09b546cf9c
With enabled -Woverloaded-virtual gcc warning (see http://lists.freedesktop.org/archives/libreoffice/2011-March/009567.html), canvas exposed a nasty clash between WeakComponentImplHelper::disposing and XEventListener::disposing. Fixed by overriding *once* in baseclass, and then calling disambiguated, renamed methods.
280 lines
11 KiB
C++
280 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_canvas.hxx"
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#include <ctype.h> // don't ask. msdev breaks otherwise...
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#include <canvas/debug.hxx>
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#include <canvas/canvastools.hxx>
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#include <tools/diagnose_ex.h>
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#include <vcl/bitmapex.hxx>
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#include <boost/preprocessor/repetition.hpp>
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#include <boost/preprocessor/iteration/local.hpp>
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#include <boost/scoped_array.hpp>
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#include "dx_canvasbitmap.hxx"
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#include "dx_impltools.hxx"
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using namespace ::com::sun::star;
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namespace dxcanvas
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{
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CanvasBitmap::CanvasBitmap( const IBitmapSharedPtr& rBitmap,
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const DeviceRef& rDevice ) :
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mpDevice( rDevice ),
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mpBitmap( rBitmap )
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{
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ENSURE_OR_THROW( mpDevice.is() && mpBitmap,
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"CanvasBitmap::CanvasBitmap(): Invalid surface or device" );
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maCanvasHelper.setDevice( *mpDevice.get() );
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maCanvasHelper.setTarget( mpBitmap );
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}
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void CanvasBitmap::disposeThis()
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{
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mpBitmap.reset();
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mpDevice.clear();
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// forward to parent
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CanvasBitmap_Base::disposeThis();
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}
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struct AlphaDIB
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{
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BITMAPINFOHEADER bmiHeader;
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RGBQUAD bmiColors[256];
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};
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uno::Any SAL_CALL CanvasBitmap::getFastPropertyValue( sal_Int32 nHandle ) throw (uno::RuntimeException)
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{
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uno::Any aRes;
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// 0 ... get BitmapEx
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// 1 ... get Pixbuf with bitmap RGB content
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// 2 ... get Pixbuf with bitmap alpha mask
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switch( nHandle )
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{
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// sorry, no BitmapEx here...
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case 0:
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aRes = ::com::sun::star::uno::Any( reinterpret_cast<sal_Int64>( (BitmapEx*) NULL ) );
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break;
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case 1:
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{
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if(!mpBitmap->hasAlpha())
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{
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HBITMAP aHBmp;
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mpBitmap->getBitmap()->GetHBITMAP(Gdiplus::Color(), &aHBmp );
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uno::Sequence< uno::Any > args(1);
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args[0] = uno::Any( sal_Int64(aHBmp) );
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aRes <<= args;
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}
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else
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{
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// need to copy&convert the bitmap, since dx
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// canvas uses inline alpha channel
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HDC hScreenDC=GetDC(NULL);
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const basegfx::B2IVector aSize(mpBitmap->getSize());
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HBITMAP hBmpBitmap = CreateCompatibleBitmap( hScreenDC,
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aSize.getX(),
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aSize.getY() );
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if( !hBmpBitmap )
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return aRes;
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BITMAPINFOHEADER aBIH;
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aBIH.biSize = sizeof( BITMAPINFOHEADER );
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aBIH.biWidth = aSize.getX();
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aBIH.biHeight = -aSize.getY();
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aBIH.biPlanes = 1;
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aBIH.biBitCount = 32;
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aBIH.biCompression = BI_RGB; // expects pixel in
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// bbggrrxx format
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// (little endian)
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aBIH.biSizeImage = 0;
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aBIH.biXPelsPerMeter = 0;
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aBIH.biYPelsPerMeter = 0;
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aBIH.biClrUsed = 0;
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aBIH.biClrImportant = 0;
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Gdiplus::BitmapData aBmpData;
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aBmpData.Width = aSize.getX();
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aBmpData.Height = aSize.getY();
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aBmpData.Stride = 4*aBmpData.Width;
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aBmpData.PixelFormat = PixelFormat32bppARGB;
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aBmpData.Scan0 = NULL;
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const Gdiplus::Rect aRect( 0,0,aSize.getX(),aSize.getY() );
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BitmapSharedPtr pGDIPlusBitmap=mpBitmap->getBitmap();
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if( Gdiplus::Ok != pGDIPlusBitmap->LockBits( &aRect,
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Gdiplus::ImageLockModeRead,
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PixelFormat32bppARGB, // outputs ARGB (big endian)
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&aBmpData ) )
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{
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// failed to lock, bail out
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return aRes;
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}
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// now aBmpData.Scan0 contains our bits - push
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// them into HBITMAP, ignoring alpha
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SetDIBits( hScreenDC, hBmpBitmap, 0, aSize.getY(), aBmpData.Scan0, (PBITMAPINFO)&aBIH, DIB_RGB_COLORS );
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pGDIPlusBitmap->UnlockBits( &aBmpData );
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uno::Sequence< uno::Any > args(1);
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args[0] = uno::Any( sal_Int64(hBmpBitmap) );
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aRes <<= args;
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}
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}
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break;
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case 2:
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{
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if(!mpBitmap->hasAlpha())
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{
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return aRes;
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}
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else
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{
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static AlphaDIB aDIB=
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{
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{0,0,0,1,8,BI_RGB,0,0,0,0,0},
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{
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// this here fills palette with grey
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// level colors, starting from 0,0,0
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// up to 255,255,255
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#define BOOST_PP_LOCAL_MACRO(n_) \
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BOOST_PP_COMMA_IF(n_) \
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{n_,n_,n_,n_}
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#define BOOST_PP_LOCAL_LIMITS (0, 255)
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#include BOOST_PP_LOCAL_ITERATE()
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}
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};
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// need to copy&convert the bitmap, since dx
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// canvas uses inline alpha channel
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HDC hScreenDC=GetDC(NULL);
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const basegfx::B2IVector aSize(mpBitmap->getSize());
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HBITMAP hBmpBitmap = CreateCompatibleBitmap( hScreenDC, aSize.getX(), aSize.getY() );
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if( !hBmpBitmap )
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return aRes;
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aDIB.bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
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aDIB.bmiHeader.biWidth = aSize.getX();
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aDIB.bmiHeader.biHeight = -aSize.getY();
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aDIB.bmiHeader.biPlanes = 1;
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aDIB.bmiHeader.biBitCount = 8;
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aDIB.bmiHeader.biCompression = BI_RGB;
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aDIB.bmiHeader.biSizeImage = 0;
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aDIB.bmiHeader.biXPelsPerMeter = 0;
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aDIB.bmiHeader.biYPelsPerMeter = 0;
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aDIB.bmiHeader.biClrUsed = 0;
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aDIB.bmiHeader.biClrImportant = 0;
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Gdiplus::BitmapData aBmpData;
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aBmpData.Width = aSize.getX();
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aBmpData.Height = aSize.getY();
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aBmpData.Stride = 4*aBmpData.Width;
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aBmpData.PixelFormat = PixelFormat32bppARGB;
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aBmpData.Scan0 = NULL;
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const Gdiplus::Rect aRect( 0,0,aSize.getX(),aSize.getY() );
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BitmapSharedPtr pGDIPlusBitmap=mpBitmap->getBitmap();
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if( Gdiplus::Ok != pGDIPlusBitmap->LockBits( &aRect,
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Gdiplus::ImageLockModeRead,
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PixelFormat32bppARGB, // outputs ARGB (big endian)
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&aBmpData ) )
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{
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// failed to lock, bail out
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return aRes;
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}
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// copy only alpha channel to pAlphaBits
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const sal_Int32 nScanWidth((aSize.getX() + 3) & ~3);
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boost::scoped_array<sal_uInt8> pAlphaBits( new sal_uInt8[nScanWidth*aSize.getY()] );
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const sal_uInt8* pInBits=(sal_uInt8*)aBmpData.Scan0;
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pInBits+=3;
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sal_uInt8* pOutBits;
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for( sal_Int32 y=0; y<aSize.getY(); ++y )
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{
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pOutBits=pAlphaBits.get()+y*nScanWidth;
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for( sal_Int32 x=0; x<aSize.getX(); ++x )
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{
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*pOutBits++ = 255-*pInBits;
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pInBits += 4;
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}
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}
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pGDIPlusBitmap->UnlockBits( &aBmpData );
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// set bits to newly create HBITMAP
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SetDIBits( hScreenDC, hBmpBitmap, 0,
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aSize.getY(), pAlphaBits.get(),
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(PBITMAPINFO)&aDIB, DIB_RGB_COLORS );
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uno::Sequence< uno::Any > args(1);
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args[0] = uno::Any( sal_Int64(hBmpBitmap) );
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aRes <<= args;
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}
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}
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break;
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}
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return aRes;
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}
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#define IMPLEMENTATION_NAME "DXCanvas.CanvasBitmap"
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#define SERVICE_NAME "com.sun.star.rendering.CanvasBitmap"
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::rtl::OUString SAL_CALL CanvasBitmap::getImplementationName( ) throw (uno::RuntimeException)
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{
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return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
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}
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sal_Bool SAL_CALL CanvasBitmap::supportsService( const ::rtl::OUString& ServiceName ) throw (uno::RuntimeException)
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{
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return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) );
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}
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uno::Sequence< ::rtl::OUString > SAL_CALL CanvasBitmap::getSupportedServiceNames( ) throw (uno::RuntimeException)
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{
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uno::Sequence< ::rtl::OUString > aRet(1);
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aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
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return aRet;
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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