4e75a4a810
2005/10/08 12:53:34 thb 1.3.10.3: RESYNC: (1.3-1.4); FILE MERGED 2005/06/28 11:22:48 thb 1.3.10.2: #i48939# Removed refcounted reference to device in canvashelper (leads to circular references for SpriteCanvas); improved docs; added drawBezier() implementation 2005/06/17 23:49:49 thb 1.3.10.1: #i48939# Huge refactoring of canvas; as much functionality as possible is now common in a bunch of shared base classes (input checking, locking, sprite redraw, etc.); added scroll update optimization, transparently to all canvas implementations
133 lines
5.0 KiB
C++
133 lines
5.0 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: canvasbitmaphelper.hxx,v $
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*
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* $Revision: 1.5 $
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*
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* last change: $Author: kz $ $Date: 2005-11-02 12:59:00 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef _VCLCANVAS_CANVASBITMAPHELPER_HXX_
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#define _VCLCANVAS_CANVASBITMAPHELPER_HXX_
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#include <canvashelper.hxx>
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#include <canvas/vclwrapper.hxx>
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#include <vcl/bitmapex.hxx>
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#include "bitmapbackbuffer.hxx"
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#include "spritecanvas.hxx"
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namespace vclcanvas
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{
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/** Helper class for basic canvasbitmap functionality. Extends
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CanvasHelper with some CanvasBitmap specialities, such as alpha
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support.
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Note that a plain CanvasHelper, although it does support the
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XBitmap interface, has no provision for alpha channel on VCL
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(at least no efficient one. If the alpha VDev one day gets
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part of SAL, we might change that).
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*/
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class CanvasBitmapHelper : public CanvasHelper
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{
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public:
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CanvasBitmapHelper();
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/** Set a new bitmap on this helper.
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This method late-initializes the bitmap canvas helper,
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providing it with the necessary device and output
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objects. The internally stored bitmap representation is
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updated from the given bitmap, including any size
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changes. Note that the CanvasHelper does <em>not</em> take
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ownership of the SpriteCanvas object, nor does it perform
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any reference counting. Thus, to prevent reference counted
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objects from deletion, the user of this class is
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responsible for holding ref-counted references to those
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objects!
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@param rBitmap
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Content of this bitmap is used as our new content (our
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internal size is adapted to the size of the bitmap given)
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@param rDevice
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Reference device for this canvas bitmap
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*/
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void init( const BitmapEx& rBitmap,
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SpriteCanvas& rDevice );
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// Overridden CanvasHelper functionality
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// =====================================
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void disposing();
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::com::sun::star::geometry::IntegerSize2D getSize();
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::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapCanvas > queryBitmapCanvas();
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::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap >
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getScaledBitmap( const ::com::sun::star::geometry::RealSize2D& newSize,
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sal_Bool beFast );
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::com::sun::star::uno::Sequence< sal_Int8 >
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getData( ::com::sun::star::rendering::IntegerBitmapLayout& bitmapLayout,
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const ::com::sun::star::geometry::IntegerRectangle2D& rect );
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void setData( const ::com::sun::star::uno::Sequence< sal_Int8 >& data,
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const ::com::sun::star::rendering::IntegerBitmapLayout& bitmapLayout,
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const ::com::sun::star::geometry::IntegerRectangle2D& rect );
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void setPixel( const ::com::sun::star::uno::Sequence< sal_Int8 >& color,
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const ::com::sun::star::rendering::IntegerBitmapLayout& bitmapLayout,
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const ::com::sun::star::geometry::IntegerPoint2D& pos );
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::com::sun::star::uno::Sequence< sal_Int8 >
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getPixel( ::com::sun::star::rendering::IntegerBitmapLayout& bitmapLayout,
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const ::com::sun::star::geometry::IntegerPoint2D& pos );
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::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapPalette > getPalette();
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::com::sun::star::rendering::IntegerBitmapLayout getMemoryLayout();
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/// @internal
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BitmapEx getBitmap() const;
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private:
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void setBitmap( const BitmapEx& rBitmap );
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BitmapBackBufferSharedPtr mpBackBuffer;
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};
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}
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#endif /* _VCLCANVAS_CANVASBITMAPHELPER_HXX_ */
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