Class: Cosmos::RealtimeButtonBar

Inherits:
Qt::Widget show all
Defined in:
lib/cosmos/gui/widgets/realtime_button_bar.rb

Overview

RealtimeButtonBar class

This class implements the RealtimeButtonBar

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent, orientation = Qt::Horizontal) ⇒ RealtimeButtonBar

Constructor



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 36

def initialize (parent, orientation = Qt::Horizontal)
  super(parent)
  if orientation == Qt::Horizontal
    # Horizontal Frame for overall widget
    @overall_frame = Qt::HBoxLayout.new(self)
    @state = Qt::LineEdit.new
  else
    # Vertical Frame for overall widget
    @overall_frame = Qt::VBoxLayout.new(self)
    @state = Qt::LineEdit.new
  end
  @overall_frame.setContentsMargins(0,0,0,0)
  @state.setAlignment(Qt::AlignCenter)
  @state.setText('Connecting')
  @state.setReadOnly(true)
  @overall_frame.addWidget(@state)

  if orientation == Qt::Horizontal
    @overall_frame.addStretch
    # Buttons
    @stop_button  = Qt::PushButton.new('Stop')
    @pause_button = Qt::PushButton.new('Pause')
    @start_button = Qt::PushButton.new('Start')
    @overall_frame.addWidget(@start_button)
    @overall_frame.addWidget(@pause_button)
    @overall_frame.addWidget(@stop_button)
  else
    # Buttons
    @button_frame = Qt::HBoxLayout.new
    @start_button = Qt::PushButton.new('Start')
    @pause_button = Qt::PushButton.new('Pause')
    @stop_button  = Qt::PushButton.new('Stop')
    @button_frame.addWidget(@start_button)
    @button_frame.addWidget(@pause_button)
    @button_frame.addWidget(@stop_button)
    @overall_frame.addLayout(@button_frame)
  end

  setLayout(@overall_frame)

  # Connect handlers
  @stop_button.connect(SIGNAL('clicked()')) { @stop_callback.call if @stop_callback }
  @pause_button.connect(SIGNAL('clicked()'))  { @pause_callback.call if @pause_callback }
  @start_button.connect(SIGNAL('clicked()'))  { @start_callback.call if @start_callback }

  @start_callback = nil
  @pause_callback = nil
  @stop_callback  = nil
end

Instance Attribute Details

#pause_button ⇒ Object (readonly)

Returns the value of attribute pause_button.



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 32

def pause_button
  @pause_button
end

#pause_callback ⇒ Object

Returns the value of attribute pause_callback.



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 27

def pause_callback
  @pause_callback
end

#start_button ⇒ Object (readonly)

Readers for buttons



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 31

def start_button
  @start_button
end

#start_callback ⇒ Object

Accessors for callbacks



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 26

def start_callback
  @start_callback
end

#stop_button ⇒ Object (readonly)

Returns the value of attribute stop_button.



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 33

def stop_button
  @stop_button
end

#stop_callback ⇒ Object

Returns the value of attribute stop_callback.



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 28

def stop_callback
  @stop_callback
end

Instance Method Details

#state ⇒ Object

Returns the text in the state field



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 87

def state
  return @state.text
end

#state=(new_state) ⇒ Object

Sets the text in the state field



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# File 'lib/cosmos/gui/widgets/realtime_button_bar.rb', line 92

def state= (new_state)
  @state.setText(new_state.to_s)
end