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authordos-reis <gdr@axiomatics.org>2007-08-14 05:14:52 +0000
committerdos-reis <gdr@axiomatics.org>2007-08-14 05:14:52 +0000
commitab8cc85adde879fb963c94d15675783f2cf4b183 (patch)
treec202482327f474583b750b2c45dedfc4e4312b1d /src/graph/viewman/viewman.c.pamphlet
downloadopen-axiom-ab8cc85adde879fb963c94d15675783f2cf4b183.tar.gz
Initial population.
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+\documentclass{article}
+\usepackage{axiom}
+\begin{document}
+\title{\$SPAD/src/graph/viewman viewman.c}
+\author{The Axiom Team}
+\maketitle
+\begin{abstract}
+\end{abstract}
+\eject
+\tableofcontents
+\eject
+\section{License}
+<<license>>=
+/*
+Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+
+ - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+ names of its contributors may be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+@
+<<*>>=
+<<license>>
+
+#define _VIEWMAN_C
+#include "axiom-c-macros.h"
+#include "useproto.h"
+
+#include <unistd.h>
+#include <sys/time.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#ifdef SGIplatform
+#include <bstring.h>
+#endif
+
+#include "viewman.h"
+#include "mode.h"
+#include "actions.h"
+#include "viewCommand.h"
+#include "bsdsignal.h"
+
+
+#include "bsdsignal.H1"
+#include "util.H1"
+#include "sockio-c.H1"
+#include "fun2D.H1"
+#include "fun3D.H1"
+#include "makeGraph.H1"
+#include "readView.H1"
+#include "cleanup.H1"
+#include "sselect.H1"
+
+/************* global variables **************/
+
+Display *dsply;
+Window root;
+XEvent viewmanEvent;
+viewManager *viewports,
+ *slot,
+ *stepSlot;
+Sock *spadSock;
+int viewType,
+ viewCommand,
+ acknow,
+ graphKey = 1,
+ defDsply,
+ currentGraph,
+ picked = no,
+ viewOkay = 0,
+ viewError = -1,
+ checkClosedChild = no,
+ foundBrokenPipe = no;
+fd_set filedes;
+graphStruct *graphList;
+graphStateStruct currentGraphState;
+char *s1,
+ propertyBuffer[256];/* XProperty buffer */
+
+
+int
+#ifdef _NO_PROTO
+main ()
+#else
+main (void)
+#endif
+{
+
+ graphStruct *aGraph;
+ int keepLooking,code;
+
+ bsdSignal(SIGPIPE,brokenPipe,DontRestartSystemCalls);
+#if defined(BSDplatform) || defined (MACOSXplatform)
+ bsdSignal(SIGCHLD,endChild,RestartSystemCalls);
+#else
+ bsdSignal(SIGCLD,endChild,RestartSystemCalls);
+#endif
+ bsdSignal(SIGTERM,goodbye,DontRestartSystemCalls);
+
+ /* Connect up to AXIOM server */
+ spadSock = connect_to_local_server(SpadServer,ViewportServer,Forever);
+ if (spadSock == NULL) {
+ fprintf(stderr,"The viewport manager couldn't connect to AXIOM\n");
+ exit(-1);
+ }
+#ifdef DEBUG
+ else
+ fprintf(stderr,"viewman: Connected to AXIOM\n");
+#endif
+
+ /******** initialize ********/
+ viewports = 0;
+ graphList = 0;
+
+ /******** getting stuff from spad and viewports ********
+ ********* the viewports have priority over ****
+ *** AXIOM. ***/
+ while (1) {
+ FD_ZERO(&filedes); /* zero out file descriptor */
+ FD_SET(spadSock->socket,&filedes);
+ slot = viewports;
+ while (slot) {
+ FD_SET(slot->viewIn,&filedes);
+ slot = slot->nextViewport;
+ }
+
+#ifdef DEBUG
+ fprintf(stderr,"Selection for filedes of %x \n",filedes);
+#endif
+ code = check(superSelect(FD_SETSIZE,(void *) &filedes,0,0,0));
+ for (;code<=0;)
+ code = check(superSelect(FD_SETSIZE,(void *)&filedes,0,0,0));
+
+ slot = viewports;
+ keepLooking = 1;
+ while (keepLooking && slot) {
+ if (FD_ISSET(slot->viewIn,&filedes)) {
+ keepLooking = 0;
+#ifdef DEBUG
+ fprintf(stderr,"Reading child viewport...\n");
+#endif
+ readViewport(slot,&viewCommand,intSize);
+
+ switch (viewCommand) {
+
+ case pick2D:
+#ifdef DEBUG
+ fprintf(stderr,"viewman: Doing 2D pick\n");
+#endif
+ picked = yes;
+
+ readViewport(slot,&currentGraph,intSize); /* get the graph to pick */
+ readViewport(slot,&currentGraphState,sizeof(graphStateStruct));
+ break;
+
+ case drop2D:
+#ifdef DEBUG
+ fprintf(stderr,"viewman: Doing 2D drop\n");
+#endif
+ if (picked) {
+ write(slot->viewOut,&viewOkay,intSize);
+ write(slot->viewOut,&currentGraph,intSize);
+ sendGraphToView2D(0,currentGraph,slot,&currentGraphState);
+ } else {
+ write(slot->viewOut,&viewError,intSize);
+ fprintf(stderr,"The viewport manager cannot drop a graph because nothing has been picked yet.\n");
+ }
+ break;
+
+ case viewportClosing:
+#ifdef DEBUG
+ fprintf(stderr,"viewman: closing viewport\n");
+#endif
+ closeChildViewport(slot);
+ break;
+
+ }; /* switch */
+
+ }; /* if reading slot->viewIn */
+ stepSlot = slot;
+ slot = slot->nextViewport;
+ }; /* while */
+
+ if (keepLooking) { /* if 1 => slots not read, read from spad */
+#ifdef DEBUG
+ fprintf(stderr,"viewman: still looking\n");
+#endif
+ viewType = get_int(spadSock);
+ if (viewType == -1) goodbye(-1);
+ viewCommand = get_int(spadSock);
+
+ switch (viewType) {
+
+ case view3DType:
+#ifdef DEBUG
+ fprintf(stderr,"viewman: making 3D viewport\n");
+#endif
+ if (viewCommand == makeViewport)
+ forkView3D(view3DType);
+ else
+ funView3D(viewCommand);
+
+ break;
+
+ case viewTubeType:
+#ifdef DEBUG
+ fprintf(stderr,"viewman: viewing a tube\n");
+#endif
+ if (viewCommand == makeViewport)
+ forkView3D(viewTubeType);
+ else
+ funView3D(viewCommand);
+
+ break;
+
+ case viewGraphType:
+#ifdef DEBUG
+ fprintf(stderr,"viewman: making a graph\n");
+#endif
+ if (viewCommand == makeGraph) {
+ aGraph = makeGraphFromSpadData();
+ aGraph->nextGraph = graphList;
+ graphList = aGraph;
+ }
+ break;
+
+ case view2DType:
+#ifdef DEBUG
+ fprintf(stderr,"viewman: forking 2D\n");
+#endif
+ if (viewCommand == makeViewport) {
+ forkView2D();
+ } else {
+ funView2D(viewCommand);
+ }
+ break;
+
+ } /* switch on viewType */
+ } /* if (keepLooking) */
+ } /* while (1) */
+}
+
+
+
+@
+\eject
+\begin{thebibliography}{99}
+\bibitem{1} nothing
+\end{thebibliography}
+\end{document}