1/*
  2 * gdiplusmetaheader.h
  3 *
  4 * GDI+ metafile header structure
  5 *
  6 * This file is part of the w32api package.
  7 *
  8 * Contributors:
  9 *   Created by Markus Koenig <markus@stber-koenig.de>
 10 *
 11 * THIS SOFTWARE IS NOT COPYRIGHTED
 12 *
 13 * This source code is offered for use in the public domain. You may
 14 * use, modify or distribute it freely.
 15 *
 16 * This code is distributed in the hope that it will be useful but
 17 * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
 18 * DISCLAIMED. This includes but is not limited to warranties of
 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 20 *
 21 */
 22
 23#ifndef __GDIPLUS_METAHEADER_H
 24#define __GDIPLUS_METAHEADER_H
 25#if __GNUC__ >=3
 26#pragma GCC system_header
 27#endif
 28
 29
 30/*
 31 * FIXME: is 1 the correct value for GDIP_EMFPLUSFLAGS_DISPLAY? This number
 32 * has been determined by calling Metafile::GetMetafileHeader() on a EMF+
 33 * metafile which was recorded on a display device context (SampleMetafile.emf).
 34 */
 35#ifdef __cplusplus
 36const UINT GDIP_EMFPLUSFLAGS_DISPLAY = 1;
 37#else
 38#define GDIP_EMFPLUSFLAGS_DISPLAY ((UINT) 1)
 39#endif
 40
 41typedef struct tagENHMETAHEADER3 {
 42	DWORD iType;
 43	DWORD nSize;
 44	RECTL rclBounds;
 45	RECTL rclFrame;
 46	DWORD dSignature;
 47	DWORD nVersion;
 48	DWORD nBytes;
 49	DWORD nRecords;
 50	WORD nHandles;
 51	WORD sReserved;
 52	DWORD nDescription;
 53	DWORD offDescription;
 54	DWORD nPalEntries;
 55	SIZEL szlDevice;
 56	SIZEL szlMillimeters;
 57} ENHMETAHEADER3,*LPENHMETAHEADER3;
 58
 59typedef struct PWMFRect16 {
 60	INT16 Left;
 61	INT16 Top;
 62	INT16 Right;
 63	INT16 Bottom;
 64} PWMFRect16;
 65
 66typedef struct WmfPlaceableFileHeader {
 67	UINT32 Key;
 68	INT16 Hmf;
 69	PWMFRect16 BoundingBox;
 70	INT16 Inch;
 71	UINT32 Reserved;
 72	INT16 Checksum;
 73} WmfPlaceableFileHeader;
 74
 75typedef struct MetafileHeader {
 76	MetafileType Type;
 77	UINT Size;
 78	UINT Version;
 79	UINT EmfPlusFlags;
 80	REAL DpiX;
 81	REAL DpiY;
 82	INT X;
 83	INT Y;
 84	INT Width;
 85	INT Height;
 86	__extension__ union {
 87		METAHEADER WmfHeader;
 88		ENHMETAHEADER3 EmfHeader;
 89	};
 90	INT EmfPlusHeaderSize;
 91	INT LogicalDpiX;
 92	INT LogicalDpiY;
 93
 94	#ifdef __cplusplus
 95	public:
 96	void GetBounds(Rect *rect) const
 97	{
 98		if (rect)
 99		{
100			rect->X = X;
101			rect->Y = Y;
102			rect->Width = Width;
103			rect->Height = Height;
104		}
105	}
106	REAL GetDpiX() const
107	{
108		return DpiX;
109	}
110	REAL GetDpiY() const
111	{
112		return DpiY;
113	}
114	const ENHMETAHEADER3* GetEmfHeader() const
115	{
116		if (Type == MetafileTypeEmf
117				|| Type == MetafileTypeEmfPlusOnly
118				|| Type == MetafileTypeEmfPlusDual)
119		{
120			return &EmfHeader;
121		}
122		else
123		{
124			return NULL;
125		}
126	}
127	UINT GetEmfPlusFlags() const
128	{
129		return EmfPlusFlags;
130	}
131	UINT GetMetafileSize() const
132	{
133		return Size;
134	}
135	MetafileType GetType() const
136	{
137		return Type;
138	}
139	UINT GetVersion() const
140	{
141		return Version;
142	}
143	const METAHEADER* GetWmfHeader() const
144	{
145		if (Type == MetafileTypeWmf || Type == MetafileTypeWmfPlaceable)
146		{
147			return &WmfHeader;
148		}
149		else
150		{
151			return NULL;
152		}
153	}
154	BOOL IsDisplay() const
155	{
156		return EmfPlusFlags == GDIP_EMFPLUSFLAGS_DISPLAY;
157	}
158	BOOL IsEmf() const
159	{
160		return Type == MetafileTypeEmf;
161	}
162	BOOL IsEmfOrEmfPlus() const
163	{
164		return Type == MetafileTypeEmf
165			|| Type == MetafileTypeEmfPlusOnly
166			|| Type == MetafileTypeEmfPlusDual;
167	}
168	BOOL IsEmfPlus() const
169	{
170		return Type == MetafileTypeEmfPlusOnly
171			|| Type == MetafileTypeEmfPlusDual;
172	}
173	BOOL IsEmfPlusDual() const
174	{
175		return Type == MetafileTypeEmfPlusDual;
176	}
177	BOOL IsEmfPlusOnly() const
178	{
179		return Type == MetafileTypeEmfPlusOnly;
180	}
181	BOOL IsWmf() const
182	{
183		return Type == MetafileTypeWmf
184			|| Type == MetafileTypeWmfPlaceable;
185	}
186	BOOL IsWmfPlaceable() const
187	{
188		return Type == MetafileTypeWmfPlaceable;
189	}
190	#endif
191} MetafileHeader;
192
193#endif /* __GDIPLUS_METAHEADER_H */