142 lines
2.6 KiB
C
142 lines
2.6 KiB
C
/*
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* layout.c
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*
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* libhtml - HTML->X renderer
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*
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* Copyright (c) 1995-1997, John Kilburg <john@cs.unlv.edu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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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. See the
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* GNU General Public License for more details.
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*
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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 the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "port_before.h"
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#include <stdio.h>
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#include <ctype.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include "port_after.h"
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#include "html.h"
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/*
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* HTMLDestroyBox
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*/
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void
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HTMLDestroyBox(li, box)
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HTMLInfo li;
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HTMLBox box;
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{
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if (box->destroy != NULL) (box->destroy)(li, box);
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return;
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}
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/*
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* HTMLCreateBox
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*/
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HTMLBox
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HTMLCreateBox(li, env)
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HTMLInfo li;
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HTMLEnv env;
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{
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HTMLBox box;
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box = (HTMLBox)MPCGet(li->mp, sizeof(struct HTMLBoxP));
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box->env = env;
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return(box);
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}
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/*
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* HTMLRenderBox
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*/
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void
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HTMLRenderBox(li, r, box)
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HTMLInfo li;
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Region r;
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HTMLBox box;
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{
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Region xr;
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int x, y;
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unsigned int width, height;
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XRectangle rec;
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if (box->render == NULL) return;
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if (r == NULL)
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{
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GUIGetOnScreenDimensions(li->wd, &x, &y, &width, &height);
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r = XCreateRegion();
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rec.x = (short)x;
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rec.y = (short)y;
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rec.width = (unsigned short)width;
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rec.height = (unsigned short)height;
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XUnionRectWithRegion(&rec, r, r);
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xr = r;
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}
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else xr = NULL;
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if (XRectInRegion(r, box->x, box->y, box->width, box->height))
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{
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(box->render)(li, box, r);
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}
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if (xr != NULL) XDestroyRegion(xr);
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return;
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}
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/*
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* HTMLLayoutBox
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*/
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void
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HTMLLayoutBox(li, parent, box)
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HTMLInfo li;
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HTMLBox parent;
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HTMLBox box;
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{
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myassert(parent->layout != NULL, "Box cannot contain other boxes");
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(parent->layout)(li, box, parent);
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return;
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}
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/*
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* HTMLSetupBox
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*/
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void
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HTMLSetupBox(li, box)
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HTMLInfo li;
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HTMLBox box;
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{
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HTMLEnv env = box->env;
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if (env->anchor != NULL) HTMLAddAnchor(li, box, NULL, env->anchor);
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if (box->setup != NULL) (box->setup)(li, box);
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return;
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}
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/*
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* HTMLGetBoxWidth
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*/
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unsigned int
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HTMLGetBoxWidth(li, box)
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HTMLInfo li;
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HTMLBox box;
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{
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myassert(box->maxwidth != NULL, "Box cannot contain other boxes");
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return((box->maxwidth)(li, box));
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}
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