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• FloatingPointBase.java

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net.sourceforge.squirrel_sql.fw.datasetviewer.cellcomponent.FloatingPointBase Maven / Gradle / Ivy

package net.sourceforge.squirrel_sql.fw.datasetviewer.cellcomponent;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.text.NumberFormat;

import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.JRadioButton;

import net.sourceforge.squirrel_sql.fw.gui.OkJPanel;
import net.sourceforge.squirrel_sql.fw.util.StringManager;
import net.sourceforge.squirrel_sql.fw.util.StringManagerFactory;

public abstract class FloatingPointBase extends BaseDataTypeComponent
{
	private static final StringManager s_stringMgr =
		StringManagerFactory.getStringManager(FloatingPointBase.class);

	// flag for whether we have already loaded the properties or not
	private static boolean propertiesAlreadyLoaded = false;


	// flag for whether to use the default Java format (true)
	// or the Locale-dependent format (false)
	protected static boolean useJavaDefaultFormat = false;

	/**
	 * Generate a JPanel containing controls that allow the user
	 * to adjust the properties for this DataType.
	 * All properties are static accross all instances of this DataType.
	 * However, the class may choose to apply the information differentially,
	 * such as keeping a list (also entered by the user) of table/column names
	 * for which certain properties should be used.
	 * 

	 * This is called ONLY if there is at least one property entered into the DTProperties
	 * for this class.
	 * 

	 * Since this method is called by reflection on the Method object derived from this class,
	 * it does not need to be included in the Interface.
	 * It would be nice to include this in the Interface for consistancy, documentation, etc,
	 * but the Interface does not seem to like static methods.
	 */
	public static OkJPanel getControlPanel() {

	  /*
				* If you add this method to one of the standard DataTypes in the
				* fw/datasetviewer/cellcomponent directory, you must also add the name
				* of that DataType class to the list in CellComponentFactory, method
				* getControlPanels, variable named initialClassNameList.
				* If the class is being registered with the factory using registerDataType,
				* then you should not include the class name in the list (it will be found
				* automatically), but if the DataType is part of the case statement in the
				* factory method getDataTypeObject, then it does need to be explicitly listed
				* in the getControlPanels method also.
				*/

		// if this panel is called before any instances of the class have been
		// created, we need to load the properties from the DTProperties.
		loadProperties();

	  return new FloatingPointOkJPanel();
	}


	public FloatingPointBase()
	{
		loadProperties();
	}


	private static void loadProperties() {

		//set the property values
		// Note: this may have already been done by another instance of
		// this DataType created to handle a different column.
		if (propertiesAlreadyLoaded == false) {
			// get parameters previously set by user, or set default values
			useJavaDefaultFormat = false;	// set to use the Java default
			String useJavaDefaultFormatString = DTProperties.get(DataTypeBigDecimal.class.getName(), "useJavaDefaultFormat");

			if (useJavaDefaultFormatString != null && useJavaDefaultFormatString.equals("true"))
			{
				useJavaDefaultFormat =true;
			}
		}
	}


	/**
	 * Inner class that extends OkJPanel so that we can call the ok()
	 * method to save the data when the user is happy with it.
	 */
	private static class FloatingPointOkJPanel extends OkJPanel
	{
        private static final long serialVersionUID = 3745853322636427759L;

        JRadioButton optUseDefaultFormat;
		JRadioButton optUseLocaleDependendFormat;

		public FloatingPointOkJPanel()
		{
			NumberFormat numberFormat = NumberFormat.getInstance();
			numberFormat.setMaximumFractionDigits(5);

			optUseDefaultFormat =
				new JRadioButton(s_stringMgr.getString("floatingPointBase.useDefaultFormat", new Double(3.14159).toString()));
			optUseLocaleDependendFormat =
				new JRadioButton(s_stringMgr.getString("floatingPointBase.uselocaleDependendFormat", numberFormat.format(new Double(3.14159))));



			setBorder(BorderFactory.createTitledBorder(s_stringMgr.getString("floatingPointBase.typeBigDecimal")));

			setLayout(new GridBagLayout());

			GridBagConstraints gbc;
			gbc = new GridBagConstraints(0,0,1,1,0,0,GridBagConstraints.NORTHWEST,GridBagConstraints.HORIZONTAL, new Insets(4, 4, 4, 4),0,0);
			add(optUseLocaleDependendFormat, gbc);
			gbc = new GridBagConstraints(0,1,1,1,0,0,GridBagConstraints.NORTHWEST,GridBagConstraints.HORIZONTAL, new Insets(0, 4, 4, 4),0,0);
			add(optUseDefaultFormat, gbc);



			ButtonGroup bg = new ButtonGroup();
			bg.add(optUseDefaultFormat);
			bg.add(optUseLocaleDependendFormat);

			optUseLocaleDependendFormat.setSelected(!useJavaDefaultFormat);
			optUseDefaultFormat.setSelected(useJavaDefaultFormat);
		}

		/**
		 * User has clicked OK in the surrounding JPanel,
		 * so save the current state of all variables
		 */
		public void ok()
		{
			// get the values from the controls and set them in the static properties
			useJavaDefaultFormat = optUseDefaultFormat.isSelected();
			DTProperties.put(DataTypeBigDecimal.class.getName(), 
			                 "useJavaDefaultFormat", 
			                 Boolean.valueOf(useJavaDefaultFormat).toString());
		}
	} // end of inner class



}