Better headers in guide view

Author: nyalldawson

python/core/layout/qgslayoutguidecollection.sip

@@ -164,6 +164,8 @@ class QgsLayoutGuideCollection : QAbstractTableModel
 
     virtual Qt::ItemFlags flags( const QModelIndex &index ) const;
 
+     virtual QVariant headerData( int section, Qt::Orientation orientation,
+                         int role = Qt::DisplayRole ) const;
 
     void addGuide( QgsLayoutGuide *guide /Transfer/ );
 %Docstring

src/core/layout/qgslayoutguidecollection.cpp

@@ -152,7 +152,8 @@ QgsLayoutGuideCollection::QgsLayoutGuideCollection( QgsLayout *layout )
   : QAbstractTableModel( layout )
   , mLayout( layout )
 {
-
+  QFont f;
+  mHeaderSize = QFontMetrics( f ).width( "XX" );
 }
 
 QgsLayoutGuideCollection::~QgsLayoutGuideCollection()
@@ -276,6 +277,17 @@ Qt::ItemFlags QgsLayoutGuideCollection::flags( const QModelIndex &index ) const
   return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable;
 }
 
+QVariant QgsLayoutGuideCollection::headerData( int section, Qt::Orientation orientation, int role ) const
+{
+  if ( role == Qt::DisplayRole )
+    return QVariant();
+  else if ( role == Qt::SizeHintRole )
+  {
+    return QSize( mHeaderSize, mHeaderSize );
+  }
+  return QAbstractTableModel::headerData( section, orientation, role );
+}
+
 void QgsLayoutGuideCollection::addGuide( QgsLayoutGuide *guide )
 {
   guide->setLayout( mLayout );

src/core/layout/qgslayoutguidecollection.h

@@ -189,6 +189,8 @@ class CORE_EXPORT QgsLayoutGuideCollection : public QAbstractTableModel
     QVariant data( const QModelIndex &index, int role ) const override;
     bool setData( const QModelIndex &index, const QVariant &value, int role ) override;
     Qt::ItemFlags flags( const QModelIndex &index ) const override;
+    QVariant headerData( int section, Qt::Orientation orientation,
+                         int role = Qt::DisplayRole ) const override;
 
     /**
      * Adds a \a guide to the collection. Ownership of the guide is transferred to the
@@ -213,6 +215,7 @@ class CORE_EXPORT QgsLayoutGuideCollection : public QAbstractTableModel
     QgsLayout *mLayout = nullptr;
 
     QList< QgsLayoutGuide * > mGuides;
+    int mHeaderSize = 0;
 
 };