Java tutorial
/* ********************************************************************** ** ** Copyright notice ** ** ** ** (c) 2005-2009 RSSOwl Development Team ** ** http://www.rssowl.org/ ** ** ** ** All rights reserved ** ** ** ** This program and the accompanying materials are made available under ** ** the terms of the Eclipse Public License v1.0 which accompanies this ** ** distribution, and is available at: ** ** http://www.rssowl.org/legal/epl-v10.html ** ** ** ** A copy is found in the file epl-v10.html and important notices to the ** ** license from the team is found in the textfile LICENSE.txt distributed ** ** in this package. ** ** ** ** This copyright notice MUST APPEAR in all copies of the file! ** ** ** ** Contributors: ** ** RSSOwl Development Team - initial API and implementation ** ** ** ** ********************************************************************** */ package org.rssowl.ui.internal.dialogs.exporter; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StyledText; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.rssowl.core.internal.newsaction.LabelNewsAction; import org.rssowl.core.interpreter.ITypeExporter; import org.rssowl.core.persist.IFilterAction; import org.rssowl.core.persist.ILabel; import org.rssowl.core.persist.ISearchFilter; import org.rssowl.core.persist.dao.DynamicDAO; import org.rssowl.ui.internal.OwlUI; import java.util.Collection; import java.util.HashSet; import java.util.List; import java.util.Set; /** * A {@link WizardPage} to select which RSSOwl settings to include in the * export. * * @author bpasero */ public class ExportOptionsPage extends WizardPage { private Button fExportSettingsCheck; private Button fExportFiltersCheck; private Button fExportLabelsCheck; /** * @param pageName */ protected ExportOptionsPage(String pageName) { super(pageName, pageName, OwlUI.getImageDescriptor("icons/wizban/export_wiz.png")); //$NON-NLS-1$ setMessage(Messages.ExportOptionsPage_EXPORT_OPTIONS); } /* * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite) */ public void createControl(Composite parent) { Composite container = new Composite(parent, SWT.NONE); container.setLayout(new GridLayout(1, false)); StyledText infoText = new StyledText(container, SWT.WRAP | SWT.READ_ONLY); infoText.setEnabled(false); infoText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); ((GridData) infoText.getLayoutData()).widthHint = 200; infoText.setBackground(container.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND)); infoText.setText(Messages.ExportOptionsPage_OPTIONS_INFO); /* Labels */ Collection<ILabel> labels = DynamicDAO.loadAll(ILabel.class); fExportLabelsCheck = new Button(container, SWT.CHECK); fExportLabelsCheck.setImage(OwlUI.getImage(fExportLabelsCheck, "icons/elcl16/labels.gif")); //$NON-NLS-1$ if (!labels.isEmpty()) fExportLabelsCheck.setText(NLS.bind(Messages.ExportOptionsPage_EXPORT_N_LABELS, labels.size())); else fExportLabelsCheck.setText(Messages.ExportOptionsPage_EXPORT_LABELS); fExportLabelsCheck.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); ((GridData) fExportLabelsCheck.getLayoutData()).verticalIndent = 10; fExportLabelsCheck.setEnabled(!labels.isEmpty()); /* Filters */ Collection<ISearchFilter> filters = DynamicDAO.loadAll(ISearchFilter.class); final boolean filtersUseLabels = filtersUseLabels(filters); fExportFiltersCheck = new Button(container, SWT.CHECK); fExportFiltersCheck.setImage(OwlUI.getImage(fExportFiltersCheck, OwlUI.FILTER)); if (!filters.isEmpty()) fExportFiltersCheck.setText(NLS.bind(Messages.ExportOptionsPage_EXPORT_N_FILTERS, filters.size())); else fExportFiltersCheck.setText(Messages.ExportOptionsPage_EXPORT_FILTERS); fExportFiltersCheck.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); fExportFiltersCheck.setEnabled(!filters.isEmpty()); fExportFiltersCheck.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (fExportFiltersCheck.getSelection() && !fExportLabelsCheck.getSelection() && filtersUseLabels) { fExportLabelsCheck.setSelection(true); setMessage(Messages.ExportOptionsPage_EXPORT_LABEL_FILTER_INFO, IMessageProvider.INFORMATION); } else if (!fExportFiltersCheck.getSelection()) { setMessage(Messages.ExportOptionsPage_EXPORT_OPTIONS); } } }); /* Properties */ fExportSettingsCheck = new Button(container, SWT.CHECK); fExportSettingsCheck.setImage(OwlUI.getImage(fExportSettingsCheck, "icons/elcl16/preferences.gif")); //$NON-NLS-1$ fExportSettingsCheck.setText(Messages.ExportOptionsPage_EXPORT_PREFERENCES); fExportSettingsCheck.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); Dialog.applyDialogFont(container); setControl(container); } /* Check if any Filter uses the Label Action */ private boolean filtersUseLabels(Collection<ISearchFilter> filters) { for (ISearchFilter filter : filters) { List<IFilterAction> actions = filter.getActions(); for (IFilterAction action : actions) { if (LabelNewsAction.ID.equals(action.getActionId())) return true; } } return false; } /* Get selected Export Options */ Set<ITypeExporter.Options> getExportOptions() { Set<ITypeExporter.Options> options = new HashSet<ITypeExporter.Options>(); if (fExportLabelsCheck.getSelection()) options.add(ITypeExporter.Options.EXPORT_LABELS); if (fExportFiltersCheck.getSelection()) options.add(ITypeExporter.Options.EXPORT_FILTERS); if (fExportSettingsCheck.getSelection()) options.add(ITypeExporter.Options.EXPORT_PREFERENCES); return options; } /* * @see org.eclipse.jface.wizard.WizardPage#isPageComplete() */ @Override public boolean isPageComplete() { return true; } }