load font & ranges based on pc locale

1 files changed, 94 insertions, 0 deletions

diff --git a/src/fonts.cpp b/src/fonts.cpp
new file mode 100644
index 0000000..3c1c520
--- /dev/null
+++ b/src/fonts.cpp
@@ -0,0 +1,94 @@
+#include "fonts.h"
+#include "../fonts/SourceSansProRegular.h"
+#include "../fonts/GmarketSans.h"
+#include "../fonts/NotoSansJP.h"
+#include "../fonts/NotoSerifTC.h"
+#include "../fonts/NotoSansSC.h"
+#include "../fonts/NotoSansThai.h"
+#include "imgui.h"
+
+#include <stdio.h>
+
+void ts_load_fonts(float size, ts_font_range locale) {
+	ImGuiIO& io = ImGui::GetIO();
+	ImFontConfig config;
+	config.MergeMode = true;
+
+	static const ImWchar arrow_r[] =
+	{
+		0x2192, 0x2193, // → character.
+		0,
+	};
+
+	static const ImWchar triangles[] =
+	{
+		0x25B6, 0x25BC, // ▶ ▼ characters.
+		0,
+	};
+
+	// We always use Source Sans Regular for the english, cyrillic and greek alphabet.
+	// other languages will be displayed in their respective font.
+
+	ImFontGlyphRangesBuilder builder;
+	ImVector<ImWchar> ranges;
+	builder.AddRanges(arrow_r);
+	builder.AddRanges(triangles);
+
+	builder.AddRanges(io.Fonts->GetGlyphRangesDefault());
+	if (locale == FONT_RANGE_GREEK) 
+		builder.AddRanges(io.Fonts->GetGlyphRangesGreek());
+
+	if (locale == FONT_RANGE_CYRILLIC)
+		builder.AddRanges(io.Fonts->GetGlyphRangesCyrillic());
+
+	builder.BuildRanges(&ranges);
+	
+	ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(
+		SourceSansProRegular_compressed_data, 
+		SourceSansProRegular_compressed_size, 
+		size, nullptr, ranges.Data);
+
+	IM_ASSERT(font != nullptr);
+	io.FontDefault = font;
+				
+	// Fonts can be found in fonts/ folder.
+	if (locale == FONT_RANGE_KOREAN) {
+		size /= 1.5f;
+		io.Fonts->AddFontFromMemoryCompressedTTF(
+				GmarketSans_compressed_data, 
+				GmarketSans_compressed_size, 
+				size, &config, io.Fonts->GetGlyphRangesKorean());
+	}
+	else if (locale == FONT_RANGE_JAPANESE) {
+		io.Fonts->AddFontFromMemoryCompressedTTF(
+				NotoSansJP_compressed_data, 
+				NotoSansJP_compressed_size, 
+				size, &config, io.Fonts->GetGlyphRangesJapanese());
+	}
+	else if (locale == FONT_RANGE_CHINESE_FULL) {
+		io.Fonts->AddFontFromMemoryCompressedTTF(
+				NotoSerifTC_compressed_data, 
+				NotoSerifTC_compressed_size, 
+				size, &config, io.Fonts->GetGlyphRangesChineseFull());
+	}
+	else if (locale == FONT_RANGE_CHINESE_SIMPLE) {
+		io.Fonts->AddFontFromMemoryCompressedTTF(
+				NotoSansSC_compressed_data, 
+				NotoSansSC_compressed_size, 
+				size, &config, io.Fonts->GetGlyphRangesChineseSimplifiedCommon());
+	}
+	else if (locale == FONT_RANGE_THAI) {
+		io.Fonts->AddFontFromMemoryCompressedTTF(
+				NotoSansThai_compressed_data, 
+				NotoSansThai_compressed_size, 
+				size, &config, io.Fonts->GetGlyphRangesThai());
+	}
+	else if (locale == FONT_RANGE_VIETNAMESE) {
+		io.Fonts->AddFontFromMemoryCompressedTTF(
+				NotoSansJP_compressed_data, 
+				NotoSansJP_compressed_size, 
+				size, &config, io.Fonts->GetGlyphRangesVietnamese());
+	}
+
+	io.Fonts->Build();    
+}
\ No newline at end of file