Class: Prawn::Table::Cell::AsciiDoc
- Inherits:
-
Prawn::Table::Cell
- Object
- Prawn::Table::Cell
- Prawn::Table::Cell::AsciiDoc
- Includes:
- Asciidoctor::Logging
- Defined in:
- lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb
Instance Attribute Summary collapse
-
#align ⇒ Object
Returns the value of attribute align.
-
#root_font_size ⇒ Object
Returns the value of attribute root_font_size.
-
#valign ⇒ Object
Returns the value of attribute valign.
Instance Method Summary collapse
-
#draw_content ⇒ Object
NOTE: prawn-table doesn’t support cells that exceed the height of a single page.
-
#dry_run ⇒ Object
NOTE: automatic image sizing only works if cell has fixed width.
- #font=(val) ⇒ Object
- #font_style=(val) ⇒ Object
-
#initialize(pdf, opts = {}) ⇒ AsciiDoc
constructor
A new instance of AsciiDoc.
- #natural_content_height ⇒ Object
- #natural_content_width ⇒ Object
- #size=(val) ⇒ Object
- #text_color=(val) ⇒ Object
Constructor Details
#initialize(pdf, opts = {}) ⇒ AsciiDoc
Returns a new instance of AsciiDoc.
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 13 def initialize pdf, opts = {} @font_options = {} @align = @valign = @root_font_size = nil super pdf, [], opts end |
Instance Attribute Details
#align ⇒ Object
Returns the value of attribute align.
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 9 def align @align end |
#root_font_size ⇒ Object
Returns the value of attribute root_font_size.
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 10 def root_font_size @root_font_size end |
#valign ⇒ Object
Returns the value of attribute valign.
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 11 def valign @valign end |
Instance Method Details
#draw_content ⇒ Object
NOTE: prawn-table doesn’t support cells that exceed the height of a single page
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 69 def draw_content if (pdf = @pdf).scratch? pdf.move_down natural_content_height return end # NOTE: draw_bounded_content automatically adds FPTolerance to width and height pdf.bounds.instance_variable_set :@width, spanned_content_width padding_adjustment = content.context == :document ? padding_bottom : 0 # NOTE: we've already reserved the space, so just let the box stretch to bottom of the content area pdf.bounds.instance_variable_set :@height, (pdf.y - pdf.page.margins[:bottom] - padding_adjustment) if @valign != :top && (excess_y = spanned_content_height - natural_content_height) > 0 # QUESTION: could this cause a unexpected page overrun? pdf.move_down(@valign == :center ? (excess_y.fdiv 2) : excess_y) end # # use perform_on_single_page to prevent content from being written on extra pages # # the problem with this approach is that we don't know whether any content is written to next page # apply_font_properties do # if (pdf.perform_on_single_page { pdf.traverse content }) # logger.error %(the table cell on page #{pdf.page_number} has been truncated; Asciidoctor PDF does not support table cell content that exceeds the height of a single page) # end # end start_page = pdf.page_number parent_doc = (doc = content.document).nested? ? doc.parent_document : doc doc.catalog[:footnotes] = parent_doc.catalog[:footnotes] # TODO: apply horizontal alignment; currently it is necessary to specify alignment on content blocks apply_font_properties { pdf.traverse content } if (extra_pages = pdf.page_number - start_page) > 0 unless extra_pages == 1 && pdf.page.empty? logger.error %(the table cell on page #{start_page} has been truncated; Asciidoctor PDF does not support table cell content that exceeds the height of a single page), source_location: @source_location end extra_pages.times { pdf.delete_current_page } end nil end |
#dry_run ⇒ Object
NOTE: automatic image sizing only works if cell has fixed width
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 36 def dry_run cell = self parent_doc = (doc = content.document).nested? ? doc.parent_document : doc padding_y = cell.padding_top + cell.padding_bottom max_height = @pdf.bounds.height extent = nil apply_font_properties do extent = @pdf.dry_run keep_together: true, single_page: true do push_scratch parent_doc # NOTE: we should be able to use cell.max_width, but returns 0 in some conditions (like when colspan > 1) indent cell.padding_left, bounds.width - cell.width + cell.padding_right do move_down padding_y if padding_y > 0 conceal_page_top { traverse cell.content } end pop_scratch parent_doc end end # NOTE: prawn-table doesn't support cells that exceed the height of a single page # NOTE: height does not include top/bottom padding, but must account for it when checking for overrun (extent.single_page_height || max_height) - padding_y end |
#font=(val) ⇒ Object
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 31 def font= val @font_options[:family] = val end |
#font_style=(val) ⇒ Object
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 19 def font_style= val @font_options[:style] = val end |
#natural_content_height ⇒ Object
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 63 def natural_content_height # NOTE: when natural_content_height is called, we already know max width @natural_content_height ||= dry_run end |
#natural_content_width ⇒ Object
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 58 def natural_content_width # QUESTION: can we get a better estimate of the natural width? @natural_content_width ||= (@pdf.bounds.width - padding_left - padding_right) end |
#size=(val) ⇒ Object
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 27 def size= val @font_options[:size] = val end |
#text_color=(val) ⇒ Object
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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/asciidoc.rb', line 23 def text_color= val @font_options[:color] = val end |