Open MIDI device and display notes being played in real time.

[scherzo] / score.c

diff --git a/score.c b/score.c
index 7a1c231a4b82cfdcef0d972dcf88ac6c1168e645..b2866096e3c0183c254ae6ae3838e9325c637dcb 100644 (file)
--- a/score.c
+++ b/score.c
@@ -18,6 +18,8 @@
  * along with this program.  If not, see http://www.gnu.org/licenses/ .
  */
 
+#include <string.h>
+
 #include "score.h"
 
 struct score_staff
@@ -222,7 +224,6 @@ _draw_staff (score_t *score, cairo_t *cr,
 {
     int i;
     cairo_glyph_t clef_glyph;
-    cairo_text_extents_t clef_extents;
 
     cairo_save (cr);
 
@@ -249,8 +250,6 @@ _draw_staff (score_t *score, cairo_t *cr,
     cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
     cairo_show_glyphs (cr, &clef_glyph, 1);
 
-    cairo_glyph_extents (cr, &clef_glyph, 1, &clef_extents);
-
     /* Draw staff lines */
     for (i = 0; i < 5; i++) {
        cairo_move_to (cr, 0, i * score->space_height + score->line_width / 2.0);
@@ -263,12 +262,14 @@ _draw_staff (score_t *score, cairo_t *cr,
     cairo_stroke (cr);
 
     /* Make space for clef before drawing notes */
-    cairo_translate (cr, (int) (1.5 * clef_extents.width), 0);
+    cairo_translate (cr, (int) (4 * score->space_height), 0);
 
     /* Draw notes */
     for (i = 0; i < staff->num_notes; i++) {
        _draw_note (score, cr, staff, staff->notes[i]);
+       /* Draw all notes concurrent for now (as a chord)
        cairo_translate (cr, score->space_height * 2.0, 0);
+       */
     }
 
     cairo_restore (cr);
@@ -402,3 +403,47 @@ score_staff_add_note (score_staff_t *staff,
     return note;
 }
 
+void
+score_staff_remove_note (score_staff_t *staff, score_note_t *note)
+{
+    int i;
+
+    for (i = 0; i < staff->num_notes; i++)
+       if (staff->notes[i] == note)
+           break;
+
+    if (i == staff->num_notes)
+       return;
+
+    if (i < staff->num_notes - 1)
+    {
+       memmove (staff->notes + i,
+                staff->notes + i + 1, 
+                (staff->num_notes - 1 - i) * sizeof (score_note_t *));
+    }
+
+    staff->num_notes -= 1;
+}
+
+score_note_t *
+score_staff_find_note (score_staff_t *staff,
+                      score_pitch_t pitch,
+                      int octave,
+                      score_duration_t duration)
+{
+    int i;
+    score_note_t *note;
+
+    for (i = 0; i < staff->num_notes; i++) {
+       note = staff->notes[i];
+       if (note->pitch == pitch &&
+           note->octave == octave &&
+           note->duration == duration)
+       {
+           return note;
+       }
+    }
+
+    return NULL;
+}
+