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#include "divepicturemodel.h"
#include "dive.h"
#include "metrics.h"
#include "divelist.h"
#include <QtConcurrent>
typedef QList<struct picture *> SPictureList;
typedef struct picture *picturepointer;
typedef QPair<picturepointer, QImage> SPixmap;
static SPixmap scaleImages(picturepointer picture)
{
static QHash <QString, QImage > cache;
SPixmap ret;
ret.first = picture;
if (cache.contains(picture->filename) && !cache.value(picture->filename).isNull()) {
ret.second = cache.value(picture->filename);
} else {
int dim = defaultIconMetrics().sz_pic;
QImage p = SHashedImage(picture);
if(!p.isNull())
p = p.scaled(dim, dim, Qt::KeepAspectRatio);
cache.insert(picture->filename, p);
ret.second = p;
}
return ret;
}
DivePictureModel *DivePictureModel::instance()
{
static DivePictureModel *self = new DivePictureModel();
return self;
}
DivePictureModel::DivePictureModel() : numberOfPictures(0)
{
}
void DivePictureModel::updateDivePicturesWhenDone(QList<QFuture<void> > futures)
{
Q_FOREACH (QFuture<void> f, futures) {
f.waitForFinished();
}
updateDivePictures();
}
void DivePictureModel::updateDivePictures()
{
if (numberOfPictures != 0) {
beginRemoveRows(QModelIndex(), 0, numberOfPictures - 1);
numberOfPictures = 0;
endRemoveRows();
}
// if the dive_table is empty, ignore the displayed_dive
numberOfPictures = dive_table.nr == 0 ? 0 : dive_get_picture_count(&displayed_dive);
if (numberOfPictures == 0) {
return;
}
stringPixmapCache.clear();
SPictureList pictures;
FOR_EACH_PICTURE_NON_PTR(displayed_dive) {
stringPixmapCache[QString(picture->filename)].offsetSeconds = picture->offset.seconds;
pictures.push_back(picture);
}
QList<SPixmap> list = QtConcurrent::blockingMapped(pictures, scaleImages);
Q_FOREACH (const SPixmap &pixmap, list)
stringPixmapCache[pixmap.first->filename].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((int)stringPixmapCache[key].offsetSeconds);
break;
case Qt::DisplayRole:
ret = key;
}
}
return ret;
}
void DivePictureModel::removePicture(const QString &fileUrl)
{
dive_remove_picture(fileUrl.toUtf8().data());
copy_dive(current_dive, &displayed_dive);
updateDivePictures();
mark_divelist_changed(true);
}
int DivePictureModel::rowCount(const QModelIndex &parent) const
{
return numberOfPictures;
}
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