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Object Automation Web library
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/*  Copyright 1999-2015 Vince Via [email protected]
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
*/
package com.viaoa.web;

import com.viaoa.hub.*;
import com.viaoa.object.OAObject;
import com.viaoa.util.*;

/**
 * Used to add a column to a OATable.
 * @author vvia
 *
 */
public class OATableColumn implements java.io.Serializable {
    private static final long serialVersionUID = 1L;
    
    OATable table;
    protected String[] propertyPaths;
    protected boolean bPassword;
    protected String heading;
    protected int columns;
    protected String format;
    private OATableEditor editor;
    private int charWidth = 0; // single X char width in pixels

    public OATableColumn(String propertyPath) {
        this.propertyPaths = new String[] { propertyPath };
    }
    public OATableColumn(String propertyPath, String heading) {
        this.propertyPaths = new String[] { propertyPath };
        this.heading = heading;
    }
    public OATableColumn(String propertyPath, String heading, int columns) {
        this.propertyPaths = new String[] { propertyPath };
        this.heading = heading;
        this.columns = columns;
    }
    public OATableColumn(String propertyPath, String heading, int columns, String format) {
        this.propertyPaths = new String[] { propertyPath };
        this.heading = heading;
        this.columns = columns;
        if (!OAString.isEmpty(format)) this.setFormat(format);
    }
    public OATableColumn(String[] propertyPaths) {
        this.propertyPaths = propertyPaths;
    }
    public OATableColumn(String[] propertyPaths, String heading) {
        this.propertyPaths = propertyPaths;
        this.heading = heading;
    }
    public OATableColumn(String[] propertyPaths, String heading, int columns) {
        this.propertyPaths = propertyPaths;
        this.heading = heading;
        this.columns = columns;
    }

    public int getColumns() {
        return columns;
    }
    /** length of text (in characters).  */
    public void setColumns(int x) {
        columns = x;
    }
    public void setHeading(String s) {
        this.heading = s;
    }
    public String getHeader() {
        return heading;
    }

    
    /** width of a single character.  Used to compute the width based on columns, defaults to 12 */
    public void setAverageCharWidth(int w) {
        charWidth = w;
    }
    public int getAverageCharWidth() {
        return charWidth;
    }
    
    /**
        Returns format to use for displaying value as a String.
        @see OADate#OADate
        see OAConverterNumber#OAConverterNumber
    */
    public String getFormat() {
        if (format == null) getDefaultFormat();
        return format;
    }
    public void setFormat(String fmt) {
        this.format = fmt;
        bDefaultFormat = false;
    }
    
    private boolean bDefaultFormat=true;
    protected String getDefaultFormat() {
        if (!bDefaultFormat || format != null || table == null) return format;
        Hub hub = table.getHub();
        if (hub == null) return format;
        
        if (propertyPaths == null || propertyPaths.length!=1 || OAString.isEmpty(propertyPaths[0])) return format;
        bDefaultFormat = false;
    
        OAPropertyPath pp = new OAPropertyPath(hub.getObjectClass(), propertyPaths[0]);
        if (pp != null) format = pp.getFormat();
        
        return format;
    }
    
    
    /** if true, then the output will be converted to '*' characters. */
    public boolean getPassword() {
        return bPassword;
    }
    public void setPassword(boolean tf) {
        bPassword = tf;
    }

    
    protected String getHtml(Hub hub, Object object, int row) {
        String s = null;
        if (object == null) s = " ";
        else if (bPassword) {
            s = "*****";
        }
        else if (!(object instanceof OAObject)) {
            s = object.toString();
        }
        else {
            for (String prop : propertyPaths) {
                if (s == null) s = "";
                else s += "
";
                String s2 = ((OAObject)object).getPropertyAsString(prop, getFormat());
                if (s2 == null) s2 = "";
                s += s2;
            }
        }
        return s;
    }
    
    // called by OATable
    protected String getHtml(Hub hub, Object object, int row, boolean bHeading) {
        String s = null;

        if (bHeading) {
            s = heading;
            if (s == null) s = "";
        }
        else {
            s = getHtml(hub, object, row);
        }
        /** qqqq not needed, table will have width and overflow set        
        if (s.length() > columns) {
            if (s.charAt(0) == ' ') s = OAString.format(s, columns+" R.");
            else s = OAString.format(s, columns+"L.");
        }
        else if (bHeading) {
            for (int i=s.length(); i