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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 .
*/
#ifndef INCLUDED_VCL_INC_IMPLIMAGETREE_HXX
#define INCLUDED_VCL_INC_IMPLIMAGETREE_HXX
#include <sal/config.h>
#include <memory>
#include <unordered_map>
#include <utility>
#include <vector>
#include <com/sun/star/uno/Reference.hxx>
#include <rtl/ustring.hxx>
#include <vcl/bitmapex.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <vcl/ImageTree.hxx>
namespace com::sun::star::container {
class XNameAccess;
}
namespace com::sun::star::io {
class XInputStream;
}
struct ImageRequestParameters
{
OUString msName;
OUString msStyle;
BitmapEx& mrBitmap;
bool mbLocalized;
ImageLoadFlags meFlags;
bool mbWriteImageToCache;
sal_Int32 mnScalePercentage;
ImageRequestParameters(const OUString & rName, const OUString & rStyle, BitmapEx& rBitmap, bool bLocalized,
ImageLoadFlags eFlags, sal_Int32 nScalePercentage)
: msName(rName)
, msStyle(rStyle)
, mrBitmap(rBitmap)
, mbLocalized(bLocalized)
, meFlags(eFlags)
, mbWriteImageToCache(false)
, mnScalePercentage(nScalePercentage)
{}
bool convertToDarkTheme();
sal_Int32 scalePercentage();
};
class ImplImageTree
{
public:
ImplImageTree();
~ImplImageTree();
OUString getImageUrl(
OUString const & name, OUString const & style, OUString const & lang);
css::uno::Reference<css::io::XInputStream> getImageXInputStream(OUString const & rName,
OUString const & rStyle, OUString const & rLang);
std::shared_ptr<SvMemoryStream> getImageStream(
OUString const & rName, OUString const & rStyle, OUString const & rLang);
bool loadImage(
OUString const & name, OUString const & style,
BitmapEx & bitmap, bool localized,
const ImageLoadFlags eFlags,
sal_Int32 nScalePercentage = -1);
/** a crude form of life cycle control (called from DeInitVCL; otherwise,
* if the ImplImageTree singleton were destroyed during exit that would
* be too late for the destructors of the bitmaps in maIconCache)*/
void shutdown();
css::uno::Reference< css::container::XNameAccess > const & getNameAccess();
private:
ImplImageTree(const ImplImageTree&) = delete;
ImplImageTree& operator=(const ImplImageTree&) = delete;
typedef std::unordered_map<OUString, std::pair<bool,BitmapEx>> IconCache;
typedef std::unordered_map<sal_Int32, IconCache> ScaledIconCache;
typedef std::unordered_map<OUString, OUString> IconLinkHash;
struct IconSet
{
OUString maURL;
css::uno::Reference<css::container::XNameAccess> maNameAccess;
ScaledIconCache maScaledIconCaches;
IconLinkHash maLinkHash;
IconSet()
{
maLinkHash.reserve(50);
}
IconSet(const OUString & rURL)
: maURL(rURL)
{
maLinkHash.reserve(50);
}
};
/// Remember all the (used) icon styles and individual icons in them.
/// Map between the theme name(s) and the content.
std::unordered_map<OUString, IconSet> maIconSets;
/// Style used for the current operations; switches switch several times during fallback search.
OUString maCurrentStyle;
IconSet& getCurrentIconSet()
{
return maIconSets[maCurrentStyle];
}
bool doLoadImage(ImageRequestParameters& rParameters);
std::vector<OUString> getPaths(OUString const & name, LanguageTag const & rLanguageTag);
bool checkPathAccess();
void setStyle(OUString const & rStyle);
void createStyle();
IconCache &getIconCache(const ImageRequestParameters& rParameters);
bool iconCacheLookup(ImageRequestParameters& rParameters);
bool findImage(std::vector<OUString> const & rPaths, ImageRequestParameters& rParameters);
void loadImageLinks();
void parseLinkFile(std::shared_ptr<SvStream> const & aStream);
/// Return name of a real .png according to links.txt.
OUString const & getRealImageName(OUString const & rName);
/** Return name of the fallback style for the provided one.
Must not be cyclic :-) The last theme in the chain returns an empty string.
*/
static OUString fallbackStyle(std::u16string_view rStyle);
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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