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package org.eclipse.fx.ecp.ui.controls.numeric;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.control.Button;
import javafx.scene.control.Control;
import javafx.scene.control.IndexRange;
import javafx.scene.control.SkinBase;
import javafx.scene.control.TextField;
import javafx.scene.layout.HBox;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.command.SetCommand;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.fx.ecp.ui.ECPControl;
import org.eclipse.fx.ecp.ui.ECPUtil;
import org.eclipse.fx.ecp.ui.controls.AutoSelector;
import org.eclipse.fx.ecp.ui.controls.ECPControlBase;
public abstract class NumberSpinner extends ECPControlBase implements ECPControl {
private Button decreaseButton;
private TextField textField;
private Button increaseButton;
abstract class NumberSpinnerSkin<C extends Control, T extends Number> extends SkinBase<C> {
@SuppressWarnings("unchecked")
NumberSpinnerSkin(C control) {
super(control);
HBox hBox = new HBox();
getChildren().add(hBox);
hBox.setFillHeight(true);
decreaseButton = new Button();
hBox.getChildren().add(decreaseButton);
decreaseButton.getStyleClass().add("decrease-button");
decreaseButton.getStyleClass().add("left-pill");
ECPUtil.addMark(decreaseButton, "minus");
decreaseButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent arg0) {
T value = (T) modelElement.eGet(feature);
Command command = SetCommand.create(editingDomain, modelElement, feature, decrease(value));
if (command.canExecute())
editingDomain.getCommandStack().execute(command);
}
});
textField = new TextField() {
@Override
public void replaceText(int start, int end, String text) {
String currentText = getText();
StringBuffer sb = new StringBuffer(currentText);
sb.replace(start, end, text);
String tmp = sb.toString();
if (validate(tmp))
super.replaceText(start, end, text);
}
@Override
public void replaceSelection(String text) {
IndexRange selection = getSelection();
int start = selection.getStart();
int end = selection.getEnd();
StringBuffer sb = new StringBuffer(getText());
sb.replace(start, end, text);
String tmp = sb.toString();
if (validate(tmp))
super.replaceSelection(text);
}
};
hBox.getChildren().add(textField);
textField.getStyleClass().add("center-pill");
textField.focusedProperty().addListener(new AutoSelector(textField));
textField.focusedProperty().addListener(new ChangeListener<Boolean>() {
@Override
public void changed(ObservableValue<? extends Boolean> observableValue, Boolean oldFocused, Boolean newFocused) {
if (!newFocused) {
T oldValue = (T) modelElement.eGet(feature);
T newValue = parseValue(textField.getText());
// only commit if the value has changed
if (oldValue != newValue) {
Command command = SetCommand.create(editingDomain, modelElement, feature, newValue);
if (command.canExecute())
editingDomain.getCommandStack().execute(command);
}
}
}
});
increaseButton = new Button();
hBox.getChildren().add(increaseButton);
increaseButton.getStyleClass().add("increase-button");
increaseButton.getStyleClass().add("right-pill");
ECPUtil.addMark(increaseButton, "plus");
increaseButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent arg0) {
T value = (T) modelElement.eGet(feature);
Command command = SetCommand.create(editingDomain, modelElement, feature, increase(value));
if (command.canExecute())
editingDomain.getCommandStack().execute(command);
}
});
update();
}
abstract T decrease(T value);
abstract T increase(T value);
abstract T parseValue(String literal);
abstract boolean validate(String literal);
}
public NumberSpinner(IItemPropertyDescriptor propertyDescriptor, final EObject modelElement, final EditingDomain editingDomain) {
super(propertyDescriptor, modelElement, editingDomain);
getStyleClass().add("spinner");
}
@Override
protected String getUserAgentStylesheet() {
return getClass().getResource("../ECPControls.css").toExternalForm();
}
@Override
protected void update() {
Object value = modelElement.eGet(feature);
textField.setText(value != null ? value.toString() : "0");
}
@Override
public void dispose() {
modelElement.eAdapters().remove(modelElementAdapter);
}
}
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