NetBSD-5.0.2/dist/nvi/motif_l/m_func.c
/* $NetBSD: m_func.c,v 1.1.1.2 2008/05/18 14:31:26 aymeric Exp $ */
/*-
* Copyright (c) 1996
* Rob Zimmermann. All rights reserved.
* Copyright (c) 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "Id: m_func.c,v 8.28 2003/11/05 17:09:59 skimo Exp (Berkeley) Date: 2003/11/05 17:09:59";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <Xm/PanedW.h>
#include <Xm/ScrollBar.h>
#include <bitstring.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#undef LOCK_SUCCESS
#include "../common/common.h"
#include "../ipc/ip.h"
#include "m_motif.h"
static int
vi_addstr(int ipvi, char *str1, u_int32_t len1)
{
#ifdef TRACE
vtrace("addstr() {%.*s}\n", ipbp->len1, ipbp->str1);
#endif
/* Add to backing store. */
memcpy(CharAt(__vi_screen, __vi_screen->cury, __vi_screen->curx),
str1, len1);
memset(FlagAt(__vi_screen, __vi_screen->cury, __vi_screen->curx),
__vi_screen->color, len1);
/* Draw from backing store. */
__vi_draw_text(__vi_screen,
__vi_screen->cury, __vi_screen->curx, len1);
/* Advance the caret. */
__vi_move_caret(__vi_screen,
__vi_screen->cury, __vi_screen->curx + len1);
return (0);
}
static int
vi_attribute(int ipvi, u_int32_t val1, u_int32_t val2)
{
switch (val1) {
case SA_ALTERNATE:
/* XXX: Nothing. */
break;
case SA_INVERSE:
__vi_screen->color = val2;
break;
}
return (0);
}
static int
vi_bell(int ipvi)
{
/*
* XXX
* Future... implement visible bell.
*/
XBell(XtDisplay(__vi_screen->area), 0);
return (0);
}
static int
vi_busyon(int ipvi, char *str1, u_int32_t len1)
{
__vi_set_cursor(__vi_screen, 1);
return (0);
}
static int
vi_busyoff(int ipvi)
{
__vi_set_cursor(__vi_screen, 0);
return (0);
}
static int
vi_clrtoeol(int ipvi)
{
int len;
char *ptr;
len = __vi_screen->cols - __vi_screen->curx;
ptr = CharAt(__vi_screen, __vi_screen->cury, __vi_screen->curx);
/* Clear backing store. */
memset(ptr, ' ', len);
memset(FlagAt(__vi_screen, __vi_screen->cury, __vi_screen->curx),
COLOR_STANDARD, len);
/* Draw from backing store. */
__vi_draw_text(__vi_screen, __vi_screen->cury, __vi_screen->curx, len);
return (0);
}
static int
vi_deleteln(int ipvi)
{
int y, rows, len, height, width;
y = __vi_screen->cury;
rows = __vi_screen->rows - (y+1);
len = __vi_screen->cols * rows;
/* Don't want to copy the caret! */
__vi_erase_caret(__vi_screen);
/* Adjust backing store and the flags. */
memmove(CharAt(__vi_screen, y, 0), CharAt(__vi_screen, y+1, 0), len);
memmove(FlagAt(__vi_screen, y, 0), FlagAt(__vi_screen, y+1, 0), len);
/* Move the bits on the screen. */
width = __vi_screen->ch_width * __vi_screen->cols;
height = __vi_screen->ch_height * rows;
XCopyArea(XtDisplay(__vi_screen->area), /* display */
XtWindow(__vi_screen->area), /* src */
XtWindow(__vi_screen->area), /* dest */
__vi_copy_gc, /* context */
0, YTOP(__vi_screen, y+1), /* srcx, srcy */
width, height,
0, YTOP(__vi_screen, y) /* dstx, dsty */
);
/* Need to let X take over. */
XmUpdateDisplay(__vi_screen->area);
return (0);
}
static int
vi_discard(int ipvi)
{
/* XXX: Nothing. */
return (0);
}
static int
vi_insertln(int ipvi)
{
int y, rows, height, width;
char *from, *to;
y = __vi_screen->cury;
rows = __vi_screen->rows - (1+y);
from = CharAt(__vi_screen, y, 0),
to = CharAt(__vi_screen, y+1, 0);
/* Don't want to copy the caret! */
__vi_erase_caret(__vi_screen);
/* Adjust backing store. */
memmove(to, from, __vi_screen->cols * rows);
memset(from, ' ', __vi_screen->cols);
/* And the backing store. */
from = FlagAt(__vi_screen, y, 0),
to = FlagAt(__vi_screen, y+1, 0);
memmove(to, from, __vi_screen->cols * rows);
memset(from, COLOR_STANDARD, __vi_screen->cols);
/* Move the bits on the screen. */
width = __vi_screen->ch_width * __vi_screen->cols;
height = __vi_screen->ch_height * rows;
XCopyArea(XtDisplay(__vi_screen->area), /* display */
XtWindow(__vi_screen->area), /* src */
XtWindow(__vi_screen->area), /* dest */
__vi_copy_gc, /* context */
0, YTOP(__vi_screen, y), /* srcx, srcy */
width, height,
0, YTOP(__vi_screen, y+1) /* dstx, dsty */
);
/* clear out the new space */
XClearArea(XtDisplay(__vi_screen->area), /* display */
XtWindow(__vi_screen->area), /* window */
0, YTOP(__vi_screen, y), /* srcx, srcy */
0, __vi_screen->ch_height, /* w=full, height */
True /* no exposures */
);
/* Need to let X take over. */
XmUpdateDisplay(__vi_screen->area);
return (0);
}
static int
vi_move(int ipvi, u_int32_t val1, u_int32_t val2)
{
__vi_move_caret(__vi_screen, val1, val2);
return (0);
}
static int
vi_redraw(int ipvi)
{
__vi_expose_func(0, __vi_screen, 0);
return (0);
}
static int
vi_refresh(int ipvi)
{
/* probably ok to scroll again */
__vi_clear_scroll_block();
/* if the tag stack widget is active, set the text field there
* to agree with the current caret position.
* Note that this really ought to be done by core due to wrapping issues
*/
__vi_set_word_at_caret( __vi_screen );
/* similarly, the text ruler... */
__vi_set_text_ruler( __vi_screen->cury, __vi_screen->curx );
return (0);
}
static int
vi_quit(int ipvi)
{
if (__vi_exitp != NULL)
__vi_exitp();
return (0);
}
static int
vi_rename(int ipvi, char *str1, u_int32_t len1)
{
Widget shell;
size_t len;
const char *tail, *p;
/* For the icon, use the tail. */
for (p = str1, len = len1; len > 1; ++p, --len)
if (p[0] == '/')
tail = p + 1;
/*
* XXX
* Future: Attach a title to each screen. For now, we change
* the title of the shell.
*/
shell = __vi_screen->area;
while ( ! XtIsShell(shell) ) shell = XtParent(shell);
XtVaSetValues(shell,
XmNiconName, tail,
XmNtitle, str1,
0
);
return (0);
}
static int
vi_rewrite(int ipvi, u_int32_t val1)
{
/* XXX: Nothing. */
return (0);
}
static int
vi_scrollbar(int ipvi, u_int32_t val1, u_int32_t val2, u_int32_t val3)
{
int top, size, maximum, old_max;
/* in the buffer,
* val1 contains the top visible line number
* val2 contains the number of visible lines
* val3 contains the number of lines in the file
*/
top = val1;
size = val2;
maximum = val3;
#if 0
fprintf( stderr, "Setting scrollbar\n" );
fprintf( stderr, "\tvalue\t\t%d\n", top );
fprintf( stderr, "\tsize\t\t%d\n", size );
fprintf( stderr, "\tmaximum\t\t%d\n", maximum );
#endif
/* armor plating. core thinks there are no lines in an
* empty file, but says we are on line 1
*/
if ( top >= maximum ) {
#if 0
fprintf( stderr, "Correcting for top >= maximum\n" );
#endif
maximum = top + 1;
size = 1;
}
/* armor plating. core may think there are more
* lines visible than remain in the file
*/
if ( top+size >= maximum ) {
#if 0
fprintf( stderr, "Correcting for top+size >= maximum\n" );
#endif
size = maximum - top;
}
/* need to increase the maximum before changing the values */
XtVaGetValues( __vi_screen->scroll, XmNmaximum, &old_max, 0 );
if ( maximum > old_max )
XtVaSetValues( __vi_screen->scroll, XmNmaximum, maximum, 0 );
/* change the rest of the values without generating a callback */
XmScrollBarSetValues( __vi_screen->scroll,
top,
size,
1, /* increment */
size, /* page_increment */
False /* do not notify me */
);
/* need to decrease the maximum after changing the values */
if ( maximum < old_max )
XtVaSetValues( __vi_screen->scroll, XmNmaximum, maximum, 0 );
/* done */
return (0);
}
static int
vi_select(int ipvi, char *str1, u_int32_t len1)
{
/* XXX: Nothing. */
return (0);
}
static int
vi_split(int ipvi)
{
/* XXX: Nothing. */
return (0);
}
IPSIOPS ipsi_ops_motif = {
vi_addstr,
vi_attribute,
vi_bell,
vi_busyoff,
vi_busyon,
vi_clrtoeol,
vi_deleteln,
vi_discard,
__vi_editopt,
vi_insertln,
vi_move,
vi_quit,
vi_redraw,
vi_refresh,
vi_rename,
vi_rewrite,
vi_scrollbar,
vi_select,
vi_split,
vi_addstr,
};