visad.browser
Class RangeSlider

java.lang.Object
  java.awt.Component
      visad.browser.RangeSlider

All Implemented Interfaces:

MouseListener, MouseMotionListener, ImageObserver, MenuContainer, Serializable, EventListener

Direct Known Subclasses:

RangeSlider

public class RangeSlider
extends Component
implements MouseListener, MouseMotionListener

A slider widget that allows users to select a lower and upper bound.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

static String	DEFAULT_NAME Default variable name.
static int	FONT_BOTTOM_Y Y-coordinate of bottom of font.
static int	FONT_HEIGHT Height of font.
static int	FONT_TOP_Y Y-coordinate of top of font.
static int	GRIP_BOTTOM_Y Y-coordinate of bottom of grip.
static int	GRIP_HEIGHT Height of grip.
static int	GRIP_MIDDLE_Y Y-coordinate of middle of grip.
static int	GRIP_TOP_Y Y-coordinate of top of grip.
static int	GRIP_WIDTH Width of grip.
protected boolean	lSlideMoved Flag whether left gripper has moved.
protected int	maxGrip Location of max gripper.
protected float	maxLimit Maximum slider value.
protected Dimension	maxSize Maximum widget size.
protected float	maxValue Percent through scale of max gripper.
protected int	minGrip Location of min gripper.
protected float	minLimit Minimum slider value.
protected Dimension	minSize Minimum widget size.
protected float	minValue Percent through scale of min gripper.
protected Dimension	prefSize Preferred widget size.
protected boolean	rSlideMoved Flag whether right gripper has moved.
static int	SLIDER_LINE_HEIGHT Height of slider line.
static int	SLIDER_LINE_WIDTH Width of slider line.
static int	SLIDER_PREF_HEIGHT Preferred slider height.
static int	SLIDER_PREF_WIDTH Preferred slider width.
protected boolean	textChanged Flag whether current text string value needs updating.

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

RangeSlider(String n, float min, float max)
Constructs a RangeSlider with the specified range of values.

Method Summary

Dimension	getMaximumSize() Returns maximum size of range slider.
Dimension	getMinimumSize() Returns minimum size of range slider.
float[]	getMinMaxValues() Gets minimum and maximum slider values.
Dimension	getPreferredSize() Returns preferred size of range slider.
protected float	gripToValue(int pos, int width)
static void	main(String[] argv) Main method for testing purposes.
void	mouseClicked(MouseEvent e) Not used.
void	mouseDragged(MouseEvent e) MouseMotionListener method for moving slider.
void	mouseEntered(MouseEvent e) Not used.
void	mouseExited(MouseEvent e) Not used.
void	mouseMoved(MouseEvent e) Not used.
void	mousePressed(MouseEvent e) MouseListener method for moving slider.
void	mouseReleased(MouseEvent e) MouseListener method for moving slider.
void	paint(Graphics g) Draws the slider from scratch.
void	repaint() Repaints anything that needs it.
protected void	resetValues(float min, float max) Resets the minimum and maximum values.
void	setBounds(float min, float max) Sets the slider's lo and hi bounds.
void	setBounds(int x, int y, int w, int h) Redraws the slider if the widget width changes.
void	setMaximumSize(Dimension dim) Sets preferred size of range slider.
void	setMinimumSize(Dimension dim) Sets minimum size of range slider.
void	setName(String name) Sets the slider's name.
void	setPreferredSize(Dimension dim) Sets preferred size of range slider.
void	setValues(float lo, float hi) Sets the slider's lo and hi values.
void	valuesUpdated() Called whenever the min or max value is updated.
protected int	valueToGrip(float value, int width)

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getAlignmentX, getAlignmentY, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, update, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT_NAME

public static final String DEFAULT_NAME

Default variable name.

See Also:

Constant Field Values

SLIDER_PREF_HEIGHT

public static final int SLIDER_PREF_HEIGHT

Preferred slider height.

See Also:

Constant Field Values

SLIDER_PREF_WIDTH

public static final int SLIDER_PREF_WIDTH

Preferred slider width.

See Also:

Constant Field Values

GRIP_WIDTH

public static final int GRIP_WIDTH

Width of grip.

See Also:

Constant Field Values

GRIP_HEIGHT

public static final int GRIP_HEIGHT

Height of grip.

See Also:

Constant Field Values

GRIP_TOP_Y

public static final int GRIP_TOP_Y

Y-coordinate of top of grip.

See Also:

Constant Field Values

GRIP_BOTTOM_Y

public static final int GRIP_BOTTOM_Y

Y-coordinate of bottom of grip.

See Also:

Constant Field Values

GRIP_MIDDLE_Y

public static final int GRIP_MIDDLE_Y

Y-coordinate of middle of grip.

See Also:

Constant Field Values

SLIDER_LINE_HEIGHT

public static final int SLIDER_LINE_HEIGHT

Height of slider line.

See Also:

Constant Field Values

SLIDER_LINE_WIDTH

public static final int SLIDER_LINE_WIDTH

Width of slider line.

See Also:

Constant Field Values

FONT_HEIGHT

public static final int FONT_HEIGHT

Height of font.

See Also:

Constant Field Values

FONT_TOP_Y

public static final int FONT_TOP_Y

Y-coordinate of top of font.

See Also:

Constant Field Values

FONT_BOTTOM_Y

public static final int FONT_BOTTOM_Y

Y-coordinate of bottom of font.

See Also:

Constant Field Values

minValue

protected float minValue

Percent through scale of min gripper.

maxValue

protected float maxValue

Percent through scale of max gripper.

minLimit

protected float minLimit

Minimum slider value.

maxLimit

protected float maxLimit

Maximum slider value.

minGrip

protected int minGrip

Location of min gripper.

maxGrip

protected int maxGrip

Location of max gripper.

lSlideMoved

protected boolean lSlideMoved

Flag whether left gripper has moved.

rSlideMoved

protected boolean rSlideMoved

Flag whether right gripper has moved.

textChanged

protected boolean textChanged

Flag whether current text string value needs updating.

minSize

protected Dimension minSize

Minimum widget size.

prefSize

protected Dimension prefSize

Preferred widget size.

maxSize

protected Dimension maxSize

Maximum widget size.

Constructor Detail

RangeSlider

public RangeSlider(String n,
                   float min,
                   float max)

Constructs a RangeSlider with the specified range of values.

Method Detail

getMinMaxValues

public float[] getMinMaxValues()

Gets minimum and maximum slider values.

resetValues

protected void resetValues(float min,
                           float max)

Resets the minimum and maximum values.

setName

public void setName(String name)

Sets the slider's name.

Overrides:

setName in class Component

setBounds

public void setBounds(float min,
                      float max)

Sets the slider's lo and hi bounds.

setValues

public void setValues(float lo,
                      float hi)

Sets the slider's lo and hi values.

setBounds

public void setBounds(int x,
                      int y,
                      int w,
                      int h)

Redraws the slider if the widget width changes.

Overrides:

setBounds in class Component

mousePressed

public void mousePressed(MouseEvent e)

MouseListener method for moving slider.

Specified by:

mousePressed in interface MouseListener

mouseReleased

public void mouseReleased(MouseEvent e)

MouseListener method for moving slider.

Specified by:

mouseReleased in interface MouseListener

mouseClicked

public void mouseClicked(MouseEvent e)

Not used.

Specified by:

mouseClicked in interface MouseListener

mouseEntered

public void mouseEntered(MouseEvent e)

Not used.

Specified by:

mouseEntered in interface MouseListener

mouseExited

public void mouseExited(MouseEvent e)

Not used.

Specified by:

mouseExited in interface MouseListener

mouseDragged

public void mouseDragged(MouseEvent e)

MouseMotionListener method for moving slider.

Specified by:

mouseDragged in interface MouseMotionListener

mouseMoved

public void mouseMoved(MouseEvent e)

Not used.

Specified by:

mouseMoved in interface MouseMotionListener

getMinimumSize

public Dimension getMinimumSize()

Returns minimum size of range slider.

Overrides:

getMinimumSize in class Component

setMinimumSize

public void setMinimumSize(Dimension dim)

Sets minimum size of range slider.

Overrides:

setMinimumSize in class Component

getPreferredSize

public Dimension getPreferredSize()

Returns preferred size of range slider.

Overrides:

getPreferredSize in class Component

setPreferredSize

public void setPreferredSize(Dimension dim)

Sets preferred size of range slider.

Overrides:

setPreferredSize in class Component

getMaximumSize

public Dimension getMaximumSize()

Returns maximum size of range slider.

Overrides:

getMaximumSize in class Component

setMaximumSize

public void setMaximumSize(Dimension dim)

Sets preferred size of range slider.

Overrides:

setMaximumSize in class Component

gripToValue

protected float gripToValue(int pos,
                            int width)

valueToGrip

protected int valueToGrip(float value,
                          int width)

valuesUpdated

public void valuesUpdated()

Called whenever the min or max value is updated. This method is meant to be overridden by extension classes.

paint

public void paint(Graphics g)

Draws the slider from scratch.

Overrides:

paint in class Component

repaint

public void repaint()

Repaints anything that needs it.

Overrides:

repaint in class Component

main

public static void main(String[] argv)

Main method for testing purposes.