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Sweden-Number/dlls/oleaut32/olepicture.c

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/*
* OLE Picture object
*
* Implementation of OLE IPicture and related interfaces
*
* Copyright 2000 Huw D M Davies for CodeWeavers.
*
*
* BUGS
*
* Only implements PICTYPE_BITMAP.
* Most methods are just stubs.
* Doesn't even expose IPersistStream, IConnectionPointContainer.
*
*
* NOTES (or things that msdn doesn't tell you)
*
* The width and height properties are returned in HIMETRIC units (0.01mm)
* IPicture::Render also uses these to select a region of the src picture.
* A bitmap's size is converted into these units by using the screen resolution
* thus an 8x8 bitmap on a 96dpi screen has a size of 212x212 (8/96 * 2540).
*
*/
#include "winerror.h"
#include "olectl.h"
#include "wine/obj_picture.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(ole);
/*************************************************************************
* Declaration of implementation class
*/
typedef struct OLEPictureImpl {
/*
* IPicture handles IUnknown
*/
ICOM_VTABLE(IPicture) *lpvtbl1;
ICOM_VTABLE(IDispatch) *lpvtbl2;
ICOM_VTABLE(IPersistStream) *lpvtbl3;
/* Object referenece count */
DWORD ref;
/* We own the object and must destroy it ourselves */
BOOL fOwn;
/* Picture description */
PICTDESC desc;
/* These are the pixel size of a bitmap */
DWORD origWidth;
DWORD origHeight;
/* And these are the size of the picture converted into HIMETRIC units */
OLE_XSIZE_HIMETRIC himetricWidth;
OLE_YSIZE_HIMETRIC himetricHeight;
} OLEPictureImpl;
/*
* Macros to retrieve pointer to IUnknown (IPicture) from the other VTables.
*/
#define ICOM_THIS_From_IDispatch(impl, name) \
impl *This = (impl*)(((char*)name)-sizeof(void*));
#define ICOM_THIS_From_IPersistStream(impl, name) \
impl *This = (impl*)(((char*)name)-2*sizeof(void*));
/*
* Predeclare VTables. They get initialized at the end.
*/
static ICOM_VTABLE(IPicture) OLEPictureImpl_VTable;
static ICOM_VTABLE(IDispatch) OLEPictureImpl_IDispatch_VTable;
static ICOM_VTABLE(IPersistStream) OLEPictureImpl_IPersistStream_VTable;
/***********************************************************************
* Implementation of the OLEPictureImpl class.
*/
/************************************************************************
* OLEPictureImpl_Construct
*
* This method will construct a new instance of the OLEPictureImpl
* class.
*
* The caller of this method must release the object when it's
* done with it.
*/
static OLEPictureImpl* OLEPictureImpl_Construct(LPPICTDESC pictDesc, BOOL fOwn)
{
OLEPictureImpl* newObject = 0;
TRACE("(%p) type = %d\n", pictDesc, pictDesc->picType);
/*
* Allocate space for the object.
*/
newObject = HeapAlloc(GetProcessHeap(), 0, sizeof(OLEPictureImpl));
if (newObject==0)
return newObject;
/*
* Initialize the virtual function table.
*/
newObject->lpvtbl1 = &OLEPictureImpl_VTable;
newObject->lpvtbl2 = &OLEPictureImpl_IDispatch_VTable;
newObject->lpvtbl3 = &OLEPictureImpl_IPersistStream_VTable;
/*
* Start with one reference count. The caller of this function
* must release the interface pointer when it is done.
*/
newObject->ref = 1;
newObject->fOwn = fOwn;
if(pictDesc->cbSizeofstruct != sizeof(PICTDESC)) {
FIXME("struct size = %d\n", pictDesc->cbSizeofstruct);
}
memcpy(&newObject->desc, pictDesc, sizeof(PICTDESC));
switch(pictDesc->picType) {
case PICTYPE_BITMAP:
{
BITMAP bm;
HDC hdcRef;
TRACE("bitmap handle %08x\n", pictDesc->u.bmp.hbitmap);
if(GetObjectA(pictDesc->u.bmp.hbitmap, sizeof(bm), &bm) != sizeof(bm)) {
ERR("GetObject fails\n");
break;
}
newObject->origWidth = bm.bmWidth;
newObject->origHeight = bm.bmHeight;
/* The width and height are stored in HIMETRIC units (0.01 mm),
so we take our pixel width divide by pixels per inch and
multiply by 25.4 * 100 */
/* Should we use GetBitmapDimension if available? */
hdcRef = CreateCompatibleDC(0);
newObject->himetricWidth = (bm.bmWidth * 2540) /
GetDeviceCaps(hdcRef, LOGPIXELSX);
newObject->himetricHeight = (bm.bmHeight * 2540) /
GetDeviceCaps(hdcRef, LOGPIXELSY);
DeleteDC(hdcRef);
}
break;
case PICTYPE_METAFILE:
TRACE("metafile handle %08x\n", pictDesc->u.wmf.hmeta);
newObject->himetricWidth = pictDesc->u.wmf.xExt;
newObject->himetricHeight = pictDesc->u.wmf.yExt;
break;
case PICTYPE_ICON:
case PICTYPE_ENHMETAFILE:
default:
FIXME("Unsupported type %d\n", pictDesc->picType);
newObject->himetricWidth = newObject->himetricHeight = 0;
break;
}
TRACE("returning %p\n", newObject);
return newObject;
}
/************************************************************************
* OLEPictureImpl_Destroy
*
* This method is called by the Release method when the reference
* count goes down to 0. It will free all resources used by
* this object. */
static void OLEPictureImpl_Destroy(OLEPictureImpl* Obj)
{
TRACE("(%p)\n", Obj);
if(Obj->fOwn) { /* We need to destroy the picture */
switch(Obj->desc.picType) {
case PICTYPE_BITMAP:
DeleteObject(Obj->desc.u.bmp.hbitmap);
break;
case PICTYPE_METAFILE:
DeleteMetaFile(Obj->desc.u.wmf.hmeta);
break;
case PICTYPE_ICON:
DestroyIcon(Obj->desc.u.icon.hicon);
break;
case PICTYPE_ENHMETAFILE:
DeleteEnhMetaFile(Obj->desc.u.emf.hemf);
break;
default:
FIXME("Unsupported type %d - unable to delete\n", Obj->desc.picType);
break;
}
}
HeapFree(GetProcessHeap(), 0, Obj);
}
static ULONG WINAPI OLEPictureImpl_AddRef(IPicture* iface);
/************************************************************************
* OLEPictureImpl_QueryInterface (IUnknown)
*
* See Windows documentation for more details on IUnknown methods.
*/
static HRESULT WINAPI OLEPictureImpl_QueryInterface(
IPicture* iface,
REFIID riid,
void** ppvObject)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppvObject);
/*
* Perform a sanity check on the parameters.
*/
if ( (This==0) || (ppvObject==0) )
return E_INVALIDARG;
/*
* Initialize the return parameter.
*/
*ppvObject = 0;
/*
* Compare the riid with the interface IDs implemented by this object.
*/
if (memcmp(&IID_IUnknown, riid, sizeof(IID_IUnknown)) == 0)
{
*ppvObject = (IPicture*)This;
}
else if (memcmp(&IID_IPicture, riid, sizeof(IID_IPicture)) == 0)
{
*ppvObject = (IPicture*)This;
}
else if (memcmp(&IID_IDispatch, riid, sizeof(IID_IDispatch)) == 0)
{
*ppvObject = (IDispatch*)&(This->lpvtbl2);
}
else if (memcmp(&IID_IPictureDisp, riid, sizeof(IID_IPictureDisp)) == 0)
{
*ppvObject = (IDispatch*)&(This->lpvtbl2);
}
/* else if (memcmp(&IID_IPersistStream, riid, sizeof(IID_IPersistStream)) == 0)
{
*ppvObject = (IPersistStream*)&(This->lpvtbl3);
}*/
/*
* Check that we obtained an interface.
*/
if ((*ppvObject)==0)
{
FIXME("() : asking for un supported interface %s\n",debugstr_guid(riid));
return E_NOINTERFACE;
}
/*
* Query Interface always increases the reference count by one when it is
* successful
*/
OLEPictureImpl_AddRef((IPicture*)This);
return S_OK;;
}
/************************************************************************
* OLEPictureImpl_AddRef (IUnknown)
*
* See Windows documentation for more details on IUnknown methods.
*/
static ULONG WINAPI OLEPictureImpl_AddRef(
IPicture* iface)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(ref=%ld)\n", This, This->ref);
This->ref++;
return This->ref;
}
/************************************************************************
* OLEPictureImpl_Release (IUnknown)
*
* See Windows documentation for more details on IUnknown methods.
*/
static ULONG WINAPI OLEPictureImpl_Release(
IPicture* iface)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(ref=%ld)\n", This, This->ref);
/*
* Decrease the reference count on this object.
*/
This->ref--;
/*
* If the reference count goes down to 0, perform suicide.
*/
if (This->ref==0)
{
OLEPictureImpl_Destroy(This);
return 0;
}
return This->ref;
}
/************************************************************************
* OLEPictureImpl_get_Handle
*/
static HRESULT WINAPI OLEPictureImpl_get_Handle(IPicture *iface,
OLE_HANDLE *phandle)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(%p)\n", This, phandle);
switch(This->desc.picType) {
case PICTYPE_BITMAP:
*phandle = This->desc.u.bmp.hbitmap;
break;
case PICTYPE_METAFILE:
*phandle = This->desc.u.wmf.hmeta;
break;
case PICTYPE_ICON:
*phandle = This->desc.u.icon.hicon;
break;
case PICTYPE_ENHMETAFILE:
*phandle = This->desc.u.emf.hemf;
break;
default:
FIXME("Unimplemented type %d\n", This->desc.picType);
return E_NOTIMPL;
}
TRACE("returning handle %08x\n", *phandle);
return S_OK;
}
/************************************************************************
* OLEPictureImpl_get_hPal
*/
static HRESULT WINAPI OLEPictureImpl_get_hPal(IPicture *iface,
OLE_HANDLE *phandle)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%p): stub\n", This, phandle);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_get_Type
*/
static HRESULT WINAPI OLEPictureImpl_get_Type(IPicture *iface,
short *ptype)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(%p): type is %d\n", This, ptype, This->desc.picType);
*ptype = This->desc.picType;
return S_OK;
}
/************************************************************************
* OLEPictureImpl_get_Width
*/
static HRESULT WINAPI OLEPictureImpl_get_Width(IPicture *iface,
OLE_XSIZE_HIMETRIC *pwidth)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(%p): width is %ld\n", This, pwidth, This->himetricWidth);
*pwidth = This->himetricWidth;
return S_OK;
}
/************************************************************************
* OLEPictureImpl_get_Height
*/
static HRESULT WINAPI OLEPictureImpl_get_Height(IPicture *iface,
OLE_YSIZE_HIMETRIC *pheight)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(%p): height is %ld\n", This, pheight, This->himetricHeight);
*pheight = This->himetricHeight;
return S_OK;
}
/************************************************************************
* OLEPictureImpl_Render
*/
static HRESULT WINAPI OLEPictureImpl_Render(IPicture *iface, 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)
{
ICOM_THIS(OLEPictureImpl, iface);
TRACE("(%p)->(%08x, (%ld,%ld), (%ld,%ld) <- (%ld,%ld), (%ld,%ld), %p)\n",
This, hdc, x, y, cx, cy, xSrc, ySrc, cxSrc, cySrc, prcWBounds);
if(prcWBounds)
TRACE("prcWBounds (%d,%d) - (%d,%d)\n", prcWBounds->left, prcWBounds->top,
prcWBounds->right, prcWBounds->bottom);
switch(This->desc.picType) {
case PICTYPE_BITMAP:
{
HBITMAP hbmpOld;
HDC hdcBmp;
/* Set a mapping mode that maps bitmap pixels into HIMETRIC units.
NB y-axis gets flipped */
hdcBmp = CreateCompatibleDC(0);
SetMapMode(hdcBmp, MM_ANISOTROPIC);
SetWindowOrgEx(hdcBmp, 0, 0, NULL);
SetWindowExtEx(hdcBmp, This->himetricWidth, This->himetricHeight, NULL);
SetViewportOrgEx(hdcBmp, 0, This->origHeight, NULL);
SetViewportExtEx(hdcBmp, This->origWidth, -This->origHeight, NULL);
hbmpOld = SelectObject(hdcBmp, This->desc.u.bmp.hbitmap);
StretchBlt(hdc, x, y, cx, cy, hdcBmp, xSrc, ySrc, cxSrc, cySrc, SRCCOPY);
SelectObject(hdcBmp, hbmpOld);
DeleteDC(hdcBmp);
}
break;
case PICTYPE_METAFILE:
case PICTYPE_ICON:
case PICTYPE_ENHMETAFILE:
default:
FIXME("type %d not implemented\n", This->desc.picType);
return E_NOTIMPL;
}
return S_OK;
}
/************************************************************************
* OLEPictureImpl_set_hPal
*/
static HRESULT WINAPI OLEPictureImpl_set_hPal(IPicture *iface,
OLE_HANDLE hpal)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%08x): stub\n", This, hpal);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_get_CurDC
*/
static HRESULT WINAPI OLEPictureImpl_get_CurDC(IPicture *iface,
HDC *phdc)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%p): stub\n", This, phdc);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_SelectPicture
*/
static HRESULT WINAPI OLEPictureImpl_SelectPicture(IPicture *iface,
HDC hdcIn,
HDC *phdcOut,
OLE_HANDLE *phbmpOut)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%08x, %p, %p): stub\n", This, hdcIn, phdcOut, phbmpOut);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_get_KeepOriginalFormat
*/
static HRESULT WINAPI OLEPictureImpl_get_KeepOriginalFormat(IPicture *iface,
BOOL *pfKeep)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%p): stub\n", This, pfKeep);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_put_KeepOriginalFormat
*/
static HRESULT WINAPI OLEPictureImpl_put_KeepOriginalFormat(IPicture *iface,
BOOL keep)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%d): stub\n", This, keep);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_PictureChanged
*/
static HRESULT WINAPI OLEPictureImpl_PictureChanged(IPicture *iface)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(): stub\n", This);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_SaveAsFile
*/
static HRESULT WINAPI OLEPictureImpl_SaveAsFile(IPicture *iface,
IStream *pstream,
BOOL SaveMemCopy,
LONG *pcbSize)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%p, %d, %p): stub\n", This, pstream, SaveMemCopy, pcbSize);
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_get_Attributes
*/
static HRESULT WINAPI OLEPictureImpl_get_Attributes(IPicture *iface,
DWORD *pdwAttr)
{
ICOM_THIS(OLEPictureImpl, iface);
FIXME("(%p)->(%p): stub\n", This, pdwAttr);
return E_NOTIMPL;
}
/************************************************************************
* IDispatch
*/
/************************************************************************
* OLEPictureImpl_IDispatch_QueryInterface (IUnknown)
*
* See Windows documentation for more details on IUnknown methods.
*/
static HRESULT WINAPI OLEPictureImpl_IDispatch_QueryInterface(
IDispatch* iface,
REFIID riid,
VOID** ppvoid)
{
ICOM_THIS_From_IDispatch(IPicture, iface);
return IPicture_QueryInterface(This, riid, ppvoid);
}
/************************************************************************
* OLEPictureImpl_IDispatch_AddRef (IUnknown)
*
* See Windows documentation for more details on IUnknown methods.
*/
static ULONG WINAPI OLEPictureImpl_IDispatch_AddRef(
IDispatch* iface)
{
ICOM_THIS_From_IDispatch(IPicture, iface);
return IPicture_AddRef(This);
}
/************************************************************************
* OLEPictureImpl_IDispatch_Release (IUnknown)
*
* See Windows documentation for more details on IUnknown methods.
*/
static ULONG WINAPI OLEPictureImpl_IDispatch_Release(
IDispatch* iface)
{
ICOM_THIS_From_IDispatch(IPicture, iface);
return IPicture_Release(This);
}
/************************************************************************
* OLEPictureImpl_GetTypeInfoCount (IDispatch)
*
* See Windows documentation for more details on IDispatch methods.
*/
static HRESULT WINAPI OLEPictureImpl_GetTypeInfoCount(
IDispatch* iface,
unsigned int* pctinfo)
{
FIXME("():Stub\n");
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_GetTypeInfo (IDispatch)
*
* See Windows documentation for more details on IDispatch methods.
*/
static HRESULT WINAPI OLEPictureImpl_GetTypeInfo(
IDispatch* iface,
UINT iTInfo,
LCID lcid,
ITypeInfo** ppTInfo)
{
FIXME("():Stub\n");
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_GetIDsOfNames (IDispatch)
*
* See Windows documentation for more details on IDispatch methods.
*/
static HRESULT WINAPI OLEPictureImpl_GetIDsOfNames(
IDispatch* iface,
REFIID riid,
LPOLESTR* rgszNames,
UINT cNames,
LCID lcid,
DISPID* rgDispId)
{
FIXME("():Stub\n");
return E_NOTIMPL;
}
/************************************************************************
* OLEPictureImpl_Invoke (IDispatch)
*
* See Windows documentation for more details on IDispatch methods.
*/
static HRESULT WINAPI OLEPictureImpl_Invoke(
IDispatch* iface,
DISPID dispIdMember,
REFIID riid,
LCID lcid,
WORD wFlags,
DISPPARAMS* pDispParams,
VARIANT* pVarResult,
EXCEPINFO* pExepInfo,
UINT* puArgErr)
{
FIXME("():Stub\n");
return E_NOTIMPL;
}
static ICOM_VTABLE(IPicture) OLEPictureImpl_VTable =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
OLEPictureImpl_QueryInterface,
OLEPictureImpl_AddRef,
OLEPictureImpl_Release,
OLEPictureImpl_get_Handle,
OLEPictureImpl_get_hPal,
OLEPictureImpl_get_Type,
OLEPictureImpl_get_Width,
OLEPictureImpl_get_Height,
OLEPictureImpl_Render,
OLEPictureImpl_set_hPal,
OLEPictureImpl_get_CurDC,
OLEPictureImpl_SelectPicture,
OLEPictureImpl_get_KeepOriginalFormat,
OLEPictureImpl_put_KeepOriginalFormat,
OLEPictureImpl_PictureChanged,
OLEPictureImpl_SaveAsFile,
OLEPictureImpl_get_Attributes
};
static ICOM_VTABLE(IDispatch) OLEPictureImpl_IDispatch_VTable =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
OLEPictureImpl_IDispatch_QueryInterface,
OLEPictureImpl_IDispatch_AddRef,
OLEPictureImpl_IDispatch_Release,
OLEPictureImpl_GetTypeInfoCount,
OLEPictureImpl_GetTypeInfo,
OLEPictureImpl_GetIDsOfNames,
OLEPictureImpl_Invoke
};
/***********************************************************************
* OleCreatePictureIndirect
*/
HRESULT WINAPI OleCreatePictureIndirect(LPPICTDESC lpPictDesc, REFIID riid,
BOOL fOwn, LPVOID *ppvObj )
{
OLEPictureImpl* newPict = NULL;
HRESULT hr = S_OK;
TRACE("(%p,%p,%d,%p)\n", lpPictDesc, riid, fOwn, ppvObj);
/*
* Sanity check
*/
if (ppvObj==0)
return E_POINTER;
*ppvObj = NULL;
/*
* Try to construct a new instance of the class.
*/
newPict = OLEPictureImpl_Construct(lpPictDesc, fOwn);
if (newPict == NULL)
return E_OUTOFMEMORY;
/*
* Make sure it supports the interface required by the caller.
*/
hr = IPicture_QueryInterface((IPicture*)newPict, riid, ppvObj);
/*
* Release the reference obtained in the constructor. If
* the QueryInterface was unsuccessful, it will free the class.
*/
IPicture_Release((IPicture*)newPict);
return hr;
}
/***********************************************************************
* OleLoadPicture
*/
HRESULT WINAPI OleLoadPicture( LPSTREAM lpstream, LONG lSize, BOOL fRunmode,
REFIID reed, LPVOID *ppvObj )
{
FIXME("(%p,%ld,%d,%p,%p), not implemented\n",
lpstream, lSize, fRunmode, reed, ppvObj);
return S_OK;
}
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