Dive pictures: Update pictures when thumbnails are ready

Connect the thumbnailer signal to the dive picture model slot.
This needs some code-reshuffling in the dive picture model.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

2 files changed, 13 insertions, 0 deletions

diff --git a/qt-models/divepicturemodel.cpp b/qt-models/divepicturemodel.cpp
index 53e631e17..c5453c3a9 100644
--- a/qt-models/divepicturemodel.cpp
+++ b/qt-models/divepicturemodel.cpp
@@ -21,6 +21,8 @@ DivePictureModel::DivePictureModel() : rowDDStart(0),
 				       zoomLevel(0.0),
 				       defaultSize(defaultIconMetrics().sz_pic)
 {
+	connect(Thumbnailer::instance(), &Thumbnailer::thumbnailChanged,
+		this, &DivePictureModel::updateThumbnail, Qt::QueuedConnection);
 }
 
 void DivePictureModel::updateDivePicturesWhenDone(QList<QFuture<void>> futures)
@@ -160,3 +162,13 @@ int DivePictureModel::rowCount(const QModelIndex &parent) const
 	Q_UNUSED(parent);
 	return pictures.count();
 }
+
+void DivePictureModel::updateThumbnail(QString filename, QImage thumbnail)
+{
+	for (int i = 0; i < pictures.size(); ++i) {
+		if (pictures[i].filename != filename)
+			continue;
+		pictures[i].image = thumbnail;
+		emit dataChanged(createIndex(i, 0), createIndex(i, 1));
+	}
+}
diff --git a/qt-models/divepicturemodel.h b/qt-models/divepicturemodel.h
index 443be4a0e..0839630bd 100644
--- a/qt-models/divepicturemodel.h
+++ b/qt-models/divepicturemodel.h
@@ -26,6 +26,7 @@ public:
 	int rowDDStart, rowDDEnd;
 public slots:
 	void setZoomLevel(int level);
+	void updateThumbnail(QString filename, QImage thumbnail);
 private:
 	DivePictureModel();
 	QList<PictureEntry> pictures;