300 lines
5.3 KiB
C
300 lines
5.3 KiB
C
/*
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* render.c
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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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#ifdef HAVE_STDLIB_H
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#include <stdlib.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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#include <X11/IntrinsicP.h>
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#include <X11/StringDefs.h>
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#include "port_after.h"
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#include "ChimeraP.h"
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struct ChimeraRenderP
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{
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MemPool mp; /* memory pool */
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ChimeraRenderHooks rh; /* renderer hooks */
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ChimeraRenderHooks orh; /* override renderer hooks */
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void *rc; /* renderer context */
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void *orc; /* override renderer context */
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ChimeraContext wc;
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ChimeraGUI wd;
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ChimeraSink wp;
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ChimeraRenderActionProc rap; /* kludge */
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void *rapc; /* kludge context */
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};
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/*
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* RenderDestroy
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*/
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void
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RenderDestroy(wn)
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ChimeraRender wn;
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{
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if (wn->rh.destroy != NULL) CMethod(wn->rh.destroy)(wn->rc);
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MPDestroy(wn->mp);
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return;
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}
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/*
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* RenderAdd
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*/
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void
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RenderAdd(wn)
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ChimeraRender wn;
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{
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if (wn->rh.add != NULL) CMethod(wn->rh.add)(wn->rc);
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return;
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}
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/*
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* RenderEnd
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*/
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void
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RenderEnd(wn)
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ChimeraRender wn;
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{
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if (wn->rh.end != NULL) CMethod(wn->rh.end)(wn->rc);
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return;
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}
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/*
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* RenderQuery
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*/
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char *
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RenderQuery(wn, key)
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ChimeraRender wn;
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char *key;
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{
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if (wn->rh.query != NULL)
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{
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return(CMethodBytePtr(wn->rh.query)(wn->rc, key));
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}
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return(NULL);
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}
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/*
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* RenderSearch
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*/
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int
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RenderSearch(wn, key, mode)
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ChimeraRender wn;
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char *key;
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int mode;
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{
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if (wn->rh.search != NULL)
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{
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return(CMethodInt(wn->rh.search)(wn->rc, key, mode));
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}
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return(-1);
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}
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/*
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* RenderCancel
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*/
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void
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RenderCancel(wn)
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ChimeraRender wn;
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{
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if (wn->rh.cancel != NULL)
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{
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CMethodVoid(wn->rh.cancel)(wn->rc);
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}
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return;
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}
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/*
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* RenderCreate
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*/
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ChimeraRender
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RenderCreate(wc, wd, wp, rh, orh, orc, state, rap, rapc)
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ChimeraContext wc;
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ChimeraGUI wd;
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ChimeraSink wp;
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ChimeraRenderHooks *rh, *orh;
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void *orc;
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void *state;
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ChimeraRenderActionProc rap;
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void *rapc;
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{
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ChimeraRender wn;
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MemPool mp;
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myassert(rh->init != NULL, "Callback is NULL.");
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myassert(rh->add != NULL, "Callback is NULL.");
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myassert(rh->end != NULL, "Callback is NULL.");
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myassert(rh->destroy != NULL, "Callback is NULL.");
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myassert(rh->expose != NULL, "Callback is NULL.");
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myassert(rh->cancel != NULL, "Callback is NULL.");
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mp = MPCreate();
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wn = (ChimeraRender)MPCGet(mp, sizeof(struct ChimeraRenderP));
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wn->mp = mp;
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wn->wc = wc;
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wn->wd = wd;
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wn->wp = wp;
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wn->orc = orc;
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wn->rap = rap;
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wn->rapc = rapc;
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memcpy(&(wn->rh), rh, sizeof(ChimeraRenderHooks));
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if (orh != NULL) memcpy(&(wn->orh), orh, sizeof(ChimeraRenderHooks));
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if ((wn->rc =
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CMethodVoidPtr(rh->init)(wn, rh->class_context, state)) == NULL)
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{
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MPDestroy(wn->mp);
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return(NULL);
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}
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GUIAddRender(wd, wn);
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return(wn);
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}
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void *
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RenderGetState(wn)
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ChimeraRender wn;
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{
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if (wn->rh.getstate != NULL)
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{
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return(CMethodVoidPtr(wn->rh.getstate)(wn->rc));
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}
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return(NULL);
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}
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void
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RenderAction(wn, wr, action)
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ChimeraRender wn;
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ChimeraRequest *wr;
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char *action;
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{
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if (wn->rap == NULL)
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{
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if (strcmp("download", action) == 0) DownloadOpen(wn->wc->cres, wr);
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else if (strcmp("external", action) == 0) ViewOpen(wn->wc->cres, wr);
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else fprintf (stderr, "Action cannot be taken. Bug.\n");
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}
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else
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{
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CMethod(wn->rap)(wn->rapc, wn, wr, action);
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}
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return;
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}
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ChimeraGUI
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RenderToGUI(wn)
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ChimeraRender wn;
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{
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return(wn->wd);
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}
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ChimeraSink
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RenderToSink(wn)
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ChimeraRender wn;
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{
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return(wn->wp);
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}
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ChimeraContext
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RenderToContext(wn)
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ChimeraRender wn;
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{
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return(wn->wc);
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}
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void
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RenderSendMessage(wn, message)
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ChimeraRender wn;
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char *message;
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{
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HeadPrintMessage(wn->wc, message);
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return;
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}
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void
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RenderExpose(wn, x, y, width, height)
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ChimeraRender wn;
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int x, y;
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unsigned int width, height;
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{
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if (wn->rh.expose != NULL)
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{
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CMethodBool(wn->rh.expose)(wn->rc, x, y, width, height);
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}
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return;
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}
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void
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RenderSelect(wn, x, y, action)
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ChimeraRender wn;
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int x, y;
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char *action;
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{
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if (wn->orc != NULL && wn->orh.select != NULL)
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{
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CMethodBool(wn->orh.select)(wn->orc, x, y, action);
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}
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else if (wn->rh.select != NULL)
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{
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CMethodBool(wn->rh.select)(wn->rc, x, y, action);
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}
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return;
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}
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void
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RenderMotion(wn, x, y)
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ChimeraRender wn;
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int x, y;
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{
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if (wn->orc != NULL && wn->orh.motion != NULL)
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{
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CMethodBool(wn->orh.motion)(wn->orc, x, y);
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}
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if (wn->rh.motion != NULL)
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{
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CMethodBool(wn->rh.motion)(wn->rc, x, y);
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}
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return;
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}
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/*
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* RenderToResources
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*/
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ChimeraResources
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RenderToResources(wn)
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ChimeraRender wn;
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{
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return(wn->wc->cres);
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}
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