cxCameraStyle.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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   this list of conditions and the following disclaimer.

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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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#include "cxCameraStyle.h"

#include <QAction>
#include "cxLogger.h"
#include "cxView.h"
#include "cxViewGroup.h"
#include "cxLogger.h"

namespace cx
{

CameraStyle::CameraStyle(CoreServicesPtr backend) :
        mCameraStyle(cstDEFAULT_STYLE),
        mBackend(backend)
{
}

void CameraStyle::addView(ViewPtr view)
{
        if (!view || view->getType()!=View::VIEW_3D)
                return;

        CameraStyleForViewPtr style(new CameraStyleForView(mBackend));
        style->setView(view);
        style->setCameraStyle(mCameraStyle);
        mViews.push_back(style);
}

void CameraStyle::clearViews()
{
        mViews.clear();
}

CAMERA_STYLE_TYPE CameraStyle::getCameraStyle() const
{
        return mCameraStyle;
}

void CameraStyle::setCameraStyle(CAMERA_STYLE_TYPE style)
{
        if (mCameraStyle == style)
                return;

        for (unsigned i=0; i<mViews.size(); ++i)
                mViews[i]->setCameraStyle(style);
        mCameraStyle = style;

        emit cameraStyleChanged();
        report(QString("Activated camera style %1.").arg(enum2string(style)));
}


CameraStyleInteractor::CameraStyleInteractor() :
        mCameraStyleGroup(NULL)
{
}

void CameraStyleInteractor::connectCameraStyle(CameraStylePtr style)
{
        if (mStyle)
                disconnect(mStyle.get(), SIGNAL(cameraStyleChanged()), this, SLOT(updateActionGroup()));
        mStyle = style;
        if (mStyle)
                connect(mStyle.get(), SIGNAL(cameraStyleChanged()), this, SLOT(updateActionGroup()));
        this->updateActionGroup();
}

QActionGroup* CameraStyleInteractor::createInteractorStyleActionGroup()
{
        if (mCameraStyleGroup)
                return mCameraStyleGroup;

        mCameraStyleGroup = new QActionGroup(this);
        mCameraStyleGroup->setExclusive(true);

        this->addInteractorStyleAction("Normal Camera", mCameraStyleGroup,
                                       enum2string(cstDEFAULT_STYLE),
                                       QIcon(":/icons/camera-n.png"),
                                       "Set 3D interaction to the normal camera-oriented style.");
        this->addInteractorStyleAction("Tool", mCameraStyleGroup,
                                       enum2string(cstTOOL_STYLE),
                                       QIcon(":/icons/camera-t.png"),
                                       "Camera following tool.");
        this->addInteractorStyleAction("Angled Tool", mCameraStyleGroup,
                                       enum2string(cstANGLED_TOOL_STYLE),
                                       QIcon(":/icons/camera-at.png"),
                                       "Camera following tool (Placed at an angle of 20 degrees).");
        this->addInteractorStyleAction("Unicam", mCameraStyleGroup,
                                       enum2string(cstUNICAM_STYLE),
                                       QIcon(":/icons/camera-u.png"),
                                       "Set 3D interaction to a single-button style, useful for touch screens.");

        return mCameraStyleGroup;
}

void CameraStyleInteractor::addInteractorStyleAction(QString caption, QActionGroup* group, QString uid, QIcon icon,
                                QString helptext)
{
        QAction* action = new QAction(caption, group);
        action->setIcon(icon);
        action->setCheckable(true);
        action->setData(uid);
        action->setToolTip(helptext);
        action->setWhatsThis(helptext);
        connect(action, SIGNAL(triggered(bool)), this, SLOT(setInteractionStyleActionSlot()));
}

void CameraStyleInteractor::updateActionGroup()
{
        QString currentStyle;
        if (mStyle)
                currentStyle = enum2string(mStyle->getCameraStyle());

        QList<QAction*> actions = mCameraStyleGroup->actions();
        for (int i=0; i<actions.size(); ++i)
        {
                actions[i]->blockSignals(true);
                actions[i]->setChecked(actions[i]->data().toString() == currentStyle);
                actions[i]->setEnabled(mStyle!=0);
                actions[i]->blockSignals(false);
        }

}

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

        QString uid = theAction->data().toString();
        CAMERA_STYLE_TYPE newStyle = string2enum<cx::CAMERA_STYLE_TYPE>(uid);
        if (newStyle==cstCOUNT)
                return;

        if (mStyle)
                mStyle->setCameraStyle(newStyle);
}



}//namespace cx