/** Creates a control panel for adjusting the number of histogram classes */
private void createNumClassesPanel() {
int numClasses = getModel().getSettings().getNumClasses();
fldNumClasses = (new InputPanelW(null, app, -1, false)).getTextComponent();
fldNumClasses.setEditable(false);
fldNumClasses.setOpaque(true);
fldNumClasses.setColumns(2);
fldNumClasses.setVisible(false);
sliderNumClasses = new Slider(3, 20);
sliderNumClasses.setValue(numClasses);
sliderNumClasses.setMajorTickSpacing(1);
sliderNumClasses.addChangeHandler(
new ChangeHandler() {
public void onChange(ChangeEvent event) {
getModel().getSettings().setNumClasses(sliderNumClasses.getValue());
fldNumClasses.setText(("" + getModel().getSettings().getNumClasses()));
getModel().updatePlot(true);
}
});
numClassesPanel = new FlowPanel();
numClassesPanel.add(sliderNumClasses);
numClassesPanel.add(fldNumClasses);
}
private void initSlider() {
mySlider = new Slider(0, 100);
mySlider.setMajorTickSpacing(25);
mySlider.setMinorTickSpacing(5);
mySlider.addChangeHandler(this);
Slider.addInputHandler(mySlider.getElement(), this);
sliderLabel = new Label();
FlowPanel panel = new FlowPanel();
panel.add(mySlider);
panel.add(sliderLabel);
sliderLabel.addStyleName("popupSliderLabel");
panel.addStyleName("panelRow");
myPopup.getPanel().add(panel);
}
/** @param value {@code int} */
public void setSliderValue(int value) {
if (mySlider == null) {
return;
}
mySlider.setValue(value);
sliderLabel.setText(value + "");
updateGUI();
}
public void showSlider(boolean show) {
if (show) {
getMySlider().setVisible(show);
sliderLabel.setVisible(show);
} else if (mySlider != null) {
mySlider.setVisible(false);
sliderLabel.setVisible(false);
}
}
public void onSliderInput() {
if (mySlider != null) {
setSliderValue(mySlider.getValue());
}
if (changeEventHandler != null) {
changeEventHandler.fireActionPerformed(this);
} else {
((EuclidianStyleBarW) app.getActiveEuclidianView().getStyleBar()).fireActionPerformed(this);
}
fireActionPerformed();
updateGUI();
}
/** @return {@code int} or {@code -1} if the {@link Slider slider} is null */
public int getSliderValue() {
return mySlider == null ? -1 : mySlider.getValue();
}