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+\documentclass{article}
+\usepackage{axiom}
+\begin{document}
+\title{\$SPAD/src/graph/view2D spadAction2d.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 _SPADACTION2D_C
+#include "axiom-c-macros.h"
+#include "useproto.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "header2.h"
+
+#include "all_2d.H1"
+#include "util.H1"
+
+
+/******************************
+ * int readViewman(info,size) *
+ ******************************/
+
+int
+#ifdef _NO_PROTO
+readViewman(info,size)
+ void *info;
+ int size;
+#else
+readViewman(void * info,int size)
+#endif
+{
+ int mold = 0;
+
+ sprintf(errorStr,"%s %d %s","read of ",size,
+ " bytes from viewport manager\n");
+ mold = check(read(0,info,size));
+ return(mold);
+
+}
+
+/********************
+ * int spadAction() *
+ ********************/
+extern int viewAloned;
+int
+#ifdef _NO_PROTO
+spadAction()
+#else
+spadAction(void)
+#endif
+{
+ int code,viewCommand;
+ float f1,f2;
+ int i1,i2,i3,viewGoAhead;
+ static int ack = 1;
+
+ if (viewAloned==yes) {
+ close(0);
+ return(-1);
+ }
+ readViewman(&viewCommand,intSize);
+
+ switch (viewCommand) {
+
+ case hideControl2D:
+ readViewman(&i1,intSize);
+ if (i1) { /* show control panel */
+ if (viewport->haveControl) XUnmapWindow(dsply,control->controlWindow);
+ putControlPanelSomewhere(someInt);
+ } else { /* turn off control panel */
+ if (viewport->haveControl) {
+ viewport->haveControl = no;
+ XUnmapWindow(dsply,control->controlWindow);
+ }
+ }
+ break;
+
+ case changeTitle:
+ readViewman(&i1,intSize);
+ readViewman(viewport->title,i1);
+ viewport->title[i1] = '\0';
+ writeTitle();
+ writeControlTitle();
+ XFlush(dsply);
+ spadDraw=no;
+ break;
+
+ case writeView:
+ readViewman(&i1,intSize);
+ readViewman(filename,i1);
+ filename[i1] = '\0';
+ sprintf(errorStr,"writing of viewport data");
+ i3 = 0;
+ readViewman(&i2,intSize);
+ while (i2) {
+ i3 = i3 | (1<<i2);
+ readViewman(&i2,intSize);
+ }
+ if (writeViewport(i3) < 0)
+ fprintf(stderr," Nothing was written\n");
+ break;
+
+ case closeAll2D:
+ code = check(write(Socket,&ack,intSize));
+ goodbye(-1);
+
+ case ps2D:
+ readViewman(&i1,intSize);
+ buttonAction(viewCommand);
+ break;
+
+ case axesOnOff2D:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ graphStateArray[i1].axesOn = i2;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break;
+
+ case axesColor2D:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ graphStateArray[i1].axesColor = i2;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break;
+
+ case unitsOnOff2D:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ graphStateArray[i1].unitsOn = i2;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break;
+
+ case unitsColor2D:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ graphStateArray[i1].unitsColor = i2;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break;
+
+ case connectOnOff:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ graphStateArray[i1].connectOn = i2;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break;
+
+ case pointsOnOff:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ graphStateArray[i1].pointsOn = i2;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break;
+
+ case spline2D:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ graphStateArray[i1].splineOn = i2;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break;
+
+ case showing2D:
+ readViewman(&i1,intSize);
+ i1--;
+ readViewman(&i2,intSize);
+ /* simulate a button press to turn display number on/off */
+ graphStateArray[i1].showing = !i2;
+ clickedOnGraph(i1,i1+graphStart);
+ break;
+
+ case scale2D:
+ readViewman(&i1,intSize);
+ i1--; /* passed index is [1..9] but internal representation is [0..8] */
+ readViewman(&f1,floatSize);
+ readViewman(&f2,floatSize);
+ graphStateArray[i1].scaleX = f1;
+ graphStateArray[i1].scaleY = f2;
+ if (graphStateArray[i1].scaleX > maxScale)
+ graphStateArray[i1].scaleX = maxScale;
+ else
+ if (graphStateArray[i1].scaleX < minScale)
+ graphStateArray[i1].scaleX = minScale;
+ if (graphStateArray[i1].scaleY > maxScale)
+ graphStateArray[i1].scaleY = maxScale;
+ else
+ if (graphStateArray[i1].scaleY < minScale)
+ graphStateArray[i1].scaleY = minScale;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break; /* scale2D */
+
+
+ case translate2D:
+ readViewman(&i1,intSize);
+ i1--; /* passed index is [1..9] but internal representation is [0..8] */
+ readViewman(&f1,floatSize);
+ readViewman(&f2,floatSize);
+ graphStateArray[i1].centerX = f1;
+ graphStateArray[i1].centerY = f2;
+ if (graphStateArray[i1].centerX > maxDelta)
+ graphStateArray[i1].centerX = maxDelta;
+ else if (graphStateArray[i1].centerX < -maxDelta)
+ graphStateArray[i1].centerX = maxDelta;
+ if (graphStateArray[i1].centerY > maxDelta)
+ graphStateArray[i1].centerY = maxDelta;
+ else if (graphStateArray[i1].centerY < -maxDelta)
+ graphStateArray[i1].centerY = maxDelta;
+ if (graphStateArray[i1].showing) spadDraw=yes;
+ break; /* translate2D */
+
+ case moveViewport:
+ readViewman(&i1,intSize);
+ readViewman(&i2,intSize);
+ XMoveWindow(dsply,viewport->titleWindow,i1,i2);
+ XSync(dsply,False);
+ break;
+
+ case resizeViewport:
+ readViewman(&i1,intSize);
+ readViewman(&i2,intSize);
+ XResizeWindow(dsply,viewport->titleWindow,i1,i2+titleHeight);
+ XResizeWindow(dsply,viewport->viewWindow,i1,i2);
+ spadDraw=yes;
+ break;
+
+ case putGraph:
+ readViewman(&i1,intSize); /* key of graph to get */
+ readViewman(&i2,intSize); /* slot to drop graph onto 0..8*/
+ readViewman(&viewGoAhead,intSize);
+ if (viewGoAhead < 0) {
+ sprintf(control->message,"%s%d","Couldn't put into graph ",i2+1);
+ writeControlMessage();
+ } else {
+ sprintf(control->message,"%s%d","Dropped onto graph ",i2+1);
+ writeControlMessage();
+ freeGraph(i2);
+ graphArray[i2].key = i1;
+ getGraphFromViewman(i2);
+ /* simulate a button press to turn display number on and select on */
+ /* need !yes since it will be inverted */
+ graphStateArray[i2].selected = no;
+ graphStateArray[i2].connectOn = yes;
+ graphStateArray[i2].showing = !(graphStateArray[i2].showing);
+ clickedOnGraph(i2,i2+graphStart);
+ clickedOnGraphSelect(i2,i2+graphSelectStart);
+ }
+ break;
+
+ case spadPressedAButton:
+ readViewman(&i1,intSize);
+ buttonAction(i1);
+ break;
+
+ default:
+ return(-1);
+ } /* switch */
+
+
+ ack++;
+ code = check(write(Socket,&ack,intSize));
+ return(0);
+
+}
+
+@
+\eject
+\begin{thebibliography}{99}
+\bibitem{1} nothing
+\end{thebibliography}
+\end{document}
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