Fix convert to PNG mess

Automatically converting a damaged file to PNG and updating the archive
is fine as long as we're *in* the archive, but it totally messes things
up if we're browsing the file system.

So check if the image is in the archive path, and only then consider
auto-converting it. Also show a notice in the InfoItem if the file has
been converted.

4 files changed, 19 insertions, 10 deletions

diff --git a/helper.cpp b/helper.cpp
index dd6bedf..b913f65 100644
--- a/helper.cpp
+++ b/helper.cpp
@@ -314,7 +314,7 @@ namespace Helper {
         return retval;
     }
 
-    PicData convertToPng(PicData data){
+    PicData convertArchivefileToPng(PicData data){
         if(data.at(2) != "image/jpeg"){
             return PicData();
         }
diff --git a/helper.h b/helper.h
index cdfcd88..434ba0d 100644
--- a/helper.h
+++ b/helper.h
@@ -48,7 +48,7 @@ namespace Helper {
     QPixmap preview(const QString &path);
     QImage snapshot(const QString &path, int where);
     QVariant picSize(const QString &path);
-    PicData convertToPng(PicData data);
+    PicData convertArchivefileToPng(PicData data);
     class Duration {
         public:
             Duration();
diff --git a/pictureviewer2.cpp b/pictureviewer2.cpp
index a722bbb..189cf80 100644
--- a/pictureviewer2.cpp
+++ b/pictureviewer2.cpp
@@ -344,6 +344,7 @@ void PictureViewer2::readSettings(){
     mScene->setSceneRect(QRectF(0, 0, width(), height()));
     mCursorOffset = s.value("ui/cursoroffset").toInt();
     mScene->setCursorOffset(mCursorOffset);
+    mArchiveDir = s.value("paths/archivedir").toString();
     showFile(mCurPicData);
 }
 
@@ -578,22 +579,26 @@ void PictureViewer2::showFile(const PicData &file){
         return;
     }
     mCurPicData = file;
+    bool converted = false;
     QFileInfo fi(file.at(PicFilesModel::FullPath).toString());
     if(!fi.exists()){
         return;
     }
     QPixmap pixmap(file.at(PicFilesModel::FullPath).toString());
     if(pixmap.isNull()){
-        mCurPicData = Helper::convertToPng(file);
-        mFiles[mCurPos] = mCurPicData;
-        if(mCurPicData.isEmpty()){
-            return;
+        if(fi.canonicalFilePath().startsWith(mArchiveDir)){
+            mCurPicData = Helper::convertArchivefileToPng(file);
+            mFiles[mCurPos] = mCurPicData;
+            if(!mCurPicData.isEmpty()){
+                pixmap = QPixmap(mCurPicData.at(3).toString());
+                converted = true;
+            }
         }
-        pixmap = QPixmap(mCurPicData.at(3).toString());
         if(pixmap.isNull()){
             pixmap = QPixmap(mDefaultFile);
         }
     }
+
     if(mUseGradient){
         setGradient(pixmap);
     }else{
@@ -615,7 +620,7 @@ void PictureViewer2::showFile(const PicData &file){
     mCur->setPos(picRect.topLeft());
     setWindowTitle(constructWindowTitle());
     if(mConfigInfoPos != ConfigurationDialog::NoDisplay && mShowInfoItem){
-        constructInfoItem(mCurPicData, pixmap.size());
+        constructInfoItem(mCurPicData, pixmap.size(), converted);
     }else{
         if(mFnItem){
             mScene->removeItem(mFnItem);
@@ -634,7 +639,7 @@ void PictureViewer2::showFile(const PicData &file){
     }
 }
 
-void PictureViewer2::constructInfoItem(const PicData &data, QSize picSize){
+void PictureViewer2::constructInfoItem(const PicData &data, QSize picSize, bool converted){
     if(mFnItem){
         mInfoPos = mFnItem->scenePos();
         mScene->removeItem(mFnItem);
@@ -652,6 +657,9 @@ void PictureViewer2::constructInfoItem(const PicData &data, QSize picSize){
             mFnItem->appendText("<span style=\"color:red\">not marked</span>");
         }
     }
+    if(converted){
+        mFnItem->appendText("<span style=\"color:red\">converted!</span>");
+    }
     mFnItem->setPos(getPos(mFnItem, mConfigInfoPos, mInfoPos));
     mScene->addItem(mFnItem);
 }
diff --git a/pictureviewer2.h b/pictureviewer2.h
index 63b020d..f0c5e71 100644
--- a/pictureviewer2.h
+++ b/pictureviewer2.h
@@ -87,7 +87,7 @@ class PictureViewer2 : public QGraphicsView {
 
     private slots:
         void showFile(const PicData &data);
-        void constructInfoItem(const PicData &file, QSize picSize);
+        void constructInfoItem(const PicData &file, QSize picSize, bool converted = false);
         void constructMappingItem(const PicData &file);
         void docFromTree(SmTreeItem *start, QTextCursor *cur, int indent);
         void nextFromAll();
@@ -146,6 +146,7 @@ class PictureViewer2 : public QGraphicsView {
         bool mShowMarkItem;
         bool mShuffle;
         QString mCurrentDir;
+        QString mArchiveDir;
 };
 
 class PictureViewer2Item : public QGraphicsItem {