1 files changed, 178 insertions, 0 deletions
diff --git a/scene/resources/dynamic_font_stb.h b/scene/resources/dynamic_font_stb.h
new file mode 100644
index 0000000000..6b72fb3703
--- /dev/null
+++ b/scene/resources/dynamic_font_stb.h
@@ -0,0 +1,178 @@
+#ifndef DYNAMICFONT_STB_H
+#define DYNAMICFONT_STB_H
+
+#ifndef FREETYPE_ENABLED
+
+#include "font.h"
+#include "stb_truetype.h"
+#include "io/resource_loader.h"
+
+
+
+class DynamicFontAtSize;
+class DynamicFont;
+
+class DynamicFontData : public Resource {
+
+	OBJ_TYPE(DynamicFontData,Resource);
+
+	bool valid;
+
+	DVector<uint8_t> font_data;
+	DVector<uint8_t>::Read fr;
+	const uint8_t* last_data_ptr;
+
+	struct KerningPairKey {
+
+		union {
+			struct {
+				uint32_t A,B;
+			};
+
+			uint64_t pair;
+		};
+
+		_FORCE_INLINE_ bool operator<(const KerningPairKey& p_r) const { return pair<p_r.pair; }
+	};
+
+	Map<KerningPairKey,int> kerning_map;
+
+
+	Map<int,DynamicFontAtSize*> size_cache;
+
+friend class DynamicFontAtSize;
+
+	stbtt_fontinfo info;
+	int ascent;
+	int descent;
+	int linegap;
+
+	void lock();
+	void unlock();
+
+friend class DynamicFont;
+
+
+	Ref<DynamicFontAtSize> _get_dynamic_font_at_size(int p_size);
+public:
+
+	void set_font_data(const DVector<uint8_t>& p_font);
+	DynamicFontData();
+	~DynamicFontData();
+};
+
+
+class DynamicFontAtSize : public Reference {
+
+	OBJ_TYPE(DynamicFontAtSize,Reference);
+
+
+	int rect_margin;
+
+	struct CharTexture {
+
+		DVector<uint8_t> imgdata;
+		int texture_size;
+		Vector<int> offsets;
+		Ref<ImageTexture> texture;
+	};
+
+	Vector<CharTexture> textures;
+
+	struct Character {
+
+		int texture_idx;
+		Rect2 rect;
+		float v_align;
+		float h_align;
+		float advance;
+
+		Character() { texture_idx=0; v_align=0; }
+	};
+
+
+
+	HashMap< CharType, Character > char_map;
+
+	_FORCE_INLINE_ void _update_char(CharType p_char);
+
+friend class DynamicFontData;
+	Ref<DynamicFontData> font;
+	float scale;
+	int size;
+
+protected:
+
+public:
+
+	float get_height() const;
+
+	float get_ascent() const;
+	float get_descent() const;
+
+	Size2 get_char_size(CharType p_char,CharType p_next=0) const;
+
+	float draw_char(RID p_canvas_item, const Point2& p_pos, const CharType& p_char,const CharType& p_next=0,const Color& p_modulate=Color(1,1,1)) const;
+
+
+
+	DynamicFontAtSize();
+	~DynamicFontAtSize();
+};
+
+///////////////
+
+class DynamicFont : public Font {
+
+	OBJ_TYPE( DynamicFont, Font );
+
+	Ref<DynamicFontData> data;
+	Ref<DynamicFontAtSize> data_at_size;
+	int size;
+
+
+protected:
+
+	static void _bind_methods();
+
+public:
+
+	void set_font_data(const Ref<DynamicFontData>& p_data);
+	Ref<DynamicFontData> get_font_data() const;
+
+	void set_size(int p_size);
+	int get_size() const;
+
+	virtual float get_height() const;
+
+	virtual float get_ascent() const;
+	virtual float get_descent() const;
+
+	virtual Size2 get_char_size(CharType p_char,CharType p_next=0) const;
+
+	virtual bool is_distance_field_hint() const;
+
+	virtual float draw_char(RID p_canvas_item, const Point2& p_pos, const CharType& p_char,const CharType& p_next=0,const Color& p_modulate=Color(1,1,1)) const;
+
+	DynamicFont();
+	~DynamicFont();
+
+};
+
+
+
+/////////////
+
+class ResourceFormatLoaderDynamicFont : public ResourceFormatLoader {
+public:
+
+	virtual RES load(const String &p_path,const String& p_original_path="",Error *r_error=NULL);
+	virtual void get_recognized_extensions(List<String> *p_extensions) const;
+	virtual bool handles_type(const String& p_type) const;
+	virtual String get_resource_type(const String &p_path) const;
+
+};
+
+
+#endif
+#endif // DYNAMICFONT_H