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datacontainerinspectorwidget.cpp 13.3 KB
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// ================================================================================================
// 
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// This file is part of the CAMPVis Software Framework.
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// 
// If not explicitly stated otherwise: Copyright (C) 2012, all rights reserved,
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//      Christian Schulte zu Berge <christian.szb@in.tum.de>
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//      Chair for Computer Aided Medical Procedures
//      Technische Universitt Mnchen
//      Boltzmannstr. 3, 85748 Garching b. Mnchen, Germany
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// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
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// 
// The licensing of this softare is not yet resolved. Until then, redistribution in source or
// binary forms outside the CAMP chair is not permitted, unless explicitly stated in legal form.
// However, the names of the original authors and the above copyright notice must retain in its
// original state in any case.
// 
// Legal disclaimer provided by the BSD license:
// 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 THE COPYRIGHT HOLDER OR 
// CONTRIBUTORS 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.
// 
// ================================================================================================

#include "datacontainerinspectorwidget.h"

#include "tgt/assert.h"
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#include "tgt/filesystem.h"
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#include "tgt/shadermanager.h"
#include "tgt/textureunit.h"
#include "tgt/qt/qtcontextmanager.h"
#include "tgt/qt/qtthreadedcanvas.h"

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#ifdef CAMPVIS_HAS_MODULE_DEVIL
#include <IL/il.h>
#include <IL/ilu.h>
#endif

#include "core/tools/job.h"
#include "core/tools/opengljobprocessor.h"

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#include "core/datastructures/abstractdata.h"
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#include "core/datastructures/datacontainer.h"
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#include "core/datastructures/facegeometry.h"
#include "core/datastructures/imagerepresentationgl.h"
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#include "core/datastructures/imagerepresentationrendertarget.h"
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#include "application/gui/datacontainertreewidget.h"
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#include "application/gui/qtdatahandle.h"
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#include <QFileDialog>

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namespace campvis {
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    DataContainerInspectorWidget::DataContainerInspectorWidget(QWidget* parent) 
        : QWidget(parent)
        , _dataContainer(0)
        , _dctWidget(0)
        , _canvas(0)
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        , _pcWidget(0)
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        , _mainLayout(0)
        , _infoWidget(0)
        , _infoWidgetLayout(0)
    {
        setupGUI();
    }

    DataContainerInspectorWidget::~DataContainerInspectorWidget() {
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        if (_dataContainer != 0) {
            _dataContainer->s_dataAdded.disconnect(this);
        }
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    }

    void DataContainerInspectorWidget::setDataContainer(DataContainer* dataContainer) {
        if (_dataContainer != 0) {
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            _dataContainer->s_dataAdded.disconnect(this);
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        }

        _dataContainer = dataContainer;
        _dctWidget->update(dataContainer);
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        updateInfoWidget();
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        if (_dataContainer != 0) {
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            _dataContainer->s_dataAdded.connect(this, &DataContainerInspectorWidget::onDataContainerDataAdded);
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        }
    }

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    void DataContainerInspectorWidget::onDataContainerDataAdded(const std::string& key, const DataHandle& dh) {
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        // copy QtDataHandle because signal will be handled by a different thread an indefinite amount of time later:
        emit dataContainerChanged(QString::fromStdString(key), QtDataHandle(dh));
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    }

    QSize DataContainerInspectorWidget::sizeHint() const {
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        return QSize(800, 600);
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    }

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    void DataContainerInspectorWidget::setupGUI() {
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        setWindowTitle(tr("DataContainer Inspector"));

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        _mainLayout = new QHBoxLayout();
        _mainLayout->setSpacing(4);
        setLayout(_mainLayout);

        _dctWidget = new DataContainerTreeWidget(this);
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        _dctWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
        _dctWidget->setSelectionMode(QAbstractItemView::ExtendedSelection);
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        _mainLayout->addWidget(_dctWidget);

        _infoWidget = new QWidget(this);
        _infoWidgetLayout = new QVBoxLayout();
        _infoWidgetLayout->setSpacing(4);
        _infoWidget->setLayout(_infoWidgetLayout);

        _lblName = new QLabel(QString("Name: "), _infoWidget);
        _infoWidgetLayout->addWidget(_lblName);

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        _lblLocalMemoryFootprint = new QLabel(QString("Local Memory Footprint: "), _infoWidget);
        _infoWidgetLayout->addWidget(_lblLocalMemoryFootprint);

        _lblVideoMemoryFootprint = new QLabel(QString("Video Memory Footprint: "), _infoWidget);
        _infoWidgetLayout->addWidget(_lblVideoMemoryFootprint);

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        _lblTimestamp = new QLabel("Timestamp: ", _infoWidget);
        _infoWidgetLayout->addWidget(_lblTimestamp);

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        _btnSaveToFile = new QPushButton(tr("Save to File"), _infoWidget);
        _infoWidgetLayout->addWidget(_btnSaveToFile);

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        _canvas = new DataContainerInspectorCanvas(_infoWidget);
        _infoWidgetLayout->addWidget(_canvas, 1);
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        _pcWidget = new PropertyCollectionWidget(_infoWidget);
        _pcWidget->updatePropCollection(_canvas);
        _infoWidgetLayout->addWidget(_pcWidget);

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        _mainLayout->addWidget(_infoWidget, 1);
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        qRegisterMetaType<QtDataHandle>("QtDataHandle");
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        connect(
            _dctWidget->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)), 
            this, SLOT(onDCTWidgetSelectionModelSelectionChanged(const QItemSelection&, const QItemSelection&)));
        connect(
            this, SIGNAL(dataContainerChanged(const QString&, QtDataHandle)),
            _canvas, SLOT(onDataContainerChanged(const QString&, QtDataHandle)));
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        connect(
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            this, SIGNAL(dataContainerChanged(const QString&, QtDataHandle)),
            _dctWidget->getTreeModel(), SLOT(onDataContainerChanged(const QString&, QtDataHandle)));
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        connect(
            _btnSaveToFile, SIGNAL(clicked()),
            this, SLOT(onBtnSaveToFileClicked()));
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    }

    void DataContainerInspectorWidget::updateInfoWidget() {
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        // get the selection from the tree widget
        const QModelIndexList& indices = _dctWidget->selectionModel()->selectedRows();
        std::vector< std::pair<QString, QtDataHandle> > handles;
        float _localFootprint = 0.f;
        float _videoFootprint = 0.f;

        // iterate through the indices of the selection
        for (QModelIndexList::const_iterator index = indices.begin(); index != indices.end(); ++index) {
            if (! index->isValid())
                continue;

            // get DataHandle and Handle name
            QVariant item = index->data(Qt::UserRole);
            QtDataHandle handle = item.value<QtDataHandle>();
            QModelIndex idxName = index->sibling(index->row(), 0);

            // only consider non-empty DataHandles
            if (handle.getData() != 0) {
                handles.push_back(std::make_pair(idxName.data(Qt::DisplayRole).toString(), handle));
                _localFootprint += handle.getData()->getLocalMemoryFootprint();
                _videoFootprint += handle.getData()->getVideoMemoryFootprint();
            }
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        }
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        // update labels
        if (handles.size() == 1) {
            _lblName->setText("Name: " + handles.front().first);
            _lblTimestamp->setText("Timestamp: " + QString::number(handles.front().second.getTimestamp()));
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            if (dynamic_cast<const ImageData*>(handles.front().second.getData()))
                _canvas->p_transferFunction.getTF()->setImageHandle(handles.front().second);
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        }
        else {
            _lblName->setText(QString::number(handles.size()) + " DataHandles selected");
            _lblTimestamp->setText("Timestamp: n/a");
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            _canvas->p_transferFunction.getTF()->setImageHandle(DataHandle(0));
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        }
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        _lblLocalMemoryFootprint->setText("Local Memory Footprint: " + humanizeBytes(_localFootprint));
        _lblVideoMemoryFootprint->setText("Video Memory Footprint: " + humanizeBytes(_videoFootprint));

        // update DataHandles for the DataContainerInspectorCanvas
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        _canvas->setDataHandles(handles);
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    }

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    QString DataContainerInspectorWidget::humanizeBytes(size_t numBytes) const {
        QString units[5] = { tr(" Bytes"), tr(" KB"), tr(" MB"), tr(" GB"), tr(" TB") };
        size_t index = 0;
        size_t remainder = 0;

        while (numBytes > 1024 && index < 5) {
            remainder = numBytes % 1024;
            numBytes /= 1024;
            ++index;
        }

        if (remainder != 0)
            return QString::number(numBytes) + "." + QString::number(remainder) + units[index];
        else
            return QString::number(numBytes) + units[index];
    }

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    void DataContainerInspectorWidget::init() {
        if (_canvas != 0)
            _canvas->init();
    }

    void DataContainerInspectorWidget::deinit() {
        if (_canvas != 0)
            _canvas->deinit();
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        _pcWidget->updatePropCollection(0);
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        if (_dataContainer != 0) {
            _dataContainer->s_dataAdded.disconnect(this);
        }

        _dataContainer = 0;
        _dctWidget->update(0);
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    }

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    void DataContainerInspectorWidget::onDCTWidgetSelectionModelSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected) {
        updateInfoWidget();
    }

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    void DataContainerInspectorWidget::onBtnSaveToFileClicked() {
        // get the selection from the tree widget
        const QModelIndexList& indices = _dctWidget->selectionModel()->selectedRows();

        // iterate through the indices of the selection
        for (QModelIndexList::const_iterator index = indices.begin(); index != indices.end(); ++index) {
            if (! index->isValid())
                continue;

            // get DataHandle and Handle name
            QVariant item = index->data(Qt::UserRole);
            DataHandle handle = item.value<QtDataHandle>();
            QModelIndex idxName = index->sibling(index->row(), 0);

            // only consider non-empty DataHandles that are ImageData and have render target representations
            if (handle.getData() != 0) {
                if (const ImageData* tester = dynamic_cast<const ImageData*>(handle.getData())) {
                    if (const ImageRepresentationRenderTarget* repRT = tester->getRepresentation<ImageRepresentationRenderTarget>(false)) {
                        QString dialogCaption = "Export " + idxName.data(Qt::DisplayRole).toString() + " as Image";
                        QString directory = tr("");
                        const QString fileFilter = tr("*.png;;PNG images (*.png)");

                        QString filename = QFileDialog::getSaveFileName(this, dialogCaption, directory, fileFilter);

                        if (! filename.isEmpty()) {
                            // Texture access needs OpenGL context - dispatch method call:
                            GLJobProc.enqueueJob(
                                _canvas, 
                                makeJobOnHeap(&DataContainerInspectorWidget::saveToFile, handle, filename.toStdString()), 
                                OpenGLJobProcessor::SerialJob);
                        }
                    }
                }
            }
        }
    }

    void DataContainerInspectorWidget::saveToFile(DataHandle handle, std::string filename) {
#ifdef CAMPVIS_HAS_MODULE_DEVIL
        if (tgt::FileSystem::fileExtension(filename).empty()) {
            LERRORC("CAMPVis.application.DataContainerInspectorWidget", "Filename has no extension");
            return;
        }

        // we did the test before, hence, static_cast ist safe
        const ImageRepresentationRenderTarget* repRT = static_cast<const ImageData*>(handle.getData())->getRepresentation<ImageRepresentationRenderTarget>(false);
        tgtAssert(repRT != 0, "DataHandle must be of type ImageData having an ImageRepresentationRenderTarget inside - otherwise you're not allowed to call this method!");

        // get color buffer content
        GLubyte* colorBuffer = repRT->getColorTexture()->downloadTextureToBuffer(GL_RGBA, GL_UNSIGNED_SHORT);
        tgt::ivec2 size = repRT->getSize().xy();

        // create Devil image from image data and write it to file
        ILuint img;
        ilGenImages(1, &img);
        ilBindImage(img);

        // put pixels into IL-Image
        ilTexImage(size.x, size.y, 1, 4, IL_RGBA, IL_UNSIGNED_SHORT, colorBuffer);
        ilEnable(IL_FILE_OVERWRITE);
        ilResetWrite();
        ILboolean success = ilSaveImage(filename.c_str());
        ilDeleteImages(1, &img);

        delete[] colorBuffer;

        if (!success) {
            LERRORC("CAMPVis.application.DataContainerInspectorWidget", "Could not save image to file: " << ilGetError());
        }
#else
        return;
#endif

    }

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}