/*
 This file is part of the software framework JStatCom, 
 a library for building applications for data based analysis.

 Copyright (C) 2000-2005  Markus Kraetzig

 This library is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as
 published by the Free Software Foundation; either version 2.1 of the
 License, or (at your option) any later version.

 This library is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 USA
 */

package com.jstatcom.component;

import javax.swing.table.AbstractTableModel;

import javolution37.javolution.xml.XmlElement;
import javolution37.javolution.xml.XmlFormat;

import com.jstatcom.model.JSCInt;
import com.jstatcom.project.ProjectManager;
import com.jstatcom.project.SettingsElement;

/**
 * Holds user set properties. This can be used together with the
 * AppSettings dialog to edit user settings.
 * 
 * @author Markus Kraetzig 
 */
public final class AppSettings extends AbstractTableModel implements
        SettingsElement {

    private JSCInt saveLastState = new JSCInt("lastState", 1);

    private JSCInt sControlEdit = new JSCInt("sControlEdit", 0);

    private JSCInt exitDialog = new JSCInt("exitDialog", 1);

    private JSCInt showExplorer = new JSCInt("showExplorer", 1);

    private static final int defaultMax = 10000;

    private JSCInt maxArrayDisplaySize = new JSCInt("maxArrayDisplaySize",
            defaultMax);

    /**
     * XML format field for (de)serialization.
     */
    public static final XmlFormat AppSettings_XML = new XmlFormat(
            AppSettings.class) {
        public void format(AppSettings data, XmlElement xml) {
            xml.add(data.saveLastState);
            xml.add(data.sControlEdit);
            xml.add(data.exitDialog);
            xml.add(data.showExplorer);
            xml.add(data.maxArrayDisplaySize);

        }

        public AppSettings parse(XmlElement xml) {
            AppSettings settings = new AppSettings();

            if (xml.hasNext()) {
                JSCInt val = (JSCInt) xml.getNext();
                settings.saveLastState = val;
            }
            if (xml.hasNext()) {
                JSCInt val = (JSCInt) xml.getNext();
                settings.sControlEdit = val;
            }
            if (xml.hasNext()) {
                JSCInt val = (JSCInt) xml.getNext();
                settings.exitDialog = val;
            }
            if (xml.hasNext()) {
                JSCInt val = (JSCInt) xml.getNext();
                settings.showExplorer = val;
            }
            if (xml.hasNext()) {
                JSCInt val = (JSCInt) xml.getNext();
                if (val.intVal() < 0)
                    val.setInt(defaultMax);
                settings.maxArrayDisplaySize = val;
            }
            return settings;
        }
    };

    /**
     * Default constructor.
     * 
     */
    public AppSettings() {

    }

    /**
     * Copy constructor.
     * 
     * @param appSettings
     *            the instance to create a copy of
     */
    public AppSettings(AppSettings appSettings) {
        super();
        this.saveLastState = appSettings.saveLastState.copy();
        this.sControlEdit = appSettings.sControlEdit.copy();
        this.exitDialog = appSettings.exitDialog.copy();
        this.showExplorer = appSettings.showExplorer.copy();
        this.maxArrayDisplaySize = appSettings.maxArrayDisplaySize.copy();

    }

    /*
     * (non-Javadoc)
     * 
     * @see com.jstatcom.project.SettingsElement#setElement()
     */
    public void setElement() {
        TopFrame topFrame = ProjectManager.getInstance().getTopFrame();
        if (topFrame != null)
            topFrame.setAppSettings(this);
    }

    /**
     * Gets JSCInt indicating whether save last state is on.
     * 
     * @return JSCInt
     */
    public JSCInt getSaveLastState() {
        return saveLastState;
    }

    /**
     * Gets JSCInt indicating whether the symbol table data table
     * elements should be editable.
     * 
     * @return JSCInt
     */
    public JSCInt getSControlEdit() {
        return sControlEdit;
    }

    /**
     * Gets JSCInt indicating whether exit Dialog should be
     * shown.
     * 
     * @return JSCInt
     */
    public JSCInt getExitDialog() {
        return exitDialog;
    }

    /**
     * Gets JSCInt indicating whether explorer panel should be
     * shown.
     * 
     * @return JSCInt
     */
    public JSCInt getShowExplorer() {
        return showExplorer;
    }

    /**
     * Gets JSCInt indicating the maximum array size (number of elements) that should
     * be displayed in the symbol control.
     * 
     * @return JSCInt
     */
    public JSCInt getMaxArrayDisplaySize() {
        return maxArrayDisplaySize;
    }

    public int getColumnCount() {
        return 2;
    }

    public int getRowCount() {
        return 5;
    }

    public boolean isCellEditable(int row, int col) {
        if (col == 1)
            return true;
        return false;
    }

    public String getColumnName(int col) {
        if (col == 0)
            return "Property";
        if (col == 1)
            return "Value";

        throw new RuntimeException("Invalid column index " + col + ".");
    }

    public Object getValueAt(int row, int col) {
        if (row >= getRowCount() || col >= getColumnCount())
            throw new IndexOutOfBoundsException("Index " + row + ":" + col
                    + " is out of range.");

        // 1. column with property name
        if (col == 0) {
            if (row == 0)
                return "save/restore last project state";
            if (row == 1)
                return "matrices in symbol table editable (expert)";
            if (row == 2)
                return "show exit dialog";
            if (row == 3)
                return "show explorer panel";
            if (row == 4)
                return "maximum number of array elements to display in symbol control";
        }
        // 2. column with property value
        if (col == 1) {
            if (row == 0)
                return Boolean.valueOf(saveLastState.intVal() != 0);
            if (row == 1)
                return Boolean.valueOf(sControlEdit.intVal() != 0);
            if (row == 2)
                return Boolean.valueOf(exitDialog.intVal() != 0);
            if (row == 3)
                return Boolean.valueOf(showExplorer.intVal() != 0);
            if (row == 4)
                return maxArrayDisplaySize.intVal();

        }

        throw new RuntimeException("Should never be reached.");
    }

    public void setValueAt(Object value, int row, int col) {
        if (col == 1) {
            if (row == 0)
                saveLastState.setVal(((Boolean) value).booleanValue() ? 1 : 0);
            if (row == 1)
                sControlEdit.setVal(((Boolean) value).booleanValue() ? 1 : 0);
            if (row == 2)
                exitDialog.setVal(((Boolean) value).booleanValue() ? 1 : 0);
            if (row == 3)
                showExplorer.setVal(((Boolean) value).booleanValue() ? 1 : 0);
            if (row == 4) {
                Integer val = null;
                try {
                    val = Integer.parseInt(value + "");
                } catch (Exception ex) {
                }
                if (val != null && val >= 0)
                    maxArrayDisplaySize.setVal(val.intValue());

            }

        }
    }
}