[gui] Fix style manager's add button when the 'all' tab is selected

python/gui/auto_generated/symbology/qgsstylemanagerdialog.sip.in

@@ -279,7 +279,7 @@ Populates the list view with color ramps of the current type with the given name
     int currentItemType();
     QString currentItemName();
 
-    bool addSymbol();
+    bool addSymbol( int symbolType = -1 );
 %Docstring
 add a new symbol to style
 %End

src/gui/symbology/qgsstylemanagerdialog.cpp

@@ -16,7 +16,6 @@
 #include "qgsstylemanagerdialog.h"
 #include "qgsstylesavedialog.h"
 
-#include "qgsstyle.h"
 #include "qgssymbol.h"
 #include "qgssymbollayerutils.h"
 #include "qgscolorramp.h"
@@ -296,9 +295,28 @@ QgsStyleManagerDialog::QgsStyleManagerDialog( QgsStyle *style, QWidget *parent,
     QStringList rampTypes;
     rampTypes << tr( "Gradient" ) << tr( "Color presets" ) << tr( "Random" ) << tr( "Catalog: cpt-city" );
     rampTypes << tr( "Catalog: ColorBrewer" );
+
+    mMenuBtnAddItemAll = new QMenu( this );
     mMenuBtnAddItemColorRamp = new QMenu( this );
+
+    QAction *item = new QAction( tr( "Marker" ), this );
+    connect( item, &QAction::triggered, this, [ = ]( bool ) { addSymbol( QgsSymbol::Marker ); } );
+    mMenuBtnAddItemAll->addAction( item );
+    item = new QAction( tr( "Line" ), this );
+    connect( item, &QAction::triggered, this, [ = ]( bool ) { addSymbol( QgsSymbol::Line ); } );
+    mMenuBtnAddItemAll->addAction( item );
+    item = new QAction( tr( "Fill" ), this );
+    connect( item, &QAction::triggered, this, [ = ]( bool ) { addSymbol( QgsSymbol::Fill ); } );
+    mMenuBtnAddItemAll->addAction( item );
+    mMenuBtnAddItemAll->addSeparator();
     for ( const QString &rampType : qgis::as_const( rampTypes ) )
+    {
+      item = new QAction( rampType, this );
+      connect( item, &QAction::triggered, this, [ = ]( bool ) { addColorRamp( item ); } );
+      mMenuBtnAddItemAll->addAction( item );
       mMenuBtnAddItemColorRamp->addAction( new QAction( rampType, this ) );
+    }
+
     connect( mMenuBtnAddItemColorRamp, &QMenu::triggered,
              this, static_cast<bool ( QgsStyleManagerDialog::* )( QAction * )>( &QgsStyleManagerDialog::addColorRamp ) );
   }
@@ -417,7 +435,20 @@ void QgsStyleManagerDialog::tabItemType_currentChanged( int )
   // when in Color Ramp tab, add menu to add item button and hide "Export symbols as PNG/SVG"
   const bool isSymbol = currentItemType() != 3;
   searchBox->setPlaceholderText( isSymbol ? tr( "Filter symbols…" ) : tr( "Filter color ramps…" ) );
-  btnAddItem->setMenu( isSymbol || mReadOnly ? nullptr : mMenuBtnAddItemColorRamp );
+
+  if ( !mReadOnly && !isSymbol ) // color ramp tab
+  {
+    btnAddItem->setMenu( mMenuBtnAddItemColorRamp );
+  }
+  else if ( !mReadOnly && tabItemType->currentIndex() == 0 ) // all symbols tab
+  {
+    btnAddItem->setMenu( mMenuBtnAddItemAll );
+  }
+  else
+  {
+    btnAddItem->setMenu( nullptr );
+  }
+
   actnExportAsPNG->setVisible( isSymbol );
   actnExportAsSVG->setVisible( isSymbol );
 
@@ -701,12 +732,12 @@ void QgsStyleManagerDialog::addItem()
   }
 }
 
-bool QgsStyleManagerDialog::addSymbol()
+bool QgsStyleManagerDialog::addSymbol( int symbolType )
 {
   // create new symbol with current type
   QgsSymbol *symbol = nullptr;
   QString name = tr( "new symbol" );
-  switch ( currentItemType() )
+  switch ( symbolType == -1 ? currentItemType() : symbolType )
   {
     case QgsSymbol::Marker:
       symbol = new QgsMarkerSymbol();

src/gui/symbology/qgsstylemanagerdialog.h

@@ -297,7 +297,7 @@ class GUI_EXPORT QgsStyleManagerDialog : public QDialog, private Ui::QgsStyleMan
     QString currentItemName();
 
     //! add a new symbol to style
-    bool addSymbol();
+    bool addSymbol( int symbolType = -1 );
     //! add a new color ramp to style
     bool addColorRamp();
 
@@ -381,6 +381,9 @@ class GUI_EXPORT QgsStyleManagerDialog : public QDialog, private Ui::QgsStyleMan
     //! Menu for the "Add item" toolbutton when in colorramp mode
     QMenu *mMenuBtnAddItemColorRamp = nullptr;
 
+    //! Menu for the "Add item" toolbutton when in all symbols mode
+    QMenu *mMenuBtnAddItemAll = nullptr;
+
     QAction *mActionCopyToDefault = nullptr;
 
     int mBlockGroupUpdates = 0;