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/*
==============================================================================
This file is part of the JUCE framework.
Copyright (c) Raw Material Software Limited
JUCE is an open source framework subject to commercial or open source
licensing.
By downloading, installing, or using the JUCE framework, or combining the
JUCE framework with any other source code, object code, content or any other
copyrightable work, you agree to the terms of the JUCE End User Licence
Agreement, and all incorporated terms including the JUCE Privacy Policy and
the JUCE Website Terms of Service, as applicable, which will bind you. If you
do not agree to the terms of these agreements, we will not license the JUCE
framework to you, and you must discontinue the installation or download
process and cease use of the JUCE framework.
JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
JUCE Privacy Policy: https://juce.com/juce-privacy-policy
JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
Or:
You may also use this code under the terms of the AGPLv3:
https://www.gnu.org/licenses/agpl-3.0.en.html
THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
==============================================================================
*/
namespace juce
{
extern Image JUCE_API getIconFromApplication (const String&, int);
static Image getIconFromIcnsFile (const File& icnsFile, const int size)
{
FileInputStream stream (icnsFile);
if (! stream.openedOk())
return {};
const int numHeaderSectionBytes = 4;
char headerSection [numHeaderSectionBytes];
if (stream.read (headerSection, numHeaderSectionBytes) != numHeaderSectionBytes
|| headerSection[0] != 'i'
|| headerSection[1] != 'c'
|| headerSection[2] != 'n'
|| headerSection[3] != 's')
return {};
if (stream.read (headerSection, numHeaderSectionBytes) != numHeaderSectionBytes)
return {};
const auto dataSize = juce::ByteOrder::bigEndianInt (headerSection);
if (dataSize <= 0)
return {};
OwnedArray<juce::ImageFileFormat> internalFormats;
internalFormats.add (new PNGImageFormat());
internalFormats.add (new JPEGImageFormat());
Array<Image> images;
auto maxWidth = 0;
auto maxWidthIndex = -1;
while (stream.getPosition() < dataSize)
{
const auto sectionStart = stream.getPosition();
if (! stream.setPosition (sectionStart + 4))
break;
if (stream.read (headerSection, numHeaderSectionBytes) != numHeaderSectionBytes)
break;
const auto sectionSize = ByteOrder::bigEndianInt (headerSection);
if (sectionSize <= 0)
break;
const auto sectionDataStart = stream.getPosition();
for (auto* fmt : internalFormats)
{
if (fmt->canUnderstand (stream))
{
stream.setPosition (sectionDataStart);
images.add (fmt->decodeImage (stream));
const auto lastImageIndex = images.size() - 1;
const auto lastWidth = images.getReference (lastImageIndex).getWidth();
if (lastWidth > maxWidth)
{
maxWidthIndex = lastImageIndex;
maxWidth = lastWidth;
}
}
stream.setPosition (sectionDataStart);
}
stream.setPosition (sectionStart + sectionSize);
}
return maxWidthIndex == -1 ? juce::Image()
: images.getReference (maxWidthIndex).rescaled (size, size, Graphics::ResamplingQuality::highResamplingQuality);
}
Image JUCE_API getIconFromApplication (const String& applicationPath, const int size)
{
if (auto pathCFString = CFUniquePtr<CFStringRef> (CFStringCreateWithCString (kCFAllocatorDefault, applicationPath.toRawUTF8(), kCFStringEncodingUTF8)))
{
if (auto url = CFUniquePtr<CFURLRef> (CFURLCreateWithFileSystemPath (kCFAllocatorDefault, pathCFString.get(), kCFURLPOSIXPathStyle, 1)))
{
if (auto appBundle = CFUniquePtr<CFBundleRef> (CFBundleCreate (kCFAllocatorDefault, url.get())))
{
if (CFTypeRef infoValue = CFBundleGetValueForInfoDictionaryKey (appBundle.get(), CFSTR ("CFBundleIconFile")))
{
if (CFGetTypeID (infoValue) == CFStringGetTypeID())
{
CFStringRef iconFilename = reinterpret_cast<CFStringRef> (infoValue);
CFStringRef resourceURLSuffix = CFStringHasSuffix (iconFilename, CFSTR (".icns")) ? nullptr : CFSTR ("icns");
if (auto iconURL = CFUniquePtr<CFURLRef> (CFBundleCopyResourceURL (appBundle.get(), iconFilename, resourceURLSuffix, nullptr)))
{
if (auto iconPath = CFUniquePtr<CFStringRef> (CFURLCopyFileSystemPath (iconURL.get(), kCFURLPOSIXPathStyle)))
{
File icnsFile (CFStringGetCStringPtr (iconPath.get(), CFStringGetSystemEncoding()));
return getIconFromIcnsFile (icnsFile, size);
}
}
}
}
}
}
}
return {};
}
} // namespace juce
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