cx2DZoomHandler.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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#include "cx2DZoomHandler.h"
#include "cxViewGroup.h"
#include "cxLogger.h"
#include "cxUtilHelpers.h"
#include "cxSyncedValue.h"

namespace cx
{

Zoom2DHandler::Zoom2DHandler()
{
        this->set(SyncedValue::create(1.0));
}

void Zoom2DHandler::setGroupData(ViewGroupDataPtr group)
{
        mGroupData = group;
        this->set(group->getGlobal2DZoom());
}

double Zoom2DHandler::getFactor()
{
        return mZoom2D->get().toDouble();
}

void Zoom2DHandler::setFactor(double factor)
{
        factor = constrainValue(factor, 0.2, 10.0);
        mZoom2D->set(factor);
}

void Zoom2DHandler::set(SyncedValuePtr value)
{
        if (mZoom2D)
                disconnect(mZoom2D.get(), SIGNAL(changed()), this, SIGNAL(zoomChanged()));
        mZoom2D = value;
        if (mZoom2D)
                connect(mZoom2D.get(), SIGNAL(changed()), this, SIGNAL(zoomChanged()));

        emit zoomChanged();
}

void Zoom2DHandler::addActionsToMenu(QMenu* contextMenu)
{
        this->addConnectivityAction("global", "Global 2D Zoom", contextMenu);
        this->addConnectivityAction("group", "Group 2D Zoom", contextMenu);
        this->addConnectivityAction("local", "Disconnected 2D Zoom", contextMenu);
        contextMenu->addSeparator();
}

void Zoom2DHandler::addConnectivityAction(QString type, QString text, QMenu* contextMenu)
{
        QAction* action = new QAction(text, contextMenu);
        action->setCheckable(true);
        action->setData(type);
        action->setChecked(this->getConnectivityType()==type);
        connect(action, SIGNAL(triggered()), this, SLOT(zoom2DActionSlot()));
        contextMenu->addAction(action);
}

void Zoom2DHandler::zoom2DActionSlot()
{
        QAction* theAction = static_cast<QAction*>(sender());
        if(!theAction)
                return;

        QString action = theAction->data().toString();
        this->setConnectivityFromType(action);
}

QString Zoom2DHandler::getConnectivityType()
{
        if (!mGroupData)
                return "local";
        if (mGroupData->getGroup2DZoom() == mZoom2D)
                return "group";
        if (mGroupData->getGlobal2DZoom() == mZoom2D)
                return "global";
        return "local";
}

void Zoom2DHandler::setConnectivityFromType(QString type)
{
        if (!mGroupData)
                type = "local";

        if (type=="global")
        {
                this->set(mGroupData->getGlobal2DZoom());
        }
        else if (type=="group")
        {
                this->set(mGroupData->getGroup2DZoom());
        }
        else if (type=="local")
        {
                this->set(SyncedValue::create(this->getFactor()));
        }
        else
        {
                reportWarning(QString("No zoom connectivity found for type [%1].").arg(type));
        }
}




} // namespace cx