Hidden work to support show meta text, in progress.

libseq66/include/midi/event.hpp

@@ -437,15 +437,14 @@ class event
     event & operator = (const event & rhs);
     virtual ~event ();
 
-    void prep_for_send (midipulse tick, const event & source);
-
     /*
      * Operator overload, the only one needed for sorting events in a list
      * or a map.
      */
 
     bool operator < (const event & rhsevent) const;
     bool match (const event & target) const;
+    void prep_for_send (midipulse tick, const event & source);
 
     void set_input_bus (bussbyte b)
     {

libseq66/include/midi/eventlist.hpp

@@ -189,6 +189,12 @@ class eventlist
 
     bool m_has_time_signature;
 
+    /**
+     *  Another flag.
+     */
+
+    bool m_has_key_signature;
+
     /**
      *  Stores the setting of usr().new_pattern_wraparound().  It is used in
      *  the link_new() function.
@@ -385,11 +391,7 @@ class eventlist
     bool randomize_selected (midibyte status, int plus_minus);
     bool randomize_selected_notes (int jitter, int range);
     bool jitter_notes (int jitter);
-    bool link_notes
-    (
-        event::iterator eon,
-        event::iterator eoff
-    );
+    bool link_notes (event::iterator eon, event::iterator eoff);
     void link_tempos ();
     void clear_tempo_links ();
     bool mark_selected ();

libseq66/include/util/strfunctions.hpp

@@ -27,7 +27,7 @@
  *
  * \author        Chris Ahlstrom
  * \date          2018-11-23
- * \updates       2023-04-27
+ * \updates       2023-04-29
  * \version       $Revision$
  *
  *    Also see the strfunctions.cpp module.
@@ -85,15 +85,18 @@ extern bool strncompare
 extern bool strcasecompare (const std::string & a, const std::string & b);
 extern std::string & ltrim
 (
-    std::string & str, const std::string & chars = SEQ66_TRIM_CHARS
+    std::string & str,
+    const std::string & chars = SEQ66_TRIM_CHARS
 );
 extern std::string & rtrim
 (
-    std::string & str, const std::string & chars = SEQ66_TRIM_CHARS
+    std::string & str,
+    const std::string & chars = SEQ66_TRIM_CHARS
 );
 extern std::string trim
 (
-    const std::string & str, const std::string & chars = SEQ66_TRIM_CHARS
+    const std::string & str,
+    const std::string & chars = SEQ66_TRIM_CHARS
 );
 extern std::string string_replace
 (
@@ -125,6 +128,7 @@ extern double string_to_double
 );
 extern std::string double_to_string(double value, int precision = 0);
 extern long string_to_long (const std::string & s, long defalt = 0L);
+extern std::string long_to_string (long value);
 extern unsigned long string_to_unsigned_long
 (
     const std::string & s, unsigned long defalt = 0UL

libseq66/src/midi/eventlist.cpp

@@ -58,6 +58,7 @@ eventlist::eventlist () :
     m_is_modified           (false),
     m_has_tempo             (false),
     m_has_time_signature    (false),
+    m_has_key_signature     (false),
     m_link_wraparound       (usr().new_pattern_wraparound())
 {
     // No code needed
@@ -79,6 +80,7 @@ eventlist::eventlist (const eventlist & rhs) :
     m_is_modified           (rhs.m_is_modified),
     m_has_tempo             (rhs.m_has_tempo),
     m_has_time_signature    (rhs.m_has_time_signature),
+    m_has_key_signature     (false),
     m_link_wraparound       (rhs.m_link_wraparound)
 {
     // no code
@@ -98,6 +100,7 @@ eventlist::operator = (const eventlist & rhs)
         m_is_modified           = rhs.m_is_modified;
         m_has_tempo             = rhs.m_has_tempo;
         m_has_time_signature    = rhs.m_has_time_signature;
+        m_has_key_signature     = rhs.m_has_key_signature;
         m_link_wraparound       = rhs.m_link_wraparound;
     }
     return *this;
@@ -182,6 +185,9 @@ eventlist::append (const event & e)
     if (e.is_time_signature())
         m_has_time_signature = true;
 
+    if (e.is_key_signature())
+        m_has_key_signature = true;
+
     return true;
 }
 
@@ -356,13 +362,11 @@ eventlist::link_new (bool wrap)
                 {
                     if (link_notes(on, off))
                     {
-// #if defined USE_NEW_CODE
                         if (! wrap_em)
                         {
                             if (off->timestamp() < on->timestamp())
                                 off->set_timestamp(get_length() - 1);
                         }
-// #endif
                         break;
                     }
                     ++off;
@@ -480,12 +484,7 @@ void
 eventlist::clear_links ()
 {
     for (auto & e : m_events)
-    {
-#if 0
-        if (not_nullptr(&e))                /* ca 2023-04-24                */
-#endif
-            e.clear_links();                /* does unmark() and unlink()   */
-    }
+        e.clear_links();                    /* does unmark() and unlink()   */
 }
 
 int
@@ -804,7 +803,7 @@ eventlist::adjust_timestamp (event & er, midipulse delta_tick)
                 result = note_off_margin();
         }
     }
-    else                                /* if (wrap)                    */
+    else                                    /* if (wrap)                    */
     {
         if (result == seqlength)
         {
@@ -1786,8 +1785,6 @@ eventlist::select_events
     {
         if (event_in_range(er, status, tick_s, tick_f))
         {
-            // midibyte d0, d1;
-            // er.get_data(d0, d1);
             if (er.is_desired(status, cc))
             {
                 if (action == select::selecting)

libseq66/src/util/strfunctions.cpp

@@ -25,7 +25,7 @@
  * \library       seq66 application
  * \author        Chris Ahlstrom
  * \date          2018-11-24
- * \updates       2023-04-27
+ * \updates       2023-04-29
  * \version       $Revision$
  *
  *    We basically include only the functions we need for Seq66, not
@@ -842,6 +842,14 @@ string_to_long (const std::string & s, long defalt)
     return result;
 }
 
+std::string
+long_to_string (long value)
+{
+    char temp[32];
+    (void) snprintf(temp, sizeof temp, "%ld", value);
+    return std::string(temp);
+}
+
 /**
  *  Converts a string to an unsigned long integer.
  */
@@ -1084,7 +1092,7 @@ tokenize_stanzas
         BR = brackets[1];
         CBR = brackets[1];
     }
-    tokens.clear();                                         /* set size = 0 */
+    tokens.clear();
     bleft = source.find_first_of(BL, bleft);
     if (bleft != std::string::npos)
     {

seq_qt5/forms/qsessionframe.ui

@@ -643,16 +643,22 @@ author and dates. The size limit is 1024 characters.</string>
      <height>26</height>
     </rect>
    </property>
+   <property name="toolTip">
+    <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Changes the current track number, ranging&lt;/p&gt;&lt;p&gt;from 0 to the highest pattern.  Then, if&lt;/p&gt;&lt;p&gt;any Meta Text is present in that pattern,&lt;/p&gt;&lt;p&gt;then the first one is shown.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+   </property>
   </widget>
   <widget class="QScrollBar" name="scrollBarTextNumber">
    <property name="geometry">
     <rect>
-     <x>110</x>
+     <x>120</x>
      <y>380</y>
-     <width>61</width>
+     <width>41</width>
      <height>26</height>
     </rect>
    </property>
+   <property name="toolTip">
+    <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Moves forward (not yet backward) to the&lt;/p&gt;&lt;p&gt;next Meta Text event, if any.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+   </property>
    <property name="orientation">
     <enum>Qt::Horizontal</enum>
    </property>
@@ -672,6 +678,9 @@ author and dates. The size limit is 1024 characters.</string>
      <height>22</height>
     </size>
    </property>
+   <property name="toolTip">
+    <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Displays the time stamp of the current&lt;/p&gt;&lt;p&gt;Meta Text event.  Editable as well.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+   </property>
   </widget>
   <widget class="QLabel" name="labelTimeStamp">
    <property name="geometry">

seq_qt5/include/qsessionframe.hpp

@@ -27,7 +27,7 @@
  * \library       seq66 application
  * \author        Chris Ahlstrom
  * \date          2020-08-24
- * \updates       2023-04-29
+ * \updates       2023-04-30
  * \license       GNU GPLv2 or above
  *
  *  We want to be able to survey the existing mute-groups.
@@ -93,6 +93,9 @@ class qsessionframe : public QFrame
         return m_performer;
     }
 
+    void sync_track_label ();
+    void sync_track_high ();
+
 protected:                          // overrides of event handlers
 
     virtual void keyPressEvent (QKeyEvent *) override;
@@ -105,6 +108,8 @@ private slots:
     void slot_flag_reload ();
     void slot_songinfo_change ();
     void slot_save_info ();
+    void slot_track_number (int trk);
+    void slot_text_number (int textnum);
     void slot_macros_active ();
     void slot_macro_pick (const QString &);
     void slot_log_file ();
@@ -121,8 +126,32 @@ private slots:
 
     qsmainwnd * m_main_window;
 
+    /**
+     *  The main player :-).
+     */
+
     performer & m_performer;
 
+    /**
+     *  Holds the currently selected track, needed when the track selection
+     *  changes in order to clear the "next match" flag.
+     */
+
+    int m_current_track;
+
+    /**
+     *  A counter for Meta Text events when a track contains more than one.
+     */
+
+    int m_current_text_number;
+
+    /**
+     *  The highest-numbered track, plus one, kept synchronized with
+     *  performer::m_sequence_high.
+     */
+
+    int m_track_high;
+
 };
 
 }               // namespace seq66