Krita Shell Extension

Shell Extension to provide various information about Krita files in Windows Explorer.

You can download Krita at https://krita.org/

License

The MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Acknowledgement

This software uses the following libraries:

libzip - BSD-like license - http://www.nih.at/libzip/
zlib - zlib license - http://www.zlib.net/
TinyXML-2 - zlib license https://github.com/leethomason/tinyxml2

For the license information on these libraries, you can either refer to the above URLs, or refer to the corresponding COPYING files included in the source tree and/or binary release package.

System Requirements

This shell extension requires Windows Vista or above. It does not work on Windows XP and previous versions of Windows.

The released installer checks for Windows 7 or above, so it can not be used directly on Windows Vista.

The binaries were compiled using Visual Studio 2015. They are linked statically against the C++ runtime, so no extra runtime libraries are needed for this to work.

Installing

Executing the installer should work without any trouble.

Installing the shell extensions by regsvr32 is not supported.

Using

Once this library is registered on the system, it will automatically work inside Windows Explorer and other shell components (e.g. File Dialogs) without needing further actions.

Building From Source

The project has been compiled and tested with CMake 3.4.3 using both NMake Makefile and Visual Studio 2015.

External libraries should be automatically downloaded and compiled by the build system. You can also choose to download their sources manually by replacing deps/CMakeLists.txt with deps/CMakeLists_uselocal.txt. Note that you may need to change the CMakeLists.txt of libzip manually to add the static library target.

You have to build the 32-bit and 64-bit versions separately. Using an out-of-source build location is recommended.

Example build commands:

Visual Studio 2015 64-bit build:

  cmake -G "Visual Studio 14 2015 Win64" <path_to_source>
  cmake --build . --config Release

NMake (within Visual Studio command prompt):

  cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release <path_to_source>
  cmake --build .

Currently, the project does not include an install target. You will have to copy the output manually or using an external script. The output DLL is located at

<build_dir>\KritaShellExtension\<config>\kritashellex##.dll

<build_dir>\KritaShellExtension\kritashellex##.dll

depending on the generator you use, where ## is the target architecture.

To build the NSIS installer, refer to the readme file under installer/nsis.

Additional Information

KritaThumbnailProvider

Provides preview thumbnail for .kra and .ora files.

KritaPropertyHandler

Provides image file properties for .kra and .ora files. Additional registry changes are needed for it to work the best.

zip_source_IStream

Utility allowing libzip to read zip archives directly from the COM interface IStream without needing to load the content of the entire stream into memory beforehand, saving some time and reducing memory usage.

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