{*******************************************************}
{                                                       }
{       ProcessWatermark                                }
{                                                       }
{       Copyright (C) 2025 kku                          }
{                                                       }
{*******************************************************}

unit ProcessWM;

interface

uses
  Winapi.Windows, System.Classes, Vcl.Graphics;

function ProcessWartermark(DC: HDC; bStartPage: Boolean = true): Boolean;

implementation

uses
  AppCtrlDefine, ApiHookPrint, AppHook, Tocsg.Safe, System.SysUtils, Condition,
  Tocsg.Graphic, Winapi.GDIPAPI, Tocsg.Convert;

function ProcessWartermark(DC: HDC; bStartPage: Boolean = true): Boolean;
var
  nW, nH, i, nX, nY,
  nGapW, nGapH, nDefDivFont: Integer;
  sText: String;
  MemCanvas: TCanvas;
  hbmp, hOldBmp: HBITMAP;
  pen: HPEN;
  CtrlOpt: TAppCtrlOpt;
  oldColor: TColor;
  r: TRect;
begin
  Result := true;

  if _PrtDC <> DC then
    exit;

//  exit;

  SaveDC(DC);
  gAppHook.Helper.bIsWaterMaking_ := true;
  try
    try
      if gAppHook.Helper.IsExcel then
      begin
      // 클리핑 제거 25_0605 14:51:11 kku
        SelectClipRgn(DC, 0);

      // 엑셀은 출력시트 설정에 따라 전체 영역으로 잡히는 않는 현상이 있다.. 24_0805 13:46:31 kku
        nW := GetDeviceCaps(DC, HORZRES); // 세로모드 : 4961, 가로모드 : 7016, 크로미움 프린트 인쇄시 4760
        nH := GetDeviceCaps(DC, VERTRES); // 세로모드 : 7016, 가로모드 : 4961, 크로미움 프린트 인쇄시 6814
//        LogToReg('Step-1-excel', Format('W = %d, H = %d,', [nW, nH]));
      end else
      begin
//        if bStartPage then // 이럴리 없겠지만 안전장치
//          exit;

        ZeroMemory(@r, SizeOf(r));
        GetClipBox(DC, r);
        nW := r.Width;
        nH := r.Height;
//        LogToReg('Step-1', Format('W = %d, H = %d,', [nW, nH]));
//        LogToReg('Step-2', Format('W = %d, H = %d,', [GetDeviceCaps(DC, HORZRES), GetDeviceCaps(DC, VERTRES)]));

        if nW = 0 then
          nW := GetDeviceCaps(DC, HORZRES); // 세로모드 : 4961, 가로모드 : 7016, 크로미움 프린트 인쇄시 4760
        if nH = 0 then
          nH := GetDeviceCaps(DC, VERTRES); // 세로모드 : 7016, 가로모드 : 4961, 크로미움 프린트 인쇄시 6814
      end;

//      nX := GetDeviceCaps(DC, ASPECTX);
//      nY := GetDeviceCaps(DC, ASPECTY);

//      bStartPage := false;
      Guard(MemCanvas, TCanvas.Create);
//      if bStartPage then
//        MemCanvas.Handle := CreateCompatibleDC(DC)
//      else
        MemCanvas.Handle := DC; //CreateCompatibleDC(DC);
      hbmp := CreateCompatibleBitmap(MemCanvas.Handle, nW, nH);
      hOldBmp := SelectObject(MemCanvas.Handle, hbmp);

//      gAppHook.Log(Format('ProcessWartermark() - DocSize X=%d, Y=%d, W=%d, H=%d, dc=%d', [nX, nY, nW, nH, DC]));
//      LogToReg('Step0', Format('ProcessWartermark() - DocSize X=%d, Y=%d, W=%d, H=%d, dc=%d', [nX, nY, nW, nH, DC]));

//      if bStartPage then
//        PatBlt(MemCanvas.Handle, 0, 0, nW, nH, WHITENESS);

//      pen := CreatePen(PS_SOLID, 1, RGB(0, 255, 0));
//      hOldBmp := SelectObject(MemCanvas.Handle, pen);

      nGapW := 0;
      nGapH := 0;

//      SetBkMode(MemCanvas.Handle, TRANSPARENT);
//      MemCanvas.Font.Orientation := 250;

      MemCanvas.Font.Name := 'Tahoma';
      if gAppHook.Helper.bSmallFont_ then
      begin
        if Pos('PDF', UpperCase(_sPrtName)) = 0 then
        begin
        // 일반 프린터에서만 밀리는 현상이 있어서 갭을 준다.. 24_0627 10:52:33 kku
          nGapW := 19;
          nGapH := 17;
        end;

        nDefDivFont := 180;

      end else
      begin
        if gAppHook.Helper.bEndDocProc_ then
        begin
          if CompareText(gAppHook.ModuleName, 'winword.exe') = 0 then
            nGapH := 70;
        end;

        nDefDivFont := 190;
      end;

    // 기본 폰트 조절
       if nW > nH then
        MemCanvas.Font.Size := nW div 180
      else
        MemCanvas.Font.Size := nH div 180;

      oldColor := GetTextColor(DC);
    // 폰트색 지정... 프로그램에 따라 지정되는 설정이 다르다
      MemCanvas.Font.Color := clGray; // 메모장등
      SetTextColor(DC, clGray); // 엑셀등

      try
        CtrlOpt := gAppHook.Helper.CtrlOpt;
//        sText := CtrlOpt.sPrintWaterTxt;
        with CtrlOpt do
        begin
          if CtrlOpt.sUName <> '' then
            sText := Format('%s / %s / %s / %s', [sUName, sDeptName, sEmpNo, DateTimeToStr(Now)])
          else if sDeptName <> '' then
            sText := Format('%s / %s / %s', [sDeptName, sEmpNo, DateTimeToStr(Now)])
          else
            sText := Format('%s / %s', [sEmpNo, DateTimeToStr(Now)]);
        end;

        SetBkMode(MemCanvas.Handle, TRANSPARENT);

        MemCanvas.Font.Color := clBlack;
        MemCanvas.TextOut(nW - MemCanvas.TextWidth(sText) + nGapW,
                          nH - MemCanvas.TextHeight(sText) + nGapH, sText);

        sText := gAppHook.Helper.sCurDocName_;
        MemCanvas.TextOut(nGapW, nH - MemCanvas.TextHeight(sText) + nGapH, sText);

// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
        if nW < nH then
          MemCanvas.Font.Size := nW div (nDefDivFont div 5) // 가운데 폰트 크기 키우려면 숫자를 키우면 됨
        else
          MemCanvas.Font.Size := nH div (nDefDivFont div 5);
        MemCanvas.Font.Style := MemCanvas.Font.Style + [fsBold];

        if _bmpWater = nil then
        begin
          sText := 'ToCSG BSOne';
          _bmpWater := TBitmap.Create;
          _bmpWater.SetSize(MemCanvas.TextWidth(sText), MemCanvas.TextHeight(sText));
          _bmpWater.Canvas.Font.Assign(MemCanvas.Font);
          _bmpWater.Canvas.Font.Color := clSilver;
          _bmpWater.Canvas.TextOut(0, 0, sText);
          _bmpWater.TransparentColor := clWhite;
          _bmpWater.Transparent := true;
          RotateBitmap_PlgBlt(_bmpWater, -0.8, true, clWhite);
        end;

        if _bmpWater <> nil then
        begin
          var cTrMatrix: TColorMatrix;
          ZeroMemory(@cTrMatrix, SizeOf(cTrMatrix));
        // 회색
//          cTrMatrix[0][0] := 0.299;
//          cTrMatrix[0][1] := 0.299;
//          cTrMatrix[0][2] := 0.299;
//          cTrMatrix[1][0] := 0.587;
//          cTrMatrix[1][1] := 0.587;
//          cTrMatrix[1][2] := 0.587;
//          cTrMatrix[2][0] := 0.114;
//          cTrMatrix[2][1] := 0.114;
//          cTrMatrix[2][2] := 0.114;
//          cTrMatrix[3][3] := 0.26; // 투명도 1.0 ~ 0.22
//          cTrMatrix[4][4] := 1.0;

        // 위 처럼하면 컬러랑 흑백이 섞인 출력의 경우 흑백에 로고가 안찍히는 문제 확인됨 24_0805 16:02:28 kku
          cTrMatrix[0][0] := 1;
          cTrMatrix[1][1] := 1;
          cTrMatrix[2][2] := 1;
          cTrMatrix[3][3] := BooleanToFloat(gAppHook.Helper.CtrlOpt.fWmTran <> 0.0, gAppHook.Helper.CtrlOpt.fWmTran, 0.26); // 투명도 1.0 ~ 0.22
//          cTrMatrix[3][3] := 0.05; // 투명도 1.0 ~ 0.22
          cTrMatrix[4][4] := 1;

          Dec(nW, nGapW);
          Dec(nH, nGapH);
          nX := (nW div 4) - (_bmpWater.Width div 2);
          nY := (nH div 4) - (_bmpWater.Height div 2);

          if not gAppHook.Helper.IsExcel or
             ( gAppHook.Helper.IsExcel and bStartPage and not _bDoStartProc) or
             ( gAppHook.Helper.IsExcel and not bStartPage ) then
          begin
            DrawBitmapWaterEx(MemCanvas.Handle, nX, nY, _bmpWater, @cTrMatrix);
          end;
        end;
// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

//        if bStartPage then
//          BitBlt(DC, 0, 0, nW, nH, MemCanvas.Handle, 0, 0, SRCCOPY);

        SelectObject(MemCanvas.Handle, hOldBmp);

  //      DeleteObject(pen);
        DeleteObject(hbmp);
//        if bStartPage then
//          DeleteDC(MemCanvas.Handle);
        MemCanvas.Handle := 0;
      finally
        SetTextColor(DC, oldColor);
      end;

//      gAppHook.Log(Format('ProcessWartermark() - Completed, LastError=%d', [GetLastError]));
    except
    // 실패하면 출력 안되게 해준다 22_0907 14:28:52 kku
      Result := false;
      DeleteDC(DC);
    end;
  finally
    gAppHook.Helper.bIsWaterMaking_ := false;
    RestoreDC(DC, -1);
  end;
end;

end.