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package javax.swing.plaf.synth;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicInternalFrameUI;
import java.beans.*;


Provides the Synth L&F UI delegate for JInternalFrame. 
Author:
David Kloba, Joshua Outwater, Rich Schiavi
Since:
1.7/**
 * Provides the Synth L&F UI delegate for
 * {@link javax.swing.JInternalFrame}.
 *
 * @author David Kloba
 * @author Joshua Outwater
 * @author Rich Schiavi
 * @since 1.7
 */
public class SynthInternalFrameUI extends BasicInternalFrameUI
                                  implements SynthUI, PropertyChangeListener {
    private SynthStyle style;

    
Creates a new UI object for the given component.
Params:
b – component to create UI object for
Returns:
the UI object/**
     * Creates a new UI object for the given component.
     *
     * @param b component to create UI object for
     * @return the UI object
     */
    public static ComponentUI createUI(JComponent b) {
        return new SynthInternalFrameUI((JInternalFrame)b);
    }

    
Constructs a SynthInternalFrameUI. 
Params:
b – an internal frame/**
     * Constructs a {@code SynthInternalFrameUI}.
     * @param b an internal frame
     */
    protected SynthInternalFrameUI(JInternalFrame b) {
        super(b);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void installDefaults() {
        frame.setLayout(internalFrameLayout = createLayoutManager());
        updateStyle(frame);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected void installListeners() {
        super.installListeners();
        frame.addPropertyChangeListener(this);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected void uninstallComponents() {
        if (frame.getComponentPopupMenu() instanceof UIResource) {
            frame.setComponentPopupMenu(null);
        }
        super.uninstallComponents();
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected void uninstallListeners() {
        frame.removePropertyChangeListener(this);
        super.uninstallListeners();
    }

    private void updateStyle(JComponent c) {
        SynthContext context = getContext(c, ENABLED);
        SynthStyle oldStyle = style;

        style = SynthLookAndFeel.updateStyle(context, this);
        if (style != oldStyle) {
            Icon frameIcon = frame.getFrameIcon();
            if (frameIcon == null || frameIcon instanceof UIResource) {
                frame.setFrameIcon(context.getStyle().getIcon(
                                   context, "InternalFrame.icon"));
            }
            if (oldStyle != null) {
                uninstallKeyboardActions();
                installKeyboardActions();
            }
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected void uninstallDefaults() {
        SynthContext context = getContext(frame, ENABLED);
        style.uninstallDefaults(context);
        style = null;
        if(frame.getLayout() == internalFrameLayout) {
            frame.setLayout(null);
        }

    }

    
{@inheritDoc}
/**
     * {@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) {
        return SynthLookAndFeel.getComponentState(c);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected JComponent createNorthPane(JInternalFrame w) {
        titlePane = new SynthInternalFrameTitlePane(w);
        titlePane.setName("InternalFrame.northPane");
        return titlePane;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected ComponentListener createComponentListener() {
        if (UIManager.getBoolean("InternalFrame.useTaskBar")) {
            return new ComponentHandler() {
                @Override public void componentResized(ComponentEvent e) {
                    if (frame != null && frame.isMaximum()) {
                        JDesktopPane desktop = (JDesktopPane)e.getSource();
                        for (Component comp : desktop.getComponents()) {
                            if (comp instanceof SynthDesktopPaneUI.TaskBar) {
                                frame.setBounds(0, 0,
                                                desktop.getWidth(),
                                                desktop.getHeight() - comp.getHeight());
                                frame.revalidate();
                                break;
                            }
                        }
                    }

                    // Update the new parent bounds for next resize, but don't
                    // let the super method touch this frame
                    JInternalFrame f = frame;
                    frame = null;
                    super.componentResized(e);
                    frame = f;
                }
            };
        } else {
            return super.createComponentListener();
        }
    }

    
Notifies this UI delegate to repaint the specified component. This method paints the component background, then calls the 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 paint method. 
Params:
g – the Graphics object used for painting
c – the component being painted
See Also:
paint(SynthContext, Graphics)/**
     * Notifies this UI delegate to repaint the specified component.
     * This method paints the component background, then calls
     * the {@link #paint(SynthContext,Graphics)} method.
     *
     * <p>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().paintInternalFrameBackground(context,
                          g, 0, 0, c.getWidth(), c.getHeight());
        paint(context, g);
    }

    
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 paint(SynthContext, Graphics) method. 
Params:
g – the Graphics object used for painting
c – the component being painted
See Also:
paint(SynthContext, Graphics)/**
     * Paints the specified component according to the Look and Feel.
     * <p>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. This implementation does nothing.
Params:
context – context for the component being painted
g – the Graphics object used for painting
See Also:
update(Graphics, JComponent)/**
     * Paints the specified component. This implementation does nothing.
     *
     * @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) {
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void paintBorder(SynthContext context, Graphics g, int x,
                            int y, int w, int h) {
        context.getPainter().paintInternalFrameBorder(context,
                                                            g, x, y, w, h);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void propertyChange(PropertyChangeEvent evt) {
        SynthStyle oldStyle = style;
        JInternalFrame f = (JInternalFrame)evt.getSource();
        String prop = evt.getPropertyName();

        if (SynthLookAndFeel.shouldUpdateStyle(evt)) {
            updateStyle(f);
        }

        if (style == oldStyle &&
            (prop == JInternalFrame.IS_MAXIMUM_PROPERTY ||
             prop == JInternalFrame.IS_SELECTED_PROPERTY)) {
            // Border (and other defaults) may need to change
            SynthContext context = getContext(f, ENABLED);
            style.uninstallDefaults(context);
            style.installDefaults(context, this);
        }
    }
}