org.gnu.gtk
Class Scale

java.lang.Object
  |
  +--org.gnu.glib.GObject
        |
        +--org.gnu.gtk.GtkObject
              |
              +--org.gnu.gtk.Widget
                    |
                    +--org.gnu.gtk.Range
                          |
                          +--org.gnu.gtk.Scale

Direct Known Subclasses:

HScale, VScale

public abstract class Scale

extends Range

A Scale is a slider control used to select a numeric value. To use it, you'll probably want to investigate the methods on its base class, Range, in addition to the methods for Scale itself. To set the value of a scale, you would normally use Range.setValue(double). To detect changes to the value, add RangeListener object to the widget.

The GtkScale widget is an abstract class, used only for deriving the subclasses HScale and VScale.

See Also:

HScale, VScale

Method Summary

java.lang.Class	getEventListenerClass(java.lang.String signal)
GtkEventType	getEventType(java.lang.String signal)
static Type	getType() Retrieve the runtime type used by the GLib library.
void	removeFormatListener() Removes the format listener
void	setDigits(int digits) Sets the number of decimal places that are displayed in the value.
void	setDrawValue(boolean setting) Specifies whether the current value is displayed as a string next to the slider.
void	setFormatListener(ScaleListener listener) Sets a listener to be used when a format-value request is called.
void	setValuePosition(PositionType pos) Sets the position in which the current value is displayed.

Methods inherited from class org.gnu.gtk.Range

addRangeListener, getAdjustment, getInverted, getUpdatePolicy, getValue, removeRangeListener, setAdjustment, setIncrements, setInverted, setRange, setUpdatePolicy, setValue

Methods inherited from class org.gnu.gtk.Widget

activate, addListener, addListener, addListener, addListener, addListener, addListener, createContext, createLayout, destroy, draw, drawArea, drawArea, getAccessible, getColormap, getContext, getModifierStyle, getName, getParent, getParentWindow, getPointer, getSensitive, getStyle, getToplevel, grabDefault, grabFocus, hasFocus, hide, hideAll, intersect, isAncestor, makeWidget, modifyStyle, popColormap, pushColormap, realize, removeListener, removeListener, removeListener, removeListener, removeListener, removeListener, reparent, setBackgroundColor, setBaseColor, setColormap, setDoubleBuffered, setDragDestination, setDragSource, setFont, setForegroundColor, setMinimumSize, setName, setNoDragDestination, setNoDragSource, setSensitive, setTextColor, shapeCombineMask, show, showAll

Methods inherited from class org.gnu.glib.GObject

addEventHandler, addEventHandler, addEventHandler, addEventHandler, addEventHandler, addEventHandler, equals, getData, getHandle, removeEventHandler, setData

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setDigits

public void setDigits(int digits)

Sets the number of decimal places that are displayed in the value. Also causes the value of the adjustment to be rounded off to this number of digits, so the retrieved value matches the value the user saw.

Parameters:

digits - The number of decimal places to display, e.g. use 1 to display 1.0, 2 to display 1.00 etc.

setValuePosition

public void setValuePosition(PositionType pos)

Sets the position in which the current value is displayed.

Parameters:

pos - The position in which the current value is displayed.

setDrawValue

public void setDrawValue(boolean setting)

Specifies whether the current value is displayed as a string next to the slider.

Parameters:

setting - If true, the value is displayed.

setFormatListener

public void setFormatListener(ScaleListener listener)

Sets a listener to be used when a format-value request is called.

removeFormatListener

public void removeFormatListener()

Removes the format listener

getEventListenerClass

public java.lang.Class getEventListenerClass(java.lang.String signal)

Overrides:

getEventListenerClass in class Range

getEventType

public GtkEventType getEventType(java.lang.String signal)

Overrides:

getEventType in class Range

getType

public static Type getType()

Retrieve the runtime type used by the GLib library.