280 lines
6.4 KiB
C
280 lines
6.4 KiB
C
/*
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view.c
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console view object
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Copyright (C) 2003 Bill Currie
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Author: Bill Currie <bill@taniwha.org>
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Date: 2003/5/5
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "QF/cexpr.h"
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#include "QF/ui/view.h"
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static exprenum_t grav_t_enum;
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exprtype_t grav_t_type = {
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.name = "grav_t",
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.size = sizeof (grav_t),
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.data = &grav_t_enum,
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.get_string = cexpr_enum_get_string,
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};
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static grav_t grav_t_values[] = {
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grav_center,
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grav_north,
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grav_northeast,
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grav_east,
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grav_southeast,
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grav_south,
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grav_southwest,
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grav_west,
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grav_northwest,
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};
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static exprsym_t grav_t_symbols[] = {
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{ "center", &grav_t_type, grav_t_values + grav_center },
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{ "north", &grav_t_type, grav_t_values + grav_north },
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{ "northeast", &grav_t_type, grav_t_values + grav_northeast },
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{ "east", &grav_t_type, grav_t_values + grav_east },
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{ "southeast", &grav_t_type, grav_t_values + grav_southeast },
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{ "south", &grav_t_type, grav_t_values + grav_south },
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{ "southwest", &grav_t_type, grav_t_values + grav_southwest },
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{ "west", &grav_t_type, grav_t_values + grav_west },
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{ "northwest", &grav_t_type, grav_t_values + grav_northwest },
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{}
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};
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static exprtab_t grav_t_symtab = {
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grav_t_symbols,
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};
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static exprenum_t grav_t_enum = {
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&grav_t_type,
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&grav_t_symtab,
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};
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static void
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setgeometry (view_t *view)
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{
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int i;
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view_t *par = view->parent;
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if (!par) {
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view->xabs = view->xrel = view->xpos;
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view->yabs = view->yrel = view->ypos;
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if (view->setgeometry)
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view->setgeometry (view);
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for (i = 0; i < view->num_children; i++)
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setgeometry (view->children[i]);
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return;
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}
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switch (view->gravity) {
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case grav_center:
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view->xrel = view->xpos + (par->xlen - view->xlen) / 2;
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view->yrel = view->ypos + (par->ylen - view->ylen) / 2;
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break;
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case grav_north:
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view->xrel = view->xpos + (par->xlen - view->xlen) / 2;
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view->yrel = view->ypos;
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break;
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case grav_northeast:
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view->xrel = par->xlen - view->xpos - view->xlen;
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view->yrel = view->ypos;
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break;
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case grav_east:
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view->xrel = par->xlen - view->xpos - view->xlen;
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view->yrel = view->ypos + (par->ylen - view->ylen) / 2;
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break;
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case grav_southeast:
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view->xrel = par->xlen - view->xpos - view->xlen;
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view->yrel = par->ylen - view->ypos - view->ylen;
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break;
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case grav_south:
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view->xrel = view->xpos + (par->xlen - view->xlen) / 2;
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view->yrel = par->ylen - view->ypos - view->ylen;
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break;
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case grav_southwest:
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view->xrel = view->xpos;
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view->yrel = par->ylen - view->ypos - view->ylen;
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break;
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case grav_west:
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view->xrel = view->xpos;
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view->yrel = view->ypos + (par->ylen - view->ylen) / 2;
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break;
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case grav_northwest:
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view->xrel = view->xpos;
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view->yrel = view->ypos;
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break;
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}
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view->xabs = par->xabs + view->xrel;
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view->yabs = par->yabs + view->yrel;
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if (view->setgeometry)
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view->setgeometry (view);
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for (i = 0; i < view->num_children; i++)
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setgeometry (view->children[i]);
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}
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VISIBLE view_t *
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view_new (int xp, int yp, int xl, int yl, grav_t grav)
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{
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view_t *view = calloc (1, sizeof (view_t));
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view->xpos = xp;
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view->ypos = yp;
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view->xlen = xl;
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view->ylen = yl;
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view->gravity = grav;
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view->visible = 1;
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view->draw = view_draw;
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setgeometry (view);
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return view;
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}
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VISIBLE void
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view_insert (view_t *par, view_t *view, int pos)
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{
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view->parent = par;
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if (pos < 0)
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pos = par->num_children + 1 + pos;
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if (pos < 0)
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pos = 0;
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if (pos > par->num_children)
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pos = par->num_children;
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if (par->num_children == par->max_children) {
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par->max_children += 8;
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par->children = realloc (par->children,
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par->max_children * sizeof (view_t *));
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memset (par->children + par->num_children, 0,
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(par->max_children - par->num_children) * sizeof (view_t *));
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}
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memmove (par->children + pos + 1, par->children + pos,
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(par->num_children - pos) * sizeof (view_t *));
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par->num_children++;
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par->children[pos] = view;
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setgeometry (view);
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}
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VISIBLE void
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view_add (view_t *par, view_t *view)
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{
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view_insert (par, view, -1);
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}
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VISIBLE void
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view_remove (view_t *par, view_t *view)
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{
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int i;
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for (i = 0; i < par->num_children; i++) {
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if (par->children[i] == view) {
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memmove (par->children + i, par->children + i + 1,
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(par->num_children - i - 1) * sizeof (view_t *));
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par->children [--par->num_children] = 0;
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break;
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}
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}
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}
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VISIBLE void
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view_delete (view_t *view)
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{
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if (view->parent)
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view_remove (view->parent, view);
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while (view->num_children)
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view_delete (view->children[0]);
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free (view->children);
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free (view);
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}
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VISIBLE void
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view_draw (view_t *view)
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{
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int i;
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for (i = 0; i < view->num_children; i++) {
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view_t *v = view->children[i];
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if (v->visible && v->draw)
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v->draw (v);
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}
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}
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static void
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_resize (view_t *view, int xl, int yl)
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{
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int i, xd, yd;
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xd = xl - view->xlen;
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yd = yl - view->ylen;
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view->xlen = xl;
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view->ylen = yl;
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for (i = 0; i < view->num_children; i++) {
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view_t *v = view->children[i];
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if (v->resize_x && v->resize_y) {
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_resize (v, v->xlen + xd, v->ylen + yd);
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} else if (v->resize_x) {
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_resize (v, v->xlen + xd, v->ylen);
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} else if (v->resize_y) {
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_resize (v, v->xlen, v->ylen + yd);
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}
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}
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}
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VISIBLE void
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view_resize (view_t *view, int xl, int yl)
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{
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_resize (view, xl, yl);
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setgeometry (view);
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}
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VISIBLE void
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view_move (view_t *view, int xp, int yp)
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{
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view->xpos = xp;
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view->ypos = yp;
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setgeometry (view);
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}
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VISIBLE void
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view_setgeometry (view_t *view, int xp, int yp, int xl, int yl)
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{
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view->xpos = xp;
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view->ypos = yp;
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_resize (view, xl, yl);
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setgeometry (view);
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}
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VISIBLE void
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view_setgravity (view_t *view, grav_t grav)
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{
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view->gravity = grav;
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setgeometry (view);
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}
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