diff options
Diffstat (limited to 'libjava/classpath/javax/swing/plaf/metal/MetalSliderUI.java')
| -rw-r--r-- | libjava/classpath/javax/swing/plaf/metal/MetalSliderUI.java | 220 |
1 files changed, 154 insertions, 66 deletions
diff --git a/libjava/classpath/javax/swing/plaf/metal/MetalSliderUI.java b/libjava/classpath/javax/swing/plaf/metal/MetalSliderUI.java index 4b52c4b0041..08fb99d216c 100644 --- a/libjava/classpath/javax/swing/plaf/metal/MetalSliderUI.java +++ b/libjava/classpath/javax/swing/plaf/metal/MetalSliderUI.java @@ -42,8 +42,8 @@ import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Rectangle; +import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; -import java.util.HashMap; import javax.swing.Icon; import javax.swing.JComponent; @@ -56,16 +56,59 @@ import javax.swing.plaf.basic.BasicSliderUI; /** * A UI delegate for the {@link JSlider} component. */ -public class MetalSliderUI - extends BasicSliderUI +public class MetalSliderUI extends BasicSliderUI { - // TODO: find a use for this + /** + * A property change handler that updates the rendered component in response + * to specific property change events. This custom handler is used to + * intercept the "JSlider.isFilled" property, which is only recognised by + * the {@link MetalLookAndFeel}. + */ + protected class MetalPropertyListener + extends BasicSliderUI.PropertyChangeHandler + { + /** + * Creates a new listener. + */ + protected MetalPropertyListener() + { + // Nothing to do here. + } + + /** + * Handles property change events. Events with the name "JSlider.isFilled" + * are handled here, and other events are passed to the superclass. + * + * @param e the property change event. + */ + public void propertyChange(PropertyChangeEvent e) + { + if (e.getPropertyName().equals(SLIDER_FILL)) + { + Boolean b = (Boolean) e.getNewValue(); + if (b == null) + filledSlider = false; + else + filledSlider = b.booleanValue(); + } + else + super.propertyChange(e); + } + } + + /** The thumb color (unused, because an icon is used to draw the thumb). */ protected static Color thumbColor; - // TODO: find a use for this + /** + * The highlight color used for drawing the track rect when the slider is + * enabled. + */ protected static Color highlightColor; - // TODO: find a use for this + /** + * The shadow color used for drawing the track rect when the slider is + * enabled. + */ protected static Color darkShadowColor; /** The track width. */ @@ -85,17 +128,14 @@ public class MetalSliderUI /** The gap between the track and the tick marks. */ protected final int TICK_BUFFER = 4; + /** A key to look up the filledSlider setting in the {@link UIManager}. */ + protected final String SLIDER_FILL = "JSlider.isFilled"; + /** * A flag that controls whether or not the track is filled up to the value * of the slider. */ protected boolean filledSlider; - - /** A key to look up the filledSlider setting in the {@link UIManager}. */ - protected final String SLIDER_FILL = "JSlider.isFilled"; - - /** The UI instances for MetalSliderUIs */ - private static HashMap instances; /** * Constructs a new instance. @@ -104,33 +144,27 @@ public class MetalSliderUI { super(null); filledSlider = UIManager.getBoolean(SLIDER_FILL); + darkShadowColor = MetalLookAndFeel.getControlDarkShadow(); + highlightColor = MetalLookAndFeel.getControlHighlight(); } /** - * Returns an instance of MetalSliderUI. + * Returns a new instance of <code>MetalSliderUI</code>. * - * @param component the component for which we return an UI instance + * @param component the component (ignored). * - * @return an instance of MetalSliderUI + * @return A new instance of <code>MetalSliderUI</code>. */ public static ComponentUI createUI(JComponent component) { - if (instances == null) - instances = new HashMap(); - - Object o = instances.get(component); - MetalSliderUI instance; - if (o == null) - { - instance = new MetalSliderUI(); - instances.put(component, instance); - } - else - instance = (MetalSliderUI) o; - - return instance; + return new MetalSliderUI(); } + /** + * Installs the default for this UI delegate in the supplied component. + * + * @param c the component. + */ public void installUI(JComponent c) { super.installUI(c); @@ -140,6 +174,18 @@ public class MetalSliderUI } /** + * Creates a property change listener for the slider. + * + * @param slider the slider. + * + * @return A new instance of {@link MetalPropertyListener}. + */ + protected PropertyChangeListener createPropertyChangeListener(JSlider slider) + { + return new MetalPropertyListener(); + } + + /** * Paints the thumb icon for the slider. * * @param g the graphics device. @@ -153,46 +199,79 @@ public class MetalSliderUI } /** - * Creates a property change listener for the slider. - * - * @param slider the slider. - */ - protected PropertyChangeListener createPropertyChangeListener(JSlider slider) - { - // TODO: try to figure out why it might be necessary to override this - // method as is done in Sun's implementation - return super.createPropertyChangeListener(slider); - } - - /** * Paints the track along which the thumb control moves. * * @param g the graphics device. */ public void paintTrack(Graphics g) { + Color shadowColor = MetalLookAndFeel.getControlShadow(); if (slider.getOrientation() == JSlider.HORIZONTAL) - { - if (filledSlider) { - // TODO: fill the track + int trackX = trackRect.x; + int trackY = trackRect.y + (trackRect.height - getTrackWidth()) / 2; + int trackW = trackRect.width - 1; + int trackH = getTrackWidth(); + + // draw border + if (slider.isEnabled()) + BasicGraphicsUtils.drawEtchedRect(g, trackX, trackY, trackW, trackH, + darkShadowColor, shadowColor, darkShadowColor, highlightColor); + else + { + g.setColor(MetalLookAndFeel.getControlShadow()); + g.drawRect(trackX, trackY, trackW - 2, trackH - 2); + } + + // fill track (if required) + if (filledSlider) + { + int xPos = xPositionForValue(slider.getValue()); + int x = (slider.getInverted() ? xPos : trackRect.x); + int w = (slider.getInverted() ? trackX + trackW - xPos + : xPos - trackRect.x); + g.setColor(MetalLookAndFeel.getControlShadow()); + g.fillRect(x + 1, trackY + 1, w - 3, getTrackWidth() - 3); + if (slider.isEnabled()) + { + g.setColor(MetalLookAndFeel.getControl()); + g.drawLine(x + 1, trackY + 1, x + w - 3, trackY + 1); + g.drawLine(x + 1, trackY + 1, x + 1, + trackY + getTrackWidth() - 3); + } + } } - BasicGraphicsUtils.drawEtchedRect(g, trackRect.x, trackRect.y - + (trackRect.height - getTrackWidth()) / 2, trackRect.width - 1, - getTrackWidth(), Color.darkGray, Color.gray, Color.darkGray, - Color.white); - } else - { - if (filledSlider) { - // TODO: fill the track + int trackX = trackRect.x + (trackRect.width - getTrackWidth()) / 2; + int trackY = trackRect.y; + int trackW = getTrackWidth(); + int trackH = trackRect.height - 1; + if (slider.isEnabled()) + BasicGraphicsUtils.drawEtchedRect(g, trackX, trackY, trackW, trackH, + darkShadowColor, shadowColor, darkShadowColor, highlightColor); + else + { + g.setColor(MetalLookAndFeel.getControlShadow()); + g.drawRect(trackX, trackY, trackW - 2, trackH - 2); + } + + if (filledSlider) + { + int yPos = yPositionForValue(slider.getValue()); + int y = (slider.getInverted() ? trackY : yPos); + int h = (slider.getInverted() ? yPos - trackY + : trackY + trackH - yPos); + g.setColor(MetalLookAndFeel.getControlShadow()); + g.fillRect(trackX + 1, y + 1, getTrackWidth() - 3, h - 3); + if (slider.isEnabled()) + { + g.setColor(MetalLookAndFeel.getControl()); + g.drawLine(trackX + 1, y + 1, trackX + trackW - 3, y + 1); + g.drawLine(trackX + 1, y + 1, trackX + 1, y + h - 3); + } + } } - BasicGraphicsUtils.drawEtchedRect(g, trackRect.x + (trackRect.width - - getTrackWidth()) / 2, trackRect.y, getTrackWidth(), - trackRect.height - 1, Color.darkGray, Color.gray, Color.darkGray, - Color.white); - } } /** @@ -262,12 +341,13 @@ public class MetalSliderUI */ protected int getThumbOverhang() { - // TODO: figure out what this is used for + // FIXME: for what might this method be used? return 0; } protected void scrollDueToClickInTrack(int dir) { + // FIXME: for what might this method be overridden? super.scrollDueToClickInTrack(dir); } @@ -283,8 +363,10 @@ public class MetalSliderUI { // Note the incoming 'g' has a translation in place to get us to the // start of the tick rect already... - // TODO: get color from UIManager... - g.setColor(new Color(153, 153, 204)); + if (slider.isEnabled()) + g.setColor(MetalLookAndFeel.getPrimaryControlShadow()); + else + g.setColor(MetalLookAndFeel.getControlDisabled()); g.drawLine(x, TICK_BUFFER, x, TICK_BUFFER + tickLength / 2); } @@ -300,8 +382,10 @@ public class MetalSliderUI { // Note the incoming 'g' has a translation in place to get us to the // start of the tick rect already... - // TODO: get color from UIManager... - g.setColor(new Color(153, 153, 204)); + if (slider.isEnabled()) + g.setColor(MetalLookAndFeel.getPrimaryControlShadow()); + else + g.setColor(MetalLookAndFeel.getControlDisabled()); g.drawLine(x, TICK_BUFFER, x, TICK_BUFFER + tickLength); } @@ -317,8 +401,10 @@ public class MetalSliderUI { // Note the incoming 'g' has a translation in place to get us to the // start of the tick rect already... - // TODO: get color from UIManager... - g.setColor(new Color(153, 153, 204)); + if (slider.isEnabled()) + g.setColor(MetalLookAndFeel.getPrimaryControlShadow()); + else + g.setColor(MetalLookAndFeel.getControlDisabled()); g.drawLine(TICK_BUFFER - 1, y, TICK_BUFFER - 1 + tickLength / 2, y); } @@ -334,8 +420,10 @@ public class MetalSliderUI { // Note the incoming 'g' has a translation in place to get us to the // start of the tick rect already... - // TODO: get color from UIManager... - g.setColor(new Color(153, 153, 204)); + if (slider.isEnabled()) + g.setColor(MetalLookAndFeel.getPrimaryControlShadow()); + else + g.setColor(MetalLookAndFeel.getControlDisabled()); g.drawLine(TICK_BUFFER - 1, y, TICK_BUFFER - 1 + tickLength, y); } |