unit fFindHex;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, CorelButton;

type
  TfrmFindHex = class(TForm)
    lblFind: TLabel;
    gpOptions: TGroupBox;
    chkCase: TCheckBox;
    chkCaret: TCheckBox;
    cmbFind: TComboBox;
    btnFind: TCorelButton;
    btnCancel: TCorelButton;
    procedure btnFindClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmFindHex: TfrmFindHex;

implementation

uses dMain, fDoc, UDialogSettings;

{$R *.dfm}

procedure TfrmFindHex.btnFindClick(Sender: TObject);
var
  aStart: Integer;
  aEnd: Integer;
  pSearch: PChar;
  FindPos, FindLen: Integer;
begin
  SaveOpts(Self);
  if dmMain.SelDoc = Nil then exit;
  pSearch := PChar(cmbFind.Text);

  with dmMain.SelDoc do begin
    if chkCaret.Checked then
      aStart := hxMain.GetCursorPos
    else
      aStart := 0;
    aEnd := hxMain.DataSize - 1;
    FindLen := StrLen(pSearch);
    FindPos := hxMain.Find(pSearch, FindLen, aStart, aEnd, Not chkCase.Checked, Not chkCase.Checked);
    if FindPos = -1 then begin
      ShowMessage('Data not found.');
      exit;
    end;

    hxMain.SelStart := FindPos + FindLen - 1;
    hxMain.SelEnd := FindPos;
  end;
  close;
end;

procedure TfrmFindHex.FormShow(Sender: TObject);
begin
  LoadOpts(Self);
end;

end.