Show tooltip for long text in MIDI panel (tracks table)

mscore/CMakeLists.txt

@@ -154,7 +154,7 @@ QT4_WRAP_CPP (mocs
       importmidi_operation.h importmidi_quant.h importmidi_chord.h
       importmidi_tuplet.h importmidi_inner.h importmidi_data.h importmidi_swing.h
       debugger/debugger.h importmidi_fraction.h importmidi_drum.h
-      importmidi_lrhand.h importmidi_lyrics.h
+      importmidi_lrhand.h importmidi_lyrics.h importmidi_trview.h
       ${OMR_MOCS}
       ${SCRIPT_MOCS}
       )
@@ -269,7 +269,7 @@ add_executable ( ${ExecutableName}
       importmidi_opmodel.cpp importmidi_trmodel.cpp importmidi_opdelegate.cpp
       importmidi_meter.cpp importmidi_quant.cpp importmidi_tuplet.cpp importmidi_chord.cpp
       importmidi_data.cpp importmidi_swing.cpp importmidi_fraction.cpp importmidi_drum.cpp
-      importmidi_clef.cpp importmidi_lrhand.cpp importmidi_lyrics.cpp
+      importmidi_clef.cpp importmidi_lrhand.cpp importmidi_lyrics.cpp importmidi_trview.cpp
 
       ${OMR_FILES}
       ${AUDIO}

mscore/importmidi_panel.ui

@@ -196,7 +196,7 @@
       <property name="handleWidth">
        <number>2</number>
       </property>
-      <widget class="QTableView" name="tableViewTracks">
+      <widget class="TracksView" name="tableViewTracks">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
          <horstretch>1</horstretch>
@@ -235,6 +235,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>TracksView</class>
+   <extends>QTableView</extends>
+   <header>mscore/importmidi_trview.h</header>
+  </customwidget>
+ </customwidgets>
  <resources>
   <include location="musescore.qrc"/>
  </resources>

mscore/importmidi_trmodel.cpp

@@ -417,6 +417,18 @@ QVariant TracksModel::data(const QModelIndex &index, int role) const
             case Qt::TextAlignmentRole:
                   return Qt::AlignCenter;
                   break;
+            case Qt::ToolTipRole:
+                  if (trackIndex != -1) {
+                        switch (index.column()) {
+                              case TrackCol::STAFF_NAME:
+                                    return tracksData_[trackIndex].meta.staffName;
+                              case TrackCol::INSTRUMENT:
+                                    return tracksData_[trackIndex].meta.instrumentName;
+                              default:
+                                    break;
+                              }
+                        }
+                  break;
             default:
                   break;
             }

mscore/importmidi_trview.cpp

@@ -0,0 +1,28 @@
+#include "importmidi_trview.h"
+
+
+TracksView::TracksView(QWidget *parent)
+      : QTableView(parent)
+      {
+      }
+
+// show tooltip if the text is wider than the table cell
+
+bool TracksView::viewportEvent(QEvent *event)
+      {
+      if (event->type() == QEvent::ToolTip) {
+            QHelpEvent *helpEvent = static_cast<QHelpEvent *>(event);
+            QModelIndex index = indexAt(helpEvent->pos());
+            if (index.isValid()) {
+                  QSize sizeHint = itemDelegate(index)->sizeHint(viewOptions(), index);
+                  QRect rItem(0, 0, sizeHint.width(), sizeHint.height());
+                  QRect rVisual = visualRect(index);
+                  if (rItem.width() <= rVisual.width()) {
+                        QToolTip::hideText();
+                        return false;
+                        }
+                  }
+            }
+
+      return QTableView::viewportEvent(event);
+      }

mscore/importmidi_trview.h

@@ -0,0 +1,17 @@
+#ifndef IMPORTMIDI_TRVIEW_H
+#define IMPORTMIDI_TRVIEW_H
+
+#include <QTableView>
+
+
+class TracksView : public QTableView
+      {
+   public:
+      explicit TracksView(QWidget *parent);
+
+   protected:
+      bool viewportEvent(QEvent *event);
+      };
+
+
+#endif // IMPORTMIDI_TRVIEW_H