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Readded rowHeight(). Also tested font helper functions.

This commit is contained in:
Pietro Gagliardi 2014-12-08 16:23:55 -05:00
parent 6271fc941a
commit 59054c8932
3 changed files with 60 additions and 0 deletions
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28
wintable/new/coord.h
View File

@ -29,3 +29,31 @@ static BOOL rowColumnToClientCoord(struct table *t, rowcol rc, struct POINT *pt)
}
// TODO idealCoordToRowColumn/rowColumnToIdealCoord?
// TODO find a better place for this
static LONG rowHeight(struct table *t, HDC dc, BOOL select)
{
BOOL release;
HFONT prevfont, newfont;
TEXTMETRICW tm;
release = FALSE;
if (dc == NULL) {
dc = GetDC(t->hwnd);
if (dc == NULL)
panic("error getting Table DC for rowHeight()");
release = TRUE;
}
if (select)
prevfont = selectFont(t, dc, &newfont);
if (GetTextMetricsW(dc, &tm) == 0)
panic("error getting text metrics for rowHeight()");
if (select)
deselectFont(dc, prevfont, newfont);
if (release)
if (ReleaseDC(t->hwnd, dc) == 0)
panic("error releasing Table DC for rowHeight()");
return tm.tmHeight;
}
#define rowht(t) rowHeight(t, NULL, TRUE)

5
wintable/new/draw.h
View File

@ -5,6 +5,7 @@ static void draw(struct table *t, HDC dc, RECT cliprect, RECT client)
LRESULT i, n;
RECT r;
int x = 0;
HFONT prevfont, newfont;
n = SendMessageW(t->header, HDM_GETITEMCOUNT, 0, 0);
for (i = 0; i < n; i++) {
@ -14,6 +15,10 @@ static void draw(struct table *t, HDC dc, RECT cliprect, RECT client)
FillRect(dc, &r, GetSysColorBrush(x));
x++;
}
prevfont = selectFont(t, dc, &newfont);
TextOutW(dc, 100, 100, L"come on", 7);
deselectFont(dc, prevfont, newfont);
}
HANDLER(drawHandlers)

27
wintable/new/util.h
View File

@ -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)
}