text.c File Reference

#include "precomp.h"

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Functions
BOOL	_TextOutW (HDC hdc, int x, int y, LPCWSTR lp, UINT cc)
void	xxxPSMTextOut (HDC hdc, int xLeft, int yTop, LPWSTR lpsz, int cch, DWORD dwFlags)

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Function Documentation

BOOL _TextOutW (  HDC  hdc, int  x, int  y, LPCWSTR  lp, UINT  cc )

Definition at line 1201 of file kernel/server.c. References BOOL, and NULL. Referenced by xxxPSMTextOut(). { return GreExtTextOutW(hdc, x, y, 0, NULL, (LPWSTR)lp, cc, NULL); }

void xxxPSMTextOut (  HDC  hdc, int  xLeft, int  yTop, LPWSTR  lpsz, int  cch, DWORD  dwFlags )

Definition at line 41 of file kernel/text.c. References _GetTextMetricsW(), _TextOutW(), CALL_LPK, dwFlags, GetPrefixCount(), NULL, PtiCurrentShared, RtlInitUnicodeString(), SetRect(), and xxxClientPSMTextOut(). Referenced by DT_InitDrawTextInfo(), xxxDrawMenuBarUnderlines(), xxxDrawMenuItemText(), and xxxRealDrawMenuItem(). { int cx; LONG textsize, result; /* * In the kernel we have a limited amount of stack. So it should be a stack * variable in user mode and static in kernel mode where it is thread safe * since we are in the crit section. */ static WCHAR achWorkBuffer[255]; WCHAR *pchOut = achWorkBuffer; TEXTMETRICW textMetric; SIZE size; RECT rc; COLORREF color; PTHREADINFO ptiCurrent = PtiCurrentShared(); if (CALL_LPK(ptiCurrent)) { /* * A user mode LPK is installed for layout and shaping. * Perform callback and return. */ UNICODE_STRING ustrStr; RtlInitUnicodeString(&ustrStr, lpsz); xxxClientPSMTextOut(hdc, xLeft, yTop, &ustrStr, cch, dwFlags); return; } if (cch > sizeof(achWorkBuffer)/sizeof(WCHAR)) { pchOut = (WCHAR*)UserAllocPool((cch+1) * sizeof(WCHAR), TAG_RTL); if (pchOut == NULL) return; } result = GetPrefixCount(lpsz, cch, pchOut, cch); if (!(dwFlags & DT_PREFIXONLY)) { _TextOutW(hdc, xLeft, yTop, pchOut, cch - HIWORD(result)); } /* * Any true prefix characters to underline? */ if (LOWORD(result) == 0xFFFF || dwFlags & DT_HIDEPREFIX) { if (pchOut != achWorkBuffer) UserFreePool(pchOut); return; } if (!_GetTextMetricsW(hdc, &textMetric)) { textMetric.tmOverhang = 0; textMetric.tmAscent = 0; } /* * For proportional fonts, find starting point of underline. */ if (LOWORD(result) != 0) { /* * How far in does underline start (if not at 0th byte.). */ GreGetTextExtentW(hdc, (LPWSTR)pchOut, LOWORD(result), &size, GGTE_WIN3_EXTENT); xLeft += size.cx; /* * Adjust starting point of underline if not at first char and there is * an overhang. (Italics or bold fonts.) */ xLeft = xLeft - textMetric.tmOverhang; } /* * Adjust for proportional font when setting the length of the underline and * height of text. */ GreGetTextExtentW(hdc, (LPWSTR)(pchOut + LOWORD(result)), 1, &size, GGTE_WIN3_EXTENT); textsize = size.cx; /* * Find the width of the underline character. Just subtract out the overhang * divided by two so that we look better with italic fonts. This is not * going to effect embolded fonts since their overhang is 1. */ cx = LOWORD(textsize) - textMetric.tmOverhang / 2; /* * Get height of text so that underline is at bottom. */ yTop += textMetric.tmAscent + 1; /* * Draw the underline using the foreground color. */ SetRect(&rc, xLeft, yTop, xLeft+cx, yTop+1); color = GreSetBkColor(hdc, GreGetTextColor(hdc)); GreExtTextOutW(hdc, xLeft, yTop, ETO_OPAQUE, &rc, TEXT(""), 0, NULL); GreSetBkColor(hdc, color); if (pchOut != achWorkBuffer) { UserFreePool(pchOut); } }

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