From 7c0ca05a4c7fec251bd5db9a3c17a69b5707fe6c Mon Sep 17 00:00:00 2001
From: James Tabor <james.tabor@reactos.org>
Date: Fri, 18 Apr 2008 04:11:13 +0000
Subject: [PATCH] Implement Win32k-Gdi32: GetAspectRatioFilter and
 SetMapperFlags.

svn path=/trunk/; revision=33016
---
 reactos/dll/win32/gdi32/misc/stubs.c         | 16 ------
 reactos/dll/win32/gdi32/objects/font.c       | 54 ++++++++++++++++++++
 reactos/subsystems/win32/win32k/objects/dc.c | 28 +++++++++-
 3 files changed, 80 insertions(+), 18 deletions(-)

diff --git a/reactos/dll/win32/gdi32/misc/stubs.c b/reactos/dll/win32/gdi32/misc/stubs.c
index 93940cae132..214fcb04fe9 100644
--- a/reactos/dll/win32/gdi32/misc/stubs.c
+++ b/reactos/dll/win32/gdi32/misc/stubs.c
@@ -254,22 +254,6 @@ SetBoundsRect(HDC hdc,
     return NtGdiSetBoundsRect(hdc, (LPRECT)prc, flags);
 }
 
-
-/*
- * @unimplemented
- */
-DWORD
-STDCALL
-SetMapperFlags(
-	HDC	a0,
-	DWORD	a1
-	)
-{
-	UNIMPLEMENTED;
-	SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
-	return 0;
-}
-
 /*
  * @unimplemented
  */
diff --git a/reactos/dll/win32/gdi32/objects/font.c b/reactos/dll/win32/gdi32/objects/font.c
index 1a89c68fdbc..02fdf55f8c0 100644
--- a/reactos/dll/win32/gdi32/objects/font.c
+++ b/reactos/dll/win32/gdi32/objects/font.c
@@ -1677,6 +1677,60 @@ TranslateCharsetInfo(
 }
 
 
+/*
+ * @implemented
+ */
+DWORD
+STDCALL
+SetMapperFlags(
+	HDC	hDC,
+	DWORD	flags
+	)
+{
+  DWORD Ret = GDI_ERROR;
+  PDC_ATTR Dc_Attr;
+#if 0
+  if (GDI_HANDLE_GET_TYPE(hDC) != GDI_OBJECT_TYPE_DC)
+  {
+    if (GDI_HANDLE_GET_TYPE(hDC) == GDI_OBJECT_TYPE_METADC)
+      return MFDRV_SetMapperFlags( hDC, flags);
+    else
+    {
+      PLDC pLDC = Dc_Attr->pvLDC;
+      if ( !pLDC )
+      {
+         SetLastError(ERROR_INVALID_HANDLE);
+         return GDI_ERROR;
+      }
+      if (pLDC->iType == LDC_EMFLDC)
+      {
+        return EMFDRV_SetMapperFlags( hDC, flags);
+      }
+    }
+  }
+#endif
+  if (!GdiGetHandleUserData((HGDIOBJ) hDC, GDI_OBJECT_TYPE_DC, (PVOID) &Dc_Attr)) return GDI_ERROR;
+
+  if (NtCurrentTeb()->GdiTebBatch.HDC == (ULONG)hDC)
+  {
+     if (Dc_Attr->ulDirty_ & DC_FONTTEXT_DIRTY)
+     {
+       NtGdiFlush();
+       Dc_Attr->ulDirty_ &= ~(DC_MODE_DIRTY|DC_FONTTEXT_DIRTY);
+     }
+  }
+
+  if ( flags & ~1 )
+     SetLastError(ERROR_INVALID_PARAMETER);
+  else
+  {
+     Ret = Dc_Attr->flFontMapper;
+     Dc_Attr->flFontMapper = flags;
+  }
+  return Ret;
+}
+
+
 /*
  * @unimplemented
  */
diff --git a/reactos/subsystems/win32/win32k/objects/dc.c b/reactos/subsystems/win32/win32k/objects/dc.c
index b680f04efe4..1bfb80fdcff 100644
--- a/reactos/subsystems/win32/win32k/objects/dc.c
+++ b/reactos/subsystems/win32/win32k/objects/dc.c
@@ -1168,8 +1168,24 @@ BOOL FASTCALL
 IntGetAspectRatioFilter(PDC pDC,
                         LPSIZE AspectRatio)
 {
-  UNIMPLEMENTED;
-  return FALSE;
+  PDC_ATTR pDc_Attr;
+  
+  pDc_Attr = pDC->pDc_Attr;
+  if ( !pDc_Attr ) pDc_Attr = &pDC->Dc_Attr;
+
+  if ( pDc_Attr->flFontMapper & 1 ) // TRUE assume 1.
+  {
+   // "This specifies that Windows should only match fonts that have the
+   // same aspect ratio as the display.", Programming Windows, Fifth Ed.
+     AspectRatio->cx = ((PGDIDEVICE)pDC->pPDev)->GDIInfo.ulLogPixelsX;
+     AspectRatio->cy = ((PGDIDEVICE)pDC->pPDev)->GDIInfo.ulLogPixelsY;
+  }
+  else
+  {
+     AspectRatio->cx = 0;
+     AspectRatio->cy = 0;
+  }
+  return TRUE;
 }
 
 BOOL STDCALL
@@ -2262,6 +2278,14 @@ NtGdiGetAndSetDCDword(
     case GdiGetSetSelectFont:
       break;
     case GdiGetSetMapperFlagsInternal:
+      if (dwIn & ~1)
+      {
+         SetLastWin32Error(ERROR_INVALID_PARAMETER);
+         Ret = FALSE;
+         break;
+      }
+      SafeResult = Dc_Attr->flFontMapper;
+      Dc_Attr->flFontMapper = dwIn;      
       break;
     case GdiGetSetMapMode:
       SafeResult = IntGdiSetMapMode( dc, dwIn);