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Fix for loading collection(.ttc) from font dialog --> HFONT

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This commit is contained in:
Filip Sykala 2021-09-29 17:35:58 +02:00
parent a8f0d4a9e1
commit cfcf0dfcd2
1 changed files with 8 additions and 4 deletions
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12
src/libslic3r/Emboss.cpp
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@ -398,18 +398,22 @@ std::optional<Emboss::Font> Emboss::load_font(HFONT hfont)
return {};
}
// To retrieve the data from the beginning of the file for TrueType
// Collection files specify 'ttcf' (0x66637474).
DWORD dwTable = 0x66637474;
DWORD dwOffset = 0;
::SelectObject(hdc, hfont);
size_t size = ::GetFontData(hdc, 0, 0, NULL, 0);
if (size == 0) {
size_t size = ::GetFontData(hdc, dwTable, dwOffset, NULL, 0);
if (size == 0 || size == GDI_ERROR) {
std::cerr << "HFONT doesn't have size.";
::DeleteDC(hdc);
return {};
}
std::vector<unsigned char> buffer(size);
size_t loaded_size = ::GetFontData(hdc, 0, 0, buffer.data(), size);
size_t loaded_size = ::GetFontData(hdc, dwTable, dwOffset, buffer.data(), size);
::DeleteDC(hdc);
if (size != loaded_size) {
std::cerr << "Different loaded(from HFONT) data size.";
return {};