Java tutorial
/* * ------------------------------------------------------------------------ * * Copyright (C) 2003 - 2013 * University of Konstanz, Germany and * KNIME GmbH, Konstanz, Germany * Website: http://www.knime.org; Email: contact@knime.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, Version 3, as * published by the Free Software Foundation. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses>. * * Additional permission under GNU GPL version 3 section 7: * * KNIME interoperates with ECLIPSE solely via ECLIPSE's plug-in APIs. * Hence, KNIME and ECLIPSE are both independent programs and are not * derived from each other. Should, however, the interpretation of the * GNU GPL Version 3 ("License") under any applicable laws result in * KNIME and ECLIPSE being a combined program, KNIME GMBH herewith grants * you the additional permission to use and propagate KNIME together with * ECLIPSE with only the license terms in place for ECLIPSE applying to * ECLIPSE and the GNU GPL Version 3 applying for KNIME, provided the * license terms of ECLIPSE themselves allow for the respective use and * propagation of ECLIPSE together with KNIME. * * Additional permission relating to nodes for KNIME that extend the Node * Extension (and in particular that are based on subclasses of NodeModel, * NodeDialog, and NodeView) and that only interoperate with KNIME through * standard APIs ("Nodes"): * Nodes are deemed to be separate and independent programs and to not be * covered works. Notwithstanding anything to the contrary in the * License, the License does not apply to Nodes, you are not required to * license Nodes under the License, and you are granted a license to * prepare and propagate Nodes, in each case even if such Nodes are * propagated with or for interoperation with KNIME. The owner of a Node * may freely choose the license terms applicable to such Node, including * when such Node is propagated with or for interoperation with KNIME. * --------------------------------------------------------------------- * * */ package org.knime.knip.base.prefs; import org.eclipse.jface.preference.BooleanFieldEditor; import org.eclipse.jface.preference.FieldEditorPreferencePage; import org.eclipse.jface.preference.IntegerFieldEditor; import org.eclipse.jface.preference.StringFieldEditor; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.knime.knip.base.KNIMEKNIPPlugin; /** * This class represents a preference page that is contributed to the Preferences dialog. By subclassing * <samp>FieldEditorPreferencePage</samp>, we can use the field support built into JFace that allows us to create a page * that is small and knows how to save, restore and apply itself. * <p> * This page is used to modify preferences only. They are stored in the preference store that belongs to the main * plug-in class. That way, preferences can be accessed directly via the preference store. */ /** * TODO Auto-generated * * @author <a href="mailto:dietzc85@googlemail.com">Christian Dietz</a> * @author <a href="mailto:horn_martin@gmx.de">Martin Horn</a> * @author <a href="mailto:michael.zinsmaier@googlemail.com">Michael Zinsmaier</a> */ public class MainPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage { private class DoubleFieldEditor extends StringFieldEditor { public DoubleFieldEditor(final String name, final String labelText, final Composite parent) { init(name, labelText); setTextLimit(10); setEmptyStringAllowed(false); setErrorMessage("Value between 0 and 1 required.");//$NON-NLS-1$ createControl(parent); } @Override protected boolean checkState() { final Text text = getTextControl(); if (text == null) { return false; } final String numberString = text.getText(); try { final double number = Double.valueOf(numberString).doubleValue(); if ((number >= 0) && (number <= 1)) { clearErrorMessage(); return true; } showErrorMessage(); return false; } catch (final NumberFormatException e1) { showErrorMessage(); } return false; } } public MainPreferencePage() { super(GRID); setPreferenceStore(KNIMEKNIPPlugin.getDefault().getPreferenceStore()); setDescription("Preferences for the KNIME Image Processing Plugin."); } /** * Creates the field editors. Field editors are abstractions of the common GUI blocks needed to manipulate various * types of preferences. Each field editor knows how to save and restore itself. */ @Override public void createFieldEditors() { final Composite parent = getFieldEditorParent(); addField(new StringFieldEditor(PreferenceConstants.P_DIM_LABELS, "The available dimension labels (separated by ','):", getFieldEditorParent())); addField(new HorizontalLineField(parent)); addField(new LabelField(parent, "The maximum image cell height \n" + "(0, if it should be determined by the first image in a column).")); addField(new IntegerFieldEditor(PreferenceConstants.P_IMAGE_CELL_HEIGHT, "Image cell height", getFieldEditorParent())); addField(new HorizontalLineField(parent)); addField(new LabelField(parent, "The maximal number of rendered images\n" + "to be cached (requires restart).")); addField(new IntegerFieldEditor(PreferenceConstants.P_BUFFEREDIMAGES_CACHE_SIZE, "Max. number of cached images", getFieldEditorParent())); addField(new HorizontalLineField(parent)); addField(new LabelField(parent, "The maximum file sizes in which the images are stored in MB.\n" + "If 0, each image is stored in a single file (which might result\n" + "in a higher overhead storing the files). Please note that if one\n" + "single image exceeds the file size, then the resulting file will be\n" + "larger than specified.\n" + "NOTE: It's highly recommended to set the file size to 0 otherwise,\n" + "for instance, sorting or writing of tables might not work so far.")); addField(new StringFieldEditor(PreferenceConstants.P_MAX_FILE_SIZE, "The maximum file size in MB", getFieldEditorParent())); // addField(new LabelField(parent, // "If true, the files will be compressed (experimental!)")); // addField(new BooleanFieldEditor( // PreferenceConstants.P_COMPRESS_FILES, // "Compress files (zip)", getFieldEditorParent())); addField(new HorizontalLineField(parent)); addField(new LabelField(parent, "A user-defined ratio determining when to create a thumbnail" + "\nfor the rendering in the KNIME image table. If the ratio of" + "\nthe number of pixels of the thumbnail to be generated to the" + "\nnumber of pixels of the actual image object is below the specified value," + "\nthe thumbnail will be generated and stored with the image data." + "\nIf 0, the thumbnail will never be stored, if 1 everytime.")); addField(new DoubleFieldEditor(PreferenceConstants.P_THUMBNAIL_IMAGE_RATIO, "The Thumbnail-Image Ratio", getFieldEditorParent())); addField(new HorizontalLineField(parent)); addField(new LabelField(parent, "The default behaviour when displaying normalizable images.")); addField(new BooleanFieldEditor(PreferenceConstants.P_ALWAYS_NORMALIZE, "Always normalize images? ", getFieldEditorParent())); } /* * (non-Javadoc) * * @see * org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench * ) */ @Override public void init(final IWorkbench workbench) { // } }