cxViewCollectionWidgetUsingViewWidgets.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 "cxViewCollectionWidgetUsingViewWidgets.h"
#include "cxGLHelpers.h"
#include "cxViewUtilities.h"
#include "cxLogger.h"
#include "vtkRenderWindow.h"
#include "cxMultiViewCache.h"

namespace cx
{

LayoutWidgetUsingViewWidgets::LayoutWidgetUsingViewWidgets(RenderWindowFactoryPtr factory, QWidget* parent) :
        ViewCollectionWidget(parent)
{
        mViewCache = MultiViewCache::create(factory);
        mOffScreenRendering = false;

        mLayout = new QGridLayout;

        mLayout->setSpacing(2);
        mLayout->setMargin(4);

        this->setLayout(mLayout);
}

LayoutWidgetUsingViewWidgets::~LayoutWidgetUsingViewWidgets()
{
}

ViewPtr LayoutWidgetUsingViewWidgets::addView(View::Type type, LayoutRegion region)
{
        ViewWidget* view = mViewCache->retrieveView(this, type, mOffScreenRendering);

        view->getView()->setType(type);

        mLayout->addWidget(view, region.pos.row, region.pos.col, region.span.row, region.span.col);
        view_utils::setStretchFactors(mLayout, region, 1);
        view->show();

        mViews.push_back(view);
        return view->getView();
}

void LayoutWidgetUsingViewWidgets::setOffScreenRenderingAndClear(bool on)
{
        this->clearViews();
        mOffScreenRendering = on;
}

bool LayoutWidgetUsingViewWidgets::getOffScreenRendering() const
{
        return mOffScreenRendering;
}

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

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

        view_utils::setStretchFactors(mLayout, LayoutRegion(0, 0, LayoutData::MaxGridSize, LayoutData::MaxGridSize), 0);
}

void LayoutWidgetUsingViewWidgets::setModified()
{
        for (unsigned i=0; i<mViews.size(); ++i)
        {
                ViewWidget* current = mViews[i];
                current->setModified();
        }
}

void LayoutWidgetUsingViewWidgets::render()
{
        for (unsigned i=0; i<mViews.size(); ++i)
        {
                ViewWidget* current = mViews[i];
                current->render(); // render only changed scenegraph (shaky but smooth)
        }

    emit rendered();
}

QPoint LayoutWidgetUsingViewWidgets::getPosition(ViewPtr view)
{
    ViewWidget* widget = this->WidgetFromView(view);
    if (!widget)
    {
        CX_LOG_ERROR() << "Did not find view in layout " << view->getUid();
        return QPoint(0,0);
    }

    QPoint p = widget->mapToGlobal(QPoint(0,0));
    p = this->mapFromGlobal(p);
        return p;
}

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

ViewWidget* LayoutWidgetUsingViewWidgets::WidgetFromView(ViewPtr view)
{
    for (unsigned i=0; i<mViews.size(); ++i)
    {
        ViewWidget* current = mViews[i];
        if (current->getView()==view)
            return current;
    }
    return NULL;
}

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

void LayoutWidgetUsingViewWidgets::setGridMargin(int val)
{
        mLayout->setMargin(val);
}

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

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

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

} // cx