Annotation of loncom/homework/imageresponse.pm, revision 1.3
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # iimage click response style
3:
1.3 ! albertel 4: #FIXME assumes multiple possbile submissions but only one is possible currently
! 5:
1.1 albertel 6: package Apache::imageresponse;
7: use strict;
8:
9: sub BEGIN {
10: &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
11: }
12:
13: sub start_imageresponse {
14: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
15: #when in a radiobutton response use these
16: &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle'));
17: my $id = &Apache::response::start_response($parstack,$safeeval);
18: return '';
19: }
20:
21: sub end_imageresponse {
22: &Apache::response::end_response;
23: return '';
24: }
25:
26: %Apache::response::foilgroup={};
27: sub start_foilgroup {
28: %Apache::response::foilgroup={};
29: return '';
30: }
31:
32: sub setrandomnumber {
33: my $rndseed=&Apache::lonnet::rndseed();
34: $rndseed=unpack("%32i",$rndseed);
35: $rndseed=$rndseed
36: +&Apache::lonnet::numval($Apache::inputtags::part)
37: +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
38: srand($rndseed);
39: return '';
40: }
41:
1.2 albertel 42: sub getfoilcounts {
43: my ($parstack,$safeeval)=@_;
44: my $rrargs ='';
45: if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
46: my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
47: my $count = $#{ $Apache::response::foilgroup{'names'} };
48: return ($count,$max);
49: }
50:
51: sub whichfoils {
52: my ($max)=@_;
53: my @names = @{ $Apache::response::foilgroup{'names'} };
54: my @whichopt =();
55: while ((($#whichopt+1) < $max) && ($#names > -1)) {
56: my $aopt=int rand $#names;
57: &Apache::lonxml::debug("From $#names elms, picking $aopt");
58: $aopt=splice(@names,$aopt,1);
59: &Apache::lonxml::debug("Picked $aopt");
60: push (@whichopt,$aopt);
61: }
62: return @whichopt;
63: }
64:
65: sub displayfoils {
66: my (@whichopt) = @_;
67: my $result ='';
68: my $name;
69: my $temp=1;
70: foreach $name (@whichopt) {
71: $result.=$Apache::response::foilgroup{"$name.text"}."<br />\n";
72: my $image=$Apache::response::foilgroup{"$name.image"};
1.3 ! albertel 73: if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
! 74: $result.="<img src=\"$image\"/> <br />\n";
! 75: } else {
! 76: $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
! 77: }
1.2 albertel 78: $temp++;
79: }
80: return $result;
81: }
82:
1.3 ! albertel 83: sub gradefoils {
! 84: my (@whichopt) = @_;
! 85: my $result='';
! 86: my $x;
! 87: my $y;
! 88: my $result;
! 89: my $id=$Apache::inputtags::response['-1'];
! 90: my $temp=1;
! 91: foreach my $name (@whichopt) {
! 92: $x=$ENV{"form.HWVAL_$id:$temp.x"};
! 93: $y=$ENV{"form.HWVAL_$id:$temp.y"};
! 94: &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
! 95: my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
! 96: my $grade="INCORRECT";
! 97: foreach my $area (@areas) {
! 98: &Apache::lonxml::debug("Area is $area for $name");
! 99: $area =~ m/([a-z]*):/;
! 100: &Apache::lonxml::debug("Area of type $1");
! 101: if ($1 eq 'rectangle') {
! 102: $grade=&grade_rectangle($area,$x,$y);
! 103: } else {
! 104: &Apache::lonxml::error("Unknown area style $area");
! 105: }
! 106: &Apache::lonxml::debug("Area said $grade");
! 107: if ($grade eq 'APPROX_ANS') { last; }
! 108: }
! 109: &Apache::lonxml::debug("Foil was $grade");
! 110: if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
! 111: if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
! 112: &Apache::lonxml::debug("Question is $result");
! 113: $temp++;
! 114: }
! 115: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
! 116: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
! 117: return '';
! 118: }
! 119:
1.1 albertel 120: sub end_foilgroup {
121: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.2 albertel 122: my $result='';
1.3 ! albertel 123: my @whichopt;
1.2 albertel 124: if ($target eq 'web' || $target eq 'grade') {
125: &setrandomnumber();
126: my ($count,$max) = &getfoilcounts($parstack,$safeeval);
127: if ($count>$max) { $count=$max }
128: &Apache::lonxml::debug("Count is $count from $max");
1.3 ! albertel 129: @whichopt = &whichfoils($max);
1.2 albertel 130: }
131: if ($target eq 'web') {
132: $result=&displayfoils(@whichopt);
133: }
134: if ($target eq 'grade') {
1.3 ! albertel 135: if ( defined $ENV{'form.submitted'}) {
! 136: &gradefoils(@whichopt);
! 137: }
1.2 albertel 138: }
139: return $result;
1.1 albertel 140: }
141:
142: sub start_conceptgroup {
143: }
144:
145: sub end_conceptgroup {
146: }
147:
148: $Apache::imageresponse::curname='';
149: sub start_foil {
150: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
151: if ($target eq 'web' || $target eq 'grade') {
152: my $args ='';
153: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
154: my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
1.3 ! albertel 155: if ($name eq '') { $name=$Apache::lonxml::curdepth; }
! 156: push(@{ $Apache::response::foilgroup{'names'} }, $name);
1.1 albertel 157: $Apache::imageresponse::curname=$name;
158: }
159: return '';
160: }
161:
162: sub end_foil {
163: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
164: return '';
165: }
166:
167: sub start_text {
168: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 ! albertel 169: if ($target eq 'web') { &Apache::lonxml::startredirection; }
1.1 albertel 170: return '';
171: }
172:
173: sub end_text {
174: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
175: if ($target eq 'web') {
176: my $name = $Apache::imageresponse::curname;
1.3 ! albertel 177: $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
1.1 albertel 178: }
179: return '';
180: }
181:
182: sub start_image {
183: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 ! albertel 184: if ($target eq 'web') { &Apache::lonxml::startredirection; }
1.2 albertel 185: return '';
1.1 albertel 186: }
187:
188: sub end_image {
189: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.2 albertel 190: if ($target eq 'web') {
191: my $name = $Apache::imageresponse::curname;
1.3 ! albertel 192: my $image = &Apache::lonxml::endredirection;
! 193: &Apache::lonxml::debug("out is $image");
! 194: $Apache::response::foilgroup{"$name.image"} = $image;
1.2 albertel 195: }
196: return '';
1.1 albertel 197: }
198:
199: sub start_rectangle {
200: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 ! albertel 201: if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; }
1.2 albertel 202: return '';
1.1 albertel 203: }
204:
1.3 ! albertel 205: sub grade_rectangle {
! 206: my ($spec,$x,$y) = @_;
! 207: &Apache::lonxml::debug("Spec is $spec");
! 208: $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
! 209: my $x1=$1;
! 210: my $y1=$2;
! 211: my $x2=$3;
! 212: my $y2=$4;
! 213: &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
! 214: if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
! 215: if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
! 216: if ($x => $x1) { if ($x <= $x2) { if ($y => $y1) { if ($y <= $y2) { return 'APPROX_ANS'; } } } }
! 217: return 'INCORRECT';
! 218: }
! 219:
1.1 albertel 220: sub end_rectangle {
221: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 ! albertel 222: if ($target eq 'web' || $target eq 'grade') {
1.2 albertel 223: my $name = $Apache::imageresponse::curname;
1.3 ! albertel 224: my $area = &Apache::lonxml::endredirection;
! 225: &Apache::lonxml::debug("out is $area for $name");
! 226: push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
1.2 albertel 227: }
1.3 ! albertel 228: return '';
1.1 albertel 229: }
230: 1;
231: __END__
232:
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