cxToolListWidget.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/

#include "cxToolListWidget.h"

#include <QListWidgetItem>
#include <QDir>
#include <QDropEvent>
#include <QMimeData>
#include <QAction>
#include <QMenu>
#include <QDrag>
#include "cxEnumConverter.h"
#include "cxLogger.h"
#include "cxTrackerConfiguration.h"
#include "cxTrackingService.h"

namespace cx
{
//---------------------------------------------------------------------------------------------------------------------

ToolListWidget::ToolListWidget(TrackingServicePtr trackingService, QWidget* parent) :
        QListWidget(parent),
        mTrackingService(trackingService)
{
        connect(this, SIGNAL(itemSelectionChanged()), this, SLOT(selectionChangedSlot()));

        this->setSelectionBehavior(QAbstractItemView::SelectItems);
        this->setSelectionMode(QAbstractItemView::SingleSelection);
}

ToolListWidget::~ToolListWidget()
{
}

void ToolListWidget::populate(QStringList toolsAbsoluteFilePath)
{
        this->clear();

        foreach(QString tool, toolsAbsoluteFilePath)
        {
                this->addTool(tool);
        }
        emit listSizeChanged();
}

void ToolListWidget::addTool(QString absoluteFilePath)
{
        TrackerConfigurationPtr config = mTrackingService->getConfiguration();
        QString name = config->getTool(absoluteFilePath).mName;

//      QFile file(absoluteFilePath);
//      QFileInfo info(file);
//      QListWidgetItem* item = new QListWidgetItem(/*QIcon, */info.dir().dirName());
        QListWidgetItem* item = new QListWidgetItem(name);
        item->setData(Qt::ToolTipRole, absoluteFilePath);
        item->setData(Qt::UserRole, absoluteFilePath);
        this->addItem(item);
        emit listSizeChanged();
}

void ToolListWidget::selectionChangedSlot()
{
        QListWidgetItem* selectedItem = this->currentItem();
        this->toolSelectedSlot(selectedItem);
}

void ToolListWidget::toolSelectedSlot(QListWidgetItem* item)
{
        if (!item)
                return;

        QString absoluteFilePath = item->data(Qt::UserRole).toString();
        emit toolSelected(absoluteFilePath);
}

//---------------------------------------------------------------------------------------------------------------------

FilteringToolListWidget::FilteringToolListWidget(TrackingServicePtr trackingService, QWidget* parent) :
                ToolListWidget(trackingService, parent)
{
        this->setDragDropMode(QAbstractItemView::DragOnly);
        this->setDragEnabled(true);
}

FilteringToolListWidget::~FilteringToolListWidget()
{
}

QSize FilteringToolListWidget::minimumSizeHint() const
{
        QFontMetrics metric(this->font());
        int height = metric.lineSpacing() * 15; // approx 15 lines of text
        return QSize(300,height); // the height here is important: the default is 150, which is too little
}

void FilteringToolListWidget::mousePressEvent(QMouseEvent *event)
{
        if (event->button() == Qt::LeftButton)
                startPos = event->pos();
        QListWidget::mousePressEvent(event);
}

void FilteringToolListWidget::mouseMoveEvent(QMouseEvent *event)
{
        if (event->buttons() & Qt::LeftButton)
        {
                int distance = (event->pos() - startPos).manhattanLength();
                if (distance >= 10)
                        this->startDrag();
        }
}

void FilteringToolListWidget::startDrag()
{
        QListWidgetItem *item = currentItem();
        if (item)
        {
                QMimeData *mimeData = new QMimeData;
                mimeData->setText(item->data(Qt::ToolTipRole).toString());
                QDrag *drag = new QDrag(this);
                drag->setMimeData(mimeData);

                drag->start(Qt::MoveAction);
        }
}

void FilteringToolListWidget::filterSlot(QStringList applicationsFilter, QStringList trackingsystemsFilter)
{
        TrackerConfigurationPtr config = mTrackingService->getConfiguration();
        QStringList filteredTools = config->getToolsGivenFilter(applicationsFilter,
                                                                                                                  trackingsystemsFilter);
//      filteredTools.sort(); // no good: we would like to sort on name, but the list is full paths
        this->populate(filteredTools);
}

//---------------------------------------------------------------------------------------------------------------------

ConfigToolListWidget::ConfigToolListWidget(TrackingServicePtr trackingService, QWidget* parent) :
                ToolListWidget(trackingService, parent)
{
        this->setContextMenuPolicy(Qt::CustomContextMenu);

        this->viewport()->setAcceptDrops(true);
        this->setDropIndicatorShown(true);
        this->setDefaultDropAction(Qt::CopyAction);
        this->setDragDropMode(QAbstractItemView::DropOnly);

connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(contextMenuSlot(const QPoint &)));
}

ConfigToolListWidget::~ConfigToolListWidget()
{
}

void ConfigToolListWidget::dragEnterEvent(QDragEnterEvent *event)
{
        QStringList all = this->getTools();
        if (all.contains(event->mimeData()->text()))
                event->ignore();
        else
                event->accept();
}

void ConfigToolListWidget::dragMoveEvent(QDragMoveEvent *event)
{
        event->setDropAction(Qt::MoveAction);
//  event->accept();
        QStringList all = this->getTools();
        if (all.contains(event->mimeData()->text()))
                event->ignore();
        else
                event->accept();
}

void ConfigToolListWidget::dropEvent(QDropEvent *event)
{
//  std:: cout << "received dropEvent: " << event->mimeData()->text() << std::endl;
        this->addTool(event->mimeData()->text());
//  addItem(event->mimeData()->text());
        event->setDropAction(Qt::MoveAction);
        event->accept();
        emit userChangedList();
        emit listSizeChanged();
}

QStringList ConfigToolListWidget::getTools()
{
        QStringList retval;

        for (int i = 0; i < this->count(); ++i)
        {
                QListWidgetItem* item = this->item(i);
                retval << item->data(Qt::ToolTipRole).toString();
        }

        return retval;
}

void ConfigToolListWidget::configSlot(QStringList toolsAbsoluteFilePath)
{
        this->populate(toolsAbsoluteFilePath);
}

void ConfigToolListWidget::filterSlot(QStringList trackingsystemFilter)
{
        TrackerConfigurationPtr config = mTrackingService->getConfiguration();

        for (int i = 0; i < this->count(); ++i)
        {
                QListWidgetItem* item = this->item(i);
                QString absoluteFilePath = item->data(Qt::ToolTipRole).toString();

                QString toolTrackingSystemName = config->getTool(absoluteFilePath).mTrackingSystemName;

                QBrush brush = item->foreground();
                if (!trackingsystemFilter.contains(toolTrackingSystemName, Qt::CaseInsensitive) || !config->verifyTool(absoluteFilePath))
                        brush.setColor(Qt::red);
                else
                        brush.setColor(Qt::black);

                item->setForeground(brush);
        }
}

void ConfigToolListWidget::deleteSlot()
{
        if (!mItemToDelete)
        {
                reportDebug("Found no item to delete...");
                return;
        }
        this->deleteItemSlot(mItemToDelete);
}

void ConfigToolListWidget::deleteItemSlot(QListWidgetItem* item)
{
        delete item;
        emit userChangedList();
        emit listSizeChanged();
}

void ConfigToolListWidget::contextMenuSlot(const QPoint& point)
{
        QWidget* sender = dynamic_cast<QWidget*>(this->sender());
        QPoint pointGlobal = sender->mapToGlobal(point);
        QMenu contextMenu(sender);

        QAction* action = new QAction("Remove", &contextMenu);

        QListWidgetItem* item = this->itemAt(point);
        if (!item)
        {
                reportDebug("Found no item to delete...");
                return;
        }
        mItemToDelete = item;

        connect(action, SIGNAL(triggered()), this, SLOT(deleteSlot()));
        contextMenu.addAction(action);

        contextMenu.exec(pointGlobal);
}

//---------------------------------------------------------------------------------------------------------------------
}//namespace cx