Automatically convert invalid jpg pics

Well, seems that's Qt's ImageReader got pickier regarding jpeg-files. If
the resulting QPixmap is null and void, try to convert them to png.

This introduces a new dependency to ImageMagic++. I don't like it, but
it works, kinda... I saw random crashes while testing...

1 files changed, 11 insertions, 3 deletions

diff --git a/pictureviewer2.cpp b/pictureviewer2.cpp
index fcdf4b7..7033a52 100644
--- a/pictureviewer2.cpp
+++ b/pictureviewer2.cpp
@@ -418,7 +418,15 @@ void PictureViewer2::showFile(const PicData &file){
     mCurPicData = file;
     QPixmap pixmap(file.at(PicFilesModel::FullPath).toString());
     if(pixmap.isNull()){
-        pixmap = QPixmap(mDefaultFile);
+        mCurPicData = Helper::convertToPng(file);
+        mFiles[mCurPos] = mCurPicData;
+        if(mCurPicData.isEmpty()){
+            return;
+        }
+        pixmap = QPixmap(mCurPicData.at(3).toString());
+        if(pixmap.isNull()){
+            pixmap = QPixmap(mDefaultFile);
+        }
     }
     if(mUseGradient){
         setGradient(pixmap);
@@ -441,7 +449,7 @@ void PictureViewer2::showFile(const PicData &file){
     mCur->setPos(picRect.topLeft());
     setWindowTitle(constructWindowTitle());
     if(mConfigInfoPos != ConfigurationDialog::NoDisplay && mShowInfoItem){
-        constructInfoItem(file, pixmap.size());
+        constructInfoItem(mCurPicData, pixmap.size());
     }else{
         if(mFnItem){
             mScene->removeItem(mFnItem);
@@ -450,7 +458,7 @@ void PictureViewer2::showFile(const PicData &file){
         }
     }
     if(mConfigMapPos != ConfigurationDialog::NoDisplay && mShowMappingItem){
-        constructMappingItem(file);
+        constructMappingItem(mCurPicData);
     }else{
         if(mMappingItem){
             mScene->removeItem(mMappingItem);