1 files changed, 71 insertions, 0 deletions
diff --git a/canvas/source/opengl/ogl_bitmapcanvashelper.hxx b/canvas/source/opengl/ogl_bitmapcanvashelper.hxx
new file mode 100644
index 0000000000..5bdb9713d2
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+++ b/canvas/source/opengl/ogl_bitmapcanvashelper.hxx
@@ -0,0 +1,71 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <com/sun/star/geometry/IntegerPoint2D.hpp>
+#include <com/sun/star/geometry/IntegerRectangle2D.hpp>
+#include <com/sun/star/rendering/IntegerBitmapLayout.hpp>
+
+#include "ogl_canvashelper.hxx"
+
+namespace oglcanvas
+{
+    /** Helper class for basic canvas functionality. */
+    class BitmapCanvasHelper : public CanvasHelper
+    {
+    public:
+        BitmapCanvasHelper();
+
+        /// Release all references
+        void disposing();
+
+        /** Initialize canvas helper
+
+            This method late-initializes the canvas helper, providing
+            it with the necessary device and output objects. Note that
+            the CanvasHelper does <em>not</em> take ownership of the
+            passed rDevice reference, nor does it perform any
+            reference counting. Thus, to prevent the reference counted
+            SpriteCanvas object from deletion, the user of this class
+            is responsible for holding ref-counted references itself!
+
+            @param rDevice
+            Reference device this canvas is associated with
+
+         */
+        void init( css::rendering::XGraphicDevice&     rDevice,
+                   SpriteDeviceHelper&                              rDeviceHelper,
+                   const css::geometry::IntegerSize2D& rSize );
+
+        // BitmapCanvasHelper functionality
+        // ================================
+
+        const css::geometry::IntegerSize2D& getSize() const { return maSize; }
+
+        css::uno::Reference< css::rendering::XBitmap >
+            getScaledBitmap( const css::geometry::RealSize2D&  newSize,
+                             bool                                               beFast );
+
+        css::uno::Sequence< sal_Int8 >
+            getData( css::rendering::IntegerBitmapLayout&      bitmapLayout,
+                     const css::geometry::IntegerRectangle2D&  rect );
+
+        css::uno::Sequence< sal_Int8 >
+            getPixel( css::rendering::IntegerBitmapLayout& bitmapLayout,
+                      const css::geometry::IntegerPoint2D& pos );
+
+        css::rendering::IntegerBitmapLayout getMemoryLayout() const;
+
+    private:
+        css::geometry::IntegerSize2D maSize;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */