diff options
Diffstat (limited to 'wintable/new/util.h')
| -rw-r--r-- | wintable/new/util.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/wintable/new/util.h b/wintable/new/util.h index dc51605..d2f18fb 100644 --- a/wintable/new/util.h +++ b/wintable/new/util.h @@ -46,3 +46,30 @@ static void tableFree(void *p, const char *panicMessage) if (LocalFree((HLOCAL) p) != NULL) panic(panicMessage); } + +// font selection + +static HFONT selectFont(struct table *t, HDC dc, HFONT *newfont) +{ + HFONT prevfont; + + // copy it in casse we get a WM_SETFONT before this call's respective deselectFont() call + *newfont = t->font; + if (*newfont == NULL) { + // get it on demand in the (unlikely) event it changes while this Table is alive + *newfont = GetStockObject(SYSTEM_FONT); + if (*newfont == NULL) + panic("error getting default font for selecting into Table DC"); + } + prevfont = (HFONT) SelectObject(dc, *newfont); + if (prevfont == NULL) + panic("error selecting Table font into Table DC"); + return prevfont; +} + +static void deselectFont(HDC dc, HFONT prevfont, HFONT newfont) +{ + if (SelectObject(dc, prevfont) != newfont) + panic("error deselecting Table font from Table DC"); + // doin't delete newfont here, even if it is the system font (see http://msdn.microsoft.com/en-us/library/windows/desktop/dd144925%28v=vs.85%29.aspx) +} |