ch.elexis.core.ui.preferences.inputs.MultilineFieldEditor.java Source code

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Here is the source code for ch.elexis.core.ui.preferences.inputs.MultilineFieldEditor.java

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/*******************************************************************************
 * Copyright (c) 2006-2009, G. Weirich and Sgam.informatics
 * 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.core.ui.preferences.inputs;

import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;

import ch.elexis.core.ui.util.SWTHelper;

public class MultilineFieldEditor extends StringFieldEditor {
    Text textField;
    int numOfLines;
    int flags = SWT.BORDER;
    boolean isStringList;

    public MultilineFieldEditor(String name, String labelText, Composite parent) {
        // super(name, labelText, UNLIMITED, parent);
        this(name, labelText, 3, 0, false, parent);
    }

    public MultilineFieldEditor(String name, String labelText, int numLines, int flags, boolean asStringList,
            Composite parent) {
        // super(name, labelText, UNLIMITED, parent);
        numOfLines = numLines;
        this.flags = SWT.BORDER | flags;
        isStringList = asStringList;
        init(name, labelText);
        createControl(parent);
        GridData gd = (GridData) textField.getLayoutData();
        GC gc = new GC(textField);
        Point pt = gc.textExtent("X"); //$NON-NLS-1$
        gc.dispose();
        gd.minimumHeight = pt.y * numLines;
        gd.heightHint = pt.y * numLines;
        gd.grabExcessHorizontalSpace = true;
        textField.setLayoutData(gd);
    }

    @Override
    public Text getTextControl(Composite parent) {
        if (textField == null) {
            textField = SWTHelper.createText(parent, numOfLines, flags);
            textField.setFont(parent.getFont());
            textField.addKeyListener(new KeyAdapter() {
                public void keyReleased(KeyEvent e) {
                    valueChanged();
                }
            });
            textField.addDisposeListener(new DisposeListener() {
                public void widgetDisposed(DisposeEvent event) {
                    textField = null;
                }
            });
        } else {
            checkParent(textField, parent);
        }
        return textField;
    }

    @Override
    protected void doLoad() {
        if (textField != null) {
            String value = getPreferenceStore().getString(getPreferenceName());
            if (isStringList) {
                value = value.replaceAll(",", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
            }
            textField.setText(value);
        }
    }

    @Override
    protected void doStore() {
        String value = textField.getText();
        if (isStringList) {
            value = value.replaceAll("[\\r\\n]+", ","); //$NON-NLS-1$ //$NON-NLS-2$
        }
        getPreferenceStore().setValue(getPreferenceName(), value);
    }

    @Override
    public String getStringValue() {
        String ret = super.getStringValue();
        if (isStringList) {
            return ret.replaceAll("[\\r\\n]+", ","); //$NON-NLS-1$ //$NON-NLS-2$
        }
        return ret;
    }

    @Override
    public void setStringValue(String value) {
        if (isStringList) {
            super.setStringValue(value.replaceAll(",", "\\n")); //$NON-NLS-1$ //$NON-NLS-2$
        } else {
            super.setStringValue(value);
        }
    }

}