cxOptionsWidget.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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   this list of conditions and the following disclaimer in the documentation 
   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.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
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=========================================================================*/

#include "cxOptionsWidget.h"

#include <QLabel>
#include "cxBaseWidget.h"
#include "cxHelperWidgets.h"

namespace cx {

OptionsWidget::OptionsWidget(ViewServicePtr viewService, PatientModelServicePtr patientModelService, QWidget* parent) :
                mShowAdvanced(false),
                mViewService(viewService),
                mPatientModelService(patientModelService)
{
        this->setSizePolicy(this->sizePolicy().horizontalPolicy(), QSizePolicy::Fixed);
        mStackedLayout = new QStackedLayout(this);
        mStackedLayout->setMargin(0);
}

void OptionsWidget::setOptions(QString uid, std::vector<SelectDataStringPropertyBasePtr> options, bool showAdvanced)
{
        std::vector<PropertyPtr> converted;
        std::copy(options.begin(), options.end(), std::back_inserter(converted));
        this->setOptions(uid, converted, showAdvanced);
}

void OptionsWidget::setOptions(QString uid, std::vector<PropertyPtr> options, bool showAdvanced)
{
        // return if already on uid
        if (mStackedLayout->currentWidget() && (uid == mStackedLayout->currentWidget()->objectName()))
                return;

        mOptions = options;
        mUid = uid;

        this->showAdvanced(showAdvanced);
}

QString OptionsWidget::getCurrentUid()
{
        return mStackedLayout->currentWidget()->objectName();
}

void OptionsWidget::showAdvanced(bool show)
{
        mShowAdvanced = show;
        this->rebuild();
}

void OptionsWidget::rebuild()
{
        this->clear();
        this->populate(mShowAdvanced);
}

bool OptionsWidget::hasOptions() const
{
    if(mOptions.size() == 0)
        return false;

    return true;
}

bool OptionsWidget::hasAdvancedOptions() const
{
    for(std::vector<PropertyPtr>::const_iterator it = mOptions.begin(); it != mOptions.end(); ++it)
    {
        if(it->get()->getAdvanced())
            return true;
    }

    return false;
}

void OptionsWidget::toggleAdvanced()
{
        this->showAdvanced(!mShowAdvanced);
}

void OptionsWidget::clear()
{
        QLayoutItem *child;
        while ((child = mStackedLayout->takeAt(0)) != 0)
        {
                // delete both the layoutitem AND the widget. Not auto done because layoutitem is no QObject.
                QWidget* widget = child->widget();
                delete child;
                delete widget;
        }
}

void OptionsWidget::populate(bool showAdvanced)
{
        // No existing found,
        // create a new stack element for this uid:
        QWidget* widget = new QWidget(this);
        widget->setObjectName(mUid);
        mStackedLayout->addWidget(widget);
        QGridLayout* layout = new QGridLayout(widget);
        layout->setMargin(layout->margin()/2);

        std::map<QString, QWidget*> groupWidgets;
        QWidget* otherWidget = NULL;
        for (unsigned i = 0; i < mOptions.size(); ++i)
        {
                if(showAdvanced || (!showAdvanced && !mOptions[i]->getAdvanced()))
                {
                        QWidget* groupWidget = NULL;
                        QGridLayout* groupLayout = NULL;

                        //make new group if needed
                        QString groupName = mOptions[i]->getGroup();
                        if(groupName.isEmpty())
                                groupName = "other";
                        std::map<QString, QWidget*>::iterator it = groupWidgets.find(groupName);
                        if(it == groupWidgets.end())
                        {
                                groupWidget = new QWidget(widget);
                                groupWidget->setObjectName(groupName);
                                groupLayout = new QGridLayout(groupWidget);
                                groupLayout->setMargin(groupLayout->margin()/2);
                                QWidget* temp = this->createGroupHeaderWidget(groupName);
                                groupLayout->addWidget(temp,0,0,1,2);
                                layout->addWidget(groupWidget);
                                groupWidgets[groupName] = groupWidget;
                                if(groupName == "other")
                                        otherWidget = temp;
                        }
                        else
                        {
                                groupWidget = it->second;
                                groupLayout = dynamic_cast<QGridLayout*>(groupWidget->layout());
                        }

                        //count groupwidgets items to determine row
                        int itemsInGroup = groupLayout->count();

                        //make dataadaptewidget and add to existing group
                        blockSignals(true);
                        createDataWidget(mViewService, mPatientModelService, groupWidget, mOptions[i], groupLayout, ++itemsInGroup);
                        blockSignals(false);
                }
        }

        //hide group header if only one the "other" group exists
        if((groupWidgets.size() == 1) && (otherWidget != NULL))
                otherWidget->hide();

        mStackedLayout->setCurrentWidget(widget);
}

QWidget* OptionsWidget::createGroupHeaderWidget(QString title)
{
        QWidget* retval = new QWidget(this);
        QVBoxLayout* layout = new QVBoxLayout(retval);
        layout->setMargin(0);
        layout->setSpacing(0);

        QLabel* label = new QLabel(title);
        QFont font = label->font();
        font.setPointSize(8);
        label->setFont(font);
        layout->addWidget(label);
        layout->addWidget(BaseWidget::createHorizontalLine());

        return retval;
}

} /* namespace cx */