void EScale::run()
{
bool ret;
isRun = true;
Dev = new QSerialPort;
INIT:
if (!isRun)
goto EXIT;
if (!devInit("COM9"))
{
msleep(200);
goto INIT;
}
while (isRun)
{
ReadWeight();
msleep(500);
}
EXIT:
Dev->close();
delete Dev;
Dev = NULL;
}
/*******************************************************************************
* ReadFontMetrics
*
* Allocates space for the AFM on the driver heap and reads basic font metrics.
* Returns FALSE for memory allocation failure; sets *p_afm to NULL if AFM file
* is unusable.
*
*/
static BOOL ReadFontMetrics(FILE *file, CHAR buffer[], INT bufsize, AFM **p_afm)
{
AFM *afm;
BOOL retval, found;
*p_afm = afm = HeapAlloc(PSDRV_Heap, 0, sizeof(*afm));
if (afm == NULL)
return FALSE;
retval = ReadWeight(file, buffer, bufsize, afm, &found);
if (retval == FALSE || found == FALSE)
goto cleanup_afm;
retval = ReadFloat(file, buffer, bufsize, "ItalicAngle",
&(afm->ItalicAngle), &found);
if (retval == FALSE || found == FALSE)
goto cleanup_afm;
retval = ReadFixedPitch(file, buffer, bufsize, afm, &found);
if (retval == FALSE || found == FALSE)
goto cleanup_afm;
retval = ReadBBox(file, buffer, bufsize, afm, &found);
if (retval == FALSE || found == FALSE)
goto cleanup_afm;
retval = ReadFloat(file, buffer, bufsize, "UnderlinePosition",
&(afm->UnderlinePosition), &found);
if (retval == FALSE || found == FALSE)
goto cleanup_afm;
retval = ReadFloat(file, buffer, bufsize, "UnderlineThickness",
&(afm->UnderlineThickness), &found);
if (retval == FALSE || found == FALSE)
goto cleanup_afm;
retval = ReadFloat(file, buffer, bufsize, "Ascender", /* optional */
&(afm->Ascender), &found);
if (retval == FALSE)
goto cleanup_afm;
retval = ReadFloat(file, buffer, bufsize, "Descender", /* optional */
&(afm->Descender), &found);
if (retval == FALSE)
goto cleanup_afm;
afm->WinMetrics.usUnitsPerEm = 1000;
afm->WinMetrics.sTypoAscender = (SHORT)Round(afm->Ascender);
afm->WinMetrics.sTypoDescender = (SHORT)Round(afm->Descender);
if (afm->WinMetrics.sTypoAscender == 0)
afm->WinMetrics.sTypoAscender = (SHORT)Round(afm->FontBBox.ury);
if (afm->WinMetrics.sTypoDescender == 0)
afm->WinMetrics.sTypoDescender = (SHORT)Round(afm->FontBBox.lly);
afm->WinMetrics.sTypoLineGap = 1200 -
(afm->WinMetrics.sTypoAscender - afm->WinMetrics.sTypoDescender);
if (afm->WinMetrics.sTypoLineGap < 0)
afm->WinMetrics.sTypoLineGap = 0;
return TRUE;
cleanup_afm: /* handle fatal or non-fatal errors */
HeapFree(PSDRV_Heap, 0, afm);
*p_afm = NULL;
return retval;
}
