#ifndef SCORE_H
#define SCORE_H
+#include <talloc.h>
#include <cairo.h>
typedef struct score score_t;
+typedef struct score_staff score_staff_t;
+
+#define SCORE_PITCH_ACCIDENTAL_MASK 0x07
+#define SCORE_PITCH_ACCIDENTAL_SHIFT 0
+
+typedef enum score_pitch_accidental
+{
+ SCORE_PITCH_ACCIDENTAL_DOUBLE_FLAT,
+ SCORE_PITCH_ACCIDENTAL_FLAT,
+ SCORE_PITCH_ACCIDENTAL_NATURAL,
+ SCORE_PITCH_ACCIDENTAL_SHARP,
+ SCORE_PITCH_ACCIDENTAL_DOUBLE_SHARP
+} score_pitch_accidental_t;
+
+#define SCORE_PITCH_ACCIDENTAL(pitch) (((pitch) & SCORE_PITCH_ACCIDENTAL_MASK) >> SCORE_PITCH_ACCIDENTAL_SHIFT)
+
+#define SCORE_PITCH_NAME_MASK 0x38
+#define SCORE_PITCH_NAME_SHIFT 3
+
+typedef enum score_pitch_name
+{
+ SCORE_PITCH_NAME_C,
+ SCORE_PITCH_NAME_D,
+ SCORE_PITCH_NAME_E,
+ SCORE_PITCH_NAME_F,
+ SCORE_PITCH_NAME_G,
+ SCORE_PITCH_NAME_A,
+ SCORE_PITCH_NAME_B,
+} score_pitch_name_t;
+
+#define SCORE_PITCH_NAME(pitch) (((pitch) & SCORE_PITCH_NAME_MASK) >> SCORE_PITCH_NAME_SHIFT)
+
+#define SCORE_PITCH(name, accidental) (((name) << SCORE_PITCH_NAME_SHIFT) | (accidental))
+
+#define SCORE_PITCH_LITERAL(literal_name, literal_accidental) SCORE_PITCH(SCORE_PITCH_NAME_##literal_name, SCORE_PITCH_ACCIDENTAL_##literal_accidental)
+
+typedef enum score_pitch
+{
+ SCORE_PITCH_Cff = SCORE_PITCH_LITERAL (C, DOUBLE_FLAT),
+ SCORE_PITCH_Cf = SCORE_PITCH_LITERAL (C, FLAT),
+ SCORE_PITCH_C = SCORE_PITCH_LITERAL (C, NATURAL),
+ SCORE_PITCH_Cs = SCORE_PITCH_LITERAL (C, SHARP),
+ SCORE_PITCH_Css = SCORE_PITCH_LITERAL (C, DOUBLE_SHARP),
+
+ SCORE_PITCH_Dff = SCORE_PITCH_LITERAL (D, DOUBLE_FLAT),
+ SCORE_PITCH_Df = SCORE_PITCH_LITERAL (D, FLAT),
+ SCORE_PITCH_D = SCORE_PITCH_LITERAL (D, NATURAL),
+ SCORE_PITCH_Ds = SCORE_PITCH_LITERAL (D, SHARP),
+ SCORE_PITCH_Dss = SCORE_PITCH_LITERAL (D, DOUBLE_SHARP),
+
+ SCORE_PITCH_Eff = SCORE_PITCH_LITERAL (E, DOUBLE_FLAT),
+ SCORE_PITCH_Ef = SCORE_PITCH_LITERAL (E, FLAT),
+ SCORE_PITCH_E = SCORE_PITCH_LITERAL (E, NATURAL),
+ SCORE_PITCH_Es = SCORE_PITCH_LITERAL (E, SHARP),
+ SCORE_PITCH_Ess = SCORE_PITCH_LITERAL (E, DOUBLE_SHARP),
+
+ SCORE_PITCH_Fff = SCORE_PITCH_LITERAL (F, DOUBLE_FLAT),
+ SCORE_PITCH_Ff = SCORE_PITCH_LITERAL (F, FLAT),
+ SCORE_PITCH_F = SCORE_PITCH_LITERAL (F, NATURAL),
+ SCORE_PITCH_Fs = SCORE_PITCH_LITERAL (F, SHARP),
+ SCORE_PITCH_Fss = SCORE_PITCH_LITERAL (F, DOUBLE_SHARP),
+
+ SCORE_PITCH_Gff = SCORE_PITCH_LITERAL (G, DOUBLE_FLAT),
+ SCORE_PITCH_Gf = SCORE_PITCH_LITERAL (G, FLAT),
+ SCORE_PITCH_G = SCORE_PITCH_LITERAL (G, NATURAL),
+ SCORE_PITCH_Gs = SCORE_PITCH_LITERAL (G, SHARP),
+ SCORE_PITCH_Gss = SCORE_PITCH_LITERAL (G, DOUBLE_SHARP),
+
+ SCORE_PITCH_Aff = SCORE_PITCH_LITERAL (A, DOUBLE_FLAT),
+ SCORE_PITCH_Af = SCORE_PITCH_LITERAL (A, FLAT),
+ SCORE_PITCH_A = SCORE_PITCH_LITERAL (A, NATURAL),
+ SCORE_PITCH_As = SCORE_PITCH_LITERAL (A, SHARP),
+ SCORE_PITCH_Ass = SCORE_PITCH_LITERAL (A, DOUBLE_SHARP),
+
+ SCORE_PITCH_Bff = SCORE_PITCH_LITERAL (B, DOUBLE_FLAT),
+ SCORE_PITCH_Bf = SCORE_PITCH_LITERAL (B, FLAT),
+ SCORE_PITCH_B = SCORE_PITCH_LITERAL (B, NATURAL),
+ SCORE_PITCH_Bs = SCORE_PITCH_LITERAL (B, SHARP),
+ SCORE_PITCH_Bss = SCORE_PITCH_LITERAL (B, DOUBLE_SHARP)
+} score_pitch_t;
+
+typedef enum score_duration
+{
+ SCORE_DURATION_WHOLE = 1,
+ SCORE_DURATION_1 = 1,
+ SCORE_DURATION_HALF = 2,
+ SCORE_DURATION_2 = 2,
+ SCORE_DURATION_QUARTER = 4,
+ SCORE_DURATION_4 = 4,
+ SCORE_DURATION_EIGHTH = 8,
+ SCORE_DURATION_8 = 8,
+ SCORE_DURATION_SIXTEENTH = 16,
+ SCORE_DURATION_16 = 16,
+ SCORE_DURATION_THIRTYSECOND = 32,
+ SCORE_DURATION_32 = 32,
+ SCORE_DURATION_SIXTYFOURTH = 64,
+ SCORE_DURATION_64 = 64,
+ SCORE_DURATION_ONEHUNDREDTWENTYEIGHTH = 128,
+ SCORE_DURATION_128 = 128
+} score_duration_t;
+
+#define SCORE_BUILD_NOTE(pitch, octave, duration) SCORE_PITCH_##pitch, (octave), SCORE_DURATION_##duration
+
+typedef struct score_note
+{
+ score_staff_t *staff;
+ score_pitch_t pitch;
+ int octave;
+ score_duration_t duration;
+
+ struct {
+ double r;
+ double g;
+ double b;
+ } color;
+} score_note_t;
+
+typedef struct score_chord
+{
+ score_staff_t *staff;
+
+ char *name;
+ double width;
+} score_chord_t;
+
+typedef enum score_clef
+{
+ SCORE_CLEF_G,
+ SCORE_CLEF_TREBLE = SCORE_CLEF_G,
+ SCORE_CLEF_F,
+ SCORE_CLEF_BASS = SCORE_CLEF_F
+} score_clef_t;
/* Allocate a new, empty score object, (with optional ctx as talloc
* owner). If ctx is NULL, the caller should call talloc_free on the
int
score_set_staff_height (score_t *score, int height);
+/* Set the total width available for drawing the score. */
+void
+score_set_width (score_t *score, int width);
+
+/* Add a brace to the score, connecting the given number of staves.
+ *
+ * The staves to be connected are those that will next be added to the
+ * score. */
+void
+score_add_brace (score_t *score, int staves);
+
+/* Add a new staff to the score */
+score_staff_t *
+score_add_staff (score_t *score, score_clef_t clef);
+
+/* Add a note to a staff of the given pitch, octave, and duration.
+ *
+ * Octave numbers are ISO octave numbers [0:8], (so Octave 4 is from
+ * middle C to the B above middle C).
+ *
+ * Duration values can be symbolic (SCORE_DURATION_WHOLE, _QUARTER,
+ * _EIGHTH, etc.) or numerical as simply the denominator (WHOLE=1,
+ * QUARTER=4, EIGHTH=8, etc.)
+ */
+score_note_t *
+score_add_note (score_staff_t *staff,
+ score_pitch_t pitch,
+ int octave,
+ score_duration_t);
+
+/* Add a chord symbol of 'name' to a staff.
+ *
+ * For now, the chord symbols are free-form names.
+ *
+ * The chord name must be a talloc'ed string, which the returned
+ * score_chord_t will talloc_steal.
+ */
+score_chord_t *
+score_add_chord (score_staff_t *staff,
+ const char * name);
+
+/* Remove the given chord from its staff. */
+void
+score_remove_chord (score_chord_t *chord);
+
+/* Remove the given note from its staff. */
+void
+score_remove_note (score_note_t *note);
+
+void
+score_set_note_color_rgb (score_note_t *note,
+ double r,
+ double g,
+ double b);
+
+/* Return the first note on the given staff with the given pitch,
+ * octave, and durations. Returns NULL if no match is found. */
+score_note_t *
+score_staff_find_note (score_staff_t *staff,
+ score_pitch_t pitch,
+ int octave,
+ score_duration_t duration);
+
/* Draw the given score_t onto the given cairo_t.
*
* The caller can call cairo_translate before calling score_draw to
projects / scherzo / blobdiff