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92 lines
5.1 KiB
Markdown
92 lines
5.1 KiB
Markdown
# Using Qt Creator for working with SerenityOS
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## Setup
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First, make sure you have a working toolchain and can build and run SerenityOS. Go [here](BuildInstructions.md) for instructions for setting that up.
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* Install [Qt Creator](https://www.qt.io/offline-installers). You don't need the entire Qt setup, just click 'Qt Creator' on the left side, and install that.
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* Open Qt Creator, select `File -> New File or Project...`
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* Select `Import Existing Project`
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* Give it a name (some tools assume lower-case `serenity`), and navigate to the root of your SerenityOS project checkout. Click Next.
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* Wait for the file list to generate. This can take a minute or two!
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* Ignore the file list, we will overwrite it later. Click Next.
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* Set `Add to version control` to `<None>`. Click Finish.
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* In your shell, go to your SerenityOS project directory, and invoke the `Meta/refresh-serenity-qtcreator.sh` script to regenerate the `serenity.files` file. You will also have to do this every time you delete or add a new file to the project.
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* Edit the `serenity.config` file (In Qt Creator, hit ^K or CMD+K on a Mac to open the search dialog, type the name of the file and hit return to open it)
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* Add the following `#define`s to the file: `SANITIZE_PTRS`, and `KERNEL`. Depending on what you are working on, you need to have that last define commented out. If you're planning on working in the userland, comment out `#define KERNEL`. If you're working on the Kernel, then uncomment `#define KERNEL`.
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* Edit the `serenity.cxxflags` file to say `-std=c++2a -m32`
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* Edit the `serenity.includes` file, add the following lines:
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```
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.
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..
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../..
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Userland/Services/
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Userland/Libraries/
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Userland/Libraries/LibC/
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Userland/Libraries/LibM/
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Userland/Libraries/LibPthread/
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Userland/Libraries/LibSystem/
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Toolchain/Local/i686/i686-pc-serenity/include/c++/10.2.0
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Build/
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Build/Userland/
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Build/Userland/Services/
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Build/Userland/Libraries/
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AK/
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```
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Finally, search in the options for "BOM" (Text Editor > Behavior > File Encodings > UTF-8 BOM), and switch to "Always delete".
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Qt Creator should be set up correctly now, go ahead and explore the project and try making changes. Have fun! :^)
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## Auto-Formatting
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You can use `clang-format` to help you with the [style guide](CodingStyle.md). Before you proceed, check that you're actually using clang-format version 11, as some OSes still ship clang-format version 9 or 10 by default.
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- In QtCreator, go to "Help > About Plugins…"
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- Find the `Beautifier (experimental)` row (for example, by typing `beau` into the search)
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- Put a checkmark into the box
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- Restart QtCreator if it asks you
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- In QtCreator, go to "Tools > Options…"
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- Type "beau" in the search box, go to "Beautifier > Clang Format"
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- Select the "customized" style, click "edit"
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- Paste the entire content of the file `.clang-format` into the "value" box, and click "OK"
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- In the "Beautifier > General" tab, check "Enable auto format on file save"
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- Select the tool "ClangFormat" if not already selected, and click "OK"
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Note that not the entire project is clang-format-clean (yet), so sometimes you will see large diffs.
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Use your own judgement whether you want to include such changes. Generally speaking, if it's a few lines then it's a good idea; if it's the entire file then maybe there's a better way to do it, like doing a separate commit, or just ignoring the clang-format changes.
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You may want to read up what `git add -p` does (or `git checkout -p`, to undo).
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QtCreator tends to interpret IPC definitions as C++ headers, and then tries to format them. This is not useful. One way to avoid that is telling QtCreator that IPC definitions are not C++ headers.
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- In QtCreator, go to "Tools > Options…"
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- Type "beau" in the search box, go to "Environment > MIME Types"
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- In the little search box, type "plain", and select "text/plain"
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- In the "details" section, you should now see the list of Patterns, something like `*.txt;*.asc;*,v`. Extend it in the following way: `*.txt;*.asc;*,v;*.ipc;*.gml`
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- Click "OK" to close the dialog.
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- Maybe you need to close and open again the IPC files. You can check what QtCreator is doing by right-clicking the filename in the editor tab, and clicking "Properties...". In the third line, you should see `MIME type: text/plain`.
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## License template
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You may have noticed how Andreas just types `lic` and the [license appears](https://youtu.be/i0J6J1Twwyo?t=346).
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In order to so, create a new file anywhere, for example `license-template.creator`, with the standard license:
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```
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/*
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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```
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In QtCreator, select the menu "Tools", item "Options", section "C++", tab
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"File Naming" (don't ask me why it's here). At the bottom there should be the
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option "License template:". Click "Browse…", select your file (i.e.,
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`license-template.creator`). Click "OK", and you're done! :)
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## Compiler Kits
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You can slightly improve how well Qt interprets the code by adding and setting up an appropriate "compiler kit".
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For that you will need to reference the compilers at `Toolchain/Local/i686/bin/i686-pc-serenity-gcc` and `Toolchain/Local/i686/bin/i686-pc-serenity-g++`.
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