My Lua extension script has a function that centers the cursor in the
middle of the screen, using code suggested by Neil. This works fine
when called from the tool menu. FYI I called this 'CenterCursor'
Additionally I have a function that hooks OnOpen, to locate a key word.
When this word is found, the position the cursor was at when the file
was saved is retrieved and repositioned. This too works fine.
However, recently I added a call to 'CenterCursor' after the cursor has
been position by the OnOpen hook. This is not working. This error is
reported:
> ...\SciTEExtension.lua:510: bad argument #1 to
`VisibleFromDocLine' (number expected, got string)
The function is:
function CenterCursor()
local line = props.SelectionStartLine;
local topLineWanted = editor:VisibleFromDocLine(line) -
editor.LinesOnScreen / 2; -- line 510
editor:LineScroll(0, topLineWanted - editor.FirstVisibleLine)
end
FYI, if you like the script, you may find this revision useful for a
second one called TopCursor(). Change the second line to:
local topLineWanted = editor:VisibleFromDocLine(line) - 2;
April
--
A fool must now and then be right by chance.
Cowper
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