Martin wrote:
On 16/05/2012 09:13, Mark Morgan Lloyd wrote:
Does anybody have any suggestions for a component to display status or
terminal text that will allow limited enhancement (colour, possibly
underline etc.)?
Over the last few weeks I've been tinkering with an emulator for an
obsolete mechanical terminal (IBM 2741), including support for the APL
character set. I started off using a listbox for simple output, noting
that this didn't have provision for multiple colours or marking the
insertion point. I moved on to stuffing characters into a memo, this
allowed me to force a current-position marker but still had no colour.
Looking at the CmdLine component, it appears OK as a command window
(i.e. accepting keyboard input etc.) but isn't so hot when the
principal requirement is to display text pushed into the underlying
strings storage from elsewhere: in particular, there isn't a way to
force the insertion point marker to the end of what's just been output.
I'm sure I'm not the only person who wants to do this sort of thing:
does anybody have any recommendations?
TSynEdit? TSynPosSyn (position highlighter, see examples)
Do you mean that that can now colour arbitrary sequences of characters
(i.e. what you'd expect from a terminal emulator), rather than having to
define things in advance? As an example, see
http://wotho.ethz.ch/APL-1130/2741_APL_Demo.png where everything the
user enters (which starts at the 7th column) is printed in red.
Being able to use a standard component would definitely be an advantage,
since particularly for this project I am very keen on a user with
limited (or no) Pascal experience simply being able to grab the sources
and a copy of Lazarus and compile.
But I must also ask: how long has TSynedit done this? It does appear to
be one of the more fluid parts of the LCL and I'm afraid I'm a bit wary...
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
--
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