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#include <stdio.h>
#include <sys/stat.h>
#include "window.h"
#include "files.h"
// read opened FILE f into char array text, with line pointers lptr
// returns : number of lines read; fina only for print
char* read_file (FILE *f, char *fina, int &n) {
struct stat st;
stat(fina, &st);
int bufsize = st.st_size;
printf("file %s (%d byte)\n",fina,bufsize);
char *buf = new char[bufsize]; // it is needed later
int c;
n = 0;
while ((c = fgetc(f)) != EOF) buf[n++] = c;
buf[n] = 0;
if (n != bufsize) { printf("error reading %s %d\n",fina,n); exit(0); }
return buf;
}
// reads a new file and displays it in ts,
// in fina the cosed file name is returned
void open_new_file(text_viewer *ts, char *fina, char *buf) {
char *defname = "*.c";
FILE *fload;
fload = open_file_interactive(defname,fina,MODE_READ);
if (fload == NULL) return;
int nc;
delete buf;
buf = read_file(fload,fina,nc);
ts->reset(buf,nc);
fclose(fload);
XStoreName(display,ts->mainw->Win,fina); // set WM name
}
int top = 0;
void spawn(const char *last_fina) { // creates a new window with the last file
int ww = 500, wh = 800;
char *fina = new char [200]; strcpy(fina,last_fina);
FILE *f = fopen(fina,"r");
if (f == NULL) { printf("cannot open file '%s'\n",fina); return; }
int nc;
char *buf = read_file(f,fina,nc);
main_window *sw = new main_window(fina,ww,wh+20);
text_viewer *tv = new text_viewer(*sw,ww,wh,0,20,buf,nc);
menu_bar *mb = new menu_bar(*sw,ww,20,0,0);
new function_button(*mb,"new file",(CB) open_new_file,tv,fina, buf);
new function_button(*mb,"spawn",(CB) spawn,fina);
// only the top window has a quit button the others have delete_buttons
// that delete the sw-window tree
// upon delete also the new arrays (lptr, text, fina) should be deleted
if (top == 0) new quit_button(*mb); else new delete_button(*mb,sw);
// to have only one main_loop :
if (top++ == 0) sw->main_loop(); else sw->RealizeChildren();
}
int main(int argc, char **argv) {
// if argument given : display it
const char *fina = (argc > 1) ? argv[1] : "files.c";
spawn(fina) ;
}
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