canvas/source/directx/dx_canvas.cxx

   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
  21 #include <ctype.h>
  22 #include <canvas/debug.hxx>
  23 #include <canvas/verbosetrace.hxx>
  24 #include <canvas/canvastools.hxx>
  25 #include <tools/diagnose_ex.h>
  26
  27 #include <osl/mutex.hxx>
  28
  29 #include <com/sun/star/awt/XWindow.hpp>
  30 #include <com/sun/star/awt/XSystemDependentWindowPeer.hpp>
  31 #include <com/sun/star/registry/XRegistryKey.hpp>
  32 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  33 #include <com/sun/star/uno/XComponentContext.hpp>
  34 #include <com/sun/star/lang/NoSupportException.hpp>
  35
  36 #include <toolkit/helper/vclunohelper.hxx>
  37 #include <cppuhelper/factory.hxx>
  38 #include <cppuhelper/implementationentry.hxx>
  39 #include <comphelper/servicedecl.hxx>
  40 #include <vcl/opengl/OpenGLWrapper.hxx>
  41
  42 #include <basegfx/matrix/b2dhommatrix.hxx>
  43 #include <basegfx/point/b2dpoint.hxx>
  44 #include <basegfx/tools/canvastools.hxx>
  45 #include <basegfx/numeric/ftools.hxx>
  46
  47 #include "dx_graphicsprovider.hxx"
  48 #include "dx_winstuff.hxx"
  49 #include "dx_canvas.hxx"
  50
  51 #include <vcl/sysdata.hxx>
  52
  53 #define CANVAS_TECH "GDI+"
  54 #define CANVAS_SERVICE_NAME              "com.sun.star.rendering.Canvas."            CANVAS_TECH
  55 #define CANVAS_IMPLEMENTATION_NAME       "com.sun.star.comp.rendering.Canvas."       CANVAS_TECH
  56 #define BITMAPCANVAS_SERVICE_NAME        "com.sun.star.rendering.BitmapCanvas."      CANVAS_TECH
  57 #define BITMAPCANVAS_IMPLEMENTATION_NAME "com.sun.star.comp.rendering.BitmapCanvas." CANVAS_TECH
  58
  59
  60 using namespace ::com::sun::star;
  61
  62 namespace dxcanvas
  63 {
  64     /// Actual canonical implementation of the GraphicsProvider interface
  65     class GraphicsProviderImpl : public GraphicsProvider
  66     {
  67         GraphicsSharedPtr mpGraphics;
  68     public:
  69         explicit GraphicsProviderImpl( Gdiplus::Graphics* pGraphics ) : mpGraphics( pGraphics ) {}
  70         virtual GraphicsSharedPtr getGraphics() { return mpGraphics; }
  71     };
  72
  73     Canvas::Canvas( const uno::Sequence< uno::Any >&                aArguments,
  74                     const uno::Reference< uno::XComponentContext >& rxContext ) :
  75         maArguments(aArguments),
  76         mxComponentContext( rxContext )
  77     {
  78     }
  79
  80     void Canvas::initialize()
  81     {
  82         // #i64742# Only perform initialization when not in probe mode
  83         if( maArguments.getLength() == 0 )
  84             return;
  85
  86         // tdf#93870 - force VCL canvas in OpenGL mode for now.
  87         assert( !OpenGLWrapper::isVCLOpenGLEnabled() );
  88
  89         VERBOSE_TRACE( "Canvas::initialize called" );
  90
  91         // At index 1, we expect a HWND handle here, containing a
  92         // pointer to a valid window, on which to output
  93         // At index 2, we expect the current window bound rect
  94         ENSURE_ARG_OR_THROW( maArguments.getLength() >= 6 &&
  95                              maArguments[5].getValueTypeClass() == uno::TypeClass_SEQUENCE,
  96                              "Canvas::initialize: wrong number of arguments, or wrong types" );
  97
  98         uno::Sequence<sal_Int8> aSeq;
  99         maArguments[5] >>= aSeq;
 100
 101         const SystemGraphicsData* pSysData=reinterpret_cast<const SystemGraphicsData*>(aSeq.getConstArray());
 102         if( !pSysData || !pSysData->hDC )
 103             throw lang::NoSupportException("Passed SystemGraphicsData or HDC invalid!");
 104
 105         sal_Int64 nPtr = 0;
 106         maArguments[0] >>= nPtr;
 107         OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
 108         ENSURE_ARG_OR_THROW( pOutDev != NULL,"Canvas::initialize: invalid OutDev pointer" );
 109
 110         // setup helper
 111         maDeviceHelper.init( pSysData->hDC, pOutDev, *this );
 112         maCanvasHelper.setDevice( *this );
 113         maCanvasHelper.setTarget(
 114             GraphicsProviderSharedPtr(
 115                 new GraphicsProviderImpl(
 116                     Gdiplus::Graphics::FromHDC(pSysData->hDC))));
 117
 118         maArguments.realloc(0);
 119     }
 120
 121     void Canvas::disposeThis()
 122     {
 123         ::osl::MutexGuard aGuard( m_aMutex );
 124
 125         mxComponentContext.clear();
 126
 127         // forward to parent
 128         CanvasBaseT::disposeThis();
 129     }
 130
 131     OUString SAL_CALL Canvas::getServiceName(  ) throw (uno::RuntimeException)
 132     {
 133         return OUString( CANVAS_SERVICE_NAME );
 134     }
 135
 136     BitmapCanvas::BitmapCanvas( const uno::Sequence< uno::Any >&                aArguments,
 137                                 const uno::Reference< uno::XComponentContext >& rxContext ) :
 138         maArguments(aArguments),
 139         mxComponentContext( rxContext ),
 140         mpTarget()
 141     {
 142     }
 143
 144     void BitmapCanvas::initialize()
 145     {
 146         // #i64742# Only perform initialization when not in probe mode
 147         if( maArguments.getLength() == 0 )
 148             return;
 149
 150         VERBOSE_TRACE( "BitmapCanvas::initialize called" );
 151
 152         // At index 1, we expect a HWND handle here, containing a
 153         // pointer to a valid window, on which to output
 154         // At index 2, we expect the current window bound rect
 155         ENSURE_ARG_OR_THROW( maArguments.getLength() >= 6 &&
 156                              maArguments[5].getValueTypeClass() == uno::TypeClass_SEQUENCE,
 157                              "Canvas::initialize: wrong number of arguments, or wrong types" );
 158
 159         uno::Sequence<sal_Int8> aSeq;
 160         maArguments[5] >>= aSeq;
 161
 162         const SystemGraphicsData* pSysData=reinterpret_cast<const SystemGraphicsData*>(aSeq.getConstArray());
 163         if( !pSysData || !pSysData->hDC )
 164             throw lang::NoSupportException( "Passed SystemGraphicsData or HDC invalid!");
 165
 166         sal_Int64 nPtr = 0;
 167         maArguments[0] >>= nPtr;
 168         OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
 169         ENSURE_ARG_OR_THROW( pOutDev != NULL,"Canvas::initialize: invalid OutDev pointer" );
 170
 171         // setup helper
 172         maDeviceHelper.init( pSysData->hDC, pOutDev, *this );
 173         maCanvasHelper.setDevice( *this );
 174
 175         // check whether we can actually provide a BitmapCanvas
 176         // here. for this, check whether the HDC has a bitmap
 177         // selected.
 178         HBITMAP hBmp;
 179         hBmp=(HBITMAP)GetCurrentObject(pSysData->hDC, OBJ_BITMAP);
 180         if( !hBmp || GetObjectType(pSysData->hDC) != OBJ_MEMDC )
 181         {
 182             throw lang::NoSupportException( "Passed HDC is no mem DC/has no bitmap selected!");
 183         }
 184
 185         mpTarget.reset( new DXBitmap(
 186                             BitmapSharedPtr(
 187                                 Gdiplus::Bitmap::FromHBITMAP(
 188                                     hBmp, 0) ),
 189                             false ));
 190
 191         maCanvasHelper.setTarget( mpTarget );
 192
 193         maArguments.realloc(0);
 194     }
 195
 196     void BitmapCanvas::disposeThis()
 197     {
 198         ::osl::MutexGuard aGuard( m_aMutex );
 199
 200         mpTarget.reset();
 201         mxComponentContext.clear();
 202
 203         // forward to parent
 204         BitmapCanvasBaseT::disposeThis();
 205     }
 206
 207     OUString SAL_CALL BitmapCanvas::getServiceName(  ) throw (uno::RuntimeException)
 208     {
 209         return OUString( BITMAPCANVAS_SERVICE_NAME );
 210     }
 211
 212     IBitmapSharedPtr BitmapCanvas::getBitmap() const
 213     {
 214         return mpTarget;
 215     }
 216
 217     static uno::Reference<uno::XInterface> initCanvas( Canvas* pCanvas )
 218     {
 219         uno::Reference<uno::XInterface> xRet(static_cast<cppu::OWeakObject*>(pCanvas));
 220         pCanvas->initialize();
 221         return xRet;
 222     }
 223
 224     namespace sdecl = comphelper::service_decl;
 225     sdecl::class_<Canvas, sdecl::with_args<true> > serviceImpl1(&initCanvas);
 226     const sdecl::ServiceDecl dxCanvasDecl(
 227         serviceImpl1,
 228         CANVAS_IMPLEMENTATION_NAME,
 229         CANVAS_SERVICE_NAME );
 230
 231     static uno::Reference<uno::XInterface> initBitmapCanvas( BitmapCanvas* pCanvas )
 232     {
 233         uno::Reference<uno::XInterface> xRet(static_cast<cppu::OWeakObject*>(pCanvas));
 234         pCanvas->initialize();
 235         return xRet;
 236     }
 237
 238     namespace sdecl = comphelper::service_decl;
 239     sdecl::class_<BitmapCanvas, sdecl::with_args<true> > serviceImpl2(&initBitmapCanvas);
 240     const sdecl::ServiceDecl dxBitmapCanvasDecl(
 241         serviceImpl2,
 242         BITMAPCANVAS_IMPLEMENTATION_NAME,
 243         BITMAPCANVAS_SERVICE_NAME );
 244 }
 245
 246 // The C shared lib entry points
 247 COMPHELPER_SERVICEDECL_EXPORTS2(gdipluscanvas,
 248                                 dxcanvas::dxCanvasDecl,
 249                                 dxcanvas::dxBitmapCanvasDecl)
 250
 251 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */