545 lines
25 KiB
C++
545 lines
25 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*************************************************************************
|
|
*
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* Copyright 2000, 2010 Oracle and/or its affiliates.
|
|
*
|
|
* OpenOffice.org - a multi-platform office productivity suite
|
|
*
|
|
* This file is part of OpenOffice.org.
|
|
*
|
|
* OpenOffice.org is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License version 3
|
|
* only, as published by the Free Software Foundation.
|
|
*
|
|
* OpenOffice.org is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License version 3 for more details
|
|
* (a copy is included in the LICENSE file that accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* version 3 along with OpenOffice.org. If not, see
|
|
* <http://www.openoffice.org/license.html>
|
|
* for a copy of the LGPLv3 License.
|
|
*
|
|
************************************************************************/
|
|
|
|
// MARKER(update_precomp.py): autogen include statement, do not remove
|
|
#include "precompiled_canvas.hxx"
|
|
|
|
#include <canvas/debug.hxx>
|
|
#include <tools/diagnose_ex.h>
|
|
|
|
#include <rtl/math.hxx>
|
|
#include <rtl/logfile.hxx>
|
|
|
|
#include <com/sun/star/geometry/RealSize2D.hpp>
|
|
#include <com/sun/star/geometry/RealPoint2D.hpp>
|
|
#include <com/sun/star/geometry/RealRectangle2D.hpp>
|
|
#include <com/sun/star/rendering/RenderState.hpp>
|
|
#include <com/sun/star/rendering/XCanvas.hpp>
|
|
#include <com/sun/star/rendering/XBitmap.hpp>
|
|
#include <com/sun/star/rendering/XPolyPolygon2D.hpp>
|
|
#include <com/sun/star/geometry/RealBezierSegment2D.hpp>
|
|
#include <com/sun/star/rendering/XIntegerBitmap.hpp>
|
|
|
|
#include <vcl/salbtype.hxx>
|
|
#include <vcl/bmpacc.hxx>
|
|
#include <vcl/bitmapex.hxx>
|
|
#include <vcl/metric.hxx>
|
|
#include <vcl/canvastools.hxx>
|
|
|
|
#include <basegfx/point/b2dpoint.hxx>
|
|
#include <basegfx/tuple/b2dtuple.hxx>
|
|
#include <basegfx/polygon/b2dpolygontools.hxx>
|
|
#include <basegfx/range/b2drectangle.hxx>
|
|
#include <basegfx/matrix/b2dhommatrix.hxx>
|
|
#include <basegfx/tools/canvastools.hxx>
|
|
#include <basegfx/numeric/ftools.hxx>
|
|
|
|
#include <canvas/canvastools.hxx>
|
|
#include <o3tl/compat_functional.hxx>
|
|
|
|
#include "impltools.hxx"
|
|
#include "canvasbitmap.hxx"
|
|
|
|
#include <numeric>
|
|
|
|
|
|
using namespace ::com::sun::star;
|
|
|
|
namespace vclcanvas
|
|
{
|
|
namespace tools
|
|
{
|
|
::BitmapEx bitmapExFromXBitmap( const uno::Reference< rendering::XBitmap >& xBitmap )
|
|
{
|
|
// TODO(F3): CanvasCustomSprite should also be tunnelled
|
|
// through (also implements XIntegerBitmap interface)
|
|
CanvasBitmap* pBitmapImpl = dynamic_cast< CanvasBitmap* >( xBitmap.get() );
|
|
|
|
if( pBitmapImpl )
|
|
{
|
|
return pBitmapImpl->getBitmap();
|
|
}
|
|
else
|
|
{
|
|
SpriteCanvas* pCanvasImpl = dynamic_cast< SpriteCanvas* >( xBitmap.get() );
|
|
if( pCanvasImpl && pCanvasImpl->getBackBuffer() )
|
|
{
|
|
// TODO(F3): mind the plain Canvas impl. Consolidate with CWS canvas05
|
|
const ::OutputDevice& rDev( pCanvasImpl->getBackBuffer()->getOutDev() );
|
|
const ::Point aEmptyPoint;
|
|
return rDev.GetBitmapEx( aEmptyPoint,
|
|
rDev.GetOutputSizePixel() );
|
|
}
|
|
|
|
// TODO(F2): add support for floating point bitmap formats
|
|
uno::Reference< rendering::XIntegerReadOnlyBitmap > xIntBmp(
|
|
xBitmap, uno::UNO_QUERY_THROW );
|
|
|
|
::BitmapEx aBmpEx = ::vcl::unotools::bitmapExFromXBitmap( xIntBmp );
|
|
if( !!aBmpEx )
|
|
return aBmpEx;
|
|
|
|
// TODO(F1): extract pixel from XBitmap interface
|
|
ENSURE_OR_THROW( false,
|
|
"bitmapExFromXBitmap(): could not extract bitmap" );
|
|
}
|
|
|
|
return ::BitmapEx();
|
|
}
|
|
|
|
bool setupFontTransform( ::Point& o_rPoint,
|
|
::Font& io_rVCLFont,
|
|
const rendering::ViewState& rViewState,
|
|
const rendering::RenderState& rRenderState,
|
|
::OutputDevice& rOutDev )
|
|
{
|
|
::basegfx::B2DHomMatrix aMatrix;
|
|
|
|
::canvas::tools::mergeViewAndRenderTransform(aMatrix,
|
|
rViewState,
|
|
rRenderState);
|
|
|
|
::basegfx::B2DTuple aScale;
|
|
::basegfx::B2DTuple aTranslate;
|
|
double nRotate, nShearX;
|
|
|
|
aMatrix.decompose( aScale, aTranslate, nRotate, nShearX );
|
|
|
|
// #i72417# detecting the 180 degree rotation case manually here.
|
|
if( aScale.getX() < 0.0 &&
|
|
aScale.getY() < 0.0 &&
|
|
basegfx::fTools::equalZero(nRotate) )
|
|
{
|
|
aScale *= -1.0;
|
|
nRotate += M_PI;
|
|
}
|
|
|
|
// query font metric _before_ tampering with width and height
|
|
if( !::rtl::math::approxEqual(aScale.getX(), aScale.getY()) )
|
|
{
|
|
// retrieve true font width
|
|
const sal_Int32 nFontWidth( rOutDev.GetFontMetric( io_rVCLFont ).GetWidth() );
|
|
|
|
const sal_Int32 nScaledFontWidth( ::basegfx::fround(nFontWidth * aScale.getX()) );
|
|
|
|
if( !nScaledFontWidth )
|
|
{
|
|
// scale is smaller than one pixel - disable text
|
|
// output altogether
|
|
return false;
|
|
}
|
|
|
|
io_rVCLFont.SetWidth( nScaledFontWidth );
|
|
}
|
|
|
|
if( !::rtl::math::approxEqual(aScale.getY(), 1.0) )
|
|
{
|
|
const sal_Int32 nFontHeight( io_rVCLFont.GetHeight() );
|
|
io_rVCLFont.SetHeight( ::basegfx::fround(nFontHeight * aScale.getY()) );
|
|
}
|
|
|
|
io_rVCLFont.SetOrientation( static_cast< short >( ::basegfx::fround(-fmod(nRotate, 2*M_PI)*(1800.0/M_PI)) ) );
|
|
|
|
// TODO(F2): Missing functionality in VCL: shearing
|
|
o_rPoint.X() = ::basegfx::fround(aTranslate.getX());
|
|
o_rPoint.Y() = ::basegfx::fround(aTranslate.getY());
|
|
|
|
return true;
|
|
}
|
|
|
|
bool isRectangle( const PolyPolygon& rPolyPoly )
|
|
{
|
|
// exclude some cheap cases first
|
|
if( rPolyPoly.Count() != 1 )
|
|
return false;
|
|
|
|
const ::Polygon& rPoly( rPolyPoly[0] );
|
|
|
|
sal_uInt16 nCount( rPoly.GetSize() );
|
|
if( nCount < 4 )
|
|
return false;
|
|
|
|
// delegate to basegfx
|
|
return ::basegfx::tools::isRectangle( rPoly.getB2DPolygon() );
|
|
}
|
|
|
|
|
|
// VCL-Canvas related
|
|
//---------------------------------------------------------------------
|
|
|
|
::Point mapRealPoint2D( const geometry::RealPoint2D& rPoint,
|
|
const rendering::ViewState& rViewState,
|
|
const rendering::RenderState& rRenderState )
|
|
{
|
|
::basegfx::B2DPoint aPoint( ::basegfx::unotools::b2DPointFromRealPoint2D(rPoint) );
|
|
|
|
::basegfx::B2DHomMatrix aMatrix;
|
|
aPoint *= ::canvas::tools::mergeViewAndRenderTransform(aMatrix,
|
|
rViewState,
|
|
rRenderState);
|
|
|
|
return ::vcl::unotools::pointFromB2DPoint( aPoint );
|
|
}
|
|
|
|
::PolyPolygon mapPolyPolygon( const ::basegfx::B2DPolyPolygon& rPoly,
|
|
const rendering::ViewState& rViewState,
|
|
const rendering::RenderState& rRenderState )
|
|
{
|
|
::basegfx::B2DHomMatrix aMatrix;
|
|
::canvas::tools::mergeViewAndRenderTransform(aMatrix,
|
|
rViewState,
|
|
rRenderState);
|
|
|
|
::basegfx::B2DPolyPolygon aTemp( rPoly );
|
|
|
|
aTemp.transform( aMatrix );
|
|
|
|
return ::PolyPolygon( aTemp );
|
|
}
|
|
|
|
::BitmapEx transformBitmap( const BitmapEx& rBitmap,
|
|
const ::basegfx::B2DHomMatrix& rTransform,
|
|
const uno::Sequence< double >& rDeviceColor,
|
|
ModulationMode eModulationMode )
|
|
{
|
|
RTL_LOGFILE_CONTEXT( aLog, "::vclcanvas::tools::transformBitmap()" );
|
|
RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::vclcanvas::tools::transformBitmap: 0x%X", &rBitmap );
|
|
|
|
// calc transformation and size of bitmap to be
|
|
// generated. Note, that the translational components are
|
|
// deleted from the transformation; this can be handled by
|
|
// an offset when painting the bitmap
|
|
const Size aBmpSize( rBitmap.GetSizePixel() );
|
|
::basegfx::B2DRectangle aDestRect;
|
|
|
|
bool bCopyBack( false );
|
|
|
|
// calc effective transformation for bitmap
|
|
const ::basegfx::B2DRectangle aSrcRect( 0, 0,
|
|
aBmpSize.Width(),
|
|
aBmpSize.Height() );
|
|
::canvas::tools::calcTransformedRectBounds( aDestRect,
|
|
aSrcRect,
|
|
rTransform );
|
|
|
|
// re-center bitmap, such that it's left, top border is
|
|
// aligned with (0,0). The method takes the given
|
|
// rectangle, and calculates a transformation that maps
|
|
// this rectangle unscaled to the origin.
|
|
::basegfx::B2DHomMatrix aLocalTransform;
|
|
::canvas::tools::calcRectToOriginTransform( aLocalTransform,
|
|
aSrcRect,
|
|
rTransform );
|
|
|
|
const bool bModulateColors( eModulationMode == MODULATE_WITH_DEVICECOLOR &&
|
|
rDeviceColor.getLength() > 2 );
|
|
const double nRedModulation( bModulateColors ? rDeviceColor[0] : 1.0 );
|
|
const double nGreenModulation( bModulateColors ? rDeviceColor[1] : 1.0 );
|
|
const double nBlueModulation( bModulateColors ? rDeviceColor[2] : 1.0 );
|
|
const double nAlphaModulation( bModulateColors && rDeviceColor.getLength() > 3 ?
|
|
rDeviceColor[3] : 1.0 );
|
|
|
|
Bitmap aSrcBitmap( rBitmap.GetBitmap() );
|
|
Bitmap aSrcAlpha;
|
|
|
|
// differentiate mask and alpha channel (on-off
|
|
// vs. multi-level transparency)
|
|
if( rBitmap.IsTransparent() )
|
|
{
|
|
if( rBitmap.IsAlpha() )
|
|
aSrcAlpha = rBitmap.GetAlpha().GetBitmap();
|
|
else
|
|
aSrcAlpha = rBitmap.GetMask();
|
|
}
|
|
|
|
Bitmap::ScopedReadAccess pReadAccess( aSrcBitmap );
|
|
Bitmap::ScopedReadAccess pAlphaReadAccess( rBitmap.IsTransparent() ?
|
|
aSrcAlpha.AcquireReadAccess() :
|
|
(BitmapReadAccess*)NULL,
|
|
aSrcAlpha );
|
|
|
|
if( pReadAccess.get() == NULL ||
|
|
(pAlphaReadAccess.get() == NULL && rBitmap.IsTransparent()) )
|
|
{
|
|
// TODO(E2): Error handling!
|
|
ENSURE_OR_THROW( false,
|
|
"transformBitmap(): could not access source bitmap" );
|
|
}
|
|
|
|
// mapping table, to translate pAlphaReadAccess' pixel
|
|
// values into destination alpha values (needed e.g. for
|
|
// paletted 1-bit masks).
|
|
sal_uInt8 aAlphaMap[256];
|
|
|
|
if( rBitmap.IsTransparent() )
|
|
{
|
|
if( rBitmap.IsAlpha() )
|
|
{
|
|
// source already has alpha channel - 1:1 mapping,
|
|
// i.e. aAlphaMap[0]=0,...,aAlphaMap[255]=255.
|
|
::o3tl::iota( aAlphaMap, &aAlphaMap[256], 0 );
|
|
}
|
|
else
|
|
{
|
|
// mask transparency - determine used palette colors
|
|
const BitmapColor& rCol0( pAlphaReadAccess->GetPaletteColor( 0 ) );
|
|
const BitmapColor& rCol1( pAlphaReadAccess->GetPaletteColor( 1 ) );
|
|
|
|
// shortcut for true luminance calculation
|
|
// (assumes that palette is grey-level)
|
|
aAlphaMap[0] = rCol0.GetRed();
|
|
aAlphaMap[1] = rCol1.GetRed();
|
|
}
|
|
}
|
|
// else: mapping table is not used
|
|
|
|
const Size aDestBmpSize( ::basegfx::fround( aDestRect.getWidth() ),
|
|
::basegfx::fround( aDestRect.getHeight() ) );
|
|
|
|
if( aDestBmpSize.Width() == 0 || aDestBmpSize.Height() == 0 )
|
|
return BitmapEx();
|
|
|
|
Bitmap aDstBitmap( aDestBmpSize, aSrcBitmap.GetBitCount(), &pReadAccess->GetPalette() );
|
|
Bitmap aDstAlpha( AlphaMask( aDestBmpSize ).GetBitmap() );
|
|
|
|
{
|
|
// just to be on the safe side: let the
|
|
// ScopedAccessors get destructed before
|
|
// copy-constructing the resulting bitmap. This will
|
|
// rule out the possibility that cached accessor data
|
|
// is not yet written back.
|
|
Bitmap::ScopedWriteAccess pWriteAccess( aDstBitmap );
|
|
Bitmap::ScopedWriteAccess pAlphaWriteAccess( aDstAlpha );
|
|
|
|
|
|
if( pWriteAccess.get() != NULL &&
|
|
pAlphaWriteAccess.get() != NULL &&
|
|
rTransform.isInvertible() )
|
|
{
|
|
// we're doing inverse mapping here, i.e. mapping
|
|
// points from the destination bitmap back to the
|
|
// source
|
|
::basegfx::B2DHomMatrix aTransform( aLocalTransform );
|
|
aTransform.invert();
|
|
|
|
// for the time being, always read as ARGB
|
|
for( int y=0; y<aDestBmpSize.Height(); ++y )
|
|
{
|
|
if( bModulateColors )
|
|
{
|
|
// TODO(P2): Have different branches for
|
|
// alpha-only modulation (color
|
|
// modulations eq. 1.0)
|
|
|
|
// modulate all color channels with given
|
|
// values
|
|
|
|
// differentiate mask and alpha channel (on-off
|
|
// vs. multi-level transparency)
|
|
if( rBitmap.IsTransparent() )
|
|
{
|
|
// Handling alpha and mask just the same...
|
|
for( int x=0; x<aDestBmpSize.Width(); ++x )
|
|
{
|
|
::basegfx::B2DPoint aPoint(x,y);
|
|
aPoint *= aTransform;
|
|
|
|
const int nSrcX( ::basegfx::fround( aPoint.getX() ) );
|
|
const int nSrcY( ::basegfx::fround( aPoint.getY() ) );
|
|
if( nSrcX < 0 || nSrcX >= aBmpSize.Width() ||
|
|
nSrcY < 0 || nSrcY >= aBmpSize.Height() )
|
|
{
|
|
pAlphaWriteAccess->SetPixel( y, x, BitmapColor(255) );
|
|
}
|
|
else
|
|
{
|
|
// modulate alpha with
|
|
// nAlphaModulation. This is a
|
|
// little bit verbose, formula
|
|
// is 255 - (255-pixAlpha)*nAlphaModulation
|
|
// (invert 'alpha' pixel value,
|
|
// to get the standard alpha
|
|
// channel behaviour)
|
|
pAlphaWriteAccess->SetPixel( y, x,
|
|
BitmapColor(
|
|
255U -
|
|
static_cast<sal_uInt8>(
|
|
nAlphaModulation*
|
|
(255U
|
|
- aAlphaMap[ pAlphaReadAccess->GetPixel(
|
|
nSrcY,
|
|
nSrcX ).GetIndex() ] ) + .5 ) ) );
|
|
|
|
BitmapColor aColor( pReadAccess->GetPixel( nSrcY,
|
|
nSrcX ) );
|
|
|
|
aColor.SetRed(
|
|
static_cast<sal_uInt8>(
|
|
nRedModulation *
|
|
aColor.GetRed() + .5 ));
|
|
aColor.SetGreen(
|
|
static_cast<sal_uInt8>(
|
|
nGreenModulation *
|
|
aColor.GetGreen() + .5 ));
|
|
aColor.SetBlue(
|
|
static_cast<sal_uInt8>(
|
|
nBlueModulation *
|
|
aColor.GetBlue() + .5 ));
|
|
|
|
pWriteAccess->SetPixel( y, x,
|
|
aColor );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( int x=0; x<aDestBmpSize.Width(); ++x )
|
|
{
|
|
::basegfx::B2DPoint aPoint(x,y);
|
|
aPoint *= aTransform;
|
|
|
|
const int nSrcX( ::basegfx::fround( aPoint.getX() ) );
|
|
const int nSrcY( ::basegfx::fround( aPoint.getY() ) );
|
|
if( nSrcX < 0 || nSrcX >= aBmpSize.Width() ||
|
|
nSrcY < 0 || nSrcY >= aBmpSize.Height() )
|
|
{
|
|
pAlphaWriteAccess->SetPixel( y, x, BitmapColor(255) );
|
|
}
|
|
else
|
|
{
|
|
// modulate alpha with
|
|
// nAlphaModulation. This is a
|
|
// little bit verbose, formula
|
|
// is 255 - 255*nAlphaModulation
|
|
// (invert 'alpha' pixel value,
|
|
// to get the standard alpha
|
|
// channel behaviour)
|
|
pAlphaWriteAccess->SetPixel( y, x,
|
|
BitmapColor(
|
|
255U -
|
|
static_cast<sal_uInt8>(
|
|
nAlphaModulation*255.0
|
|
+ .5 ) ) );
|
|
|
|
BitmapColor aColor( pReadAccess->GetPixel( nSrcY,
|
|
nSrcX ) );
|
|
|
|
aColor.SetRed(
|
|
static_cast<sal_uInt8>(
|
|
nRedModulation *
|
|
aColor.GetRed() + .5 ));
|
|
aColor.SetGreen(
|
|
static_cast<sal_uInt8>(
|
|
nGreenModulation *
|
|
aColor.GetGreen() + .5 ));
|
|
aColor.SetBlue(
|
|
static_cast<sal_uInt8>(
|
|
nBlueModulation *
|
|
aColor.GetBlue() + .5 ));
|
|
|
|
pWriteAccess->SetPixel( y, x,
|
|
aColor );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// differentiate mask and alpha channel (on-off
|
|
// vs. multi-level transparency)
|
|
if( rBitmap.IsTransparent() )
|
|
{
|
|
// Handling alpha and mask just the same...
|
|
for( int x=0; x<aDestBmpSize.Width(); ++x )
|
|
{
|
|
::basegfx::B2DPoint aPoint(x,y);
|
|
aPoint *= aTransform;
|
|
|
|
const int nSrcX( ::basegfx::fround( aPoint.getX() ) );
|
|
const int nSrcY( ::basegfx::fround( aPoint.getY() ) );
|
|
if( nSrcX < 0 || nSrcX >= aBmpSize.Width() ||
|
|
nSrcY < 0 || nSrcY >= aBmpSize.Height() )
|
|
{
|
|
pAlphaWriteAccess->SetPixel( y, x, BitmapColor(255) );
|
|
}
|
|
else
|
|
{
|
|
pAlphaWriteAccess->SetPixel( y, x,
|
|
aAlphaMap[
|
|
pAlphaReadAccess->GetPixel( nSrcY,
|
|
nSrcX ) ] );
|
|
|
|
pWriteAccess->SetPixel( y, x, pReadAccess->GetPixel( nSrcY,
|
|
nSrcX ) );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( int x=0; x<aDestBmpSize.Width(); ++x )
|
|
{
|
|
::basegfx::B2DPoint aPoint(x,y);
|
|
aPoint *= aTransform;
|
|
|
|
const int nSrcX( ::basegfx::fround( aPoint.getX() ) );
|
|
const int nSrcY( ::basegfx::fround( aPoint.getY() ) );
|
|
if( nSrcX < 0 || nSrcX >= aBmpSize.Width() ||
|
|
nSrcY < 0 || nSrcY >= aBmpSize.Height() )
|
|
{
|
|
pAlphaWriteAccess->SetPixel( y, x, BitmapColor(255) );
|
|
}
|
|
else
|
|
{
|
|
pAlphaWriteAccess->SetPixel( y, x, BitmapColor(0) );
|
|
pWriteAccess->SetPixel( y, x, pReadAccess->GetPixel( nSrcY,
|
|
nSrcX ) );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bCopyBack = true;
|
|
}
|
|
else
|
|
{
|
|
// TODO(E2): Error handling!
|
|
ENSURE_OR_THROW( false,
|
|
"transformBitmap(): could not access bitmap" );
|
|
}
|
|
}
|
|
|
|
if( bCopyBack )
|
|
return BitmapEx( aDstBitmap, AlphaMask( aDstAlpha ) );
|
|
else
|
|
return BitmapEx();
|
|
}
|
|
}
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|