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#include "FiveWin.ch"

function CaptureSignature()

   local oDlg, oSig, lPaint := .F., cFile := Lower( "signature.bmp" ), hDC
   local lReset := .f.
   local oBrush
   local nPenWidth := 4, oPenSig
   local nTop := 2, nBottom := 0
   local aCoord
   local nColor := CLR_WHITE

   oBrush := TBrush():New( , nColor )
   DEFINE DIALOG oDlg TITLE "Signature" PIXEL ;
      RESOURCE "DLG_Sign"

   DEFINE PEN oPenSig  WIDTH nPenWidth COLOR CLR_BLACK

   REDEFINE SAY oSig ID 200 PROMPT "" OF oDlg
   oSig:nClrPane := nRgb( 255,255,255 )
   oSig:oBrush  := oBrush

   redefine button prompt 'Save';
      id 100 of oDlg update;
      ACTION ( oSig:SaveToBmp( cFile ), oDlg:End() )

   redefine button prompt 'Cancel';
      id 101 of oDlg ;
      action ( lReturn := .f., oDlg:End() )

   redefine button prompt 'Clear';
      id 102 of oDlg ;
      action ( lPaint := .F., ;
         FillRect( hDC, GetClientRect( oSig:hWnd ), oBrush:hBrush ), ;
         oSig:refresh(.t.) )

   oSig:lWantClick := .T.
   // Fixed row, col to y, x conversion, x/y designation was reversed
   oSig:bLButtonUp := { | y, x, z | DoDraw( hDC, x, y, lPaint := .F.,, oPenSig ) }
   // Added limits to Top and Bottom in case users draw off canvas
   oSig:bMMoved    := { | y, x, z | ( ;
      if( y >= nBottom .or. y <= nTop , lReset := .T., lReset := .f. ), ;
      DoDraw( hDC, x, y , lPaint, lReset, oPenSig )) }
   oSig:bLClicked  := { | y, x, z | DoDraw( hDC, x, y, lPaint := .T., .t., oPenSig  ) }
   // If button released when not on Signature area
   oDlg:bLButtonUp := { || lPaint := .F. }

   ACTIVATE DIALOG oDlg CENTER ;
      ON INIT ( aCoord := GetCoors( oSig:hWnd ), ;
         nBottom := aCoord[3]- aCoord[1]-2, ;
         hDC := GetDC( oSig:hWnd ), oSig:nClrPane := nColor ) ;
      VALID ( ReleaseDC( oSig:hWnd, hDC ), .T. )
   RELEASE PEN oPenSig

return nil

static function DoDraw( hDc, x, y, lPaint, lReset, oPen )
   if ! lPaint .or. ( lReset != nil .and. lReset )
      MoveTo( hDC, x, y )
   else
      LineTo( hDc, x, y, oPen:hPen )
   endIf
return nil

DLG_Sign DIALOG -32768, 65, 204, 99
STYLE DS_SYSMODAL | DS_MODALFRAME | 0x4L | WS_POPUP | WS_VISIBLE | WS_CAPTION
CAPTION "Signature"
FONT 12, "MS Sans Serif"
{
 PUSHBUTTON "Save", 100, 6, 3, 46, 14
 PUSHBUTTON "Cancel", 101, 84, 3, 35, 14
 PUSHBUTTON "Clear", 102, 162, 3, 35, 14
 GROUPBOX "", 104, 4, 17, 198, 68, BS_GROUPBOX
 CONTROL "", 200, "STATIC", SS_WHITERECT | WS_CHILD | WS_VISIBLE, 5, 22, 196, 61
 RTEXT "X", -1, 1, 78, 5, 9
 CTEXT "I agree that this inspection is correct.", -1, 13, 88, 172, 9
}