Add DiveSitePicturesModel

This model should be used inside the Edit Dive Site mode.
It should display all photos from all dives that are part
of this dive site, ignoring trips.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-models/divesitepicturesmodel.cpp

@@ -0,0 +1,45 @@
+#include "divesitepicturesmodel.h"
+#include "dive.h"
+#include "stdint.h"
+
+#include <QtConcurrent>
+#include <QPixmap>
+
+DiveSitePicturesModel* DiveSitePicturesModel::instance() {
+	static DiveSitePicturesModel *self = new DiveSitePicturesModel();
+	return self;
+}
+
+DiveSitePicturesModel::DiveSitePicturesModel() {
+
+}
+
+void DiveSitePicturesModel::updateDivePictures() {
+	beginResetModel();
+	numberOfPictures = 0;
+	endResetModel();
+
+	const uint32_t ds_uuid = displayed_dive_site.uuid;
+	struct dive *d;
+	int i;
+
+	stringPixmapCache.clear();
+	SPictureList pictures;
+
+	for_each_dive (i, d) {
+		if (d->dive_site_uuid == ds_uuid && dive_get_picture_count(d)) {
+			FOR_EACH_PICTURE(d) {
+				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;
+
+	numberOfPictures = list.count();
+	beginInsertRows(QModelIndex(), 0, numberOfPictures - 1);
+	endInsertRows();
+}