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package javax.swing.plaf.synth;

import javax.swing.*;
import javax.swing.text.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicTextAreaUI;
import java.awt.*;
import java.awt.event.FocusListener;
import java.awt.event.FocusEvent;
import java.beans.PropertyChangeEvent;
import sun.swing.plaf.synth.SynthUI;

Provides the look and feel for a plain text editor in the Synth look and feel. In this implementation the default UI is extended to act as a simple view factory.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.

Author: Shannon Hickey
/** * Provides the look and feel for a plain text editor in the * Synth look and feel. In this implementation the default UI * is extended to act as a simple view factory. * <p> * <strong>Warning:</strong> * Serialized objects of this class will not be compatible with * future Swing releases. The current serialization support is * appropriate for short term storage or RMI between applications running * the same version of Swing. As of 1.4, support for long term storage * of all JavaBeans<sup><font size="-2">TM</font></sup> * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @author Shannon Hickey */
class SynthTextAreaUI extends BasicTextAreaUI implements SynthUI, FocusListener { private SynthStyle style;
Creates a UI for a JTextArea.
Params:
  • ta – a text area
Returns:the UI
/** * Creates a UI for a JTextArea. * * @param ta a text area * @return the UI */
public static ComponentUI createUI(JComponent ta) { return new SynthTextAreaUI(); } public void focusGained(FocusEvent e) { getComponent().repaint(); } public void focusLost(FocusEvent e) { getComponent().repaint(); } protected void installDefaults() { // Installs the text cursor on the component super.installDefaults(); updateStyle(getComponent()); getComponent().addFocusListener(this); } protected void uninstallDefaults() { SynthContext context = getContext(getComponent(), ENABLED); getComponent().putClientProperty("caretAspectRatio", null); getComponent().removeFocusListener(this); style.uninstallDefaults(context); context.dispose(); style = null; super.uninstallDefaults(); } public void installUI(JComponent c) { super.installUI(c); } private void updateStyle(JTextComponent comp) { SynthContext context = getContext(comp, ENABLED); SynthStyle oldStyle = style; style = SynthLookAndFeel.updateStyle(context, this); if (style != oldStyle) { SynthTextFieldUI.updateStyle(comp, context, getPropertyPrefix()); if (oldStyle != null) { uninstallKeyboardActions(); installKeyboardActions(); } } context.dispose(); } public SynthContext getContext(JComponent c) { return getContext(c, getComponentState(c)); } private SynthContext getContext(JComponent c, int state) { return SynthContext.getContext(SynthContext.class, c, SynthLookAndFeel.getRegion(c), style, state); } private int getComponentState(JComponent c) { return SynthLookAndFeel.getComponentState(c); } public void update(Graphics g, JComponent c) { SynthContext context = getContext(c); SynthLookAndFeel.update(context, g); context.getPainter().paintTextAreaBackground(context, g, 0, 0, c.getWidth(), c.getHeight()); paint(context, g); context.dispose(); } protected void paint(SynthContext context, Graphics g) { super.paint(g, getComponent()); } protected void paintBackground(Graphics g) { // Overriden to do nothing, all our painting is done from update/paint. } public void paintBorder(SynthContext context, Graphics g, int x, int y, int w, int h) { context.getPainter().paintTextAreaBorder(context, g, x, y, w, h); }
This method gets called when a bound property is changed on the associated JTextComponent. This is a hook which UI implementations may change to reflect how the UI displays bound properties of JTextComponent subclasses. This is implemented to rebuild the View when the WrapLine or the WrapStyleWord property changes.
Params:
  • evt – the property change event
/** * This method gets called when a bound property is changed * on the associated JTextComponent. This is a hook * which UI implementations may change to reflect how the * UI displays bound properties of JTextComponent subclasses. * This is implemented to rebuild the View when the * <em>WrapLine</em> or the <em>WrapStyleWord</em> property changes. * * @param evt the property change event */
protected void propertyChange(PropertyChangeEvent evt) { if (SynthLookAndFeel.shouldUpdateStyle(evt)) { updateStyle((JTextComponent)evt.getSource()); } super.propertyChange(evt); } }