Selectable columns in FilesTreeView

Made columns shown in FilesTreeView selectable. Also, the order of
columns is saved and restored.

This was a difficult one. I even had to make a debug build of qt. But I
fixed a serious bug in FilesTreeModel::modeName: don't access the Hash
if modeName == -1.

1 files changed, 11 insertions, 8 deletions

diff --git a/smtreemodel.h b/smtreemodel.h
index 3eae432..73abe64 100644
--- a/smtreemodel.h
+++ b/smtreemodel.h
@@ -10,6 +10,7 @@
 
 #include <QAbstractItemModel>
 #include <QStringList>
+#include <QHash>
 
 class SmTreeItem;
 
@@ -20,17 +21,18 @@ class SmTreeModel : public QAbstractItemModel {
 		virtual ~SmTreeModel();
 
 		// counts
-		int rowCount(const QModelIndex &parent) const;
-		int columnCount(const QModelIndex &parent) const;
+		virtual int rowCount(const QModelIndex &parent) const;
+		virtual int columnCount(const QModelIndex &parent) const;
 
 		// index, parent and flags
-		QModelIndex index(int row, int column, const QModelIndex &parent) const;
-		QModelIndex parent(const QModelIndex &child) const;
+		virtual QModelIndex index(int row, int column, const QModelIndex &parent) const;
+		virtual QModelIndex parent(const QModelIndex &child) const;
 		virtual Qt::ItemFlags flags(const QModelIndex &index) const;
 
 		// headers + data
-		QVariant headerData(int section, Qt::Orientation orientation, int role) const;
-		bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role);
+		virtual QVariant headerData(int section, Qt::Orientation orientation, int role) const;
+		virtual const QHash<QString, int> headerData() const;
+		virtual bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role);
 		virtual QVariant data(const QModelIndex &index, int role) const;
 		virtual bool setData(const QModelIndex &index, const QVariant &value, int role);
 		virtual QModelIndex find(const QVariant &value, int column = 0, const QModelIndex &parent = QModelIndex()) const;
@@ -42,8 +44,8 @@ class SmTreeModel : public QAbstractItemModel {
 		void reparent(const QModelIndex &idx, const QModelIndex &newParent);
 
 		// row manipulation
-		bool insertRows(int row, int count, const QModelIndex &parent);
-		bool removeRows(int row, int count, const QModelIndex &parent);
+		virtual bool insertRows(int row, int count, const QModelIndex &parent);
+		virtual bool removeRows(int row, int count, const QModelIndex &parent);
 		bool addRow(const QList<QVariant> &data, const QModelIndex &parent);
 
 	protected:
@@ -52,6 +54,7 @@ class SmTreeModel : public QAbstractItemModel {
 	private:
 		QStringList mHeaders;
 		SmTreeItem *mRootItem;
+		QHash<QString, int> mHeaderData;
 };
 
 #endif