Class: TextLayout

Inherits:
Object
  • Object
show all
Defined in:
lib/Print/PrintItem/TextLayout.rb

Overview

this file is part of manqod manqod is distributed under the CDDL licence the author of manqod is Dobai-Pataky Balint([email protected])

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cr, txt, font, width, x, y, alignment = 'left') ⇒ TextLayout

Returns a new instance of TextLayout.



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# File 'lib/Print/PrintItem/TextLayout.rb', line 6

def initialize(cr,txt,font,width,x,y,alignment='left')
  @cr=cr
  @font=font
  @layout=cr.create_pango_layout
  @txt=txt
  @layout.set_text(txt)
  @x=x
  @y=y
  @width=width
  @alignment=alignment
  @layout.set_font_description(Pango::FontDescription.new(@font)).set_width(@width*Pango::SCALE)
  @layout.set_wrap(Pango::Layout::WRAP_WORD_CHAR).set_ellipsize(Pango::Layout::ELLIPSIZE_NONE)#.set_single_paragraph_mode(true)
  set_alignment
end

Instance Attribute Details

#layout ⇒ Object (readonly)

Returns the value of attribute layout.



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# File 'lib/Print/PrintItem/TextLayout.rb', line 20

def layout
  @layout
end

Instance Method Details

#draw(cr) ⇒ Object 



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# File 'lib/Print/PrintItem/TextLayout.rb', line 41

def draw(cr)
  cr.move_to(@x,@y)
  cr.show_pango_layout(@layout)
  cr.stroke
end

#height ⇒ Object 



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# File 'lib/Print/PrintItem/TextLayout.rb', line 36

def height
  w,h=@layout.size
  h/Pango::SCALE
end

#set_alignment(alignment = @alignment) ⇒ Object 



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# File 'lib/Print/PrintItem/TextLayout.rb', line 28

def set_alignment(alignment=@alignment)
  @alignment=alignment
  case @alignment
    when 'left' then @layout.set_alignment(Pango::Layout::ALIGN_LEFT)
    when 'right' then @layout.set_alignment(Pango::Layout::ALIGN_RIGHT)
    when 'center' then @layout.set_alignment(Pango::Layout::ALIGN_CENTER)
  end
end

#set_x(newx = x) ⇒ Object 



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# File 'lib/Print/PrintItem/TextLayout.rb', line 22

def set_x(newx=x)
  @x=newx
end

#set_y(newy = y) ⇒ Object 



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# File 'lib/Print/PrintItem/TextLayout.rb', line 25

def set_y(newy=y)
  @y=newy
end