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unit VisitSetXY;
{ A visitor to set the X and Y coordinates of each token
based on keeping a running count of the text length and number of newlines }
{(*}
(*------------------------------------------------------------------------------
Delphi Code formatter source code
The Original Code is VisitSetXY, released May 2003.
The Initial Developer of the Original Code is Anthony Steele.
Portions created by Anthony Steele are Copyright (C) 1999-2008 Anthony Steele.
All Rights Reserved.
Contributor(s): Anthony Steele.
The contents of this file are subject to the Mozilla Public License Version 1.1
(the "License"). you may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.mozilla.org/NPL/
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied.
See the License for the specific language governing rights and limitations
under the License.
Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 2 or later (the "GPL")
See http://www.gnu.org/licenses/gpl.html
------------------------------------------------------------------------------*)
{*)}
{$I JcfGlobal.inc}
interface
uses BaseVisitor;
type
TVisitSetXY = class(TBaseTreeNodeVisitor)
private
// running totals of x and Y pos, and count of solid tokens on the line
fiX, fiY, fiSolidTokenOnLineIndex: integer;
fsFileName: string;
public
constructor Create; override;
function VisitSourceToken(const pcToken: TObject): Boolean; override;
end;
implementation
uses
{ local }
JcfStringUtils,
JcfMiscFunctions, SourceToken, Tokens;
constructor TVisitSetXY.Create;
begin
inherited;
// text coords start at 1,1
fiX := 1;
fiY := 1;
fiSolidTokenOnLineIndex := 0;
fsFileName := '';
end;
function TVisitSetXY.VisitSourceToken(const pcToken: TObject): boolean;
var
lcToken: TSourceToken;
begin
Result := False;
lcToken := TSourceToken(pcToken);
// track the file name
if (fsFileName = '') and (lcToken.FileName <> '') then
begin
fsFileName := lcToken.FileName;
end;
// apply file name to all tokens that don't have it
if lcToken.FileName = '' then
begin
lcToken.FileName := fsFileName;
end;
// track position
lcToken.XPosition := fiX;
lcToken.YPosition := fiY;
lcToken.SolidTokenOnLineIndex := fiSolidTokenOnLineIndex;
if lcToken.TokenType = ttReturn then
fiSolidTokenOnLineIndex := 0
else if (lcToken.TokenType = ttComment) and
(Pos(NativeLineBreak, string(lcToken.SourceCode)) > 0) then
fiSolidTokenOnLineIndex := 0
else if lcToken.IsSolid then
Inc(fiSolidTokenOnLineIndex);
// keep count
AdvanceTextPos(lcToken.SourceCode, fiX, fiY);
end;
end.
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