From c7efd0dd0556319318370b3bf713bcc7978d44f9 Mon Sep 17 00:00:00 2001
From: Andrea <anvil1@fiv.upv.es>
Date: Tue, 5 Feb 2013 01:46:00 +0100
Subject: [PATCH 1/3] Fix Preview for .!qB extended files

---
 src/fs_utils.cpp      | 14 ++++++++++++--
 src/previewselect.cpp |  3 ++-
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/fs_utils.cpp b/src/fs_utils.cpp
index 2e9ecd8a7..69db2e9c4 100644
--- a/src/fs_utils.cpp
+++ b/src/fs_utils.cpp
@@ -81,8 +81,18 @@ QString fsutils::toDisplayPath(const QString& path)
  */
 QString fsutils::fileExtension(const QString &filename)
 {
-  const int point_index = filename.lastIndexOf(".");
-  return (point_index >= 0) ? filename.mid(point_index + 1) : QString();
+  QString holder;
+  int point_index = filename.lastIndexOf(".");
+  if (point_index >= 0) {
+    QString holder = filename.mid(point_index + 1);
+    if (holder == "!qB") {
+      holder = filename.mid(0, point_index);
+      point_index = holder.lastIndexOf(".");
+      holder = (point_index >= 0) ? holder.mid(point_index + 1) : QString();
+    }
+    return holder;
+  }
+  return QString();
 }
 
 QString fsutils::fileName(const QString& file_path)
diff --git a/src/previewselect.cpp b/src/previewselect.cpp
index 5ba887298..c215f5ad5 100644
--- a/src/previewselect.cpp
+++ b/src/previewselect.cpp
@@ -39,6 +39,7 @@
 #include "misc.h"
 #include "previewlistdelegate.h"
 #include "previewselect.h"
+#include "fs_utils.h"
 
 PreviewSelect::PreviewSelect(QWidget* parent, QTorrentHandle h): QDialog(parent), h(h) {
   setupUi(this);
@@ -58,7 +59,7 @@ PreviewSelect::PreviewSelect(QWidget* parent, QTorrentHandle h): QDialog(parent)
   unsigned int nbFiles = h.num_files();
   for (unsigned int i=0; i<nbFiles; ++i) {
     QString fileName = h.filename_at(i);
-    QString extension = fileName.split(QString::fromUtf8(".")).last().toUpper();
+    QString extension = fsutils::fileExtension(fileName).toUpper();
     if (misc::isPreviewable(extension)) {
       int row = previewListModel->rowCount();
       previewListModel->insertRow(row);

From ccd50262c6fdc021e21735d98d5a8fb9e1bbc945 Mon Sep 17 00:00:00 2001
From: Andrea <anvil1@fiv.upv.es>
Date: Tue, 5 Feb 2013 03:44:54 +0100
Subject: [PATCH 2/3] FIX: Redeclared Variable

---
 src/fs_utils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fs_utils.cpp b/src/fs_utils.cpp
index 69db2e9c4..be5e9a67b 100644
--- a/src/fs_utils.cpp
+++ b/src/fs_utils.cpp
@@ -84,7 +84,7 @@ QString fsutils::fileExtension(const QString &filename)
   QString holder;
   int point_index = filename.lastIndexOf(".");
   if (point_index >= 0) {
-    QString holder = filename.mid(point_index + 1);
+    holder = filename.mid(point_index + 1);
     if (holder == "!qB") {
       holder = filename.mid(0, point_index);
       point_index = holder.lastIndexOf(".");

From b6f156b7dd92a3774ce7abdf3678aba0f3a4b4a0 Mon Sep 17 00:00:00 2001
From: Andrea Villa <andreakarimodm@gmail.com>
Date: Sat, 9 Feb 2013 18:55:10 +0100
Subject: [PATCH 3/3] Reverting fs_utils.cpp and fixing callers instead

---
 src/fs_utils.cpp                | 14 ++------------
 src/previewselect.cpp           |  2 ++
 src/qtlibtorrent/qbtsession.cpp |  5 ++++-
 3 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/src/fs_utils.cpp b/src/fs_utils.cpp
index be5e9a67b..2e9ecd8a7 100644
--- a/src/fs_utils.cpp
+++ b/src/fs_utils.cpp
@@ -81,18 +81,8 @@ QString fsutils::toDisplayPath(const QString& path)
  */
 QString fsutils::fileExtension(const QString &filename)
 {
-  QString holder;
-  int point_index = filename.lastIndexOf(".");
-  if (point_index >= 0) {
-    holder = filename.mid(point_index + 1);
-    if (holder == "!qB") {
-      holder = filename.mid(0, point_index);
-      point_index = holder.lastIndexOf(".");
-      holder = (point_index >= 0) ? holder.mid(point_index + 1) : QString();
-    }
-    return holder;
-  }
-  return QString();
+  const int point_index = filename.lastIndexOf(".");
+  return (point_index >= 0) ? filename.mid(point_index + 1) : QString();
 }
 
 QString fsutils::fileName(const QString& file_path)
diff --git a/src/previewselect.cpp b/src/previewselect.cpp
index c215f5ad5..888653ae0 100644
--- a/src/previewselect.cpp
+++ b/src/previewselect.cpp
@@ -59,6 +59,8 @@ PreviewSelect::PreviewSelect(QWidget* parent, QTorrentHandle h): QDialog(parent)
   unsigned int nbFiles = h.num_files();
   for (unsigned int i=0; i<nbFiles; ++i) {
     QString fileName = h.filename_at(i);
+    if (fileName.endsWith(".!qB"))
+      fileName.chop(4);
     QString extension = fsutils::fileExtension(fileName).toUpper();
     if (misc::isPreviewable(extension)) {
       int row = previewListModel->rowCount();
diff --git a/src/qtlibtorrent/qbtsession.cpp b/src/qtlibtorrent/qbtsession.cpp
index 6b163748d..3872c0245 100755
--- a/src/qtlibtorrent/qbtsession.cpp
+++ b/src/qtlibtorrent/qbtsession.cpp
@@ -1731,7 +1731,10 @@ bool QBtSession::isFilePreviewPossible(const QString &hash) const {
   }
   const unsigned int nbFiles = h.num_files();
   for (unsigned int i=0; i<nbFiles; ++i) {
-    const QString extension = fsutils::fileExtension(h.filename_at(i));
+    QString filename = h.filename_at(i);
+    if (filename.endsWith(".!qB"))
+      filename.chop(4);
+    const QString extension = fsutils::fileExtension(filename);
     if (misc::isPreviewable(extension))
       return true;
   }