Add `SelPrevSurfaceCmd`

src/Commands/SelPrevSurfaceCmd.cpp

@@ -0,0 +1,23 @@
+#include "SelPrevSurfaceCmd.h"
+
+namespace ofx {
+namespace piMapper {
+
+SelPrevSurfaceCmd::SelPrevSurfaceCmd(SurfaceManager * surfaceManager){
+	_surfaceManager = surfaceManager;
+}
+
+void SelPrevSurfaceCmd::exec(){
+	_prevSelectedSurface = _surfaceManager->getSelectedSurface();
+	_surfaceManager->selectPrevSurface();
+}
+
+void SelPrevSurfaceCmd::undo(){
+	ofLogNotice("SelPrevSurfaceCmd", "undo");
+	_surfaceManager->selectSurface(_prevSelectedSurface);
+	_prevSelectedSurface = 0;
+}
+
+} // namespace piMapper
+} // namespace ofx
+

src/Commands/SelPrevSurfaceCmd.h

@@ -0,0 +1,29 @@
+// SelPrevSurfaceCmd
+// Selects previous surface in the projection mapping mode
+// Created by Krisjanis Rijnieks 2016-02-03
+
+#pragma once
+
+#include "BaseCmd.h"
+#include "BaseSurface.h"
+#include "SurfaceManager.h"
+
+namespace ofx {
+namespace piMapper {
+
+class SelPrevSurfaceCmd : public BaseUndoCmd {
+
+	public:
+		SelPrevSurfaceCmd(SurfaceManager * surfaceManager);
+		void exec();
+		void undo();
+
+	private:
+		SurfaceManager * _surfaceManager;
+		BaseSurface * _prevSelectedSurface;
+
+};
+
+} // namespace piMapper
+} // namespace ofx
+