Class: Cosmos::CanvasimageWidget

Inherits:
Object
  • Object
show all
Includes:
Widget
Defined in:
lib/cosmos/tools/tlm_viewer/widgets/canvasimage_widget.rb

Instance Attribute Summary

Attributes included from Widget

#item, #item_name, #limits_set, #limits_state, #packet, #packet_name, #polling_period, #screen, #settings, #target_name, #value, #value_type

Instance Method Summary collapse

Methods included from Widget

#context_menu, #get_tooltip_text, included, #process_settings, #set_setting, #set_subsetting, #shutdown, #update_widget

Constructor Details

#initialize(parent_layout, filename, x, y) ⇒ CanvasimageWidget

Returns a new instance of CanvasimageWidget.



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# File 'lib/cosmos/tools/tlm_viewer/widgets/canvasimage_widget.rb', line 18

def initialize(parent_layout, filename, x, y)
  super()
  @x = x.to_i
  @y = y.to_i
  @image = nil
  filename = File.join(::Cosmos::USERPATH, 'config', 'data', filename)
  unless File.exist?(filename)
    raise "Can't find the file #{filename} in #{::Cosmos::USERPATH}/config/data"
  end
  @image = Qt::Image.new(filename)
  parent_layout.add_repaint(self)
end

Instance Method Details

#dispose ⇒ Object 



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# File 'lib/cosmos/tools/tlm_viewer/widgets/canvasimage_widget.rb', line 35

def dispose
  super()
  @image.dispose
end

#paint(painter) ⇒ Object 



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# File 'lib/cosmos/tools/tlm_viewer/widgets/canvasimage_widget.rb', line 31

def paint(painter)
  painter.drawImage(@x, @y, @image) if @image
end