Add some color coding of input notes.

[scherzo] / scherzo.c

diff --git a/scherzo.c b/scherzo.c
index 88cae44fe4cdb85bde4669a41e713f463767915c..2d43aee0bd5d8aacdc6e0fe43910735b2a8331d6 100644 (file)
--- a/scherzo.c
+++ b/scherzo.c
@@ -92,7 +92,7 @@ on_expose_event_draw (GtkWidget *widget,
     cairo_paint (cr);
 
     /* Add some padding on the sides and top */
-    cairo_translate (cr, pad, 2 * scherzo->staff_height);
+    cairo_translate (cr, pad, scherzo->staff_height);
     score_set_staff_height (score, scherzo->staff_height);
     score_set_width (score, widget_width - 2 * pad);
 
@@ -325,10 +325,12 @@ _judge_note (scherzo_t *scherzo, score_note_t *note)
        note->octave == challenge->note->octave)
     {
        challenge->satisfied = 1;
+       score_set_note_color_rgb (note, 18/256., 130/256., 28/256.); /* green */
     }
     else
     {
        challenge->mistaken = 1;
+       score_set_note_color_rgb (note, 184/256., 4/256., 22/256.); /* red */
     }
 }
 
@@ -358,6 +360,7 @@ on_midi_input (unused (GIOChannel *channel),
     ssize_t remaining;
     snd_seq_event_t event;
     score_note_t *note;
+    int need_redraw = FALSE;
 
     remaining = read (scherzo->midi_fd, buf, MIDI_BUF_SIZE);
 
@@ -378,12 +381,12 @@ on_midi_input (unused (GIOChannel *channel),
        case SND_SEQ_EVENT_NOTEON:
            note = scherzo_add_note_midi (scherzo, event.data.note.note);
            _judge_note (scherzo, note);
-           gtk_widget_queue_draw (scherzo->window);
+           need_redraw = TRUE;
            break;
        case SND_SEQ_EVENT_NOTEOFF:
            scherzo_remove_note_midi (scherzo, event.data.note.note);
            _score_challenge (scherzo);
-           gtk_widget_queue_draw (scherzo->window);
+           need_redraw = TRUE;
            break;
        case SND_SEQ_EVENT_CLOCK:
            /* Ignore for now as my piano sends a constant stream of these. */
@@ -397,7 +400,10 @@ on_midi_input (unused (GIOChannel *channel),
            break;
        }
     }
-    
+
+    if (need_redraw)
+       gtk_widget_queue_draw (scherzo->window);
+
     /* Return TRUE to continue to get called in the future. */
     return TRUE;
 }
@@ -416,7 +422,7 @@ main (int argc, char *argv[])
     scherzo.ctx = talloc_new (NULL);
 
     scherzo.score = score_create (scherzo.ctx);
-    scherzo.staff_height = 48;
+    scherzo.staff_height = 100;
     score_set_staff_height (scherzo.score, scherzo.staff_height);
 
     score_add_brace (scherzo.score, 2);
@@ -453,7 +459,7 @@ main (int argc, char *argv[])
 
     scherzo.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 
-    gtk_window_set_default_size (GTK_WINDOW (scherzo.window), 600, 400);
+    gtk_window_set_default_size (GTK_WINDOW (scherzo.window), 1000, 600);
 
     g_signal_connect (scherzo.window, "delete-event",
                      G_CALLBACK (on_delete_event_quit), NULL);