From 48420e9e3f950cfe1e3ced8f8ea92d89671ae8c4 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 21 Aug 2007 15:00:20 +0000
Subject: [PATCH] Make ~Program virtual Rename Parser -> DataFile Utilize
 string codecs in Font

---
 source/font.cpp  | 30 +++++++++++++++---------------
 source/font.h    | 40 ++++++++++++++++++++++++++++------------
 source/program.h |  2 +-
 3 files changed, 44 insertions(+), 28 deletions(-)

diff --git a/source/font.cpp b/source/font.cpp
index 956acb46..2cab462c 100644
--- a/source/font.cpp
+++ b/source/font.cpp
@@ -16,12 +16,18 @@ Font::Font():
 	varray((TEXCOORD2, VERTEX2))
 { }
 
+Font::~Font()
+{
+	if(own_tex)
+		delete tex;
+}
+
 void Font::set_texture(const Texture2D &t)
 {
 	tex=&t;
 }
 
-void Font::add_glyph(wchar_t code, float x1, float y1, float x2, float y2, float w, float h, float ox, float oy, float adv)
+void Font::add_glyph(unsigned code, float x1, float y1, float x2, float y2, float w, float h, float ox, float oy, float adv)
 {
 	Glyph glyph;
 	glyph.code=code;
@@ -51,12 +57,12 @@ float Font::get_string_width(const string &str) const
 	return x;
 }
 
-float Font::get_string_width(const wstring &str) const
+float Font::get_string_width(const string &str, Codecs::Decoder &dec) const
 {
 	float x=0;
 
-	for(wstring::const_iterator i=str.begin(); i!=str.end(); ++i)
-		x+=get_glyph_advance(*i);
+	for(string::const_iterator i=str.begin(); i!=str.end();)
+		x+=get_glyph_advance(dec.decode_char(str, i));
 
 	return x;
 }
@@ -71,22 +77,16 @@ void Font::draw_string(const string &str) const
 	glPopMatrix();
 }
 
-void Font::draw_string(const wstring &str) const
+void Font::draw_string(const string &str, Codecs::Decoder &dec) const
 {
 	prepare_render();
 
-	for(wstring::const_iterator i=str.begin(); i!=str.end(); ++i)
-		draw_glyph(*i);
+	for(string::const_iterator i=str.begin(); i!=str.end();)
+		draw_glyph(dec.decode_char(str, i));
 
 	glPopMatrix();
 }
 
-Font::~Font()
-{
-	if(own_tex)
-		delete tex;
-}
-
 void Font::create_glyph_vertices()
 {
 	varray.clear();
@@ -119,7 +119,7 @@ void Font::prepare_render() const
 	glPushMatrix();
 }
 
-void Font::draw_glyph(wchar_t code) const
+void Font::draw_glyph(unsigned code) const
 {
 	GlyphMap::const_iterator i=glyphs.find(code);
 	if(i==glyphs.end())
@@ -130,7 +130,7 @@ void Font::draw_glyph(wchar_t code) const
 	glTranslatef(i->second.advance, 0, 0);
 }
 
-float Font::get_glyph_advance(wchar_t code) const
+float Font::get_glyph_advance(unsigned code) const
 {
 	GlyphMap::const_iterator i=glyphs.find(code);
 	if(i==glyphs.end())
diff --git a/source/font.h b/source/font.h
index 609f2723..278a14aa 100644
--- a/source/font.h
+++ b/source/font.h
@@ -3,7 +3,8 @@
 
 #include <map>
 #include <string>
-#include <msp/parser/loader.h>
+#include <msp/datafile/loader.h>
+#include <msp/strings/codec.h>
 #include "vertexarray.h"
 
 namespace Msp {
@@ -14,7 +15,7 @@ class Texture2D;
 class Font
 {
 public:
-	class Loader: public Msp::Parser::Loader
+	class Loader: public Msp::DataFile::Loader
 	{
 	public:
 		Loader(Font &);
@@ -28,22 +29,37 @@ public:
 	};
 
 	Font();
+	~Font();
+
 	void  set_texture(const Texture2D &);
-	void  add_glyph(wchar_t, float, float, float, float, float, float, float, float, float);
+	void  add_glyph(unsigned, float, float, float, float, float, float, float, float, float);
 	float get_default_size() const { return default_size; }
 	float get_ascent() const { return ascent; }
 	float get_descent() const { return descent; }
 	float get_string_width(const std::string &) const;
-	float get_string_width(const std::wstring &) const;
-	void  draw_glyph(wchar_t);
+	float get_string_width(const std::string &, Codecs::Decoder &) const;
+	void  draw_glyph(unsigned);
 	void  draw_string(const std::string &) const;
-	void  draw_string(const std::wstring &) const;
+	void  draw_string(const std::string &, Codecs::Decoder &) const;
 	void  draw_multiline(const std::string &) const;
-	~Font();
+	
+	template<class C>
+	float get_string_width(const std::string &str) const
+	{
+		typename C::Decoder dec;
+		return get_string_width(str, dec);
+	}	
+	
+	template<class C>
+	void draw_string(const std::string &str) const
+	{
+		typename C::Decoder dec;
+		draw_string(str, dec);
+	}	
 private:
 	struct Glyph
 	{
-		class Loader: public Msp::Parser::Loader
+		class Loader: public Msp::DataFile::Loader
 		{
 		public:
 			Loader(Glyph &);
@@ -56,7 +72,7 @@ private:
 			void offset(float, float);
 		};
 
-		wchar_t code;
+		unsigned code;
 		float x1,y1;
 		float x2,y2;
 		float w,h;
@@ -64,7 +80,7 @@ private:
 		float advance;
 		unsigned index;
 	};
-	typedef std::map<wchar_t, Glyph> GlyphMap;
+	typedef std::map<unsigned, Glyph> GlyphMap;
 
 	const Texture2D *tex;
 	bool     own_tex;
@@ -77,8 +93,8 @@ private:
 	void create_glyph_vertices();
 	void create_glyph_vertices(const Glyph &, VertexArrayBuilder &);
 	void prepare_render() const;
-	void draw_glyph(wchar_t) const;
-	float get_glyph_advance(wchar_t) const;
+	void draw_glyph(unsigned) const;
+	float get_glyph_advance(unsigned) const;
 };
 
 } // namespace GL
diff --git a/source/program.h b/source/program.h
index 682ac99f..5b1ae29f 100644
--- a/source/program.h
+++ b/source/program.h
@@ -23,7 +23,7 @@ class Program
 {
 public:
 	Program();
-	~Program();
+	virtual ~Program();
 
 	void attach_shader(Shader &shader);
 	void detach_shader(Shader &shader);
-- 
2.43.0