Symantec Visual Cafe for Java 2.5/symantec-visual-cafe-2.5-database-dev-edition.iso/VCafe/prosrc.bin/ImageViewerBeanInfo.java

Java Source | 1998-03-18 | 4.8 KB | 169 lines

/*
 * @(#ImageViewerBeanInfo.java
 *
 * Copyright (c) 1997 Symantec Corporation. All Rights Reserved.
 *
 */

package symantec.itools.db.awt;

import java.beans.*;
import symantec.itools.beans.*;
import java.util.ResourceBundle;


/**
 * BeanInfo for the ImageViewer component.
 *
 */

public class ImageViewerBeanInfo extends SimpleBeanInfo {

    /**
     * Constructs a ImageViewerBeanInfo object.
     */
    public ImageViewerBeanInfo() {
    }

    /**
     * Gets BeanInfo for the superclass of this bean.
     * @return BeanInfo[] containing this bean's superclass BeanInfo
     */

    public BeanInfo[] getAdditionalBeanInfo() {
        try {
            java.util.Vector v = new java.util.Vector();
            BeanInfo[] rv;
            BeanInfo b;
            Class c = beanClass.getSuperclass();

            while (c.isAssignableFrom(Object.class) != true) {
                b = Introspector.getBeanInfo(c);
                v.addElement(b);
                c = c.getSuperclass();
            }
            rv = new BeanInfo[v.size()];
            v.copyInto(rv);

            return rv;
        }
        catch (IntrospectionException e) { throw new Error(e.toString());}
    }

    /**
     * Gets the SymantecBeanDescriptor for this bean.
     * @return an object of type SymantecBeanDescriptor
     * @see symantec.itools.beans.SymantecBeanDescriptor
     */
    public BeanDescriptor getBeanDescriptor() {
        SymantecBeanDescriptor bd = new SymantecBeanDescriptor(beanClass);
        bd.setFolder("dbAWARE");
        bd.setToolbar("dbAWARE");
        // bd.setValue("VPO_Object", new Boolean(true));
        bd.setWinHelp("0x123CA");

        return (BeanDescriptor) bd;
    }

    /**
     * Gets an image that may be used to visually represent this bean
     * (in the toolbar, on a form, etc).
     * @param iconKind the type of icon desired, one of: BeanInfo.ICON_MONO_16x16,
     * BeanInfo.ICON_COLOR_16x16, BeanInfo.ICON_MONO_32x32, or BeanInfo.ICON_COLOR_32x32.
     * @return an image for this bean, always color even if requested monochrome
     * @see BeanInfo#ICON_MONO_16x16
     * @see BeanInfo#ICON_COLOR_16x16
     * @see BeanInfo#ICON_MONO_32x32
     * @see BeanInfo#ICON_COLOR_32x32
     */
    public java.awt.Image getIcon(int iconKind) {
        if (iconKind == BeanInfo.ICON_MONO_16x16 ||
            iconKind == BeanInfo.ICON_COLOR_16x16) {
            java.awt.Image img = loadImage("ImageViewerC16.gif");
            return img;
        }

        if (iconKind == BeanInfo.ICON_MONO_32x32 ||
            iconKind == BeanInfo.ICON_COLOR_32x32) {
            java.awt.Image img = loadImage("ImageViewerC32.gif");
            return img;
        }

        return null;
    }

    /**
     * Gets an array of descriptions of the methods used for "connections" by
     * Visual CafΘ's Interaction Wizard.
     * Included in each method description is a CONNECTIONS ConnectionDescriptor.
     * @return method descriptions for this bean
     * @see symantec.itools.beans.ConnectionDescriptor#CONNECTIONS
     */
    public MethodDescriptor[] getMethodDescriptors() {
        Class[] args;
        ConnectionDescriptor connection;
        java.util.Vector connections;
        java.util.Vector md = new java.util.Vector();

        try{
            args = new Class[1];
            args[0] = java.lang.String.class ;
            MethodDescriptor fetchImage = new MethodDescriptor(beanClass.getMethod("fetchImage", args));

            connections = new java.util.Vector();

            {
                connection = new ConnectionDescriptor();
                connection.setForm("input");
                connection.setType("String");
                StringBuffer  code = new StringBuffer();
                code.append("%name%.fetchImage(%arg%);\n");
                connection.setExpr(code.toString());
                connection.setShortDescription("Fetch an image from");
                connections.addElement(connection);
            }

            fetchImage.setValue(ConnectionDescriptor.CONNECTIONS, connections);
            md.addElement(fetchImage);
        } catch (Exception e) { throw new Error("setFileName:: " + e.toString()); }

        MethodDescriptor[] rv = new MethodDescriptor[md.size()];
        md.copyInto(rv);

        return rv;
    }

    /**
     * Gets an array of descriptions of this bean's properties.
     * @return property descriptions for this bean
     */
    public PropertyDescriptor[] getPropertyDescriptors() {
        ResourceBundle prop = ResourceBundle.getBundle("symantec.itools.db.resources.PropBundle");

        try{

        PropertyDescriptor dataBinding = new PropertyDescriptor("dataBinding", beanClass);
        dataBinding.setBound(false);
        dataBinding.setConstrained(false);
        dataBinding.setDisplayName(prop.getString("dataBinding"));
        dataBinding.setPropertyEditorClass(symantec.itools.db.beans.binding.NameEditor.class);

        PropertyDescriptor[] rv = {
            dataBinding,
            };

        return rv;
        } catch (IntrospectionException e) { throw new Error(e.toString()); }
    }

    /**
     * Returns the index of the property expected to be changed most often by the designer.
     */
    public int getDefaultPropertyIndex() {
        return 0;    //  the index for our default property is always 0
    }

    private final static Class beanClass = ImageViewer.class;

}    //  end of class ImageViewerBeanInfo|