/*
  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version
  2 of the License, or (at your option) any later version.
*/

#include <QDesktopWidget>
#include <QApplication>
#include <QGraphicsScene>
#include <QGraphicsPixmapItem>
#include <QGraphicsTextItem>
#include <QGraphicsLineItem>
#include <QFontMetrics>
#include <QImage>
#include <QWheelEvent>
#include <QContextMenuEvent>
#include <QMenu>
#include <QTimer>
#include <QDateTime>
#include <QPainter>
#include <QStyleOptionGraphicsItem>
#include <QGraphicsSceneMouseEvent>
#include <QSettings>
#include <QTextDocument>
#include <QTextCursor>
#include <QFileInfo>
#include <QDir>
#include <QFileInfo>
#include <QFileInfoList>
#include <QFileDialog>
#include <QFile>
#include <QTemporaryFile>
#include <QMessageBox>
#include <QRadioButton>
#include <QGroupBox>
#include <QPushButton>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QLabel>
#include <QGridLayout>

#include <random>
#include <chrono>

#include "pictureviewer2.h"
#include "picfilesmodel.h"
#include "pictureswidget.h"
#include "smglobals.h"
#include "mappingtreemodel.h"
#include "mappingtreewidget.h"
#include "smtreeitem.h"
#include "configurationdialog.h"
#include "newpicsdialog.h"
#include "helper.h"

const QString PictureViewer2::mDefaultFile = ":/picgone.png";

PictureViewer2::PictureViewer2(QWidget *parent) : QGraphicsView(parent), mCur(0), mCurPos(0), mFnItem(0), mMappingItem(0), mShowInfoItem(true), mShowMappingItem(true), mShowMarkItem(false) {
    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    setWindowState(Qt::WindowMaximized);
    mSlideDlg = new PictureViewerSlideDlg(this);
    connect(mSlideDlg, SIGNAL(accepted()), this, SLOT(doSlide()));

    //initial file list
    PicData initialData;
    for(int i = 0; i < PicFilesModel::NumFields; ++i){
        initialData << QVariant();
    }
    initialData[PicFilesModel::FullPath] = mDefaultFile;
    mFiles << initialData;

    //picture show
    mTimer = new QTimer(this);
    connect(mTimer, SIGNAL(timeout()), this, SLOT(nextSlide()));

    //models + dialogs
    mPicFilesModel = static_cast<PicFilesModel*>(SmGlobals::instance()->model("PicFiles"));
    mNewPicsDlg = new NewPicsDialog(this);

    //setup gui
    mScene = new PictureViewerGraphicsScene(this);
    setScene(mScene);
    readSettings();
    setMinimumSize(QSize(800, 600));
    showFile(mFiles.at(mCurPos));
}

void PictureViewer2::addFiles(const PicDataList &files, bool clear){
    if(files.isEmpty()){
        return;
    }
    QVariant curMd5;
    if(!mFiles.isEmpty()){
        curMd5 = mFiles.at(mCurPos).at(PicFilesModel::Md5Sum);
    }
    if(clear){
        mFiles = files;
    }else{
        foreach(const PicData &f, files){
            if(!mFiles.contains(f)){
                mFiles.append(f);
            }
        }
    }
    mCurPos = 0;
    for(int i = 0; i < mFiles.size(); ++i){
        if(curMd5.isValid() && mFiles.at(i).at(PicFilesModel::Md5Sum) == curMd5){
            mCurPos = i;
            break;
        }
    }
    if(mCurPos < mFiles.size()){
        showFile(mFiles.at(mCurPos));
    }else{
        showFile(mFiles.at(0));
    }
}

void PictureViewer2::addFiles(const QStringList &files, bool clear){
    if(files.isEmpty()){
        return;
    }
    PicDataList pd;
    foreach(QString f, files){
        pd << picData(f);
    }
    addFiles(pd, clear);
}

void PictureViewer2::addFiles(const QString &dir, bool clear){
    QFileInfo fi(dir);
    if(!fi.isDir()){
        return;
    }
    PicDataList pd;
    QDir directory = QDir(dir);
    QFileInfoList files = directory.entryInfoList(QDir::Files, QDir::Name);
    foreach(QFileInfo fi, files){
        pd << picData(fi.absoluteFilePath());
    }
    addFiles(pd, clear);
}

void PictureViewer2::setFile(const PicData &file){
    addFiles(PicDataList() << file, true);
    showFile(mFiles.at(mCurPos));
}

void PictureViewer2::setFile(QString fullPath){
    PicData pd = picData(fullPath);
    setFile(pd);
}

void PictureViewer2::setPixmap(const QPixmap &pm){
    //ugly hack, I know....
    QTemporaryFile tf;
    QDataStream stream(&tf);
    stream << pm;
    setFile(tf.fileName());
}

PicData PictureViewer2::picData(const QString &fullPath, int fileId){
    QFileInfo fi(fullPath);
    if(!fi.exists()){
        return PicData();
    }
    PicData retval;
    //fields defined by PicFilesModel::Fields.
    retval << fi.fileName() << fi.size();
    retval << Helper::mimeType(fullPath);
    retval << fi.absoluteFilePath();
    retval << fileId << QDateTime();
    retval << Helper::md5Sum(fullPath);
    QLocale l;
    retval << l.toString(fi.size());
    return retval;
}

void PictureViewer2::next(){
    if(mFiles.size() == 0 || mFiles.size() == 1){
        return;
    }
    if(mCurPos + 1 >= mFiles.size()){
        mCurPos = 0;
    }else{
        ++mCurPos;
    }
    mMarkA->setChecked(mMarkedFiles.contains(mFiles.at(mCurPos)));
    showFile(mFiles.at(mCurPos));
}

void PictureViewer2::previous(){
    if(mFiles.size() == 0 || mFiles.size() == 1){
        return;
    }
    if(mCurPos - 1 < 0){
        mCurPos = mFiles.size() - 1;
    }else{
        --mCurPos;
    }
    mMarkA->setChecked(mMarkedFiles.contains(mFiles.at(mCurPos)));
    showFile(mFiles.at(mCurPos));
}

void PictureViewer2::skip(int amount){
    int next = mCurPos + amount;
    if(next >= mFiles.size()){
        next = next - mFiles.size();
    }
    if(next < 0){
        next = mFiles.size() + next;
    }
    mMarkA->setChecked(mMarkedFiles.contains(mFiles.at(next)));
    showFile(mFiles.at(next));
    mCurPos = next;
}

void PictureViewer2::selectPic(const QString &path){
    for(int i = 0; i < mFiles.size(); ++i){
        // This is the intial data from the constructor.
        // Don't crash trying to access FullPath
        if(mFiles.at(i).isEmpty()){
            continue;
        }
        if(mFiles.at(i).at(PicFilesModel::FullPath) == path){
            mCurPos = i;
            showFile(mFiles.at(mCurPos));
            break;
        }
    }
}

void PictureViewer2::stopSlide(){
    mTimer->stop();
}

void PictureViewer2::startSlide(){
    mTimer->start();
}

void PictureViewer2::readSettings(){
    QSettings s;
    mUseGradient = s.value("ui/pvgradient").toBool();
    QVariant t = s.value("ui/pvbgcolor");
    mBgColor = t.value<QColor>();
    mConfigInfoPos = s.value("ui/infoposition").toInt();
    mInfoPos = s.value("ui/pvinfopos", QPointF(20, 20)).toPointF();
    mConfigMapPos = s.value("ui/mappingposition").toInt();
    mMappingPos = s.value("ui/pvmappingpos", QPointF(20, 20)).toPointF();
    mScene->setSceneRect(QRectF(0, 0, width(), height()));
    mCursorOffset = s.value("ui/cursoroffset").toInt();
    mScene->setCursorOffset(mCursorOffset);
    mArchiveDir = s.value("paths/archivedir").toString();
    showFile(mCurPicData);
    int slideResult = s.value("ui/pvresult", PictureViewerSlideDlg::NoSlide).toInt();
    mSlideDlg->setResult(slideResult);
    int days = s.value("ui/pvdays").toInt();
    mSlideDlg->setDays(days);
    bool shuffle = s.value("ui/pvshuffle").toBool();
    mSlideDlg->setShuffle(shuffle);
    mSlideDlg->mappingEditWidget()->loadMappings("ui/pvmappings");
}

void PictureViewer2::writeSettings(){
    QSettings s;
    if(mFnItem){
        s.setValue("ui/pvinfopos", mFnItem->scenePos());
    }
    s.setValue("ui/pvshuffle", mSlideDlg->shuffle());
    s.setValue("ui/pvdays", mSlideDlg->days());
    s.setValue("ui/pvresult", mSlideDlg->result());
    mSlideDlg->mappingEditWidget()->saveMappings("ui/pvmappings");
}

void PictureViewer2::initActions(){
    foreach(QAction *a, actions()){
        //never, ever forget this when casting to int
        //an invalid QVariant casts to a valid int!
        if(!a->data().isValid()){
            continue;
        }
        if(a->data().toInt() == HideAction){
            mHideA = a;
        }
        if(a->data().toInt() == MarkAction){
            mMarkA = a;
        }
        if(a->data().toInt() == DeleteAction){
            mDeleteA = a;
        }
    }
}

void PictureViewer2::copyCurrent(){
    QString fullPath = mFiles.at(mCurPos).at(PicFilesModel::FullPath).toString();
    QSettings s;
    QString lastDir = s.value("ui/pvlastdir", QDir::homePath()).toString();
    QString destDir = QFileDialog::getExistingDirectory(this, tr("Copy picture"), lastDir);
    if(!destDir.isEmpty()){
        QFileInfo fi(fullPath);
        QString copyTo = QString("%1/%2").arg(destDir).arg(fi.fileName());
        bool success = QFile::copy(fullPath, copyTo);
        if(!success){
            QString msg = QString(tr("File copy %1 -> %2 failed!")).arg(fullPath).arg(copyTo);
            QMessageBox::critical(this, tr("Error"), msg);
        }else{
            s.setValue("ui/pvlastdir", destDir);
        }
    }
}

void PictureViewer2::deleteCurrent(){
    int retval = QMessageBox::question(this, tr("Delete file"), tr("Are you sure?"), QMessageBox::No | QMessageBox::Yes);
    if(retval == QMessageBox::Yes){
        if(mMarkedFiles.contains(mFiles.at(mCurPos))){
            mMarkedFiles.removeAll(mFiles.at(mCurPos));
        }
        QString fullPath = mFiles.at(mCurPos).at(PicFilesModel::FullPath).toString();
        QFile f(fullPath);
        if(f.remove()){
            mFiles.removeAt(mCurPos);
        }
    }
}

void PictureViewer2::showNewPicsDialog(){
    mNewPicsDlg->clearFiles();
    QStringList fileList;
    if(mMarkedFiles.isEmpty()){
        if(!mCurrentDir.isEmpty()){
            QDir d(mCurrentDir);
            foreach(QFileInfo fi, d.entryInfoList()){
                fileList << fi.absoluteFilePath();
            }
        }else{
            return;
        }
    }else{
        foreach(QVariantList v, mMarkedFiles){
            fileList << v.at(PicFilesModel::FullPath).toString();
        }
    }
    mNewPicsDlg->addFiles(fileList);
    mNewPicsDlg->setFocusToMappings();
    mNewPicsDlg->exec();
}

void PictureViewer2::addToNewPics(){
    mNewPicsDlg->setFile(mCurPicData.at(PicFilesModel::FullPath).toString());
    mNewPicsDlg->show();
}

void PictureViewer2::markCurrent(){
    if(!mMarkedFiles.contains(mCurPicData)){
        mMarkedFiles << mCurPicData;
        mMarkA->setChecked(true);
        next();
    }else{
        mMarkedFiles.removeAll(mCurPicData);
        mMarkA->setChecked(false);
    }
    constructInfoItem(mCurPicData, QSize());
}

void PictureViewer2::clearMarks(){
    mMarkedFiles.clear();
    constructInfoItem(mCurPicData, QSize());
}

void PictureViewer2::showSlide(){
    mSlideDlg->show();
}

void PictureViewer2::doSlide(){
    int result = mSlideDlg->result();
    if(result == PictureViewerSlideDlg::NoSlide){
        mTimer->stop();
        return;
    }
    qApp->setOverrideCursor(Qt::BusyCursor);
    mNextSlideCtr = 0;
    if(result == PictureViewerSlideDlg::SlideAll){
        mPicFilesModel->selectFromAll();
    }else if (result == PictureViewerSlideDlg::SlideRecent){
        int days = mSlideDlg->days();
        mPicFilesModel->selectFromRecent(days);
    }else if (result == PictureViewerSlideDlg::SlideSelection){
        MappingEditWidget *editWidget = mSlideDlg->mappingEditWidget();
        QList<QVariant> mappingParentsIds = editWidget->model()->getMappings(editWidget->model()->root());
        mPicFilesModel->selectFromSelection(mappingParentsIds);
    }
    mPicData = mPicFilesModel->allPics();
    if(mSlideDlg->shuffle()){
        unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
        std::shuffle(mPicData.begin(), mPicData.end(), std::default_random_engine(seed));
    }
    auto picDataOld = mPicData;
    mPicData.clear();
    foreach(auto pd, picDataOld){
        QList<QVariant> tmp;
        tmp << Helper::createArchivePath(pd.value(0).toString(), pd.value(1).toString()) << pd.value(2);
        mPicData << tmp;
    }
    mTotal = mPicData.count();
    qApp->restoreOverrideCursor();
    mTimer->start(5000);
}

void PictureViewer2::wheelEvent(QWheelEvent *event){
    int steps = event->delta() / 8 / 15;
    if(steps < 0){
        next();
    }else{
        previous();
    }
}

void PictureViewer2::contextMenuEvent(QContextMenuEvent *e){
    QMenu ctxMenu;
    foreach(QAction *a, actions()){
        ctxMenu.addAction(a);
    }
    ctxMenu.exec(e->globalPos());
}

void PictureViewer2::keyPressEvent(QKeyEvent *e){
    Qt::KeyboardModifiers mod = e->modifiers();
    if(mod & Qt::ControlModifier){
        if(e->key() == Qt::Key_Down || e->key() == Qt::Key_Right){
            skip(25);
        }
        if(e->key() == Qt::Key_Up || e->key() == Qt::Key_Left){
            skip(-25);
        }
        if(e->key() == Qt::Key_Space){
            if(mTimer->isActive()){
                stopSlide();
            }else{
                startSlide();
            }
        }
        return;
    }

    if(e->key() == Qt::Key_Escape){
        stopSlide();
        mHideA->toggle();
    }
    if(e->key() == Qt::Key_Space){
        if(mTimer->isActive()){
            stopSlide();
        }else{
            startSlide();
        }
    }
    if(e->key() == Qt::Key_M){
        markCurrent();
    }

    if((e->key() == Qt::Key_N) || (e->key() == Qt::Key_Down) || (e->key() == Qt::Key_Right)){
        next();
    }
    if((e->key() == Qt::Key_P) || (e->key() == Qt::Key_Up) || (e->key() == Qt::Key_Left)){
        previous();
    }
    if(e->key() == Qt::Key_Delete){
        deleteCurrent();
        next();
    }
    if(e->key() == Qt::Key_PageDown){
        skip(25);
    }
    if(e->key() == Qt::Key_PageUp){
        skip(-25);
    }
    e->accept();
}

void PictureViewer2::showEvent(QShowEvent *e){
    mHideA->setChecked(true);
    QGraphicsView::showEvent(e);
}

void PictureViewer2::hideEvent(QHideEvent *e){
    stopSlide();
    mHideA->setChecked(false);
    QGraphicsView::hideEvent(e);
}

void PictureViewer2::resizeEvent(QResizeEvent *event){
    QGraphicsView::resizeEvent(event);
    showFile(mCurPicData);
}

void PictureViewer2::nextSlide(){
    if(mPicData.isEmpty()){
        return;
    }
    if(mNextSlideCtr < mPicData.count()){
        QString fullPath = mPicData.at(mNextSlideCtr).at(0).toString();
        int fId = mPicData.at(mNextSlideCtr).at(1).toInt();
        PicData pd = picData(fullPath, fId);
        setFile(pd);
        ++mNextSlideCtr;
    }else{
        mNextSlideCtr = 0;
        QString fullPath = mPicData.at(mNextSlideCtr).at(0).toString();
        int fId = mPicData.at(mNextSlideCtr).at(1).toInt();
        PicData pd = picData(fullPath, fId);
        setFile(pd);
        ++mNextSlideCtr;
    }
}

void PictureViewer2::showFile(const PicData &file){
    if(file.isEmpty()){
        return;
    }
    mCurPicData = file;
    bool converted = false;
    QFileInfo fi(file.at(PicFilesModel::FullPath).toString());
    if(!fi.exists()){
        return;
    }
    QPixmap pixmap(file.at(PicFilesModel::FullPath).toString());
    if(pixmap.isNull()){
        if(fi.canonicalFilePath().startsWith(mArchiveDir)){
            mCurPicData = Helper::convertArchivefileToPng(file);
            mFiles[mCurPos] = mCurPicData;
            if(!mCurPicData.isEmpty()){
                pixmap = QPixmap(mCurPicData.at(3).toString());
                converted = true;
            }
        }
        if(pixmap.isNull()){
            pixmap = QPixmap(mDefaultFile);
        }
    }

    if(mUseGradient){
        setGradient(pixmap);
    }else{
        setBackgroundBrush(QBrush(mBgColor));
    }
    if((pixmap.height() > height()) || (pixmap.width() > width())){
        pixmap = pixmap.scaled(QSize(width() - 20, height() - 20), Qt::KeepAspectRatio, Qt::SmoothTransformation);
    }
    if(mCur){
        mScene->removeItem(mCur);
        delete mCur;
        mCur = 0;
    }
    mScene->setSceneRect(rect());
    mCur = new QGraphicsPixmapItem(pixmap);
    mScene->addItem(mCur);
    QRectF picRect = mCur->boundingRect();
    picRect.moveCenter(rect().center());
    mCur->setPos(picRect.topLeft());
    setWindowTitle(constructWindowTitle());
    if(mConfigInfoPos != ConfigurationDialog::NoDisplay && mShowInfoItem){
        constructInfoItem(mCurPicData, pixmap.size(), converted);
    }else{
        if(mFnItem){
            mScene->removeItem(mFnItem);
            delete mFnItem;
            mFnItem = 0;
        }
    }
    if(mConfigMapPos != ConfigurationDialog::NoDisplay && mShowMappingItem){
        constructMappingItem(mCurPicData);
    }else{
        if(mMappingItem){
            mScene->removeItem(mMappingItem);
            delete mMappingItem;
            mMappingItem = 0;
        }
    }
}

void PictureViewer2::constructInfoItem(const PicData &data, QSize picSize, bool converted){
    if(mFnItem){
        mInfoPos = mFnItem->scenePos();
        mScene->removeItem(mFnItem);
        delete mFnItem;
    }
    if(!picSize.isValid()){
        QPixmap pm = QPixmap(data.at(PicFilesModel::FullPath).toString());
        picSize = pm.size();
    }
    mFnItem = new PictureViewer2Item(data, mTotal, mNextSlideCtr, picSize);
    if(mShowMarkItem){
        if(mMarkedFiles.contains(data)){
            mFnItem->appendText("<span style=\"color:green\">marked</span>");
        }else{
            mFnItem->appendText("<span style=\"color:red\">not marked</span>");
        }
    }
    if(converted){
        mFnItem->appendText("<span style=\"color:red\">converted!</span>");
    }
    mFnItem->setPos(getPos(mFnItem, mConfigInfoPos, mInfoPos));
    mScene->addItem(mFnItem);
}

void PictureViewer2::constructMappingItem(const PicData &file){
    SmTreeItem *mapData = mPicFilesModel->mappingTreeFromFile(file.at(PicFilesModel::Id).toInt());
    QTextDocument *doc = new QTextDocument;
    doc->setIndentWidth(2);
    doc->setDocumentMargin(8);
    QTextCursor *cur = new QTextCursor(doc);
    docFromTree(mapData, cur, 0);
    if(mMappingItem){
        mMappingPos = mMappingItem->scenePos();
        mScene->removeItem(mMappingItem);
        delete mMappingItem;
    }
    mMappingItem = new PictureViewer2Item(doc);
    mMappingItem->setPos(getPos(mMappingItem, mConfigMapPos, mMappingPos));
    mScene->addItem(mMappingItem);
    delete mapData;
}

void PictureViewer2::docFromTree(SmTreeItem *start, QTextCursor *cur, int indent){
    if(!start){
        return;
    }
    QChar bullet(0x2640);
    if(indent % 2){
        bullet = QChar(0x2642);
    }
    for(int i = 0; i < start->childCount(); ++i){
        SmTreeItem *child = start->child(i);
        if(!cur->atStart()){
            cur->insertBlock();
        }
        QTextBlockFormat fmt;
        fmt.setIndent(4 * indent);
        cur->setBlockFormat(fmt);
        QString text = QString("%1 %2").arg(bullet).arg(child->data(0).toString());
        cur->insertText(text);
        if(child->childCount()){
            docFromTree(child, cur, indent + 1);
        }
    }
}

void PictureViewer2::setGradient(const QPixmap &pic){
    QPoint val1 = QPoint(qrand() % pic.width(), qrand() % pic.height());
    QPoint val2 = QPoint(qrand() % pic.width(), qrand() % pic.height());
    QImage img = pic.toImage();
    QColor c1(img.pixel(val1));
    QColor c2(img.pixel(val2));
    QLinearGradient g(QPoint(0,0), QPoint(rect().bottomRight()));
    g.setColorAt(0, c1);
    g.setColorAt(1, c2);
    setBackgroundBrush(QBrush(g));
}

QTextDocument *PictureViewer2::treeToString(const SmTreeItem *root) const{
    QTextDocument *retval = new QTextDocument;
    retval->setIndentWidth(2);
    retval->setDocumentMargin(8);
    QTextCursor *cursor = new QTextCursor(retval);
    for(int i = 0; i < root->childCount(); ++i){
        treeToStringRecursive(root->child(i), cursor, 0);
        QTextBlockFormat fmt;
        fmt.setIndent(0);
        cursor->insertBlock(fmt);
    }
    return retval;
}

void PictureViewer2::treeToStringRecursive(const SmTreeItem *parent, QTextCursor *cursor, int indent) const{
    QChar bullet(0x2640);
    if(indent % 2){
        bullet = QChar(0x2642);
    }
    cursor->insertText(QString("%1 %2").arg(bullet).arg(parent->data(0).toString()));
    if(parent->childCount()){
        indent++;
    }
    for(int i = 0; i < parent->childCount(); ++i){
        QTextBlockFormat fmt;
        fmt.setIndent(indent * 5);
        cursor->insertBlock(fmt);
        treeToStringRecursive(parent->child(i), cursor, indent);
    }
}

QPointF PictureViewer2::getPos(QGraphicsItem *item, int pos, const QPointF &movPos){
    QSizeF curSize = size();
    item->setFlags(0);
    if(pos == ConfigurationDialog::TopLeft){
        return QPointF(5, 5);
    }
    int rightOffset = curSize.width() - 15 - item->boundingRect().width();
    int bottomOffset = curSize.height() - 15 - item->boundingRect().height();
    if(pos == ConfigurationDialog::TopRight){
        return QPointF(rightOffset, 5);
    }
    if(pos  == ConfigurationDialog::BottomLeft){
        return QPointF(5, bottomOffset);
    }
    if(pos == ConfigurationDialog::BottomRigth){
        return QPointF(rightOffset, bottomOffset);
    }
    if(pos == ConfigurationDialog::Moveable){
        item->setFlags(QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsMovable);
        return movPos;
    }
    return QPointF(5, 5);
}

QString PictureViewer2::constructWindowTitle() const {
    QString f;
    if(mCurPos < mFiles.size()){
        f = mFiles.at(mCurPos).at(PicFilesModel::FileName).toString();
    }else{
        f = tr("Oh shit...");
    }
    QString retval = QString(tr("PicViewer 2 - [%1]")).arg(f);
    return retval;
}

PictureViewerSlideDlg::PictureViewerSlideDlg(QWidget *parent, Qt::WindowFlags f) : QDialog(parent, f){
    QGroupBox *slideGb = new QGroupBox(tr("Slide"));
    mSlideAll = new QRadioButton(tr("Slide all"));
    connect(mSlideAll, SIGNAL(toggled(bool)), this, SLOT(slideAllToggled(bool)));
    mRecent = new QRadioButton(tr("Slide recent"));
    connect(mRecent, SIGNAL(toggled(bool)), this, SLOT(recentToggled(bool)));
    mSelection = new QRadioButton(tr("Slide selection"));
    connect(mSelection, SIGNAL(toggled(bool)), this, SLOT(slideSelectionToggled(bool)));
    mNoSlide = new QRadioButton(tr("Stop slide"));
    connect(mNoSlide, SIGNAL(toggled(bool)), this, SLOT(noSlideToggled(bool)));
    QVBoxLayout *slideL = new QVBoxLayout;
    slideL->addWidget(mSlideAll);
    slideL->addWidget(mRecent);
    slideL->addWidget(mSelection);
    slideL->addWidget(mNoSlide);
    slideGb->setLayout(slideL);
    QGroupBox *miscGb = new QGroupBox(tr("Misc."));
    mRecentDays = new QSpinBox;
    mRecentDays->setMinimum(1);
    mRecentDays->setPrefix(tr("Slide last "));
    mRecentDays->setSuffix(tr(" days"));
    mShuffle = new QCheckBox(tr("Shuffle"));
    QVBoxLayout *miscL = new QVBoxLayout;
    miscL->addWidget(mRecentDays);
    miscL->addWidget(mShuffle);
    miscL->addStretch();
    miscGb->setLayout(miscL);
    mMappingEditWidget = new MappingEditWidget;
    QGroupBox *selectionGb = new QGroupBox(tr("Selection"));
    QVBoxLayout *selectionL = new QVBoxLayout;
    selectionL->addWidget(mMappingEditWidget);
    selectionGb->setLayout(selectionL);
    mOk = new QPushButton(tr("Ok"));
    connect(mOk, SIGNAL(clicked()), this, SLOT(accept()));
    mCancel = new QPushButton(tr("Cancel"));
    connect(mCancel, SIGNAL(clicked()), this, SLOT(reject()));
    QHBoxLayout *buttonL = new QHBoxLayout;
    buttonL->addStretch();
    buttonL->addWidget(mOk);
    buttonL->addWidget(mCancel);

    QGridLayout *mainL = new QGridLayout;
    mainL->addWidget(slideGb, 0, 0);
    mainL->addWidget(miscGb, 0, 1);
    mainL->addWidget(selectionGb, 1, 0, 1, 2);
    mainL->addLayout(buttonL, 2, 0, 1, 2);
    setLayout(mainL);

    mNoSlide->setChecked(true);
}

void PictureViewerSlideDlg::setResult(int result){
    if(result == SlideAll){
        mSlideAll->setChecked(true);
    }else if(result == SlideRecent){
        mRecent->setChecked(true);
    }else if(result == SlideSelection){
        mSelection->setChecked(true);
    }else if(result == NoSlide){
        mNoSlide->setChecked(true);
    }
}

void PictureViewerSlideDlg::slideAllToggled(bool checked){
    if(checked){
        mRecentDays->setEnabled(false);
        mMappingEditWidget->setEnabled(false);
        mSlideResult = SlideAll;
    }
}

void PictureViewerSlideDlg::slideSelectionToggled(bool checked){
    if(checked){
        mRecentDays->setEnabled(false);
        mMappingEditWidget->setEnabled(true);
        mSlideResult = SlideSelection;
    }
}

void PictureViewerSlideDlg::recentToggled(bool checked){
    if(checked){
        mRecentDays->setEnabled(true);
        mMappingEditWidget->setEnabled(false);
        mSlideResult = SlideRecent;
    }
}

void PictureViewerSlideDlg::noSlideToggled(bool checked){
    if(checked){
        mRecentDays->setEnabled(false);
        mMappingEditWidget->setEnabled(false);
        mSlideResult = NoSlide;
    }
}

PictureViewer2Item::PictureViewer2Item(const PicData &data, const int numSelected, int cur, const QSize &picSize, QGraphicsItem *parent) : QGraphicsItem(parent), mDoc(0){
    //prevent QStaticText from wrapping filesnames with spaces
    //we shouldn't allow this in the first place
    mTextList << data.at(PicFilesModel::FileName).toString().replace(' ', '_');
    mTextList << QString("%1x%2").arg(QString::number(picSize.width())).arg(QString::number(picSize.height()));
    QLocale l;
    mTextList << QString(QObject::tr("%1 bytes")).arg(l.toString(data.at(PicFilesModel::Size).toInt()));
    mTextList << l.toString(data.at(PicFilesModel::Added).toDate());
    mTextList << data.at(PicFilesModel::MimeType).toString();
    mTextList << QString(QObject::tr("%1/%2 files")).arg(QString::number(cur + 1)).arg(QString::number(numSelected));
    setZValue(1);
}

PictureViewer2Item::PictureViewer2Item(QTextDocument *doc, QGraphicsItem *parent) : QGraphicsItem(parent), mDoc(doc){
    setZValue(1);
}

PictureViewer2Item::~PictureViewer2Item(){
    delete mDoc;
}

QRectF PictureViewer2Item::boundingRect() const {
    QSizeF size;
    if(mDoc){
        size = mDoc->size();
    }else{
        QStaticText text = QStaticText(mTextList.join("<br/>"));
        size = text.size();
        size += QSize(10, 10);
    }
    QRectF retval;
    retval.setWidth(size.width());
    retval.setHeight(size.height());
    return retval;
}

void PictureViewer2Item::appendText(const QString &text){
    mTextList << text;
}

void PictureViewer2Item::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget){
    Q_UNUSED(option);
    Q_UNUSED(widget);
    painter->save();
    painter->setRenderHint(QPainter::Antialiasing, true);
    painter->setRenderHint(QPainter::TextAntialiasing, true);
    QColor bgColor = QColor(Qt::white);
    bgColor.setAlpha(80);
    QColor fgColor = QColor(Qt::black);
    QBrush brush(bgColor);
    painter->setPen(QColor(Qt::yellow));
    painter->setBrush(brush);
    painter->drawRoundedRect(boundingRect(), 15.0, 15.0);
    painter->setPen(QPen(fgColor));
    if(mDoc){
        mDoc->drawContents(painter);
    }else{
        QStaticText text = QStaticText(mTextList.join("<br/>"));
        painter->drawStaticText(5, 5, text);
    }
    painter->restore();
}

void PictureViewerGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *e){
    QGraphicsScene::mousePressEvent(e);
    QPointF curPos = e->scenePos();
    curPos = QPointF(e->scenePos().x(), e->scenePos().y() - 16);
    QGraphicsItem *item = itemAt(curPos, QTransform());
    if(item){
        emit itemClicked(item);
    }
}