下面列出了javax.swing.JSlider#getValue ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private <X, Y> void viewAlgebraHelper(JComponent top, Algebra<Ty, En, Sym, Fk, Att, Gen, Sk, X, Y> algebra,
JPanel out, JCheckBox simp, JSlider sl, Map<Pair<Boolean, Integer>, JScrollPane> cache) {
boolean b = simp.isSelected();
int l = sl.getValue();
Pair<Boolean, Integer> p = new Pair<>(b, l);
JScrollPane jsp = cache.get(p);
if (jsp == null) {
jsp = makeList2(algebra, b, l);
cache.put(p, jsp);
}
out.removeAll();
out.add(jsp, BorderLayout.CENTER);
out.add(top, BorderLayout.SOUTH);
out.revalidate();
out.repaint();
}
public void stateChanged(ChangeEvent e) {
JSlider s1 = (JSlider) e.getSource();
String name = label.getText();
if(!"".equals(name)) {
name = name.substring(0, name.indexOf(":"));
}
if("分类数".equals(name)) {
clusternum = s1.getValue();
} else if("迭代次数".equals(name)) {
iternum = s1.getValue();
} else if("指数".equals(name)) {
exponent = s1.getValue();
} else if("程序执行速度".equals(name)) {
speed = s1.getValue();
} else {
JOptionPane.showMessageDialog(null, "参数有误", "提醒", JOptionPane.ERROR_MESSAGE);
}
label.setText(name+":"+s1.getValue());
}
/**
* Add a popover labeling a slider.
*
* @param suffix
* the text to append after the numeric value, such as "%" or
* " pixels".
*/
protected void addSliderPopover(JSlider slider, final String suffix) {
JPopover p = new JPopover<JToolTip>(slider, new JToolTip(), false) {
@Override
protected void doRefreshPopup() {
JSlider js = (JSlider) getOwner();
int v = js.getValue();
String newText;
if (v == 1 && suffix.startsWith(" ") && suffix.endsWith("s")) {
newText = v + suffix.substring(0, suffix.length() - 1);
} else {
newText = v + suffix;
}
getContents().setTipText(newText);
// this is only because we have the JToolTipDemo so
// colors might change:
getContents().updateUI();
getContents().setBorder(null);
}
};
p.setTarget(new SliderThumbPopupTarget(slider));
}
/**
* Listen for changes from the slider
*/
@Override
public void stateChanged(ChangeEvent e) {
JSlider source = (JSlider)e.getSource();
if (!source.getValueIsAdjusting()) {
if (source == freqSlider) {
int freq = (int)source.getValue();
Config.filterFrequency = freq;
Config.save();
} else {
int len = (int)source.getValue();
Config.filterLength = len;
Config.save();
}
}
}
/**
* @param g
* @param c
* @param width
* @param height
*/
private void paintValueTrack(Graphics2D g, JComponent c, int width, int height) {
JSlider slider = (JSlider) c;
int orientation = slider.getOrientation();
double trackLength = slider.getMaximum()-slider.getMinimum();
double percentFilled = (slider.getValue()-slider.getMinimum()) / trackLength;
if ( "LogarithmicJSlider".equals( c.getClass().getSimpleName() ) ) {
percentFilled = (Math.log((slider.getValue()))-Math.log(slider.getMinimum())) /
((double) Math.log(slider.getMaximum()) - (double) Math.log(slider.getMinimum()));
}
if (percentFilled > 0) {
Shape s = getValueShape(c, width, height, orientation, percentFilled);
g.setPaint(getValuePaint(s));
g.fill(s);
}
}
public void stateChanged(ChangeEvent e) {
JComponent component = (JComponent) e.getSource();
TestbedSetting setting = (TestbedSetting) component.getClientProperty(SETTING_TAG);
switch (setting.constraintType) {
case BOOLEAN:
JCheckBox box = (JCheckBox) e.getSource();
setting.enabled = box.isSelected();
break;
case RANGE:
JSlider slider = (JSlider) e.getSource();
setting.value = slider.getValue();
JLabel label = (JLabel) slider.getClientProperty(LABEL_TAG);
label.setText(setting.name + ": " + setting.value);
break;
}
model.getPanel().grabFocus();
}
public static JPanel createLabelField(String preText, String postText, JSlider s) {
JPanel p = new JPanel();
JSpinner spin = new JSpinner(new SpinnerNumberModel(s.getValue(), s.getMinimum(), s.getMaximum(), 1));
spin.addChangeListener(ce -> {s.setValue((Integer) spin.getValue());});
p.add(new JLabel(preText));
p.add(spin);
p.add(new JLabel(postText));
return p;
}
/**
* This makes some visual changes to the component and its children. Shortly
* after calling this method, the <code>restore()</code> method needs to be
* called.
*/
private static void prep(Component c) {
if (c instanceof JComponent) {
JComponent jc = (JComponent) c;
if (jc.isOpaque()) {
jc.setOpaque(false);
jc.putClientProperty(USED_TO_BE_OPAQUE, Boolean.TRUE);
}
Dimension preferredSize = c.getPreferredSize();
if (greaterThanOrEqualTo(jc.getSize(), preferredSize) == false) {
jc.putClientProperty(SIZE, c.getSize());
jc.setSize(preferredSize);
}
}
if (c instanceof JSlider) {
JSlider s = (JSlider) c;
ChangeListener[] listeners = s.getChangeListeners();
int mid = (s.getMinimum() + s.getMaximum()) / 2;
if (mid != s.getValue()) {
s.putClientProperty(CHANGE_LISTENERS, listeners);
for (int a = 0; a < listeners.length; a++) {
s.removeChangeListener(listeners[a]);
}
s.putClientProperty(SLIDER_VALUE, new Integer(s.getValue()));
s.setValue(mid);
}
}
if (c instanceof Container) {
Container c2 = (Container) c;
for (int a = 0; a < c2.getComponentCount(); a++) {
prep(c2.getComponent(a));
}
}
if (c.isValid() == false)
c.validate();
}
@Override
public void stateChanged(ChangeEvent e) {
JSlider source = (JSlider) e.getSource();
int value = source.getValue();
ClientSingletonRepository.getSound().changeVolume(Numeric.intToFloat(value, 100.0f));
WtWindowManager.getInstance().setProperty(VOLUME_PROPERTY + "master", Integer.toString(value));
}
@Override
public void stateChanged(ChangeEvent e) {
JSlider source = (JSlider) e.getSource();
int value = source.getValue();
group.changeVolume(Numeric.intToFloat(value, 100f));
WtWindowManager.getInstance().setProperty(VOLUME_PROPERTY + groupName, Integer.toString(value));
}
@Override
public void stateChanged(ChangeEvent e) {
JSlider source = (JSlider) e.getSource();
if (!source.getValueIsAdjusting()) {
int value = source.getValue();
if (FRACTION_LAYOUT_VIEW_STYLE.equals(FractionLayoutViewStylesEnum.SESSION)) {
sessionModelWidth = value;
SAVED_SessionModelWidth = value;
} else {
dataModelWidth = value;
if (tripoliSession.getFractionationTechnique().compareTo(FractionationTechniquesEnum.INTERCEPT) == 0) {
if (FRACTION_LAYOUT_VIEW_STYLE.equals(FractionLayoutViewStylesEnum.OVERLAY)) {
SAVED_InterceptOverlayModelWidth = value;
} else {
SAVED_InterceptNormalModelWidth = value;
}
} else if (FRACTION_LAYOUT_VIEW_STYLE.equals(FractionLayoutViewStylesEnum.OVERLAY)) {
SAVED_DownholeOverlayModelWidth = value;
} else {
SAVED_DownholeNormalModelWidth = value;
}
}
if (!isZoomSlidersIndependent()) {
theOtherSlider.setValue(value);
}
((AbstractRawDataView) sampleSessionDataView).refreshPanel(true, false);
sessionAnalysisWorkflowManager.revalidateScrollPane();
}
}
/**
* An implemented <code>ChangeListener</code> for the zooming slider which performs the necessary actions.
*
* @param e a <code>ChangeEvent</code>
*/
public void stateChanged(ChangeEvent e) {
JSlider source = (JSlider)e.getSource();
if (!source.getValueIsAdjusting()) { // only perform action when mouse button is released!
int value = source.getValue();
double scale = Math.exp(value/50.0)/1000;
if(dontReRenderZoom_) dontReRenderZoom_ = false;
else{
Renderer.getInstance().setMapZoom(scale);
ReRenderManager.getInstance().doReRender();
}
}
}
@Override
public void paint(Graphics g0, JComponent c) {
Graphics2D g = (Graphics2D) g0.create();
JSlider slider = (JSlider) c;
if (slider.isOpaque()) {
g.setColor(slider.getBackground());
g.fillRect(0, 0, slider.getWidth(), slider.getHeight());
}
if (slider.isEnabled() == false) {
g.setComposite(
AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .5f));
}
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
// paint a circular shadow
/*
* g.translate(2,2); g.setColor(new Color(0,0,0,20)); g.fill(new
* Ellipse2D
* .Double(dial.getX()-2,dial.getY()-2,dial.getWidth()+4,dial.getHeight
* ()+4)); g.setColor(new Color(0,0,0,40)); g.fill(new
* Ellipse2D.Double(dial
* .getX()-1,dial.getY()-1,dial.getWidth()+2,dial.getHeight()+2));
* g.setColor(new Color(0,0,0,80)); g.fill(new
* Ellipse2D.Double(dial.getX
* ()-0,dial.getY()-0,dial.getWidth()+0,dial.getHeight()+0));
* g.translate(-2,-2);
*/
Data data = getData(slider);
if (slider.hasFocus()) {
PlafPaintUtils.paintFocus(g, data.dial, 3);
}
// g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
// RenderingHints.VALUE_ANTIALIAS_OFF);
Shape oldClip = g.getClip();
g.clip(data.dial);
int d = data.mousePressed ? -50 : 0;
for (int a = 0; a < 5; a++) {
float f = (a) / 4f;
g.setColor(tweenColor(new Color(150 + d, 150 + d, 150 + d),
new Color(212 + d, 212 + d, 212 + d), f));
g.translate(0, a);
g.fill(data.dial);
g.translate(0, -a);
}
g.setClip(oldClip);
g.setColor(border);
g.draw(data.dial);
float angle = (float) (slider.getValue() - slider.getMinimum())
/ (((float) (slider.getMaximum() - slider.getMinimum())));
angle = angle * (float) (2 * Math.PI);
float centerX = (float) data.dial.getCenterX();
float centerY = (float) data.dial.getCenterY();
float radius = (float) Math.min(centerX - data.dial.getX(),
centerY - data.dial.getY()) - 6;
float x = (float) (centerX + radius * Math.cos(angle));
float y = (float) (centerY + radius * Math.sin(angle));
Ellipse2D knob = new Ellipse2D.Float(x - 2, y - 2, 4, 4);
if (slider.hasFocus()) {
g.setColor(Color.gray);
g.fill(knob);
g.setColor(Color.darkGray);
g.draw(knob);
} else {
g.setColor(new Color(180, 180, 180));
g.fill(knob);
g.setColor(border);
g.draw(knob);
}
g.dispose();
}