1.1 --- a/src/xfermap.h	Tue Dec 30 06:22:54 2014 +0200
     1.2 +++ b/src/xfermap.h	Tue Dec 30 17:28:38 2014 +0200
     1.3 @@ -12,11 +12,20 @@
     1.4  class TransferWindow : public TransferFunc {
     1.5  private:
     1.6  	float soft_rad;
     1.7 -	float low[4], high[4];	// rgb
     1.8 +	float low[3], high[3];	// rgb
     1.9  
    1.10  public:
    1.11 +	enum { HANDLE_LOW = 0, HANDLE_HIGH = 1};
    1.12 +
    1.13  	TransferWindow();
    1.14  
    1.15 +	// handle: 0 or HANDLE_LOW is low, 1 or HANDLE_HIGH is high
    1.16 +	// if channel == -1, change all channels simultaneously
    1.17 +	void set_handle(int channel, int handle, float val);
    1.18 +	float get_handle(int channel, int handle) const;
    1.19 +
    1.20 +	int nearest_handle(int channel, float pos) const;
    1.21 +
    1.22  	void set_interval(float a, float b);
    1.23  	void set_interval(float *rgba_low, float *rgba_high);
    1.24  	void set_interval_rgba(int channel, float a, float b);