/*
 * Copyright (c) 2011, grossmann
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package org.jowidgets.impl.content;

import org.jowidgets.api.toolkit.Toolkit;
import org.jowidgets.api.widgets.IInputControl;
import org.jowidgets.api.widgets.blueprint.factory.IBluePrintFactory;
import org.jowidgets.api.widgets.content.IInputContentContainer;
import org.jowidgets.api.widgets.content.IInputContentCreator;
import org.jowidgets.common.widgets.descriptor.IWidgetDescriptor;
import org.jowidgets.common.widgets.layout.MigLayoutDescriptor;
import org.jowidgets.util.Assert;

class SingleControlContent<INPUT_TYPE> implements IInputContentCreator<INPUT_TYPE> {

    private final String label;
    private final IWidgetDescriptor<? extends IInputControl<INPUT_TYPE>> descriptor;
    private final String layoutConstraints;

    private IInputControl<INPUT_TYPE> control;
    private INPUT_TYPE value;

    SingleControlContent(
        final String label,
        final IWidgetDescriptor<? extends IInputControl<INPUT_TYPE>> descriptor,
        final String layoutConstraints) {

        Assert.paramNotNull(label, "label");
        Assert.paramNotNull(descriptor, "descriptor");
        this.label = label;
        this.descriptor = descriptor;
        if (layoutConstraints != null) {
            this.layoutConstraints = layoutConstraints;
        }
        else {
            this.layoutConstraints = "w 150::, grow";
        }
    }

    @Override
    public void createContent(final IInputContentContainer contentContainer) {
        if (control != null) {
            throw new IllegalStateException("Content must only be created once");
        }
        final IBluePrintFactory bpf = Toolkit.getBluePrintFactory();
        contentContainer.setLayout(new MigLayoutDescriptor("[][grow, 0::]", "[]"));
        contentContainer.add(bpf.textLabel(label), "");
        control = contentContainer.add(descriptor, layoutConstraints);
        if (value != null) {
            control.setValue(value);
        }
    }

    @Override
    public void setValue(final INPUT_TYPE value) {
        if (control != null) {
            control.setValue(value);
        }
        else {
            this.value = value;
        }
    }

    @Override
    public INPUT_TYPE getValue() {
        if (control != null) {
            return control.getValue();
        }
        else {
            return this.value;
        }
    }

}