VisualizationTextBasic.h

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/*
 * Copyright (C) 2012 by
 *   MetraLabs GmbH (MLAB), GERMANY
 * and
 *   Neuroinformatics and Cognitive Robotics Labs (NICR) at TU Ilmenau, GERMANY
 * All rights reserved.
 *
 * Contact: info@mira-project.org
 *
 * Commercial Usage:
 *   Licensees holding valid commercial licenses may use this file in
 *   accordance with the commercial license agreement provided with the
 *   software or, alternatively, in accordance with the terms contained in
 *   a written agreement between you and MLAB or NICR.
 *
 * GNU General Public License Usage:
 *   Alternatively, this file may be used under the terms of the GNU
 *   General Public License version 3.0 as published by the Free Software
 *   Foundation and appearing in the file LICENSE.GPL3 included in the
 *   packaging of this file. Please review the following information to
 *   ensure the GNU General Public License version 3.0 requirements will be
 *   met: http://www.gnu.org/copyleft/gpl.html.
 *   Alternatively you may (at your option) use any later version of the GNU
 *   General Public License if such license has been publicly approved by
 *   MLAB and NICR (or its successors, if any).
 *
 * IN NO EVENT SHALL "MLAB" OR "NICR" BE LIABLE TO ANY PARTY FOR DIRECT,
 * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
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 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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 */

#ifndef _MIRA_VISUALIZATIONTEXTBASIC_H_
#define _MIRA_VISUALIZATIONTEXTBASIC_H_

#include <serialization/SetterNotify.h>
#include <visualization/VisualizationText.h>

#include <widgets/MultiInputDialog.h>

namespace mira {


template<typename T>
class VisualizationTextBasic : public VisualizationText
{
public:

    VisualizationTextBasic(const std::string& channelName) :
        mName(channelName),
        mFormatted(true),
        mItem(NULL)
    {
        mChannel.setDataChangedCallback(boost::bind(&VisualizationTextBasic::dataChanged, this, _1));
        mChannel.setChannelChangedCallback(boost::bind(&VisualizationTextBasic::channelChanged, this));
    }

    virtual ~VisualizationTextBasic()
    {
        if (getSite() && mItem)
            getSite()->destroyItem(mItem);
    }

    template <typename Reflector>
    void reflect(Reflector& r)
    {
        MIRA_REFLECT_BASE(r, VisualizationText);
        channelProperty(r, mName, mChannel, "");
        r.property("Formatted", mFormatted,
                   setterNotify(mFormatted, &VisualizationTextBasic::redraw, this),
                   "Formatted json output", true);
    }

    virtual void setupScene(IVisualizationTextSite* site)
    {
        mItem = site->addItem();
        mItem->setName(mChannel.getID());
        mItem->setSize(mSize);
        setupScene(mItem);
    }

    virtual void setSize(const Size2i& size)
    {
        VisualizationText::setSize(size);
        if (mItem)
            mItem->setSize(size);
    }

    virtual Size2i getSize() const
    {
        if (mItem)
            return mItem->getSize();
        return mSize;
    }

    virtual void setupScene(IVisualizationTextItem* item) {}

    virtual DataConnection getDataConnection() { return DataConnection(mChannel); }

protected:

    virtual void channelChanged()
    {
        try {
            this->setName(mChannel.getID());
        }
        catch (XRuntime&) {}
        if (!mItem)
            return;
        mItem->setName(mChannel.getID());
        mItem->setText("");
    }

    virtual void dataChanged(ChannelRead<T> data) {}

    virtual std::string defaultText() { return ""; }

    virtual void onEdit()
    {
        if (mChannel.isValid())
        {
            MultiInputDialog dialog("Add new channel data", NULL);
            dialog.addInputField("time", "Timestamp", toString(Time::now()).c_str());
            dialog.addInputField("frame", "FrameID", "");
            dialog.addInputField("sequence", "SequenceID", "0");
            if (mLastValue)
                dialog.addInputField("value", "Value", json::write(*mLastValue, true, mPrecision).c_str(), true);
            else
                dialog.addInputField("value", "Value", defaultText().c_str(), true);
            if (dialog.exec() == 0)
                return;

            json::Value value;
            json::read(dialog.getInput("value").toStdString(), value);
            writeJSON(boost::posix_time::time_from_string(dialog.getInput("time").toStdString()),
                      dialog.getInput("frame").toStdString(),
                      fromString<int>(dialog.getInput("sequence").toStdString()),
                      value);
        }
    }

    virtual void redraw()
    {
        if (mLastValue)
            mItem->setText(json::write(*mLastValue, mFormatted, mPrecision));
    }
    
    virtual void writeJSON(const Time& timestamp, const std::string& frameID,
                           int sequenceID, const json::Value& value)
    {
        ConcreteChannel<void>* channel = MIRA_FW.getChannelManager().getConcreteChannel<void>(this->mChannel.getChannel().getID());
        ChannelWrite<void> cw = channel->write();
        
        cw->timestamp = timestamp;
        cw->frameID = frameID;
        cw->sequenceID = sequenceID;

        try {
            JSONDeserializer jds(value, JSONDeserializer::ACCEPT_STRING_MAP_AS_OBJECT);
            cw.writeJSON(jds);
        }
        catch (XNotImplemented&) {
            cw.writeJSON(value);
        }
    }

    virtual IVisualizationTextItem* getItem() { return mItem; }

protected:
    std::string mName;
    ChannelProperty<T> mChannel;
    bool mFormatted;
    IVisualizationTextItem* mItem;

    boost::optional<json::Value> mLastValue;
};


}

#endif