U ovoj ćemo temi istražiti kako dobiti metriku fonta pomoću C++. Mjerne vrijednosti fonta uključuju informacije o glifovima u datoteci fonta. Možete jednostavno izdvojiti metriku fonta koristeći C++ s nekoliko API poziva jer inače dobivanje informacija o metrici fonta nije tako jednostavno.
Koraci za dobivanje metrike fonta pomoću C++
- Instalirajte biblioteku Aspose.Font for C++ pomoću alata NuGet Package Manager
- Uključite referencu na prostor imena Aspose::Font
- Napravi objekt klase FontDefinition
- Inicijalizirajte objekt klase Type1Font
- Dobijte različita svojstva metrike fonta
Možete izdvojiti metriku fonta koristeći C++ u nekoliko jednostavnih API poziva. Sve što trebate je pristupiti instanci klase FontDefinition i čitati metriku fonta pomoću C++.
Kod za čitanje metrike fonta pomoću C++
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| #pragma once | |
| #include <cstdint> | |
| #include <stdio.h> | |
| #include <system/console.h> | |
| #include <system/string.h> | |
| #include <system/shared_ptr.h> | |
| #include <system/io/file.h> | |
| #include <system/exceptions.h> | |
| #include <Aspose.Font.Cpp/src/Sources/FontFileDefinition.h> | |
| #include <Aspose.Font.Cpp/src/Sources/FontDefinition.h> | |
| #include <Aspose.Font.Cpp/src/Sources/FileSystemStreamSource.h> | |
| #include <Aspose.Font.Cpp/src/Sources/ByteContentStreamSource.h> | |
| #include <Aspose.Font.Cpp/src/FontType.h> | |
| #include <Aspose.Font.Cpp/src/Font.h> | |
| #include <Aspose.Font.Cpp/src/Cff/CffFont.h> | |
| #include <Aspose.Font.Cpp/src/License.h> | |
| #include <Aspose.Font.Cpp/src/Type1/Type1Font.h> | |
| #include <Aspose.Font.Cpp/src/Font.h> | |
| #include <Aspose.Font.Cpp/src/IFontMetrics.h> | |
| using namespace System; | |
| using namespace Aspose::Font; | |
| using namespace Aspose::Font::Type1; | |
| using namespace Aspose::Font::Cff; | |
| using namespace Aspose::Font::Sources; | |
| class GetFontMetricsEx { | |
| public: | |
| static void GetFontMetricsInfo() | |
| { | |
| // Initialize license object of Aspose.PUB to convert PUB to PDF | |
| auto Fontslicense = System::MakeObject<Aspose::Font::License>(); | |
| // Set license | |
| Fontslicense->SetLicense(u"Aspose.Total.NET.lic"); | |
| //Font file name with full path | |
| System::String fileName = u"courier.pfb"; | |
| System::SharedPtr<FontDefinition> fd = | |
| System::MakeObject<FontDefinition>(Aspose::Font::FontType::Type1, | |
| System::MakeObject<FontFileDefinition>(u"pfb", System::MakeObject<FileSystemStreamSource>(fileName))); | |
| System::SharedPtr<Type1Font> font = | |
| System::DynamicCast_noexcept<Aspose::Font::Type1::Type1Font>(Aspose::Font::Font::Open(fd)); | |
| System::String name = font->get_FontName(); | |
| System::Console::WriteLine(System::String(u"Font name: ") + name); | |
| System::Console::WriteLine(System::String(u"Glyph count: ") + font->get_NumGlyphs()); | |
| System::String metrics = System::String::Format(u"Font metrics: ascender - {0}, descender - {1}, typo ascender = {2}, typo descender = {3}, UnitsPerEm = {4}", | |
| font->get_Metrics()->get_Ascender(), font->get_Metrics()->get_Descender(), font->get_Metrics()->get_TypoAscender(), | |
| font->get_Metrics()->get_TypoDescender(), font->get_Metrics()->get_UnitsPerEM()); | |
| System::Console::WriteLine(metrics); | |
| } | |
| }; |
Prethodno smo naučili kako dobiti metriku fonta u C#. Međutim, u ovoj smo temi implementirali kako izdvojiti metriku fonta pomoću C++.
