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1 package Bio::Graphics::Glyph::line;
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2 # an arrow without the arrowheads
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3
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4 use strict;
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5 use vars '@ISA';
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6 @ISA = 'Bio::Graphics::Glyph::generic';
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7 use Bio::Graphics::Glyph::generic;
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8
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9 sub bottom {
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10 my $self = shift;
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11 my $val = $self->SUPER::bottom(@_);
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12 $val += $self->font->height if $self->option('tick');
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13 $val += $self->labelheight if $self->option('label');
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14 $val;
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15 }
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16
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17 sub draw {
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18 my $self = shift;
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19 my $gd = shift;
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20 my ($x1,$y1,$x2,$y2) = $self->calculate_boundaries(@_);
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21
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22 my $fg = $self->fgcolor;
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23 my $a2 = $self->SUPER::height/2;
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24 my $center = $y1+$a2;
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25
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26 $gd->line($x1,$center,$x2,$center,$fg);
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27 # add a label if requested
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28 $self->draw_label($gd,@_) if $self->option('label');
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29
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30 }
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31
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32 1;
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33
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34 __END__
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35
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36 =head1 NAME
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37
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38 Bio::Graphics::Glyph::line - The "line" glyph
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39
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40 =head1 SYNOPSIS
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41
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42 See L<Bio::Graphics::Panel> and L<Bio::Graphics::Glyph>.
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43
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44 =head1 DESCRIPTION
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45
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46 This glyph draws a line parallel to the sequence segment.
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47
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48 =head2 OPTIONS
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49
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50 This glyph takes only the standard options. See
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51 L<Bio::Graphics::Glyph> for a full explanation.
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52
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53 Option Description Default
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54 ------ ----------- -------
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55
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56 -fgcolor Foreground color black
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57
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58 -outlinecolor Synonym for -fgcolor
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59
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60 -bgcolor Background color turquoise
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61
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62 -fillcolor Synonym for -bgcolor
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63
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64 -linewidth Line width 1
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65
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66 -height Height of glyph 10
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67
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68 -font Glyph font gdSmallFont
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69
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70 -connector Connector type 0 (false)
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71
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72 -connector_color
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73 Connector color black
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74
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75 -label Whether to draw a label 0 (false)
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76
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77 -description Whether to draw a description 0 (false)
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78
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79 -strand_arrow Whether to indicate 0 (false)
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80 strandedness
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81
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82 =head1 BUGS
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83
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84 Please report them.
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85
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86 =head1 SEE ALSO
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87
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88 L<Bio::Graphics::Panel>,
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89 L<Bio::Graphics::Glyph>,
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90 L<Bio::Graphics::Glyph::arrow>,
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91 L<Bio::Graphics::Glyph::cds>,
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92 L<Bio::Graphics::Glyph::crossbox>,
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93 L<Bio::Graphics::Glyph::diamond>,
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94 L<Bio::Graphics::Glyph::dna>,
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95 L<Bio::Graphics::Glyph::dot>,
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96 L<Bio::Graphics::Glyph::ellipse>,
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97 L<Bio::Graphics::Glyph::extending_arrow>,
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98 L<Bio::Graphics::Glyph::generic>,
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99 L<Bio::Graphics::Glyph::graded_segments>,
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100 L<Bio::Graphics::Glyph::heterogeneous_segments>,
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101 L<Bio::Graphics::Glyph::line>,
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102 L<Bio::Graphics::Glyph::pinsertion>,
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103 L<Bio::Graphics::Glyph::primers>,
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104 L<Bio::Graphics::Glyph::rndrect>,
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105 L<Bio::Graphics::Glyph::segments>,
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106 L<Bio::Graphics::Glyph::ruler_arrow>,
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107 L<Bio::Graphics::Glyph::toomany>,
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108 L<Bio::Graphics::Glyph::transcript>,
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109 L<Bio::Graphics::Glyph::transcript2>,
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110 L<Bio::Graphics::Glyph::translation>,
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111 L<Bio::Graphics::Glyph::triangle>,
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112 L<Bio::DB::GFF>,
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113 L<Bio::SeqI>,
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114 L<Bio::SeqFeatureI>,
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115 L<Bio::Das>,
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116 L<GD>
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117
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118 =head1 AUTHOR
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119
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120 Allen Day E<lt>day@cshl.orgE<gt>.
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121
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122 Copyright (c) 2001 Cold Spring Harbor Laboratory
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123
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124 This library is free software; you can redistribute it and/or modify
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125 it under the same terms as Perl itself. See DISCLAIMER.txt for
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126 disclaimers of warranty.
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127
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128 =cut
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