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authorchai <chaifix@163.com>2021-11-01 16:53:51 +0800
committerchai <chaifix@163.com>2021-11-01 16:53:51 +0800
commitb7310c9cce95bfc9bfe135063ee0e97fbc654928 (patch)
tree459d37f0acd9b9dd6719b71d1ecc8620dc1f5fef /Runtime/GUI/Font.h
parent4dead522e513ffd326101b790b2129595f72ff42 (diff)
*misc
Diffstat (limited to 'Runtime/GUI/Font.h')
-rw-r--r--Runtime/GUI/Font.h56
1 files changed, 44 insertions, 12 deletions
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
{