cxViewCollectionWidgetMixed.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 "cxViewCollectionWidgetMixed.h"
#include <QGridLayout>
#include "cxViewCollectionWidgetUsingViewContainer.h"
#include "cxViewCollectionWidgetUsingViewWidgets.h"
#include "cxViewUtilities.h"
#include "vtkRenderWindow.h"
#include "cxGLHelpers.h"
#include "cxLogger.h"
#include "cxMultiViewCache.h"

namespace cx
{

ViewCollectionWidgetMixed::ViewCollectionWidgetMixed(QWidget* parent) :
        ViewCollectionWidget(parent)
{
        mLayout = new QGridLayout(this);
        this->setLayout(mLayout);
        mViewCache = MultiViewCache::create();

        mBaseLayout = new ViewCollectionWidgetUsingViewContainer(this);
        this->initBaseLayout();
        this->setGridMargin(4);
        this->setGridSpacing(2);
}

ViewCollectionWidgetMixed::~ViewCollectionWidgetMixed()
{
}

void ViewCollectionWidgetMixed::initBaseLayout()
{
        this->addWidgetToLayout(mLayout, mBaseLayout, LayoutRegion(0,0));
        mBaseRegion = LayoutRegion(-1,-1);
        mTotalRegion = LayoutRegion(-1,-1);
}

ViewPtr ViewCollectionWidgetMixed::addView(View::Type type, LayoutRegion region)
{
        ViewPtr view;
        mTotalRegion = merge(region, mTotalRegion);

        if (type==View::VIEW_3D)
        {
                //Using cached 3D view don't work if mBaseRegion covers the 3D view region (In some cases.) CX-63
                this->mViewCache->clearCache();
                ViewWidget* overlay = this->mViewCache->retrieveView(this, View::VIEW_3D, mBaseLayout->getOffScreenRendering());
                overlay->getView()->setType(type);
                overlay->show();
                mOverlays.push_back(overlay);
                view = overlay->getView();
                this->addWidgetToLayout(mLayout, overlay, region);
        }
        else
        {
                mBaseRegion = merge(region, mBaseRegion);
                view = mBaseLayout->addView(type, region);

                // re-add the base widget with updated position in grid
                this->addWidgetToLayout(mLayout, mBaseLayout, mBaseRegion);
        }
        view_utils::setStretchFactors(mLayout, mTotalRegion, 1);

        return view;
}

void ViewCollectionWidgetMixed::setOffScreenRenderingAndClear(bool on)
{
        this->clearViews();
        mBaseLayout->setOffScreenRenderingAndClear(on);
}

bool ViewCollectionWidgetMixed::getOffScreenRendering() const
{
        return mBaseLayout->getOffScreenRendering();
}

void ViewCollectionWidgetMixed::addWidgetToLayout(QGridLayout* layout, QWidget* widget, LayoutRegion region)
{
        layout->addWidget(widget,
                                          region.pos.row, region.pos.col,
                                          region.span.row, region.span.col);
}

void ViewCollectionWidgetMixed::clearViews()
{
        mViewCache->clearViews();

        for (unsigned i=0; i<mOverlays.size(); ++i)
        {
                mOverlays[i]->hide();
                mLayout->removeWidget(mOverlays[i]);
        }
        mOverlays.clear();

        mBaseLayout->clearViews();
        mLayout->removeWidget(mBaseLayout);

        // rebuild to default state:
        view_utils::setStretchFactors(mLayout, mTotalRegion, 0);
        this->initBaseLayout();
}

void ViewCollectionWidgetMixed::setModified()
{
        mBaseLayout->setModified();
        for (unsigned i=0; i<mOverlays.size(); ++i)
                mOverlays[i]->setModified();
}

void ViewCollectionWidgetMixed::render()
{
        mBaseLayout->render();

        for (unsigned i=0; i<mOverlays.size(); ++i)
        {
                mOverlays[i]->render();
        }

    emit rendered();
}

void ViewCollectionWidgetMixed::setGridSpacing(int val)
{
        mLayout->setSpacing(val);
        mBaseLayout->setGridSpacing(val);
}

void ViewCollectionWidgetMixed::setGridMargin(int val)
{
        mBaseLayout->setGridMargin(0);
        mLayout->setMargin(val);
}

int ViewCollectionWidgetMixed::getGridSpacing() const
{
    return mLayout->spacing();
}

int ViewCollectionWidgetMixed::getGridMargin() const
{
    return mLayout->margin();
}


std::vector<ViewPtr> ViewCollectionWidgetMixed::getViews()
{
        std::vector<ViewPtr> retval = mBaseLayout->getViews();
        for (unsigned i=0; i<mOverlays.size(); ++i)
                retval.push_back(mOverlays[i]->getView());
        return retval;
}

QPoint ViewCollectionWidgetMixed::getPosition(ViewPtr view)
{
    for (unsigned i=0; i<mOverlays.size(); ++i)
    {
        if (mOverlays[i]->getView()==view)
        {
            QPoint p = mOverlays[i]->mapToGlobal(QPoint(0,0));
            p = this->mapFromGlobal(p);
            return p;
        }
    }

    QPoint p = mBaseLayout->getPosition(view);
    p = mBaseLayout->mapToGlobal(p);
    p = this->mapFromGlobal(p);
        return p;
}

void ViewCollectionWidgetMixed::enableContextMenuForViews(bool enable)
{
        mBaseLayout->enableContextMenuForViews(enable);
        Qt::ContextMenuPolicy policy = enable ? Qt::CustomContextMenu : Qt::PreventContextMenu;
        for (unsigned i=0; i<mOverlays.size(); ++i)
        {
                mOverlays[i]->setContextMenuPolicy(policy);
        }
}

} /* namespace cx */