Sweden-Number/dlls/gdiplus/metafile.c

411 lines
11 KiB
C

/*
* Copyright (C) 2011 Vincent Povirk for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <math.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "wine/unicode.h"
#define COBJMACROS
#include "objbase.h"
#include "ocidl.h"
#include "olectl.h"
#include "ole2.h"
#include "winreg.h"
#include "shlwapi.h"
#include "gdiplus.h"
#include "gdiplus_private.h"
#include "wine/debug.h"
#include "wine/list.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
typedef struct EmfPlusRecordHeader
{
WORD Type;
WORD Flags;
DWORD Size;
DWORD DataSize;
} EmfPlusRecordHeader;
typedef struct EmfPlusHeader
{
EmfPlusRecordHeader Header;
DWORD Version;
DWORD EmfPlusFlags;
DWORD LogicalDpiX;
DWORD LogicalDpiY;
} EmfPlusHeader;
static GpStatus METAFILE_AllocateRecord(GpMetafile *metafile, DWORD size, void **result)
{
DWORD size_needed;
EmfPlusRecordHeader *record;
if (!metafile->comment_data_size)
{
DWORD data_size = max(256, size * 2 + 4);
metafile->comment_data = GdipAlloc(data_size);
if (!metafile->comment_data)
return OutOfMemory;
memcpy(metafile->comment_data, "EMF+", 4);
metafile->comment_data_size = data_size;
metafile->comment_data_length = 4;
}
size_needed = size + metafile->comment_data_length;
if (size_needed > metafile->comment_data_size)
{
DWORD data_size = size_needed * 2;
BYTE *new_data = GdipAlloc(data_size);
if (!new_data)
return OutOfMemory;
memcpy(new_data, metafile->comment_data, metafile->comment_data_length);
metafile->comment_data_size = data_size;
GdipFree(metafile->comment_data);
metafile->comment_data = new_data;
}
*result = metafile->comment_data + metafile->comment_data_length;
metafile->comment_data_length += size;
record = (EmfPlusRecordHeader*)*result;
record->Size = size;
record->DataSize = size - sizeof(EmfPlusRecordHeader);
return Ok;
}
static void METAFILE_WriteRecords(GpMetafile *metafile)
{
if (metafile->comment_data_length > 4)
{
GdiComment(metafile->record_dc, metafile->comment_data_length, metafile->comment_data);
metafile->comment_data_length = 4;
}
}
static GpStatus METAFILE_WriteHeader(GpMetafile *metafile, HDC hdc)
{
GpStatus stat;
if (metafile->metafile_type == MetafileTypeEmfPlusOnly || metafile->metafile_type == MetafileTypeEmfPlusDual)
{
EmfPlusHeader *header;
stat = METAFILE_AllocateRecord(metafile, sizeof(EmfPlusHeader), (void**)&header);
if (stat != Ok)
return stat;
header->Header.Type = EmfPlusRecordTypeHeader;
if (metafile->metafile_type == MetafileTypeEmfPlusDual)
header->Header.Flags = 1;
else
header->Header.Flags = 0;
header->Version = 0xDBC01002;
if (GetDeviceCaps(hdc, TECHNOLOGY) == DT_RASDISPLAY)
header->EmfPlusFlags = 1;
else
header->EmfPlusFlags = 0;
header->LogicalDpiX = GetDeviceCaps(hdc, LOGPIXELSX);
header->LogicalDpiY = GetDeviceCaps(hdc, LOGPIXELSY);
METAFILE_WriteRecords(metafile);
}
return Ok;
}
static GpStatus METAFILE_WriteEndOfFile(GpMetafile *metafile)
{
GpStatus stat;
if (metafile->metafile_type == MetafileTypeEmfPlusOnly || metafile->metafile_type == MetafileTypeEmfPlusDual)
{
EmfPlusRecordHeader *record;
stat = METAFILE_AllocateRecord(metafile, sizeof(EmfPlusRecordHeader), (void**)&record);
if (stat != Ok)
return stat;
record->Type = EmfPlusRecordTypeEndOfFile;
record->Flags = 0;
METAFILE_WriteRecords(metafile);
}
return Ok;
}
GpStatus WINGDIPAPI GdipRecordMetafile(HDC hdc, EmfType type, GDIPCONST GpRectF *frameRect,
MetafileFrameUnit frameUnit, GDIPCONST WCHAR *desc, GpMetafile **metafile)
{
HDC record_dc;
REAL framerect_factor_x, framerect_factor_y;
RECT rc;
GpStatus stat;
TRACE("(%p %d %p %d %p %p)\n", hdc, type, frameRect, frameUnit, desc, metafile);
if (!hdc || type < EmfTypeEmfOnly || type > EmfTypeEmfPlusDual || !metafile)
return InvalidParameter;
if (!frameRect)
{
FIXME("not implemented for NULL rect\n");
return NotImplemented;
}
switch (frameUnit)
{
case MetafileFrameUnitPixel:
framerect_factor_x = 2540.0 / GetDeviceCaps(hdc, LOGPIXELSX);
framerect_factor_y = 2540.0 / GetDeviceCaps(hdc, LOGPIXELSY);
break;
case MetafileFrameUnitPoint:
framerect_factor_x = framerect_factor_y = 2540.0 / 72.0;
break;
case MetafileFrameUnitInch:
framerect_factor_x = framerect_factor_y = 2540.0;
break;
case MetafileFrameUnitDocument:
framerect_factor_x = framerect_factor_y = 2540.0 / 300.0;
break;
case MetafileFrameUnitMillimeter:
framerect_factor_x = framerect_factor_y = 100.0;
break;
case MetafileFrameUnitGdi:
framerect_factor_x = framerect_factor_y = 1.0;
break;
default:
return InvalidParameter;
}
rc.left = framerect_factor_x * frameRect->X;
rc.top = framerect_factor_y * frameRect->Y;
rc.right = rc.left + framerect_factor_x * frameRect->Width;
rc.bottom = rc.top + framerect_factor_y * frameRect->Height;
record_dc = CreateEnhMetaFileW(hdc, NULL, &rc, desc);
if (!record_dc)
return GenericError;
*metafile = GdipAlloc(sizeof(GpMetafile));
if(!*metafile)
{
DeleteEnhMetaFile(CloseEnhMetaFile(record_dc));
return OutOfMemory;
}
(*metafile)->image.type = ImageTypeMetafile;
(*metafile)->image.picture = NULL;
(*metafile)->image.flags = ImageFlagsNone;
(*metafile)->image.palette_flags = 0;
(*metafile)->image.palette_count = 0;
(*metafile)->image.palette_size = 0;
(*metafile)->image.palette_entries = NULL;
(*metafile)->bounds = *frameRect;
(*metafile)->unit = frameUnit;
(*metafile)->metafile_type = type;
(*metafile)->record_dc = record_dc;
(*metafile)->comment_data = NULL;
(*metafile)->comment_data_size = 0;
(*metafile)->comment_data_length = 0;
(*metafile)->hemf = NULL;
stat = METAFILE_WriteHeader(*metafile, hdc);
if (stat != Ok)
{
DeleteEnhMetaFile(CloseEnhMetaFile(record_dc));
GdipFree(*metafile);
*metafile = NULL;
return OutOfMemory;
}
return stat;
}
/*****************************************************************************
* GdipRecordMetafileI [GDIPLUS.@]
*/
GpStatus WINGDIPAPI GdipRecordMetafileI(HDC hdc, EmfType type, GDIPCONST GpRect *frameRect,
MetafileFrameUnit frameUnit, GDIPCONST WCHAR *desc, GpMetafile **metafile)
{
GpRectF frameRectF, *pFrameRectF;
TRACE("(%p %d %p %d %p %p)\n", hdc, type, frameRect, frameUnit, desc, metafile);
if (frameRect)
{
frameRectF.X = frameRect->X;
frameRectF.Y = frameRect->Y;
frameRectF.Width = frameRect->Width;
frameRectF.Height = frameRect->Height;
pFrameRectF = &frameRectF;
}
else
pFrameRectF = NULL;
return GdipRecordMetafile(hdc, type, pFrameRectF, frameUnit, desc, metafile);
}
GpStatus METAFILE_GetGraphicsContext(GpMetafile* metafile, GpGraphics **result)
{
GpStatus stat;
if (!metafile->record_dc || metafile->record_graphics)
return InvalidParameter;
stat = graphics_from_image((GpImage*)metafile, &metafile->record_graphics);
if (stat == Ok)
*result = metafile->record_graphics;
return stat;
}
GpStatus METAFILE_GraphicsDeleted(GpMetafile* metafile)
{
GpStatus stat;
stat = METAFILE_WriteEndOfFile(metafile);
metafile->record_graphics = NULL;
metafile->hemf = CloseEnhMetaFile(metafile->record_dc);
metafile->record_dc = NULL;
GdipFree(metafile->comment_data);
metafile->comment_data = NULL;
metafile->comment_data_size = 0;
return stat;
}
GpStatus WINGDIPAPI GdipGetHemfFromMetafile(GpMetafile *metafile, HENHMETAFILE *hEmf)
{
TRACE("(%p,%p)\n", metafile, hEmf);
if (!metafile || !hEmf || !metafile->hemf)
return InvalidParameter;
*hEmf = metafile->hemf;
metafile->hemf = NULL;
return Ok;
}
struct enum_metafile_data
{
EnumerateMetafileProc callback;
void *callback_data;
};
static int CALLBACK enum_metafile_proc(HDC hDC, HANDLETABLE *lpHTable, const ENHMETARECORD *lpEMFR,
int nObj, LPARAM lpData)
{
BOOL ret;
struct enum_metafile_data *data = (struct enum_metafile_data*)lpData;
const BYTE* pStr;
/* First check for an EMF+ record. */
if (lpEMFR->iType == EMR_GDICOMMENT)
{
const EMRGDICOMMENT *comment = (const EMRGDICOMMENT*)lpEMFR;
if (comment->cbData >= 4 && memcmp(comment->Data, "EMF+", 4) == 0)
{
int offset = 4;
while (offset + sizeof(EmfPlusRecordHeader) <= comment->cbData)
{
const EmfPlusRecordHeader *record = (const EmfPlusRecordHeader*)&comment->Data[offset];
if (record->DataSize)
pStr = (const BYTE*)(record+1);
else
pStr = NULL;
ret = data->callback(record->Type, record->Flags, record->DataSize,
pStr, data->callback_data);
if (!ret)
return 0;
offset += record->Size;
}
return 1;
}
}
if (lpEMFR->nSize != 8)
pStr = (const BYTE*)lpEMFR->dParm;
else
pStr = NULL;
return data->callback(lpEMFR->iType, 0, lpEMFR->nSize-8,
pStr, data->callback_data);
}
GpStatus WINGDIPAPI GdipEnumerateMetafileSrcRectDestPoints(GpGraphics *graphics,
GDIPCONST GpMetafile *metafile, GDIPCONST GpPointF *destPoints, INT count,
GDIPCONST GpRectF *srcRect, Unit srcUnit, EnumerateMetafileProc callback,
VOID *callbackData, GDIPCONST GpImageAttributes *imageAttributes)
{
struct enum_metafile_data data;
TRACE("(%p,%p,%p,%i,%p,%i,%p,%p,%p)\n", graphics, metafile,
destPoints, count, srcRect, srcUnit, callback, callbackData,
imageAttributes);
if (!graphics || !metafile || !destPoints || count != 3 || !srcRect)
return InvalidParameter;
if (!metafile->hemf)
return InvalidParameter;
TRACE("%s %i -> %s %s %s\n", debugstr_rectf(srcRect), srcUnit,
debugstr_pointf(&destPoints[0]), debugstr_pointf(&destPoints[1]),
debugstr_pointf(&destPoints[2]));
data.callback = callback;
data.callback_data = callbackData;
EnumEnhMetaFile(0, metafile->hemf, enum_metafile_proc, &data, NULL);
return Ok;
}