Dive video: paint duration-bar above thumbnail in profile plot

Paint a rectangle on top of thumbnails indicating the run-time
of the video.

Use the z=100.0-101.0 range for painting the thumbnails, whereby
the z-value increases uniformly from first to last thumbnail
(sorted by timestamp). The duration-bars are placed at z-values
midway between those of the thumbnails.

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

1 files changed, 4 insertions, 4 deletions

diff --git a/core/imagedownloader.h b/core/imagedownloader.h
index dcdf08d20..cab945e5f 100644
--- a/core/imagedownloader.h
+++ b/core/imagedownloader.h
@@ -47,7 +47,7 @@ public slots:
 	void imageDownloaded(QString filename);
 	void imageDownloadFailed(QString filename);
 signals:
-	void thumbnailChanged(QString filename, QImage thumbnail);
+	void thumbnailChanged(QString filename, QImage thumbnail, duration_t duration);
 private:
 	struct Thumbnail {
 		QImage img;
@@ -56,9 +56,9 @@ private:
 	};
 
 	Thumbnailer();
-	static void addPictureThumbnailToCache(const QString &picture_filename, const QImage &thumbnail);
-	static void addVideoThumbnailToCache(const QString &picture_filename, duration_t duration);
-	static void addUnknownThumbnailToCache(const QString &picture_filename);
+	Thumbnail addPictureThumbnailToCache(const QString &picture_filename, const QImage &thumbnail);
+	Thumbnail addVideoThumbnailToCache(const QString &picture_filename, duration_t duration);
+	Thumbnail addUnknownThumbnailToCache(const QString &picture_filename);
 	void recalculate(QString filename);
 	void processItem(QString filename, bool tryDownload);
 	Thumbnail getThumbnailFromCache(const QString &picture_filename);