From bc69429a56524d501e9847e1dd306823f45715fc Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Tue, 6 Aug 2013 14:57:48 +0200
Subject: [PATCH] Added GetTarget() for GALs.

---
 common/gal/cairo/cairo_gal.cpp           | 8 ++++++++
 common/gal/opengl/opengl_gal.cpp         | 8 ++++++++
 include/gal/cairo/cairo_gal.h            | 4 ++++
 include/gal/graphics_abstraction_layer.h | 7 +++++++
 include/gal/opengl/opengl_gal.h          | 4 ++++
 5 files changed, 31 insertions(+)

diff --git a/common/gal/cairo/cairo_gal.cpp b/common/gal/cairo/cairo_gal.cpp
index c7e4f6b8ed..91e614f8fa 100644
--- a/common/gal/cairo/cairo_gal.cpp
+++ b/common/gal/cairo/cairo_gal.cpp
@@ -740,6 +740,14 @@ void CAIRO_GAL::SetTarget( RenderTarget aTarget )
     }
 
     cairo_push_group( currentContext );
+
+    currentTarget = aTarget;
+}
+
+
+RenderTarget CAIRO_GAL::GetTarget() const
+{
+    return currentTarget;
 }
 
 
diff --git a/common/gal/opengl/opengl_gal.cpp b/common/gal/opengl/opengl_gal.cpp
index 358a7add09..9b6b17ff8b 100644
--- a/common/gal/opengl/opengl_gal.cpp
+++ b/common/gal/opengl/opengl_gal.cpp
@@ -700,6 +700,14 @@ void OPENGL_GAL::SetTarget( RenderTarget aTarget )
         currentManager = &overlayManager;
         break;
     }
+
+    currentTarget = aTarget;
+}
+
+
+RenderTarget OPENGL_GAL::GetTarget() const
+{
+    return currentTarget;
 }
 
 
diff --git a/include/gal/cairo/cairo_gal.h b/include/gal/cairo/cairo_gal.h
index 14d4ca9827..818cf0a84a 100644
--- a/include/gal/cairo/cairo_gal.h
+++ b/include/gal/cairo/cairo_gal.h
@@ -218,6 +218,9 @@ public:
     /// @copydoc GAL::SetTarget()
     virtual void SetTarget( RenderTarget aTarget );
 
+    /// @copydoc GAL::GetTarget()
+    virtual RenderTarget GetTarget() const;
+
     // -------
     // Cursor
     // -------
@@ -263,6 +266,7 @@ private:
     boost::shared_ptr<CAIRO_COMPOSITOR> compositor; ///< Object for layers compositing
     unsigned int            mainBuffer;             ///< Handle to the main buffer
     unsigned int            overlayBuffer;          ///< Handle to the overlay buffer
+    RenderTarget            currentTarget;          ///< Current rendering target
 
     // Variables related to wxWidgets
     wxWindow*               parentWindow;           ///< Parent window
diff --git a/include/gal/graphics_abstraction_layer.h b/include/gal/graphics_abstraction_layer.h
index 3aaf93ecad..677cc28ac1 100644
--- a/include/gal/graphics_abstraction_layer.h
+++ b/include/gal/graphics_abstraction_layer.h
@@ -572,6 +572,13 @@ public:
      */
     virtual void SetTarget( RenderTarget aTarget ) = 0;
 
+    /**
+     * @brief Gets the currently used target for rendering.
+     *
+     * @return The current rendering target.
+     */
+    virtual RenderTarget GetTarget() const = 0;
+
     // -------------
     // Grid methods
     // -------------
diff --git a/include/gal/opengl/opengl_gal.h b/include/gal/opengl/opengl_gal.h
index 4291090520..795f1e7622 100644
--- a/include/gal/opengl/opengl_gal.h
+++ b/include/gal/opengl/opengl_gal.h
@@ -211,6 +211,9 @@ public:
     /// @copydoc GAL::SetTarget()
     virtual void SetTarget( RenderTarget aTarget );
 
+    /// @copydoc GAL::GetTarget()
+    virtual RenderTarget GetTarget() const;
+
     // -------
     // Cursor
     // -------
@@ -283,6 +286,7 @@ private:
     OPENGL_COMPOSITOR       compositor;             ///< Handles multiple rendering targets
     unsigned int            mainBuffer;             ///< Main rendering target
     unsigned int            overlayBuffer;          ///< Auxiliary rendering target (for menus etc.)
+    RenderTarget            currentTarget;          ///< Current rendering target
 
     // Shader
     SHADER                  shader;         ///< There is only one shader used for different objects