BefundePrefs.java

/*******************************************************************************
 * Copyright (c) 2005-2011, G. Weirich and Elexis
 * 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.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    G. Weirich - initial implementation
 *******************************************************************************/
package ch.elexis.base.befunde;

import java.util.Map;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

import ch.elexis.befunde.Messwert;
import ch.elexis.core.data.activator.CoreHub;
import ch.elexis.core.ui.util.SWTHelper;
import ch.rgw.tools.StringTool;

/**
 * Hier kann der Anwender Einstellungen (Preferences) für das Befunde-Plugin vornehmen. Diese
 * Einstellungsseite wird bei den gemeinsamen Einstellungen (Datei-Einstellungen) eingebaut. Jedes
 * Plugin kann keine bis beliebig viele Einstellungsseiten unter keiner bis beliebig vielen
 * Unterkategorien erstellen.
 * 
 * @author Gerry
 * 
 *         Here can the user define some Preferences for the "Befunde-Plugin" (Findings) This
 *         adjustment page will be added to the general adjustments (Datei-Einstellung i.e.
 *         "Data-Adjustements"). Each plugin is able to have, or not, as many as wanted adjustment
 *         pages with none or as many as desired subcategories
 * 
 */
public class BefundePrefs extends PreferencePage implements IWorkbenchPreferencePage {
	
	Map<Object, Object> fields;
	// Combo cbNames;
	// Text vals;
	// String sel;
	Messwert setup;
	String names;
	CTabFolder ctabs;
	int lastIDX;
	
	public BefundePrefs(){
		super("Befunde"); //$NON-NLS-1$
	}
	
	/**
	 * Diese Methode erledigt den eigentlichen Aufbau der Seite. Here we create the contents of the
	 * preference page
	 */
	@SuppressWarnings("unchecked")
	@Override
	protected Control createContents(final Composite parent){
		Composite ret = new Composite(parent, SWT.NONE);
		ret.setLayout(new GridLayout());
		ctabs = new CTabFolder(ret, SWT.NONE);
		ctabs.setLayoutData(SWTHelper.getFillGridData(1, true, 1, true));
		ctabs.setLayout(new FillLayout());
		setup = Messwert.getSetup();
		fields = setup.getMap("Befunde"); //$NON-NLS-1$
		names = (String) fields.get("names"); //$NON-NLS-1$
		if (!StringTool.isNothing(names)) {
			for (String f : names.split(Messwert.SETUP_SEPARATOR)) {
				CTabItem ci = new CTabItem(ctabs, SWT.NONE);
				ci.setText(f);
				PrefsPage fp = new PrefsPage(ctabs, fields, f);
				ci.setControl(fp);
			}
		}
		ctabs.setSelection(0);
		lastIDX = 0;
		ctabs.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(final SelectionEvent e){
				if (lastIDX != -1) {
					flush(lastIDX);
					lastIDX = ctabs.getSelectionIndex();
				}
			}
		});
		
		Composite cButtons = new Composite(ret, SWT.NONE);
		cButtons.setLayout(new FillLayout());
		Button bAdd = new Button(cButtons, SWT.PUSH);
		bAdd.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(final SelectionEvent e){
				InputDialog id =
					new InputDialog(getShell(), Messages.getString("BefundePrefs.enterNameCaption"), //$NON-NLS-1$
						Messages.getString("BefundePrefs.enterNameMessage"), "", //$NON-NLS-1$//$NON-NLS-2$
						new FindingNameInputValidator());
				if (id.open() == Dialog.OK) {
					String name = id.getValue();
					if (StringTool.isNothing(names)) {
						names = name;
					} else {
						names += Messwert.SETUP_SEPARATOR + name;
					}
					fields.put("names", names); //$NON-NLS-1$
					CTabItem ci = new CTabItem(ctabs, SWT.NONE);
					ci.setText(name);
					PrefsPage fp = new PrefsPage(ctabs, fields, name);
					ci.setControl(fp);
					ctabs.setSelection(ci);
				}
			}
			
		});
		bAdd.setText(Messages.getString("BefundePrefs.add")); //$NON-NLS-1$
		
		Button bRemove = new Button(cButtons, SWT.PUSH);
		bRemove.addSelectionListener(new SelectionAdapter() {
			
			@Override
			public void widgetSelected(final SelectionEvent e){
				CTabItem ci = ctabs.getSelection();
				if (ci != null) {
					PrefsPage pp = (PrefsPage) ci.getControl();
					if (pp.remove()) {
						names = names.replaceFirst(ci.getText(), ""); //$NON-NLS-1$
						names =
							names.replaceAll(Messwert.SETUP_SEPARATOR + Messwert.SETUP_SEPARATOR,
								Messwert.SETUP_SEPARATOR);
						names.replaceFirst(Messwert.SETUP_SEPARATOR + "$", ""); //$NON-NLS-1$ //$NON-NLS-2$
						names = names.replaceFirst("^" + Messwert.SETUP_SEPARATOR, ""); //$NON-NLS-1$ //$NON-NLS-2$
						fields.put("names", names); //$NON-NLS-1$
						lastIDX = -1;
						ci.dispose();
						ctabs.setSelection(0);
					}
				}
			}
		});
		bRemove.setText(Messages.getString("BefundePrefs.deleteText")); //$NON-NLS-1$
		if (!CoreHub.acl.request(ACLContributor.DELETE_PARAM)) {
			bRemove.setEnabled(false);
		}
		
		Button bRename = new Button(cButtons, SWT.PUSH);
		bRename.setText(Messages.getString("BefundePrefs.renameFinding"));
		bRename.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e){
				CTabItem tab = ctabs.getSelection();
				if (tab != null) {
					// ask user for desired new name
					InputDialog id = new InputDialog(getShell(),
						Messages.getString("BefundePrefs.enterRenameCaption"),
						Messages.getString("BefundePrefs.enterRenameMessage"), "",
						new FindingNameInputValidator());
					if (id.open() == Dialog.OK) {
						String oldName = tab.getText();
						String newName = id.getValue();
						
						PrefsPage pp = (PrefsPage) tab.getControl();
						// renames all relations in DB
						if (pp.rename(newName)) {
							names = names.replaceFirst(oldName, newName); //$NON-NLS-1$
						}
						fields.put("names", names); //$NON-NLS-1$
						tab.setText(newName);
					}
				}
			}
		});
		
		return ret;
	}
	
	/**
	 * Hier könnte man Dinge erledigen, die noch vor createContents gemacht werden müssen.
	 * 
	 * Here we are able to solve things that needs to be made before createContents
	 */
	public void init(final IWorkbench workbench){
		// TODO Auto-generated method stub
		
	}
	
	private void flush(final int idx){
		CTabItem it = ctabs.getItem(idx);
		PrefsPage pp = (PrefsPage) it.getControl();
		pp.flush();
	}
	
	@Override
	protected void performApply(){
		performOk();
		int idx = ctabs.getSelectionIndex();
		CTabItem it = ctabs.getItem(idx);
		PrefsPage pp = (PrefsPage) it.getControl();
		pp.load();
	}
	
	/**
	 * Dies wird ausgeführt, wenn der Anwender auf den "Apply"- bzw, "Übernehmen" - Knopf klickt.
	 * 
	 * This will be executed when the user clicks on the "Apply" or OKButton
	 */
	@Override
	public boolean performOk(){
		int idx = ctabs.getSelectionIndex();
		if (idx != -1) {
			flush(idx);
		}
		setup.setMap("Befunde", fields); //$NON-NLS-1$
		return super.performOk();
	}
	
	class FindingNameInputValidator implements IInputValidator {
		
		@Override
		public String isValid(String newText){
			newText = newText.trim();
			if (newText.endsWith(".")) {
				return Messages.getString("BefundePrefs.dotEndingNameNotAllowed");
			}
			return null;
		}
		
	}
}