com.bdaum.zoom.ui.internal.widgets.LabelConfigGroup.java Source code

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Here is the source code for com.bdaum.zoom.ui.internal.widgets.LabelConfigGroup.java

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/*
 * This file is part of the ZoRa project: http://www.photozora.org.
 *
 * ZoRa is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * ZoRa 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 ZoRa; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * (c) 2017 Berthold Daum  
 */
package com.bdaum.zoom.ui.internal.widgets;

import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;

import com.bdaum.zoom.core.Constants;
import com.bdaum.zoom.ui.internal.UiUtilities;
import com.bdaum.zoom.ui.widgets.CGroup;
import com.bdaum.zoom.ui.widgets.NumericControl;

public class LabelConfigGroup implements Listener {

    private RadioButtonGroup showGroup;
    private TextWithVariableGroup templateGroup;
    private NumericControl fontField;

    private int offset;

    public LabelConfigGroup(Composite parent, boolean inherit) {
        offset = inherit ? 0 : 1;
        CGroup labelgroup = UiUtilities.createGroup(parent, 1, Messages.LabelConfigGroup_tumbnail_labels);
        showGroup = new RadioButtonGroup(labelgroup, Messages.LabelConfigGroup_show, SWT.VERTICAL,
                inherit ? new String[] { Messages.LabelConfigGroup_inherited, Messages.LabelConfigGroup_title,
                        Messages.LabelConfigGroup_nothing, Messages.LabelConfigGroup_custom }
                        : new String[] { Messages.LabelConfigGroup_title, Messages.LabelConfigGroup_nothing,
                                Messages.LabelConfigGroup_custom });
        showGroup.addListener(this);
        Composite tempComp = new Composite(labelgroup, SWT.NONE);
        GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
        layoutData.horizontalIndent = 15;
        tempComp.setLayoutData(layoutData);
        tempComp.setLayout(new GridLayout(4, false));
        templateGroup = new TextWithVariableGroup(tempComp, Messages.LabelConfigGroup_template, 400,
                Constants.TH_ALL, true, null, null, null);
        new Label(tempComp, SWT.NONE).setText(Messages.LabelConfigGroup_fontsize);
        fontField = new NumericControl(tempComp, SWT.NONE);
        fontField.setMinimum(5);
        fontField.setMaximum(14);
    }

    @Override
    public void handleEvent(Event e) {
        updateControls();
    }

    private void updateControls() {
        boolean enabled = showGroup.getSelection() + offset == Constants.CUSTOM_LABEL;
        templateGroup.setEnabled(enabled);
        fontField.setEnabled(enabled);
    }

    public void setSelection(int index, String template, int fontSize) {
        showGroup.setSelection(index - offset);
        if (index == Constants.CUSTOM_LABEL && template != null)
            templateGroup.setText(template);
        if (fontSize == 0)
            fontSize = JFaceResources.getDefaultFont().getFontData()[0].getHeight();
        fontField.setSelection(fontSize);
        updateControls();
    }

    public int getSelection() {
        int sel = showGroup.getSelection();
        if (sel >= 0)
            return sel + offset;
        return -1;
    }

    public String getTemplate() {
        return templateGroup.getText();
    }

    public void addListener(Listener listener) {
        showGroup.addListener(listener);
    }

    public void removeSelectionListener(Listener listener) {
        showGroup.removeListener(listener);
    }

    public String validate() {
        if (showGroup.getSelection() + offset == Constants.CUSTOM_LABEL && templateGroup.getText().isEmpty())
            return Messages.LabelConfigGroup_provide_template;
        return null;
    }

    public int getFontSize() {
        return fontField.getSelection();
    }

}