[Digikam-devel] [digikam] [Bug 326208] When doing a face learning (erase data and rebuild), Database is not erased and grow

[Gilles Caulier]

https://bugs.kde.org/show_bug.cgi?id=326208

--- Comment #3 from Gilles Caulier <caulier.gilles at gmail.com> ---
Git commit f6bcec9d07f0f6530835498370a6042f9b1e1675 by Marcel Wiesweg.
Committed on 14/11/2014 at 09:56.
Pushed by mwiesweg into branch 'master'.

Some fixes in face progress calculation

M  +1    -0    utilities/facemanagement/facepipeline.cpp
M  +2    -0    utilities/facemanagement/facepipeline.h
M  +31   -14   utilities/maintenance/facedetector.cpp

http://commits.kde.org/digikam/f6bcec9d07f0f6530835498370a6042f9b1e1675

diff --git a/utilities/facemanagement/facepipeline.cpp
b/utilities/facemanagement/facepipeline.cpp
index a655385..d512a92 100644
--- a/utilities/facemanagement/facepipeline.cpp
+++ b/utilities/facemanagement/facepipeline.cpp
@@ -1171,6 +1171,7 @@ void
FacePipeline::Private::send(FacePipelineExtendedPackage::Ptr package)
 {
     start();
     ++totalPackagesAdded;
+    emit(q->processing(*package));

     if (senderFlowControl(package))
     {
diff --git a/utilities/facemanagement/facepipeline.h
b/utilities/facemanagement/facepipeline.h
index 4b381ca..45e733a 100644
--- a/utilities/facemanagement/facepipeline.h
+++ b/utilities/facemanagement/facepipeline.h
@@ -292,6 +292,8 @@ Q_SIGNALS:
     /// Emitted when processing has started
     void started(const QString& message);

+    /// Emitted when one package begins processing
+    void processing(const FacePipelinePackage& package);
     /// Emitted when one package has finished processing
     void processed(const FacePipelinePackage& package);
     void progressValueChanged(float progress);
diff --git a/utilities/maintenance/facedetector.cpp
b/utilities/maintenance/facedetector.cpp
index 7bd8c0e..222652b 100644
--- a/utilities/maintenance/facedetector.cpp
+++ b/utilities/maintenance/facedetector.cpp
@@ -96,18 +96,27 @@ class FaceDetector::Private
 public:

     Private()
+        : benchmark(false),
+          total(0),
+          progressValue(0),
+          currentProgressChunk(0),
+          currentScheduled(0),
+          currentFinished(0)
     {
-        benchmark  = false;
-        total      = 0;
     }

-    bool               benchmark;
+    bool                benchmark;

-    int                total;
+    int                 total;

-    AlbumPointerList<> albumTodoList;
-    ImageInfoJob       albumListing;
-    FacePipeline       pipeline;
+    AlbumPointerList<>  albumTodoList;
+    ImageInfoJob        albumListing;
+    FacePipeline        pipeline;
+    QMap<Album*,double> relativeProgressValue;
+    double              progressValue;
+    double              currentProgressChunk;
+    int                 currentScheduled;
+    int                 currentFinished;
 };

 FaceDetector::FaceDetector(const FaceScanSettings& settings, ProgressItem*
const parent)
@@ -275,25 +284,33 @@ void FaceDetector::slotStart()
         QApplication::restoreOverrideCursor();
     }

-    d->total = 0;
-
+    // first, we use the relativeProgressValue map to store absolute counts
     foreach(Album* const album, d->albumTodoList)
     {
         if (album->type() == Album::PHYSICAL)
         {
-            d->total += palbumCounts.value(album->id());
+            d->relativeProgressValue[album] = palbumCounts.value(album->id());
         }
         else
             // this is possibly broken of course because we do not know if
images have multiple tags,
             // but there's no better solution without expensive operation
         {
-            d->total += talbumCounts.value(album->id());
+            d->relativeProgressValue[album] = talbumCounts.value(album->id());
         }
     }
-
-    kDebug() << "Total is" << d->total;
-
+    // second, calculate (approximate) overall sum
+    d->total = 0;
+    foreach (double count, d->relativeProgressValue)
+    {
+        d->total += (int)count;
+    }
     d->total = qMax(1, d->total);
+    kDebug() << "Total is" << d->total;
+    // third, break absolute to relative values
+    for (QMap<Album*,double>::iterator it = d->relativeProgressValue.begin();
it != d->relativeProgressValue.end(); ++it)
+    {
+        it.value() /= double(d->total);
+    }

     setUsesBusyIndicator(false);
     setTotalItems(d->total);

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