'.
+ &Apache::edit::editfield('',$text,'',20,1).
+ &Apache::edit::end_table();
+ } elsif ($target eq 'modified') {
+ # Why do I do this?
+ my $text=$$parser[-1]->get_text("/function");
+ $result.=&Apache::edit::modifiedfield($token);
+ }
return $result;
}
sub end_function {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
+ if ($target eq 'web') {
+ } elsif ($target eq 'edit') {
+ }
return $result;
}
@@ -248,14 +539,55 @@ sub end_function {
sub start_data {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- push( @{$curves[-1]->{'data'}},
- &Apache::lonxml::get_all_text("/data",$$parser[-1]));
+ if ($target eq 'web') {
+ if (exists($curves[-1]->{'function'})) {
+ &Apache::lonxml::warning('Use of precludes use of .'.
+ '. The will be omitted in favor of '.
+ 'the declaration.');
+ delete($curves[-1]->{'function'});
+ }
+ my $datatext = &Apache::lonxml::get_all_text("/data",$$parser[-1]);
+ $datatext =~ s/\s+/ /g;
+ # Need to do some error checking on the @data array -
+ # make sure it's all numbers and make sure each array
+ # is of the same length.
+ my @data;
+ if ($datatext =~ /,/) {
+ @data = split /,/,$datatext;
+ } else { # Assume it's space seperated.
+ @data = split / /,$datatext;
+ }
+ for (my $i=0;$i<=$#data;$i++) {
+ # Check that it's non-empty
+ if (! defined($data[$i])) {
+ &Apache::lonxml::warning(
+ 'undefined value. Replacing with '.
+ ' pi/e = 1.15572734979092');
+ $data[$i] = 1.15572734979092;
+ }
+ # Check that it's a number
+ if (! &$real_test($data[$i]) & ! &$int_test($data[$i])) {
+ &Apache::lonxml::warning(
+ 'Bad value of '.$data[$i].' Replacing with '.
+ ' pi/e = 1.15572734979092');
+ $data[$i] = 1.15572734979092;
+ }
+ }
+ push @{$curves[-1]->{'data'}},\@data;
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
+ my $text=$$parser[-1]->get_text("/data");
+ $result.=&Apache::edit::modifiedfield($token);
+ }
return $result;
}
sub end_data {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
+ if ($target eq 'web') {
+ } elsif ($target eq 'edit') {
+ }
return $result;
}
@@ -263,22 +595,285 @@ sub end_data {
sub start_axis {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- &get_attributes(\%axis,\%label_defaults,$parstack,$safeeval);
+ if ($target eq 'web') {
+ &get_attributes(\%axis,\%axis_defaults,$parstack,$safeeval,
+ $tagstack->[-1]);
+ } elsif ($target eq 'edit') {
+ $result .= &Apache::edit::tag_start($target,$token);
+ $result .= &edit_attributes($target,$token,\%axis_defaults);
+ } elsif ($target eq 'modified') {
+ }
return $result;
}
sub end_axis {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
+ if ($target eq 'web') {
+ } elsif ($target eq 'edit') {
+ $result.=&Apache::edit::tag_end($target,$token);
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args
+ ($token,$parstack,$safeeval,keys %axis_defaults);
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.= &Apache::edit::handle_insert();
+ }
+ }
return $result;
}
+###################################################################
+## ##
+## Utility Functions ##
+## ##
+###################################################################
+
+##----------------------------------------------------------- set_defaults
+sub set_defaults {
+ my ($var,$defaults) = @_;
+ my $key;
+ foreach $key (keys %$defaults) {
+ $var->{$key} = $defaults->{$key}->{'default'};
+ }
+}
+
##------------------------------------------------------------------- misc
-sub newhashref{
- my %hash;
- return \%hash;
+sub get_attributes{
+ my ($values,$defaults,$parstack,$safeeval,$tag) = @_;
+ foreach my $attr (keys %{$defaults}) {
+ $values->{$attr} =
+ &Apache::lonxml::get_param($attr,$parstack,$safeeval);
+ if ($values->{$attr} eq '' | !defined($values->{$attr})) {
+ $values->{$attr} = $defaults->{$attr}->{'default'};
+ next;
+ }
+ my $test = $defaults->{$attr}->{'test'};
+ if (! &$test($values->{$attr})) {
+ &Apache::lonxml::warning
+ ($tag.':'.$attr.': Bad value.'.'Replacing your value with : '
+ .$defaults->{$attr}->{'default'} );
+ $values->{$attr} = $defaults->{$attr}->{'default'};
+ }
+ }
+ return ;
+}
+##------------------------------------------------------- write_gnuplot_file
+sub write_gnuplot_file {
+ my $gnuplot_input = '';
+ my $curve;
+ # Collect all the colors
+ my @Colors;
+ push @Colors, $plot{'bgcolor'};
+ push @Colors, $plot{'fgcolor'};
+ push @Colors, (defined($axis{'color'})?$axis{'color'}:$plot{'fgcolor'});
+ foreach $curve (@curves) {
+ push @Colors, ($curve->{'color'} ne '' ?
+ $curve->{'color'} :
+ $plot{'fgcolor'} );
+ }
+ # set term
+ $gnuplot_input .= 'set term gif ';
+ $gnuplot_input .= 'transparent ' if ($plot{'transparent'} eq 'on');
+ $gnuplot_input .= $plot{'font'} . ' ';
+ $gnuplot_input .= 'size '.$plot{'width'}.','.$plot{'height'}.' ';
+ $gnuplot_input .= "@Colors\n";
+ # grid
+ $gnuplot_input .= 'set grid'.$/ if ($plot{'grid'} eq 'on');
+ # border
+ $gnuplot_input .= ($plot{'border'} eq 'on'?
+ 'set border'.$/ :
+ 'set noborder'.$/ ); # title, xlabel, ylabel
+ $gnuplot_input .= "set output\n";
+ $gnuplot_input .= "set title \"$title\"\n" if (defined($title)) ;
+ $gnuplot_input .= "set xlabel \"$xlabel\"\n" if (defined($xlabel));
+ $gnuplot_input .= "set ylabel \"$ylabel\"\n" if (defined($ylabel));
+ if (defined(%axis)) {
+ $gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n";
+ $gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n";
+ }
+ # Key
+ if (defined(%key)) {
+ $gnuplot_input .= 'set key '.$key{'pos'}.' ';
+ if ($key{'title'} ne '') {
+ $gnuplot_input .= 'title "'.$key{'title'}.'" ';
+ }
+ $gnuplot_input .= ($key{'box'} eq 'on' ? 'box ' : 'nobox ').$/;
+ } else {
+ $gnuplot_input .= 'set nokey'.$/;
+ }
+ # labels
+ my $label;
+ foreach $label (@labels) {
+ $gnuplot_input .= 'set label "'.$label->{'text'}.'" at '.
+ $label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'}.$/ ;
+ }
+ # curves
+ $gnuplot_input .= 'plot ';
+ my $datatext = '';
+ for (my $i = 0;$i<=$#curves;$i++) {
+ $curve = $curves[$i];
+ $gnuplot_input.= ', ' if ($i > 0);
+ if (exists($curve->{'function'})) {
+ $gnuplot_input.=
+ $curve->{'function'}.' title "'.
+ $curve->{'name'}.'" with '.
+ $curve->{'linestyle'};
+ } elsif (exists($curve->{'data'})) {
+ $gnuplot_input.= '\'-\' title "'.
+ $curve->{'name'}.'" with '.
+ $curve->{'linestyle'};
+ my @Data = @{$curve->{'data'}};
+ my @Data0 = @{$Data[0]};
+ for (my $i =0; $i<=$#Data0; $i++) {
+ my $dataset;
+ foreach $dataset (@Data) {
+ $datatext .= $dataset->[$i] . ' ';
+ }
+ $datatext .= $/;
+ }
+ $datatext .=$/;
+ }
+ }
+ $gnuplot_input .= $/.$datatext;
+ return $gnuplot_input;
}
+#---------------------------------------------- check_inputs
+sub check_inputs {
+ ## Note: no inputs, no outputs - this acts only on global variables.
+ ## Make sure we have all the input we need:
+ if (! defined(%plot )) { &set_defaults(\%plot,\%plot_defaults); }
+ if (! defined(%key )) {} # No key for this plot, thats okay
+ if (! defined(%axis )) { &set_defaults(\%axis,\%axis_defaults); }
+ if (! defined($title )) {} # No title for this plot, thats okay
+ if (! defined($xlabel)) {} # No xlabel for this plot, thats okay
+ if (! defined($ylabel)) {} # No ylabel for this plot, thats okay
+ if ($#labels < 0) { } # No labels for this plot, thats okay
+ if ($#curves < 0) {
+ &Apache::lonxml::warning("No curves specified for plot!!!!");
+ return '';
+ }
+ my $curve;
+ foreach $curve (@curves) {
+ if (!defined($curve->{'function'})&&!defined($curve->{'data'})){
+ &Apache::lonxml::warning("One of the curves specified did not contain any or declarations\n");
+ return '';
+ }
+ }
+}
+
+#------------------------------------------------ make_edit
+sub edit_attributes {
+ my ($target,$token,$defaults) = @_;
+ my $result;
+ foreach my $attr (%$defaults) {
+ if ($defaults->{$attr}->{'edit_type'} eq 'entry') {
+ $result .= &Apache::edit::text_arg(
+ $defaults->{$attr}->{'description'},
+ $attr,
+ $token);
+ } elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') {
+ $result .= &Apache::edit::select_arg(
+ $defaults->{$attr}->{'description'},
+ $attr,
+ $defaults->{$attr}->{'choices'},
+ $token);
+ }
+ }
+ return $result;
+}
+
+
+###################################################################
+## ##
+## Insertion functions for editing plots ##
+## ##
+###################################################################
+
+#------------------------------------------------ insert_xxxxxxx
+sub insert_plot {
+ my $result;
+ # plot attributes
+ $result .= '{'default'}.
+ "\"\n";
+ }
+ $result .= ">\n";
+ # Add the components
+ $result .= &insert_key();
+ $result .= &insert_axis();
+ $result .= &insert_label();
+ $result .= &insert_curve();
+ $result .= &insert_function();
+ $result .= "\n";
+ $result .= &insert_curve();
+ $result .= &insert_data();
+ $result .= "\n";
+ # close up the
+ $result .= "\n";
+ return $result;
+}
+
+sub insert_key {
+ my $result;
+ $result .= ' {'default'}.
+ "\"\n";
+ }
+ $result .= " />\n";
+ return $result;
+}
+sub insert_axis{
+ my $result;
+ $result .= ' {'default'}.
+ "\"\n";
+ }
+ $result .= " />\n";
+ return $result;
+}
+
+sub insert_label {
+ my $result;
+ $result .= ' \n";
+ return $result;
+}
+
+sub insert_curve {
+ my $result;
+ $result .= ' {'default'}."\"\n";
+ }
+ $result .= " >\n";
+}
+
+sub insert_function {
+ my $result;
+ $result .= "\n";
+ return $result;
+}
+
+sub insert_data {
+ my $result;
+ $result .= " \n";
+ $result .= " \n";
+ return $result;
+}
+
+##----------------------------------------------------------------------
1;
__END__
+
+
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