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libreoffice/xmloff/source/style/TransGradientStyle.cxx
Stephan Bergmann 314f15bff0 Extend loplugin:external to warn about enums 
To mitigate the dangers of silently breaking ADL when moving enums into unnamed
namespaces (see the commit message of 206b5b2661
"New loplugin:external"), note all functions that are affected.  (The plan is to
extend loplugin:external further to also warn about classes and class templates,
and the code to identify affected functions already takes that into account, so
some parts of that code are not actually relevant for enums.)

But it appears that none of the functions that are actually affected by the
changes in this commit relied on being found through ADL, so no adaptions were
necessary for them.

(clang::DeclContext::collectAllContexts is non-const, which recursively means
that External's Visit... functions must take non-const Decl*.  Which required
compilerplugins/clang/sharedvisitor/analyzer.cxx to be generalized to support
such Visit... functions with non-const Decl* parameters.)

Change-Id: Ia215291402bf850d43defdab3cff4db5b270d1bd
Reviewed-on: https://gerrit.libreoffice.org/83001
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2019-11-17 00:28:17 +01:00

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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 <TransGradientStyle.hxx>
#include <com/sun/star/awt/Gradient.hpp>
#include <sax/tools/converter.hxx>
#include <xmloff/nmspmap.hxx>
#include <xmloff/xmluconv.hxx>
#include <xmloff/xmlnmspe.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>
#include <sal/log.hxx>
#include <tools/color.hxx>
#include <xmloff/xmltkmap.hxx>
#include <xmloff/xmlexp.hxx>
#include <xmloff/xmlimp.hxx>
#include <xmloff/xmlement.hxx>
using namespace ::com::sun::star;
using namespace ::xmloff::token;
namespace {
enum SvXMLTokenMapAttrs
{
XML_TOK_GRADIENT_NAME,
XML_TOK_GRADIENT_DISPLAY_NAME,
XML_TOK_GRADIENT_STYLE,
XML_TOK_GRADIENT_CX,
XML_TOK_GRADIENT_CY,
XML_TOK_GRADIENT_START,
XML_TOK_GRADIENT_END,
XML_TOK_GRADIENT_ANGLE,
XML_TOK_GRADIENT_BORDER
};
}
SvXMLEnumMapEntry<awt::GradientStyle> const pXML_GradientStyle_Enum[] =
{
{ XML_GRADIENTSTYLE_LINEAR, awt::GradientStyle_LINEAR },
{ XML_GRADIENTSTYLE_AXIAL, awt::GradientStyle_AXIAL },
{ XML_GRADIENTSTYLE_RADIAL, awt::GradientStyle_RADIAL },
{ XML_GRADIENTSTYLE_ELLIPSOID, awt::GradientStyle_ELLIPTICAL },
{ XML_GRADIENTSTYLE_SQUARE, awt::GradientStyle_SQUARE },
{ XML_GRADIENTSTYLE_RECTANGULAR, awt::GradientStyle_RECT },
{ XML_TOKEN_INVALID, awt::GradientStyle(0) }
};
// Import
XMLTransGradientStyleImport::XMLTransGradientStyleImport( SvXMLImport& rImp )
: rImport(rImp)
{
}
XMLTransGradientStyleImport::~XMLTransGradientStyleImport()
{
}
void XMLTransGradientStyleImport::importXML(
const uno::Reference< xml::sax::XAttributeList >& xAttrList,
uno::Any& rValue,
OUString& rStrName )
{
OUString aDisplayName;
awt::Gradient aGradient;
aGradient.XOffset = 0;
aGradient.YOffset = 0;
aGradient.StartIntensity = 100;
aGradient.EndIntensity = 100;
aGradient.Angle = 0;
aGradient.Border = 0;
static const SvXMLTokenMapEntry aTrGradientAttrTokenMap[] =
{
{ XML_NAMESPACE_DRAW, XML_NAME, XML_TOK_GRADIENT_NAME },
{ XML_NAMESPACE_DRAW, XML_DISPLAY_NAME, XML_TOK_GRADIENT_DISPLAY_NAME },
{ XML_NAMESPACE_DRAW, XML_STYLE, XML_TOK_GRADIENT_STYLE },
{ XML_NAMESPACE_DRAW, XML_CX, XML_TOK_GRADIENT_CX },
{ XML_NAMESPACE_DRAW, XML_CY, XML_TOK_GRADIENT_CY },
{ XML_NAMESPACE_DRAW, XML_START, XML_TOK_GRADIENT_START },
{ XML_NAMESPACE_DRAW, XML_END, XML_TOK_GRADIENT_END },
{ XML_NAMESPACE_DRAW, XML_GRADIENT_ANGLE, XML_TOK_GRADIENT_ANGLE },
{ XML_NAMESPACE_DRAW, XML_GRADIENT_BORDER, XML_TOK_GRADIENT_BORDER,
XML_ELEMENT( DRAW, XML_BORDER ) },
// XML_GRADIENT_BORDER is a duplicate of XML_BORDER
XML_TOKEN_MAP_END
};
static const SvXMLTokenMap aTokenMap( aTrGradientAttrTokenMap );
SvXMLNamespaceMap& rNamespaceMap = rImport.GetNamespaceMap();
sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;
for( sal_Int16 i=0; i < nAttrCount; i++ )
{
const OUString& rFullAttrName = xAttrList->getNameByIndex( i );
OUString aStrAttrName;
sal_uInt16 nPrefix = rNamespaceMap.GetKeyByAttrName( rFullAttrName, &aStrAttrName );
const OUString& rStrValue = xAttrList->getValueByIndex( i );
sal_Int32 nTmpValue;
switch( aTokenMap.Get( nPrefix, aStrAttrName ) )
{
case XML_TOK_GRADIENT_NAME:
{
rStrName = rStrValue;
}
break;
case XML_TOK_GRADIENT_DISPLAY_NAME:
{
aDisplayName = rStrValue;
}
break;
case XML_TOK_GRADIENT_STYLE:
{
SvXMLUnitConverter::convertEnum( aGradient.Style, rStrValue, pXML_GradientStyle_Enum );
}
break;
case XML_TOK_GRADIENT_CX:
::sax::Converter::convertPercent( nTmpValue, rStrValue );
aGradient.XOffset = sal::static_int_cast< sal_Int16 >(nTmpValue);
break;
case XML_TOK_GRADIENT_CY:
::sax::Converter::convertPercent( nTmpValue, rStrValue );
aGradient.YOffset = sal::static_int_cast< sal_Int16 >(nTmpValue);
break;
case XML_TOK_GRADIENT_START:
{
sal_Int32 aStartTransparency;
::sax::Converter::convertPercent( aStartTransparency, rStrValue );
sal_uInt8 n = sal::static_int_cast< sal_uInt8 >(
( (100 - aStartTransparency) * 255 ) / 100 );
Color aColor( n, n, n );
aGradient.StartColor = static_cast<sal_Int32>( aColor );
}
break;
case XML_TOK_GRADIENT_END:
{
sal_Int32 aEndTransparency;
::sax::Converter::convertPercent( aEndTransparency, rStrValue );
sal_uInt8 n = sal::static_int_cast< sal_uInt8 >(
( (100 - aEndTransparency) * 255 ) / 100 );
Color aColor( n, n, n );
aGradient.EndColor = static_cast<sal_Int32>( aColor );
}
break;
case XML_TOK_GRADIENT_ANGLE:
{
bool const bSuccess =
::sax::Converter::convertAngle(aGradient.Angle, rStrValue);
SAL_INFO_IF(!bSuccess, "xmloff.style", "failed to import draw:angle");
}
break;
case XML_TOK_GRADIENT_BORDER:
::sax::Converter::convertPercent( nTmpValue, rStrValue );
aGradient.Border = sal::static_int_cast< sal_Int16 >(nTmpValue);
break;
default:
SAL_INFO("xmloff.style", "Unknown token at import transparency gradient style");
}
}
rValue <<= aGradient;
if( !aDisplayName.isEmpty() )
{
rImport.AddStyleDisplayName( XML_STYLE_FAMILY_SD_GRADIENT_ID, rStrName,
aDisplayName );
rStrName = aDisplayName;
}
}
// Export
XMLTransGradientStyleExport::XMLTransGradientStyleExport( SvXMLExport& rExp )
: rExport(rExp)
{
}
XMLTransGradientStyleExport::~XMLTransGradientStyleExport()
{
}
void XMLTransGradientStyleExport::exportXML(
const OUString& rStrName,
const uno::Any& rValue )
{
awt::Gradient aGradient;
if( !rStrName.isEmpty() )
{
if( rValue >>= aGradient )
{
OUString aStrValue;
OUStringBuffer aOut;
// Style
if( SvXMLUnitConverter::convertEnum( aOut, aGradient.Style, pXML_GradientStyle_Enum ) )
{
// Name
bool bEncoded = false;
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_NAME,
rExport.EncodeStyleName( rStrName,
&bEncoded ) );
if( bEncoded )
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_DISPLAY_NAME,
rStrName );
aStrValue = aOut.makeStringAndClear();
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_STYLE, aStrValue );
// Center x/y
if( aGradient.Style != awt::GradientStyle_LINEAR &&
aGradient.Style != awt::GradientStyle_AXIAL )
{
::sax::Converter::convertPercent(aOut, aGradient.XOffset);
aStrValue = aOut.makeStringAndClear();
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_CX, aStrValue );
::sax::Converter::convertPercent(aOut, aGradient.YOffset);
aStrValue = aOut.makeStringAndClear();
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_CY, aStrValue );
}
// Transparency start
Color aColor(aGradient.StartColor);
sal_Int32 aStartValue = 100 - static_cast<sal_Int32>(((aColor.GetRed() + 1) * 100) / 255);
::sax::Converter::convertPercent( aOut, aStartValue );
aStrValue = aOut.makeStringAndClear();
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_START, aStrValue );
// Transparency end
aColor = Color(aGradient.EndColor);
sal_Int32 aEndValue = 100 - static_cast<sal_Int32>(((aColor.GetRed() + 1) * 100) / 255);
::sax::Converter::convertPercent( aOut, aEndValue );
aStrValue = aOut.makeStringAndClear();
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_END, aStrValue );
// Angle
if( aGradient.Style != awt::GradientStyle_RADIAL )
{
::sax::Converter::convertAngle(aOut, aGradient.Angle);
aStrValue = aOut.makeStringAndClear();
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_GRADIENT_ANGLE, aStrValue );
}
// Border
::sax::Converter::convertPercent( aOut, aGradient.Border );
aStrValue = aOut.makeStringAndClear();
rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_GRADIENT_BORDER, aStrValue );
// Do Write
SvXMLElementExport rElem( rExport,
XML_NAMESPACE_DRAW, XML_OPACITY,
true, false );
}
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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