pdeedit.pas

pde专用vcl

unit PDEEdit;

interface

uses
  SysUtils, Classes, Controls, StdCtrls, Windows, Messages;

type
  TPDEEdit = class(TEdit)
  private
    { Private declarations }
  protected
    { Protected declarations }
    procedure Change; override;
  public
    { Public declarations }
  published
    { Published declarations }
  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents('PDE', [TPDEEdit]);
end;

procedure TPDEEdit.Change;
var
  iSel, i: integer;
begin
  inherited;
  if Pos('''', Self.Text) > 0 then
  begin
    iSel := Self.GetSelStart;
    i := Length(Self.Text);
    while Pos('''', Self.Text) > 0 do
      Self.Text := copy(Self.Text, 1, Pos('''', Self.Text) - 1) + copy(Self.Text, pos('''', Self.Text) + 1, Length(Self.Text));
    i := i - Length(Self.Text);
    iSel := iSel - i;
    Self.SetSelStart(iSel);
  end;
end;

end.