#include <pango/pangocairo.h>
#include <string.h>
+#include <math.h>
#include "score.h"
}
}
+/* On which line would 'pitch' appear on 'staff'.
+ *
+ * Lines are numbered with line 0 as the top full line of the staff
+ * and increasing downward. So line values less than 0 will appear as
+ * ledger lines above the staff while line values greater than 4 will
+ * appear on ledger lines below the staff.
+ *
+ * A line value of 2 will be centered verticall on the staff.
+ *
+ * For notes appearing on a space, the line value will be half-way
+ * between two integers. */
static double
-_score_note_to_line (score_staff_t *staff, score_note_t *note)
+_score_staff_pitch_to_line (score_staff_t *staff, pitch_t pitch)
{
- pitch_name_t name = PITCH_NAME (note->pitch);
- int octave = PITCH_OCTAVE (note->pitch);
+ pitch_name_t name = PITCH_NAME (pitch);
+ int octave = PITCH_OCTAVE (pitch);
int c_line = _score_clef_c_line (staff->clef);
return c_line - (name - PITCH_NAME_C) / 2.0 - 3.5 * (octave - 4);
* note on a ledger line above the staff). Values half way between
* integers indicate notes appearing on a space between two staff
* lines (or ledger lines). */
- line = _score_note_to_line (staff, note);
+ line = _score_staff_pitch_to_line (staff, note->pitch);
cairo_select_font_face (cr, "Gonville-26", 0, 0);
cairo_set_font_size (cr, score->staff_height);
}
score_note_t *
-score_add_note (score_staff_t *staff,
- pitch_t pitch,
- score_duration_t duration)
+score_staff_add_note (score_staff_t *staff,
+ pitch_t pitch,
+ score_duration_t duration)
{
score_note_t *note;
double line;
note->color.g = 0.0;
note->color.b = 0.0;
- line = _score_note_to_line (staff, note);
+ line = _score_staff_pitch_to_line (staff, note->pitch);
if (line < 0) {
int lines = (int) (- line);
if (lines > staff->upper_ledger_lines)
return note;
}
+score_note_t *
+score_add_note (score_t *score, pitch_t pitch, score_duration_t duration)
+{
+ score_staff_t *staff, *nearest_staff = NULL;
+ double distance, nearest_distance = 0.0;
+ int i;
+
+ /* Nothing to do if we have no staff, (there's no place to add a note) . */
+ if (score->num_staves == 0)
+ return NULL;
+
+ /* Find the staff where the note will be closest to the center of
+ * the staff. */
+ for (i = 0; i < score->num_staves; i++) {
+ staff = score->staves[i];
+ distance = fabs (_score_staff_pitch_to_line (staff, pitch) - 2.0);
+ if (nearest_staff == NULL || distance < nearest_distance) {
+ nearest_staff = staff;
+ nearest_distance = distance;
+ }
+ }
+
+ return score_staff_add_note (nearest_staff, pitch, duration);
+}
+
void
score_remove_note (score_note_t *note)
{
}
}
+void
+score_staff_remove_notes (score_staff_t *staff)
+{
+ talloc_free (staff->notes);
+ staff->notes = NULL;
+ staff->num_notes = 0;
+}
+
+void
+score_remove_notes (score_t *score)
+{
+ int i;
+
+ for (i = 0; i < score->num_staves; i++)
+ score_staff_remove_notes (score->staves[i]);
+}
+
void
score_set_note_color_rgb (score_note_t *note,
double r,