEQ+1][i]=(float)evaluate(com);
}
add_var(uvar_names[NEQ],0.0); /* this could be trouble .... */
NEQ++;
b->maxcol=NEQ+1;
redraw_browser(*b);
return(1);
}
void chk_seq(char *f,int *seq, double *a1, double *a2)
{
int i,j=-1;
char n1[256],n2[256];
int n=strlen(f);
*seq=0;
*a1=0.0;
*a2=0.0;
for(i=0;i<n;i++)
{
if(f[i]==':'){
*seq=1;
j=i;
}
if(f[i]==';'){
*seq=2;
j=i;
}
}
if(j>-1){
for(i=0;i<j;i++)
n1[i]=f[i];
n1[j]=0;
for(i=j+1;i<n;i++)
n2[i-j-1]=f[i];
n2[n-j-1]=0;
*a1=atof(n1);
*a2=atof(n2);
}
/* plintf("seq=%d a1=%g a2=%g\n",*seq,*a1,*a2); */
}
void replace_column(var,form,dat,n)
char *form,*var;
float **dat;
int n;
{
int com[200],i,j;
int intflag=0;
int dif_var=-1;
int seq=0;
double a1,a2,da=0.0;
float old=0.0,dt,derv=0.0;
float sum=0.0;
if(n<2)return;
dt=NJMP*DELTA_T;
/* first check for derivative or integral symbol */
i=0;
while(i<strlen(form)){
if(!isspace(form[i]))break;
i++;
}
if(form[i]=='&'){ intflag=1; form[i]=' ';}
if(form[i]=='@'){
form[i]=' ';
find_variable(form,&dif_var);
if(dif_var<0){
err_msg("No such variable");
return;
}
}
if(dif_var<0)
chk_seq(form,&seq,&a1,&a2);
if(seq==1){
if(a1==a2)
seq=3;
else
da=(a2-a1)/((double)(n-1));
}
if(seq==2)
da=a2;
if(seq==3){
err_msg("Illegal sequence");
return;
}
/* first compile formula ... */
if(dif_var<0&&seq==0){
if(add_expr(form,com,&i)){
NCON=NCON_START;
NSYM=NSYM_START;
err_msg("Illegal formula...");
return;
}
}
/* next check to see if column is known ... */
find_variable(var,&i);
if(i<0){
err_msg("No such column...");
NCON=NCON_START;
NSYM=NSYM_START;
return;
}
R_COL=i;
/* Okay the formula is cool so lets allocate and replace */
wipe_rep();
old_rep=(float *)malloc(sizeof(float)*n);
REPLACE=1;
for(i=0;i<n;i++)
{
old_rep[i]=dat[R_COL][i];
if(dif_var<0)
{
if(seq==0)
{
for(j=0;j<NODE+1;j++)set_ivar(j,(double)dat[j][i]);
for(j=NODE;j<NEQ;j++)set_val(uvar_names[j],(double)dat[j+1][i]);
if(intflag)
{
sum+=(float)evaluate(com);
dat[R_COL][i]=sum*dt;
}
else
dat[R_COL][i]=(float)evaluate(com);
}
else
{
dat[R_COL][i]=(float)(a1+i*da);
}
}
else
{
if(i==0)derv=(dat[dif_var][1]-dat[dif_var][0])/dt;
if(i==(n-1))derv=(dat[dif_var][i]-old)/dt;
/* if(i>0&&i<(n-1))derv=(dat[dif_var][i+1]-old)/(2*dt); */
if(i>0&&i<(n-1))derv=(dat[dif_var][i+1]-dat[dif_var][i])/dt;
old=dat[dif_var][i];
dat[R_COL][i]=derv;
}
}
NCON=NCON_START;
NSYM=NSYM_START;
}
void wipe_rep()
{
if(!REPLACE)return;
free(old_rep);
REPLACE=0;
}
void unreplace_column()
{
int i,n=my_browser.maxrow;
if(!REPLACE)return;
for(i=0;i<n;i++)my_browser.data[R_COL][i]=old_rep[i];
wipe_rep();
}
void make_d_table(xlo,xhi,col,filename,b)
int col;
double xlo,xhi;
char *filename;
BROWSER b;
{
int i,npts,ok;
FILE *fp;
open_write_file(&fp,filename,&ok);
if(!ok)return;
npts=b.iend-b.istart;
fprintf(fp,"%d\n",npts);
fprintf(fp,"%g\n%g\n",xlo,xhi);
for(i=0;i<npts;i++)
fprintf(fp,"%10.10g\n",b.data[col][i+b.istart]);
fclose(fp);
ping();
}
void find_value(col,val,row,b)
int col,*row;
float val;
BROWSER b;
{
int n=b.maxrow;
int i;
int ihot=0;
float err,errm;
errm=fabs(b.data[col][0]-val);
for(i=b.row0;i<n;i++){
err=fabs(b.data[col][i]-val);
if(err<errm){
ihot=i;
errm=err;
}
}
*row=ihot;
}
void find_variable(s,col)
char *s;
int *col;
{
*col=-1;
if(strcasecmp("T",s)==0){
*col=0;
return;
}
*col=find_user_name(2,s);
if(*col>-1)*col=*col+1;
}
void browse_but_on(b,i,w,yn)
int i;
Window w;
int yn;
BROWSER *b;
{
int val=1;
if(yn)val=2;
XSetWindowBorderWidth(display,w,val);
if(yn&&TipsFlag&&i>=0){
strcpy(b->hinttxt,browse_hint[i]);
display_browser(b->hint,*b);
}
}
void enter_browser(ev,b,yn)
XEvent ev;
BROWSER *b;
int yn;
{
Window w=ev.xexpose.window;
if(w==b->find)browse_but_on(b,0,w,yn);
if(w==b->up)browse_but_on(b,1,w,yn);
if(w==b->down)browse_but_on(b,2,w,yn);
if(w==b->pgup)browse_but_on(b,3,w,yn);
if(w==b->pgdn)browse_but_on(b,4,w,yn);
if(w==b->left)browse_but_on(b,5,w,yn);
if(w==b->right)browse_but_on(b,6,w,yn);
if(w==b->home)browse_but_on(b,7,w,yn);
if(w==b->end)browse_but_on(b,8,w,yn);
if(w==b->first)browse_but_on(b,9,w,yn);
if(w==b->last)browse_but_on(b,10,w,yn);
if(w==b->restore)browse_but_on(b,11,w,yn);
if(w==b->write)browse_but_on(b,12,w,yn);
if(w==b->get)browse_but_on(b,13,w,yn);
if(w==b->repl)browse_but_on(b,14,w,yn);
if(w==b->unrepl)browse_but_on(b,15,w,yn);
if(w==b->table)browse_but_on(b,16,w,yn);
if(w==b->load)browse_but_on(b,17,w,yn);
if(w==b->time)browse_but_on(b,18,w,yn);
if(w==b->addcol)browse_but_on(b,19,w,yn);
if(w==b->delcol)browse_but_on(b,20,w,yn);
if(w==b->close)browse_but_on(b,-1,w,yn);
}
void display_browser(w,b)
Window w;
BROWSER b;
{
int i,i0;
if(w==b.hint){
XClearWindow(display,b.hint);
XDrawString(display,w,small_gc,8,CURY_OFFs,b.hinttxt,strlen(b.hinttxt));
return;
}
if(w==b.find)xds("Find")
if(w==b.up)xds("Up")
if(w==b.down)xds("Down")
if(w==b.pgup)xds("PgUp")
if(w==b.pgdn)xds("PgDn")
if(w==b.left)xds("Left")
if(w==b.right)xds("Right")
if(w==b.home)xds("Home")
if(w==b.end)xds("End")
if(w==b.first)xds("First")
if(w==b.last)xds("Last")
if(w==b.restore)xds("Restore")
if(w==b.write)xds("Write")
if(w==b.get)xds("Get")
if(w==b.repl)xds("Replace");
if(w==b.unrepl)xds("Unrepl");
if(w==b.table)xds("Table");
if(w==b.load)xds("Load");
if(w==b.time)xds("Time")
if(w==b.addcol)xds("Add col")
if(w==b.close)xds("Close")
if(w==b.delcol)xds("Del col")
for(i=0;i<BMAXCOL;i++){
if(w==b.label[i]){
i0=i+b.col0-1;
if(i0<b.maxcol-1) XDrawString(display,w,small_gc,5,CURY_OFFs,
uvar_names[i0],strlen(uvar_names[i0]));
}
}
if(w==b.main)draw_data(b);
}
void redraw_browser(b)
BROWSER b;
{
int i,i0;
Window w;
draw_data(b);
for(i=0;i<BMAXCOL;i++){
w=b.label[i];
i0=i+b.col0-1;
if(i0<(b.maxcol-1)){
XClearWindow(display,w);
XDrawString(display,w,small_gc,5,CURY_OFFs,uvar_names[i0],
strlen(uvar_names[i0]));
}
}
}
void new_browse_dat(new_dat,dat_len)
int dat_len;
float **new_dat;
{
my_browser.data=new_dat;
refresh_browser(dat_len);
}
void refresh_browser(length)
int length;
{
my_browser.dataflag=1;
my_browser.maxrow=length;
my_browser.iend=length;
if(Xup&&my_browser.xflag==1) draw_data(my_browser);
}
void reset_browser()
{
my_browser.maxrow=0;
my_browser.dataflag=0;
}
void draw_data(b)
BROWSER b;
{
int i,i0,j,j0;
int x0;
char string[50];
int dcol=DCURXs*14;
int drow=(DCURYs+6);
if(b.dataflag==0)return; /* no data */
XClearWindow(display,b.main);
/* Do time data first */
for(i=0;i<b.nrow;i++){
i0=i+b.row0;
if(i0<b.maxrow){
sprintf(string,"%.8g",b.data[0][i0]);
XDrawString(display,b.main,small_gc,DCURXs/2+5,i*drow+DCURYs
,
string,strlen(string));
}
}
/* Do data stuff */
for(j=0;j<b.ncol;j++)
{
x0=(j+1)*dcol+DCURXs/2;
j0=j+b.col0;
if(j0>=b.maxcol)return; /* if this one is too big, they all are */
for(i=0;i<b.nrow;i++){
i0=i+b.row0;
if(i0<b.maxrow){
sprintf(string,"%.7g",b.data[j0][i0]);
XDrawString(display,b.main,small_gc,x0+5,i*drow+DCURYs,
string,strlen(string));
}
}
}
}
void init_browser()
{
my_browser.dataflag=0;
my_browser.data=storage;
my_browser.maxcol=NEQ+1;
my_browser.maxrow=0;
my_browser.col0=1;
my_browser.row0=0;
my_browser.istart=0;
my_browser.iend=0;
strcpy(my_browser.hinttxt,"hint");
}
void kill_browser(BROWSER *b)
{
b->xflag=0;
waitasec(ClickTime);
XDestroySubwindows(display,b->base);
XDestroyWindow(display,b->base);
}
void make_new_browser()
{
if(my_browser.xflag==1){
XRaiseWindow(display,my_browser.base);
return;
}
make_browser(&my_browser,"Data Viewer","Data",20,5);
my_browser.xflag=1;
}
Window br_button(root,row,col,name,iflag)
int row,col,iflag;
Window root;
char *name;
{
Window win;
int dcol=12*DCURXs;
int drow=(DCURYs+6);
/*int width=strlen(name)*DCURXs;
*/
int width=8*DCURXs;
int x;
int y;
if(iflag==1)dcol=14*DCURXs;
x=dcol*col+4;
y=drow*row+4;
win=make_window(root,x,y,width+5,DCURYs+1,1);
XSelectInput(display,win,MYMASK);
return(win);
}
Window br_button_data(root,row,col,name,iflag)
int row,col,iflag;
Window root;
char *name;
{
Window win;
int dcol=12*DCURXs;
int drow=(DCURYs+6);
int width=strlen(name)*DCURXs;
int x;
int y;
if(iflag==1)dcol=14*DCURXs;
x=dcol*col+4;
y=drow*row+4;
win=make_window(root,x,y,width+5,DCURYs+1,1);
XSelectInput(display,win,MYMASK);
return(win);
}
void make_browser(b,wname,iname,row,col)
BROWSER *b;
int row,col;
char *wname,*iname;
{
int i;
int ncol=col;
int width,height;
Window base;
/* XWMHints wm_hints;
*/
XTextProperty winname,iconname;
XSizeHints size_hints;
int dcol=DCURXs*17;
int drow=(DCURYs+6);
int ystart=8;
if(ncol<5)ncol=5;
height=drow*(row+6);
width=ncol*dcol;
b->nrow=row;
b->ncol=ncol;
base=make_plain_window(RootWindow(display,screen),0,0,width,height,4);
b->base=base;
XSelectInput(display,base,ExposureMask|KeyPressMask|ButtonPressMask|
StructureNotifyMask);
/* plintf("Browser base: %d \n",base); */
XStringListToTextProperty(&wname,1,&winname);
XStringListToTextProperty(&iname,1,&iconname);
size_hints.flags=PPosition|PSize|PMinSize;
size_hints.x=0;
size_hints.y=0;
/* size_hints.width=width;
size_hints.height=height; */
size_hints.min_width=width-15;
size_hints.min_height=height;
/* wm_hints.initial_state=IconicState;
wm_hints.flags=StateHint;
*/
XClassHint class_hints;
class_hints.res_name="";
class_hints.res_class="";
XSetWMProperties(display,base,&winname,&iconname,NULL,0,&size_hints,NULL,&class_hints);
make_icon((char*)browse_bits,browse_width,browse_height,base);
b->upper=make_window(base,0,0,width,ystart+drow*6,1);
XSetWindowBackground(display,b->upper,MyMainWinColor);
b->main=make_plain_window(base,0,ystart+drow*6,width,row*drow,1);
XSetWindowBackground(display,b->main,MyDrawWinColor);
b->find=br_button(base,0,0,"find",0);
b->get=br_button(base,1,0,"get ",0);
b->repl=br_button(base,2,0,"replace",0);
b->restore=br_button(base,0,1,"restore",0);
b->write=br_button(base,1,1," write ",0);
b->load=br_button(base,2,1," load ",0);
b->first=br_button(base,0,2,"first",0);
b->last=br_button(base,1,2,"last ",0);
b->unrepl=br_button(base,2,2,"unrepl",0);
b->table=br_button(base,2,3,"table",0);
b->up=br_button(base,0,3," up ",0);
b->down=br_button(base,1,3,"down",0);
b->pgup=br_button(base,0,4,"pgup",0);
b->pgdn=br_button(base,1,4,"pgdn",0);
b->left=br_button(base,0,5,"left ",0);
b->right=br_button(base,1,5,"right",0);
b->home=br_button(base,0,6,"home",0);
b->end=br_button(base,1,6,"end ",0);
b->addcol=br_button(base,2,4,"addcol",0);
b->delcol=br_button(base,2,5,"delcol",0);
b->close=br_button(base,2,6,"close",0);
b->time=br_button(base,5,0,"time ",1);
b->hint=make_window(base,0,4*drow,width-17,drow-3,1);
XSelectInput(display,b->time,SIMPMASK);
for(i=0;i<BMAXCOL;i++){
/* plintf("%d ",i); */
b->label[i]=br_button_data(base,5,i+1,"1234567890",1);
XSelectInput(display,b->label[i],SIMPMASK);
/* plintf(" %d \n",i); */
}
if(noicon==0)XIconifyWindow(display,base,screen);
/* XMapWindow(display,base); */
}
/* These are the global exporters ... */
void expose_my_browser(ev)
XEvent ev;
{
if(my_browser.xflag==0)return;
expose_browser(ev,my_browser);
}
void enter_my_browser(ev,yn)
XEvent ev;
int yn;
{
if(my_browser.xflag==0)return;
enter_browser(ev,&my_browser,yn);
}
void my_browse_button(ev)
XEvent ev;
{
if(my_browser.xflag==0)return;
browse_button(ev,&my_browser);
}
void my_browse_keypress(ev,used)
int *used;
XEvent ev;
{
if(my_browser.xflag==0)return;
browse_keypress(ev,used,&my_browser);
}
void resize_my_browser(win)
Window win;
{
if(my_browser.xflag==0)return;
resize_browser(win,&my_browser);
}
void expose_browser(ev,b)
XEvent ev;
BROWSER b;
{
if(my_browser.xflag==0)return;
if(ev.type!=Expose)return;
display_browser(ev.xexpose.window,b);
}
void resize_browser(win,b)
Window win;
BROWSER *b;
{
unsigned int w,h,hreal;
int dcol=17*DCURXs,drow=DCURYs+6;
int i0;
int newrow,newcol;
if(my_browser.xflag==0)return;
if(win!=b->base)return;
/* w=ev.xconfigure.width;
h=ev.xconfigure.height; */
get_new_size(win,&w,&h);
hreal=h;
/* first make sure the size is is ok and an integral
value of the proper width and height
*/
i0=w/dcol;
if((w%dcol)>0)i0++;
if(i0>b->maxcol)i0=b->maxcol;
w=i0*dcol;
if(i0<5)w=5*dcol;
newcol=i0;
h=hreal-8-5*drow;
i0=h/drow;
if((h%drow)>0)i0++;