multibar.h

/*
 *
 *  postfish
 *    
 *      Copyright (C) 2002-2005 Monty
 *
 *  Postfish is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  Postfish is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with Postfish; see the file COPYING.  If not, write to the
 *  Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * 
 */

#ifndef __MULTIBAR_H__
#define __MULTIBAR_H__

#include <sys/time.h>
#include <time.h>
#include <glib.h>
#include <glib-object.h>
#include <gtk/gtk.h>

G_BEGIN_DECLS

#define MULTIBAR_TYPE            (multibar_get_type ())
#define MULTIBAR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), MULTIBAR_TYPE, Multibar))
#define MULTIBAR_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), MULTIBAR_TYPE, MultibarClass))
#define IS_MULTIBAR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MULTIBAR_TYPE))
#define IS_MULTIBAR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), MULTIBAR_TYPE))

typedef struct _Multibar       Multibar;
typedef struct _MultibarClass  MultibarClass;

typedef struct bartack {
  float pixelposhi;
  float pixelposlo;
  float pixeldeltahi;
  float pixeldeltalo;
} bartrack;

#define HI_ATTACK   (1<<0)
#define LO_ATTACK   (1<<1)
#define HI_DECAY    (1<<2)
#define LO_DECAY    (1<<3)
#define ZERO_DAMP   (1<<4)
#define PEAK_FOLLOW (1<<5)


struct _Multibar{

  GtkDrawingArea canvas;  
  GdkPixmap *backing;

  int labels;
  int readout;
  PangoLayout **layout;
  float       *levels;

  GdkGC         *boxcolor;
  float         peak;
  int            peakdelay;
  float         peakdelta;

  int            clipdelay;

  bartrack *bartrackers;
  int bars;
  int dampen_flags;

  int    thumbs;
  float  thumbval[3];
  int    thumbpixel[3];

  GtkStateType thumbstate[3];
  int    thumbfocus;
  int    thumbgrab;
  int    widgetfocus;

  int    thumbx;
  float  thumblo;
  float  thumbhi;
  float  thumbsmall;
  float  thumblarge;

  int    thumblo_x;
  int    thumbhi_x;

  int       xpad;

  void  (*callback)(GtkWidget *,gpointer);
  gpointer callbackp;
};

struct _MultibarClass{

  GtkDrawingAreaClass parent_class;
  void (* multibar) (Multibar *m);
};

GType          multibar_get_type        (void);
GtkWidget*     multibar_new             (int n, char **labels, float *levels,
					 int thumbs, int flags);
GtkWidget*     multibar_slider_new (int n, char **labels, float *levels, 
				    int thumbs);

void	       multibar_clear           (Multibar *m);
void	       multibar_set             (Multibar *m,float *lo,float *hi, int n,int drawp);
void	       multibar_thumb_set       (Multibar *m,float v, int n);
void	       multibar_setwarn         (Multibar *m,int drawp);
void           multibar_reset           (Multibar *m);
void           multibar_callback        (Multibar *m,
					 void (*callback)
					 (GtkWidget *,gpointer),
					 gpointer);
float          multibar_get_value       (Multibar *m,int n);
void           multibar_thumb_bounds    (Multibar *m,float lo, float hi);
void           multibar_thumb_increment (Multibar *m,float small, float large);
int            multibar_thumb_grab_p    (Multibar *m);
int            multibar_thumb_focus     (Multibar *m);

G_END_DECLS

#endif