wine/objects/enhmetafile.c
1999-02-26 11:11:13 +00:00

619 lines
16 KiB
C

/*
Enhanced metafile functions
Copyright 1998, Douglas Ridgway
*/
#include <string.h>
#include <assert.h>
#include "winbase.h"
#include "wine/winestring.h"
#include "gdi.h"
#include "winnt.h"
#include "debug.h"
#include "winerror.h"
/*****************************************************************************
* GetEnhMetaFile32A (GDI32.174)
*
*
*/
HENHMETAFILE WINAPI GetEnhMetaFileA(
LPCSTR lpszMetaFile /* filename of enhanced metafile */
)
{
HENHMETAFILE hmf = 0;
ENHMETAHEADER h;
BYTE *p;
DWORD read;
HFILE hf = CreateFileA(lpszMetaFile, GENERIC_READ, 0, 0,
OPEN_EXISTING, 0, 0);
if (hf == INVALID_HANDLE_VALUE) {
FIXME(metafile,"could not open %s\n",lpszMetaFile);
return 0;
}
if (!ReadFile(hf, &h, sizeof(ENHMETAHEADER), &read, NULL)) {
FIXME(metafile,"%s can't be read.\n",lpszMetaFile);
CloseHandle(hf);
return 0;
}
if (read!=sizeof(ENHMETAHEADER)) {
FIXME(metafile,"%s is not long enough.\n",lpszMetaFile);
CloseHandle(hf);
return 0;
}
if (h.iType!=1) {
FIXME(metafile,"%s has invalid emf header (type 0x%08lx).\n",lpszMetaFile,h.iType);
CloseHandle(hf);
return 0;
}
if (memcmp(&(h.dSignature)," EMF",4)) {
FIXME(metafile,"%s has invalid EMF header (dSignature 0x%08lx).\n",lpszMetaFile,h.dSignature);
CloseHandle(hf);
return 0;
}
SetFilePointer(hf, 0, NULL, FILE_BEGIN);
/* hmf = CreateFileMapping32A( hf, NULL, NULL, NULL, NULL, "temp"); */
hmf = GlobalAlloc(GPTR, h.nBytes);
p = GlobalLock(hmf);
if (!ReadFile(hf, p, h.nBytes, &read, NULL)) {
FIXME(metafile,"%s could not be read.\n",lpszMetaFile);
GlobalFree(hmf);
CloseHandle(hf);
return 0;
}
if (read!=h.nBytes) {
FIXME(metafile,"%s is not long enough (%ld expected, %ld got).\n",lpszMetaFile,h.nBytes,read);
GlobalFree(hmf);
CloseHandle(hf);
return 0;
}
GlobalUnlock(hmf);
return hmf;
}
/*****************************************************************************
* GetEnhMetaFile32W (GDI32.180)
*/
HENHMETAFILE WINAPI GetEnhMetaFileW(
LPCWSTR lpszMetaFile) /* filename of enhanced metafile */
{
FIXME(metafile, "(%p): stub\n", lpszMetaFile);
return 0;
}
/*****************************************************************************
* GetEnhMetaFileHeader (GDI32.178)
*
* If _buf_ is NULL, returns the size of buffer required.
* Otherwise, copy up to _bufsize_ bytes of enhanced metafile header into
* _buf.
*/
UINT WINAPI GetEnhMetaFileHeader(
HENHMETAFILE hmf, /* enhanced metafile */
UINT bufsize, /* size of buffer */
LPENHMETAHEADER buf /* buffer */
)
{
LPENHMETAHEADER p = GlobalLock(hmf);
if (!buf) return sizeof(ENHMETAHEADER);
memmove(buf, p, MIN(sizeof(ENHMETAHEADER), bufsize));
GlobalUnlock(hmf);
return MIN(sizeof(ENHMETAHEADER), bufsize);
}
/*****************************************************************************
* GetEnhMetaFileDescription32A (GDI32.176)
*/
UINT WINAPI GetEnhMetaFileDescriptionA(
HENHMETAFILE hmf, /* enhanced metafile */
UINT size, /* size of buf */
LPSTR buf /* buffer to receive description */
)
{
LPENHMETAHEADER p = GlobalLock(hmf);
INT first = lstrlenW( (void *)p+p->offDescription);
if (!buf || !size) return p->nDescription;
lstrcpynWtoA(buf, (void *)p+p->offDescription, size);
buf += first +1;
lstrcpynWtoA(buf, (void *)p+p->offDescription+2*(first+1), size-first-1);
/* memmove(buf, (void *)p+p->offDescription, MIN(size,p->nDescription)); */
GlobalUnlock(hmf);
return MIN(size,p->nDescription);
}
/*****************************************************************************
* GetEnhMetaFileDescription32W (GDI32.177)
*
* Copies the description string of an enhanced metafile into a buffer
* _buf_.
*
* If _buf_ is NULL, returns size of _buf_ required. Otherwise, returns
* number of characters copied.
*/
UINT WINAPI GetEnhMetaFileDescriptionW(
HENHMETAFILE hmf, /* enhanced metafile */
UINT size, /* size of buf */
LPWSTR buf /* buffer to receive description */
)
{
LPENHMETAHEADER p = GlobalLock(hmf);
if (!buf || !size) return p->nDescription;
memmove(buf, (void *)p+p->offDescription, MIN(size,p->nDescription));
GlobalUnlock(hmf);
return MIN(size,p->nDescription);
}
/****************************************************************************
* SetEnhMetaFileBits (GDI32.315)
*
* Creates an enhanced metafile by copying _bufsize_ bytes from _buf_.
*/
HENHMETAFILE WINAPI SetEnhMetaFileBits(UINT bufsize, const BYTE *buf)
{
HENHMETAFILE hmf = GlobalAlloc(GPTR, bufsize);
LPENHMETAHEADER h = GlobalLock(hmf);
memmove(h, buf, bufsize);
GlobalUnlock(hmf);
return hmf;
}
/*****************************************************************************
* GetEnhMetaFileBits (GDI32.175)
*
*/
UINT WINAPI GetEnhMetaFileBits(
HENHMETAFILE hmf,
UINT bufsize,
LPBYTE buf
) {
return 0;
}
/*****************************************************************************
* PlayEnhMetaFileRecord (GDI32.264)
*
* Render a single enhanced metafile record in the device context hdc.
*
* RETURNS
* TRUE on success, FALSE on error.
* BUGS
* Many unimplemented records.
*/
BOOL WINAPI PlayEnhMetaFileRecord(
HDC hdc, /* device context in which to render EMF record */
LPHANDLETABLE handletable, /* array of handles to be used in rendering record */
const ENHMETARECORD *mr, /* EMF record to render */
UINT handles /* size of handle array */
)
{
int type;
TRACE(metafile,
"hdc = %08x, handletable = %p, record = %p, numHandles = %d\n",
hdc, handletable, mr, handles);
if (!mr) return FALSE;
type = mr->iType;
TRACE(metafile, " type=%d\n", type);
switch(type)
{
case EMR_HEADER:
{
/* ENHMETAHEADER *h = (LPENHMETAHEADER) mr; */
break;
}
case EMR_EOF:
break;
case EMR_GDICOMMENT:
/* application defined and processed */
break;
case EMR_SETMAPMODE:
{
DWORD mode = mr->dParm[0];
SetMapMode(hdc, mode);
break;
}
case EMR_SETBKMODE:
{
DWORD mode = mr->dParm[0];
SetBkMode(hdc, mode);
break;
}
case EMR_SETBKCOLOR:
{
DWORD mode = mr->dParm[0];
SetBkColor(hdc, mode);
break;
}
case EMR_SETPOLYFILLMODE:
{
DWORD mode = mr->dParm[0];
SetPolyFillMode(hdc, mode);
break;
}
case EMR_SETROP2:
{
DWORD mode = mr->dParm[0];
SetROP2(hdc, mode);
break;
}
case EMR_SETSTRETCHBLTMODE:
{
DWORD mode = mr->dParm[0];
SetStretchBltMode(hdc, mode);
break;
}
case EMR_SETTEXTALIGN:
{
DWORD align = mr->dParm[0];
SetTextAlign(hdc, align);
break;
}
case EMR_SETTEXTCOLOR:
{
DWORD color = mr->dParm[0];
SetTextColor(hdc, color);
break;
}
case EMR_SAVEDC:
{
SaveDC(hdc);
break;
}
case EMR_RESTOREDC:
{
RestoreDC(hdc, mr->dParm[0]);
break;
}
case EMR_INTERSECTCLIPRECT:
{
INT left = mr->dParm[0], top = mr->dParm[1], right = mr->dParm[2],
bottom = mr->dParm[3];
IntersectClipRect(hdc, left, top, right, bottom);
break;
}
case EMR_SELECTOBJECT:
{
DWORD obj = mr->dParm[0];
SelectObject(hdc, (handletable->objectHandle)[obj]);
break;
}
case EMR_DELETEOBJECT:
{
DWORD obj = mr->dParm[0];
DeleteObject( (handletable->objectHandle)[obj]);
(handletable->objectHandle)[obj] = 0;
break;
}
case EMR_SETWINDOWORGEX:
{
DWORD x = mr->dParm[0], y = mr->dParm[1];
SetWindowOrgEx(hdc, x, y, NULL);
break;
}
case EMR_SETWINDOWEXTEX:
{
DWORD x = mr->dParm[0], y = mr->dParm[1];
SetWindowExtEx(hdc, x, y, NULL);
break;
}
case EMR_SETVIEWPORTORGEX:
{
DWORD x = mr->dParm[0], y = mr->dParm[1];
SetViewportOrgEx(hdc, x, y, NULL);
break;
}
case EMR_SETVIEWPORTEXTEX:
{
DWORD x = mr->dParm[0], y = mr->dParm[1];
SetViewportExtEx(hdc, x, y, NULL);
break;
}
case EMR_CREATEPEN:
{
DWORD obj = mr->dParm[0];
(handletable->objectHandle)[obj] =
CreatePenIndirect((LOGPEN *) &(mr->dParm[1]));
break;
}
case EMR_EXTCREATEPEN:
{
DWORD obj = mr->dParm[0];
DWORD style = mr->dParm[1], brush = mr->dParm[2];
LOGBRUSH *b = (LOGBRUSH *) &mr->dParm[3];
FIXME(metafile, "Some ExtCreatePen args not handled\n");
(handletable->objectHandle)[obj] =
ExtCreatePen(style, brush, b, 0, NULL);
break;
}
case EMR_CREATEBRUSHINDIRECT:
{
DWORD obj = mr->dParm[0];
(handletable->objectHandle)[obj] =
CreateBrushIndirect((LOGBRUSH *) &(mr->dParm[1]));
break;
}
case EMR_EXTCREATEFONTINDIRECTW:
{
DWORD obj = mr->dParm[0];
(handletable->objectHandle)[obj] =
CreateFontIndirectW((LOGFONTW *) &(mr->dParm[1]));
break;
}
case EMR_MOVETOEX:
{
DWORD x = mr->dParm[0], y = mr->dParm[1];
MoveToEx(hdc, x, y, NULL);
break;
}
case EMR_LINETO:
{
DWORD x = mr->dParm[0], y = mr->dParm[1];
LineTo(hdc, x, y);
break;
}
case EMR_RECTANGLE:
{
INT left = mr->dParm[0], top = mr->dParm[1], right = mr->dParm[2],
bottom = mr->dParm[3];
Rectangle(hdc, left, top, right, bottom);
break;
}
case EMR_ELLIPSE:
{
INT left = mr->dParm[0], top = mr->dParm[1], right = mr->dParm[2],
bottom = mr->dParm[3];
Ellipse(hdc, left, top, right, bottom);
break;
}
case EMR_POLYGON16:
{
/* 0-3 : a bounding rectangle? */
INT count = mr->dParm[4];
FIXME(metafile, "Some Polygon16 args not handled\n");
Polygon16(hdc, (POINT16 *)&mr->dParm[5], count);
break;
}
case EMR_POLYLINE16:
{
/* 0-3 : a bounding rectangle? */
INT count = mr->dParm[4];
FIXME(metafile, "Some Polyline16 args not handled\n");
Polyline16(hdc, (POINT16 *)&mr->dParm[5], count);
break;
}
#if 0
case EMR_POLYPOLYGON16:
{
INT polygons = mr->dParm[z];
LPPOINT16 pts = (LPPOINT16) &mr->dParm[x];
LPINT16 counts = (LPINT16) &mr->dParm[y];
PolyPolygon16(hdc, pts, counts, polygons);
break;
}
#endif
case EMR_STRETCHDIBITS:
{
LONG xDest = mr->dParm[4];
LONG yDest = mr->dParm[5];
LONG xSrc = mr->dParm[6];
LONG ySrc = mr->dParm[7];
LONG cxSrc = mr->dParm[8];
LONG cySrc = mr->dParm[9];
DWORD offBmiSrc = mr->dParm[10];
DWORD offBitsSrc = mr->dParm[12];
DWORD iUsageSrc = mr->dParm[14];
DWORD dwRop = mr->dParm[15];
LONG cxDest = mr->dParm[16];
LONG cyDest = mr->dParm[17];
StretchDIBits(hdc,xDest,yDest,cxDest,cyDest,
xSrc,ySrc,cxSrc,cySrc,
((char *)mr)+offBitsSrc,
(const BITMAPINFO *)(((char *)mr)+offBmiSrc),
iUsageSrc,dwRop);
break;
}
case EMR_EXTTEXTOUTW:
{
/* 0-3: ??? */
DWORD flags = mr->dParm[4];
/* 5, 6: ??? */
DWORD x = mr->dParm[7], y = mr->dParm[8];
DWORD count = mr->dParm[9];
/* 10-16: ??? */
LPWSTR str = (LPWSTR)& mr->dParm[17];
/* trailing info: dx array? */
FIXME(metafile, "Many ExtTextOut args not handled\n");
ExtTextOutW(hdc, x, y, flags, /* lpRect */ NULL,
str, count, /* lpDx */ NULL);
break;
}
default:
FIXME(metafile, "type %d is unimplemented\n", type);
/* SetLastError(E_NOTIMPL); */
break;
}
return TRUE;
}
/*****************************************************************************
*
* EnumEnhMetaFile32 (GDI32.79)
*
* Walk an enhanced metafile, calling a user-specified function _EnhMetaFunc_
* for each
* record. Returns when either every record has been used or
* when _EnhMetaFunc_ returns FALSE.
*
*
* RETURNS
* TRUE if every record is used, FALSE if any invocation of _EnhMetaFunc_
* returns FALSE.
*
* BUGS
* Ignores rect.
*/
BOOL WINAPI EnumEnhMetaFile(
HDC hdc, /* device context to pass to _EnhMetaFunc_ */
HENHMETAFILE hmf, /* EMF to walk */
ENHMFENUMPROC callback, /* callback function */
LPVOID data, /* optional data for callback function */
const RECT *rect /* bounding rectangle for rendered metafile */
)
{
BOOL ret = TRUE;
LPENHMETARECORD p = GlobalLock(hmf);
INT count = ((LPENHMETAHEADER) p)->nHandles;
HANDLETABLE *ht = (HANDLETABLE *)GlobalAlloc(GPTR, sizeof(HANDLETABLE)*count);
ht->objectHandle[0] = hmf;
while (ret) {
ret = (*callback)(hdc, ht, p, count, data);
if (p->iType == EMR_EOF) break;
p = (void *) p + p->nSize;
}
GlobalFree((HGLOBAL)ht);
GlobalUnlock(hmf);
return ret;
}
/**************************************************************************
* PlayEnhMetaFile (GDI32.263)
*
* Renders an enhanced metafile into a specified rectangle *lpRect
* in device context hdc.
*
* BUGS
* Almost entirely unimplemented
*
*/
BOOL WINAPI PlayEnhMetaFile(
HDC hdc, /* DC to render into */
HENHMETAFILE hmf, /* metafile to render */
const RECT *lpRect /* rectangle to place metafile inside */
)
{
LPENHMETARECORD p = GlobalLock(hmf);
INT count = ((LPENHMETAHEADER) p)->nHandles;
HANDLETABLE *ht = (HANDLETABLE *)GlobalAlloc(GPTR,
sizeof(HANDLETABLE)*count);
BOOL ret = FALSE;
INT savedMode = 0;
if (lpRect) {
LPENHMETAHEADER h = (LPENHMETAHEADER) p;
FLOAT xscale = (h->rclBounds.right-h->rclBounds.left)/(lpRect->right-lpRect->left);
FLOAT yscale = (h->rclBounds.bottom-h->rclBounds.top)/(lpRect->bottom-lpRect->top);
XFORM xform = {xscale, 0, 0, yscale, 0, 0};
xform.eDx = lpRect->left;
xform.eDy = lpRect->top;
FIXME(metafile, "play into rect doesn't work\n");
savedMode = SetGraphicsMode(hdc, GM_ADVANCED);
if (!SetWorldTransform(hdc, &xform)) {
WARN(metafile, "World transform failed!\n");
}
}
ht->objectHandle[0] = hmf;
while (1) {
PlayEnhMetaFileRecord(hdc, ht, p, count);
if (p->iType == EMR_EOF) break;
p = (void *) p + p->nSize; /* casted so that arithmetic is in bytes */
}
GlobalUnlock(hmf);
if (savedMode) SetGraphicsMode(hdc, savedMode);
ret = TRUE; /* FIXME: calculate a more accurate return value */
return ret;
}
/*****************************************************************************
* DeleteEnhMetaFile (GDI32.68)
*
* Deletes an enhanced metafile and frees the associated storage.
*/
BOOL WINAPI DeleteEnhMetaFile(HENHMETAFILE hmf) {
return !GlobalFree(hmf);
}
/*****************************************************************************
* CopyEnhMetaFileA (GDI32.21) Duplicate an enhanced metafile
*
*
*/
HENHMETAFILE WINAPI CopyEnhMetaFileA(
HENHMETAFILE hmf,
LPCSTR file)
{
if (!file) {
LPENHMETAHEADER h = GlobalLock(hmf);
HENHMETAFILE hmf2 = GlobalAlloc(GPTR, h->nBytes);
LPENHMETAHEADER h2 = GlobalLock(hmf2);
if (!h2) return 0;
memmove(h2, h, h->nBytes);
GlobalUnlock(hmf2);
GlobalUnlock(hmf);
return hmf2;
} else {
FIXME(metafile, "write to file not implemented\n");
return 0;
}
}
/*****************************************************************************
* GetEnhMetaFilePaletteEntries (GDI32.179)
*
* Copy the palette and report size
*/
UINT WINAPI GetEnhMetaFilePaletteEntries(HENHMETAFILE hemf,
UINT cEntries,
LPPALETTEENTRY lppe)
{
LPENHMETAHEADER h = GlobalLock(hemf);
if ( h == NULL ){
GlobalUnlock(hemf);
return(0);
} else {
if ((lppe)&&(cEntries>0)){
FIXME(metafile,"Stub\n");
GlobalUnlock(hemf);
return(GDI_ERROR);
} else{
GlobalUnlock(hemf);
return(0);
}
}
}
/******************************************************************
* SetWinMetaFileBits (GDI32.343)
*
* Translate from old style to new style.
*/
HENHMETAFILE WINAPI SetWinMetaFileBits(UINT cbBuffer,
CONST BYTE *lpbBuffer,
HDC hdcRef,
CONST METAFILEPICT *lpmfp
)
{
FIXME(metafile,"Stub\n");
return 0;
}