META-INF.modules.java.desktop.classes.javax.swing.plaf.synth.SynthToolTipUI Maven / Gradle / Ivy
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* accompanied this code).
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package javax.swing.plaf.synth;
import java.awt.*;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.*;
import javax.swing.plaf.basic.BasicHTML;
import javax.swing.plaf.basic.BasicToolTipUI;
import javax.swing.plaf.ComponentUI;
import javax.swing.text.View;
import sun.swing.SwingUtilities2;
/**
* Provides the Synth L&F UI delegate for
* {@link javax.swing.JToolTip}.
*
* @author Joshua Outwater
* @since 1.7
*/
public class SynthToolTipUI extends BasicToolTipUI
implements PropertyChangeListener, SynthUI {
private SynthStyle style;
/**
* Creates a new UI object for the given component.
*
* @param c component to create UI object for
* @return the UI object
*/
public static ComponentUI createUI(JComponent c) {
return new SynthToolTipUI();
}
/**
* {@inheritDoc}
*/
@Override
protected void installDefaults(JComponent c) {
updateStyle(c);
}
private void updateStyle(JComponent c) {
SynthContext context = getContext(c, ENABLED);
style = SynthLookAndFeel.updateStyle(context, this);
}
/**
* {@inheritDoc}
*/
@Override
protected void uninstallDefaults(JComponent c) {
SynthContext context = getContext(c, ENABLED);
style.uninstallDefaults(context);
style = null;
}
/**
* {@inheritDoc}
*/
@Override
protected void installListeners(JComponent c) {
c.addPropertyChangeListener(this);
}
/**
* {@inheritDoc}
*/
@Override
protected void uninstallListeners(JComponent c) {
c.removePropertyChangeListener(this);
}
/**
* {@inheritDoc}
*/
@Override
public SynthContext getContext(JComponent c) {
return getContext(c, getComponentState(c));
}
private SynthContext getContext(JComponent c, int state) {
return SynthContext.getContext(c, style, state);
}
private int getComponentState(JComponent c) {
JComponent comp = ((JToolTip)c).getComponent();
if (comp != null && !comp.isEnabled()) {
return DISABLED;
}
return SynthLookAndFeel.getComponentState(c);
}
/**
* Notifies this UI delegate to repaint the specified component.
* This method paints the component background, then calls
* the {@link #paint(SynthContext,Graphics)} method.
*
* In general, this method does not need to be overridden by subclasses.
* All Look and Feel rendering code should reside in the {@code paint} method.
*
* @param g the {@code Graphics} object used for painting
* @param c the component being painted
* @see #paint(SynthContext,Graphics)
*/
@Override
public void update(Graphics g, JComponent c) {
SynthContext context = getContext(c);
SynthLookAndFeel.update(context, g);
context.getPainter().paintToolTipBackground(context,
g, 0, 0, c.getWidth(), c.getHeight());
paint(context, g);
}
/**
* {@inheritDoc}
*/
@Override
public void paintBorder(SynthContext context, Graphics g, int x,
int y, int w, int h) {
context.getPainter().paintToolTipBorder(context, g, x, y, w, h);
}
/**
* Paints the specified component according to the Look and Feel.
*
This method is not used by Synth Look and Feel.
* Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
*
* @param g the {@code Graphics} object used for painting
* @param c the component being painted
* @see #paint(SynthContext,Graphics)
*/
@Override
public void paint(Graphics g, JComponent c) {
SynthContext context = getContext(c);
paint(context, g);
}
/**
* Paints the specified component.
*
* @param context context for the component being painted
* @param g the {@code Graphics} object used for painting
* @see #update(Graphics,JComponent)
*/
protected void paint(SynthContext context, Graphics g) {
JToolTip tip = (JToolTip)context.getComponent();
Insets insets = tip.getInsets();
View v = (View)tip.getClientProperty(BasicHTML.propertyKey);
if (v != null) {
Rectangle paintTextR = new Rectangle(insets.left, insets.top,
tip.getWidth() - (insets.left + insets.right),
tip.getHeight() - (insets.top + insets.bottom));
v.paint(g, paintTextR);
} else {
g.setColor(context.getStyle().getColor(context,
ColorType.TEXT_FOREGROUND));
g.setFont(style.getFont(context));
context.getStyle().getGraphicsUtils(context).paintText(
context, g, tip.getTipText(), insets.left, insets.top, -1);
}
}
/**
* {@inheritDoc}
*/
@Override
public Dimension getPreferredSize(JComponent c) {
SynthContext context = getContext(c);
Insets insets = c.getInsets();
Dimension prefSize = new Dimension(insets.left+insets.right,
insets.top+insets.bottom);
String text = ((JToolTip)c).getTipText();
if (text != null) {
View v = (c != null) ? (View) c.getClientProperty("html") : null;
if (v != null) {
prefSize.width += (int) v.getPreferredSpan(View.X_AXIS);
prefSize.height += (int) v.getPreferredSpan(View.Y_AXIS);
} else {
Font font = context.getStyle().getFont(context);
FontMetrics fm = c.getFontMetrics(font);
prefSize.width += context.getStyle().getGraphicsUtils(context).
computeStringWidth(context, font, fm, text);
prefSize.height += fm.getHeight();
}
}
return prefSize;
}
/**
* {@inheritDoc}
*/
@Override
public void propertyChange(PropertyChangeEvent e) {
if (SynthLookAndFeel.shouldUpdateStyle(e)) {
updateStyle((JToolTip)e.getSource());
}
String name = e.getPropertyName();
if (name.equals("tiptext") || SwingUtilities2.isScaleChanged(e)
|| "foreground".equals(name) || "font".equals(name)) {
// remove the old html view client property if one
// existed, and install a new one if the text installed
// into the JLabel is html source.
JToolTip tip = ((JToolTip) e.getSource());
String text = tip.getTipText();
BasicHTML.updateRenderer(tip, text);
}
}
}