// ================================================================================================
// 
// This file is part of the CAMPVis Software Framework.
// 
// If not explicitly stated otherwise: Copyright (C) 2012, all rights reserved,
//      Christian Schulte zu Berge <christian.szb@in.tum.de>
//      Chair for Computer Aided Medical Procedures
//      Technische Universität München
//      Boltzmannstr. 3, 85748 Garching b. München, Germany
// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
// 
// 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.
// 
// ================================================================================================

#ifndef CAMPVISMAINWINDOW_H__
#define CAMPVISMAINWINDOW_H__

#include "sigslot/sigslot.h"
#include "application/campvisapplication.h"
#include "application/gui/pipelinetreewidget.h"
#include "application/gui/properties/propertycollectionwidget.h"
#include "application/tools/qtexteditlog.h"
#include "application/ui_mainwindow.h"

#include <QMainWindow>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QPushButton>
#include <QTextEdit>
#include <vector>

namespace campvis {
    class DataContainerInspectorWidget;
    class DataContainerInspectorCanvas;

    /**
     * Main Window for the CAMPVis application.
     * Wraps a nice Qt GUI around the CampVisApplication instance given during creation.
     */
    class MainWindow : public QMainWindow, public sigslot::has_slots<> {
        Q_OBJECT;

    public:
        /**
         * Creates a new TumVis Main window for \a application.
         * \param   application     CampVisApplication to create a GUI for.
         */
        MainWindow(CampVisApplication* application);

        /**
         * Destructor, make sure to call before destroying the application
         */
        ~MainWindow();

        
        /**
         * Initializes all OpenGL related stuff
         */
        void init();

        /**
         * Deinitializes all OpenGL related stuff
         */
        void deinit();

        /**
         * Slot to be called by the application when its collection of pipelines has changed.
         */
        void onPipelinesChanged();

        /**
         * Size hint for the default window size
         * \return QSize(800, 450)
         */
        QSize sizeHint() const;

    signals:
        /// Qt signal for updating the PipelineWidget.
        void updatePipelineWidget(const std::vector<AbstractPipeline*>&);
        /// Qt signal for updating the PropertyCollectionWidget
        void updatePropCollectionWidget(HasPropertyCollection*);

    private slots:
        /**
         * Slot to be called by the PipelineWidget when the selected item changes.
         * \param   index   Index of the selected item
         */
        void onPipelineWidgetItemClicked(const QModelIndex& index);

        /**
         * Slot to be called when _btnExecute was clicked.
         */
        void onBtnExecuteClicked();

        /**
         * Slot to be called when _btnShowDataContainerInspector was clicked.
         */
        void onBtnShowDataContainerInspectorClicked();

    private:
        /**
         * Setup Qt GUI stuff
         */
        void setup();

        Ui::MainWindow ui;                                  ///< Interface definition of the MainWindow

        CampVisApplication* _application;                    ///< Pointer to the application hosting the whole stuff

        QWidget* _centralWidget;                            ///< Central widget of the MainWindow
        PipelineTreeWidget* _pipelineWidget;                ///< Widget for browsing the active pipelines
        PropertyCollectionWidget* _propCollectionWidget;    ///< Widget for brosing the PropertyCollection of the selected pipeline/processor
        DataContainerInspectorWidget* _dcInspectorWidget;   ///< Widget for inspecting the DataContainer of the selected pipeline.

        QPushButton* _btnExecute;                           ///< Button to execute the selected pipeline/processor
        QPushButton* _btnShowDataContainerInspector;        ///< Button to show the DataContainerInspector for the selected pipeline

        AbstractPipeline* _selectedPipeline;                ///< currently selected pipeline
        AbstractProcessor* _selectedProcessor;              ///< currently selected processor
        QTextEditLog* _log;                                 ///< Log appending messages to a QTextEdit
        QTextEdit* _logViewer;                              ///< Widget displaying log messages
    };
}

#endif // CAMPVISMAINWINDOW_H__