Annotation of loncom/homework/imageresponse.pm, revision 1.6
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'));
1.6 ! albertel 17: push (@Apache::lonxml::namespace,'imageresponse');
1.1 albertel 18: my $id = &Apache::response::start_response($parstack,$safeeval);
19: return '';
20: }
21:
22: sub end_imageresponse {
23: &Apache::response::end_response;
1.6 ! albertel 24: pop @Apache::lonxml::namespace;
1.1 albertel 25: return '';
26: }
27:
28: %Apache::response::foilgroup={};
29: sub start_foilgroup {
30: %Apache::response::foilgroup={};
1.4 albertel 31: $Apache::optionresponse::conceptgroup=0;
1.5 albertel 32: &Apache::response::setrandomnumber();
1.1 albertel 33: return '';
34: }
35:
1.2 albertel 36: sub getfoilcounts {
37: my ($parstack,$safeeval)=@_;
38: my $rrargs ='';
39: if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
40: my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
41: my $count = $#{ $Apache::response::foilgroup{'names'} };
42: return ($count,$max);
43: }
44:
45: sub whichfoils {
46: my ($max)=@_;
47: my @names = @{ $Apache::response::foilgroup{'names'} };
48: my @whichopt =();
1.5 albertel 49: while ((($#whichopt) < $max) && ($#names > -1)) {
1.2 albertel 50: my $aopt=int rand $#names;
51: &Apache::lonxml::debug("From $#names elms, picking $aopt");
52: $aopt=splice(@names,$aopt,1);
53: &Apache::lonxml::debug("Picked $aopt");
54: push (@whichopt,$aopt);
55: }
56: return @whichopt;
57: }
58:
59: sub displayfoils {
60: my (@whichopt) = @_;
61: my $result ='';
62: my $name;
63: my $temp=1;
64: foreach $name (@whichopt) {
65: $result.=$Apache::response::foilgroup{"$name.text"}."<br />\n";
66: my $image=$Apache::response::foilgroup{"$name.image"};
1.3 albertel 67: if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
68: $result.="<img src=\"$image\"/> <br />\n";
69: } else {
70: $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
71: }
1.2 albertel 72: $temp++;
73: }
74: return $result;
75: }
76:
1.3 albertel 77: sub gradefoils {
78: my (@whichopt) = @_;
79: my $result='';
80: my $x;
81: my $y;
82: my $result;
83: my $id=$Apache::inputtags::response['-1'];
84: my $temp=1;
85: foreach my $name (@whichopt) {
86: $x=$ENV{"form.HWVAL_$id:$temp.x"};
87: $y=$ENV{"form.HWVAL_$id:$temp.y"};
88: &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
89: my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
90: my $grade="INCORRECT";
91: foreach my $area (@areas) {
92: &Apache::lonxml::debug("Area is $area for $name");
93: $area =~ m/([a-z]*):/;
94: &Apache::lonxml::debug("Area of type $1");
95: if ($1 eq 'rectangle') {
96: $grade=&grade_rectangle($area,$x,$y);
97: } else {
98: &Apache::lonxml::error("Unknown area style $area");
99: }
100: &Apache::lonxml::debug("Area said $grade");
101: if ($grade eq 'APPROX_ANS') { last; }
102: }
103: &Apache::lonxml::debug("Foil was $grade");
104: if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
105: if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
106: &Apache::lonxml::debug("Question is $result");
107: $temp++;
108: }
109: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
110: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
111: return '';
112: }
113:
1.1 albertel 114: sub end_foilgroup {
115: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.2 albertel 116: my $result='';
1.3 albertel 117: my @whichopt;
1.2 albertel 118: if ($target eq 'web' || $target eq 'grade') {
119: my ($count,$max) = &getfoilcounts($parstack,$safeeval);
120: if ($count>$max) { $count=$max }
121: &Apache::lonxml::debug("Count is $count from $max");
1.3 albertel 122: @whichopt = &whichfoils($max);
1.2 albertel 123: }
124: if ($target eq 'web') {
125: $result=&displayfoils(@whichopt);
126: }
127: if ($target eq 'grade') {
1.3 albertel 128: if ( defined $ENV{'form.submitted'}) {
129: &gradefoils(@whichopt);
130: }
1.2 albertel 131: }
132: return $result;
1.1 albertel 133: }
134:
135: sub start_conceptgroup {
1.4 albertel 136: $Apache::optionresponse::conceptgroup=1;
137: %Apache::response::conceptgroup={};
138: return '';
1.1 albertel 139: }
140:
141: sub end_conceptgroup {
1.4 albertel 142: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
143: $Apache::optionresponse::conceptgroup=0;
144: if ($target eq 'web' || $target eq 'grade') {
145: my @names = @{ $Apache::response::conceptgroup{'names'} };
146: my $pick=int rand $#names+1;
147: my $name=$names[$pick];
148: push @{ $Apache::response::foilgroup{'names'} }, $name;
149: $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};
150: $Apache::response::foilgroup{"$name.image"} = $Apache::response::conceptgroup{"$name.image"};
151: push(@{ $Apache::response::foilgroup{"$name.area"} }, @{ $Apache::response::conceptgroup{"$name.area"} });
152: my $args;
153: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
154: my $concept = &Apache::run::run("{$args;".'return $concept}',$safeeval);
155: $Apache::response::foilgroup{"$name.concept"} = $concept;
156: &Apache::lonxml::debug("Selecting $name in $concept");
157: }
158: return '';
1.1 albertel 159: }
160:
161: $Apache::imageresponse::curname='';
162: sub start_foil {
163: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
164: if ($target eq 'web' || $target eq 'grade') {
165: my $args ='';
166: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
167: my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
1.3 albertel 168: if ($name eq '') { $name=$Apache::lonxml::curdepth; }
169: push(@{ $Apache::response::foilgroup{'names'} }, $name);
1.1 albertel 170: $Apache::imageresponse::curname=$name;
171: }
172: return '';
173: }
174:
175: sub end_foil {
176: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
177: return '';
178: }
179:
180: sub start_text {
181: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 182: if ($target eq 'web') { &Apache::lonxml::startredirection; }
1.1 albertel 183: return '';
184: }
185:
186: sub end_text {
187: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
188: if ($target eq 'web') {
189: my $name = $Apache::imageresponse::curname;
1.3 albertel 190: $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
1.1 albertel 191: }
192: return '';
193: }
194:
195: sub start_image {
196: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 197: if ($target eq 'web') { &Apache::lonxml::startredirection; }
1.2 albertel 198: return '';
1.1 albertel 199: }
200:
201: sub end_image {
202: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.2 albertel 203: if ($target eq 'web') {
204: my $name = $Apache::imageresponse::curname;
1.3 albertel 205: my $image = &Apache::lonxml::endredirection;
206: &Apache::lonxml::debug("out is $image");
207: $Apache::response::foilgroup{"$name.image"} = $image;
1.2 albertel 208: }
209: return '';
1.1 albertel 210: }
211:
212: sub start_rectangle {
213: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 214: if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; }
1.2 albertel 215: return '';
1.1 albertel 216: }
217:
1.3 albertel 218: sub grade_rectangle {
219: my ($spec,$x,$y) = @_;
220: &Apache::lonxml::debug("Spec is $spec");
221: $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
222: my $x1=$1;
223: my $y1=$2;
224: my $x2=$3;
225: my $y2=$4;
226: &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
227: if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
228: if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
229: if ($x => $x1) { if ($x <= $x2) { if ($y => $y1) { if ($y <= $y2) { return 'APPROX_ANS'; } } } }
230: return 'INCORRECT';
231: }
232:
1.1 albertel 233: sub end_rectangle {
234: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 235: if ($target eq 'web' || $target eq 'grade') {
1.2 albertel 236: my $name = $Apache::imageresponse::curname;
1.3 albertel 237: my $area = &Apache::lonxml::endredirection;
238: &Apache::lonxml::debug("out is $area for $name");
239: push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
1.2 albertel 240: }
1.3 albertel 241: return '';
1.1 albertel 242: }
243: 1;
244: __END__
245:
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