Annotation of loncom/homework/functionplotresponse.pm, revision 1.6
1.1 www 1: # LearningOnline Network with CAPA
2: # option list style responses
3: #
1.6 ! www 4: # $Id: functionplotresponse.pm,v 1.5 2010/10/04 20:47:29 www Exp $
1.1 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::functionplotresponse;
30: use strict;
31: use Apache::response();
32: use Apache::lonlocal;
33: use Apache::lonnet;
34:
35: BEGIN {
1.6 ! www 36: &Apache::lonxml::register('Apache::functionplotresponse',('functionplotresponse','backgroundplot','spline'));
1.1 www 37: }
38:
1.5 www 39: #
40: # There can be a number of applets on a page, each called ggbApplet_$id,
41: # where $id is the "_"-concatenated part and responseid
42: #
43:
1.1 www 44: sub geogebra_startcode {
1.3 www 45: my ($id)=@_;
1.1 www 46: return (<<ENDSTARTCODE);
1.3 www 47: <applet name="ggbApplet_$id" code="geogebra.GeoGebraApplet" archive="geogebra.jar"
1.1 www 48: codebase="/adm/geogebra/" width="714" height="447" MAYSCRIPT>
49: <param name="java_arguments" value="-Xmx512m -Djnlp.packEnabled=true"/>
50: ENDSTARTCODE
51: }
52:
53: sub geogebra_endcode {
1.2 www 54: return &Apache::lonhtmlcommon::java_not_enabled()."</applet>\n";
55: }
56:
1.5 www 57: #
58: # This is the internal GeoGebra bytecode which defines the spline functions
59: #
1.2 www 60: sub geogebra_spline_program {
61: return (<<ENDSPLINEPROGRAM);
62: <param name="ggbBase64" value="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"/>
63: ENDSPLINEPROGRAM
64: }
65:
1.5 www 66: #
67: # The standard set of parameters inside <applet>
68: #
1.2 www 69: sub geogebra_default_parameters {
1.3 www 70: my ($id)=@_;
1.2 www 71: return(<<ENDDEFAULTPARAMETERS);
72: <param name="image" value="/adm/lonIcons/lonanim.gif" />
73: <param name="boxborder" value="false" />
74: <param name="centerimage" value="true" />
75: <param name="java_arguments" value="-Xmx512m" />
76: <param name="cache_archive" value="geogebra.jar, geogebra_main.jar, geogebra_gui.jar, geogebra_cas.jar, geogebra_export.jar, geogebra_properties.jar" />
77: <param name="cache_version" value="3.2.44.0, 3.2.44.0, 3.2.44.0, 3.2.44.0, 3.2.44.0, 3.2.44.0" />
78: <param name="framePossible" value="false" />
79:
80: <param name="showResetIcon" value="false" />
81: <param name="showAnimationButton" value="false" />
82: <param name="enableRightClick" value="false" />
83: <param name="errorDialogsActive" value="true" />
84: <param name="enableLabelDrags" value="false" />
85: <param name="showMenuBar" value="false" />
86: <param name="showToolBar" value="false" />
87: <param name="showToolBarHelp" value="false" />
88: <param name="showAlgebraInput" value="false" />
89: <param name="enableShiftDragZoom" value="false" />
90: <param name="allowRescaling" value="false" />
91: <param name="enableLabelDrags" value="false" />
1.3 www 92: <param name="ggbOnInitParam" value="applet_$id" />
1.2 www 93: ENDDEFAULTPARAMETERS
1.1 www 94: }
95:
1.5 www 96: #
97: # This subroutine is called by LON-CAPA at </problem>
98: # Each applet on the page will call function ggbOnInit when it is done loading
99: # This function in turn will call the respective function registered by start_init_script
100: # Which one of the registered functions is called is determined by ggbOnInitParam, which GeoGebra passes to ggbOnInit
101: #
102:
1.3 www 103: sub init_script {
104: if ($Apache::functionplotresponse::callscripts) {
105: return (<<ENDGGBINIT);
106: <script type="text/javascript">
107: // <![CDATA[
108: function ggbOnInit(param) {
109: $Apache::functionplotresponse::callscripts
110: }
111: // ]]>
112: </script>
113: ENDGGBINIT
114: }
115: }
116:
1.5 www 117: #
118: # Each Geogebra applet is supposed to call this when parameters change
119: #
120: sub update_script {
121: my ($id)=@_;
122: return (<<ENDUPDATESCRIPT);
123: <script type="text/javascript">
124: // <![CDATA[
125: function updatePointCoordinates_$id(coordinateName) {
126: var x = document.ggbApplet_$id.getXcoord(coordinateName);
127: var y = document.ggbApplet_$id.getYcoord(coordinateName);
128: coordinateMap_$id\[coordinateName + ".x"] = x;
129: coordinateMap_$id\[coordinateName + ".y"] = y;
130: }
131: // ]]>
132: </script>
133: ENDUPDATESCRIPT
134: }
135:
136: #
137: # Register the above update-handler for a variable
138: #
139:
140: sub update_register {
141: my ($id,$variable)=@_;
1.6 ! www 142: return "document.ggbApplet_$id.registerObjectUpdateListener('$variable','updatePointCoordinates_$id');\n";
! 143: }
! 144:
! 145: #
! 146: # Set a coordinate variable
! 147: #
! 148: sub set_coordinate {
! 149: my ($id,$variable,$x,$y)=@_;
! 150: return (<<ENDSETVARIABLE);
! 151: coordinateMap_$id\['$variable.x'] = $x;
! 152: coordinateMap_$id\['$variable.y'] = $y;
! 153: document.ggbApplet_$id.evalCommand("$variable=("+coordinateMap_$id\["$variable.x"]+","+coordinateMap_$id\["$variable.y"]+")");
! 154: ENDSETVARIABLE
! 155: }
! 156:
! 157: #
! 158: # Initialize a new coordinate variable at set a listener on it
! 159: #
! 160: sub new_coordinate {
! 161: my ($id,$variable,$x,$y)=@_;
! 162: return &set_coordinate($id,$variable,$x,$y).&update_register($id,$variable);
1.5 www 163: }
164:
165: #
166: # This registers the init-function call for ggbOnInit, which LON-CAPA will place at </problem>
167: # It then starts the right headers
168: #
1.3 www 169: sub start_init_script {
170: my ($id)=@_;
1.5 www 171: # Add a line to ggbOnInit-function which calls the right function based on parameter passed from GeoGebra
1.3 www 172: $Apache::functionplotresponse::callscripts.="if (param=='applet_$id') { ggbInit_$id(); }\n";
1.5 www 173: # ... and open this function
1.3 www 174: return (<<ENDSTARTINIT);
175: <script type="text/javascript">
176: // <![CDATA[
1.5 www 177: // variable that will eventually be passed back to the server
178: var coordinateMap_$id = [];
179: // Init-function for applet
1.3 www 180: function ggbInit_$id() {
181: ENDSTARTINIT
182: }
183:
1.5 www 184: #
185: # This sets the axes inside ggbInit_$id
186: #
187:
1.4 www 188: sub axes_script {
189: my ($id,$xmin,$xmax,$ymin,$ymax,$xvisible,$yvisible,$gvisible)=@_;
190: return (<<ENDAXESSCRIPT);
191: // changes (xmin, xmax, ymin, ymax)
192: document.ggbApplet_$id.setCoordSystem($xmin,$xmax,$ymin,$ymax);
193:
194: // makes the (x,y) axis (in)visible
195: document.ggbApplet_$id.setAxesVisible($xvisible,$yvisible);
196: // makes the grid (in)visible
197: document.ggbApplet_$id.setGridVisible($gvisible);
198: ENDAXESSCRIPT
199: }
200:
201: sub plot_script {
1.6 ! www 202: my ($id,$function,$fixed)=@_;
! 203: if ($fixed) {
! 204: # Use stupid trick to nail this to a location
! 205: return (<<ENDPLOTSCRIPT);
! 206: document.ggbApplet_$id.evalCommand("a=1");
! 207: document.ggbApplet_$id.setVisible("a",false);
! 208: // This MUST be a DEPENDENT OBJECT in order to be locked down:
! 209: document.ggbApplet_$id.evalCommand("y=a*($function)");
1.4 www 210: ENDPLOTSCRIPT
1.6 ! www 211: } else {
! 212: return "document.ggbApplet_$id.evalCommand('y=$function')";
! 213: }
1.4 www 214: }
215:
1.5 www 216: #
1.6 ! www 217: # Subroutine that generates spline $label based on stored information
! 218: #
! 219:
! 220: sub generate_spline {
! 221: my ($id,$label)=@_;
! 222: my $result='';
! 223: return $result;
! 224: }
! 225: #
! 226: # <backgroundplot function="..." fixed="yes/no" />
1.5 www 227: #
1.4 www 228: sub start_backgroundplot {
229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
230: my $result='';
231: my $internalid = $Apache::inputtags::part.'_'.$Apache::inputtags::response[-1];
232: my $function=&Apache::lonxml::get_param('function',$parstack,$safeeval);
1.6 ! www 233: my $fixed=(&Apache::lonxml::get_param('fixed',$parstack,$safeeval)=~/on|true|yes|1/i?1:0);
! 234:
1.4 www 235: unless ($function) { $function="0"; }
236: if ($target eq 'web') {
1.6 ! www 237: $result.=&plot_script($internalid,$function,$fixed);
1.4 www 238: }
239: return $result;
240: }
241:
242: sub end_backgroundplot {
1.6 ! www 243: return '';
! 244: }
! 245:
! 246: #
! 247: # <spline label="..." order="1,2,3,4" initx="..." inity="..." scalex="..." scaley="..." />
! 248: #
! 249: # Unfortunately, GeoGebra seems to want all splines after everything else, so we need to store them
! 250: #
! 251: sub start_spline {
! 252: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
! 253: my $label=&Apache::lonxml::get_param('label',$parstack,$safeeval);
! 254: $Apache::functionplotresponse::counter++;
! 255: unless ($label) { $label='S'.$Apache::functionplotresponse::counter; }
! 256:
! 257: my $order=&Apache::lonxml::get_param('order',$parstack,$safeeval);
! 258: if (($order<2) || ($order>4)) { $order=2; }
! 259: $Apache::functionplotresponse::splineorder{$label}=$order;
! 260:
! 261: my $x=&Apache::lonxml::get_param('initx',$parstack,$safeeval);
! 262: unless ($x) { $x=0; }
! 263: $Apache::functionplotresponse::splineinitx{$label}=$x;
! 264:
! 265: my $y=&Apache::lonxml::get_param('inity',$parstack,$safeeval);
! 266: unless ($y) { $y=0; }
! 267: $Apache::functionplotresponse::splineinity{$label}=$y;
! 268:
! 269: my $sx=&Apache::lonxml::get_param('scalex',$parstack,$safeeval);
! 270: unless ($sx) { $sx=$order; }
! 271: $Apache::functionplotresponse::splinescalex{$label}=$sx;
! 272:
! 273: my $sy=&Apache::lonxml::get_param('scaley',$parstack,$safeeval);
! 274: unless ($sy) { $sy=2; }
! 275: $Apache::functionplotresponse::splinescaley{$label}=$sy;
! 276: }
! 277:
! 278: sub end_spline {
! 279: return '';
1.4 www 280: }
281:
1.3 www 282: sub end_init_script {
283: return (<<ENDENDINIT);
284: }
285: // ]]>
286: </script>
287: ENDENDINIT
288: }
289:
1.1 www 290: sub start_functionplotresponse {
291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
292: my $result='';
1.6 ! www 293: # To remember the splines - somehow, they need to come last
! 294: undef %Apache::functionplotresponse::splineorder;
! 295: undef %Apache::functionplotresponse::splineinitx;
! 296: undef %Apache::functionplotresponse::splineinity;
! 297: undef %Apache::functionplotresponse::splinescalex;
! 298: undef %Apache::functionplotresponse::splinescaley;
! 299: $Apache::functionplotresponse::counter=0;
! 300: # Internal ID to mark the applet and its coordinates
1.3 www 301: my $internalid = $Apache::inputtags::part.'_'.&Apache::response::start_response($parstack,$safeeval);
1.6 ! www 302: # Parameters of <functionplotresponse>
1.3 www 303: my $xmin=&Apache::lonxml::get_param('xmin',$parstack,$safeeval);
1.4 www 304: $xmin=($xmin?$xmin:-10);
1.3 www 305: my $xmax=&Apache::lonxml::get_param('xmax',$parstack,$safeeval);
1.4 www 306: $xmax=($xmax?$xmax:10);
1.3 www 307: my $ymin=&Apache::lonxml::get_param('ymin',$parstack,$safeeval);
1.4 www 308: $ymin=($ymin?$ymin:-10);
1.3 www 309: my $ymax=&Apache::lonxml::get_param('ymax',$parstack,$safeeval);
1.4 www 310: $ymax=($ymax?$ymax:10);
1.6 ! www 311: my $xaxisvisible=(&Apache::lonxml::get_param('xaxisvisible',$parstack,$safeeval)=~/on|true|yes|1/i?'true':'false');
! 312: my $yaxisvisible=(&Apache::lonxml::get_param('yaxisvisible',$parstack,$safeeval)=~/on|true|yes|1/i?'true':'false');
! 313: my $gridvisible=(&Apache::lonxml::get_param('gridvisible',$parstack,$safeeval)=~/on|true|yes|1/i?'true':'false');
1.3 www 314:
1.1 www 315: if ($target eq 'web') {
1.5 www 316: # paste in the update routine to receive stuff back from the applet
317: $result.=&update_script($internalid);
318: # start the initscript for this applet
1.3 www 319: $result.=&start_init_script($internalid);
1.5 www 320: # put the axis commands inside
1.4 www 321: $result.=&axes_script($internalid,$xmin,$xmax,$ymin,$ymax,$xaxisvisible,$yaxisvisible,$gridvisible);
1.5 www 322: # init script is left open
1.1 www 323: }
324: return $result;
325: }
326:
327: sub end_functionplotresponse {
328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
329: &Apache::response::end_response;
1.3 www 330:
1.1 www 331: my $result;
1.3 www 332: my $internalid = $Apache::inputtags::part.'_'.$Apache::inputtags::response[-1];
333:
1.1 www 334: # if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
335: if ($target eq 'web') {
1.6 ! www 336: # Now is the time to render all of the stored splines
! 337: foreach my $label (keys(%Apache::functionplotresponse::splineorder)) {
! 338: $result.=&generate_spline($internalid,$label);
! 339: }
1.5 www 340: # close the init script
1.3 www 341: $result.=&end_init_script();
1.5 www 342: # actually start the <applet>-tag
1.3 www 343: $result.=&geogebra_startcode($internalid);
1.5 www 344: # load the spline bytecode
1.3 www 345: $result.=&geogebra_spline_program();
1.5 www 346: # set default parameters
1.3 www 347: $result.=&geogebra_default_parameters($internalid);
1.5 www 348: # close the <applet>-tag
1.1 www 349: $result.=&geogebra_endcode();
350: }
351: return $result;
352: }
353:
354: 1;
355:
356: __END__
357:
358: =head1 NAME
359:
360: Apache::functionplotresponse.pm;
361:
362: =head1 SYNOPSIS
363:
364: Handles tags associated with accepting function plots.
365:
366: This is part of the LearningOnline Network with CAPA project
367: described at http://www.lon-capa.org.
368:
369: =head1 HANDLER SUBROUTINE
370:
371: start_functionplotresponse()
372:
373: =head1 OTHER SUBROUTINES
374:
375: =over
376:
377: =item end_functionplotresponse()
378:
379: =back
380:
381: =cut
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