Module: Prawn::Format
- Defined in:
- lib/prawn/format.rb,
lib/prawn/format/line.rb,
lib/prawn/format/lexer.rb,
lib/prawn/format/state.rb,
lib/prawn/format/parser.rb,
lib/prawn/format/version.rb,
lib/prawn/format/text_object.rb,
lib/prawn/format/effects/link.rb,
lib/prawn/format/layout_builder.rb,
lib/prawn/format/effects/underline.rb,
lib/prawn/format/instructions/base.rb,
lib/prawn/format/instructions/text.rb,
lib/prawn/format/instructions/tag_open.rb,
lib/prawn/format/instructions/tag_close.rb
Defined Under Namespace
Modules: Effects, Instructions Classes: LayoutBuilder, Lexer, Line, Parser, State, TextObject
Constant Summary collapse
- DEFAULT_TAGS =
{ :a => { :meta => { :name => :anchor, :href => :target }, :color => "0000ff", :text_decoration => :underline }, :b => { :font_weight => :bold }, :br => { :display => :break }, :code => { :font_family => "Courier", :font_size => "90%" }, :em => { :font_style => :italic }, :font => { :meta => { :face => :font_family, :color => :color, :size => :font_size } }, :i => { :font_style => :italic }, :pre => { :white_space => :pre, :font_family => "Courier", :font_size => "90%" }, :span => {}, :strong => { :font_weight => :bold }, :sub => { :vertical_align => :sub, :font_size => "70%" }, :sup => { :vertical_align => :super, :font_size => "70%" }, :tt => { :font_family => "Courier" }, :u => { :text_decoration => :underline }, }.freeze
- VERSION =
"0.2.3"
Instance Method Summary collapse
- #default_style ⇒ Object
- #draw_lines(x, y, width, lines, options = {}) ⇒ Object
- #evaluate_measure(measure, options = {}) ⇒ Object
- #format(text, options = {}) ⇒ Object
-
#height_of(string, line_width, size = font_size, options = {}) ⇒ Object
Overloaded version of #height_of.
- #layout(text, options = {}) {|helper| ... } ⇒ Object
- #styles(update = {}) ⇒ Object
- #tags(update = {}) ⇒ Object
-
#text(text, options = {}) ⇒ Object
Overloaded version of #text.
- #text_object ⇒ Object
-
#width_of(string, options = {}) ⇒ Object
Overloaded version of #width_of.
Instance Method Details
#default_style ⇒ Object
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# File 'lib/prawn/format.rb', line 63 def default_style { :font_family => font.family || font.name, :font_size => font_size, :color => fill_color } end |
#draw_lines(x, y, width, lines, options = {}) ⇒ Object
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# File 'lib/prawn/format.rb', line 103 def draw_lines(x, y, width, lines, ={}) real_x, real_y = translate(x, y) state = [:state] || {} [:align] ||= :left state = state.merge(:width => width, :x => x, :y => y, :real_x => real_x, :real_y => real_y, :dx => 0, :dy => 0) state[:cookies] ||= {} state[:pending_effects] ||= [] return state if lines.empty? text_object do |text| text.rotate(real_x, real_y, [:rotate] || 0) state[:text] = text lines.each { |line| line.draw_on(self, state, ) } end state.delete(:text) #rectangle [x, y+state[:dy]], width, state[:dy] #stroke return state end |
#evaluate_measure(measure, options = {}) ⇒ Object
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# File 'lib/prawn/format.rb', line 69 def evaluate_measure(measure, ={}) case measure when nil then nil when Numeric then return measure when Symbol then mappings = [:mappings] || {} raise ArgumentError, "unrecognized value #{measure.inspect}" unless mappings.key?(measure) return evaluate_measure(mappings[measure], ) when String then operator, value, unit = measure.match(/^([-+]?)(\d+(?:\.\d+)?)(.*)$/)[1,3] value = case unit when "%" then relative = [:relative] || 0 relative * value.to_f / 100 when "em" then # not a true em, but good enough for approximating. patches welcome. value.to_f * ([:em] || font_size) when "", "pt" then return value.to_f when "pc" then return value.to_f * 12 when "in" then return value.to_f * 72 else raise ArgumentError, "unsupport units in style value: #{measure.inspect}" end current = [:current] || 0 case operator when "+" then return current + value when "-" then return current - value else return value end else return measure.to_f end end |
#format(text, options = {}) ⇒ Object
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# File 'lib/prawn/format.rb', line 139 def format(text, ={}) if [:at] x, y = [:at] format_positioned_text(text, x, y, ) else format_wrapped_text(text, ) end end |
#height_of(string, line_width, size = font_size, options = {}) ⇒ Object
Overloaded version of #height_of.
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# File 'lib/prawn/format.rb', line 19 def height_of(string, line_width, size=font_size, ={}) #:nodoc: if unformatted?(string, ) super(string, line_width, size) else formatted_height(string, line_width, size, ) end end |
#layout(text, options = {}) {|helper| ... } ⇒ Object
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# File 'lib/prawn/format.rb', line 133 def layout(text, ={}) helper = Format::LayoutBuilder.new(self, text, ) yield helper if block_given? return helper end |
#styles(update = {}) ⇒ Object
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# File 'lib/prawn/format.rb', line 58 def styles(update={}) @styles ||= {} @styles.update(update) end |
#tags(update = {}) ⇒ Object
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# File 'lib/prawn/format.rb', line 53 def (update={}) @tags ||= DEFAULT_TAGS.dup @tags.update(update) end |
#text(text, options = {}) ⇒ Object
Overloaded version of #text.
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# File 'lib/prawn/format.rb', line 10 def text(text, ={}) #:nodoc: if unformatted?(text, ) super else format(text, ) end end |
#text_object ⇒ Object
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# File 'lib/prawn/format.rb', line 148 def text_object object = TextObject.new if block_given? yield object.open add_content(object.close) end return object end |
#width_of(string, options = {}) ⇒ Object
Overloaded version of #width_of.
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# File 'lib/prawn/format.rb', line 28 def width_of(string, ={}) #:nodoc: if unformatted?(string, ) super else formatted_width(string, ) end end |