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#include "divepicturewidget.h"
#include <dive.h>
#include <QtConcurrentMap>
#include <QDir>
#include <QHash>
DivePictureModel *DivePictureModel::instance()
{
static DivePictureModel *self = new DivePictureModel();
return self;
}
DivePictureModel::DivePictureModel() : numberOfPictures(0)
{
}
typedef QPair<QString, QImage> SPixmap;
typedef QList<SPixmap> SPixmapList;
SPixmap scaleImages(const QString &s)
{
static QHash <QString, QImage > cache;
SPixmap ret;
ret.first = s;
if (cache.contains(s)) {
ret.second = cache.value(s);
} else {
QImage p = QImage(s).scaled(128, 128, Qt::KeepAspectRatio);
cache.insert(s, p);
ret.second = p;
}
return ret;
}
void DivePictureModel::updateDivePictures()
{
if (numberOfPictures != 0) {
beginRemoveRows(QModelIndex(), 0, numberOfPictures - 1);
numberOfPictures = 0;
endRemoveRows();
}
numberOfPictures = dive_get_picture_count(&displayed_dive);
if (numberOfPictures == 0) {
return;
}
stringPixmapCache.clear();
QStringList pictures;
FOR_EACH_PICTURE (&displayed_dive) {
stringPixmapCache[QString(picture->filename)].picture = picture;
pictures.push_back(QString(picture->filename));
}
SPixmapList retList = QtConcurrent::blockingMapped<SPixmapList>(pictures, scaleImages);
Q_FOREACH (const SPixmap &pixmap, retList)
stringPixmapCache[pixmap.first].image = pixmap.second;
beginInsertRows(QModelIndex(), 0, numberOfPictures - 1);
endInsertRows();
}
int DivePictureModel::columnCount(const QModelIndex &parent) const
{
return 2;
}
QVariant DivePictureModel::data(const QModelIndex &index, int role) const
{
QVariant ret;
if (!index.isValid())
return ret;
QString key = stringPixmapCache.keys().at(index.row());
if (index.column() == 0) {
switch (role) {
case Qt::ToolTipRole:
ret = key;
break;
case Qt::DecorationRole:
ret = stringPixmapCache[key].image;
break;
case Qt::DisplayRole:
ret = QFileInfo(key).fileName();
break;
case Qt::DisplayPropertyRole:
ret = QFileInfo(key).filePath();
}
} else if (index.column() == 1) {
switch (role) {
case Qt::UserRole:
ret = QVariant::fromValue((void *)stringPixmapCache[key].picture);
}
}
return ret;
}
int DivePictureModel::rowCount(const QModelIndex &parent) const
{
return numberOfPictures;
}
DivePictureWidget::DivePictureWidget(QWidget *parent) : QListView(parent)
{
connect(this, SIGNAL(doubleClicked(const QModelIndex &)), this, SLOT(doubleClicked(const QModelIndex &)));
}
void DivePictureWidget::doubleClicked(const QModelIndex &index)
{
QString filePath = model()->data(index, Qt::DisplayPropertyRole).toString();
emit photoDoubleClicked(filePath);
}
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