source tree cleanup

The lib/ directory was getting a bit out of hand, so this tries
to organize things a bit so it is easier going forward to locate
the code people want to patch.

lib/widgets/sp-process-model-row.h

@@ -0,0 +1,48 @@
+/* sp-process-model-row.h
+ *
+ * Copyright (C) 2016 Christian Hergert <christian@hergert.me>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SP_PROCESS_MODEL_ROW_H
+#define SP_PROCESS_MODEL_ROW_H
+
+#include <gtk/gtk.h>
+
+#include "util/sp-process-model-item.h"
+
+G_BEGIN_DECLS
+
+#define SP_TYPE_PROCESS_MODEL_ROW (sp_process_model_row_get_type())
+
+G_DECLARE_DERIVABLE_TYPE (SpProcessModelRow, sp_process_model_row, SP, PROCESS_MODEL_ROW, GtkListBoxRow)
+
+struct _SpProcessModelRowClass
+{
+  GtkListBoxRowClass parent;
+
+  gpointer padding[4];
+};
+
+GtkWidget          *sp_process_model_row_new          (SpProcessModelItem *item);
+SpProcessModelItem *sp_process_model_row_get_item     (SpProcessModelRow  *self);
+gboolean            sp_process_model_row_get_selected (SpProcessModelRow  *self);
+void                sp_process_model_row_set_selected (SpProcessModelRow  *self,
+                                                       gboolean            selected);
+
+G_END_DECLS
+
+#endif /* SP_PROCESS_MODEL_ROW_H */
+