INTEGRATION: CWS canvas02 (1.1.2); FILE ADDED

2005/10/11 15:41:18 thb 1.1.2.4: #i54170# Corrected license headers
2005/10/07 23:05:04 thb 1.1.2.3: #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 14:19:36 mbu 1.1.2.2: pagemanager validates hardware surfaces now and handles this case properly
2005/09/29 09:40:34 mbu 1.1.2.1: surfaceproxy now has completely redesigned strategy, does no longer depend on amount of available videomemory

1 files changed, 108 insertions, 0 deletions

diff --git a/canvas/source/tools/pagemanager.hxx b/canvas/source/tools/pagemanager.hxx
new file mode 100644
index 000000000000..5de48b995b4a
--- /dev/null
+++ b/canvas/source/tools/pagemanager.hxx
@@ -0,0 +1,108 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: pagemanager.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: kz $ $Date: 2005-11-02 12:54:32 $
+ *
+ *  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_PAGEMANAGER_HXX
+#define INCLUDED_CANVAS_PAGEMANAGER_HXX
+
+#ifndef _BGFX_VECTOR_B2ISIZE_HXX
+#include <basegfx/vector/b2isize.hxx>
+#endif
+#ifndef INCLUDED_CANVAS_IRENDERMODULE_HXX
+#include <canvas/rendering/irendermodule.hxx>
+#endif
+#ifndef INCLUDED_CANVAS_ISURFACE_HXX
+#include <canvas/rendering/isurface.hxx>
+#endif
+
+#include "page.hxx"
+
+namespace canvas
+{
+
+    //////////////////////////////////////////////////////////////////////////////////
+    // PageManager
+    //////////////////////////////////////////////////////////////////////////////////
+
+    class PageManager
+    {
+    public:
+        PageManager( const canvas::IRenderModuleSharedPtr pRenderModule ) :
+            mpRenderModule(pRenderModule)
+        {
+        }
+
+        // returns the maximum size of a hardware
+        // accelerated page, e.g. OpenGL texture.
+        ::basegfx::B2ISize getPageSize() const;
+
+        canvas::IRenderModuleSharedPtr getRenderModule() const;
+
+        FragmentSharedPtr allocateSpace( const ::basegfx::B2ISize& rSize );
+        void              free( const FragmentSharedPtr& pFragment );
+
+        void              nakedFragment( const FragmentSharedPtr& pFragment );
+
+        void              validatePages();
+
+    private:
+        // the pagemanager needs access to the rendermodule
+        // since we query for system resources from it.
+        canvas::IRenderModuleSharedPtr mpRenderModule;
+
+        // here we collect all fragments that will be created
+        // since we need them for relocation purposes.
+        typedef std::list<FragmentSharedPtr> FragmentContainer_t;
+        FragmentContainer_t maFragments;
+
+        // this is the container holding all created pages,
+        // behind the scenes these are real hardware surfaces.
+        typedef std::list<PageSharedPtr> PageContainer_t;
+        PageContainer_t maPages;
+
+        bool relocate( const FragmentSharedPtr& pFragment );
+    };
+
+    //////////////////////////////////////////////////////////////////////////////////
+    // PageManagerSharedPtr
+    //////////////////////////////////////////////////////////////////////////////////
+
+    typedef ::boost::shared_ptr< PageManager > PageManagerSharedPtr;
+
+    //////////////////////////////////////////////////////////////////////////////////
+    // End of file
+    //////////////////////////////////////////////////////////////////////////////////
+}
+
+#endif