[tkreuzer] 33792: preserve code for NtGdiCreateEnhMetaFile from win32k (where it's going to be removed later) in gdi32 (where it's going to be implemented later)

Author: tkreuzer
Date: Sat May 31 18:15:34 2008
New Revision: 33792

URL: http://svn.reactos.org/svn/reactos?rev=33792&view=rev
Log:
preserve code for NtGdiCreateEnhMetaFile from win32k (where it's going to be removed later) in gdi32 (where it's going to be implemented later)

Modified:
    trunk/reactos/dll/win32/gdi32/objects/enhmfile.c

Modified: trunk/reactos/dll/win32/gdi32/objects/enhmfile.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/enh...
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/enhmfile.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/gdi32/objects/enhmfile.c [iso-8859-1] Sat May 31 18:15:34 2008
@@ -458,6 +458,211 @@
   return rc;
 }

+#if 0
+/* Previous implementation in win32k */
+HDC
+STDCALL
+NtGdiCreateEnhMetaFile(HDC  hDCRef,
+                           LPCWSTR  File,
+                           CONST LPRECT  Rect,
+                           LPCWSTR  Description)
+{
+   PDC Dc;
+   HDC ret = NULL;
+   DWORD length = 0;
+   HDC tempHDC;
+   DWORD MemSize;
+   DWORD dwDesiredAccess;
+
+   tempHDC = hDCRef;
+   if (hDCRef == NULL)
+   {
+       /* FIXME ??
+        * Shall we create hdc NtGdiHdcCompatible hdc ??
+        */
+       UNICODE_STRING DriverName;
+       RtlInitUnicodeString(&DriverName, L"DISPLAY");
+       //IntGdiCreateDC(&DriverName, NULL, NULL, NULL, FALSE);
+           tempHDC = NtGdiOpenDCW( &DriverName,
+                                          NULL,
+                                          NULL,
+                                             0,  // DCW 0 and ICW 1.
+                                          NULL,
+                                  (PVOID) NULL,
+                                  (PVOID) NULL );
+   }
+
+   GDIOBJ_SetOwnership(GdiHandleTable, tempHDC, PsGetCurrentProcess());
+   DC_SetOwnership(tempHDC, PsGetCurrentProcess());
+
+   Dc = DC_LockDc(tempHDC);
+   if (Dc == NULL)
+   {
+	  if (hDCRef == NULL)
+	  {
+          NtGdiDeleteObjectApp(tempHDC);
+	  }
+      SetLastWin32Error(ERROR_INVALID_HANDLE);
+      return NULL;
+   }
+
+   if(Description)
+   {
+      length = wcslen(Description);
+      length += wcslen(Description + length + 1);
+      length += 3;
+      length *= 2;
+   }
+
+   MemSize = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
+
+   if (!(Dc->emh = EngAllocMem(FL_ZERO_MEMORY, MemSize, 0)))
+   {
+       DC_UnlockDc(Dc);
+       if (hDCRef == NULL)
+       {
+           NtGdiDeleteObjectApp(tempHDC);
+       }
+       SetLastWin32Error(ERROR_INVALID_HANDLE);
+       return NULL;
+   }
+
+   Dc->emh->iType = EMR_HEADER;
+   Dc->emh->nSize = MemSize;
+
+   Dc->emh->rclBounds.left = Dc->emh->rclBounds.top = 0;
+   Dc->emh->rclBounds.right = Dc->emh->rclBounds.bottom = -1;
+
+   if(Rect)
+   {
+      Dc->emh->rclFrame.left   = Rect->left;
+      Dc->emh->rclFrame.top    = Rect->top;
+      Dc->emh->rclFrame.right  = Rect->right;
+      Dc->emh->rclFrame.bottom = Rect->bottom;
+   }
+   else
+   {
+      /* Set this to {0,0 - -1,-1} and update it at the end */
+      Dc->emh->rclFrame.left = Dc->emh->rclFrame.top = 0;
+      Dc->emh->rclFrame.right = Dc->emh->rclFrame.bottom = -1;
+   }
+
+   Dc->emh->dSignature = ENHMETA_SIGNATURE;
+   Dc->emh->nVersion = 0x10000;
+   Dc->emh->nBytes = Dc->emh->nSize;
+   Dc->emh->nRecords = 1;
+   Dc->emh->nHandles = 1;
+
+   Dc->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
+   Dc->emh->nDescription = length / 2;
+
+   Dc->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
+
+   Dc->emh->nPalEntries = 0; /* I guess this should start at 0 */
+
+   /* Size in pixels */
+   Dc->emh->szlDevice.cx = NtGdiGetDeviceCaps(tempHDC, HORZRES);
+   Dc->emh->szlDevice.cy = NtGdiGetDeviceCaps(tempHDC, VERTRES);
+
+   /* Size in millimeters */
+   Dc->emh->szlMillimeters.cx = NtGdiGetDeviceCaps(tempHDC, HORZSIZE);
+   Dc->emh->szlMillimeters.cy = NtGdiGetDeviceCaps(tempHDC, VERTSIZE);
+
+   /* Size in micrometers */
+   Dc->emh->szlMicrometers.cx = Dc->emh->szlMillimeters.cx * 1000;
+   Dc->emh->szlMicrometers.cy = Dc->emh->szlMillimeters.cy * 1000;
+
+   if(Description)
+   {
+      memcpy((char *)Dc->emh + sizeof(ENHMETAHEADER), Description, length);
+   }
+
+   ret = tempHDC;
+   if (File)
+   {
+      OBJECT_ATTRIBUTES ObjectAttributes;
+      IO_STATUS_BLOCK IoStatusBlock;
+      IO_STATUS_BLOCK Iosb;
+      UNICODE_STRING NtPathU;
+      NTSTATUS Status;
+      ULONG FileAttributes = (FILE_ATTRIBUTE_VALID_FLAGS & ~FILE_ATTRIBUTE_DIRECTORY);
+
+      DPRINT1("Trying Create EnhMetaFile\n");
+
+      /* disk based metafile */
+      dwDesiredAccess = GENERIC_WRITE | GENERIC_READ | SYNCHRONIZE | FILE_READ_ATTRIBUTES;
+
+      if (!RtlDosPathNameToNtPathName_U (File, &NtPathU, NULL, NULL))
+      {
+         DC_UnlockDc(Dc);
+         if (hDCRef == NULL)
+         {
+             NtGdiDeleteObjectApp(tempHDC);
+         }
+         DPRINT1("Can not Create EnhMetaFile\n");
+         SetLastWin32Error(ERROR_PATH_NOT_FOUND);
+         return NULL;
+      }
+
+      InitializeObjectAttributes(&ObjectAttributes, &NtPathU, 0, NULL, NULL);
+
+      Status = NtCreateFile (&Dc->hFile, dwDesiredAccess, &ObjectAttributes, &IoStatusBlock,
+                             NULL, FileAttributes, 0, FILE_OVERWRITE_IF, FILE_NON_DIRECTORY_FILE,
+                             NULL, 0);
+
+      RtlFreeHeap(RtlGetProcessHeap(), 0, NtPathU.Buffer);
+
+      if (!NT_SUCCESS(Status))
+      {
+         Dc->hFile = NULL;
+         DC_UnlockDc(Dc);
+         if (hDCRef == NULL)
+         {
+             NtGdiDeleteObjectApp(tempHDC);
+         }
+         DPRINT1("Create EnhMetaFile fail\n");
+         SetLastWin32Error(ERROR_INVALID_HANDLE);
+         return NULL;
+      }
+
+      SetLastWin32Error(IoStatusBlock.Information == FILE_OVERWRITTEN ? ERROR_ALREADY_EXISTS : 0);
+
+      Status = NtWriteFile(Dc->hFile, NULL, NULL, NULL, &Iosb, (PVOID)&Dc->emh, Dc->emh->nSize, NULL, NULL);
+      if (Status == STATUS_PENDING)
+      {
+          Status = NtWaitForSingleObject(Dc->hFile,FALSE,NULL);
+          if (NT_SUCCESS(Status))
+          {
+              Status = Iosb.Status;
+          }
+      }
+
+      if (NT_SUCCESS(Status))
+      {
+          ret = tempHDC;
+          DC_UnlockDc(Dc);
+      }
+      else
+      {
+          Dc->hFile = NULL;
+          DPRINT1("Write to EnhMetaFile fail\n");
+          SetLastWin32Error(ERROR_CAN_NOT_COMPLETE);
+          ret = NULL;
+          DC_UnlockDc(Dc);
+          if (hDCRef == NULL)
+          {
+             NtGdiDeleteObjectApp(tempHDC);
+          }
+      }
+    }
+    else
+    {
+      DC_UnlockDc(Dc);
+    }
+
+    return ret;
+}
+#endif