Implement slide through all pictures

Wow, that was much more complicated than I first thought, but it seems
to work. Maybe it's much more convoluted than it has to be :)

1 files changed, 28 insertions, 0 deletions

diff --git a/picfilesmodel.cpp b/picfilesmodel.cpp
index dfe0f2d..3eff4cb 100644
--- a/picfilesmodel.cpp
+++ b/picfilesmodel.cpp
@@ -296,6 +296,34 @@ QList<int> PicFilesModel::mappingPIdsFromFiles(QList<int> fileIds) const{
     return retval;
 }
 
+void PicFilesModel::allPicIds(){
+    mAllPics.clear();
+    mCurrentBatch = 0;
+    QSqlQuery q("SELECT tfilename, cmd5sum, ipicsid FROM pics ORDER BY random()", mDb);
+    while(q.next()){
+        QList<QVariant> cur;
+        cur << q.value(0) << q.value(1) << q.value(2);
+        mAllPics << cur;
+    }
+}
+
+QList<QList<QVariant> > PicFilesModel::getNextBatch(){
+    if(mCurrentBatch * 100 >= mAllPics.count()){
+        mCurrentBatch = 0;
+    }
+    int start = mCurrentBatch * 100;
+    QList<QList<QVariant> > res = mAllPics.mid(start, 100);
+    QList<QList<QVariant> > retval;
+    for(QList<QList<QVariant> >::const_iterator it = res.constBegin(); it != res.constEnd(); ++it){
+        QList<QVariant> c = *it;
+        QList<QVariant> item;
+        item << Helper::createArchivePath(c.value(0).toString(), c.value(1).toString()) << c.value(2);
+        retval << item;
+    }
+    ++mCurrentBatch;
+    return retval;
+}
+
 void PicFilesModel::populate(){
     SmTreeItem *root = new SmTreeItem(NumFields);
     QStringList idList;