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/* This is a program to show how mouse events can be handled by programs
running under an xterm window.
-Sam Lantinga 5/11/94
*/
#define SPLITVT_SOURCE
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "vtmouse.h"
#include "splitvt.h"
extern FILE *safe_popen(); /* From misc.c */
#ifdef MAIN
void event_loop()
{
int c, event_flag;
struct event X_event;
while ( (c=event_getc(&X_event)) != EOF ) {
if ( X_event.happening ) {
printf("\r\n************\r\n");
printf("Mouse Event: 0x%x\r\n", X_event.button_state);
printf("\tX coordinate: %d\r\n", X_event.x);
printf("\tY coordinate: %d\r\n", X_event.y);
/* One example of getting the mouse state */
printf("\tX Event: ");
switch(X_event.button_state&BUTTON_MASK) {
case RELEASE: printf("Button was released!\r\n");
break;
default: printf("Button %d was pressed!\r\n",
(X_event.button_state&BUTTON_MASK)+1);
break;
}
/* Another example of getting the mouse state */
printf("\tMouse %s buttons <%c|%c|%c>\r\n",
(BUTTON_ISSET(X_event, RELEASE) ? "released" : "pressed"),
(BUTTON_ISSET(X_event, BUTTON_1) ? 'X' : ' '),
(BUTTON_ISSET(X_event, BUTTON_2) ? 'X' : ' '),
(BUTTON_ISSET(X_event, BUTTON_3) ? 'X' : ' '));
#ifdef REPORT_SELECTION
if ( (X_event.button_state&SELECTED) == SELECTED )
printf("Selection: Start x=%d, y=%d; End x=%d, y=%d\r\n",
X_event.selection.begin_col,
X_event.selection.begin_row,
X_event.selection.end_col,
X_event.selection.end_row);
#endif /* REPORT_SELECTION */
printf("************\r\n");
} else {
if ( c == '\r' ) {
putc('\r', stdout);
putc('\n', stdout);
} else if ( c < ' ' ) {
putc('^', stdout);
putc(c+'@', stdout);
} else if ( c == 'Q' )
return;
else
putc(c, stdout);
}
}
}
int main(int argc, char *argv[])
{
if ( event_init(stdin, stdout, NULL) < 0 ) {
printf("Not running under an xterm.\n");
exit(2);
}
system("stty -echo raw");
event_loop();
system("stty -raw echo");
event_quit();
exit(0);
}
#endif
/* I/O streams default to stdin and stdout. */
static FILE *xt_input, *xt_output;
static int have_xterm=0;
static int set_title=0;
static char *old_title=NULL;
int terminal_input=0; /* Is there pending terminal input? */
static char *get_xtitle()
{
char buffer[512], *title;
FILE *pipe;
strcpy(buffer, "xterm");
if ( (title=(char *)getenv("WINDOWID")) ) {
if ( (strlen("xprop -id ")+strlen(title)+1) > 512 )
goto NoTitle;
sprintf(buffer, "xprop -id %s", title);
if ( (pipe=safe_popen(buffer, "r")) ) {
while ( fgets(buffer, 511, pipe) );
/* Last line should be 'WM_NAME(STRING) = "title"' */
if (strlen(buffer) > strlen("WM_NAME(STRING) = \"")) {
buffer[strlen(buffer)-2]='\0';
title=(buffer+strlen("WM_NAME(STRING) = \""));
strcpy(buffer, title);
} else
strcpy(buffer, "xterm");
safe_pclose(pipe);
} else NoTitle:
strcpy(buffer, "xterm");
}
if ( (title=(char *)malloc(strlen(buffer)+1)) == NULL )
return(NULL);
strcpy(title, buffer);
return(title);
}
static void set_xtitle(titlebar)
char *titlebar;
{
fprintf(xt_output, "\033]0;%s\07", titlebar);
fflush(xt_output);
}
int event_init(input, output, titlebar)
FILE *input, *output;
char *titlebar;
{
char *termtype;
/* A program can assume that input is unbuffered after this routine */
setbuf(input, NULL);
xt_input=input;
xt_output=output;
/* Check for xterm terminal type */
if ( (termtype=(char *)getenv("TERM")) && strcmp(termtype, "xterm") == 0 ) {
#ifdef REPORT_SELECTION
fprintf(xt_output, "\033[?1001h");
#else
fprintf(xt_output, "\033[?1000h");
#endif /* REPORT_SELECTION */
fflush(xt_output);
have_xterm=1;
old_title=get_xtitle();
if ( titlebar ) {
set_xtitle(titlebar);
set_title=1;
}
} else {
return(-1);
}
return(0);
}
int event_getc(X_event)
struct event *X_event;
{
#ifdef REPORT_SELECTION
static int last_row, last_col;
#endif
int c;
static char prefix[8], *next;
#ifdef SPLITVT_SOURCE
extern struct physical physical;
window *thiswin;
#endif
X_event->happening=0;
if ( have_xterm ) {
if ( terminal_input == 0 ) { /* Brand new input */
strcpy(prefix, "\033["); /* Sequence prefix */
next=prefix;
while ( (c=getc(xt_input)) != EOF ) {
if ( *next ) {
if ( c != *next ) {
*next = c;
terminal_input=(next-prefix);
next=prefix;
return(*(next++));
} else
++next;
} else
break;
}
} else { /* We already have input to return */
--terminal_input;
return(*(next++));
}
/* If we got here, we got prefix + c */
switch (c) {
case 'M': /* ^[[M%d%d%d (assume getc() is ok) */
X_event->button_state =
(getc(xt_input)-' ');
X_event->y=(getc(xt_input)-' ');
last_col=X_event->y;
X_event->x=(getc(xt_input)-' ');
last_row=X_event->x;
#ifdef REPORT_SELECTION
if (BUTTON_ISSET((*X_event), BUTTON_1))
{ /* Tell xterm to start selection */
#ifdef SPLITVT_SOURCE
if ( X_event->x < (physical.subwins[LOWER])->row_offset )
thiswin=physical.subwins[UPPER];
else if ( X_event->x > (physical.subwins[LOWER])->row_offset )
thiswin=physical.subwins[LOWER];
else { /* On separator bar -- don't start cut-paste there */
fprintf(xt_output, "\033[0;0;0;0;0T");
fflush(xt_output);
X_event->happening=1;
break;
}
fprintf(xt_output, "\033[1;%d;%d;%d;%dT",
/* startcol, startrow, */
X_event->y, X_event->x,
/* first row */
1 + thiswin->row_offset,
/* last row */
thiswin->rows + thiswin->row_offset+1);
#else
fprintf(xt_output,
"\033[1;%d;%d;%d;%dT",
/* startcol, startrow, */
X_event->y, X_event->x,
/* firstrow, lastrow */
1, 24);
#endif /* SPLITVT_SOURCE */
fflush(xt_output);
}
#endif /* REPORT_SELECTION */
X_event->happening=1;
break;
#ifdef REPORT_SELECTION
case 't': /* ^[[t%d%d */
X_event->button_state =
(RELEASE|SELECTED);
X_event->selection.begin_row=last_row;
X_event->selection.begin_col=last_col;
X_event->selection.end_col =
(getc(xt_input)-' ');
X_event->selection.end_row =
(getc(xt_input)-' ');
X_event->happening=1;
break;
case 'T': /* ^[[T%d%d%d%d%d%d */
X_event->y=(getc(xt_input)-' ');
X_event->x=(getc(xt_input)-' ');
X_event->button_state =
(RELEASE|SELECTED);
X_event->selection.begin_col =
(getc(xt_input)-' ');
X_event->selection.begin_row =
(getc(xt_input)-' ');
X_event->selection.end_col =
(getc(xt_input)-' ');
X_event->selection.end_row =
(getc(xt_input)-' ');
X_event->happening=1;
break;
#endif /* REPORT_SELECTION */
case EOF: /* We got EOF, return EOF */
return(EOF);
break;
default: /* It's not an event sequence */
*next = c;
terminal_input=(next-prefix);
next=prefix;
return(*(next++));
break;
}
} else
return(getc(xt_input));
return(0);
}
void event_quit()
{
if ( have_xterm ) {
#ifdef REPORT_SELECTION
fprintf(xt_output, "\033[?1001l");
#else
fprintf(xt_output, "\033[?1000l");
#endif /* REPORT_SELECTION */
fflush(xt_output);
if ( set_title && old_title ) {
set_xtitle(old_title);
(void) free(old_title);
}
}
}
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