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oleaut32: Fixed initial cyLogical value in IFont constructor. Fixed get_Size to return same value as Windows.

This commit is contained in:
Peter Schellenbach 2011-03-07 16:44:38 -08:00 committed by Alexandre Julliard
parent eddffff780
commit 2ecbfbe5df
2 changed files with 73 additions and 38 deletions
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21
dlls/oleaut32/olefont.c
View File

@ -278,6 +278,11 @@ struct OLEFontImpl
LONG cyLogical;
LONG cyHimetric;
/*
* Stash realized height (pixels) from TEXTMETRIC - used in get_Size()
*/
LONG nRealHeight;
IConnectionPoint *pPropertyNotifyCP;
IConnectionPoint *pFontEventsCP;
};
@ -671,6 +676,8 @@ static void realize_font(OLEFontImpl *This)
}
GetTextMetricsW(hdc, &tm);
This->description.sCharset = tm.tmCharSet;
/* While we have it handy, stash the realized font height for use by get_Size() */
This->nRealHeight = tm.tmHeight - tm.tmInternalLeading; /* corresponds to LOGFONT lfHeight */
SelectObject(hdc, old_font);
}
}
@ -760,8 +767,14 @@ static HRESULT WINAPI OLEFontImpl_get_Size(
if(this->dirty) realize_font(this);
/*
* Convert realized font height in pixels to points descaled by current
* scaling ratio then scaled up by 10000.
*/
psize->s.Lo = MulDiv(this->nRealHeight,
this->cyHimetric * 72 * 10000,
this->cyLogical * 2540);
psize->s.Hi = 0;
psize->s.Lo = this->description.cySize.s.Lo;
return S_OK;
}
@ -1179,8 +1192,12 @@ static HRESULT WINAPI OLEFontImpl_SetRatio(
OLEFontImpl *this = impl_from_IFont(iface);
TRACE("(%p)->(%d, %d)\n", this, cyLogical, cyHimetric);
if(cyLogical == 0 || cyHimetric == 0)
return E_INVALIDARG;
this->cyLogical = cyLogical;
this->cyHimetric = cyHimetric;
this->dirty = TRUE;
return S_OK;
}
@ -2401,7 +2418,7 @@ static OLEFontImpl* OLEFontImpl_Construct(const FONTDESC *fontDesc)
*/
newObject->gdiFont = 0;
newObject->dirty = TRUE;
newObject->cyLogical = 72L;
newObject->cyLogical = GetDeviceCaps(get_dc(), LOGPIXELSY);
newObject->cyHimetric = 2540L;
newObject->pPropertyNotifyCP = NULL;
newObject->pFontEventsCP = NULL;

90
dlls/oleaut32/tests/olefont.c
View File

@ -57,8 +57,7 @@ static HRESULT (WINAPI *pOleCreateFontIndirect)(LPFONTDESC,REFIID,LPVOID*);
/* SetRatio to ratio_logical, ratio_himetric, */
/* check that resulting hfont has height hfont_height. */
/* Various checks along the way. */
static void test_ifont_sizes(LONG lo_size, LONG hi_size,
static void test_ifont_size(LONG lo_size, LONG hi_size,
LONG ratio_logical, LONG ratio_himetric,
LONG hfont_height, const char * test_name)
{
@ -69,9 +68,10 @@ static void test_ifont_sizes(LONG lo_size, LONG hi_size,
LOGFONT lf;
CY psize;
HRESULT hres;
DWORD rtnval;
fd.cbSizeofstruct = sizeof(FONTDESC);
fd.lpstrName = system_font;
fd.lpstrName = arial_font; /* using scaleable instead of bitmap font reduces errors due to font realization */
S(fd.cySize).Lo = lo_size;
S(fd.cySize).Hi = hi_size;
fd.sWeight = 0;
@ -87,33 +87,33 @@ static void test_ifont_sizes(LONG lo_size, LONG hi_size,
test_name, hres);
ok(pvObj != NULL,"%s: OCFI returns NULL.\n", test_name);
/* Read back size. Hi part was ignored. */
/* If scaling ration specified, change ratio. */
if(ratio_logical && ratio_himetric)
{
hres = IFont_SetRatio(ifnt, ratio_logical, ratio_himetric);
ok(hres == S_OK,"%s: IFont_SetRatio returns 0x%08x instead of S_OK.\n",
test_name, hres);
}
/* Read back size. */
hres = IFont_get_Size(ifnt, &psize);
ok(hres == S_OK,"%s: IFont_get_size returns 0x%08x instead of S_OK.\n",
test_name, hres);
ok(S(psize).Lo == lo_size && S(psize).Hi == 0,
"%s: get_Size: Lo=%d, Hi=%d; expected Lo=%d, Hi=0.\n",
test_name, S(psize).Lo, S(psize).Hi, lo_size);
/* Change ratio, check size unchanged. Standard is 72, 2540. */
hres = IFont_SetRatio(ifnt, ratio_logical, ratio_himetric);
ok(hres == S_OK,"%s: IFont_SR returns 0x%08x instead of S_OK.\n",
test_name, hres);
hres = IFont_get_Size(ifnt, &psize);
ok(hres == S_OK,"%s: IFont_get_size returns 0x%08x instead of S_OK.\n",
test_name, hres);
ok(S(psize).Lo == lo_size && S(psize).Hi == 0,
"%s: gS after SR: Lo=%d, Hi=%d; expected Lo=%d, Hi=0.\n",
test_name, S(psize).Lo, S(psize).Hi, lo_size);
/* Check returned size - allow for errors due to rouding & font realization. */
ok((abs(S(psize).Lo - lo_size) < 10000) && S(psize).Hi == hi_size,
"%s: IFont_get_Size: Lo=%d, Hi=%d; expected Lo=%d, Hi=%d.\n",
test_name, S(psize).Lo, S(psize).Hi, lo_size, hi_size);
/* Check hFont size with this ratio. This tests an important */
/* conversion for which MSDN is very wrong. */
/* Check hFont size. */
hres = IFont_get_hFont (ifnt, &hfont);
ok(hres == S_OK, "%s: IFont_get_hFont returns 0x%08x instead of S_OK.\n",
test_name, hres);
hres = GetObject (hfont, sizeof(LOGFONT), &lf);
ok(hres == OBJ_FONT, "got obj type %d\n", hres);
ok(lf.lfHeight == hfont_height,
rtnval = GetObject (hfont, sizeof(LOGFONT), &lf);
ok(rtnval > 0, "GetObject(hfont) failed\n");
/* Since font scaling may encounter rouding errors, allow 1 pixel deviation. */
ok(abs(lf.lfHeight - hfont_height) <= 1,
"%s: hFont has lf.lfHeight=%d, expected %d.\n",
test_name, lf.lfHeight, hfont_height);
@ -121,6 +121,37 @@ static void test_ifont_sizes(LONG lo_size, LONG hi_size,
IFont_Release(ifnt);
}
static void test_ifont_sizes(void)
{
/* Test various size operations and conversions. */
/* Add more as needed. */
/* Results of first 2 tests depend on display resolution. */
HDC hdc = GetDC(0);
LONG dpi = GetDeviceCaps(hdc, LOGPIXELSY); /* expected results depend on display DPI */
ReleaseDC(0, hdc);
if(dpi == 96) /* normal resolution display */
{
test_ifont_size(180000, 0, 0, 0, -24, "default"); /* normal font */
test_ifont_size(186000, 0, 0, 0, -25, "rounding"); /* test rounding */
} else if(dpi == 72) /* low resolution display */
{
test_ifont_size(180000, 0, 0, 0, -18, "default"); /* normal font */
test_ifont_size(186000, 0, 0, 0, -19, "rounding"); /* test rounding */
} else if(dpi == 120) /* high resolution display */
{
test_ifont_size(180000, 0, 0, 0, -30, "default"); /* normal font */
test_ifont_size(186000, 0, 0, 0, -31, "rounding"); /* test rounding */
} else
skip("Skipping resolution dependent font size tests - display resolution is %d\n", dpi);
/* Next 4 tests specify a scaling ratio, so display resolution is not a factor. */
test_ifont_size(180000, 0, 72, 2540, -18, "ratio1"); /* change ratio */
test_ifont_size(180000, 0, 144, 2540, -36, "ratio2"); /* another ratio */
test_ifont_size(180000, 0, 72, 1270, -36, "ratio3"); /* yet another ratio */
test_ifont_size(186000, 0, 72, 2540, -19, "rounding+ratio"); /* test rounding with ratio */
}
static void test_QueryInterface(void)
{
LPVOID pvObj = NULL;
@ -1094,20 +1125,7 @@ START_TEST(olefont)
test_QueryInterface();
test_type_info();
/* Test various size operations and conversions. */
/* Add more as needed. */
if (0) /* FIXME: failing tests */
{
test_ifont_sizes(180000, 0, 72, 2540, -18, "default");
test_ifont_sizes(180000, 0, 144, 2540, -36, "ratio1"); /* change ratio */
test_ifont_sizes(180000, 0, 72, 1270, -36, "ratio2"); /* 2nd part of ratio */
/* These depend on details of how IFont rounds sizes internally. */
test_ifont_sizes(0, 0, 72, 2540, 0, "zero size"); /* zero size */
test_ifont_sizes(186000, 0, 72, 2540, -19, "rounding"); /* test rounding */
}
test_ifont_sizes();
test_font_events_disp();
test_GetIDsOfNames();
test_Invoke();