Add the already selected tilesets to the land when editing.

--HG--
branch : gsoc2014-dfighter

code/studio/src/plugins/tile_editor/land_edit_dialog.cpp

@@ -20,6 +20,17 @@ void LandEditDialog::getSelectedTileSets( QStringList &l ) const
 	}
 }
 
+void LandEditDialog::setSelectedTileSets( QStringList &l )
+{
+	tilesetLV->clear();
+
+	QStringListIterator itr( l );
+	while( itr.hasNext() )
+	{
+		tilesetLV->addItem( itr.next() );
+	}
+}
+
 void LandEditDialog::setTileSets( const QStringList &l )
 {
 	tilesetCB->clear();

code/studio/src/plugins/tile_editor/land_edit_dialog.h

@@ -13,6 +13,8 @@ public:
 	~LandEditDialog();
 
 	void getSelectedTileSets( QStringList &l ) const;
+	void setSelectedTileSets( QStringList &l );
+
 	void setTileSets( const QStringList &l );
 
 private:

code/studio/src/plugins/tile_editor/tile_editor_main_window.cpp

@@ -483,6 +483,7 @@ void TileEditorMainWindow::onLandEdit()
 	Land &l = m_lands[ r ];
 
 	LandEditDialog d;
+	d.setSelectedTileSets( l.tilesets );
 	d.setTileSets( ts );
 	int result = d.exec();