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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2022 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
Agreement and JUCE Privacy Policy.
End User License Agreement: www.juce.com/juce-7-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR 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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