canvas/source/cairo/cairo_devicehelper.hxx

   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_DEVICEHELPER_HXX
  21 #define _CAIROCANVAS_DEVICEHELPER_HXX
  22
  23 #include <com/sun/star/awt/Rectangle.hpp>
  24 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  25 #include <com/sun/star/rendering/XBufferController.hpp>
  26
  27 #include <boost/utility.hpp>
  28
  29 #include <vcl/window.hxx>
  30 #include <vcl/bitmap.hxx>
  31
  32 #include "cairo_cairo.hxx"
  33 #include "cairo_surfaceprovider.hxx"
  34
  35 /* Definition of DeviceHelper class */
  36
  37 namespace cairocanvas
  38 {
  39     class DeviceHelper : private ::boost::noncopyable
  40     {
  41     public:
  42         DeviceHelper();
  43
  44         /** init helper
  45
  46             @param rCanvas
  47             Owning canvas.
  48
  49             @param rRefDevice
  50             Reference output device. Needed for resolution
  51             calculations etc.
  52          */
  53         void init( SurfaceProvider& rSurfaceProvider,
  54                    OutputDevice&    rRefDevice );
  55
  56         /// Dispose all internal references
  57         void disposing();
  58
  59         // XWindowGraphicDevice
  60         ::com::sun::star::geometry::RealSize2D getPhysicalResolution();
  61         ::com::sun::star::geometry::RealSize2D getPhysicalSize();
  62         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XLinePolyPolygon2D > createCompatibleLinePolyPolygon(
  63             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&                               rDevice,
  64             const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealPoint2D > >& points );
  65         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBezierPolyPolygon2D > createCompatibleBezierPolyPolygon(
  66             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&                                       rDevice,
  67             const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealBezierSegment2D > >& points );
  68         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleBitmap(
  69             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  70             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  71         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileBitmap(
  72             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  73             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  74         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleAlphaBitmap(
  75             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  76             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  77         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileAlphaBitmap(
  78             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  79             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  80         sal_Bool hasFullScreenMode(  );
  81         sal_Bool enterFullScreenMode( sal_Bool bEnter );
  82
  83         ::com::sun::star::uno::Any isAccelerated() const;
  84         ::com::sun::star::uno::Any getDeviceHandle() const;
  85         ::com::sun::star::uno::Any getSurfaceHandle() const;
  86         ::com::sun::star::uno::Reference<
  87             ::com::sun::star::rendering::XColorSpace > getColorSpace() const;
  88
  89         /** called when DumpScreenContent property is enabled on
  90             XGraphicDevice, and writes out bitmaps of current screen.
  91          */
  92         void dumpScreenContent() const;
  93
  94         OutputDevice* getOutputDevice() const { return mpRefDevice; }
  95         const void* getSysData() { return mpSysData; }
  96         ::cairo::SurfaceSharedPtr getSurface();
  97         ::cairo::SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, ::cairo::Content aContent = CAIRO_CONTENT_COLOR_ALPHA );
  98         ::cairo::SurfaceSharedPtr createSurface( BitmapSystemData& rData, const Size& rSize );
  99
 100     protected:
 101         /** init helper
 102
 103             @param rCanvas
 104             Owning canvas.
 105
 106             @param rRefDevice
 107             Reference output device. Needed for resolution
 108             calculations etc.
 109          */
 110         void implInit( SurfaceProvider& rSurfaceProvider,
 111                        OutputDevice&    rRefDevice );
 112         void setSize( const ::basegfx::B2ISize& rSize );
 113
 114     private:
 115         /** Surface provider
 116
 117             Deliberately not a refcounted reference, because of
 118             potential circular references for canvas. Provides us with
 119             our output surface and associated functionality.
 120          */
 121         SurfaceProvider*          mpSurfaceProvider;
 122
 123         OutputDevice*             mpRefDevice;
 124         const void*               mpSysData;
 125         ::cairo::SurfaceSharedPtr mpSurface;
 126     };
 127 }
 128
 129 #endif
 130
 131 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */