can I use composer text inside page_style block?

[adas172002]

Hi,

I am trying to create a pdf page template with composer page_style method. From the examples I understand it receives 2 objects: canvas and style. Using canvas instance methods inside page_style block to create primates like rectangles is working, however I don't know how to (if possible?) create a text box with composer text call, code that calls composer.text inside page_style block generates an error undefined method 'fit' for nil:NilClass. Is this possible?

LBNL many thanks for your ongoing work on HexaPDF, list of features is growing with each release.

[gettalong]

What you want to do isn't built-in currently, i.e. use composer-like methods for a single page (i.e. canvas).

You can work-around this by doing something like this:

require 'hexapdf'

HexaPDF::Composer.create('cer.pdf', skip_page_creation: true) do |c|
  layout = c.document.layout
  c.page_style(:default, page_size: :A4) do |canvas, style|
    style.frame = style.create_frame(canvas.context, 36)

    frame2 = style.create_frame(canvas.context, 36)
    box_fitter = HexaPDF::Layout::BoxFitter.new([frame2])
    box_fitter.fit(layout.text("Test"))
    box_fitter.fit(layout.lorem_ipsum)
    if box_fitter.fit_successful?
      box_fitter.fit_results.each {|result| result.draw(canvas)}
    else
      # do something here
    end
  end
  c.new_page
end

I.e. you need to create the frame and box fitter yourself and do everything manually.

Btw. enabling this functionality is already on my todo list, will keep the issue open as reminder to implement this sooner than later :)

[gettalong]

A new HexaPDF::Content::CanvasComposer will be in the next release which can be created using canvas.composer and allows using a HexaPDF::Composer like interface for a single canvas object.