ch.qos.logback.beagle.preferences.BeaglePreferencesPage.java Source code

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Here is the source code for ch.qos.logback.beagle.preferences.BeaglePreferencesPage.java

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/**
 * Logback-beagle: The logback Console Plugin for Eclipse 
 * Copyright (C) 2006-2012, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation.
 */
package ch.qos.logback.beagle.preferences;

import org.eclipse.jface.preference.FieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.IntegerFieldEditor;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

import ch.qos.logback.beagle.Activator;

/**
 * 
 * @author ceki
 * 
 */
public class BeaglePreferencesPage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    public static final String PATTERN_PREFERENCE = "ch.qos.logback.beagle.Pattern";
    public static final String PATTERN_PREFERENCE_DEFAULT_VALUE = "%date %-5level %thread %logger{48} - %message";

    public static final String BUFFER_SIZE_PREFERENCE = "ch.qos.logback.beagle.BufferSize";
    public static final int BUFFER_SIZE_PREFERENCE_DEFAULT_VALUE = 10 * 100;
    static final int MIN_BUFFER_SIZE = 100;
    static final int MAX_BUFFER_SIZE = 100 * 1000;

    private StringFieldEditor patternEditor;
    private IntegerFieldEditor bufferSizeEditor;

    public BeaglePreferencesPage() {
        super(GRID);
        setPreferenceStore(Activator.INSTANCE.getPreferenceStore());
        setDescription("? Beagle (logback console) :");
    }

    @Override
    public void init(IWorkbench workbench) {
    }

    @Override
    protected void checkState() {
        super.checkState();
        if (!isValid())
            return;
        int val = bufferSizeEditor.getIntValue();
        if (val <= MIN_BUFFER_SIZE) {
            setErrorMessage("     " + MIN_BUFFER_SIZE);
            setValid(false);
        } else if (val > MAX_BUFFER_SIZE) {
            setErrorMessage("     " + MAX_BUFFER_SIZE);
            setValid(false);
        }
    }

    public void propertyChange(PropertyChangeEvent event) {
        super.propertyChange(event);
        if (FieldEditor.VALUE.equals(event.getProperty())) {
            if (event.getSource() == bufferSizeEditor) {
                checkState();
            }
        }
    }

    @Override
    protected void createFieldEditors() {
        patternEditor = new StringFieldEditor(PATTERN_PREFERENCE, " ?-:",
                getFieldEditorParent());
        addField(patternEditor);

        bufferSizeEditor = new IntegerFieldEditor(BUFFER_SIZE_PREFERENCE, "  (?):",
                getFieldEditorParent());
        addField(bufferSizeEditor);
    }

}