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SynEdit/Cocoa: optimize text bound calc in IME/LookupWord

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This commit is contained in:
rich2014 2024-08-28 21:54:01 +08:00
parent ce17c7fa76
commit c9d144c313
1 changed files with 11 additions and 5 deletions
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16
components/synedit/lazsyncocoaimm.pas
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@ -186,7 +186,9 @@ begin
if params.row > 0 then
params.row:= params.row - 1;
lineText:= FriendEdit.Lines[params.row];
if logicalPoint.x <= lineText.length then begin
if (lineText.length>0) and (logicalPoint.x<=lineText.length+1) then begin
if logicalPoint.x > lineText.length then
logicalPoint.x:= lineText.length;
params.col:= UTF8Length( pchar(lineText), logicalPoint.x ) - 1;
end else begin
params.col:= -1;
@ -209,9 +211,11 @@ var
begin
lineText:= FriendEdit.Lines[params.row];
col1Bytes:= UTF8CodepointToByteIndex( pchar(lineText), lineText.Length, params.col );
col2Bytes:= UTF8CodepointToByteIndex( pchar(lineText), lineText.Length, params.col + params.length );
col1Bytes:= UTF8CodepointToByteIndex( pchar(lineText),
lineText.Length, params.col );
col2Bytes:= col1Bytes + UTF8CodepointToByteIndex( pchar(lineText)+col1Bytes,
lineText.Length-col1Bytes, params.length );
// two vertexs in bytes
p1:= Point( col1Bytes + 1, params.row + 1 );
p2:= Point( col2Bytes + 1, params.row + 1 );
@ -274,8 +278,10 @@ begin
// two vertexs in bytes
p1:= _IntermediateTextBeginPos;
p2:= p1;
p1.X:= p1.X + UTF8CodepointToByteIndex( pchar(@params.text[1]), params.textByteLength, params.selectedStart );
p2.X:= p2.X + UTF8CodepointToByteIndex( pchar(@params.text[1]), params.textByteLength, params.selectedStart+params.selectedLength );
p1.X:= p1.X + UTF8CodepointToByteIndex( pchar(@params.text[1]),
params.textByteLength, params.selectedStart );
p2.X:= p1.X + UTF8CodepointToByteIndex( pchar(@params.text[1])+p1.X,
params.textByteLength-p1.X, params.selectedLength );
// two vertexs in pixels
p1:= PosToPixels( p1 );