Accessibility: Improve speech output for notes and common elements

Screen readers will now announce:

- [Fix #312625] Notehead group type (e.g. "cross", "triangle", etc.).

- [Fix #312628] When notes or rests use cross-staff notation.

- [Fix #312627] When elements are invisible.

- [Fix #307442] Tuplet length for custom tuplets (more than 9 notes).

Also speeds up speech output by stripping some punctuation from element
names to prevent unnecessary pauses.

src/engraving/accessibility/accessibleitem.cpp

@@ -25,14 +25,27 @@
 #include "../libmscore/score.h"
 #include "../libmscore/measure.h"
 
+#include "translation.h"
 #include "log.h"
 
+using namespace mu;
 using namespace mu::engraving;
 using namespace mu::accessibility;
 using namespace mu::engraving;
 
 bool AccessibleItem::enabled = true;
 
+static QString readable(QString s)
+{
+    // Remove undesired pauses in screen reader speech output
+    s.remove(u':');
+
+    // Handle desired pauses
+    s.replace(u';', u','); // NVDA doesn't pause for semicolon
+
+    return s;
+}
+
 AccessibleItem::AccessibleItem(EngravingItem* e, Role role)
     : m_element(e), m_role(role)
 {
@@ -169,9 +182,15 @@ QString AccessibleItem::accessibleName() const
     QString staffInfo = root ? root->staffInfo() : "";
     QString barsAndBeats = m_element->formatBarsAndBeats();
 
-    return QString("%1%2%3").arg(!staffInfo.isEmpty() ? (staffInfo + "; ") : "")
-           .arg(m_element->accessibleInfo().toQString())
-           .arg(!barsAndBeats.isEmpty() ? ("; " + barsAndBeats) : "");
+    barsAndBeats.remove(u';'); // Too many pauses in speech
+
+    QString name = QString("%1%2%3%4")
+                   .arg(!staffInfo.isEmpty() ? (staffInfo + "; ") : "")
+                   .arg(m_element->screenReaderInfo().toQString())
+                   .arg(m_element->visible() ? "" : " " + qtrc("engraving", "invisible"))
+                   .arg(!barsAndBeats.isEmpty() ? ("; " + barsAndBeats) : "");
+
+    return readable(name);
 }
 
 QString AccessibleItem::accessibleDescription() const
@@ -185,7 +204,7 @@ QString AccessibleItem::accessibleDescription() const
     result = accessibleName() + " ";
 #endif
 
-    result += m_element->accessibleExtraInfo();
+    result += readable(m_element->accessibleExtraInfo());
     return result;
 }
 

src/engraving/libmscore/chordrest.cpp

@@ -683,7 +683,8 @@ String ChordRest::durationUserName() const
             tupletType = mtrc("engraving", "Nonuplet");
             break;
         default:
-            tupletType = mtrc("engraving", "Custom tuplet");
+            //: %1 is tuplet ratio numerator (i.e. the number of notes in the tuplet)
+            tupletType = mtrc("engraving", "%1 note tuplet").arg(tuplet()->ratio().numerator());
         }
     }
     String dotString;

src/engraving/libmscore/note.cpp

@@ -3332,7 +3332,15 @@ String Note::screenReaderInfo() const
         pitchName = mtrc("engraving", "%1; String: %2; Fret: %3")
                     .arg(tpcUserName(true), String::number(string() + 1), String::number(fret()));
     } else {
-        pitchName = tpcUserName(true);
+        pitchName = _headGroup == NoteHeadGroup::HEAD_NORMAL
+                    ? tpcUserName(true)
+                    //: head as in note head. %1 is head type (circle, cross, etc.). %2 is pitch (e.g. Db4).
+                    : mtrc("engraving", "%1 head %2").arg(subtypeName()).arg(tpcUserName(true));
+        if (chord()->staffMove() < 0) {
+            duration += u"; " + mtrc("engraving", "Cross-staff above");
+        } else if (chord()->staffMove() > 0) {
+            duration += u"; " + mtrc("engraving", "Cross-staff below");
+        }
     }
     return String(u"%1 %2 %3%4").arg(noteTypeUserName(), pitchName, duration, (chord()->isGrace() ? u"" : String(u"; %1").arg(voice)));
 }

src/engraving/libmscore/rest.cpp

@@ -863,8 +863,14 @@ String Rest::screenReaderInfo() const
 {
     Measure* m = measure();
     bool voices = m ? m->hasVoices(staffIdx()) : false;
-    String voice = voices ? mtrc("engraving", "Voice: %1").arg(track() % VOICES + 1) : u"";
-    return String(u"%1 %2 %3").arg(EngravingItem::accessibleInfo(), durationUserName(), voice);
+    String voice = voices ? (u"; " + mtrc("engraving", "Voice: %1").arg(track() % VOICES + 1)) : u"";
+    String crossStaff;
+    if (staffMove() < 0) {
+        crossStaff = u"; " + mtrc("engraving", "Cross-staff above");
+    } else if (staffMove() > 0) {
+        crossStaff = u"; " + mtrc("engraving", "Cross-staff below");
+    }
+    return String(u"%1 %2%3%4").arg(EngravingItem::accessibleInfo(), durationUserName(), crossStaff, voice);
 }
 
 //---------------------------------------------------------