Category : OS/2 Files
Archive : FNTLST.ZIP
Filename : FONTLIST.C
Output of file : FONTLIST.C contained in archive : FNTLST.ZIP
FONTLIST.C -- PM Font List Program (c) 1989, Charles Petzold
--------------------------------------------------------------*/
#define INCL_WIN
#define INCL_GPI
#include
#include
#include
#include
#include
#define LCID_MYFONT 1L
MRESULT EXPENTRY ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ;
int main (void)
{
static CHAR szClientClass [] = "FontList" ;
static ULONG flFrameFlags = FCF_TITLEBAR | FCF_SYSMENU |
FCF_SIZEBORDER | FCF_MINMAX |
FCF_SHELLPOSITION | FCF_TASKLIST |
FCF_VERTSCROLL ;
HAB hab ;
HMQ hmq ;
HWND hwndFrame, hwndClient ;
QMSG qmsg ;
hab = WinInitialize (0) ;
hmq = WinCreateMsgQueue (hab, 0) ;
WinRegisterClass (hab, szClientClass, ClientWndProc, CS_SIZEREDRAW, 0) ;
hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
&flFrameFlags, szClientClass, NULL,
0L, NULL, 0, &hwndClient) ;
if (hwndFrame != NULL)
{
WinSendMsg (hwndFrame, WM_SETICON,
WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE),
NULL) ;
while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
WinDispatchMsg (hab, &qmsg) ;
WinDestroyWindow (hwndFrame) ;
}
else
WinMessageBox (HWND_DESKTOP, HWND_DESKTOP,
"Cannot allocate memory for FONTMETRICS structures.",
szClientClass, 0, MB_OK | MB_ICONEXCLAMATION) ;
WinDestroyMsgQueue (hmq) ;
WinTerminate (hab) ;
return 0 ;
}
LONG RightJustifyStringAt (HPS hps, POINTL *pptl, LONG lLength, CHAR *pchText)
{
POINTL aptlTextBox[TXTBOX_COUNT] ;
GpiQueryTextBox (hps, lLength, pchText, TXTBOX_COUNT, aptlTextBox) ;
pptl->x -= aptlTextBox[TXTBOX_CONCAT].x ;
return GpiCharStringAt (hps, pptl, lLength, pchText) ;
}
VOID ShowFontMetrics (HPS hps, PFONTMETRICS pfmIn, SHORT cyClient)
{
static FONTMETRICS fm ;
static struct {
SHORT sCol ;
SHORT sRow ;
CHAR *szLabel ;
SHORT sFormat ;
VOID *pItem ;
}
disp [] =
{
0, 0, "szFamilyname" , 0, fm.szFamilyname ,
0, 1, "szFacename" , 0, fm.szFacename ,
0, 2, "idRegistry" , 1, &fm.idRegistry ,
0, 3, "usCodePage" , 2, &fm.usCodePage ,
0, 4, "lEmHeight" , 3, &fm.lEmHeight ,
0, 5, "lXHeight" , 3, &fm.lXHeight ,
0, 6, "lMaxAscender" , 3, &fm.lMaxAscender ,
0, 7, "lMaxDescender" , 3, &fm.lMaxDescender ,
0, 8, "lLowerCaseAscent" , 3, &fm.lLowerCaseAscent ,
0, 9, "lLowerCaseDescent" , 3, &fm.lLowerCaseDescent ,
0, 10, "lInternalLeading" , 3, &fm.lInternalLeading ,
0, 11, "lExternalLeading" , 3, &fm.lExternalLeading ,
0, 12, "lAveCharWidth" , 3, &fm.lAveCharWidth ,
0, 13, "lMaxCharInc" , 3, &fm.lMaxCharInc ,
0, 14, "lEmInc" , 3, &fm.lEmInc ,
0, 15, "lMaxBaselineExt" , 3, &fm.lMaxBaselineExt ,
0, 16, "sCharSlope" , 2, &fm.sCharSlope ,
1, 2, "sInlineDir" , 2, &fm.sInlineDir ,
1, 3, "sCharRot" , 2, &fm.sCharRot ,
1, 4, "usWeightClass" , 1, &fm.usWeightClass ,
1, 5, "usWidthClass" , 1, &fm.usWidthClass ,
1, 6, "sXDeviceRes" , 2, &fm.sXDeviceRes ,
1, 7, "sYDeviceRes" , 2, &fm.sYDeviceRes ,
1, 8, "sFirstChar" , 2, &fm.sFirstChar ,
1, 9, "sLastChar" , 2, &fm.sLastChar ,
1, 10, "sDefaultChar" , 2, &fm.sDefaultChar ,
1, 11, "sBreakChar" , 2, &fm.sBreakChar ,
1, 12, "sNominalPointSize" , 2, &fm.sNominalPointSize ,
1, 13, "sMinimumPointSize" , 2, &fm.sMinimumPointSize ,
1, 14, "sMaximumPointSize" , 2, &fm.sMaximumPointSize ,
1, 15, "fsType" , 1, &fm.fsType ,
1, 16, "fsDefn" , 1, &fm.fsDefn ,
2, 0, "fsSelection" , 1, &fm.fsSelection ,
2, 1, "fsCapabilities" , 1, &fm.fsCapabilities ,
2, 2, "lSubscriptXSize" , 3, &fm.lSubscriptXSize ,
2, 3, "lSubscriptYSize" , 3, &fm.lSubscriptYSize ,
2, 4, "lSubscriptXOffset" , 3, &fm.lSubscriptXOffset ,
2, 5, "lSubscriptYOffset" , 3, &fm.lSubscriptYOffset ,
2, 6, "lSuperscriptXSize" , 3, &fm.lSuperscriptXSize ,
2, 7, "lSuperscriptYSize" , 3, &fm.lSuperscriptYSize ,
2, 8, "lSuperscriptXOffset", 3, &fm.lSuperscriptXOffset,
2, 9, "lSuperscriptYOffset", 3, &fm.lSuperscriptYOffset,
2, 10, "lUnderscoreSize" , 3, &fm.lUnderscoreSize ,
2, 11, "lUnderscorePosition", 3, &fm.lUnderscorePosition,
2, 12, "lStrikeoutSize" , 3, &fm.lStrikeoutSize ,
2, 13, "lStrikeoutPosition" , 3, &fm.lStrikeoutPosition ,
2, 14, "sKerningPairs" , 2, &fm.sKerningPairs ,
2, 15, "sReserved" , 2, &fm.sReserved ,
2, 16, "lMatch" , 3, &fm.lMatch
} ;
CHAR szBuffer [32] ;
INT i ;
LONG cxChar, cyChar, cyDesc ;
POINTL ptl ;
GpiQueryFontMetrics (hps, (LONG) sizeof fm, &fm) ;
cxChar = fm.lAveCharWidth ;
cyChar = fm.lMaxBaselineExt ;
cyDesc = fm.lMaxDescender ;
fm = *pfmIn ;
for (i = 0 ; i < sizeof disp / sizeof disp[0] ; i++)
{
ptl.x = 32 * cxChar * disp[i].sCol ;
ptl.y = cyClient - cyChar * (1 + disp[i].sRow) + cyDesc ;
GpiCharStringAt (hps, &ptl, (LONG) strlen (disp[i].szLabel),
disp[i].szLabel) ;
switch (disp[i].sFormat)
{
case 0: // CHAR
ptl.x += 20 * cxChar ;
GpiCharStringAt (hps, &ptl,
(LONG) strlen (disp[i].pItem),
disp[i].pItem) ;
break ;
case 1: // USHORT
ptl.x += 30 * cxChar ;
RightJustifyStringAt (hps, &ptl,
(LONG) sprintf (szBuffer, "%u",
* (USHORT *) disp[i].pItem),
szBuffer) ;
break ;
case 2: // SHORT
ptl.x += 30 * cxChar ;
RightJustifyStringAt (hps, &ptl,
(LONG) sprintf (szBuffer, "%u",
* (SHORT *) disp[i].pItem),
szBuffer) ;
break ;
case 3: // LONG
ptl.x += 30 * cxChar ;
RightJustifyStringAt (hps, &ptl,
(LONG) sprintf (szBuffer, "%u",
* (LONG *) disp[i].pItem),
szBuffer) ;
break ;
}
}
}
MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
{
static FATTRS fat ;
static HWND hwndVScroll ;
static FONTMETRICS *pfm ;
static SHORT cxClient, cyClient ;
static USHORT usNumberFonts, usCurrentFont ;
HPS hps ;
LONG lRequestFonts, lNumberFonts ;
POINTL ptl ;
switch (msg)
{
case WM_CREATE:
// Get all FONTMETRICS structures in pfm
hps = WinGetPS (hwnd) ;
lRequestFonts = 0 ;
lNumberFonts = GpiQueryFonts (hps, QF_PUBLIC, NULL,
&lRequestFonts, 0L, NULL) ;
if (lNumberFonts > USHRT_MAX)
return 1 ;
if (lNumberFonts * sizeof (FONTMETRICS) > UINT_MAX)
return 1 ;
pfm = malloc ((UINT) (lNumberFonts * sizeof (FONTMETRICS))) ;
if (pfm == NULL)
return 1 ;
GpiQueryFonts (hps, QF_PUBLIC, NULL, &lNumberFonts,
(LONG) sizeof (FONTMETRICS), pfm) ;
usNumberFonts = (USHORT) lNumberFonts ;
WinReleasePS (hps) ;
// Initialize scroll bar
hwndVScroll = WinWindowFromID (
WinQueryWindow (hwnd, QW_PARENT, FALSE),
FID_VERTSCROLL) ;
WinSendMsg (hwndVScroll, SBM_SETSCROLLBAR,
MPFROM2SHORT (usCurrentFont, 0),
MPFROM2SHORT (0, usNumberFonts - 1)) ;
return 0 ;
case WM_SIZE:
cxClient = SHORT1FROMMP (mp2) ;
cyClient = SHORT2FROMMP (mp2) ;
return 0 ;
case WM_CHAR:
return WinSendMsg (hwndVScroll, msg, mp1, mp2) ;
case WM_VSCROLL:
switch (SHORT2FROMMP (mp2))
{
case SB_LINEUP:
usCurrentFont -= 1 ;
break ;
case SB_LINEDOWN:
usCurrentFont += 1 ;
break ;
case SB_PAGEUP:
usCurrentFont -= 10 ;
break ;
case SB_PAGEDOWN:
usCurrentFont += 10 ;
break ;
case SB_SLIDERPOSITION:
usCurrentFont = SHORT1FROMMP (mp2) ;
break ;
default:
return 0 ;
}
usCurrentFont = max (0, min (usCurrentFont, usNumberFonts - 1));
if (usCurrentFont != (USHORT) WinSendMsg (hwndVScroll,
SBM_QUERYPOS, NULL, NULL))
{
WinSendMsg (hwndVScroll, SBM_SETPOS,
MPFROM2SHORT (usCurrentFont, 0), NULL) ;
WinInvalidateRect (hwnd, NULL, FALSE) ;
}
return 0 ;
case WM_PAINT:
hps = WinBeginPaint (hwnd, NULL, NULL) ;
GpiErase (hps) ;
ShowFontMetrics (hps, pfm + usCurrentFont, cyClient) ;
fat.usRecordLength = sizeof fat ;
fat.lMatch = pfm[usCurrentFont].lMatch ;
fat.fsSelection = 0 ;
strcpy (fat.szFacename, pfm[usCurrentFont].szFacename) ;
GpiCreateLogFont (hps, NULL, LCID_MYFONT, &fat) ;
GpiSetCharSet (hps, LCID_MYFONT) ;
ptl.x = 0 ;
ptl.y = pfm[usCurrentFont].lMaxDescender ;
GpiCharStringAt (hps, &ptl,
pfm[usCurrentFont].fsDefn & 1 ? 6L : 52L,
"AaBbCcDdEeFfGgHhIiJjKkLlMm"
"NnOoPpQqRrSsTtUuVvWwXxYyZz") ;
GpiSetCharSet (hps, LCID_DEFAULT) ;
GpiDeleteSetId (hps, LCID_MYFONT) ;
WinEndPaint (hps) ;
return 0 ;
case WM_DESTROY:
free (pfm) ;
return 0 ;
}
return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
}
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