canvas/source/cairo/cairo_spritecanvas.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 #include <canvas/debug.hxx>
  21 #include <canvas/verbosetrace.hxx>
  22 #include <canvas/canvastools.hxx>
  23 #include <tools/diagnose_ex.h>
  24
  25 #include <osl/mutex.hxx>
  26
  27 #include <com/sun/star/registry/XRegistryKey.hpp>
  28 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  29 #include <com/sun/star/uno/XComponentContext.hpp>
  30 #include <com/sun/star/lang/NoSupportException.hpp>
  31
  32 #include <toolkit/helper/vclunohelper.hxx>
  33
  34 #include <basegfx/matrix/b2dhommatrix.hxx>
  35 #include <basegfx/point/b2dpoint.hxx>
  36 #include <basegfx/tools/canvastools.hxx>
  37 #include <basegfx/numeric/ftools.hxx>
  38
  39 #include "cairo_spritecanvas.hxx"
  40
  41 using namespace ::cairo;
  42 using namespace ::com::sun::star;
  43
  44 namespace cairocanvas
  45 {
  46     SpriteCanvas::SpriteCanvas( const uno::Sequence< uno::Any >&                aArguments,
  47                                 const uno::Reference< uno::XComponentContext >& rxContext ) :
  48         maArguments(aArguments),
  49         mxComponentContext( rxContext )
  50     {
  51     }
  52
  53     void SpriteCanvas::initialize()
  54     {
  55         VERBOSE_TRACE("CairoSpriteCanvas created %p\n", this);
  56
  57         // #i64742# Only call initialize when not in probe mode
  58         if( maArguments.getLength() == 0 )
  59             return;
  60
  61         /* maArguments:
  62            0: ptr to creating instance (Window or VirtualDevice)
  63            1: SystemEnvData as a streamed Any (or empty for VirtualDevice)
  64            2: current bounds of creating instance
  65            3: bool, denoting always on top state for Window (always false for VirtualDevice)
  66            4: XWindow for creating Window (or empty for VirtualDevice)
  67            5: SystemGraphicsData as a streamed Any
  68          */
  69         ENSURE_ARG_OR_THROW( maArguments.getLength() >= 4 &&
  70                              maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER &&
  71                              maArguments[4].getValueTypeClass() == uno::TypeClass_INTERFACE,
  72                              "CairoSpriteCanvas::initialize: wrong number of arguments, or wrong types" );
  73
  74         awt::Rectangle aRect;
  75         maArguments[2] >>= aRect;
  76
  77         bool bIsFullscreen( false );
  78         maArguments[3] >>= bIsFullscreen;
  79
  80         uno::Reference< awt::XWindow > xParentWindow;
  81         maArguments[4] >>= xParentWindow;
  82
  83         vcl::Window* pParentWindow = VCLUnoHelper::GetWindow(xParentWindow);
  84         if( !pParentWindow )
  85             throw lang::NoSupportException(
  86                 "Parent window not VCL window, or canvas out-of-process!", NULL);
  87
  88         bool bHasCairo = pParentWindow->SupportsCairo();
  89         ENSURE_ARG_OR_THROW(bHasCairo,
  90                             "CairoSpriteCanvas::SpriteCanvas: No Cairo capability");
  91
  92         Size aPixelSize( pParentWindow->GetOutputSizePixel() );
  93         const ::basegfx::B2ISize aSize( aPixelSize.Width(),
  94                                         aPixelSize.Height() );
  95
  96         // setup helper
  97         maDeviceHelper.init( *pParentWindow,
  98                              *this,
  99                              aSize,
 100                              bIsFullscreen );
 101
 102         setWindow(uno::Reference<awt::XWindow2>(xParentWindow, uno::UNO_QUERY_THROW));
 103
 104         maCanvasHelper.init( maRedrawManager,
 105                              *this,
 106                              aSize );
 107
 108         maArguments.realloc(0);
 109     }
 110
 111     void SpriteCanvas::disposeThis()
 112     {
 113         ::osl::MutexGuard aGuard( m_aMutex );
 114
 115         mxComponentContext.clear();
 116
 117         // forward to parent
 118         SpriteCanvasBaseT::disposeThis();
 119     }
 120
 121     sal_Bool SAL_CALL SpriteCanvas::showBuffer( sal_Bool bUpdateAll ) throw (uno::RuntimeException, std::exception)
 122     {
 123         return updateScreen( bUpdateAll );
 124     }
 125
 126     sal_Bool SAL_CALL SpriteCanvas::switchBuffer( sal_Bool bUpdateAll ) throw (uno::RuntimeException)
 127     {
 128         return updateScreen( bUpdateAll );
 129     }
 130
 131     sal_Bool SAL_CALL SpriteCanvas::updateScreen( sal_Bool bUpdateAll ) throw (uno::RuntimeException, std::exception)
 132     {
 133         ::osl::MutexGuard aGuard( m_aMutex );
 134
 135         // avoid repaints on hidden window (hidden: not mapped to
 136         // screen). Return failure, since the screen really has _not_
 137         // been updated (caller should try again later)
 138         return mbIsVisible && maCanvasHelper.updateScreen(
 139             ::basegfx::unotools::b2IRectangleFromAwtRectangle(maBounds),
 140             bUpdateAll,
 141             mbSurfaceDirty);
 142     }
 143
 144     OUString SAL_CALL SpriteCanvas::getServiceName(  ) throw (uno::RuntimeException, std::exception)
 145     {
 146         return OUString( SPRITECANVAS_SERVICE_NAME );
 147     }
 148
 149     SurfaceSharedPtr SpriteCanvas::getSurface()
 150     {
 151         return maDeviceHelper.getBufferSurface();
 152     }
 153
 154     SurfaceSharedPtr SpriteCanvas::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
 155     {
 156         return maDeviceHelper.createSurface( rSize, aContent );
 157     }
 158
 159     SurfaceSharedPtr SpriteCanvas::createSurface( ::Bitmap& rBitmap )
 160     {
 161         BitmapSystemData aData;
 162         if( rBitmap.GetSystemData( aData ) ) {
 163             const Size& rSize = rBitmap.GetSizePixel();
 164
 165             return maDeviceHelper.createSurface( aData, rSize );
 166         }
 167
 168         return SurfaceSharedPtr();
 169     }
 170
 171     SurfaceSharedPtr SpriteCanvas::changeSurface( bool, bool )
 172     {
 173         // non-modifiable surface here
 174         return SurfaceSharedPtr();
 175     }
 176
 177     OutputDevice* SpriteCanvas::getOutputDevice()
 178     {
 179         return maDeviceHelper.getOutputDevice();
 180     }
 181
 182     SurfaceSharedPtr SpriteCanvas::getBufferSurface()
 183     {
 184         return maDeviceHelper.getBufferSurface();
 185     }
 186
 187     SurfaceSharedPtr SpriteCanvas::getWindowSurface()
 188     {
 189         return maDeviceHelper.getWindowSurface();
 190     }
 191
 192     const ::basegfx::B2ISize& SpriteCanvas::getSizePixel()
 193     {
 194         return maDeviceHelper.getSizePixel();
 195     }
 196
 197     void SpriteCanvas::setSizePixel( const ::basegfx::B2ISize& rSize )
 198     {
 199         maCanvasHelper.setSize( rSize );
 200         // re-set background surface, in case it needed recreation
 201         maCanvasHelper.setSurface( maDeviceHelper.getBufferSurface(),
 202                                    false );
 203     }
 204
 205     void SpriteCanvas::flush()
 206     {
 207         maDeviceHelper.flush();
 208     }
 209
 210     bool SpriteCanvas::repaint( const SurfaceSharedPtr&       pSurface,
 211                                 const rendering::ViewState&   viewState,
 212                                 const rendering::RenderState& renderState )
 213     {
 214         return maCanvasHelper.repaint( pSurface, viewState, renderState );
 215     }
 216 }
 217
 218 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */