# GTK 4 Tutorial for beginners

The GitHub page of this tutorial is also available. Click [here](https://toshiocp.github.io/Gtk4-tutorial/).

#### Contents of this Repository

This tutorial illustrates how to write C programs with the GTK 4 library.
It focuses on beginners so the contents are limited to the basics.
The table of contents is at the end of this abstract.

- Section 3 to 23 describes the basics, with the example of a simple editor `tfe` (Text File Editor).
- Section 24 to 27 describes GtkDrawingArea.
- Section 28 to 32 describes the list model and the list view (GtkListView, GtkGridView and GtkColumnView).
It also describes GtkExpression.

The latest version of the tutorial is located at [GTK4-tutorial GitHub repository](https://github.com/ToshioCP/Gtk4-tutorial).
You can read it directly without download.

There's a [GitHub Page](https://toshiocp.github.io/Gtk4-tutorial/) which is the HTML version of the tutorial.

#### GTK 4 Documentation

Please refer to [GTK 4 API Reference](https://docs.gtk.org/gtk4/index.html)
and [GNOME Developer Documentation Website](https://developer.gnome.org/) for further information.

These websites were opened in August of 2021.
The old documents are located at [GTK Reference Manual](https://developer-old.gnome.org/gtk4/stable/) and [GNOME Developer Center](https://developer-old.gnome.org/).

If you want to know about GObject and the type system, please refer to [GObject tutorial](https://github.com/ToshioCP/Gobject-tutorial).
GObject is the base of GTK 4, so it is important for developers to understand it as well as GTK 4.

#### Contribution

This tutorial is still under development and unstable.
Even though the codes of the examples have been tested on GTK 4 (version 4.10.1), bugs may still exist.
If you find any bugs, errors or mistakes in the tutorial and C examples, please let me know.
You can post it to [GitHub issues](https://github.com/ToshioCP/Gtk4-tutorial/issues).
You can also post updated files to [pull request](https://github.com/ToshioCP/Gtk4-tutorial/pulls).
One thing you need to be careful is to correct the source files, which are under the 'src' directory.
Don't modify the files under `gfm` or `html` directories.
After modifying some source files , run `rake` to create GFM (GitHub Flavoured Markdown) files and run `rake html` to create HTML files.

If you have a question, feel free to post it to `issue`.
All questions are helpful and will make this tutorial get better.

#### How to get Gtk 4 tutorial with HTML or PDF format

If you want to get HTML or PDF format tutorial, make them with `rake` command, which is a ruby version of make.
Type `rake html` for HTML.
Type `rake pdf` for PDF.
There is a document \("[How to build GTK 4 Tutorial](gfm/Readme_for_developers.md)"\) for further information.

#### License

The license of this repository is written in [Section1](gfm/sec1.md).
In short,

- GFDL1.3 for documents
- GPL3 for programs

## Table of contents

1. [Prerequisite and License](gfm/sec1.md)
1. [Preparation (GTK 4 installation and the download of this repository)](gfm/sec2.md)
1. [GtkApplication and GtkApplicationWindow](gfm/sec3.md)
1. [Widgets (1)](gfm/sec4.md)
1. [Widgets (2)](gfm/sec5.md)
1. [Strings and memory management](gfm/sec6.md)
1. [Widgets (3)](gfm/sec7.md)
1. [Defining a final class](gfm/sec8.md)
1. [GtkBuilder and UI file](gfm/sec9.md)
1. [Build system](gfm/sec10.md)
1. [Instance Initialization and destruction](gfm/sec11.md)
1. [Signals](gfm/sec12.md)
1. [TfeTextView class](gfm/sec13.md)
1. [Functions in GtkNotebook](gfm/sec14.md)
1. [Tfe main program](gfm/sec15.md)
1. [How to build tfe (text file editor)](gfm/sec16.md)
1. [Menus and actions](gfm/sec17.md)
1. [Stateful action](gfm/sec18.md)
1. [Ui file for menu and action entries](gfm/sec19.md)
1. [Composite widgets and alert dialog](gfm/sec20.md)
1. [GtkFontDialogButton and Gsettings](gfm/sec21.md)
1. [TfeWindow](gfm/sec22.md)
1. [Pango, CSS and Application](gfm/sec23.md)
1. [GtkDrawingArea and Cairo](gfm/sec24.md)
1. [Periodic Events](gfm/sec25.md)
1. [Combine GtkDrawingArea and TfeTextView](gfm/sec26.md)
1. [Tiny turtle graphics interpreter](gfm/sec27.md)
1. [GtkListView](gfm/sec28.md)
1. [GtkGridView and activate signal](gfm/sec29.md)
1. [GtkExpression](gfm/sec30.md)
1. [GtkColumnView](gfm/sec31.md)
1. [GtkSignalListItemFactory](gfm/sec32.md)