178 lines
6.8 KiB
C++
178 lines
6.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <canvas/debug.hxx>
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#include <tools/diagnose_ex.h>
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#include <canvas/verbosetrace.hxx>
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#include <cppuhelper/supportsservice.hxx>
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#include <rtl/math.hxx>
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#include <vcl/outdev.hxx>
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#include <vcl/bitmap.hxx>
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#include <vcl/alpha.hxx>
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#include <vcl/bitmapex.hxx>
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#include <vcl/canvastools.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/point/b2dpoint.hxx>
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#include <basegfx/tools/canvastools.hxx>
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#include <basegfx/polygon/b2dpolygon.hxx>
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#include <basegfx/polygon/b2dpolygontools.hxx>
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#include <basegfx/polygon/b2dpolypolygontools.hxx>
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#include <basegfx/numeric/ftools.hxx>
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#include <canvas/canvastools.hxx>
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#include "canvascustomsprite.hxx"
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using namespace ::com::sun::star;
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namespace vclcanvas
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{
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CanvasCustomSprite::CanvasCustomSprite( const geometry::RealSize2D& rSpriteSize,
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rendering::XGraphicDevice& rDevice,
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const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
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const OutDevProviderSharedPtr& rOutDevProvider,
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bool bShowSpriteBounds )
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{
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ENSURE_OR_THROW( rOwningSpriteCanvas.get() &&
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rOutDevProvider,
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"CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
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// setup back buffer
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const ::Size aSize(
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static_cast<sal_Int32>( ::std::max( 1.0,
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ceil( rSpriteSize.Width ))), // round up to nearest int,
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// enforce sprite to have at
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// least (1,1) pixel size
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static_cast<sal_Int32>( ::std::max( 1.0,
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ceil( rSpriteSize.Height ))) );
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// create content backbuffer in screen depth
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BackBufferSharedPtr pBackBuffer( new BackBuffer( rOutDevProvider->getOutDev() ) );
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pBackBuffer->setSize( aSize );
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// create mask backbuffer, with one bit color depth
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BackBufferSharedPtr pBackBufferMask( new BackBuffer( rOutDevProvider->getOutDev(),
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true ) );
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pBackBufferMask->setSize( aSize );
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// TODO(F1): Implement alpha vdev (could prolly enable
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// antialiasing again, then)
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// disable font antialiasing (causes ugly shadows otherwise)
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pBackBuffer->getOutDev().SetAntialiasing( ANTIALIASING_DISABLE_TEXT );
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pBackBufferMask->getOutDev().SetAntialiasing( ANTIALIASING_DISABLE_TEXT );
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// set mask vdev drawmode, such that everything is painted
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// black. That leaves us with a binary image, white for
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// background, black for painted content
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pBackBufferMask->getOutDev().SetDrawMode( DRAWMODE_BLACKLINE | DRAWMODE_BLACKFILL | DRAWMODE_BLACKTEXT |
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DRAWMODE_BLACKGRADIENT | DRAWMODE_BLACKBITMAP );
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// setup canvas helper
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// always render into back buffer, don't preserve state (it's
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// our private VDev, after all), have notion of alpha
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maCanvasHelper.init( rDevice,
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pBackBuffer,
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false,
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true );
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maCanvasHelper.setBackgroundOutDev( pBackBufferMask );
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// setup sprite helper
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maSpriteHelper.init( rSpriteSize,
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rOwningSpriteCanvas,
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pBackBuffer,
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pBackBufferMask,
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bShowSpriteBounds );
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// clear sprite to 100% transparent
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maCanvasHelper.clear();
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}
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OUString SAL_CALL CanvasCustomSprite::getImplementationName() throw( uno::RuntimeException, std::exception )
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{
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return OUString( "VCLCanvas.CanvasCustomSprite" );
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}
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sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName ) throw( uno::RuntimeException, std::exception )
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{
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return cppu::supportsService( this, ServiceName );
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}
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uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames() throw( uno::RuntimeException, std::exception )
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{
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uno::Sequence< OUString > aRet(1);
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aRet[0] = "com.sun.star.rendering.CanvasCustomSprite";
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return aRet;
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}
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// Sprite
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void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
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bool bBufferedUpdate ) const
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{
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SolarMutexGuard aGuard;
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redraw( rOutDev, maSpriteHelper.getPosPixel(), bBufferedUpdate );
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}
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void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
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const ::basegfx::B2DPoint& rOrigOutputPos,
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bool bBufferedUpdate ) const
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{
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SolarMutexGuard aGuard;
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maSpriteHelper.redraw( rOutDev,
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rOrigOutputPos,
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mbSurfaceDirty,
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bBufferedUpdate );
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mbSurfaceDirty = false;
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}
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bool CanvasCustomSprite::repaint( const GraphicObjectSharedPtr& rGrf,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState,
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const ::Point& rPt,
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const ::Size& rSz,
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const GraphicAttr& rAttr ) const
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{
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SolarMutexGuard aGuard;
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mbSurfaceDirty = true;
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return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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