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Developing with GTK

The Windows and Generic ports of RetroForth provide support for using external libraries. One of the first significant uses of this functionality was to provide bindings for GTK+.

The primary focus of our bindings at this time is to allow creation of form-based applications quickly and easily. The primary bindings are complete, but much work on them remains to be done.

For you enjoyment, a few screenshots:

• Block editor using GTK
• A simple text editor using GTK

init
Initialize the GTK+ environment

To create a window:
window: name
To set the title:
name " title" setTitle

To create a button:
" initial label" button: name-of-button
To obtain the label of a button:
name-of-button button.getText
To set the label of a button:
name-of-button " new label" button.setText

To create a label:
" initial text" label: label-name
To change the text of a label:
label-name " text" label.setText

hbox-fixed:
vbox-fixed:
hbox:
vbox:
hButtonBox:
vButtonBox:
scrolled:

Single Line Text Entry

To create a text entry field:
entry: name
To change the text of a field:
name " text" entry.setText
To get the text in a field:
name entry.getText
To set the width of the field:
name #chars entry.setWidth
To set the maximum length of a field:
name #chars entry.setMaxLength
For a multi-line entry box, use textbox instead of entry