home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 10 Tools
/
10-Tools.zip
/
wxos2233.zip
/
wxOS2-2_3_3.zip
/
wxWindows-2.3.3
/
utils
/
tex2rtf
/
src
/
bmputils.h
next >
Wrap
C/C++ Source or Header
|
1999-01-02
|
6KB
|
228 lines
/////////////////////////////////////////////////////////////////////////////
// Name: bmputils.h
// Purpose: Utilities for manipulating bitmap and metafile images for
// the purposes of conversion to RTF
// Author: Julian Smart
// Modified by:
// Created: 7.9.93
// RCS-ID: $Id: bmputils.h,v 1.1 1999/01/02 00:44:34 JS Exp $
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
static char hexArray[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F' };
void DecToHex(int dec, char *buf)
{
int firstDigit = (int)(dec/16.0);
int secondDigit = (int)(dec - (firstDigit*16.0));
buf[0] = hexArray[firstDigit];
buf[1] = hexArray[secondDigit];
buf[2] = 0;
}
static unsigned int getshort(FILE *fp)
{
int c, c1;
c = getc(fp); c1 = getc(fp);
return ((unsigned int) c) + (((unsigned int) c1) << 8);
}
static unsigned long getint(FILE *fp)
{
int c, c1, c2, c3;
c = getc(fp); c1 = getc(fp); c2 = getc(fp); c3 = getc(fp);
return (long)((long) c) +
(((long) c1) << 8) +
(((long) c2) << 16) +
(((long) c3) << 24);
}
bool GetBMPHeader(FILE *fp, int *Width, int *Height, int *Planes, int *BitsPerPixel)
{
unsigned long bfSize, bfOffBits, biSize, biWidth, biHeight, biPlanes;
unsigned long biBitCount, biCompression, biSizeImage, biXPelsPerMeter;
unsigned long biYPelsPerMeter, biClrUsed, biClrImportant;
/* read the file type (first two bytes) */
int c = getc(fp); int c1 = getc(fp);
if (c!='B' || c1!='M') { return FALSE; }
bfSize = getint(fp);
getshort(fp); /* reserved and ignored */
getshort(fp);
bfOffBits = getint(fp);
biSize = getint(fp);
biWidth = getint(fp);
biHeight = getint(fp);
biPlanes = getshort(fp);
biBitCount = getshort(fp);
biCompression = getint(fp);
biSizeImage = getint(fp);
biXPelsPerMeter = getint(fp);
biYPelsPerMeter = getint(fp);
biClrUsed = getint(fp);
biClrImportant = getint(fp);
*Width = (int)biWidth;
*Height = (int)biHeight;
*Planes = (int)biPlanes;
*BitsPerPixel = (int)biBitCount;
// fseek(fp, bfOffBits, SEEK_SET);
return TRUE;
}
static int scanLineWidth = 0;
bool OutputBitmapHeader(FILE *fd, bool isWinHelp = FALSE)
{
int Width, Height, Planes, BitsPerPixel;
if (!GetBMPHeader(fd, &Width, &Height, &Planes, &BitsPerPixel))
return FALSE;
scanLineWidth = (int)((float)Width/(8.0/(float)BitsPerPixel));
if ((float)((int)(scanLineWidth/2.0)) != (float)(scanLineWidth/2.0))
scanLineWidth ++;
int goalW = 15*Width;
int goalH = 15*Height;
TexOutput("{\\pict");
if (isWinHelp) TexOutput("\\wbitmap0");
else TexOutput("\\dibitmap");
char buf[50];
TexOutput("\\picw"); sprintf(buf, "%d", Width); TexOutput(buf);
TexOutput("\\pich"); sprintf(buf, "%d", Height); TexOutput(buf);
TexOutput("\\wbmbitspixel"); sprintf(buf, "%d", BitsPerPixel); TexOutput(buf);
TexOutput("\\wbmplanes"); sprintf(buf, "%d", Planes); TexOutput(buf);
TexOutput("\\wbmwidthbytes"); sprintf(buf, "%d", scanLineWidth); TexOutput(buf);
TexOutput("\\picwgoal"); sprintf(buf, "%d", goalW); TexOutput(buf);
TexOutput("\\pichgoal"); sprintf(buf, "%d", goalH); TexOutput(buf);
TexOutput("\n");
return TRUE;
}
bool OutputBitmapData(FILE *fd)
{
fseek(fd, 14, SEEK_SET);
int bytesSoFar = 0;
int ch = getc(fd);
char hexBuf[3];
while (ch != EOF)
{
if (bytesSoFar == scanLineWidth)
{
bytesSoFar = 0;
TexOutput("\n");
}
DecToHex(ch, hexBuf);
TexOutput(hexBuf);
bytesSoFar ++;
ch = getc(fd);
}
TexOutput("\n}\n");
return TRUE;
}
#ifdef __WXMSW__
struct mfPLACEABLEHEADER {
DWORD key;
HANDLE hmf;
RECT bbox;
WORD inch;
DWORD reserved;
WORD checksum;
};
// Returns size in TWIPS
bool GetMetafileHeader(FILE *handle, int *width, int *height)
{
char buffer[40];
mfPLACEABLEHEADER *theHeader = (mfPLACEABLEHEADER *)&buffer;
fread((void *)theHeader, sizeof(char), sizeof(mfPLACEABLEHEADER), handle);
if (theHeader->key != 0x9AC6CDD7)
{
return FALSE;
}
float widthInUnits = (float)theHeader->bbox.right - theHeader->bbox.left;
float heightInUnits = (float)theHeader->bbox.bottom - theHeader->bbox.top;
*width = (int)((widthInUnits*1440.0)/theHeader->inch);
*height = (int)((heightInUnits*1440.0)/theHeader->inch);
return TRUE;
}
bool OutputMetafileHeader(FILE *handle, bool isWinHelp, int userWidth, int userHeight)
{
int Width, Height;
if (!GetMetafileHeader(handle, &Width, &Height))
return FALSE;
scanLineWidth = 64;
int goalW = Width;
int goalH = Height;
// Scale to user's dimensions if we have the information
if (userWidth > 0 && userHeight == 0)
{
double scaleFactor = ((double)userWidth/(double)goalW);
goalW = userWidth;
goalH = (int)((goalH * scaleFactor) + 0.5);
}
else if (userWidth == 0 && userHeight > 0)
{
double scaleFactor = ((double)userHeight/(double)goalH);
goalH = userHeight;
goalW = (int)((goalW * scaleFactor) + 0.5);
}
else if (userWidth > 0 && userHeight > 0)
{
goalW = userWidth;
goalH = userHeight;
}
TexOutput("{\\pict");
TexOutput("\\wmetafile8");
char buf[50];
TexOutput("\\picw"); sprintf(buf, "%d", Width); TexOutput(buf);
TexOutput("\\pich"); sprintf(buf, "%d", Height); TexOutput(buf);
TexOutput("\\picwgoal"); sprintf(buf, "%d", goalW); TexOutput(buf);
TexOutput("\\pichgoal"); sprintf(buf, "%d", goalH); TexOutput(buf);
TexOutput("\n");
return TRUE;
}
bool OutputMetafileData(FILE *handle)
{
int bytesSoFar = 0;
char hexBuf[3];
int ch;
do
{
ch = getc(handle);
if (bytesSoFar == scanLineWidth)
{
bytesSoFar = 0;
TexOutput("\n");
}
if (ch != EOF)
{
DecToHex(ch, hexBuf);
TexOutput(hexBuf);
bytesSoFar ++;
}
} while (ch != EOF);
TexOutput("\n}\n");
return TRUE;
}
#endif