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JIDE Common Layer (Professional Swing Components)
/*
* @(#)ShortcutField.java 7/9/2002
*
* Copyright 2002 - 2002 JIDE Software Inc. All rights reserved.
*/
package com.jidesoft.swing;
import com.jidesoft.plaf.UIDefaultsLookup;
import com.jidesoft.utils.SystemInfo;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import java.awt.*;
import java.awt.event.*;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* LabeledTextField is a combo component which includes text field and an optional JLabel in the front and
* another optional AbstractButton at the end.
*/
public class LabeledTextField extends JPanel {
protected JTextField _textField;
protected JLabel _label;
protected AbstractButton _button;
protected String _labelText;
protected Icon _icon;
protected String _hintText;
protected boolean _showHintTextWhenFocused = false;
protected JLabel _hintLabel;
protected PopupMenuCustomizer _customizer;
protected KeyStroke _contextMenuKeyStroke;
private DefaultOverlayable _hintOverlayable;
/**
* The PopupMenuCustomizer for the context menu when clicking on the label/icon before the text field.
*/
public static interface PopupMenuCustomizer {
void customize(LabeledTextField field, JPopupMenu menu);
}
public LabeledTextField() {
this(null, null);
}
public LabeledTextField(Icon icon) {
this(icon, null);
}
public LabeledTextField(Icon icon, String labelText) {
super();
_icon = icon;
_labelText = labelText;
initComponent();
}
protected void initComponent() {
_label = createLabel();
if (_label != null) {
_label.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mousePressed(MouseEvent e) {
showContextMenu();
}
@Override
public void mouseReleased(MouseEvent e) {
}
});
}
_button = createButton();
_textField = createTextField();
initLayout(_label, _textField, _button);
setContextMenuKeyStroke(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, KeyEvent.ALT_DOWN_MASK));
registerContextMenuKeyStroke(getContextMenuKeyStroke());
updateUI();
}
private void registerContextMenuKeyStroke(KeyStroke keyStroke) {
if (keyStroke != null) {
registerKeyboardAction(new ActionListener() {
public void actionPerformed(ActionEvent e) {
showContextMenu();
}
}, keyStroke, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
}
}
private void unregisterContextMenuKeyStroke(KeyStroke keyStroke) {
if (keyStroke != null)
unregisterKeyboardAction(keyStroke);
}
/**
* Shows the context menu.
*/
protected void showContextMenu() {
if (isEnabled()) {
JPopupMenu menu = createContextMenu();
customizePopupMenu(menu);
PopupMenuCustomizer customizer = getPopupMenuCustomizer();
if (customizer != null && menu != null) {
customizer.customize(this, menu);
}
if (menu != null && menu.getComponentCount() > 0) {
Point location = calculateContextMenuLocation();
JideSwingUtilities.showPopupMenu(menu, this, location.x, location.y);
}
}
}
/**
* Calculates the locatioin of the context menu.
*
* @return the upper-left corner location.
* @since 3.4.2
*/
protected Point calculateContextMenuLocation() {
Point location = _label.getLocation();
return new Point(location.x + (_label.getIcon() == null ? 1 : _label.getIcon().getIconWidth() / 2), location.y + _label.getHeight() + 1);
}
/**
* Customizes the popup menu.
*
* @param menu the menu to customize
* @since 3.4.1
*/
protected void customizePopupMenu(JPopupMenu menu) {
}
/**
* Setup the layout of the components. By default, we used a border layout with label first, field in the center and
* button last.
*
* @param label the label
* @param field the text field.
* @param button the button
*/
protected void initLayout(final JLabel label, final JTextField field, final AbstractButton button) {
setLayout(new BorderLayout(3, 3));
if (label != null) {
add(label, BorderLayout.BEFORE_LINE_BEGINS);
}
_hintLabel = new JLabel(getHintText());
_hintLabel.setOpaque(false);
Color foreground = UIDefaultsLookup.getColor("Label.disabledForeground");
if (foreground == null) {
foreground = Color.GRAY;
}
_hintLabel.setForeground(foreground);
_hintOverlayable = new DefaultOverlayable(field, _hintLabel, DefaultOverlayable.LEADING);
_hintOverlayable.setOpaque(false);
field.addFocusListener(new FocusListener() {
public void focusLost(FocusEvent e) {
adjustOverlay(field, _hintOverlayable);
}
public void focusGained(FocusEvent e) {
adjustOverlay(field, _hintOverlayable);
}
});
field.getDocument().addDocumentListener(new DocumentListener() {
public void insertUpdate(DocumentEvent e) {
adjustOverlay(field, _hintOverlayable);
}
public void removeUpdate(DocumentEvent e) {
adjustOverlay(field, _hintOverlayable);
}
public void changedUpdate(DocumentEvent e) {
adjustOverlay(field, _hintOverlayable);
}
});
add(_hintOverlayable);
if (button != null) {
add(button, BorderLayout.AFTER_LINE_ENDS);
}
}
/**
* Checks if the hint text will still be shown when the text field has focus. By default, the hint text is only
* shown when the text field doesn't have focus.
*
* @return true or false.
* @since 3.3.6
*/
public boolean isShowHintTextWhenFocused() {
return _showHintTextWhenFocused;
}
/**
* Sets the flag if the hint text will still be shown when the text field has focus. By default, the hint text is
* only shown when the text field doesn't have focus. If you set it to true, the hint text will always be shown
* regardless if the text field has focus.
*
* @param showHintTextWhenFocused true or false.
* @since 3.3.6
*/
public void setShowHintTextWhenFocused(boolean showHintTextWhenFocused) {
_showHintTextWhenFocused = showHintTextWhenFocused;
if (_textField != null && _hintOverlayable != null) {
adjustOverlay(_textField, _hintOverlayable);
}
}
private void adjustOverlay(JTextField field, Overlayable overlayable) {
if (field.hasFocus() && !isShowHintTextWhenFocused()) {
overlayable.setOverlayVisible(false);
}
else {
String text = field.getText();
if (text != null && text.length() != 0) {
overlayable.setOverlayVisible(false);
}
else {
overlayable.setOverlayVisible(true);
}
}
}
/**
* Creates a text field. By default it will return a JTextField with opaque set to false. Subclass can override this
* method to create their own text field such as JFormattedTextField.
*
* @return a text field.
*/
protected JTextField createTextField() {
JTextField textField = new OverlayTextField();
SelectAllUtils.install(textField);
JideSwingUtilities.setComponentTransparent(textField);
textField.setColumns(20);
return textField;
}
/**
* Creates a context menu. The context menu will be shown when user clicks on the label.
*
* @return a context menu.
*/
protected JidePopupMenu createContextMenu() {
return new JidePopupMenu();
}
@Override
public void updateUI() {
super.updateUI();
Border textFieldBorder = UIDefaultsLookup.getBorder("TextField.border");
if (textFieldBorder != null) {
boolean big = textFieldBorder.getBorderInsets(this).top >= 2;
if (big)
setBorder(textFieldBorder);
else
setBorder(BorderFactory.createCompoundBorder(textFieldBorder, BorderFactory.createEmptyBorder(2, 2, 2, 2)));
}
else {
setBorder(BorderFactory.createCompoundBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(2, 2, 2, 2)));
}
if (isEnabled()) {
LookAndFeel.installColors(this, "TextField.background", "TextField.foreground");
}
else {
LookAndFeel.installColors(this, "TextField.disableBackground", "TextField.inactiveForeground");
}
if (textFieldBorder != null && _textField != null) {
_textField.setBorder(BorderFactory.createEmptyBorder());
}
setEnabled(isEnabled());
}
/**
* Creates the button that appears after the text field. By default it returns null so there is no button. Subclass
* can override it to create their own button. A typical usage of this is to create a browse button to browse a file
* or directory.
*
* @return the button.
*/
protected AbstractButton createButton() {
return null;
}
/**
* Creates the label that appears before the text field. By default, it only has a search icon.
*
* @return the label.
*/
protected JLabel createLabel() {
JLabel label = new JLabel(_icon);
label.setText(_labelText);
return label;
}
/**
* Sets the text that appears before the text field.
*
* @param text the text that appears before the text field.
*/
public void setLabelText(String text) {
_labelText = text;
if (_label != null) {
_label.setText(text);
}
}
/**
* Gets the text that appears before the text field.
*
* @return the text that appears before the text field. By default it's null, meaning no text.
*/
public String getLabelText() {
if (_label != null) {
return _label.getText();
}
else {
return _labelText;
}
}
/**
* Sets the icon that appears before the text field.
*
* @param icon the icon that appears before the text field.
*/
public void setIcon(Icon icon) {
_icon = icon;
if (_label != null) {
_label.setIcon(icon);
}
}
/**
* Gets the icon that appears before the text field.
*
* @return the icon that appears before the text field.
*/
public Icon getIcon() {
if (_label != null) {
return _label.getIcon();
}
else {
return _icon;
}
}
/**
* Gets the JLabel that appears before text field.
*
* @return the JLabel that appears before text field.
*/
public JLabel getLabel() {
return _label;
}
/**
* Gets the AbstractButton that appears after text field.
*
* @return the AbstractButton that appears after text field.
*/
public AbstractButton getButton() {
return _button;
}
/**
* Sets the number of columns in this TextField, and then invalidate the layout.
*
* @param columns the number of columns for this text field.
*/
public void setColumns(int columns) {
if (getTextField() != null) {
getTextField().setColumns(columns);
}
}
/**
* Sets the text in this TextField.
*
* @param text the new text in this TextField.
*/
public void setText(String text) {
if (getTextField() != null) {
getTextField().setText(text);
}
}
/**
* Gets the text in this TextField.
*
* @return the text in this TextField.
*/
public String getText() {
if (getTextField() != null) {
return getTextField().getText();
}
else {
return null;
}
}
/**
* Gets the actual text field.
*
* @return the actual text field.
*/
public JTextField getTextField() {
return _textField;
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
if (enabled) {
if (getTextField() != null) {
getTextField().setEnabled(true);
}
if (getLabel() != null) {
getLabel().setEnabled(true);
}
if (getButton() != null) {
getButton().setEnabled(true);
}
}
else {
if (getTextField() != null) {
getTextField().setEnabled(false);
}
if (getLabel() != null) {
getLabel().setEnabled(false);
}
if (getButton() != null) {
getButton().setEnabled(false);
}
setBackground(UIDefaultsLookup.getColor("control"));
}
if (_hintLabel != null) {
boolean textEmpty = true;
if (getTextField() != null) {
textEmpty = getTextField().getText() == null || getTextField().getText().length() == 0;
}
_hintLabel.setVisible(isEnabled() && textEmpty);
}
JTextField textField = getTextField();
if (textField != null) {
// this probably won't work with L&F which ignore the background property like GTK L&F
setBackground(textField.getBackground());
setForeground(textField.getForeground());
}
else {
if (enabled) {
setBackground(UIDefaultsLookup.getColor("TextField.background"));
setForeground(UIDefaultsLookup.getColor("TextField.foreground"));
}
else {
Color background = UIDefaultsLookup.getColor("TextField.disabledBackground");
if (background == null) {
// TextField.disabledBackground not defined by metal
background = UIDefaultsLookup.getColor("TextField.inactiveBackground");
// Nimbus uses TextField[Disabled].backgroundPainter (not a Color)
// but don't know how to set that for a single panel instance, maybe with a ClientProperty?
}
setBackground(background);
setForeground(UIDefaultsLookup.getColor("TextField.inactiveForeground"));
}
}
}
public int getBaseline(int width, int height) {
if (SystemInfo.isJdk6Above()) {
try {
Method method = Component.class.getMethod("getBaseline", new Class[]{int.class, int.class});
Object value = method.invoke(_textField, width, height);
if (value instanceof Integer) {
return (Integer) value;
}
}
catch (NoSuchMethodException e) {
// ignore
}
catch (IllegalAccessException e) {
// ignore
}
catch (InvocationTargetException e) {
// ignore
}
}
return -1;
}
/**
* Gets the hint text when the field is empty and not focused.
*
* @return the hint text.
*/
public String getHintText() {
return _hintText;
}
/**
* Sets the hint text.
*
* @param hintText the new hint text.
*/
public void setHintText(String hintText) {
_hintText = hintText;
if (_hintLabel != null) {
_hintLabel.setText(_hintText);
}
}
/**
* Gets the PopupMenuCustomizer.
*
* @return the PopupMenuCustomizer.
*/
public PopupMenuCustomizer getPopupMenuCustomizer() {
return _customizer;
}
/**
* Sets the PopupMenuCustomizer. PopupMenuCustomizer can be used to do customize the popup menu for the
* LabeledTextField.
*
* PopupMenuCustomizer has a customize method. The popup menu of this menu will be passed in. You can
* add/remove/change the menu items in customize method. For example,
*
* field.setPopupMenuCustomzier(new LabeledTextField.PopupMenuCustomizer() {
* void customize(LabledTextField field, JPopupMenu menu) {
* menu.removeAll();
* menu.add(new JMenuItem("..."));
* menu.add(new JMenuItem("..."));
* }
* }
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