freeseawind.lf.basic.text.LuckPasswordFieldUI Maven / Gradle / Ivy

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package freeseawind.lf.basic.text;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.RectangularShape;
import java.awt.geom.RoundRectangle2D;

import javax.swing.JComponent;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicPasswordFieldUI;

import freeseawind.lf.border.LuckBorderField;
import freeseawind.lf.border.LuckShapeBorder;
import freeseawind.lf.event.LuckBorderFocusHandle;

/**
 * 
 * PasswordFieldUI实现类，设置组件为不完全透明，使用圆角焦点边框作为默认边框。
 * 
 *
 * 
 * PasswordFieldUI implementation class, setting the component is not completely
 * transparent, rounded corners as the default focus frame border.
 * 
 *
 * @author freeseawind@github
 * @version 1.0
 *
 */
public class LuckPasswordFieldUI extends BasicPasswordFieldUI
        implements LuckBorderField
{
    protected LuckBorderFocusHandle handle;
    private RectangularShape borderShape;
    private boolean isFocusGained;

    public static ComponentUI createUI(JComponent c)
    {
        return new LuckPasswordFieldUI();
    }

    public void installUI(JComponent c)
    {
        super.installUI(c);

        if(c.getBorder() instanceof LuckShapeBorder)
        {
            installFocusListener(c);
        }
    }

    @Override
    public void uninstallUI(JComponent c)
    {
        super.uninstallUI(c);

        uninstallFocusListener(c);
    }
    
    protected void paintBackground(Graphics g)
    {
        JComponent editor = getComponent(); 
        ((Graphics2D)g).setColor(editor.getBackground());
        borderShape.setFrame(0, 0, editor.getWidth() - 1, editor.getHeight() - 1);
        ((Graphics2D)g).fill(borderShape);
    }
    
    /**
     *      * 初始化边框焦点监听器
     *
     * Initializes the border focus listener
     *      *
     * @param c
     */
    protected void installFocusListener(JComponent c)
    {
        handle = createFocusHandle();

        borderShape = new RoundRectangle2D.Float(0, 0, 0, 0, 8, 8);

        c.addMouseListener(handle);

        c.addFocusListener(handle);
    }
    
    /**
     * remove focus Listener
     *
     * @param c
     */
    protected void uninstallFocusListener(JComponent c)
    {
        if(handle != null)
        {
            c.removeMouseListener(handle);

            c.removeFocusListener(handle);

            handle = null;
        }
        
        borderShape = null;
    }

    /**
     * 创建边框焦点监听器。
     *
     * Create the border focus listener.
     *
     * @return LuckBorderFocusHandle
     */
    protected LuckBorderFocusHandle createFocusHandle()
    {
        return new LuckFocusHandler();
    }

    public void setFocusGained(boolean isFoucusGaind)
    {
        this.isFocusGained = isFoucusGaind;
    }

    public boolean isFocusGaind()
    {
        return isFocusGained;
    }

    public RectangularShape getBorderShape()
    {
        return borderShape;
    }

    public void setBorderShape(RectangularShape shape)
    {
        this.borderShape = shape;
    }

    public class LuckFocusHandler extends LuckBorderFocusHandle
    {
        @Override
        public JComponent getComponent()
        {
            return LuckPasswordFieldUI.this.getComponent();
        }

        @Override
        public LuckBorderField getBorderField()
        {
            return LuckPasswordFieldUI.this;
        }
    }
}