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module Fox
#
# A radio button is a tri-state button. Normally, it is either
# +TRUE+ or +FALSE+; a third state +MAYBE+ may be set to indicate that no selection
# has been made yet by the user, or that the state is ambiguous.
# When pressed, the radio button sets its state to +TRUE+ and sends a +SEL_COMMAND+
# message to its target, with the message data set to the state of the radio button.
# A group of radio buttons can be made mutually exclusive by linking them
# to a common data target (i.e. an instance of FXDataTarget).
# Alternatively, an application can implement a common +SEL_UPDATE+ handler to
# check and uncheck radio buttons as appropriate.
#
# === Events
#
# The following messages are sent by FXRadioButton to its target:
#
# +SEL_COMMAND+:: sent when the radio button is pressed.
# +SEL_KEYPRESS+:: sent when a key goes down; the message data is an FXEvent instance.
# +SEL_KEYRELEASE+:: sent when a key goes up; the message data is an FXEvent instance.
# +SEL_LEFTBUTTONPRESS+:: sent when the left mouse button goes down; the message data is an FXEvent instance.
# +SEL_LEFTBUTTONRELEASE+:: sent when the left mouse button goes up; the message data is an FXEvent instance.
#
# === RadioButton flags
#
# +RADIOBUTTON_AUTOGRAY+:: Automatically gray out when not updated
# +RADIOBUTTON_AUTOHIDE+:: Automatically hide when not updated
# +RADIOBUTTON_NORMAL+:: <tt>JUSTIFY_NORMAL|ICON_BEFORE_TEXT</tt>
#
class FXRadioButton < FXLabel
# Radio button state, one of +TRUE+, +FALSE+ or +MAYBE+ [Integer]
attr_accessor :checkState
# Radio button style [Integer]
attr_accessor :radioButtonStyle
# Radio ball color [FXColor]
attr_accessor :radioColor
# Radio disk color [FXColor]
attr_accessor :diskColor
#
# Construct new radio button
#
def initialize(parent, text, target=nil, selector=0, opts=RADIOBUTTON_NORMAL, x=0, y=0, width=0, height=0, padLeft=DEFAULT_PAD, padRight=DEFAULT_PAD, padTop=DEFAULT_PAD, padBottom=DEFAULT_PAD) # :yields: theRadioButton
end
#
# Return +true+ if the radio button state is +TRUE+
#
def checked?
self.checkState == Fox::TRUE
end
#
# Return +true+ if the radio button state is +FALSE+
#
def unchecked?
self.checkState == Fox::FALSE
end
#
# Return +true+ if the radio button state is +MAYBE+
#
def maybe?
self.checkState == Fox::MAYBE
end
end
end