Changeset 1743 for trunk/src/oleaut32/iPicture.h

Timestamp:

Nov 14, 1999, 10:07:18 PM (26 years ago)

Author:

davidr

Message:

Tidy up IPicture implentation - now handles fOwn.

File:

• trunk/src/oleaut32/iPicture.h (modified) (3 diffs)

trunk/src/oleaut32/iPicture.h

@@ -1 @@
-/* $Id: iPicture.h,v 1.1 1999-11-14 01:26:36 davidr Exp $ */
+/* $Id: iPicture.h,v 1.2 1999-11-14 21:04:43 davidr Exp $ */
 /* 
  * OLE Picture functions private header
@@ -14 +14 @@
 #define IPICTURE_INCLUDED
 
-#define PICTYPE_UNINITIALIZED (-1)
-#define PICTYPE_NONE            0
-#define PICTYPE_BITMAP          1
-#define PICTYPE_METAFILE        2
-#define PICTYPE_ICON            3
-#define PICTYPE_ENHMETAFILE     4
-
-typedef struct tagPICTDESC
-{
-    UINT cbSizeofstruct;
-    UINT picType;
+class IPictureStrat;    // Forward defn.
+
+typedef struct IPictureImpl {
+
+    // IUnknown, IPicture
+    ICOM_VTABLE(IPicture) *             lpvtbl1;
+
+    // IDispatch, IPictureDisp
+    ICOM_VTABLE(IDispatch) *            lpvtbl2;
+
+    // IPersistStream
+    ICOM_VTABLE(IPersistStream) *       lpvtbl3;
+
+    ULONG               ref;            // Reference counter...
+
+    IPictureStrat *     pStrat;         // Current object strategy.
+
     union
     {
@@ -51 +57 @@
     } u;
 
-} PICTDESC, * LPPICTDESC;
+    BOOL                fKeepOriginalFormat;
+    BOOL                fOwn;
+    HDC                 hCurDC;
+    DWORD               lAttrib;
+
+} IPictureImpl;
+
+class IPictureStrat
+{
+public:
+    virtual HRESULT get_Handle(OLE_HANDLE * pHandle) = 0;
+    virtual HRESULT get_hPal(OLE_HANDLE * phPal) = 0;
+    virtual HRESULT get_Type(SHORT * pType) = 0;
+    virtual HRESULT get_Width(OLE_XSIZE_HIMETRIC * pWidth) = 0;
+    virtual HRESULT get_Height(OLE_YSIZE_HIMETRIC * pHeight) = 0;
+    virtual HRESULT Render(HDC hdc, LONG x, LONG y, LONG cx, LONG cy,
+                                    OLE_XPOS_HIMETRIC xSrc, OLE_YPOS_HIMETRIC ySrc,
+                                    OLE_XSIZE_HIMETRIC cxSrc, OLE_YSIZE_HIMETRIC cySrc,
+                                    LPCRECT pRcWBounds) = 0;
+    virtual HRESULT set_hPal(OLE_HANDLE hPal) = 0;
+    virtual HRESULT SaveAsFile(LPSTREAM pStream, BOOL fSaveMemCopy, LONG * pCbSize) = 0;
+    virtual HRESULT get_Attributes(DWORD * pDwAttr) = 0;
+
+    virtual ~IPictureStrat() {};
+
+protected:
+    IPictureStrat(IPictureImpl * a_pPicture) {pPicture = a_pPicture; }
+
+    IPictureImpl *      pPicture;
+
+private:
+
+};
+
+// ======================================================================
+// Uninitialised Picture
+// ======================================================================
+
+class IPictureNone : public IPictureStrat
+{
+public:
+    IPictureNone(IPictureImpl * a_pPicture) : IPictureStrat(a_pPicture) {}
+    HRESULT get_Handle(OLE_HANDLE * pHandle);
+    HRESULT get_hPal(OLE_HANDLE * phPal);
+    HRESULT get_Type(SHORT * pType);
+    HRESULT get_Width(OLE_XSIZE_HIMETRIC * pWidth);
+    HRESULT get_Height(OLE_YSIZE_HIMETRIC * pHeight);
+    HRESULT Render(HDC hdc, LONG x, LONG y, LONG cx, LONG cy,
+                                    OLE_XPOS_HIMETRIC xSrc, OLE_YPOS_HIMETRIC ySrc,
+                                    OLE_XSIZE_HIMETRIC cxSrc, OLE_YSIZE_HIMETRIC cySrc,
+                                    LPCRECT pRcWBounds);
+    HRESULT set_hPal(OLE_HANDLE hPal);
+    HRESULT SaveAsFile(LPSTREAM pStream, BOOL fSaveMemCopy, LONG * pCbSize);
+    HRESULT get_Attributes(DWORD * pDwAttr);
+
+protected:
+
+private:
+
+};
+
+
+// ======================================================================
+// Bitmap Picture
+// ======================================================================
+
+class IPictureBmp : public IPictureStrat
+{
+public:
+    IPictureBmp(IPictureImpl * a_pPicture, HBITMAP hBitmap, HPALETTE hpal);
+    ~IPictureBmp();
+    HRESULT get_Handle(OLE_HANDLE * pHandle);
+    HRESULT get_hPal(OLE_HANDLE * phPal);
+    HRESULT get_Type(SHORT * pType);
+    HRESULT get_Width(OLE_XSIZE_HIMETRIC * pWidth);
+    HRESULT get_Height(OLE_YSIZE_HIMETRIC * pHeight);
+    HRESULT Render(HDC hdc, LONG x, LONG y, LONG cx, LONG cy,
+                                    OLE_XPOS_HIMETRIC xSrc, OLE_YPOS_HIMETRIC ySrc,
+                                    OLE_XSIZE_HIMETRIC cxSrc, OLE_YSIZE_HIMETRIC cySrc,
+                                    LPCRECT pRcWBounds);
+    HRESULT set_hPal(OLE_HANDLE hPal);
+    HRESULT SaveAsFile(LPSTREAM pStream, BOOL fSaveMemCopy, LONG * pCbSize);
+    HRESULT get_Attributes(DWORD * pDwAttr);
+
+protected:
+
+private:
+
+};
+
+
+// ======================================================================
+// Icon Picture
+// ======================================================================
+
+class IPictureIcon : public IPictureStrat
+{
+public:
+    IPictureIcon(IPictureImpl * a_pPicture, HICON hicon);
+    ~IPictureIcon();
+    HRESULT get_Handle(OLE_HANDLE * pHandle);
+    HRESULT get_hPal(OLE_HANDLE * phPal);
+    HRESULT get_Type(SHORT * pType);
+    HRESULT get_Width(OLE_XSIZE_HIMETRIC * pWidth);
+    HRESULT get_Height(OLE_YSIZE_HIMETRIC * pHeight);
+    HRESULT Render(HDC hdc, LONG x, LONG y, LONG cx, LONG cy,
+                                    OLE_XPOS_HIMETRIC xSrc, OLE_YPOS_HIMETRIC ySrc,
+                                    OLE_XSIZE_HIMETRIC cxSrc, OLE_YSIZE_HIMETRIC cySrc,
+                                    LPCRECT pRcWBounds);
+    HRESULT set_hPal(OLE_HANDLE hPal);
+    HRESULT get_CurDC(HDC * phDC);
+    HRESULT put_KeepOriginalFormat(BOOL Keep);
+    HRESULT SaveAsFile(LPSTREAM pStream, BOOL fSaveMemCopy, LONG * pCbSize);
+    HRESULT get_Attributes(DWORD * pDwAttr);
+
+protected:
+
+private:
+
+};
+
+// ======================================================================
+// Metafile Picture
+// ======================================================================
+
+class IPictureMeta : public IPictureStrat
+{
+public:
+    IPictureMeta(IPictureImpl * a_pPicture, HMETAFILE hmeta, int xExt, int yExt);
+    ~IPictureMeta();
+    HRESULT get_Handle(OLE_HANDLE * pHandle);
+    HRESULT get_hPal(OLE_HANDLE * phPal);
+    HRESULT get_Type(SHORT * pType);
+    HRESULT get_Width(OLE_XSIZE_HIMETRIC * pWidth);
+    HRESULT get_Height(OLE_YSIZE_HIMETRIC * pHeight);
+    HRESULT Render(HDC hdc, LONG x, LONG y, LONG cx, LONG cy,
+                                    OLE_XPOS_HIMETRIC xSrc, OLE_YPOS_HIMETRIC ySrc,
+                                    OLE_XSIZE_HIMETRIC cxSrc, OLE_YSIZE_HIMETRIC cySrc,
+                                    LPCRECT pRcWBounds);
+    HRESULT set_hPal(OLE_HANDLE hPal);
+    HRESULT SaveAsFile(LPSTREAM pStream, BOOL fSaveMemCopy, LONG * pCbSize);
+    HRESULT get_Attributes(DWORD * pDwAttr);
+
+protected:
+
+private:
+
+};
+
+// ======================================================================
+// Enhanced Metafile Picture
+// ======================================================================
+
+class IPictureEmf : public IPictureStrat
+{
+public:
+    IPictureEmf(IPictureImpl * a_pPicture, HENHMETAFILE hemf);
+    ~IPictureEmf();
+    HRESULT get_Handle(OLE_HANDLE * pHandle);
+    HRESULT get_hPal(OLE_HANDLE * phPal);
+    HRESULT get_Type(SHORT * pType);
+    HRESULT get_Width(OLE_XSIZE_HIMETRIC * pWidth);
+    HRESULT get_Height(OLE_YSIZE_HIMETRIC * pHeight);
+    HRESULT Render(HDC hdc, LONG x, LONG y, LONG cx, LONG cy,
+                                    OLE_XPOS_HIMETRIC xSrc, OLE_YPOS_HIMETRIC ySrc,
+                                    OLE_XSIZE_HIMETRIC cxSrc, OLE_YSIZE_HIMETRIC cySrc,
+                                    LPCRECT pRcWBounds);
+    HRESULT set_hPal(OLE_HANDLE hPal);
+    HRESULT SaveAsFile(LPSTREAM pStream, BOOL fSaveMemCopy, LONG * pCbSize);
+    HRESULT get_Attributes(DWORD * pDwAttr);
+
+protected:
+
+private:
+
+};
+
+IPictureEmf::IPictureEmf(IPictureImpl * a_pPicture, HENHMETAFILE hemf)
+    : IPictureStrat(a_pPicture)
+{
+    pPicture->u.emf.hemf = hemf;
+}
+
+IPictureEmf::~IPictureEmf()
+{
+    if (pPicture->fOwn)
+    {
+        // Free metafile...
+        DeleteEnhMetaFile(pPicture->u.emf.hemf);
+    }
+}
+
+HRESULT IPictureEmf::get_Handle(OLE_HANDLE * pHandle)
+{
+    *pHandle = pPicture->u.emf.hemf;
+    return S_OK;
+}
+
+HRESULT IPictureEmf::get_hPal(OLE_HANDLE * phPal)
+{
+    *phPal = 0;
+    return S_OK;
+}
+
+HRESULT IPictureEmf::get_Type(SHORT * pType)
+{
+    *pType = PICTYPE_ENHMETAFILE;
+    return S_OK;
+}
+
+HRESULT IPictureEmf::get_Width(OLE_XSIZE_HIMETRIC * pWidth)
+{
+    *pWidth = 0;
+    return E_FAIL;
+}
+
+HRESULT IPictureEmf::get_Height(OLE_YSIZE_HIMETRIC * pHeight)
+{
+    *pHeight = 0;
+    return E_FAIL;
+}
+
+HRESULT IPictureEmf::Render(HDC hdc, LONG x, LONG y, LONG cx, LONG cy,
+                                OLE_XPOS_HIMETRIC xSrc, OLE_YPOS_HIMETRIC ySrc,
+                                OLE_XSIZE_HIMETRIC cxSrc, OLE_YSIZE_HIMETRIC cySrc,
+                                LPCRECT pRcWBounds)
+{
+    return E_FAIL;
+}
+
+HRESULT IPictureEmf::set_hPal(OLE_HANDLE hPal)
+{
+    return E_FAIL;
+}
+
+HRESULT IPictureEmf::SaveAsFile(LPSTREAM pStream, BOOL fSaveMemCopy, LONG * pCbSize)
+{
+    return E_FAIL;
+}
+
+HRESULT IPictureEmf::get_Attributes(DWORD * pDwAttr)
+{
+    *pDwAttr = PICTURE_SCALEABLE | PICTURE_TRANSPARENT;
+    return S_OK;
+}
+
+// Access macros
+#define _ICOM_THIS(class, name) class* This = (class*)name;
+#define _ICOM_THIS_From_IDispatch(class, name) class * This = (class*)(((char*)name)-sizeof(void*));
+#define _ICOM_THIS_From_IPersistStream(class, name) class * This = (class*)(((char*)name)-2*sizeof(void*));
 
 #endif /* IPICTURE_INCLUDED */