/* drawclefs.cpp
 * functions for drawing clefs
 *
 * for Denemo, a gtk+ frontend to GNU Lilypond
 * (c) 1999-2005 Matthew Hiller, Adam Tee
 */

#include "utils.h"		/* Includes gtk.h */
#include <denemo/denemo.h>

/* Include the pixmaps; they'll actually be made into GdkPixmaps with the
 * GDK create_from_xpm_d functions. Doing things this way circumvents the need
 * to install the pixmaps into a /usr/share directory of some kind before
 * the program can be run from anywhere on the system. */

#include "../pixmaps/feta26-clefs-treble.xbm"
#include "../pixmaps/feta26-clefs-bass.xbm"
#include "../pixmaps/feta26-clefs-alto.xbm"
#include "../pixmaps/feta26-clefs-g_8.xbm"

#define NUMCLEFTYPES 6
#define TREBLE_WIDTH 26
#define TREBLE_HEIGHT 76
#define TREBLE_TOPOFFSET -16
#define BASS_WIDTH 27
#define BASS_HEIGHT 32
#define BASS_TOPOFFSET 1
#define ALTO_WIDTH 27
#define ALTO_HEIGHT 41
#define ALTO_TOPOFFSET 0
#define G_8_TOPOFFSET -8
#define TENOR_TOPOFFSET -9
#define SOPRANO_TOPOFFSET 20

/**
 * This function draws the clef appropriate for the current context
 * onto the backing pixmap 
 */
void
draw_clef (GdkPixmap * pixmap, GdkGC * gc, gint xx, gint y, gint type)
{
  static GdkPixmap *clefs[NUMCLEFTYPES] =
    { NULL, NULL, NULL, NULL, NULL, NULL };
  static gint clefwidths[NUMCLEFTYPES] =
    { TREBLE_WIDTH, BASS_WIDTH, ALTO_WIDTH, TREBLE_WIDTH, ALTO_WIDTH,
    TREBLE_WIDTH
  };
  static gint clefheights[NUMCLEFTYPES] =
    { TREBLE_HEIGHT, BASS_HEIGHT, ALTO_HEIGHT, TREBLE_HEIGHT, ALTO_HEIGHT,
    TREBLE_HEIGHT
  };
  static gint clefoffsets[NUMCLEFTYPES] =
    { TREBLE_TOPOFFSET, BASS_TOPOFFSET, ALTO_TOPOFFSET, G_8_TOPOFFSET,
    TENOR_TOPOFFSET, SOPRANO_TOPOFFSET
  };

  if (!clefs[0])
    {
      clefs[DENEMO_TREBLE_CLEF] = bitmaphelper (NULL, feta26_clefs_treble);
      clefs[DENEMO_BASS_CLEF] = bitmaphelper (NULL, feta26_clefs_bass);
      clefs[DENEMO_ALTO_CLEF] = bitmaphelper (NULL, feta26_clefs_alto);
      clefs[DENEMO_G_8_CLEF] = bitmaphelper (NULL, feta26_clefs_g_8);
      clefs[DENEMO_TENOR_CLEF] = bitmaphelper (NULL, feta26_clefs_alto);
      clefs[DENEMO_SOPRANO_CLEF] = bitmaphelper (NULL, feta26_clefs_alto);
    }

  drawbitmapinverse (pixmap, gc, clefs[type],
		     xx, y + clefoffsets[type],
		     clefwidths[type], clefheights[type]);
}