IT. Expert System.

Java Standard Edition (SE)

SynthSliderUI


javax.swing.plaf.synth

Class SynthSliderUI

    • Constructor Detail

      • SynthSliderUI

        protected SynthSliderUI(JSlider c)
    • Method Detail

      • createUI

        public static ComponentUI createUI(JComponent c)
        Creates a new UI object for the given component.
        Parameters:
        c - component to create UI object for
        Returns:
        the UI object
      • uninstallDefaults

        protected void uninstallDefaults(JSlider slider)
        Uninstalls default setting. This method is called when a LookAndFeel is uninstalled.
        Overrides:
        uninstallDefaults in class BasicSliderUI
      • getBaseline

        public int getBaseline(JComponent c,
                               int width,
                               int height)
        Returns the baseline.
        Overrides:
        getBaseline in class BasicSliderUI
        Parameters:
        c - JComponent baseline is being requested for
        width - the width to get the baseline for
        height - the height to get the baseline for
        Returns:
        baseline or a value < 0 indicating there is no reasonable baseline
        See Also:
        JComponent.getBaseline(int, int)
      • getPreferredSize

        public Dimension getPreferredSize(JComponent c)
        Returns the specified component's preferred size appropriate for the look and feel. If null is returned, the preferred size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method returns null.
        Overrides:
        getPreferredSize in class BasicSliderUI
        Parameters:
        c - the component whose preferred size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
        See Also:
        JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)
      • layout

        protected void layout()
        Lays out the slider.
      • yPositionForValue

        protected int yPositionForValue(int value,
                                        int trackY,
                                        int trackHeight)
        Returns the y location for the specified value. No checking is done on the arguments. In particular if trackHeight is negative undefined results may occur.
        Overrides:
        yPositionForValue in class BasicSliderUI
        Parameters:
        value - the slider value to get the location for
        trackY - y-origin of the track
        trackHeight - the height of the track
      • valueForYPosition

        public int valueForYPosition(int yPos)
        Returns the value at the y position. If yPos is beyond the track at the the bottom or the top, this method sets the value to either the minimum or maximum value of the slider, depending on if the slider is inverted or not.
        Overrides:
        valueForYPosition in class BasicSliderUI
      • valueForXPosition

        public int valueForXPosition(int xPos)
        Returns the value at the x position. If xPos is beyond the track at the left or the right, this method sets the value to either the minimum or maximum value of the slider, depending on if the slider is inverted or not.
        Overrides:
        valueForXPosition in class BasicSliderUI
      • getContext

        public SynthContext getContext(JComponent c)
        Returns the Context for the specified component.
        Specified by:
        getContext in interface SynthUI
        Parameters:
        c - Component requesting SynthContext.
        Returns:
        SynthContext describing component.
      • update

        public void update(Graphics g,
                           JComponent c)
        Notifies this UI delegate to repaint the specified component. This method paints the component background, then calls the paint(SynthContext,Graphics) method.

        In general, this method does not need to be overridden by subclasses. All Look and Feel rendering code should reside in the paint method.

        Overrides:
        update in class ComponentUI
        Parameters:
        g - the Graphics object used for painting
        c - the component being painted
        See Also:
        paint(SynthContext,Graphics)
      • paint

        protected void paint(SynthContext context,
                             Graphics g)
        Paints the specified component.
        Parameters:
        context - context for the component being painted
        g - the Graphics object used for painting
        See Also:
        update(Graphics,JComponent)
      • paintBorder

        public void paintBorder(SynthContext context,
                                Graphics g,
                                int x,
                                int y,
                                int w,
                                int h)
        Paints the border.
        Specified by:
        paintBorder in interface SynthUI
        Parameters:
        context - a component context
        g - Graphics to paint on
        x - the X coordinate
        y - the Y coordinate
        w - width of the border
        h - height of the border
      • paintThumb

        protected void paintThumb(SynthContext context,
                                  Graphics g,
                                  Rectangle thumbBounds)
        Paints the slider thumb.
        Parameters:
        context - context for the component being painted
        g - Graphics object used for painting
        thumbBounds - bounding box for the thumb
      • paintTrack

        protected void paintTrack(SynthContext context,
                                  Graphics g,
                                  Rectangle trackBounds)
        Paints the slider track.
        Parameters:
        context - context for the component being painted
        g - Graphics object used for painting
        trackBounds - bounding box for the track
      • propertyChange

        public void propertyChange(PropertyChangeEvent e)
        This method gets called when a bound property is changed.
        Specified by:
        propertyChange in interface PropertyChangeListener
        Parameters:
        e - A PropertyChangeEvent object describing the event source and the property that has changed.


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