--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sdlterm/src/sdlterm.h	Sat Jan 05 00:40:27 2013 +0100
@@ -0,0 +1,135 @@
+#include "SDL.h"
+#include "SDL_ttf.h"
+
+#include <map>
+#include <vector>
+
+
+class GlyphRenderer
+{
+public:
+	GlyphRenderer();
+	~GlyphRenderer();
+
+	void open_font(const char *fname_regular, const char *fname_bold, int ptsize);
+	void close_font();
+
+	SDL_Surface *render_glyph(Uint16 ch);
+
+	int get_cell_width() { return _cell_width; };
+	int get_cell_height() { return _cell_height; };
+
+private:
+	TTF_Font *_font_regular;
+	TTF_Font *_font_bold;
+	int _cell_width;
+	int _cell_height;
+	std::map<Uint16, SDL_Surface*> _cache;
+};
+
+
+struct TerminalCell
+{
+	Uint16 ch;
+	Uint16 attr;
+};
+
+
+class TerminalScreen
+{
+public:
+	TerminalScreen(): _screen_surface(NULL), _cells(NULL), _render() {};
+	~TerminalScreen();
+
+	void select_font(const char *fname_regular, const char *fname_bold, int ptsize);
+	void resize(int pxwidth, int pxheight);
+
+	void erase();
+	void putch(int x, int y, Uint16 ch, Uint16 attr);
+	void commit();
+
+private:
+	SDL_Surface *_screen_surface;
+	TerminalCell *_cells;
+	GlyphRenderer _render;
+
+	int _pixel_width;  // terminal window width in pixels
+	int _pixel_height;
+	int _width;  // width in characters
+	int _height; // height in characters
+	int _cell_width;  // character cell width in pixels
+	int _cell_height;
+
+	void _reset_cells();
+};
+
+
+enum class EventType : Uint8
+{
+	quit,
+	resize,
+	keypress,
+	mousedown,
+	mouseup,
+	mousemove,
+	mousewheel
+};
+
+
+struct WindowEvent
+{
+	EventType type;
+};
+
+
+struct KeyboardEvent
+{
+	EventType type;
+};
+
+
+struct MouseEvent
+{
+	EventType type;
+};
+
+
+union Event
+{
+	EventType type;
+	WindowEvent window;
+	KeyboardEvent key;
+	MouseEvent mouse;
+};
+
+
+class Terminal
+{
+public:
+	Terminal();
+	~Terminal();
+
+	void select_font(const char *fname_regular, const char *fname_bold, int ptsize)
+		{ _screen.select_font(fname_regular, fname_bold, ptsize); };
+	void resize(int pxwidth, int pxheight) { _screen.resize(pxwidth, pxheight); };
+
+	void erase() { _screen.erase(); };
+	void putch(int x, int y, Uint16 ch) { _screen.putch(x, y, ch, _attr); };
+	void commit() { _screen.commit(); };
+
+	Uint16 prepare_attr(Uint8 fg, Uint8 bg, Uint8 style) { return fg | bg << 8 | style << 16; };
+	void set_attr(Uint16 value) { _attr = value; };
+
+	void set_cursor(int x, int y) { _cursor_x = x; _cursor_y = y; };
+	void show_cursor(bool visible) { _cursor_visible = visible; };
+
+	void get_next_event(Event &event);
+
+private:
+	TerminalScreen _screen;
+	Uint16 _attr;
+	int _cursor_x;
+	int _cursor_y;
+	bool _cursor_visible;
+};
+