On Wed, Sep 3, 2008 at 5:49 AM, John Labenski <[EMAIL PROTECTED]> wrote:
> On Tue, Sep 2, 2008 at 11:12 PM, Duncan Cross <[EMAIL PROTECTED]> wrote:
>> Hi List,
>>
>> Could anyone help me with getting brace matching to work (i.e. when
>> the text cursor is over a brace, highlight both the brace and its
>> matching twin blue, unless the brace is mismatched, in which case
>> highlight it red) for a wxStyledTextCtrl control? It seems like it
>> should be obvious, but I can't seem to find this information anywhere.
>> What change(s) would you make to the editor.wx.lua sample script to do
>> this? (I know that it must be possible since wxLuaEditor supports it.)
>>
>
> The wxLuaEditor does it on the C++ side, but perhaps it can be
> translated to Lua.
>
> See:
>
> http://wxcode.cvs.sourceforge.net/wxcode/wxCode/components/wxstedit/src/stedit.cpp?view=markup
>
> 156 EVT_STC_UPDATEUI (wxID_ANY, wxSTEditor::OnSTCUpdateUI)
>
> 340 void wxSTEditor::OnSTCUpdateUI(wxStyledTextEvent &event)
>
> 1874 void wxSTEditor::DoBraceMatch()
>
> and
>
> 1792 bool wxSTEditor::DoFindMatchingBracePosition(
>
>
> Hope this helps,
> John
I have managed to get it working, by adding this function:
function DoFindMatchingBracePosition(editor)
local length = editor.Length;
if (length == 0) then
return -1,-1
end
local pos = editor.CurrentPos;
if (pos > 0) and (editor:PositionBefore(pos)==(pos-1)) then
local prevc = editor:GetCharAt(pos-1);
if (prevc == 91) or (prevc == 93) or (prevc == 123)
or (prevc == 125) or (prevc == 40) or (prevc == 41) then
return pos-1, editor:BraceMatch(pos-1);
end
end
if (pos < length) and (editor:PositionAfter(pos)==(pos+1)) then
local nextc = editor:GetCharAt(pos);
if (nextc == 91) or (nextc == 93) or (nextc == 123)
or (nextc == 125) or (nextc == 40) or (nextc == 41) then
return pos, editor:BraceMatch(pos);
end
end
return -1,-1
end
...and modifying the UPDATE_UI event handler to this:
editor:Connect(wxstc.wxEVT_STC_UPDATEUI,
function (event)
UpdateStatusText(editor)
local braceAtCaret,braceOpposite =
DoFindMatchingBracePosition(editor)
if (braceAtCaret > -1) and (braceOpposite == -1) then
editor:BraceBadLight(braceAtCaret)
editor:SetHighlightGuide(0)
else
editor:BraceHighlight(braceAtCaret, braceOpposite)
end
end)
Thanks again for your help.
-Duncan
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