INTEGRATION: CWS canvas02 (1.1.2); FILE ADDED

2005/10/11 15:41:20 thb 1.1.2.3: #i54170# Corrected license headers
2005/10/07 23:05:05 thb 1.1.2.2: #i48939# Unified formatting; improved constness; avoided a few copy constructions; pruned debug code; removed empty destructors; moved end iterator queries out of the loops
2005/09/29 09:41:30 mbu 1.1.2.1: surfaceproxy now has completely redesigned strategy, does no longer depend on amount of available videomemory

1 files changed, 188 insertions, 0 deletions

diff --git a/canvas/source/tools/surface.hxx b/canvas/source/tools/surface.hxx
new file mode 100644
index 000000000000..d3271d794a10
--- /dev/null
+++ b/canvas/source/tools/surface.hxx
@@ -0,0 +1,188 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: surface.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: kz $ $Date: 2005-11-02 12:55:38 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library 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
+ *    Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+#ifndef INCLUDED_CANVAS_SURFACE_HXX
+#define INCLUDED_CANVAS_SURFACE_HXX
+
+#ifndef _BGFX_POINT_B2IPOINT_HXX
+#include <basegfx/point/b2ipoint.hxx>
+#endif
+#ifndef _BGFX_POINT_B2DPOINT_HXX
+#include <basegfx/point/b2dpoint.hxx>
+#endif
+#ifndef _BGFX_POLYGON_B2DPOLYGON_HXX
+#include <basegfx/polygon/b2dpolygon.hxx>
+#endif
+#ifndef _BGFX_RANGE_B2DRECTANGLE_HXX
+#include <basegfx/range/b2drectangle.hxx>
+#endif
+#ifndef _BGFX_VECTOR_B2ISIZE_HXX
+#include <basegfx/vector/b2isize.hxx>
+#endif
+#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#endif
+#ifndef INCLUDED_CANVAS_IRENDERMODULE_HXX
+#include <canvas/rendering/irendermodule.hxx>
+#endif
+#ifndef INCLUDED_CANVAS_ICOLORBUFFER_HXX
+#include <canvas/rendering/icolorbuffer.hxx>
+#endif
+#ifndef INCLUDED_CANVAS_ISURFACE_HXX
+#include <canvas/rendering/isurface.hxx>
+#endif
+
+#include "surfacerect.hxx"
+#include "pagemanager.hxx"
+
+namespace canvas
+{
+    //////////////////////////////////////////////////////////////////////////////////
+    // Surface
+    //////////////////////////////////////////////////////////////////////////////////
+
+    /** surfaces denote occupied areas withing pages.
+
+        pages encapsulate the hardware buffers that
+        contain image data which can be used for texturing.
+        surfaces are areas within those pages.
+    */
+    class Surface
+    {
+    public:
+
+        Surface( const PageManagerSharedPtr&  rPageManager,
+                 const IColorBufferSharedPtr& rColorBuffer,
+                 const ::basegfx::B2IPoint&   rPos,
+                 const ::basegfx::B2ISize&    rSize );
+        ~Surface();
+
+        void setColorBufferDirty();
+
+        /** Render the surface content to screen.
+
+            @param fAlpha
+            Overall alpha for content
+
+            @param rPos
+            Output position
+
+            @param rTransform
+            Output transformation (does not affect output position)
+        */
+        bool draw( double                         fAlpha,
+                   const ::basegfx::B2DPoint&     rPos,
+                   const ::basegfx::B2DHomMatrix& rTransform );
+
+        /** Render the surface content to screen.
+
+            @param fAlpha
+            Overall alpha for content
+
+            @param rPos
+            Output position
+
+            @param rArea
+            Subset of the surface to render. Coordinate system are
+            surface area pixel, given area will be clipped to the
+            surface bounds.
+
+            @param rTransform
+            Output transformation (does not affect output position)
+        */
+        bool drawRectangularArea(
+            double                         fAlpha,
+            const ::basegfx::B2DPoint&     rPos,
+            const ::basegfx::B2DRange&     rArea,
+            const ::basegfx::B2DHomMatrix& rTransform );
+
+        /** Render the surface content to screen.
+
+            @param fAlpha
+            Overall alpha for content
+
+            @param rPos
+            Output position
+
+            @param rClipPoly
+            Clip polygon for the surface. The clip polygon is also
+            subject to the output transformation.
+
+            @param rTransform
+            Output transformation (does not affect output position)
+        */
+        bool drawWithClip( double                           fAlpha,
+                           const ::basegfx::B2DPoint&       rPos,
+                           const ::basegfx::B2DPolygon&     rClipPoly,
+                           const ::basegfx::B2DHomMatrix&   rTransform );
+
+        // private attributes
+    private:
+        IColorBufferSharedPtr mpColorBuffer;
+
+        // invoking any of the above defined 'draw' methods
+        // will forward primitive commands to the rendermodule.
+        PageManagerSharedPtr  mpPageManager;
+
+        FragmentSharedPtr     mpFragment;
+
+        // the offset of this surface with regard to the source
+        // image. if the source image had to be tiled into multiple
+        // surfaces, this offset denotes the relative pixel distance
+        // from the source image's upper, left corner
+        ::basegfx::B2IPoint   maSourceOffset;
+
+        // the size in pixels of this surface. please note that
+        // this size is likely to be smaller than the size of
+        // the colorbuffer we're associated with since we
+        // maybe represent only a part of it.
+        ::basegfx::B2ISize    maSize;
+
+        bool                  mbIsDirty;
+
+        // private methods
+    private:
+        bool refresh( canvas::IColorBuffer& rBuffer ) const;
+        void prepareRendering();
+
+        basegfx::B2DRectangle getUVCoords() const;
+        basegfx::B2DRectangle getUVCoords( const ::basegfx::B2IPoint& rPos,
+                                           const ::basegfx::B2ISize&  rSize ) const;
+    };
+
+    typedef ::boost::shared_ptr< Surface > SurfaceSharedPtr;
+}
+
+#endif