Usability fix

* repair shortcuts for adding files to NewPicsDialog and showing it from
PictureViewer2
* Replace files in NewPicsDialog instead of adding them
* add missing header to MappingTreeModel

1 files changed, 1 insertions, 0 deletions

diff --git a/newpicsdialog.h b/newpicsdialog.h
index 3f8a87b..f706ee8 100644
--- a/newpicsdialog.h
+++ b/newpicsdialog.h
@@ -31,6 +31,7 @@ class NewPicsDialog : public QDialog {
         void selectFiles();
         void removeFiles();
         void addFiles(const QStringList &files);
+        void setFile(const QString &file);
         void clearFiles();
         void accept();