Sequencer - Auto-select tracks button

ui-sequencer.cc

@@ -368,9 +368,14 @@ struct T_SyncViewImpl_
 	void displayInputSelector( ) noexcept;
 	void displayOverrideSelector( ) noexcept;
 
+	void clearSelectedTracks( ) noexcept;
+	void autoselectTracks( ) noexcept;
+
 	// Helpers for selecting overrides
 	static bool areOverrideInputsConsistent(
 			A_SyncOverride const& ov ) noexcept;
+	static bool wouldInputsNeedAdjustment(
+			A_SyncOverride const& ov ) noexcept;
 	bool areOverrideInputsDisplayed(
 			A_SyncOverride const& ov ) const noexcept;
 	void overrideTrackToggled(
@@ -680,7 +685,7 @@ void T_SyncViewImpl_::displayToolbar( ) noexcept
 		showLabels = !showLabels;
 	}
 	SameLine( );
-	if ( ToolbarButton( ICON_FA_BARS , BtSize ,
+	if ( ToolbarButton( ICON_FA_LIST , BtSize ,
 			"Select inputs or sets thereof to display & edit." ) ) {
 		const bool displaySelector{ sub == SW_INPUT_SELECTOR
 			|| sub == SW_OVERRIDE_SELECTOR };
@@ -690,8 +695,11 @@ void T_SyncViewImpl_::displayToolbar( ) noexcept
 	SameLine( );
 	if ( ToolbarButton( ICON_FA_BAN , BtSize , "Clear selected tracks." ,
 				sTracks.size( ) != 0 ) ) {
-		sTracks.clear( );
+		clearSelectedTracks( );
-		sInputs.clear( );
+	}
+	SameLine( );
+	if ( ToolbarButton( ICON_FA_COG , BtSize , "Select tracks automatically." ) ) {
+		autoselectTracks( );
 	}
 }
 
@@ -1661,6 +1669,31 @@ bool T_SyncViewImpl_::areOverrideInputsConsistent(
 	return true;
 }
 
+bool T_SyncViewImpl_::wouldInputsNeedAdjustment(
+		A_SyncOverride const& ov ) noexcept
+{
+	auto& sync{ Common::Sync( ) };
+	auto const& in{ ov.inputNames( ) };
+	auto nNulls{ 0u };
+	for ( auto i = 0u ; i < in.size( ) - 1 ; i ++ ) {
+		T_SyncCurve const* const c0{ sync.getCurve( in[ i ] ) };
+		if ( !c0 ) {
+			nNulls ++;
+			continue;
+		}
+		for ( auto j = i + 1 ; j < in.size( ) ; j ++ ) {
+			T_SyncCurve const* const c1{ sync.getCurve( in[ j ] ) };
+			if ( !c1 || c0->matches( *c1 ) != E_SyncCurveMatch::IDENTICAL ) {
+				return false;
+			}
+		}
+	}
+	if ( !sync.getCurve( in[ in.size( ) - 1 ] ) ) {
+		nNulls ++;
+	}
+	return nNulls != 0 && nNulls != in.size( );
+}
+
 bool T_SyncViewImpl_::areOverrideInputsDisplayed(
 		A_SyncOverride const& ov ) const noexcept
 {
@@ -1700,6 +1733,52 @@ void T_SyncViewImpl_::overrideTrackToggled(
 
 /*----------------------------------------------------------------------------*/
 
+void T_SyncViewImpl_::clearSelectedTracks( ) noexcept
+{
+	sTracks.clear( );
+	sInputs.clear( );
+	selId.clear( );
+	selSegment.clear( );
+	selPoint.clear( );
+}
+
+void T_SyncViewImpl_::autoselectTracks( ) noexcept
+{
+	clearSelectedTracks( );
+
+	auto& sync{ Common::Sync( ) };
+	sync.visitOverrides( [&]( T_SyncOverrideVisitor::T_Element element , const bool exit ) {
+		if ( element.hasType< T_SyncOverrideSection* >( ) || !exit ) {
+			return true;
+		}
+
+		auto const& ov{ *element.value< A_SyncOverride* >( ) };
+		if ( !areOverrideInputsConsistent( ov ) ) {
+			return true;
+		}
+		if ( wouldInputsNeedAdjustment( ov ) ) {
+			return true;
+		}
+
+		auto const& in{ ov.inputNames( ) };
+		sTracks.add( T_SyncTrackId{ ov.id( ) , true } );
+		for ( auto i = 0u ; i < in.size( ) ; i ++ ) {
+			sInputs.add( in[ i ] , true );
+		}
+
+		return true;
+	} );
+
+	for ( auto const& n : sync.inputNames( ) ) {
+		if ( !sInputs.contains( n ) ) {
+			sTracks.add( T_SyncTrackId{ n , false } );
+			sInputs.add( n , false );
+		}
+	}
+}
+
+/*----------------------------------------------------------------------------*/
+
 void T_SyncViewImpl_::displayTrackWindow( ) noexcept
 {
 	using namespace ImGui;