Class: Gtk2SVG::DrawingInstructions

Inherits:
Object
  • Object
show all
Defined in:
lib/gtk2svg.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(area = nil) ⇒ DrawingInstructions

Returns a new instance of DrawingInstructions.



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# File 'lib/gtk2svg.rb', line 122

def initialize(area=nil)

  @area = area if area

end

Instance Attribute Details

#area ⇒ Object

Returns the value of attribute area.



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# File 'lib/gtk2svg.rb', line 119

def area
  @area
end

Instance Method Details

#draw_arc(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 128

def draw_arc(args)

  dimensions, style = args

  x, y, width, height = dimensions
  gc = gc_ini(fill: style[:fill] || :none)
  @area.window.draw_arc(gc, 1, x, y, width, height, 0, 64 * 360)
end

#draw_layout(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 179

def draw_layout(args)

  coords, text, style = args

  x, y = coords
  
  
  layout = Pango::Layout.new(Gdk::Pango.context)
  layout.font_description = Pango::FontDescription.\
                                         new('Sans ' + style[:font_size])      
  layout.text = text
        
  gc = gc_ini(fill: style[:fill] || :none)
  @area.window.draw_layout(gc, x, y, layout)
end

#draw_line(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 137

def draw_line(args)

  coords, style = args

  x1, y1, x2, y2 = coords
  gc = gc_ini(stroke: style[:stroke] || :none)
  gc.set_line_attributes(style[:'stroke-width'].to_i, Gdk::GC::LINE_SOLID, \
                                Gdk::GC::CAP_NOT_LAST, Gdk::GC::JOIN_MITER)
  @area.window.draw_line(gc, x1, y1, x2, y2)
end

#draw_lines(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 159

def draw_lines(args)

  points, style = args

  gc = gc_ini(fill: style[:fill] || :none, stroke: style[:stroke] || :none)
  gc.set_line_attributes(style[:'stroke-width'].to_i, Gdk::GC::LINE_SOLID, \
                                Gdk::GC::CAP_NOT_LAST, Gdk::GC::JOIN_MITER)
  @area.window.draw_lines(gc, points)
end

#draw_polygon(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 148

def draw_polygon(args)

  points, style = args


  gc = gc_ini(fill: style[:fill] || :none, stroke: style[:stroke] || :none)
  gc.set_line_attributes(style[:'stroke-width'].to_i, Gdk::GC::LINE_SOLID, \
                                Gdk::GC::CAP_NOT_LAST, Gdk::GC::JOIN_MITER)
  @area.window.draw_polygon(gc, 1, points)
end

#draw_rectangle(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 169

def draw_rectangle(args)

  coords, style = args

  x1, y1, x2, y2 = coords

  gc = gc_ini(fill: style[:fill] || :none)
  @area.window.draw_rectangle(gc, 1, x1, y1, x2, y2)
end

#render(a) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 198

def render(a)
  method(a[0]).call(args=a[1..2])
  draw a[3]
end

#script(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 203

def script(args)

end

#window(args) ⇒ Object 



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# File 'lib/gtk2svg.rb', line 195

def window(args)
end