[jimtabor] 24825: Example coding for Enhance Meta File and Meta DC implementation. - Add printing.c - Add a new CreateEnhMetaFileW

Author: jimtabor
Date: Sat Nov 25 23:21:22 2006
New Revision: 24825

URL: http://svn.reactos.org/svn/reactos?rev=24825&view=rev
Log:
Example coding for Enhance Meta File and Meta DC implementation.
- Add printing.c
- Add a new CreateEnhMetaFileW

Added:
    trunk/reactos/dll/win32/gdi32/objects/painting.c   (with props)
Modified:
    trunk/reactos/dll/win32/gdi32/objects/metafile.c

Modified: trunk/reactos/dll/win32/gdi32/objects/metafile.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/me…
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/metafile.c (original)
+++ trunk/reactos/dll/win32/gdi32/objects/metafile.c Sat Nov 25 23:21:22 2006
@@ -131,6 +131,137 @@
   return rc;
 }
 
+#if 0
+
+HDC WINAPI CreateEnhMetaFileW(
+    HDC           hDC,        /* [in] optional reference DC */
+    LPCWSTR       filename,   /* [in] optional filename for disk metafiles */
+    const RECT*   rect,       /* [in] optional bounding rectangle */
+    LPCWSTR       description /* [in] optional description */
+    )
+{
+    HDC mDC;
+    PDC_ATTR Dc_Attr;
+    PLDC pLDC;
+    HANDLE hFile;
+    PENHMETAFILE EmfDC;
+    DWORD size = 0, length = 0;
+
+    mDC = NtGdiCreateMetafileDC( hDC ); // Basically changes the handle from 1xxxx to
46xxxx.
+    // If hDC == NULL, works just like createdc in win32k.
+
+    if ( !GdiGetHandleUserData((HGDIOBJ) mDC, (PVOID) &Dc_Attr))
+    {
+      SetLastError (ERROR_INVALID_PARAMETER);
+      return NULL; // need to delete the handle?
+    }
+
+    pLDC = LocalAlloc(LMEM_ZEROINIT, sizeof(LDC));
+                                                                                
+    Dc_Attr->pvLDC = pLDC;
+    pLDC->hDC = mDC;
+    pLDC->iType = LDC_EMFDC
+
+
+    if (description)
+    { /* App name\0Title\0\0 */
+        length = lstrlenW(description);
+        length += lstrlenW(description + length + 1);
+        length += 3;
+        length *= 2;
+    }
+
+    size = sizeof(ENHMETAFILE) + (length + 3) / 4 * 4;
+
+    //Allocate ENHMETAFILE structure
+    EmfDC = LocalAlloc(LMEM_ZEROINIT, sizeof(ENHMETAFILE));
+    pLDC->pvEmfDC = EmfDC;
+
+    EmfDC->handles_size = HANDLE_LIST_INC;
+    EmfDC->cur_handles = 1;
+
+    EmfDC->horzres = GetDeviceCaps(mDC, HORZRES);
+    EmfDC->vertres = GetDeviceCaps(mDC, VERTRES);
+    EmfDC->logpixelsx = GetDeviceCaps(mDC, LOGPIXELSX);
+    EmfDC->logpixelsy = GetDeviceCaps(mDC, LOGPIXELSY);
+    EmfDC->horzsize = GetDeviceCaps(mDC, HORZSIZE);
+    EmfDC->vertsize = GetDeviceCaps(mDC, VERTSIZE);
+    EmfDC->bitspixel = GetDeviceCaps(mDC, BITSPIXEL);
+    EmfDC->textcaps = GetDeviceCaps(mDC, TEXTCAPS);
+    EmfDC->rastercaps = GetDeviceCaps(mDC, RASTERCAPS);
+    EmfDC->technology = GetDeviceCaps(mDC, TECHNOLOGY);
+    EmfDC->planes = GetDeviceCaps(mDC, PLANES);
+
+    EmfDC->emf = LocalAlloc(LMEM_ZEROINIT, size);
+
+    EmfDC->emf->iType = EMR_HEADER;
+    EmfDC->emf->nSize = size;
+                                                                                
+    EmfDC->emf->rclBounds.left = EmfDC->emf->rclBounds.top = 0;
+    EmfDC->emf->rclBounds.right = EmfDC->emf->rclBounds.bottom = -1;
+                                                                                
+    if(rect)
+    {
+        EmfDC->emf->rclFrame.left   = rect->left;
+        EmfDC->emf->rclFrame.top    = rect->top;
+        EmfDC->emf->rclFrame.right  = rect->right;
+        EmfDC->emf->rclFrame.bottom = rect->bottom;
+    }
+    else
+    {  /* Set this to {0,0 - -1,-1} and update it at the end */
+        EmfDC->emf->rclFrame.left = EmfDC->emf->rclFrame.top = 0;
+        EmfDC->emf->rclFrame.right = EmfDC->emf->rclFrame.bottom = -1;
+    }
+
+    EmfDC->emf->dSignature = ENHMETA_SIGNATURE;
+    EmfDC->emf->nVersion = 0x10000;
+    EmfDC->emf->nBytes = pLDC->pvEmfDC->nSize;
+    EmfDC->emf->nRecords = 1;
+    EmfDC->emf->nHandles = 1;
+                                                                                
+    EmfDC->emf->sReserved = 0; /* According to docs, this is reserved and must be 0
*/
+    EmfDC->emf->nDescription = length / 2;
+                                                                                
+    EmfDC->emf->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
+                                                                                
+    EmfDC->emf->nPalEntries = 0; /* I guess this should start at 0 */
+                                                                                
+    /* Size in pixels */
+    EmfDC->emf->szlDevice.cx = EmfDC->horzres;
+    EmfDC->emf->szlDevice.cy = EmfDC->vertres;
+                                                                                
+    /* Size in millimeters */
+    EmfDC->emf->szlMillimeters.cx = EmfDC->horzsize;
+    EmfDC->emf->szlMillimeters.cy = EmfDC->vertsize;
+                                                                                
+    /* Size in micrometers */
+    EmfDC->emf->szlMicrometers.cx = EmfDC->horzsize * 1000;
+    EmfDC->emf->szlMicrometers.cy = EmfDC->vertsize * 1000;
+                                                                                
+    RtlCopyMemory((char *)EmfDC->emf + sizeof(ENHMETAHEADER), description, length);
+
+    if (filename)  /* disk based metafile */
+    {
+        if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
+				 NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE)
+        {
+            EMFDRV_DeleteDC( EmfDC );
+            return NULL;
+        }
+        if (!WriteFile( hFile, (LPSTR)EmfDC->emf, size, NULL, NULL ))
+        {
+            EMFDRV_DeleteDC( EmfDC );
+            return NULL;
+	}
+	EmfDC.hFile = hFile;
+	EmfDC->emf.iType = 2;
+    }
+    else
+        EmfDC->emf.iType = 1;
+
+    return mDC;
+}
+#endif
 
 /*
  * @implemented

Added: trunk/reactos/dll/win32/gdi32/objects/painting.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/objects/pa…
==============================================================================
--- trunk/reactos/dll/win32/gdi32/objects/painting.c (added)
+++ trunk/reactos/dll/win32/gdi32/objects/painting.c Sat Nov 25 23:21:22 2006
@@ -1,0 +1,185 @@
+#include "precomp.h"
+
+
+/*
+ * @unimplemented
+ */
+BOOL
+STDCALL
+NewArc(
+	HDC	hDC,
+	int	a1,
+	int	a2,
+	int	a3,
+	int	a4,
+	int	a5,
+	int	a6,
+	int	a7,
+	int	a8
+	)
+{
+// Handle something other than a normal dc object.
+ if (GDI_HANDLE_GET_TYPE(hDC) != GDI_OBJECT_TYPE_DC)
+ {
+    if (GDI_HANDLE_GET_TYPE(hDC) == GDI_OBJECT_TYPE_METADC)
+//    Call Wine (rewrite of) MFDRV_MetaParam8
+      return MFDRV_MetaParam8( hDC, META_ARC, a1, a2, a3, a4, a5, a6, a7, a8)
+    else
+    { 
+      PDC_ATTR Dc_Attr;
+      PLDC pLDC;
+      GdiGetHandleUserData((HGDIOBJ) hDC, (PVOID) &Dc_Attr);
+      pLDC = Dc_Attr->pvLDC;
+      if ( !pLDC )
+      {
+         SetLastError(ERROR_INVALID_HANDLE)
+         return FALSE;
+      }
+      if (pLDC->iType == LDC_EMFLDC)
+      {
+//      Call Wine (rewrite of) EMFDRV_ArcChordPie
+        BOOL Ret = EMFDRV_ArcChordPie( hDC, a1, a2, a3, a4, a5, a6, a7, a8, EMR_ARC);
+        return Ret;
+      }
+      return FALSE;  
+    } 
+ }
+ return NtGdiArcInternal(GdiTypeArc, hDC, a1, a2, a3, a4, a5, a6, a7, a8);
+}
+
+
+/*
+ * @unimplemented
+ */
+BOOL
+STDCALL
+NewArcTo(
+	HDC	hDC,
+	int	a1,
+	int	a2,
+	int	a3,
+	int	a4,
+	int	a5,
+	int	a6,
+	int	a7,
+	int	a8
+	)
+{
+// Handle something other than a normal dc object.
+ if (GDI_HANDLE_GET_TYPE(hDC) != GDI_OBJECT_TYPE_DC)
+ {
+    if (GDI_HANDLE_GET_TYPE(hDC) == GDI_OBJECT_TYPE_METADC)
+      return FALSE; //No meta support for ArcTo
+    else
+    { 
+      PDC_ATTR Dc_Attr;
+      PLDC pLDC;
+      GdiGetHandleUserData((HGDIOBJ) hDC, (PVOID) &Dc_Attr);
+      pLDC = Dc_Attr->pvLDC;
+      if ( !pLDC )
+      {
+         SetLastError(ERROR_INVALID_HANDLE)
+         return FALSE;
+      }
+      if (pLDC->iType == LDC_EMFLDC)
+      {
+        BOOL Ret = EMFDRV_ArcChordPie( hDC, a1, a2, a3, a4, a5, a6, a7, a8, EMR_ARCTO);
+        return Ret;
+      }
+      return FALSE;
+    }
+ }
+ return NtGdiArcInternal(GdiTypeArcTo, hDC, a1, a2, a3, a4, a5, a6, a7, a8);
+}
+
+
+/*
+ * @unimplemented
+ */
+BOOL
+STDCALL
+Chord(
+	HDC	hDC,
+	int	a1,
+	int	a2,
+	int	a3,
+	int	a4,
+	int	a5,
+	int	a6,
+	int	a7,
+	int	a8
+	)
+{
+// Handle something other than a normal dc object.
+ if (GDI_HANDLE_GET_TYPE(hDC) != GDI_OBJECT_TYPE_DC)
+ {
+    if (GDI_HANDLE_GET_TYPE(hDC) == GDI_OBJECT_TYPE_METADC)
+      return MFDRV_MetaParam8( hDC, META_CHORD, a1, a2, a3, a4, a5, a6, a7, a8)
+    else
+    { 
+      PDC_ATTR Dc_Attr;
+      PLDC pLDC;
+      GdiGetHandleUserData((HGDIOBJ) hDC, (PVOID) &Dc_Attr);
+      pLDC = Dc_Attr->pvLDC;
+      if ( !pLDC )
+      {
+         SetLastError(ERROR_INVALID_HANDLE)
+         return FALSE;
+      }
+      if (pLDC->iType == LDC_EMFLDC)
+      {
+        BOOL Ret = EMFDRV_ArcChordPie( hDC, a1, a2, a3, a4, a5, a6, a7, a8, EMR_CHORD);
+        return Ret;
+      }
+      return FALSE;
+    }
+ }
+ return NtGdiArcInternal(GdiTypeChord, hDC, a1, a2, a3, a4, a5, a6, a7, a8);
+}
+
+
+/*
+ * @unimplemented
+ */
+BOOL
+STDCALL
+NewPie(
+	HDC	hDC,
+	int	a1,
+	int	a2,
+	int	a3,
+	int	a4,
+	int	a5,
+	int	a6,
+	int	a7,
+	int	a8
+	)
+{
+// Handle something other than a normal dc object.
+ if (GDI_HANDLE_GET_TYPE(hDC) != GDI_OBJECT_TYPE_DC)
+ {
+    if (GDI_HANDLE_GET_TYPE(hDC) == GDI_OBJECT_TYPE_METADC)
+      return MFDRV_MetaParam8( hDC, META_PIE, a1, a2, a3, a4, a5, a6, a7, a8)
+    else
+    { 
+      PDC_ATTR Dc_Attr;
+      PLDC pLDC;
+      GdiGetHandleUserData((HGDIOBJ) hDC, (PVOID) &Dc_Attr);
+      pLDC = Dc_Attr->pvLDC;
+      if ( !pLDC )
+      {
+         SetLastError(ERROR_INVALID_HANDLE)
+         return FALSE;
+      }
+      if (pLDC->iType == LDC_EMFLDC)
+      {
+        BOOL Ret = EMFDRV_ArcChordPie( hDC, a1, a2, a3, a4, a5, a6, a7, a8, EMR_PIE);
+        return Ret;
+      }
+      return FALSE;
+    }
+ }
+ return NtGdiArcInternal(GdiTypePie, hDC, a1, a2, a3, a4, a5, a6, a7, a8);
+}
+
+

Propchange: trunk/reactos/dll/win32/gdi32/objects/painting.c
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