-/*\r
-*********************************************************************\r
- * File: ximawmf.h\r
- * Purpose: Windows Metafile Class Loader and Writer\r
- * Author: Volker Horch - vhorch@gmx.de\r
- * created: 13-Jun-2002\r
-*********************************************************************\r
- */\r
-\r
-/*\r
-*********************************************************************\r
- Notes by Author:\r
-*********************************************************************\r
-\r
- Limitations:\r
- ============\r
-\r
- a) Transparency:\r
-\r
- A Metafile is vector graphics, which has transparency by design.\r
- This class always converts into a Bitmap format. Transparency is\r
- supported, but there is no good way to find out, which parts\r
- of the Metafile are transparent. There are two ways how we can\r
- handle this:\r
-\r
- - Clear the Background of the Bitmap with the background color\r
- you like (i have used COLOR_WINDOW) and don't support transparency.\r
-\r
- below #define XMF_SUPPORT_TRANSPARENCY 0\r
- #define XMF_COLOR_BACK RGB(Background color you like)\r
-\r
- - Clear the Background of the Bitmap with a very unusual color\r
- (which one ?) and use this color as the transparent color\r
-\r
- below #define XMF_SUPPORT_TRANSPARENCY 1\r
- #define XMF_COLOR_TRANSPARENT_R ...\r
- #define XMF_COLOR_TRANSPARENT_G ...\r
- #define XMF_COLOR_TRANSPARENT_B ...\r
-\r
- b) Resolution\r
-\r
- Once we have converted the Metafile into a Bitmap and we zoom in\r
- or out, the image may not look very good. If we still had the\r
- original Metafile, zooming would produce good results always.\r
-\r
- c) Size\r
-\r
- Although the filesize of a Metafile may be very small, it might\r
- produce a Bitmap with a bombastic size. Assume you have a Metafile\r
- with an image size of 6000*4000, which contains just one Metafile\r
- record ((e.g. a line from (0,0) to (6000, 4000)). The filesize\r
- of this Metafile would be let's say 100kB. If we convert it to\r
- a 6000*4000 Bitmap with 24 Bits/Pixes, the Bitmap would consume\r
- about 68MB of memory.\r
-\r
- I have choosen, to limit the size of the Bitmap to max.\r
- screensize, to avoid memory problems.\r
-\r
- If you want something else,\r
- modify #define XMF_MAXSIZE_CX / XMF_MAXSIZE_CY below\r
-\r
-*********************************************************************\r
-*/\r
-\r
-#ifndef _XIMAWMF_H\r
-#define _XIMAWMF_H\r
-\r
-#include "ximage.h"\r
-\r
-#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS\r
-\r
-class CxImageWMF: public CxImage\r
-{\r
-\r
-#pragma pack(1)\r
-\r
-typedef struct tagRECT16\r
-{\r
- short int left;\r
- short int top;\r
- short int right;\r
- short int bottom;\r
-} RECT16;\r
-\r
-// taken from Windos 3.11 SDK Documentation (Programmer's Reference Volume 4: Resources)\r
-typedef struct tagMETAFILEHEADER\r
-{\r
- DWORD key; // always 0x9ac6cdd7\r
- WORD reserved1; // reserved = 0\r
- RECT16 bbox; // bounding rectangle in metafile units as defined in "inch"\r
- WORD inch; // number of metafile units per inch (should be < 1440)\r
- DWORD reserved2; // reserved = 0\r
- WORD checksum; // sum of the first 10 WORDS (using XOR operator)\r
-} METAFILEHEADER;\r
-\r
-#pragma pack()\r
-\r
-public:\r
- CxImageWMF(): CxImage(CXIMAGE_FORMAT_WMF) { }\r
-\r
- bool Decode(CxFile * hFile, long nForceWidth=0, long nForceHeight=0);\r
- bool Decode(FILE *hFile, long nForceWidth=0, long nForceHeight=0)\r
- { CxIOFile file(hFile); return Decode(&file,nForceWidth,nForceHeight); }\r
-\r
-#if CXIMAGE_SUPPORT_ENCODE\r
- bool Encode(CxFile * hFile);\r
- bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }\r
-#endif // CXIMAGE_SUPPORT_ENCODE\r
-\r
-protected:\r
- void ShrinkMetafile(int &cx, int &cy);\r
- BOOL CheckMetafileHeader(METAFILEHEADER *pmetafileheader);\r
- HENHMETAFILE ConvertWmfFiletoEmf(CxFile *pFile, METAFILEHEADER *pmetafileheader);\r
- HENHMETAFILE ConvertEmfFiletoEmf(CxFile *pFile, ENHMETAHEADER *pemfh);\r
-\r
-};\r
-\r
-#define METAFILEKEY 0x9ac6cdd7L\r
-\r
-// Background color definition (if no transparency). see Notes above\r
-#define XMF_COLOR_BACK GetSysColor(COLOR_WINDOW)\r
-// alternatives\r
-//#define XMF_COLOR_BACK RGB(192, 192, 192) // lite gray\r
-//#define XMF_COLOR_BACK RGB( 0, 0, 0) // black\r
-//#define XMF_COLOR_BACK RGB(255, 255, 255) // white\r
-\r
-\r
-// transparency support. see Notes above\r
-#define XMF_SUPPORT_TRANSPARENCY 0\r
-#define XMF_COLOR_TRANSPARENT_R 211\r
-#define XMF_COLOR_TRANSPARENT_G 121\r
-#define XMF_COLOR_TRANSPARENT_B 112\r
-// don't change\r
-#define XMF_COLOR_TRANSPARENT RGB (XMF_COLOR_TRANSPARENT_R, \\r
- XMF_COLOR_TRANSPARENT_G, \\r
- XMF_COLOR_TRANSPARENT_B)\r
-// don't change\r
-#define XMF_RGBQUAD_TRANSPARENT XMF_COLOR_TRANSPARENT_B, \\r
- XMF_COLOR_TRANSPARENT_G, \\r
- XMF_COLOR_TRANSPARENT_R, \\r
- 0\r
-// max. size. see Notes above\r
-// alternatives\r
-//#define XMF_MAXSIZE_CX (GetSystemMetrics(SM_CXSCREEN)-10)\r
-//#define XMF_MAXSIZE_CY (GetSystemMetrics(SM_CYSCREEN)-50)\r
-//#define XMF_MAXSIZE_CX (2*GetSystemMetrics(SM_CXSCREEN)/3)\r
-//#define XMF_MAXSIZE_CY (2*GetSystemMetrics(SM_CYSCREEN)/3)\r
-#define XMF_MAXSIZE_CX 4000\r
-#define XMF_MAXSIZE_CY 4000\r
-\r
-\r
-#endif\r
-\r
-#endif\r
+/*
+*********************************************************************
+ * File: ximawmf.h
+ * Purpose: Windows Metafile Class Loader and Writer
+ * Author: Volker Horch - vhorch@gmx.de
+ * created: 13-Jun-2002
+*********************************************************************
+ */
+
+/*
+*********************************************************************
+ Notes by Author:
+*********************************************************************
+
+ Limitations:
+ ============
+
+ a) Transparency:
+
+ A Metafile is vector graphics, which has transparency by design.
+ This class always converts into a Bitmap format. Transparency is
+ supported, but there is no good way to find out, which parts
+ of the Metafile are transparent. There are two ways how we can
+ handle this:
+
+ - Clear the Background of the Bitmap with the background color
+ you like (i have used COLOR_WINDOW) and don't support transparency.
+
+ below #define XMF_SUPPORT_TRANSPARENCY 0
+ #define XMF_COLOR_BACK RGB(Background color you like)
+
+ - Clear the Background of the Bitmap with a very unusual color
+ (which one ?) and use this color as the transparent color
+
+ below #define XMF_SUPPORT_TRANSPARENCY 1
+ #define XMF_COLOR_TRANSPARENT_R ...
+ #define XMF_COLOR_TRANSPARENT_G ...
+ #define XMF_COLOR_TRANSPARENT_B ...
+
+ b) Resolution
+
+ Once we have converted the Metafile into a Bitmap and we zoom in
+ or out, the image may not look very good. If we still had the
+ original Metafile, zooming would produce good results always.
+
+ c) Size
+
+ Although the filesize of a Metafile may be very small, it might
+ produce a Bitmap with a bombastic size. Assume you have a Metafile
+ with an image size of 6000*4000, which contains just one Metafile
+ record ((e.g. a line from (0,0) to (6000, 4000)). The filesize
+ of this Metafile would be let's say 100kB. If we convert it to
+ a 6000*4000 Bitmap with 24 Bits/Pixes, the Bitmap would consume
+ about 68MB of memory.
+
+ I have choosen, to limit the size of the Bitmap to max.
+ screensize, to avoid memory problems.
+
+ If you want something else,
+ modify #define XMF_MAXSIZE_CX / XMF_MAXSIZE_CY below
+
+*********************************************************************
+*/
+
+#ifndef _XIMAWMF_H
+#define _XIMAWMF_H
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS
+
+class CxImageWMF: public CxImage
+{
+
+#pragma pack(1)
+
+typedef struct tagRECT16
+{
+ short int left;
+ short int top;
+ short int right;
+ short int bottom;
+} RECT16;
+
+// taken from Windos 3.11 SDK Documentation (Programmer's Reference Volume 4: Resources)
+typedef struct tagMETAFILEHEADER
+{
+ DWORD key; // always 0x9ac6cdd7
+ WORD reserved1; // reserved = 0
+ RECT16 bbox; // bounding rectangle in metafile units as defined in "inch"
+ WORD inch; // number of metafile units per inch (should be < 1440)
+ DWORD reserved2; // reserved = 0
+ WORD checksum; // sum of the first 10 WORDS (using XOR operator)
+} METAFILEHEADER;
+
+#pragma pack()
+
+public:
+ CxImageWMF(): CxImage(CXIMAGE_FORMAT_WMF) { }
+
+ bool Decode(CxFile * hFile, long nForceWidth=0, long nForceHeight=0);
+ bool Decode(FILE *hFile, long nForceWidth=0, long nForceHeight=0)
+ { CxIOFile file(hFile); return Decode(&file,nForceWidth,nForceHeight); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+protected:
+ void ShrinkMetafile(int &cx, int &cy);
+ BOOL CheckMetafileHeader(METAFILEHEADER *pmetafileheader);
+ HENHMETAFILE ConvertWmfFiletoEmf(CxFile *pFile, METAFILEHEADER *pmetafileheader);
+ HENHMETAFILE ConvertEmfFiletoEmf(CxFile *pFile, ENHMETAHEADER *pemfh);
+
+};
+
+#define METAFILEKEY 0x9ac6cdd7L
+
+// Background color definition (if no transparency). see Notes above
+#define XMF_COLOR_BACK GetSysColor(COLOR_WINDOW)
+// alternatives
+//#define XMF_COLOR_BACK RGB(192, 192, 192) // lite gray
+//#define XMF_COLOR_BACK RGB( 0, 0, 0) // black
+//#define XMF_COLOR_BACK RGB(255, 255, 255) // white
+
+
+// transparency support. see Notes above
+#define XMF_SUPPORT_TRANSPARENCY 0
+#define XMF_COLOR_TRANSPARENT_R 211
+#define XMF_COLOR_TRANSPARENT_G 121
+#define XMF_COLOR_TRANSPARENT_B 112
+// don't change
+#define XMF_COLOR_TRANSPARENT RGB (XMF_COLOR_TRANSPARENT_R, \
+ XMF_COLOR_TRANSPARENT_G, \
+ XMF_COLOR_TRANSPARENT_B)
+// don't change
+#define XMF_RGBQUAD_TRANSPARENT XMF_COLOR_TRANSPARENT_B, \
+ XMF_COLOR_TRANSPARENT_G, \
+ XMF_COLOR_TRANSPARENT_R, \
+ 0
+// max. size. see Notes above
+// alternatives
+//#define XMF_MAXSIZE_CX (GetSystemMetrics(SM_CXSCREEN)-10)
+//#define XMF_MAXSIZE_CY (GetSystemMetrics(SM_CYSCREEN)-50)
+//#define XMF_MAXSIZE_CX (2*GetSystemMetrics(SM_CXSCREEN)/3)
+//#define XMF_MAXSIZE_CY (2*GetSystemMetrics(SM_CYSCREEN)/3)
+#define XMF_MAXSIZE_CX 4000
+#define XMF_MAXSIZE_CY 4000
+
+
+#endif
+
+#endif
git://git.creatis.insa-lyon.fr / clitk.git / blobdiff