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