class Mireru::Widget::PDF
Public Class Methods
new(file)
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Calls superclass method
# File lib/mireru/widget/pdf.rb, line 23 def initialize(file) super() document = Poppler::Document.new(file) @page_index = 0 @page_max = document.size - 1 width, height = document.first.size set_size_request(width, height) signal_connect("draw") do |widget, event| context = widget.window.create_cairo_context window_width = widget.allocated_width window_height = widget.allocated_height width_scale = window_width.to_f / width height_scale = window_height.to_f / height scale = [width_scale, height_scale].min begin context.scale(scale, scale) rescue => e $stderr.puts("#{e.class}: #{e.message}") $stderr.puts(e.backtrace) end context.render_poppler_page(document[@page_index]) context.show_page true end end
Public Instance Methods
next()
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# File lib/mireru/widget/pdf.rb, line 50 def next @page_index += 1 @page_index = @page_max if @page_index > @page_max hide show end
prev()
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# File lib/mireru/widget/pdf.rb, line 57 def prev @page_index -= 1 @page_index = 0 if @page_index < 0 hide show end