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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 <sal/log.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/numeric/ftools.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/polygon/b2dpolygoncutandtouch.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolygontriangulator.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/utils/canvastools.hxx>
#include <rtl/math.hxx>
#include <comphelper/diagnose_ex.hxx>
#include <canvas/canvastools.hxx>
#include "dx_canvascustomsprite.hxx"
#include "dx_impltools.hxx"
#include "dx_spritehelper.hxx"
using namespace ::com::sun::star;
namespace dxcanvas
{
SpriteHelper::SpriteHelper() :
mpSpriteCanvas(),
mpBitmap(),
mbTextureDirty( true ),
mbShowSpriteBounds( false )
{
}
void SpriteHelper::init( const geometry::RealSize2D& rSpriteSize,
const SpriteCanvasRef& rSpriteCanvas,
const IDXRenderModuleSharedPtr& rRenderModule,
const DXSurfaceBitmapSharedPtr& rBitmap,
bool bShowSpriteBounds )
{
ENSURE_OR_THROW( rSpriteCanvas &&
rRenderModule &&
rBitmap,
"SpriteHelper::init(): Invalid device, sprite canvas or surface" );
mpSpriteCanvas = rSpriteCanvas;
mpBitmap = rBitmap;
mbTextureDirty = true;
mbShowSpriteBounds = bShowSpriteBounds;
// also init base class
CanvasCustomSpriteHelper::init( rSpriteSize,
rSpriteCanvas );
}
void SpriteHelper::disposing()
{
mpBitmap.reset();
mpSpriteCanvas.clear();
// forward to parent
CanvasCustomSpriteHelper::disposing();
}
::basegfx::B2DPolyPolygon SpriteHelper::polyPolygonFromXPolyPolygon2D( uno::Reference< rendering::XPolyPolygon2D >& xPoly ) const
{
return tools::polyPolygonFromXPolyPolygon2D( xPoly );
}
bool SpriteHelper::needRedraw() const
{
if( !mpBitmap ||
!mpSpriteCanvas )
{
return false; // we're disposed, no redraw necessary
}
if( !isActive() ||
::basegfx::fTools::equalZero( getAlpha() ) )
{
return false; // sprite is invisible
}
return true;
}
void SpriteHelper::redraw( bool& io_bSurfaceDirty ) const
{
if( !mpBitmap ||
!mpSpriteCanvas )
{
return; // we're disposed
}
const ::basegfx::B2DPoint& rPos( getPosPixel() );
const double fAlpha( getAlpha() );
if( isActive() &&
!::basegfx::fTools::equalZero( fAlpha ) )
{
// TODO(Q2): For the time being, Device does not take a target
// surface, but always unconditionally renders to the
// background buffer.
// log output pos in device pixel
SAL_INFO("canvas.directx", "SpriteHelper::redraw(): output pos is (" <<
rPos.getX() << "," << rPos.getY() << ")" );
const ::basegfx::B2DVector& rSize( getSizePixel() );
const ::basegfx::B2DHomMatrix& rTransform( getTransformation() );
const uno::Reference< rendering::XPolyPolygon2D >& xClip( getClip() );
mbTextureDirty = false;
io_bSurfaceDirty = false; // state taken, and processed.
::basegfx::B2DPolyPolygon aClipPath; // empty for no clip
bool bIsClipRectangular( false ); // false, if no
// clip, or clip
// is complex
// setup and apply clip (if any)
// =================================
if( xClip.is() )
{
aClipPath = tools::polyPolygonFromXPolyPolygon2D( xClip );
const sal_Int32 nNumClipPolygons( aClipPath.count() );
if( nNumClipPolygons )
{
// TODO(P2): hold rectangle attribute directly
// at the XPolyPolygon2D
// check whether the clip is rectangular
if( nNumClipPolygons == 1 )
if( ::basegfx::utils::isRectangle( aClipPath.getB2DPolygon( 0 ) ) )
bIsClipRectangular = true;
}
}
const ::basegfx::B2DRectangle aSourceRect( 0.0,
0.0,
rSize.getX(),
rSize.getY() );
// draw simple rectangular area if no clip is set.
if( !aClipPath.count() )
{
mpBitmap->draw(fAlpha,rPos,rTransform);
}
else if( bIsClipRectangular )
{
// apply a simple rect clip
// ========================
::basegfx::B2DRectangle aClipBounds(
::basegfx::utils::getRange( aClipPath ) );
aClipBounds.intersect( aSourceRect );
mpBitmap->draw(fAlpha,rPos,aClipBounds,rTransform);
}
else
{
// apply clip the hard way
// =======================
mpBitmap->draw(fAlpha,rPos,aClipPath,rTransform);
}
if( mbShowSpriteBounds )
{
if( aClipPath.count() )
{
// TODO(F2): Re-enable debug output
}
}
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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