Class: CTioga2::Graphics::Legends::CurveLegend

Inherits:
LegendItem
  • Object
show all
Includes:
Log
Defined in:
lib/ctioga2/graphics/legends/items.rb

Overview

The legend of a curve object, or rather, the legend corresponding to a given

todo finish to adapt: use FullTextStyle to draw the objects.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Log

debug, error, fatal, #format_exception, #identify, info, init_logger, logger, set_level, #spawn, warn

Constructor Details

#initialize(style) ⇒ CurveLegend

Returns a new instance of CurveLegend.



126
127
128
129
 
# File 'lib/ctioga2/graphics/legends/items.rb', line 126

def initialize(style)
  super()
  @curve_style = style
end

Instance Attribute Details

#curve_style ⇒ Object

Returns the value of attribute curve_style.



124
125
126
 
# File 'lib/ctioga2/graphics/legends/items.rb', line 124

def curve_style
  @curve_style
end

Instance Method Details

#draw(t, legend_style, x, y) ⇒ Object

Draw one single text line

todo adapt here !

todo x and y are not taken into account the way they should be.



136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
 
# File 'lib/ctioga2/graphics/legends/items.rb', line 136

def draw(t, legend_style, x, y)
  y = get_baseline_y(t, legend_style, y) 
  t.context do 
    # Position specification for the legend pictogram
    margin_specs = { 'left' => x,
      'right' => 1 - x - legend_style.picto_width.to_figure(t),
      'bottom' => y,
      'top' => 1 - y - legend_style.picto_height.to_figure(t)
    }
    debug { "Legend margins for '#{@curve_style.legend}' : #{margin_specs.inspect}" }
    t.subfigure(margin_specs) do
      # We make the markers slightly smaller than the text
      # around.
      t.rescale_text(0.8)
      @curve_style.draw_legend_pictogram(t)
    end
  end
  t.show_text('x' => x + 
              legend_style.picto_width.to_figure(t) + 
              legend_style.picto_to_text.to_figure(t), 
              'y' => y, 'text' => @curve_style.legend,
              'measure' => legend_name,
              'justification' => Tioga::FigureConstants::LEFT_JUSTIFIED)
end

#size(t, legend_style) ⇒ Object

Computes the size of the line. Height should always be accurate, but width can be 0 sometimes…



163
164
165
166
167
168
169
170
171
172
173
174
175
176
 
# File 'lib/ctioga2/graphics/legends/items.rb', line 163

def size(t, legend_style)
  height = legend_style.dy.to_figure(t)

  width = legend_style.picto_width.to_figure(t) + 
    legend_style.picto_to_text.to_figure(t) 

  info = t.get_text_size(legend_name)
  
  if info.key? 'width'
    width += t.convert_output_to_figure_dx(10*info['width'])
  end

  return [ width, height ]
end