quakeforge/libs/ui/view.c

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/*
view.c
console view object
Copyright (C) 2003 Bill Currie
Author: Bill Currie <bill@taniwha.org>
Date: 2003/5/5
This program 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
of the License, or (at your option) any later version.
This program 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 program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include "QF/ui/view.h"
static void
setgeometry (view_t *view)
{
int i;
view_t *par = view->parent;
if (!par) {
view->xabs = view->xrel = view->xpos;
view->yabs = view->yrel = view->ypos;
if (view->setgeometry)
view->setgeometry (view);
for (i = 0; i < view->num_children; i++)
setgeometry (view->children[i]);
return;
}
switch (view->gravity) {
case grav_center:
view->xrel = view->xpos + (par->xlen - view->xlen) / 2;
view->yrel = view->ypos + (par->ylen - view->ylen) / 2;
break;
case grav_north:
view->xrel = view->xpos + (par->xlen - view->xlen) / 2;
view->yrel = view->ypos;
break;
case grav_northeast:
view->xrel = par->xlen - view->xpos - view->xlen;
view->yrel = view->ypos;
break;
case grav_east:
view->xrel = par->xlen - view->xpos - view->xlen;
view->yrel = view->ypos + (par->ylen - view->ylen) / 2;
break;
case grav_southeast:
view->xrel = par->xlen - view->xpos - view->xlen;
view->yrel = par->ylen - view->ypos - view->ylen;
break;
case grav_south:
view->xrel = view->xpos + (par->xlen - view->xlen) / 2;
view->yrel = par->ylen - view->ypos - view->ylen;
break;
case grav_southwest:
view->xrel = view->xpos;
view->yrel = par->ylen - view->ypos - view->ylen;
break;
case grav_west:
view->xrel = view->xpos;
view->yrel = view->ypos + (par->ylen - view->ylen) / 2;
break;
case grav_northwest:
view->xrel = view->xpos;
view->yrel = view->ypos;
break;
}
view->xabs = par->xabs + view->xrel;
view->yabs = par->yabs + view->yrel;
if (view->setgeometry)
view->setgeometry (view);
for (i = 0; i < view->num_children; i++)
setgeometry (view->children[i]);
}
VISIBLE view_t *
view_new (int xp, int yp, int xl, int yl, grav_t grav)
{
view_t *view = calloc (1, sizeof (view_t));
view->xpos = xp;
view->ypos = yp;
view->xlen = xl;
view->ylen = yl;
view->gravity = grav;
view->visible = 1;
view->draw = view_draw;
setgeometry (view);
return view;
}
VISIBLE void
view_insert (view_t *par, view_t *view, int pos)
{
view->parent = par;
if (pos < 0)
pos = par->num_children + 1 + pos;
if (pos < 0)
pos = 0;
if (pos > par->num_children)
pos = par->num_children;
if (par->num_children == par->max_children) {
par->max_children += 8;
par->children = realloc (par->children,
par->max_children * sizeof (view_t *));
memset (par->children + par->num_children, 0,
(par->max_children - par->num_children) * sizeof (view_t *));
}
memmove (par->children + pos + 1, par->children + pos,
(par->num_children - pos) * sizeof (view_t *));
par->num_children++;
par->children[pos] = view;
setgeometry (view);
}
VISIBLE void
view_add (view_t *par, view_t *view)
{
view_insert (par, view, -1);
}
VISIBLE void
view_remove (view_t *par, view_t *view)
{
int i;
for (i = 0; i < par->num_children; i++) {
if (par->children[i] == view) {
memmove (par->children + i, par->children + i + 1,
(par->num_children - i - 1) * sizeof (view_t *));
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par->children [--par->num_children] = 0;
break;
}
}
}
VISIBLE void
view_delete (view_t *view)
{
if (view->parent)
view_remove (view->parent, view);
while (view->num_children)
view_delete (view->children[0]);
free (view);
}
VISIBLE void
view_draw (view_t *view)
{
int i;
for (i = 0; i < view->num_children; i++) {
view_t *v = view->children[i];
if (v->visible && v->draw)
v->draw (v);
}
}
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static void
_resize (view_t *view, int xl, int yl)
{
int i, xd, yd;
xd = xl - view->xlen;
yd = yl - view->ylen;
view->xlen = xl;
view->ylen = yl;
for (i = 0; i < view->num_children; i++) {
view_t *v = view->children[i];
if (v->resize_x && v->resize_y) {
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_resize (v, v->xlen + xd, v->ylen + yd);
} else if (v->resize_x) {
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_resize (v, v->xlen + xd, v->ylen);
} else if (v->resize_y) {
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_resize (v, v->xlen, v->ylen + yd);
}
}
}
VISIBLE void
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view_resize (view_t *view, int xl, int yl)
{
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_resize (view, xl, yl);
setgeometry (view);
}
VISIBLE void
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view_move (view_t *view, int xp, int yp)
{
view->xpos = xp;
view->ypos = yp;
setgeometry (view);
}
VISIBLE void
view_setgeometry (view_t *view, int xp, int yp, int xl, int yl)
{
view->xpos = xp;
view->ypos = yp;
_resize (view, xl, yl);
setgeometry (view);
}
VISIBLE void
view_setgravity (view_t *view, grav_t grav)
{
view->gravity = grav;
setgeometry (view);
}