Reference Manual

G-Golf reference manual is available in the following formats:

Examples

G-Golf is distributed with a series of small examples, located in the /examples subdir of your G-Golf source tree. Each example comes as a 'self executable' script, together with a screenshot.

As Savannah uses cgit as its projects summary and source repositories browser, one can not (remotely) visualize rendered version of image files - cgit displays those files as plain text (ofs, hex dump and ascii columns), and so we have uploaded a copy of each example screenshot here.

Gtk-4 Examples

Special thanks to the GNOME team, both Gtk-4 and GI developers, and their gtk-4-examples, from which these G-Golf examples are largely inspired.

Hello World!

Following the tradition, let's start with the often seen, familiar, minimal and friendly greeting program ‘Hello World!’.

hello-world.scm

Search bar

The search bar example shows how to define and use a header bar, a search button and a search entry. It also demonstrates how to use the css-classes property, and finally, how to bind object properties.

search-bar.scm

Clipboard

The clipboard example shows how to define and use a (gdk) clipboard, content-providers, textures, as well as (gtk) entries and images.

clipboard.scm

Revealer

The revealer example shows how to define and use a ui (user interface) builder, revealers, as well as how to 'animate' them, setting a procedure to be called at regular intervals using g-timeout-add.

revealer.scm

Css Basics

The css-basics example shows how to define and use a <gtk-css-provider>, how to add the <gtk-css-provider> instance to a widget and finally, how to recursively apply it to all widget's child(ren).

css-basics.scm

Peg Solitaire

The peg-solitaire example demonstrates how to use drag-and-drop, to define a derived GObject subclass that implements a GInterface, and shows how to define the interface virtual functions that this game requires. Finally, it exposes how to load and play a sound, an introduction to the MediaStream and MediaFile Gtk coponents.

peg-solitaire.scm

Drawing Widget

The drawing widget example demonstrates how implement a widget that does some custom drawing. It is based on the introduction given on the Gtk Development Blog, this blog entry: Custom widgets in GTK 4 – Drawing.

drawing-widget.scm

Simple Paintable

The simple paintable example demonstrates the use of a GtkPaintable and cairo to draw a nuclear icon as part of a GtkImage. It is based on the C example of the same name, part of the gtk4-demo.

Note that this example needs a patched version of Guile-Cairo, which contains the following new interface (which is not in guile-cairo 1.11.2): cairo-pointer->context.

simple-paintable.scm

Animated Paintable

The animated paintable example demonstrates the use of a GtkPaintable that changes over time. It reuses the <nuclear-icon> class and the nuclear-snapshot procedure defined in the simple paintable example.

Note that this example needs a patched version of Guile-Cairo, which contains the following new interface (which is not in guile-cairo 1.11.2): cairo-pointer->context.

animated-paintable.scm

Adw-1 Examples

Special thanks to the GNOME team, the Adw-1, Gtk-4 and GI developers for their examples and the adwaita-1-demo, from which these G-Golf examples are largely inspired.

Hello World!

Following the tradition, let's start with the often seen, familiar, minimal and friendly greeting program ‘Hello World!’, but this time, using Adwaita 1.

hello-world.scm

Adw1-demo

Here is a screenshot of the adw1-demo main page:

adw1-demo.scm

Here is a screenshot of the adw1-demo navigation view page, but we reduced the adw1-demo window size to trigger its adaptive mode:

adw1-demo.scm