Class: CTioga2::Graphics::Styles::TextLabel
- Inherits:
-
FullTextStyle
- Object
- BasicStyle
- BaseTextStyle
- FullTextStyle
- CTioga2::Graphics::Styles::TextLabel
- Defined in:
- lib/ctioga2/graphics/styles/texts.rb
Overview
A label.
Constant Summary
Constants inherited from BasicStyle
BasicStyle::AllStyles, BasicStyle::OldAttrAccessor
Instance Method Summary collapse
-
#draw(t, default = nil, measure = nil) ⇒ Object
Draw the label, if #text is not nil or false.
-
#initialize(text = nil, loc = nil) ⇒ TextLabel
constructor
A new instance of TextLabel.
-
#label_extension(t, default = nil, location = nil) ⇒ Object
Gets the extension of the label, in units of text height.
Methods inherited from BaseTextStyle
#draw_text, #hash_for_tioga, #scale_dy, #shift_dy, #vertical?
Methods inherited from BasicStyle
alias_for, attr_accessor, attribute_type, attribute_types, attributes, deprecated_attribute, from_hash, inherited, #instance_variable_defined?, options_hash, #set_from_hash, sub_style, sub_styles, #to_hash, typed_attribute, #update_from_other
Constructor Details
#initialize(text = nil, loc = nil) ⇒ TextLabel
Returns a new instance of TextLabel.
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# File 'lib/ctioga2/graphics/styles/texts.rb', line 192 def initialize(text = nil, loc = nil) super() @text = text @loc = loc end |
Instance Method Details
#draw(t, default = nil, measure = nil) ⇒ Object
Draw the label, if #text is not nil or false. Attributes such as scale, shift and angle are taken from the corresponding default if default isn’t nil.
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# File 'lib/ctioga2/graphics/styles/texts.rb', line 201 def draw(t, default = nil, measure = nil) if @text dict = prepare_label_dict(t, default, measure) t.show_text(dict) end end |
#label_extension(t, default = nil, location = nil) ⇒ Object
Gets the extension of the label, in units of text height. Default values for the various parameters are taken from the default parameter if they are not specified.
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# File 'lib/ctioga2/graphics/styles/texts.rb', line 211 def label_extension(t, default = nil, location = nil) if @text dict = prepare_label_dict(t, default, nil) extra = 0 if location extra = location.label_extra_space(t) end return (dict['shift'] + extra) * dict['scale'] else return 0 end end |