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/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"
#include "DGColorNameLookUp.hxx"
#include <com/sun/star/container/XNameContainer.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <comphelper/processfactory.hxx>
#include <vos/mutex.hxx>
#include <vcl/svapp.hxx>
using ::rtl::OUString;
using namespace ::com::sun::star;
namespace accessibility {
// Initialize the class instance with NULL. A true instance is created only
// when the static <member>Instance</member> is called for the first time.
DGColorNameLookUp* DGColorNameLookUp::mpInstance = NULL;
DGColorNameLookUp& DGColorNameLookUp::Instance (void)
{
// Using double check pattern to make sure that exactly one instance of
// the shape type handler is instantiated.
if (mpInstance == NULL)
{
::vos::OGuard aGuard (::Application::GetSolarMutex());
if (mpInstance == NULL)
{
// Create the single instance of the color name look up.
mpInstance = new DGColorNameLookUp();
}
}
return *mpInstance;
}
OUString DGColorNameLookUp::LookUpColor (long int nColor) const
{
OUString sColorName;
tColorValueToNameMap::const_iterator I;
I = maColorValueToNameMap.find (nColor);
if (I != maColorValueToNameMap.end())
// Found the color value. Return the associated name.
sColorName = I->second;
else
{
// Did not find the given color. Append its rgb tuple to the
// description.
::rtl::OUStringBuffer sNameBuffer;
sNameBuffer.append (sal_Unicode('#'));
sNameBuffer.append (nColor, 16);
sColorName = sNameBuffer.makeStringAndClear();
}
return sColorName;
}
DGColorNameLookUp::DGColorNameLookUp (void)
{
uno::Sequence<OUString> aNames;
uno::Reference<container::XNameAccess> xNA;
try
{
// Create color table in which to look up the given color.
uno::Reference<container::XNameContainer> xColorTable (
::comphelper::getProcessServiceFactory()->createInstance(
OUString::createFromAscii("com.sun.star.drawing.ColorTable")),
uno::UNO_QUERY);
// Get list of color names in order to iterate over the color table.
xNA = uno::Reference<container::XNameAccess>(xColorTable, uno::UNO_QUERY);
if (xNA.is())
{
// Look the solar mutex here as workarround for missing lock in
// called function.
::vos::OGuard aGuard (::Application::GetSolarMutex());
aNames = xNA->getElementNames();
}
}
catch (uno::RuntimeException e)
{
// When an excpetion occured then whe have an empty name sequence
// and the loop below is not entered.
}
// Fill the map to convert from numerical color values to names.
if (xNA.is())
for (long int i=0; i<aNames.getLength(); i++)
{
// Get the numerical value for the i-th color name.
try
{
uno::Any aColor (xNA->getByName (aNames[i]));
long nColor = 0;
aColor >>= nColor;
maColorValueToNameMap[nColor] = aNames[i];
}
catch (uno::RuntimeException e)
{
// Ignore the exception: the color who lead to the excpetion
// is not included into the map.
}
}
}
DGColorNameLookUp::~DGColorNameLookUp (void)
{
maColorValueToNameMap.clear();
}
} // end of namespace accessibility
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