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/* Functionality for a bar across the bottom of the screen listing the
* windows currently managed.
*
* Copyright (C) 2000, 2001 Shawn Betts
*
* This file is part of ratpoison.
*
* ratpoison is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* ratpoison is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*/
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ratpoison.h"
#include "assert.h"
/* Possible values for bar_is_raised status. */
#define BAR_IS_WINDOW_LIST 1
#define BAR_IS_MESSAGE 2
/* Hide the bar from sight. */
int
hide_bar (screen_info *s)
{
if (s->bar_is_raised)
{
s->bar_is_raised = 0;
XUnmapWindow (dpy, s->bar_window);
return 1;
}
return 0;
}
/* Show window listing in bar. */
int
show_bar (screen_info *s)
{
if (!s->bar_is_raised)
{
s->bar_is_raised = BAR_IS_WINDOW_LIST;
XMapWindow (dpy, s->bar_window);
update_window_names (s);
/* Set an alarm to auto-hide the bar BAR_TIMEOUT seconds later */
alarm (BAR_TIMEOUT);
return 1;
}
/* If the bar is raised we still need to display the window
names. */
update_window_names (s);
return 0;
}
int
bar_x (screen_info *s, int width)
{
if (BAR_LOCATION >= 2) return s->root_attr.width - width - 2;
else return 0;
}
int
bar_y (screen_info *s)
{
if (BAR_LOCATION % 2) return 0;
else return s->root_attr.height - (FONT_HEIGHT (s->font) + BAR_Y_PADDING * 2) - 2;
}
void
update_window_names (screen_info *s)
{
static struct sbuf *bar_buffer = NULL;
rp_window *w;
char dbuf[10];
int mark_start = 0;
int mark_end = 0;
if (!s->bar_is_raised) return;
if (bar_buffer == NULL)
bar_buffer = sbuf_new (0);
sbuf_clear (bar_buffer);
for (w = rp_window_tail; w; w = w->prev)
{
PRINT_DEBUG ("%d-%s\n", w->number, w->name);
if (w->state == STATE_UNMAPPED) continue;
if (w == rp_current_window)
mark_start = strlen (sbuf_get (bar_buffer));
sbuf_concat (bar_buffer, " ");
sprintf (dbuf, "%d", w->number);
sbuf_concat (bar_buffer, dbuf);
if (w == rp_current_window)
sbuf_concat (bar_buffer, "*");
else
sbuf_concat (bar_buffer, "-");
sbuf_concat (bar_buffer, w->name);
sbuf_concat (bar_buffer, " ");
if (w == rp_current_window)
mark_end = strlen (sbuf_get (bar_buffer));
}
if (!strcmp (sbuf_get (bar_buffer), ""))
{
sbuf_copy (bar_buffer, MESSAGE_NO_MANAGED_WINDOWS);
}
display_msg_in_bar (s, sbuf_get (bar_buffer), mark_start, mark_end);
}
void
display_msg_in_bar (screen_info *s, char *msg, int mark_start, int mark_end)
{
XGCValues lgv;
GC lgc;
unsigned long mask;
int width = BAR_X_PADDING * 2 + XTextWidth (s->font, msg, strlen (msg));
int height = (FONT_HEIGHT (s->font) + BAR_Y_PADDING * 2);
PRINT_DEBUG ("%s\n", msg);
/* Map the bar if needed */
if (!s->bar_is_raised)
{
s->bar_is_raised = BAR_IS_MESSAGE;
XMapWindow (dpy, s->bar_window);
}
/* Reset the alarm to auto-hide the bar in BAR_TIMEOUT seconds. */
alarm (BAR_TIMEOUT);
XMoveResizeWindow (dpy, s->bar_window,
bar_x (s, width), bar_y (s),
width,
height);
XClearWindow (dpy, s->bar_window);
XRaiseWindow (dpy, s->bar_window);
XDrawString (dpy, s->bar_window, s->normal_gc,
BAR_X_PADDING,
BAR_Y_PADDING + s->font->max_bounds.ascent,
msg, strlen (msg));
/* xor the string representing the current window */
if (mark_start != mark_end)
{
int start;
int end;
assert (mark_start <= mark_end); /* FIXME: remove these assertions,
make it work in all cases */
assert (mark_start <= strlen(msg) + 1);
assert (mark_end <= strlen(msg) + 1);
start = XTextWidth (s->font, msg, mark_start);
end = XTextWidth (s->font, msg + mark_start, mark_end - mark_start);
PRINT_DEBUG ("%d %d strlen(%d)==> %d %d\n", mark_start, mark_end, strlen(msg), start, end);
lgv.foreground = gv.foreground;
lgv.function = GXxor;
mask = GCForeground | GCFunction;
lgc = XCreateGC(dpy, s->root, mask, &lgv);
XFillRectangle (dpy, s->bar_window, lgc, start, 0, end, height);
lgv.foreground = gv.background;
lgc = XCreateGC(dpy, s->root, mask, &lgv);
XFillRectangle (dpy, s->bar_window, lgc, start, 0, end, height);
}
}
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