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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 <canvas/debug.hxx>
#include <tools/diagnose_ex.h>
#include <canvas/canvastools.hxx>
#include <math.h>
#include <com/sun/star/beans/NamedValue.hpp>
#include <com/sun/star/awt/Rectangle.hpp>
#include <com/sun/star/animations/ValuePair.hpp>
#include <com/sun/star/drawing/FillStyle.hpp>
#include <com/sun/star/drawing/LineStyle.hpp>
#include <com/sun/star/awt/FontSlant.hpp>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/range/b2drange.hxx>
#include <basegfx/vector/b2dvector.hxx>
#include <basegfx/vector/b2ivector.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/numeric/ftools.hxx>
#include <basegfx/tools/lerp.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <cppcanvas/basegfxfactory.hxx>
#include "unoview.hxx"
#include "smilfunctionparser.hxx"
#include "tools.hxx"
#include <limits>
using namespace ::com::sun::star;
namespace slideshow
{
namespace internal
{
namespace
{
class NamedValueComparator
{
public:
NamedValueComparator( const beans::NamedValue& rKey ) :
mrKey( rKey )
{
}
bool operator()( const beans::NamedValue& rValue ) const
{
return rValue.Name == mrKey.Name && rValue.Value == mrKey.Value;
}
private:
const beans::NamedValue& mrKey;
};
::basegfx::B2DHomMatrix getAttributedShapeTransformation( const ::basegfx::B2DRectangle& rShapeBounds,
const ShapeAttributeLayerSharedPtr& pAttr )
{
::basegfx::B2DHomMatrix aTransform;
const ::basegfx::B2DSize& rSize( rShapeBounds.getRange() );
const double nShearX( pAttr->isShearXAngleValid() ?
pAttr->getShearXAngle() :
0.0 );
const double nShearY( pAttr->isShearYAngleValid() ?
pAttr->getShearYAngle() :
0.0 );
const double nRotation( pAttr->isRotationAngleValid() ?
pAttr->getRotationAngle()*M_PI/180.0 :
0.0 );
// scale, shear and rotation pivot point is the shape
// center - adapt origin accordingly
aTransform.translate( -0.5, -0.5 );
// ensure valid size (zero size will inevitably lead
// to a singular transformation matrix)
aTransform.scale( ::basegfx::pruneScaleValue(
rSize.getX() ),
::basegfx::pruneScaleValue(
rSize.getY() ) );
const bool bNeedShearX( !::basegfx::fTools::equalZero(nShearX) );
const bool bNeedShearY( !::basegfx::fTools::equalZero(nShearY) );
const bool bNeedRotation( !::basegfx::fTools::equalZero(nRotation) );
if( bNeedRotation || bNeedShearX || bNeedShearY )
{
if( bNeedShearX )
aTransform.shearX( nShearX );
if( bNeedShearY )
aTransform.shearY( nShearY );
if( bNeedRotation )
aTransform.rotate( nRotation );
}
// move left, top corner back to position of the
// shape. Since we've already translated the
// center of the shape to the origin (the
// translate( -0.5, -0.5 ) above), translate to
// center of final shape position here.
aTransform.translate( rShapeBounds.getCenterX(),
rShapeBounds.getCenterY() );
return aTransform;
}
}
// Value extraction from Any
// =========================
/// extract unary double value from Any
bool extractValue( double& o_rValue,
const uno::Any& rSourceAny,
const ShapeSharedPtr& rShape,
const ::basegfx::B2DVector& rSlideBounds )
{
// try to extract numeric value (double, or smaller POD, like float or int)
if( (rSourceAny >>= o_rValue) )
{
// succeeded
return true;
}
// try to extract string
OUString aString;
if( !(rSourceAny >>= aString) )
return false; // nothing left to try
// parse the string into an ExpressionNode
try
{
// Parse string into ExpressionNode, eval node at time 0.0
o_rValue = (*SmilFunctionParser::parseSmilValue(
aString,
calcRelativeShapeBounds(rSlideBounds,
rShape->getBounds()) ))(0.0);
}
catch( ParseError& )
{
return false;
}
return true;
}
/// extract enum/constant group value from Any
bool extractValue( sal_Int32& o_rValue,
const uno::Any& rSourceAny,
const ShapeSharedPtr& /*rShape*/,
const ::basegfx::B2DVector& /*rSlideBounds*/ )
{
// try to extract numeric value (int, or smaller POD, like byte)
if( (rSourceAny >>= o_rValue) )
{
// succeeded
return true;
}
// okay, no plain int. Maybe one of the domain-specific enums?
drawing::FillStyle eFillStyle;
if( (rSourceAny >>= eFillStyle) )
{
o_rValue = sal::static_int_cast<sal_Int16>(eFillStyle);
// succeeded
return true;
}
drawing::LineStyle eLineStyle;
if( (rSourceAny >>= eLineStyle) )
{
o_rValue = sal::static_int_cast<sal_Int16>(eLineStyle);
// succeeded
return true;
}
awt::FontSlant eFontSlant;
if( (rSourceAny >>= eFontSlant) )
{
o_rValue = sal::static_int_cast<sal_Int16>(eFontSlant);
// succeeded
return true;
}
// nothing left to try. Failure
return false;
}
/// extract enum/constant group value from Any
bool extractValue( sal_Int16& o_rValue,
const uno::Any& rSourceAny,
const ShapeSharedPtr& rShape,
const ::basegfx::B2DVector& rSlideBounds )
{
sal_Int32 aValue;
if( !extractValue(aValue,rSourceAny,rShape,rSlideBounds) )
return false;
if( std::numeric_limits<sal_Int16>::max() < aValue ||
std::numeric_limits<sal_Int16>::min() > aValue )
{
return false;
}
o_rValue = static_cast<sal_Int16>(aValue);
return true;
}
/// extract color value from Any
bool extractValue( RGBColor& o_rValue,
const uno::Any& rSourceAny,
const ShapeSharedPtr& /*rShape*/,
const ::basegfx::B2DVector& /*rSlideBounds*/ )
{
// try to extract numeric value (double, or smaller POD, like float or int)
{
double nTmp = 0;
if( (rSourceAny >>= nTmp) )
{
sal_uInt32 aIntColor( static_cast< sal_uInt32 >(nTmp) );
// TODO(F2): Handle color values correctly, here
o_rValue = unoColor2RGBColor( aIntColor );
// succeeded
return true;
}
}
// try double sequence
{
uno::Sequence< double > aTmp;
if( (rSourceAny >>= aTmp) )
{
ENSURE_OR_THROW( aTmp.getLength() == 3,
"extractValue(): inappropriate length for RGB color value" );
o_rValue = RGBColor( aTmp[0], aTmp[1], aTmp[2] );
// succeeded
return true;
}
}
// try sal_Int32 sequence
{
uno::Sequence< sal_Int32 > aTmp;
if( (rSourceAny >>= aTmp) )
{
ENSURE_OR_THROW( aTmp.getLength() == 3,
"extractValue(): inappropriate length for RGB color value" );
// truncate to byte
o_rValue = RGBColor( ::cppcanvas::makeColor(
static_cast<sal_uInt8>(aTmp[0]),
static_cast<sal_uInt8>(aTmp[1]),
static_cast<sal_uInt8>(aTmp[2]),
255 ) );
// succeeded
return true;
}
}
// try sal_Int8 sequence
{
uno::Sequence< sal_Int8 > aTmp;
if( (rSourceAny >>= aTmp) )
{
ENSURE_OR_THROW( aTmp.getLength() == 3,
"extractValue(): inappropriate length for RGB color value" );
o_rValue = RGBColor( ::cppcanvas::makeColor( aTmp[0], aTmp[1], aTmp[2], 255 ) );
// succeeded
return true;
}
}
// try to extract string
OUString aString;
if( !(rSourceAny >>= aString) )
return false; // nothing left to try
// TODO(F2): Provide symbolic color values here
o_rValue = RGBColor( 0.5, 0.5, 0.5 );
return true;
}
/// extract color value from Any
bool extractValue( HSLColor& o_rValue,
const uno::Any& rSourceAny,
const ShapeSharedPtr& /*rShape*/,
const ::basegfx::B2DVector& /*rSlideBounds*/ )
{
// try double sequence
{
uno::Sequence< double > aTmp;
if( (rSourceAny >>= aTmp) )
{
ENSURE_OR_THROW( aTmp.getLength() == 3,
"extractValue(): inappropriate length for HSL color value" );
o_rValue = HSLColor( aTmp[0], aTmp[1], aTmp[2] );
// succeeded
return true;
}
}
// try sal_Int8 sequence
{
uno::Sequence< sal_Int8 > aTmp;
if( (rSourceAny >>= aTmp) )
{
ENSURE_OR_THROW( aTmp.getLength() == 3,
"extractValue(): inappropriate length for HSL color value" );
o_rValue = HSLColor( aTmp[0]*360.0/255.0, aTmp[1]/255.0, aTmp[2]/255.0 );
// succeeded
return true;
}
}
return false; // nothing left to try
}
/// extract plain string from Any
bool extractValue( OUString& o_rValue,
const uno::Any& rSourceAny,
const ShapeSharedPtr& /*rShape*/,
const ::basegfx::B2DVector& /*rSlideBounds*/ )
{
// try to extract string
if( !(rSourceAny >>= o_rValue) )
return false; // nothing left to try
return true;
}
/// extract bool value from Any
bool extractValue( bool& o_rValue,
const uno::Any& rSourceAny,
const ShapeSharedPtr& /*rShape*/,
const ::basegfx::B2DVector& /*rSlideBounds*/ )
{
bool nTmp;
// try to extract bool value
if( (rSourceAny >>= nTmp) )
{
o_rValue = nTmp;
// succeeded
return true;
}
// try to extract string
OUString aString;
if( !(rSourceAny >>= aString) )
return false; // nothing left to try
// we also take the strings "true" and "false",
// as well as "on" and "off" here
if( aString.equalsIgnoreAsciiCase("true") ||
aString.equalsIgnoreAsciiCase("on") )
{
o_rValue = true;
return true;
}
if( aString.equalsIgnoreAsciiCase("false") ||
aString.equalsIgnoreAsciiCase("off") )
{
o_rValue = false;
return true;
}
// ultimately failed.
return false;
}
/// extract double 2-tuple from Any
bool extractValue( ::basegfx::B2DTuple& o_rPair,
const uno::Any& rSourceAny,
const ShapeSharedPtr& rShape,
const ::basegfx::B2DVector& rSlideBounds )
{
animations::ValuePair aPair;
if( !(rSourceAny >>= aPair) )
return false;
double nFirst;
if( !extractValue( nFirst, aPair.First, rShape, rSlideBounds ) )
return false;
double nSecond;
if( !extractValue( nSecond, aPair.Second, rShape, rSlideBounds ) )
return false;
o_rPair.setX( nFirst );
o_rPair.setY( nSecond );
return true;
}
bool findNamedValue( uno::Sequence< beans::NamedValue > const& rSequence,
const beans::NamedValue& rSearchKey )
{
const beans::NamedValue* pArray = rSequence.getConstArray();
const size_t nLen( rSequence.getLength() );
if( nLen == 0 )
return false;
const beans::NamedValue* pFound = ::std::find_if( pArray,
pArray + nLen,
NamedValueComparator( rSearchKey ) );
if( pFound == rSequence.getConstArray() + nLen )
return false;
return true;
}
basegfx::B2DRange calcRelativeShapeBounds( const basegfx::B2DVector& rPageSize,
const basegfx::B2DRange& rShapeBounds )
{
return basegfx::B2DRange( rShapeBounds.getMinX() / rPageSize.getX(),
rShapeBounds.getMinY() / rPageSize.getY(),
rShapeBounds.getMaxX() / rPageSize.getX(),
rShapeBounds.getMaxY() / rPageSize.getY() );
}
// TODO(F2): Currently, the positional attributes DO NOT mirror the XShape properties.
// First and foremost, this is because we must operate with the shape boundrect,
// not position and size (the conversion between logic rect, snap rect and boundrect
// are non-trivial for draw shapes, and I won't duplicate them here). Thus, shapes
// rotated on the page will still have 0.0 rotation angle, as the metafile
// representation fetched over the API is our default zero case.
::basegfx::B2DHomMatrix getShapeTransformation( const ::basegfx::B2DRectangle& rShapeBounds,
const ShapeAttributeLayerSharedPtr& pAttr )
{
if( !pAttr )
{
const basegfx::B2DHomMatrix aTransform(basegfx::tools::createScaleTranslateB2DHomMatrix(
rShapeBounds.getWidth(), rShapeBounds.getHeight(),
rShapeBounds.getMinX(), rShapeBounds.getMinY()));
return aTransform;
}
else
{
return getAttributedShapeTransformation( rShapeBounds,
pAttr );
}
}
::basegfx::B2DHomMatrix getSpriteTransformation( const ::basegfx::B2DVector& rPixelSize,
const ::basegfx::B2DVector& rOrigSize,
const ShapeAttributeLayerSharedPtr& pAttr )
{
::basegfx::B2DHomMatrix aTransform;
if( pAttr )
{
const double nShearX( pAttr->isShearXAngleValid() ?
pAttr->getShearXAngle() :
0.0 );
const double nShearY( pAttr->isShearYAngleValid() ?
pAttr->getShearYAngle() :
0.0 );
const double nRotation( pAttr->isRotationAngleValid() ?
pAttr->getRotationAngle()*M_PI/180.0 :
0.0 );
// scale, shear and rotation pivot point is the
// sprite's pixel center - adapt origin accordingly
aTransform.translate( -0.5*rPixelSize.getX(),
-0.5*rPixelSize.getY() );
const ::basegfx::B2DSize aSize(
pAttr->isWidthValid() ? pAttr->getWidth() : rOrigSize.getX(),
pAttr->isHeightValid() ? pAttr->getHeight() : rOrigSize.getY() );
// ensure valid size (zero size will inevitably lead
// to a singular transformation matrix).
aTransform.scale( ::basegfx::pruneScaleValue(
aSize.getX() /
::basegfx::pruneScaleValue(
rOrigSize.getX() ) ),
::basegfx::pruneScaleValue(
aSize.getY() /
::basegfx::pruneScaleValue(
rOrigSize.getY() ) ) );
const bool bNeedShearX( !::basegfx::fTools::equalZero(nShearX) );
const bool bNeedShearY( !::basegfx::fTools::equalZero(nShearY) );
const bool bNeedRotation( !::basegfx::fTools::equalZero(nRotation) );
if( bNeedRotation || bNeedShearX || bNeedShearY )
{
if( bNeedShearX )
aTransform.shearX( nShearX );
if( bNeedShearY )
aTransform.shearY( nShearY );
if( bNeedRotation )
aTransform.rotate( nRotation );
}
// move left, top corner back to original position of
// the sprite (we've translated the center of the
// sprite to the origin above).
aTransform.translate( 0.5*rPixelSize.getX(),
0.5*rPixelSize.getY() );
}
// return identity transform for un-attributed
// shapes. This renders the sprite as-is, in it's
// document-supplied size.
return aTransform;
}
::basegfx::B2DRectangle getShapeUpdateArea( const ::basegfx::B2DRectangle& rUnitBounds,
const ::basegfx::B2DHomMatrix& rShapeTransform,
const ShapeAttributeLayerSharedPtr& pAttr )
{
::basegfx::B2DHomMatrix aTransform;
if( pAttr &&
pAttr->isCharScaleValid() &&
fabs(pAttr->getCharScale()) > 1.0 )
{
// enlarge shape bounds. Have to consider the worst
// case here (the text fully fills the shape)
const double nCharScale( pAttr->getCharScale() );
// center of scaling is the middle of the shape
aTransform.translate( -0.5, -0.5 );
aTransform.scale( nCharScale, nCharScale );
aTransform.translate( 0.5, 0.5 );
}
aTransform *= rShapeTransform;
::basegfx::B2DRectangle aRes;
// apply shape transformation to unit rect
return ::canvas::tools::calcTransformedRectBounds(
aRes,
rUnitBounds,
aTransform );
}
::basegfx::B2DRange getShapeUpdateArea( const ::basegfx::B2DRange& rUnitBounds,
const ::basegfx::B2DRange& rShapeBounds )
{
return ::basegfx::B2DRectangle(
basegfx::tools::lerp( rShapeBounds.getMinX(),
rShapeBounds.getMaxX(),
rUnitBounds.getMinX() ),
basegfx::tools::lerp( rShapeBounds.getMinY(),
rShapeBounds.getMaxY(),
rUnitBounds.getMinY() ),
basegfx::tools::lerp( rShapeBounds.getMinX(),
rShapeBounds.getMaxX(),
rUnitBounds.getMaxX() ),
basegfx::tools::lerp( rShapeBounds.getMinY(),
rShapeBounds.getMaxY(),
rUnitBounds.getMaxY() ) );
}
::basegfx::B2DRectangle getShapePosSize( const ::basegfx::B2DRectangle& rOrigBounds,
const ShapeAttributeLayerSharedPtr& pAttr )
{
// an already empty shape bound need no further
// treatment. In fact, any changes applied below would
// actually remove the special empty state, thus, don't
// change!
if( !pAttr ||
rOrigBounds.isEmpty() )
{
return rOrigBounds;
}
else
{
// cannot use maBounds anymore, attributes might have been
// changed by now.
// Have to use absolute values here, as negative sizes
// (aka mirrored shapes) _still_ have the same bounds,
// only with mirrored content.
::basegfx::B2DSize aSize;
aSize.setX( fabs( pAttr->isWidthValid() ?
pAttr->getWidth() :
rOrigBounds.getWidth() ) );
aSize.setY( fabs( pAttr->isHeightValid() ?
pAttr->getHeight() :
rOrigBounds.getHeight() ) );
::basegfx::B2DPoint aPos;
aPos.setX( pAttr->isPosXValid() ?
pAttr->getPosX() :
rOrigBounds.getCenterX() );
aPos.setY( pAttr->isPosYValid() ?
pAttr->getPosY() :
rOrigBounds.getCenterY() );
// the positional attribute retrieved from the
// ShapeAttributeLayer actually denotes the _middle_
// of the shape (do it as the PPTs do...)
return ::basegfx::B2DRectangle( aPos - 0.5*aSize,
aPos + 0.5*aSize );
}
}
RGBColor unoColor2RGBColor( sal_Int32 nColor )
{
return RGBColor(
::cppcanvas::makeColor(
// convert from API color to IntSRGBA color
// (0xAARRGGBB -> 0xRRGGBBAA)
static_cast< sal_uInt8 >( nColor >> 16U ),
static_cast< sal_uInt8 >( nColor >> 8U ),
static_cast< sal_uInt8 >( nColor ),
static_cast< sal_uInt8 >( nColor >> 24U ) ) );
}
sal_Int32 RGBAColor2UnoColor( ::cppcanvas::Color::IntSRGBA aColor )
{
return ::cppcanvas::makeColorARGB(
// convert from IntSRGBA color to API color
// (0xRRGGBBAA -> 0xAARRGGBB)
static_cast< sal_uInt8 >(0),
::cppcanvas::getRed(aColor),
::cppcanvas::getGreen(aColor),
::cppcanvas::getBlue(aColor));
}
void fillRect( const ::cppcanvas::CanvasSharedPtr& rCanvas,
const ::basegfx::B2DRectangle& rRect,
::cppcanvas::Color::IntSRGBA aFillColor )
{
const ::basegfx::B2DPolygon aPoly(
::basegfx::tools::createPolygonFromRect( rRect ));
::cppcanvas::PolyPolygonSharedPtr pPolyPoly(
::cppcanvas::BaseGfxFactory::getInstance().createPolyPolygon( rCanvas,
aPoly ) );
if( pPolyPoly )
{
pPolyPoly->setRGBAFillColor( aFillColor );
pPolyPoly->draw();
}
}
void initSlideBackground( const ::cppcanvas::CanvasSharedPtr& rCanvas,
const ::basegfx::B2ISize& rSize )
{
::cppcanvas::CanvasSharedPtr pCanvas( rCanvas->clone() );
// set transformation to identitiy (->device pixel)
pCanvas->setTransformation( ::basegfx::B2DHomMatrix() );
// #i42440# Fill the _full_ background in
// black. Since we had to extend the bitmap by one
// pixel, and the bitmap is initialized white,
// depending on the slide content a one pixel wide
// line will show to the bottom and the right.
fillRect( pCanvas,
::basegfx::B2DRectangle( 0.0, 0.0,
rSize.getX(),
rSize.getY() ),
0x000000FFU );
// fill the bounds rectangle in white. Subtract one pixel
// from both width and height, because the slide size is
// chosen one pixel larger than given by the drawing
// layer. This is because shapes with line style, that
// have the size of the slide would otherwise be cut
// off. OTOH, every other slide background (solid fill,
// gradient, bitmap) render one pixel less, thus revealing
// ugly white pixel to the right and the bottom.
fillRect( pCanvas,
::basegfx::B2DRectangle( 0.0, 0.0,
rSize.getX()-1,
rSize.getY()-1 ),
0xFFFFFFFFU );
}
::basegfx::B2DRectangle getAPIShapeBounds( const uno::Reference< drawing::XShape >& xShape )
{
uno::Reference< beans::XPropertySet > xPropSet( xShape,
uno::UNO_QUERY_THROW );
// read bound rect
awt::Rectangle aTmpRect;
if( !(xPropSet->getPropertyValue(
OUString("BoundRect") ) >>= aTmpRect) )
{
ENSURE_OR_THROW( false,
"getAPIShapeBounds(): Could not get \"BoundRect\" property from shape" );
}
return ::basegfx::B2DRectangle( aTmpRect.X,
aTmpRect.Y,
aTmpRect.X+aTmpRect.Width,
aTmpRect.Y+aTmpRect.Height );
}
/*
TODO(F1): When ZOrder someday becomes usable enable this
double getAPIShapePrio( const uno::Reference< drawing::XShape >& xShape )
{
uno::Reference< beans::XPropertySet > xPropSet( xShape,
uno::UNO_QUERY_THROW );
// read prio
sal_Int32 nPrio(0);
if( !(xPropSet->getPropertyValue(
OUString("ZOrder") ) >>= nPrio) )
{
ENSURE_OR_THROW( false,
"getAPIShapePrio(): Could not get \"ZOrder\" property from shape" );
}
// TODO(F2): Check and adapt the range of possible values here.
// Maybe we can also take the total number of shapes here
return nPrio / 65535.0;
}
*/
basegfx::B2IVector getSlideSizePixel( const basegfx::B2DVector& rSlideSize,
const UnoViewSharedPtr& pView )
{
ENSURE_OR_THROW(pView, "getSlideSizePixel(): invalid view");
// determine transformed page bounds
const basegfx::B2DRange aRect( 0,0,
rSlideSize.getX(),
rSlideSize.getY() );
basegfx::B2DRange aTmpRect;
canvas::tools::calcTransformedRectBounds( aTmpRect,
aRect,
pView->getTransformation() );
// #i42440# Returned slide size is one pixel too small, as
// rendering happens one pixel to the right and below the
// actual bound rect.
return basegfx::B2IVector(
basegfx::fround( aTmpRect.getRange().getX() ) + 1,
basegfx::fround( aTmpRect.getRange().getY() ) + 1 );
}
}
}
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