/***********************************************************************************
 *                                                                                 *
 * Voreen - The Volume Rendering Engine                                            *
 *                                                                                 *
 * Copyright (C) 2005-2012 University of Muenster, Germany.                        *
 * Visualization and Computer Graphics Group <http://viscg.uni-muenster.de>        *
 * For a list of authors please refer to the file "CREDITS.txt".                   *
 *                                                                                 *
 * This file is part of the Voreen software package. Voreen is free software:      *
 * you can redistribute it and/or modify it under the terms of the GNU General     *
 * Public License version 2 as published by the Free Software Foundation.          *
 *                                                                                 *
 * Voreen 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 in the file   *
 * "LICENSE.txt" along with this file. If not, see <http://www.gnu.org/licenses/>. *
 *                                                                                 *
 * For non-commercial academic use see the license exception specified in the file *
 * "LICENSE-academic.txt". To get information about commercial licensing please    *
 * contact the authors.                                                            *
 *                                                                                 *
 ***********************************************************************************/

#include "voreen/core/processors/processorwidget.h"

#include "voreen/core/processors/processor.h"
#include "voreen/core/io/serialization/serialization.h"

#include "tgt/logmanager.h"

namespace voreen {

voreen::ProcessorWidget::ProcessorWidget(Processor* processor)
    : processor_(processor)
    , initialized_(false)
{
    tgtAssert(processor, "Null pointer passed as processor");
}

ProcessorWidget::~ProcessorWidget() {
    tgtAssert(processor_, "No processor");
    processor_->deregisterWidget();
}

void ProcessorWidget::initialize() {
    initialized_ = true;
    restoreGeometryFromMeta();
}

void ProcessorWidget::updateFromProcessor(){
}

void ProcessorWidget::processorNameChanged() {
}

void ProcessorWidget::onShow() {
    if (isInitialized())
        saveGeometryToMeta();
}

void ProcessorWidget::onHide() {
    if (isInitialized())
        saveGeometryToMeta();
}

void ProcessorWidget::onMove() {
    if (isInitialized())
        saveGeometryToMeta();
}

void ProcessorWidget::onResize() {
    if (isInitialized())
        saveGeometryToMeta();
}

bool ProcessorWidget::isInitialized() const {
    return initialized_;
}

void ProcessorWidget::saveGeometryToMeta() {
    tgtAssert(processor_, "No processor");

    WindowStateMetaData* meta = new WindowStateMetaData(
        isVisible(),
        getPosition().x,
        getPosition().y,
        getSize().x,
        getSize().y);

    processor_->getMetaDataContainer().addMetaData("ProcessorWidget", meta);
}

void ProcessorWidget::restoreGeometryFromMeta() {
    WindowStateMetaData* meta = dynamic_cast<WindowStateMetaData*>(processor_->getMetaDataContainer().getMetaData("ProcessorWidget"));
    if (!meta) {
        LDEBUGC("voreen.core.ProcessorWidget", "restoreGeometryFromMeta(): No meta data object returned");
        // make processor widgets visible by default
        setVisible(true);
        return;
    }

    if (meta->getX() != -1 && meta->getY() != -1)
        setPosition(meta->getX(), meta->getY());

    if (meta->getWidth() != -1 && meta->getHeight() != -1)
        setSize(meta->getWidth(), meta->getHeight());

    setVisible(meta->getVisible());
}

} // namespace voreen

