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