void QWindowsFontEngineDirectWrite::initFontInfo(const QFontDef &request,
int dpi, IDWriteFont *font)
{
fontDef = request;
IDWriteFontFamily *fontFamily = NULL;
HRESULT hr = font->GetFontFamily(&fontFamily);
IDWriteLocalizedStrings *familyNames = NULL;
if (SUCCEEDED(hr))
hr = fontFamily->GetFamilyNames(&familyNames);
UINT32 index = 0;
if (SUCCEEDED(hr)) {
BOOL exists = false;
wchar_t localeName[LOCALE_NAME_MAX_LENGTH];
int defaultLocaleSuccess = GetUserDefaultLocaleName(localeName, LOCALE_NAME_MAX_LENGTH);
if (defaultLocaleSuccess)
hr = familyNames->FindLocaleName(localeName, &index, &exists);
if (SUCCEEDED(hr) && !exists)
hr = familyNames->FindLocaleName(L"en-us", &index, &exists);
if (!exists)
index = 0;
}
// Get the family name.
if (SUCCEEDED(hr)) {
UINT32 length = 0;
hr = familyNames->GetStringLength(index, &length);
if (SUCCEEDED(hr)) {
QVarLengthArray<wchar_t, 128> name(length+1);
hr = familyNames->GetString(index, name.data(), name.size());
if (SUCCEEDED(hr))
fontDef.family = QString::fromWCharArray(name.constData());
}
}
if (familyNames != NULL)
familyNames->Release();
if (fontFamily)
fontFamily->Release();
if (FAILED(hr))
qErrnoWarning(hr, "initFontInfo: Failed to get family name");
if (fontDef.pointSize < 0)
fontDef.pointSize = fontDef.pixelSize * 72. / dpi;
else if (fontDef.pixelSize == -1)
fontDef.pixelSize = qRound(fontDef.pointSize * dpi / 72.);
}
static void initFontInfo(QFontEngineDirectWrite *fe, const QFontDef &request,
int dpi, IDWriteFont *font)
{
fe->fontDef = request;
IDWriteFontFamily *fontFamily = NULL;
HRESULT hr = font->GetFontFamily(&fontFamily);
IDWriteLocalizedStrings *familyNames = NULL;
if (SUCCEEDED(hr))
hr = fontFamily->GetFamilyNames(&familyNames);
UINT32 index = 0;
BOOL exists = false;
wchar_t localeName[LOCALE_NAME_MAX_LENGTH];
if (SUCCEEDED(hr)) {
int defaultLocaleSuccess = GetUserDefaultLocaleName(localeName, LOCALE_NAME_MAX_LENGTH);
if (defaultLocaleSuccess)
hr = familyNames->FindLocaleName(localeName, &index, &exists);
if (SUCCEEDED(hr) && !exists)
hr = familyNames->FindLocaleName(L"en-us", &index, &exists);
}
if (!exists)
index = 0;
UINT32 length = 0;
if (SUCCEEDED(hr))
hr = familyNames->GetStringLength(index, &length);
wchar_t *name = new (std::nothrow) wchar_t[length+1];
if (name == NULL)
hr = E_OUTOFMEMORY;
// Get the family name.
if (SUCCEEDED(hr))
hr = familyNames->GetString(index, name, length + 1);
if (SUCCEEDED(hr))
fe->fontDef.family = QString::fromWCharArray(name);
delete[] name;
if (familyNames != NULL)
familyNames->Release();
if (FAILED(hr))
qErrnoWarning(hr, "initFontInfo: Failed to get family name");
if (fe->fontDef.pointSize < 0)
fe->fontDef.pointSize = fe->fontDef.pixelSize * 72. / dpi;
else if (fe->fontDef.pixelSize == -1)
fe->fontDef.pixelSize = qRound(fe->fontDef.pointSize * dpi / 72.);
}
void wmain()
{
IDWriteFactory* pDWriteFactory = NULL;
HRESULT hr = DWriteCreateFactory(
DWRITE_FACTORY_TYPE_SHARED,
__uuidof(IDWriteFactory),
reinterpret_cast<IUnknown**>(&pDWriteFactory)
);
IDWriteFontCollection* pFontCollection = NULL;
// Get the system font collection.
if (SUCCEEDED(hr))
{
hr = pDWriteFactory->GetSystemFontCollection(&pFontCollection);
}
UINT32 familyCount = 0;
// Get the number of font families in the collection.
if (SUCCEEDED(hr))
{
familyCount = pFontCollection->GetFontFamilyCount();
}
for (UINT32 i = 0; i < familyCount; ++i)
{
IDWriteFontFamily* pFontFamily = NULL;
// Get the font family.
if (SUCCEEDED(hr))
{
hr = pFontCollection->GetFontFamily(i, &pFontFamily);
}
IDWriteLocalizedStrings* pFamilyNames = NULL;
// Get a list of localized strings for the family name.
if (SUCCEEDED(hr))
{
hr = pFontFamily->GetFamilyNames(&pFamilyNames);
}
UINT32 index = 0;
BOOL exists = false;
wchar_t localeName[LOCALE_NAME_MAX_LENGTH];
if (SUCCEEDED(hr))
{
// Get the default locale for this user.
int defaultLocaleSuccess = GetUserDefaultLocaleName(localeName, LOCALE_NAME_MAX_LENGTH);
// If the default locale is returned, find that locale name, otherwise use "en-us".
if (defaultLocaleSuccess)
{
hr = pFamilyNames->FindLocaleName(localeName, &index, &exists);
}
else
{
hr = pFamilyNames->FindLocaleName(L"en-us", &index, &exists);
}
}
// If the specified locale doesn't exist, select the first on the list.
if (!exists)
index = 0;
UINT32 length = 0;
// Get the string length.
if (SUCCEEDED(hr))
{
hr = pFamilyNames->GetStringLength(index, &length);
}
// Allocate a string big enough to hold the name.
wchar_t* name = new (std::nothrow) wchar_t[length+1];
if (name == NULL)
{
hr = E_OUTOFMEMORY;
}
// Get the family name.
if (SUCCEEDED(hr))
{
hr = pFamilyNames->GetString(index, name, length+1);
}
if (SUCCEEDED(hr))
{
// Print out the family name.
wprintf(L"%s\n", name);
}
SafeRelease(&pFontFamily);
SafeRelease(&pFamilyNames);
delete [] name;
}
SafeRelease(&pFontCollection);
SafeRelease(&pDWriteFactory);
}
