Class: Latex::Tabular

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-latex.rb

Instance Method Summary collapse

Constructor Details

#initialize(cols) ⇒ Tabular

Returns a new instance of Tabular.



58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/ruby-latex.rb', line 58

def initialize(cols)
    @header = nil
    
    if cols.is_a? Array
        @columns        = cols.map { |e| e.to_sym }
        @columns_info   = cols.map { |e| [e, Column.new] }.to_h
        
    elsif cols.is_a? Hash
        keys = cols.keys
        @columns_info   = cols.clone
        @columns        = keys.map { |k| k.to_sym }
        
        if @columns_info.values.any? { |c| c.header }
            headers_row = @columns.map { |c| [c, @columns_info[c].header.to_s] }.to_h
            @header = HeaderRowFamily.new(@columns_info, Row.new(headers_row))
        end
        
    else
        raise "Invalid argument: expected Array or Hash"
    end
    
    @rows   = RowFamily.new(@columns_info)
end

Instance Method Details

#add_row(row) ⇒ Object Also known as: << 



101
102
103
 
# File 'lib/ruby-latex.rb', line 101

def add_row(row)
    @rows << Row.new(row)
end

#add_separator(type = "\\midrule") ⇒ Object 



106
107
108
 
# File 'lib/ruby-latex.rb', line 106

def add_separator(type="\\midrule")
    @rows << RowSeparator.new(type)
end

#align_string ⇒ Object 



133
134
135
 
# File 'lib/ruby-latex.rb', line 133

def align_string
    @columns.map { |col| @columns_info[col].is_a?(Column) ? @columns_info[col].align : auto_align(col) }.join(" ")
end

#auto_align(col) ⇒ Object 



137
138
139
 
# File 'lib/ruby-latex.rb', line 137

def auto_align(col)
    @rows.rows.map { |row| row[col] }.all? { |e| e.is_a?(Numeric) } ? 'r' : 'l'
end

#column_sizes ⇒ Object 



127
128
129
130
131
 
# File 'lib/ruby-latex.rb', line 127

def column_sizes
    header_sizes = @header ? [ @header.row.sizes ] : []
    sizes = @rows.rows.map { |row| row.sizes } + header_sizes
    @columns.map { |col| [col, (sizes.map { |e| e[col] }).max] }.to_h 
end

#content_style(&block) ⇒ Object 



90
91
92
93
94
95
 
# File 'lib/ruby-latex.rb', line 90

def content_style(&block)
    raise "Block expected" unless block_given?
    @rows.styler = block
    
    return self
end

#header=(row) ⇒ Object 



97
98
99
 
# File 'lib/ruby-latex.rb', line 97

def header=(row)
    @header = HeaderRowFamily.new(@columns_info, Row.new(row))
end

#header_style(&block) ⇒ Object 



82
83
84
85
86
87
88
 
# File 'lib/ruby-latex.rb', line 82

def header_style(&block)
    raise "Block expected" unless block_given?
    raise "No header to style" unless @header
    @header.styler = block
    
    return self
end

#to_tex ⇒ Object 



110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
 
# File 'lib/ruby-latex.rb', line 110

def to_tex
    sizes = self.column_sizes
    
    out = []
    out << "  \\begin{tabular}{#{self.align_string}}"
    out << "    \\toprule"
    if @header
        out << "    " + @header.row.to_tex(sizes)
        out << "    \\midrule"
    end
    out += @rows.rows.map { |row| "    " + row.to_tex(sizes) }
    out << "    \\bottomrule"
    out << "  \\end{tabular}"
    
    return out.join("\n")
end