propertybeaneditor.java

来自「openmap java写的开源数字地图程序. 用applet实现,可以像g」· Java 代码 · 共 69 行

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 * 
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 *  
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package com.bbn.openmap.tools.beanbox;

import java.awt.*;
import java.beans.*;

/** Custom property editor for a bean property that is itself a bean. */

public class PropertyBeanEditor extends PropertyEditorSupport {
    private GenericPropertySheet propSheet;

    /**
     * returns true;
     */
    public boolean isPaintable() {
        return true;
    }

    /**
     * represents the face of the custom property editor as a
     * rectangular box containing the text "Click to Edit".
     */
    public void paintValue(Graphics g, Rectangle box) {
        Color oldColor = g.getColor();
        Font oldFont = g.getFont();
        g.setColor(Color.blue);
        g.setFont(new Font(oldFont.getFontName(), Font.BOLD, oldFont.getSize()));
        g.drawRect(box.x - 1, box.y + 1, box.width - 2, box.height - 2);
        g.setColor(Color.white);
        g.drawString("Click to Edit", box.x + 10, box.y + box.height / 2 + 4);
        g.setFont(oldFont);
        g.setColor(oldColor);
    }

    /**
     * returns true.
     */
    public boolean supportsCustomEditor() {
        return true;
    }

    /**
     * returns an instance of the
     * {@link com.bbn.openmap.tools.beanbox.GenericPropertySheet}
     * which serves as the custom editor component for the bean
     * property associated with this editor.
     */
    public Component getCustomEditor() {
        if (propSheet == null)
            propSheet = new GenericPropertySheet(getValue(), 575, 20, this, null);
        return propSheet;
    }
};