*misc

2 files changed, 121 insertions, 24 deletions

diff --git a/Runtime/GUI/Font.cpp b/Runtime/GUI/Font.cpp
index f00f33d..67a2e3b 100644
--- a/Runtime/GUI/Font.cpp
+++ b/Runtime/GUI/Font.cpp
@@ -13,21 +13,86 @@ using namespace character;
 //https://baike.baidu.com/item/%E5%9F%BA%E6%9C%AC%E5%A4%9A%E6%96%87%E7%A7%8D%E5%B9%B3%E9%9D%A2/10788078
 //https://stackoverflow.com/questions/27331819/whats-the-difference-between-a-character-a-code-point-a-glyph-and-a-grapheme
 
-void Font::Setup(TextGeneratingSettings settings)
+static std::string s_FontError;
+
+Font::Font(std::string path, TextGeneratingSettings settings)
+    : LuaBind::NativeClass<Font>()
 {
-	m_AtlasMargin = settings.margin;
-	m_GlyphPadding = settings.padding;
-	m_AtlasSize = settings.atlasSize;
+    m_AtlasMargin = settings.margin;
+    m_GlyphPadding = settings.padding;
+    m_AtlasSize = settings.atlasSize;
 
-	if (FT_Init_FreeType(&m_FTLibrary))
-	{
-		return;
-	}
+    if (FT_Init_FreeType(&m_FTLibrary))
+    {
+        s_FontError = "Init freetype error. Font path " + path;
+        throw FontException(s_FontError.c_str());
+    }
 
-	if (FT_New_Face(m_FTLibrary, "Resources/Font/Deng.ttf", 0, &m_FTFace))
-	{
-		return;
-	}
+    if (FT_New_Face(m_FTLibrary, path.c_str(), 0, &m_FTFace))
+    {
+        s_FontError = "Create freetype face error. Font path " + path;
+        throw FontException(s_FontError.c_str());
+    }
+}
+
+Font::Font(LuaBind::VM* vm, std::string path, TextGeneratingSettings settings)
+    : LuaBind::NativeClass<Font>(vm)
+{
+    m_AtlasMargin = settings.margin;
+    m_GlyphPadding = settings.padding;
+    m_AtlasSize = settings.atlasSize;
+
+    if (FT_Init_FreeType(&m_FTLibrary))
+    {
+        s_FontError = "Init freetype error. Font path " + path;
+        throw FontException(s_FontError.c_str());
+    }
+
+    if (FT_New_Face(m_FTLibrary, path.c_str(), 0, &m_FTFace))
+    {
+        s_FontError = "Create freetype face error. Font path " + path;
+        throw FontException(s_FontError.c_str());
+    }
+}
+
+Font::Font(DataBuffer* db, TextGeneratingSettings settings)
+    : LuaBind::NativeClass<Font>()
+{
+    m_AtlasMargin = settings.margin;
+    m_GlyphPadding = settings.padding;
+    m_AtlasSize = settings.atlasSize;
+
+    if (FT_Init_FreeType(&m_FTLibrary))
+    {
+        s_FontError = "Init freetype error.";
+        throw FontException(s_FontError.c_str());
+    }
+
+    if (FT_New_Memory_Face(m_FTLibrary, db->udata, db->length, 0, &m_FTFace))
+    {
+        s_FontError = "Create freetype face error.";
+        throw FontException(s_FontError.c_str());
+    }
+}
+
+Font::Font(DataBuffer* db, LuaBind::VM* vm, std::string path, TextGeneratingSettings settings)
+    : LuaBind::NativeClass<Font>(vm)
+{
+    m_AtlasMargin = settings.margin;
+    m_GlyphPadding = settings.padding;
+    m_AtlasSize = settings.atlasSize;
+
+    if (FT_Init_FreeType(&m_FTLibrary))
+    {
+        s_FontError = "Init freetype error.";
+        throw FontException(s_FontError.c_str());
+    }
+
+    if (FT_New_Memory_Face(m_FTLibrary, db->udata, db->length, 0, &m_FTFace))
+    {
+        s_FontError = "Create freetype face error.";
+        throw FontException(s_FontError.c_str());
+    }
 }
 
 character::Hash Font::GetHash(Codepoint codepoint, int pixelSize)
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
 {