html.gadget and htmlttf.gadget are public ReAction (BOOPSI) gadget classes
for AmigaOS 3.2 that display simple HTML 4 documents - online help, readme
files, "about" pages, simple offline browsers.
Features
--------
- headings, paragraphs, <pre>, <blockquote>, alignment, horizontal rules
- text styles, <font size color face>, sub/superscript
- lists (ul/ol with all numbering types, nested; dl)
- tables with automatic column widths, colspan, rowspan, border,
cellpadding, cellspacing, width in pixels or %, align/valign, bgcolor,
captions, nested tables
- links with visited/active colours, anchors, "#anchor" links handled
by the gadget itself, link clicks reported as GADGETUP
- pictures in every format a datatype exists for (GIF transparency, PNG
alpha in htmlttf.gadget), scaled with width/height; with align=left/
right the text flows around them (hspace, vspace, br clear)
- background colours and tiled background pictures for the page, tables
and cells
- text selection with the mouse (drag, double click for a word) and
copying to the clipboard (IFF FTXT)
- Latin-1 entities, UTF-8 documents are converted automatically
- scrollers connect via ICA_TARGET/ICA_MAP, mouse wheel and keys in the
demo program
html.gadget uses the system's bitmap fonts and rounds bigger HTML font
sizes to sizes that really exist (e.g. Helvetica 9/11/13/15/18/24), so no
scaled bitmap fonts are shown. Rendering is flicker free through an
off-screen bitmap. Runs on every AmigaOS 3.2 system, 68000 and up.
htmlttf.gadget is a drop-in alternative with the same attributes that
renders anti-aliased TrueType fonts through a built-in FreeType 2.3.8
(Bitstream Vera included; DejaVu and Noto are supported as well),
composites everything in 32 bit (pictures with alpha channel) and
writes it with WritePixelArray() on RTG screens
or maps it to pens on palette screens.
Contents
--------
Install Installer script (English/German)
Classes/Gadgets/ html.gadget, htmlttf.gadget (68000)
Classes/Gadgets/68020/
htmlttf.gadget for 68020-68060 (Install picks it)
Demo/ HTMLDemo (a small browser) with example pages;
"HTMLDemo TTF" uses htmlttf.gadget
Developer/ includes (gadgets, proto, inline, clib), FD, SFD,
Autodocs
Docs/ German documentation (LiesMich.txt)
Icons/ the archive's icons as GlowIcons and NewIcons (and
the classic ones); double click UseGlowIcons,
UseNewIcons or UseClassic to switch
Source/ complete source code (C, cross compiled with
bebbo's amiga-gcc and NDK 3.2; FreeType 2.3.8 from
Aminet dev/lib/freetype-2.3.8 is needed for
htmlttf.gadget)
The demo runs directly from the archive; to use the classes in your own
programs, run the Installer script or copy Classes/Gadgets/#? to
SYS:Classes/Gadgets/.
Not supported: CSS, JavaScript, frames, forms (drawn as boxes only),
text flowing around tables, network access.
History
-------
1.1 (03.10.2026)
- tables: cells spanning several rows (rowspan)
- pictures with align=left/right, text flows around them
- html.gadget: links are underlined with every font and without gaps
between the words
- list bullets are centred vertically in the line
- htmlttf.gadget also as faster build for 68020-68060
- icons also as GlowIcons and NewIcons (drawer Icons)
- new demo pages: tables, text flow
- HTMLDemo: no crash when started from the Workbench
- checkboxes and radio buttons show their state, sized to the font
(anti-aliased in htmlttf.gadget), e.g. for Markdown task lists
- lists: type="none" on the list or an item hides the marker; a
checkbox at the start of the item takes its place (task lists)
1.0 (30.09.2026)
- first release
License
-------
MIT License, see LICENSE.
htmlttf.gadget contains FreeType: Portions of this software are copyright
(c) 2009 The FreeType Project (www.freetype.org). All rights reserved.
Bitstream Vera fonts: Copyright (c) 2003 by Bitstream, Inc., see
Licenses/Vera-COPYRIGHT.TXT.
Deutsch
-------
html.gadget und htmlttf.gadget sind öffentliche ReAction-Klassen für
AmigaOS 3.2, die einfache HTML-4-Dokumente anzeigen: Überschriften,
Listen, Tabellen, Links, Bilder über Datatypes, Text markieren und in
die Zwischenablage kopieren. html.gadget verwendet die Bitmap-Fonts des
Systems in ihren echten Größen, htmlttf.gadget geglättete
TrueType-Schriften über FreeType. Ausführliche deutsche Dokumentation:
Docs/LiesMich.txt. Installation mit dem beiliegenden Installer-Skript.
Versionsgeschichte
------------------
1.1 (03.10.2026)
- Tabellen: Zellen über mehrere Zeilen (rowspan)
- Bilder mit align=left/right, der Text umfließt sie
- html.gadget: Links werden mit jedem Font und ohne Lücken zwischen den
Wörtern unterstrichen
- Aufzählungspunkte stehen vertikal mittig in der Zeile
- htmlttf.gadget zusätzlich als schnellerer Build für 68020-68060
- Icons zusätzlich als GlowIcons und NewIcons (Schublade Icons)
- neue Demo-Seiten: Tabellen, Textumfluss
- HTMLDemo: kein Absturz mehr beim Start von der Workbench
- Checkboxen und Radio-Buttons zeigen ihren Zustand, passend zur
Schriftgröße (in htmlttf.gadget geglättet), z. B. für
Markdown-Aufgabenlisten
- Listen: type="none" an der Liste oder einem Punkt blendet das Zeichen
aus; eine Checkbox am Anfang des Punkts tritt an seine Stelle
(Aufgabenlisten)
1.0 (30.09.2026)
- erste Veröffentlichung
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