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, 8 insertions, 0 deletions

diff --git a/newpicsdialog.cpp b/newpicsdialog.cpp
index 5f4009b..2d56ddc 100644
--- a/newpicsdialog.cpp
+++ b/newpicsdialog.cpp
@@ -97,6 +97,14 @@ void NewPicsDialog::addFiles(const QStringList &files){
     }
 }
 
+void NewPicsDialog::setFile(const QString &file){
+    clearFiles();
+    mFilesModel->addFile(file);
+    for(int i = 0; i < NewPicFilesModel::NumFields; ++i){
+        mFilesV->resizeColumnToContents(i);
+    }
+}
+
 void NewPicsDialog::clearFiles(){
     mFilesV->setSortingEnabled(false);
     SmTreeItem *rootItem = new SmTreeItem(NewPicFilesModel::NumFields);