]> git.cworth.org Git - scherzo/blobdiff - score.h
Switch to using pango, not cairo_show_text for chord names
[scherzo] / score.h
diff --git a/score.h b/score.h
index 25d558329eb4c05923b924119daac08e8b8041e1..03add0353aa71b07070c97f4b60e68ca2ac04144 100644 (file)
--- a/score.h
+++ b/score.h
 
 typedef struct score score_t;
 typedef struct score_staff score_staff_t;
-typedef struct score_note score_note_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_Aff,
-    SCORE_PITCH_Af,
-    SCORE_PITCH_A,
-    SCORE_PITCH_As,
-    SCORE_PITCH_Ass,
-
-    SCORE_PITCH_Bff,
-    SCORE_PITCH_Bf,
-    SCORE_PITCH_B,
-    SCORE_PITCH_Bs,
-    SCORE_PITCH_Bss,
-
-    SCORE_PITCH_Cff,
-    SCORE_PITCH_Cf,
-    SCORE_PITCH_C,
-    SCORE_PITCH_Cs,
-    SCORE_PITCH_Css,
-
-    SCORE_PITCH_Dff,
-    SCORE_PITCH_Df,
-    SCORE_PITCH_D,
-    SCORE_PITCH_Ds,
-    SCORE_PITCH_Dss,
-
-    SCORE_PITCH_Eff,
-    SCORE_PITCH_Ef,
-    SCORE_PITCH_E,
-    SCORE_PITCH_Es,
-    SCORE_PITCH_Ess,
-
-    SCORE_PITCH_Fff,
-    SCORE_PITCH_Ff,
-    SCORE_PITCH_F,
-    SCORE_PITCH_Fs,
-    SCORE_PITCH_Fss,
-
-    SCORE_PITCH_Gff,
-    SCORE_PITCH_Gf,
-    SCORE_PITCH_G,
-    SCORE_PITCH_Gs,
-    SCORE_PITCH_Gss
+    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
@@ -95,10 +128,34 @@ typedef enum score_duration
 
 #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_F
+    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
@@ -139,10 +196,43 @@ score_add_staff (score_t *score, score_clef_t clef);
  * QUARTER=4, EIGHTH=8, etc.)
  */
 score_note_t *
-score_staff_add_note (score_staff_t *staff,
-                     score_pitch_t pitch,
-                     int octave,
-                     score_duration_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.
  *