From b7310c9cce95bfc9bfe135063ee0e97fbc654928 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Mon, 1 Nov 2021 16:53:51 +0800
Subject: *misc

---
 Runtime/GUI/Font.h | 56 ++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 44 insertions(+), 12 deletions(-)

(limited to 'Runtime/GUI/Font.h')

diff --git a/Runtime/GUI/Font.h b/Runtime/GUI/Font.h
index da9ef55..242bd19 100644
--- a/Runtime/GUI/Font.h
+++ b/Runtime/GUI/Font.h
@@ -4,9 +4,11 @@
 #include "Runtime/Graphics/Texture.h"
 #include "freetype.h"
 #include "Runtime/Lua/LuaHelper.h"
+#include "Runtime/Common/DataBuffer.h"
 
 #include <string>
 #include <unordered_map>
+#include <exception>
 #include <vector>
 
 //https://learnopengl.com/In-Practice/Text-Rendering
@@ -64,10 +66,30 @@ struct TextGeneratingSettings
 	int padding; // glyph相互之间的间距，防止采样的时候越界
 };
 
-class Font : public Singleton<Font>
+class FontException : public std::exception 
 {
 public:
-	void Setup(TextGeneratingSettings settings);
+    FontException(const char* what)
+        : std::exception(what)
+    {
+    }
+};
+
+enum EEncoding
+{
+    Encoding_ASCII,
+    Encoding_UTF8,
+    Encoding_UTF16,
+};
+
+// 单个字体
+class Font : public LuaBind::NativeClass<Font>
+{
+public:
+    Font(std::string path, TextGeneratingSettings setting)/*throw FontException*/;
+    Font(LuaBind::VM* vm, std::string path, TextGeneratingSettings setting)/*throw FontException*/;
+    Font(DataBuffer* db, TextGeneratingSettings setting)/*throw FontException*/;
+    Font(DataBuffer* db, LuaBind::VM* vm, std::string path, TextGeneratingSettings setting)/*throw FontException*/;
 
 	const Character* GetCharacter(character::Codepoint codepoint, int pixelSize);
 	const GlyphAtals* GetGlyphAtlas(int index);
@@ -76,31 +98,41 @@ public:
 	void RenderCharacter(character::Codepoint codepoint, int pixelSize);
 	void RenderCharacters(character::Codepoint* codepoint, int n, int pixelSize);
 
-private: 
-
+private:
 	Texture* CreateAtlas();
 	GlyphAtals* RequestAtlas(int pixelSize, Internal::Vector2 preferSize);
-
 	Internal::Rect GetRenderChartAndMove(GlyphAtals* atlas, Internal::Vector2 preferSize);
 	bool HasEnoughSpace(GlyphAtals* atlas, Internal::Vector2 preferSize);
-
 	character::Hash GetHash(character::Codepoint Codepoint, int pixelSize);
 
+    //-------------------------------------------------------------------------
+
 	std::unordered_map<character::Hash, Character> m_Characters; // 渲染完的文字
 
-	std::vector<GlyphAtals> m_Atlases; // 当前所有的atlas
-	std::unordered_map<int, GlyphAtals*> m_AtlasCache;  // 快速找到可用的atlas
+	std::vector<GlyphAtals> m_Atlases; // 当前所有的atlas，由font完全拥有所有权，所以是lightuserdata
+	std::unordered_map<int/*pixelSize*/, GlyphAtals*> m_AtlasCache;  // 快速找到可用的atlas
+
+    bool m_IsEnabled;
 
-	int m_AtlasMargin;
-	int m_GlyphPadding;
 	Internal::Vector2 m_AtlasSize;
+    int               m_AtlasMargin;
+    int               m_GlyphPadding;
 
 	FT_Library m_FTLibrary;
-	FT_Face m_FTFace;
+	FT_Face    m_FTFace;
+
+    //-------------------------------------------------------------------------
+
+    LUA_BIND_DECL_CLASS(Font);
+
+    LUA_BIND_DECL_METHOD(_New);
+    LUA_BIND_DECL_METHOD(_GetCharacter);
+    LUA_BIND_DECL_METHOD(_GetCharacters);
+    LUA_BIND_DECL_METHOD(_GetGlyphAtlas);
 
 };
 
-#define g_TextGenerator (*Font::Instance())
+//#define g_TextGenerator (*Font::Instance())
 
 namespace TextHelper
 {
-- 
cgit v1.1-26-g67d0