#ifndef WAVE_CTRL_H
#define WAVE_CTRL_H

typedef enum
{
	FILL_MODE,
	SCAN_MODE
}E_WAVE_DRAW_MODE;

class c_wave_buffer;
class c_wave_ctrl : public c_wnd
{
public:
	c_wave_ctrl();
	virtual c_wnd* clone(){return new c_wave_ctrl();}
	virtual void on_init_children();
	virtual void on_paint();

	void set_wave_name(char* wave_name){ m_wave_name = wave_name;}
	void set_wave_unit(char* wave_unit){ m_wave_unit = wave_unit;}

	void set_wave_name_font(const FONT_INFO* wave_name_font_type){ m_wave_name_font = wave_name_font_type;}
	void set_wave_unit_font(const FONT_INFO* wave_unit_font_type){ m_wave_unit_font = wave_unit_font_type;}

	void set_wave_name_color(unsigned int wave_name_color){ m_wave_name_color = wave_name_color;}
	void set_wave_unit_color(unsigned int wave_unit_color){ m_wave_unit_color = wave_unit_color;}
	void set_wave_color(unsigned int color){ m_wave_color = color;}
	void set_wave_in_out_rate(unsigned int data_rate, unsigned int refresh_rate);
	void set_wave_speed(unsigned int speed);

	void set_max_min(short max_data, short min_data);
	void set_wave(c_wave_buffer* wave){m_wave = wave;}
	c_wave_buffer* get_wave(){return m_wave;}
	void clear_data();
	bool is_data_enough();
	void refresh_wave(unsigned char frame);
	void clear_wave();
	
protected:
	void draw_smooth_vline(int y_min, int y_max, int mid, unsigned int rgb);
	void restore_background();
	void save_background();

	char* m_wave_name;
	char* m_wave_unit;

	const FONT_INFO* m_wave_name_font;
	const FONT_INFO* m_wave_unit_font;

	unsigned int m_wave_name_color;
	unsigned int m_wave_unit_color;

	unsigned int m_wave_color;
	unsigned int m_back_color;

	int m_wave_left;
	int m_wave_right;
	int m_wave_top;
	int m_wave_bottom;

	short m_max_data;
	short m_min_data;
	
private:
	c_wave_buffer*	m_wave;
	unsigned int*	m_bg_fb;			//background frame buffer, could be used to draw scale line.
	int 			m_wave_cursor;
	int 			m_wave_speed;		//pixels per refresh
	unsigned int	m_wave_data_rate;	//data sample rate
	unsigned int	m_wave_refresh_rate;//refresh cycle in millisecond
	unsigned char 	m_frame_len_map[64];
	unsigned char 	m_frame_len_map_index;
};
#endif