cxFileSelectWidget.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
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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 
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/*
 * sscFileSelectWidget.cpp
 *
 *  Created on: May 6, 2011
 *      Author: christiana
 */

#include "cxFileSelectWidget.h"
#include <QtWidgets>

#include "cxTypeConversions.h"
#include <iostream>
#include <QHBoxLayout>
#include <QtWidgets>

namespace cx
{

FileSelectWidget::FileSelectWidget(QWidget* parent)
{
        mNameFilters << "*.mhd";
        mFolderDepth = 2;

        QHBoxLayout* dataLayout = new QHBoxLayout(this);
        dataLayout->setMargin(0);
        mDataComboBox = new QComboBox(this);
        connect(mDataComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(currentDataComboIndexChanged(int)));

        mSelectDataAction = new QAction(QIcon(":/icons/open.png"), tr("&Select data"), this);
        connect(mSelectDataAction, SIGNAL(triggered()), this, SLOT(selectData()));
        mSelectDataButton = new QToolButton(this);
        mSelectDataButton->setDefaultAction(mSelectDataAction);

        dataLayout->addWidget(mDataComboBox);
        dataLayout->addWidget(mSelectDataButton);
}

void FileSelectWidget::setFolderDepth(int depth)
{
        mFolderDepth = depth;
}

QString FileSelectWidget::getFilename() const
{
        return mFilename;
}

void FileSelectWidget::setFilename(QString name)
{
        mFilename = name;

        if (QFileInfo(mFilename).isDir())
        {
                mRootPaths.clear();
                mRootPaths << QFileInfo(mFilename).dir().absolutePath();
        }
        else
        {
                if (mRootPaths.isEmpty())
                        mRootPaths << QFileInfo(mFilename).dir().absolutePath();
        }



        this->refresh();
}

void FileSelectWidget::setNameFilter(QStringList filter)
{
        mNameFilters = filter;
}

void FileSelectWidget::setPath(QString path)
{
        this->setPaths(QStringList() << path);
//      mRootPath = path;
//      //  std::cout << "FileSelectWidget::setPath root" << mRootPath << std::endl;
//      this->refresh();
}

void FileSelectWidget::setPaths(QStringList paths)
{
        mRootPaths = paths;
        this->refresh();
}

void FileSelectWidget::selectData()
{
        QString filter = mNameFilters.join(";;");
        QString folder;
        if (!mRootPaths.isEmpty())
                folder = mRootPaths.front();
        QString filename = QFileDialog::getOpenFileName(this, QString(tr("Select file")), folder, filter);

        if (filename.isEmpty())
                return;

        mFilename = filename;
        //  std::cout << this << " selectData " << mFilename << std::endl;

        this->refresh();
        emit fileSelected(mFilename);
}

QStringList FileSelectWidget::getAllFiles(QString folder, int depth)
{
        QDir dir(folder);
        QStringList files = dir.entryList(mNameFilters, QDir::Files);

        QStringList retval;
        for (int i = 0; i < files.size(); ++i)
        {
                retval << (dir.absolutePath() + "/" + files[i]);
        }
        QStringList folders = dir.entryList(QStringList(), QDir::AllDirs | QDir::NoDotAndDotDot);

        if (depth>0)
        {
                for (int i = 0; i < folders.size(); ++i)
                {
                        files = this->getAllFiles(folder + "/" + folders[i], depth-1);
                        retval.append(files);
                }
        }

        return retval;
}

void FileSelectWidget::refresh()
{
        this->updateComboBox();
}

void FileSelectWidget::updateComboBox()
{
        mDataComboBox->blockSignals(true);
        mDataComboBox->clear();

        QStringList files;
        for (int i=0; i<mRootPaths.size(); ++i)
                files << this->getAllFiles(mRootPaths[i], mFolderDepth);

        for (int i = 0; i < files.size(); ++i)
        {
                mDataComboBox->addItem(QFileInfo(files[i]).fileName(), files[i]);
        }
        mDataComboBox->setCurrentIndex(-1);
        for (int i = 0; i < mDataComboBox->count(); ++i)
        {
                if (mDataComboBox->itemData(i) == mFilename)
                        mDataComboBox->setCurrentIndex(i);
        }

        if (!mFilename.isEmpty() && mDataComboBox->currentIndex() < 0 && !files.contains(mFilename))
        {
                mDataComboBox->addItem(QFileInfo(mFilename).fileName(), mFilename);
                mDataComboBox->setCurrentIndex(mDataComboBox->count() - 1);
        }

        mDataComboBox->setToolTip(mFilename);

        mDataComboBox->blockSignals(false);
}

void FileSelectWidget::currentDataComboIndexChanged(int index)
{
        if (index < 0)
                return;

        mFilename = mDataComboBox->itemData(index).toString();
        emit fileSelected(mFilename);
}

}