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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 <config_folders.h>
#include "sal/config.h"
#include "com/sun/star/container/XNameAccess.hpp"
#include "com/sun/star/io/XInputStream.hpp"
#include "com/sun/star/lang/Locale.hpp"
#include "com/sun/star/lang/XMultiServiceFactory.hpp"
#include "com/sun/star/packages/zip/ZipFileAccess.hpp"
#include "com/sun/star/uno/Exception.hpp"
#include "com/sun/star/uno/RuntimeException.hpp"
#include "com/sun/star/uno/Sequence.hxx"
#include "comphelper/processfactory.hxx"
#include "osl/file.hxx"
#include "osl/diagnose.h"
#include "rtl/bootstrap.hxx"
#include "rtl/uri.hxx"
#include "tools/stream.hxx"
#include "tools/urlobj.hxx"
#include <vcl/bitmapex.hxx>
#include <vcl/dibtools.hxx>
#include <vcl/implimagetree.hxx>
#include <vcl/pngread.hxx>
#include <vcl/settings.hxx>
#include <vcl/svapp.hxx>
#include <vcldemo-debug.hxx>
#include <vcl/BitmapProcessor.hxx>
#include <vcl/BitmapTools.hxx>
#include <vcl/pngwrite.hxx>
namespace
{
OUString convertLcTo32Path(OUString const & rPath)
{
OUString aResult;
if (rPath.lastIndexOf('/') != -1)
{
sal_Int32 nCopyFrom = rPath.lastIndexOf('/') + 1;
OUString sFile = rPath.copy(nCopyFrom);
OUString sDir = rPath.copy(0, rPath.lastIndexOf('/'));
if (!sFile.isEmpty() && sFile.startsWith("lc_"))
{
aResult = sDir + "/32/" + sFile.copy(3);
}
}
return aResult;
}
OUString createPath(OUString const & name, sal_Int32 pos, OUString const & locale)
{
return name.copy(0, pos + 1) + locale + name.copy(pos);
}
OUString getIconThemeFolderUrl()
{
OUString sUrl("$BRAND_BASE_DIR/" LIBO_SHARE_FOLDER "/config/");
rtl::Bootstrap::expandMacros(sUrl);
return sUrl;
}
OUString getIconCacheUrl(OUString const & sStyle, OUString const & sVariant, OUString const & sName)
{
OUString sUrl("${$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("bootstrap") ":UserInstallation}/cache/");
sUrl += sStyle + "/" + sVariant + "/" + sName;
rtl::Bootstrap::expandMacros(sUrl);
return sUrl;
}
OUString createIconCacheUrl(OUString const & sStyle, OUString const & sVariant, OUString const & sName)
{
OUString sUrl(getIconCacheUrl(sStyle, sVariant, sName));
OUString sDir = sUrl.copy(0, sUrl.lastIndexOf('/'));
osl::Directory::createPath(sDir);
return sUrl;
}
bool urlExists(OUString const & sUrl)
{
osl::File aFile(sUrl);
osl::FileBase::RC eRC = aFile.open(osl_File_OpenFlag_Read);
if (osl::FileBase::E_None == eRC)
return true;
return false;
}
OUString getNameNoExtension(OUString const & sName)
{
sal_Int32 nDotPosition = sName.lastIndexOf('.');
return sName.copy(0, nDotPosition);
}
std::shared_ptr<SvStream> wrapStream(css::uno::Reference< css::io::XInputStream > const & stream)
{
// This could use SvInputStream instead if that did not have a broken
// SeekPos implementation for an XInputStream that is not also XSeekable
// (cf. "@@@" at tags/DEV300_m37/svtools/source/misc1/strmadpt.cxx@264807
// l. 593):
OSL_ASSERT(stream.is());
std::shared_ptr<SvStream> s(std::make_shared<SvMemoryStream>());
for (;;)
{
sal_Int32 const size = 2048;
css::uno::Sequence< sal_Int8 > data(size);
sal_Int32 n = stream->readBytes(data, size);
s->WriteBytes(data.getConstArray(), n);
if (n < size)
break;
}
s->Seek(0);
return s;
}
void loadImageFromStream(std::shared_ptr<SvStream> const & xStream, OUString const & rPath, BitmapEx & rBitmap, const ImageLoadFlags eFlags)
{
static bool bIconsForDarkTheme = !!getenv("VCL_ICONS_FOR_DARK_THEME");
bool bConvertToDarkTheme = bIconsForDarkTheme;
if (eFlags & ImageLoadFlags::IgnoreDarkTheme)
bConvertToDarkTheme = false;
float aScaleFactor = Application::GetDefaultDevice()->GetDPIScaleFactor();
if (eFlags & ImageLoadFlags::IgnoreScalingFactor)
aScaleFactor = 1.0f;
if (rPath.endsWith(".png"))
{
vcl::PNGReader aPNGReader(*xStream);
aPNGReader.SetIgnoreGammaChunk( true );
rBitmap = aPNGReader.Read();
}
else if (rPath.endsWith(".svg"))
{
vcl::bitmap::loadFromSvg(*xStream.get(), rPath, rBitmap, double(aScaleFactor));
if (bConvertToDarkTheme)
rBitmap = BitmapProcessor::createLightImage(rBitmap);
return;
}
else
{
ReadDIBBitmapEx(rBitmap, *xStream);
}
if (bConvertToDarkTheme)
rBitmap = BitmapProcessor::createLightImage(rBitmap);
if (aScaleFactor > 1.0f)
rBitmap.Scale(double(aScaleFactor), double(aScaleFactor), BmpScaleFlag::Fast);
}
}
ImplImageTree & ImplImageTree::get() {
static ImplImageTree s_ImplImageTree;
return s_ImplImageTree;
}
ImplImageTree::ImplImageTree()
{
}
ImplImageTree::~ImplImageTree()
{
}
std::vector<OUString> ImplImageTree::getPaths(OUString const & name, LanguageTag& rLanguageTag)
{
std::vector<OUString> sPaths;
sal_Int32 pos = name.lastIndexOf('/');
if (pos != -1)
{
for (OUString& rFallback : rLanguageTag.getFallbackStrings(true))
{
OUString aFallbackName = getNameNoExtension(getRealImageName(createPath(name, pos, rFallback)));
sPaths.push_back(aFallbackName + ".png");
sPaths.push_back(aFallbackName + ".svg");
}
}
OUString aRealName = getNameNoExtension(getRealImageName(name));
sPaths.push_back(aRealName + ".png");
sPaths.push_back(aRealName + ".svg");
return sPaths;
}
OUString ImplImageTree::getImageUrl(OUString const & rName, OUString const & rStyle, OUString const & rLang)
{
OUString aStyle(rStyle);
while (!aStyle.isEmpty())
{
try
{
setStyle(aStyle);
if (checkPathAccess())
{
IconSet& rIconSet = getCurrentIconSet();
const css::uno::Reference<css::container::XNameAccess>& rNameAccess = rIconSet.maNameAccess;
LanguageTag aLanguageTag(rLang);
for (OUString& rPath: getPaths(rName, aLanguageTag))
{
if (rNameAccess->hasByName(rPath))
{
return "vnd.sun.star.zip://"
+ rtl::Uri::encode(rIconSet.maURL, rtl_UriCharClassRegName,
rtl_UriEncodeIgnoreEscapes, RTL_TEXTENCODING_UTF8)
+ "/" + rPath;
}
}
}
}
catch (const css::uno::Exception & e)
{
SAL_INFO("vcl", "exception " << e.Message);
}
aStyle = fallbackStyle(aStyle);
}
return OUString();
}
OUString ImplImageTree::fallbackStyle(const OUString& rsStyle)
{
OUString sResult;
if (rsStyle == "galaxy")
sResult = "";
else if (rsStyle == "industrial" || rsStyle == "tango" || rsStyle == "breeze")
sResult = "galaxy";
else if (rsStyle == "sifr" || rsStyle == "breeze_dark")
sResult = "breeze";
else
sResult = "tango";
return sResult;
}
bool ImplImageTree::loadImage(OUString const & name, OUString const & style, BitmapEx & rBitmap, bool localized, const ImageLoadFlags eFlags)
{
OUString aStyle(style);
while (!aStyle.isEmpty())
{
try
{
if (doLoadImage(name, aStyle, rBitmap, localized, eFlags))
return true;
}
catch (css::uno::RuntimeException &)
{}
aStyle = fallbackStyle(aStyle);
}
return false;
}
bool ImplImageTree::loadDefaultImage(OUString const & style, BitmapEx& bitmap, const ImageLoadFlags eFlags)
{
return doLoadImage("res/grafikde.png", style, bitmap, false, eFlags);
}
OUString createVariant(const ImageLoadFlags eFlags)
{
static bool bIconsForDarkTheme = !!getenv("VCL_ICONS_FOR_DARK_THEME");
bool bConvertToDarkTheme = bIconsForDarkTheme;
if (eFlags & ImageLoadFlags::IgnoreDarkTheme)
bConvertToDarkTheme = false;
sal_Int32 aScalePercentage = Application::GetDefaultDevice()->GetDPIScalePercentage();
if (eFlags & ImageLoadFlags::IgnoreScalingFactor)
aScalePercentage = 100;
OUString aVariant;
if (aScalePercentage == 100 && !bConvertToDarkTheme)
return aVariant;
aVariant = OUString::number(aScalePercentage);
if (bConvertToDarkTheme)
aVariant += "-dark";
return aVariant;
}
bool loadDiskCachedVersion(OUString const & sStyle, OUString const & sVariant, OUString const & sName, BitmapEx & rBitmapEx)
{
OUString sUrl(getIconCacheUrl(sStyle, sVariant, sName));
if (!urlExists(sUrl))
return false;
SvFileStream aFileStream(sUrl, StreamMode::READ);
vcl::PNGReader aPNGReader(aFileStream);
aPNGReader.SetIgnoreGammaChunk( true );
rBitmapEx = aPNGReader.Read();
return true;
}
void cacheBitmapToDisk(OUString const & sStyle, OUString const & sVariant, OUString const & sName, BitmapEx & rBitmapEx)
{
OUString sUrl(createIconCacheUrl(sStyle, sVariant, sName));
vcl::PNGWriter aWriter(rBitmapEx);
try
{
SvFileStream aStream(sUrl, StreamMode::WRITE);
aWriter.Write(aStream);
aStream.Close();
}
catch (...)
{}
}
bool ImplImageTree::doLoadImage(OUString const & name, OUString const & style, BitmapEx & bitmap, bool localized, const ImageLoadFlags eFlags)
{
setStyle(style);
if (iconCacheLookup(name, localized, eFlags, bitmap))
return true;
if (!bitmap.IsEmpty())
bitmap.SetEmpty();
LanguageTag aLanguageTag = Application::GetSettings().GetUILanguageTag();
std::vector<OUString> paths = getPaths(name, aLanguageTag);
bool found = false;
try {
found = findImage(paths, bitmap, eFlags);
} catch (css::uno::RuntimeException &) {
throw;
} catch (const css::uno::Exception & e) {
SAL_INFO("vcl", "ImplImageTree::doLoadImage exception " << e.Message);
}
if (found)
{
OUString aVariant = createVariant(eFlags);
if (!aVariant.isEmpty())
cacheBitmapToDisk(style, aVariant, name, bitmap);
getCurrentIconSet().maIconCache[name] = std::make_pair(localized, bitmap);
}
return found;
}
void ImplImageTree::shutDown()
{
maCurrentStyle.clear();
maIconSets.clear();
}
void ImplImageTree::setStyle(OUString const & style)
{
assert(!style.isEmpty());
if (style != maCurrentStyle)
{
maCurrentStyle = style;
createStyle();
}
}
void ImplImageTree::createStyle()
{
if (maIconSets.find(maCurrentStyle) != maIconSets.end())
return;
OUString sThemeUrl;
if (maCurrentStyle != "default")
{
INetURLObject aUrl(getIconThemeFolderUrl());
OSL_ASSERT(!aUrl.HasError());
bool ok = aUrl.Append("images_" + maCurrentStyle, INetURLObject::ENCODE_ALL);
OSL_ASSERT(ok); (void) ok;
sThemeUrl = aUrl.GetMainURL(INetURLObject::NO_DECODE) + ".zip";
}
else
sThemeUrl += "images";
if (!urlExists(sThemeUrl))
return;
maIconSets[maCurrentStyle] = IconSet(sThemeUrl);
loadImageLinks();
}
bool ImplImageTree::iconCacheLookup(OUString const & name, bool localized, const ImageLoadFlags eFlags, BitmapEx & bitmap)
{
IconCache& rIconCache = getCurrentIconSet().maIconCache;
IconCache::iterator i(rIconCache.find(getRealImageName(name)));
if (i != rIconCache.end() && i->second.first == localized)
{
bitmap = i->second.second;
return true;
}
OUString aVariant = createVariant(eFlags);
if (!aVariant.isEmpty() && loadDiskCachedVersion(maCurrentStyle, aVariant, name, bitmap))
return true;
return false;
}
bool ImplImageTree::findImage(std::vector<OUString> const & paths, BitmapEx & bitmap, const ImageLoadFlags eFlags)
{
if (!checkPathAccess())
return false;
const css::uno::Reference<css::container::XNameAccess>& rNameAccess = getCurrentIconSet().maNameAccess;
for (const OUString& rPath : paths)
{
if (rNameAccess->hasByName(rPath))
{
css::uno::Reference<css::io::XInputStream> aStream;
bool ok = rNameAccess->getByName(rPath) >>= aStream;
assert(ok);
(void)ok; // prevent unused warning in release build
loadImageFromStream(wrapStream(aStream), rPath, bitmap, eFlags);
return true;
}
}
return false;
}
void ImplImageTree::loadImageLinks()
{
const OUString aLinkFilename("links.txt");
if (!checkPathAccess())
return;
const css::uno::Reference<css::container::XNameAccess> &rNameAccess = getCurrentIconSet().maNameAccess;
if (rNameAccess->hasByName(aLinkFilename))
{
css::uno::Reference< css::io::XInputStream > s;
bool ok = rNameAccess->getByName(aLinkFilename) >>= s;
assert(ok);
(void)ok; // prevent unused warning in release build
parseLinkFile( wrapStream(s) );
return;
}
}
void ImplImageTree::parseLinkFile(std::shared_ptr<SvStream> const & xStream)
{
OString aLine;
OUString aLink, aOriginal;
int nLineNo = 0;
while (xStream->ReadLine(aLine))
{
++nLineNo;
if ( aLine.isEmpty() )
continue;
sal_Int32 nIndex = 0;
aLink = OStringToOUString( aLine.getToken(0, ' ', nIndex), RTL_TEXTENCODING_UTF8 );
aOriginal = OStringToOUString( aLine.getToken(0, ' ', nIndex), RTL_TEXTENCODING_UTF8 );
// skip comments, or incomplete entries
if (aLink.isEmpty() || aLink[0] == '#' || aOriginal.isEmpty())
{
if (aLink.isEmpty() || aOriginal.isEmpty())
SAL_WARN("vcl", "ImplImageTree::parseLinkFile: icon links.txt parse error, incomplete link at line " << nLineNo);
continue;
}
getCurrentIconSet().maLinkHash[aLink] = aOriginal;
OUString aOriginal32 = convertLcTo32Path(aOriginal);
OUString aLink32 = convertLcTo32Path(aLink);
if (!aOriginal32.isEmpty() && !aLink32.isEmpty())
getCurrentIconSet().maLinkHash[aLink32] = aOriginal32;
}
}
OUString const & ImplImageTree::getRealImageName(OUString const & name)
{
IconLinkHash &rLinkHash = maIconSets[maCurrentStyle].maLinkHash;
IconLinkHash::iterator it(rLinkHash.find(name));
if (it == rLinkHash.end())
return name;
return it->second;
}
bool ImplImageTree::checkPathAccess()
{
IconSet& rIconSet = getCurrentIconSet();
css::uno::Reference<css::container::XNameAccess> &rNameAccess = rIconSet.maNameAccess;
if (rNameAccess.is())
return true;
try
{
rNameAccess = css::packages::zip::ZipFileAccess::createWithURL(comphelper::getProcessComponentContext(), rIconSet.maURL);
}
catch (const css::uno::RuntimeException &) {
throw;
}
catch (const css::uno::Exception & e) {
SAL_INFO("vcl", "ImplImageTree::zip file location exception " << e.Message << " for " << rIconSet.maURL);
return false;
}
return rNameAccess.is();
}
css::uno::Reference<css::container::XNameAccess> ImplImageTree::getNameAccess()
{
checkPathAccess();
return getCurrentIconSet().maNameAccess;
}
/// Recursively dump all names ...
css::uno::Sequence<OUString> ImageTree_getAllImageNames()
{
css::uno::Reference<css::container::XNameAccess> xRef(ImplImageTree::get().getNameAccess());
return xRef->getElementNames();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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