Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef _CAIROCANVAS_SURFACEPROVIDER_HXX
      21             : #define _CAIROCANVAS_SURFACEPROVIDER_HXX
      22             : 
      23             : #include <rtl/ref.hxx>
      24             : #include <com/sun/star/uno/XInterface.hpp>
      25             : 
      26             : #include "cairo_cairo.hxx"
      27             : 
      28             : using namespace ::cairo;
      29             : 
      30             : class OutputDevice;
      31             : class Bitmap;
      32             : 
      33             : namespace cairocanvas
      34             : {
      35             :     class Bitmap;
      36             : 
      37             :     /* Definition of RepaintTarget interface */
      38             : 
      39             :     /** Target interface for XCachedPrimitive implementations
      40             : 
      41             :         This interface must be implemented on all canvas
      42             :         implementations that hand out XCachedPrimitives
      43             :      */
      44           0 :     class SurfaceProvider : public ::com::sun::star::uno::XInterface
      45             :     {
      46             :     public:
      47           0 :         virtual ~SurfaceProvider() {}
      48             : 
      49             :         /** Query surface from this provider
      50             : 
      51             :             This should return the default surface to render on.
      52             :          */
      53             :         virtual SurfaceSharedPtr getSurface() = 0;
      54             : 
      55             :         /// create new surface in given size
      56             :         virtual SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize,
      57             :                                                 Content aContent = CAIRO_CONTENT_COLOR_ALPHA ) = 0;
      58             :         /// create new surface from given bitmap
      59             :         virtual SurfaceSharedPtr createSurface( ::Bitmap& rBitmap ) = 0;
      60             : 
      61             :         /** convert surface between alpha and non-alpha
      62             :             channel. returns new surface on success, NULL otherwise
      63             :         */
      64             :         virtual SurfaceSharedPtr changeSurface( bool bHasAlpha, bool bCopyContent ) = 0;
      65             : 
      66             :         /** Provides the underlying vcl outputdevice this surface renders on
      67             :          */
      68             :         virtual OutputDevice* getOutputDevice() = 0;
      69             :     };
      70             : 
      71             :     typedef ::rtl::Reference< SurfaceProvider > SurfaceProviderRef;
      72             : }
      73             : 
      74             : #endif
      75             : 
      76             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */