Fix Video sorting

Show directories in FileWidget and always put ".." first, then the
directories by creating a new QSortFilterProxyModel.

For this the file attribute is needed for every column, so use
QList<QStandardItem*> instead of individual QStandardItem*s.

Use enums to access columns.

1 files changed, 29 insertions, 0 deletions

diff --git a/filesorter.cpp b/filesorter.cpp
index a87ac6f..b155a7c 100644
--- a/filesorter.cpp
+++ b/filesorter.cpp
@@ -1,4 +1,5 @@
 #include "filesorter.h"
+#include "filewidget.h"
 
 FileSorter::FileSorter(QObject *parent) : QSortFilterProxyModel(parent) {}
 
@@ -10,3 +11,31 @@ bool FileSorter::lessThan(const QModelIndex &source_left, const QModelIndex &sou
     }
     return QSortFilterProxyModel::lessThan(source_left, source_right);
 }
+
+VideoSorter::VideoSorter(QObject *parent) : QSortFilterProxyModel(parent) {}
+
+bool VideoSorter::lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const {
+    int leftData = sourceModel()->data(source_left, Qt::UserRole + 1).toInt();
+    int rightData = sourceModel()->data(source_right, Qt::UserRole + 1).toInt();
+
+    //always Sort DotDot first
+    if(leftData == FileWidget::ParentDir && rightData != FileWidget::ParentDir){
+        return sortOrder() == Qt::AscendingOrder;
+    }else if(leftData != FileWidget::ParentDir && rightData == FileWidget::ParentDir){
+        return sortOrder() != Qt::AscendingOrder;
+    }
+
+    //followed by directories
+    if(leftData == FileWidget::Directory && rightData != FileWidget::Directory){
+        return sortOrder() == Qt::AscendingOrder;
+    }else if(leftData != FileWidget::Directory && rightData == FileWidget::Directory){
+        return sortOrder() != Qt::AscendingOrder;
+    }
+
+    //now check if we're sorting IconRow
+    if(source_left.column() == FileWidget::IconRow){
+        return leftData < rightData;
+    }
+
+    return QSortFilterProxyModel::lessThan(source_left, source_right);
+}