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Sweden-Number/dlls/gdi/tests/font.c

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/*
* Unit test suite for fonts
*
* Copyright 2002 Mike McCormack
* Copyright 2004 Dmitry Timoshkov
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <assert.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "wine/test.h"
static void check_font(const char* test, const LOGFONTA* lf, HFONT hfont)
{
LOGFONTA getobj_lf;
int ret, minlen = 0;
if (!hfont)
return;
ret = GetObject(hfont, sizeof(getobj_lf), &getobj_lf);
/* NT4 tries to be clever and only returns the minimum length */
while (lf->lfFaceName[minlen] && minlen < LF_FACESIZE-1)
minlen++;
minlen += FIELD_OFFSET(LOGFONTA, lfFaceName) + 1;
ok(ret == sizeof(LOGFONTA) || ret == minlen, "%s: GetObject returned %d\n", test, ret);
ok(!memcmp(&lf, &lf, FIELD_OFFSET(LOGFONTA, lfFaceName)), "%s: fonts don't match\n", test);
ok(!lstrcmpA(lf->lfFaceName, getobj_lf.lfFaceName),
"%s: font names don't match: %s != %s\n", test, lf->lfFaceName, getobj_lf.lfFaceName);
}
static HFONT create_font(const char* test, const LOGFONTA* lf)
{
HFONT hfont = CreateFontIndirectA(lf);
ok(hfont != 0, "%s: CreateFontIndirect failed\n", test);
if (hfont)
check_font(test, lf, hfont);
return hfont;
}
static void test_logfont(void)
{
LOGFONTA lf;
HFONT hfont;
memset(&lf, 0, sizeof lf);
lf.lfCharSet = ANSI_CHARSET;
lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
lf.lfWeight = FW_DONTCARE;
lf.lfHeight = 16;
lf.lfWidth = 16;
lf.lfQuality = DEFAULT_QUALITY;
lstrcpyA(lf.lfFaceName, "Arial");
hfont = create_font("Arial", &lf);
DeleteObject(hfont);
memset(&lf, 'A', sizeof(lf));
hfont = CreateFontIndirectA(&lf);
ok(hfont != 0, "CreateFontIndirectA with strange LOGFONT failed\n");
lf.lfFaceName[LF_FACESIZE - 1] = 0;
check_font("AAA...", &lf, hfont);
DeleteObject(hfont);
}
static INT CALLBACK font_enum_proc(const LOGFONT *elf, const TEXTMETRIC *ntm, DWORD type, LPARAM lParam)
{
if (type & RASTER_FONTTYPE)
{
LOGFONT *lf = (LOGFONT *)lParam;
*lf = *elf;
return 0; /* stop enumeration */
}
return 1; /* continue enumeration */
}
static void test_font_metrics(HDC hdc, HFONT hfont, const char *test_str,
INT test_str_len, const TEXTMETRICA *tm_orig,
const SIZE *size_orig, INT width_orig,
INT scale_x, INT scale_y)
{
HFONT old_hfont;
TEXTMETRICA tm;
SIZE size;
INT width;
if (!hfont)
return;
old_hfont = SelectObject(hdc, hfont);
GetTextMetricsA(hdc, &tm);
ok(tm.tmHeight == tm_orig->tmHeight * scale_y, "%ld != %ld\n", tm.tmHeight, tm_orig->tmHeight * scale_y);
ok(tm.tmAscent == tm_orig->tmAscent * scale_y, "%ld != %ld\n", tm.tmAscent, tm_orig->tmAscent * scale_y);
ok(tm.tmDescent == tm_orig->tmDescent * scale_y, "%ld != %ld\n", tm.tmDescent, tm_orig->tmDescent * scale_y);
ok(tm.tmAveCharWidth == tm_orig->tmAveCharWidth * scale_x, "%ld != %ld\n", tm.tmAveCharWidth, tm_orig->tmAveCharWidth * scale_x);
GetTextExtentPoint32A(hdc, test_str, test_str_len, &size);
ok(size.cx == size_orig->cx * scale_x, "%ld != %ld\n", size.cx, size_orig->cx * scale_x);
ok(size.cy == size_orig->cy * scale_y, "%ld != %ld\n", size.cy, size_orig->cy * scale_y);
GetCharWidthA(hdc, 'A', 'A', &width);
ok(width == width_orig * scale_x, "%d != %d\n", width, width_orig * scale_x);
SelectObject(hdc, old_hfont);
}
/* see whether GDI scales bitmap font metrics */
static void test_bitmap_font(void)
{
static const char test_str[11] = "Test String";
HDC hdc;
LOGFONTA bitmap_lf;
HFONT hfont, old_hfont;
TEXTMETRICA tm_orig;
SIZE size_orig;
INT ret, i, width_orig, height_orig;
hdc = GetDC(0);
/* "System" has only 1 pixel size defined, otherwise the test breaks */
ret = EnumFontFamiliesA(hdc, "System", font_enum_proc, (LPARAM)&bitmap_lf);
if (ret)
{
ReleaseDC(0, hdc);
trace("no bitmap fonts were found, skipping the test\n");
return;
}
trace("found bitmap font %s, height %ld\n", bitmap_lf.lfFaceName, bitmap_lf.lfHeight);
height_orig = bitmap_lf.lfHeight;
hfont = create_font("bitmap", &bitmap_lf);
old_hfont = SelectObject(hdc, hfont);
ok(GetTextMetricsA(hdc, &tm_orig), "GetTextMetricsA failed\n");
ok(GetTextExtentPoint32A(hdc, test_str, sizeof(test_str), &size_orig), "GetTextExtentPoint32A failed\n");
ok(GetCharWidthA(hdc, 'A', 'A', &width_orig), "GetCharWidthA failed\n");
SelectObject(hdc, old_hfont);
DeleteObject(hfont);
/* test fractional scaling */
for (i = 1; i < height_orig; i++)
{
hfont = create_font("fractional", &bitmap_lf);
test_font_metrics(hdc, hfont, test_str, sizeof(test_str), &tm_orig, &size_orig, width_orig, 1, 1);
DeleteObject(hfont);
}
/* test integer scaling 3x2 */
bitmap_lf.lfHeight = height_orig * 2;
bitmap_lf.lfWidth *= 3;
hfont = create_font("3x2", &bitmap_lf);
todo_wine
{
test_font_metrics(hdc, hfont, test_str, sizeof(test_str), &tm_orig, &size_orig, width_orig, 3, 2);
}
DeleteObject(hfont);
/* test integer scaling 3x3 */
bitmap_lf.lfHeight = height_orig * 3;
bitmap_lf.lfWidth = 0;
hfont = create_font("3x3", &bitmap_lf);
todo_wine
{
test_font_metrics(hdc, hfont, test_str, sizeof(test_str), &tm_orig, &size_orig, width_orig, 3, 3);
}
DeleteObject(hfont);
ReleaseDC(0, hdc);
}
static INT CALLBACK find_font_proc(const LOGFONT *elf, const TEXTMETRIC *ntm, DWORD type, LPARAM lParam)
{
LOGFONT *lf = (LOGFONT *)lParam;
if (elf->lfHeight == lf->lfHeight && !strcmp(elf->lfFaceName, lf->lfFaceName))
{
*lf = *elf;
return 0; /* stop enumeration */
}
return 1; /* continue enumeration */
}
static void test_bitmap_font_metrics(void)
{
static const struct font_data
{
const char face_name[LF_FACESIZE];
int weight, height, ascent, descent, int_leading, ext_leading;
int ave_char_width, max_char_width;
} fd[] =
{
{ "MS Sans Serif", FW_NORMAL, 13, 11, 2, 2, 0, 5, 11 },
{ "MS Sans Serif", FW_NORMAL, 16, 13, 3, 3, 0, 7, 14 },
{ "MS Sans Serif", FW_NORMAL, 20, 16, 4, 4, 0, 8, 16 },
{ "MS Sans Serif", FW_NORMAL, 24, 19, 5, 6, 0, 9, 20 },
{ "MS Sans Serif", FW_NORMAL, 29, 23, 6, 5, 0, 12, 25 },
{ "MS Sans Serif", FW_NORMAL, 37, 29, 8, 5, 0, 16, 32 },
{ "MS Serif", FW_NORMAL, 10, 8, 2, 2, 0, 5, 8 },
{ "MS Serif", FW_NORMAL, 11, 9, 2, 2, 0, 5, 9 },
{ "MS Serif", FW_NORMAL, 13, 11, 2, 2, 0, 5, 12 },
{ "MS Serif", FW_NORMAL, 16, 13, 3, 3, 0, 6, 16 },
{ "MS Serif", FW_NORMAL, 19, 15, 4, 3, 0, 8, 19 },
{ "MS Serif", FW_NORMAL, 21, 16, 5, 3, 0, 9, 23 },
{ "MS Serif", FW_NORMAL, 27, 21, 6, 3, 0, 12, 27 },
{ "MS Serif", FW_NORMAL, 35, 27, 8, 3, 0, 16, 34 },
{ "Courier", FW_NORMAL, 13, 11, 2, 0, 0, 8, 8 },
{ "Courier", FW_NORMAL, 16, 13, 3, 0, 0, 9, 9 },
{ "Courier", FW_NORMAL, 20, 16, 4, 0, 0, 12, 12 },
{ "System", FW_BOLD, 16, 13, 3, 3, 0, 7, 15 },
{ "Small Fonts", FW_NORMAL, 3, 2, 1, 0, 0, 1, 2 },
{ "Small Fonts", FW_NORMAL, 5, 4, 1, 1, 0, 3, 4 },
{ "Small Fonts", FW_NORMAL, 6, 5, 1, 1, 0, 3, 13 },
{ "Small Fonts", FW_NORMAL, 8, 7, 1, 1, 0, 4, 7 },
{ "Small Fonts", FW_NORMAL, 10, 8, 2, 2, 0, 4, 8 },
{ "Small Fonts", FW_NORMAL, 11, 9, 2, 2, 0, 5, 9 }
/* FIXME: add "Fixedsys", "Terminal" */
};
HDC hdc;
LOGFONT lf;
HFONT hfont, old_hfont;
TEXTMETRIC tm;
INT ret, i;
hdc = CreateCompatibleDC(0);
assert(hdc);
for (i = 0; i < sizeof(fd)/sizeof(fd[0]); i++)
{
memset(&lf, 0, sizeof(lf));
lf.lfHeight = fd[i].height;
strcpy(lf.lfFaceName, fd[i].face_name);
ret = EnumFontFamilies(hdc, fd[i].face_name, find_font_proc, (LPARAM)&lf);
if (ret)
{
trace("font %s height %d not found\n", fd[i].face_name, fd[i].height);
continue;
}
trace("found font %s, height %ld\n", lf.lfFaceName, lf.lfHeight);
hfont = create_font(lf.lfFaceName, &lf);
old_hfont = SelectObject(hdc, hfont);
ok(GetTextMetrics(hdc, &tm), "GetTextMetrics error %ld\n", GetLastError());
ok(tm.tmWeight == fd[i].weight, "%s(%d): tm.tmWeight %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmWeight, fd[i].weight);
ok(tm.tmHeight == fd[i].height, "%s(%d): tm.tmHeight %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmHeight, fd[i].height);
ok(tm.tmAscent == fd[i].ascent, "%s(%d): tm.tmAscent %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmAscent, fd[i].ascent);
ok(tm.tmDescent == fd[i].descent, "%s(%d): tm.tmDescent %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmDescent, fd[i].descent);
ok(tm.tmInternalLeading == fd[i].int_leading, "%s(%d): tm.tmInternalLeading %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmInternalLeading, fd[i].int_leading);
ok(tm.tmExternalLeading == fd[i].ext_leading, "%s(%d): tm.tmExternalLeading %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmExternalLeading, fd[i].ext_leading);
ok(tm.tmAveCharWidth == fd[i].ave_char_width, "%s(%d): tm.tmAveCharWidth %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmAveCharWidth, fd[i].ave_char_width);
ok(tm.tmMaxCharWidth == fd[i].max_char_width, "%s(%d): tm.tmMaxCharWidth %ld != %d\n", fd[i].face_name, fd[i].height, tm.tmMaxCharWidth, fd[i].max_char_width);
SelectObject(hdc, old_hfont);
DeleteObject(hfont);
}
DeleteDC(hdc);
}
static void test_GdiGetCharDimensions(void)
{
HDC hdc;
TEXTMETRICW tm;
LONG ret;
SIZE size;
LONG avgwidth, height;
static const char szAlphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
typedef LONG (WINAPI *fnGdiGetCharDimensions)(HDC hdc, LPTEXTMETRICW lptm, LONG *height);
fnGdiGetCharDimensions GdiGetCharDimensions = (fnGdiGetCharDimensions)GetProcAddress(LoadLibrary("gdi32"), "GdiGetCharDimensions");
if (!GdiGetCharDimensions) return;
hdc = CreateCompatibleDC(NULL);
GetTextExtentPoint(hdc, szAlphabet, strlen(szAlphabet), &size);
avgwidth = ((size.cx / 26) + 1) / 2;
ret = GdiGetCharDimensions(hdc, &tm, &height);
ok(ret == avgwidth, "GdiGetCharDimensions should have returned width of %ld instead of %ld\n", avgwidth, ret);
ok(height == tm.tmHeight, "GdiGetCharDimensions should have set height to %ld instead of %ld\n", tm.tmHeight, height);
ret = GdiGetCharDimensions(hdc, &tm, NULL);
ok(ret == avgwidth, "GdiGetCharDimensions should have returned width of %ld instead of %ld\n", avgwidth, ret);
ret = GdiGetCharDimensions(hdc, NULL, NULL);
ok(ret == avgwidth, "GdiGetCharDimensions should have returned width of %ld instead of %ld\n", avgwidth, ret);
height = 0;
ret = GdiGetCharDimensions(hdc, NULL, &height);
ok(ret == avgwidth, "GdiGetCharDimensions should have returned width of %ld instead of %ld\n", avgwidth, ret);
ok(height == size.cy, "GdiGetCharDimensions should have set height to %ld instead of %ld\n", size.cy, height);
DeleteDC(hdc);
}
static void test_GetCharABCWidthsW(void)
{
BOOL ret;
ABC abc[1];
typedef BOOL (WINAPI *fnGetCharABCWidthsW)(HDC hdc, UINT first, UINT last, LPABC abc);
fnGetCharABCWidthsW GetCharABCWidthsW = (fnGetCharABCWidthsW)GetProcAddress(LoadLibrary("gdi32"), "GetCharABCWidthsW");
if (!GetCharABCWidthsW) return;
ret = GetCharABCWidthsW(NULL, 'a', 'a', abc);
ok(!ret, "GetCharABCWidthsW should have returned FALSE\n");
}
static void test_text_extents(void)
{
static const WCHAR wt[] = {'O','n','e','\n','t','w','o',' ','3',0};
LPINT extents;
INT i, len, fit1, fit2;
LOGFONTA lf;
TEXTMETRICA tm;
HDC hdc;
HFONT hfont;
SIZE sz;
SIZE sz1, sz2;
memset(&lf, 0, sizeof(lf));
strcpy(lf.lfFaceName, "Arial");
lf.lfHeight = 20;
hfont = CreateFontIndirectA(&lf);
hdc = GetDC(0);
hfont = SelectObject(hdc, hfont);
GetTextMetricsA(hdc, &tm);
GetTextExtentPointA(hdc, "o", 1, &sz);
ok(sz.cy == tm.tmHeight, "cy %ld tmHeight %ld\n", sz.cy, tm.tmHeight);
len = lstrlenW(wt);
extents = HeapAlloc(GetProcessHeap(), 0, len * sizeof extents[0]);
memset(extents, 0, len * sizeof extents[0]);
extents[0] = 1; /* So that the increasing sequence test will fail
if the extents array is untouched. */
GetTextExtentExPointW(hdc, wt, len, 32767, &fit1, extents, &sz1);
GetTextExtentPointW(hdc, wt, len, &sz2);
ok(sz1.cx == sz2.cx && sz1.cy == sz2.cy,
"results from GetTextExtentExPointW and GetTextExtentPointW differ\n");
for (i = 1; i < len; ++i)
ok(extents[i-1] <= extents[i],
"GetTextExtentExPointW generated a non-increasing sequence of partial extents (at position %d)\n",
i);
ok(extents[len-1] == sz1.cx, "GetTextExtentExPointW extents and size don't match\n");
ok(0 <= fit1 && fit1 <= len, "GetTextExtentExPointW generated illegal value %d for fit\n", fit1);
ok(0 < fit1, "GetTextExtentExPointW says we can't even fit one letter in 32767 logical units\n");
GetTextExtentExPointW(hdc, wt, len, extents[2], &fit2, NULL, &sz2);
ok(sz1.cx == sz2.cx && sz1.cy == sz2.cy, "GetTextExtentExPointW returned different sizes for the same string\n");
ok(fit2 == 3, "GetTextExtentExPointW extents isn't consistent with fit\n");
GetTextExtentExPointW(hdc, wt, len, extents[2]-1, &fit2, NULL, &sz2);
ok(fit2 == 2, "GetTextExtentExPointW extents isn't consistent with fit\n");
GetTextExtentExPointW(hdc, wt, 2, 0, NULL, extents + 2, &sz2);
ok(extents[0] == extents[2] && extents[1] == extents[3],
"GetTextExtentExPointW with lpnFit == NULL returns incorrect results\n");
GetTextExtentExPointW(hdc, wt, 2, 0, NULL, NULL, &sz1);
ok(sz1.cx == sz2.cx && sz1.cy == sz2.cy,
"GetTextExtentExPointW with lpnFit and alpDx both NULL returns incorrect results\n");
HeapFree(GetProcessHeap(), 0, extents);
SelectObject(hdc, hfont);
DeleteObject(hfont);
ReleaseDC(NULL, hdc);
}
START_TEST(font)
{
test_logfont();
test_bitmap_font();
test_bitmap_font_metrics();
test_GdiGetCharDimensions();
test_GetCharABCWidthsW();
test_text_extents();
}
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