Move FlatLaf installing to UIUtils.installFlatLafInfos() helper method

Author: tpietzsch

src/main/java/bdv/BigDataViewer.java

@@ -29,17 +29,14 @@
 package bdv;
 
 import bdv.tools.PreferencesDialog;
+import bdv.ui.UIUtils;
 import bdv.ui.keymap.Keymap;
 import bdv.ui.keymap.KeymapManager;
 import bdv.ui.keymap.KeymapSettingsPage;
 import bdv.viewer.ConverterSetups;
 import bdv.viewer.ViewerState;
 import bdv.ui.appearance.AppearanceManager;
 import bdv.ui.appearance.AppearanceSettingsPage;
-import com.formdev.flatlaf.FlatDarculaLaf;
-import com.formdev.flatlaf.FlatDarkLaf;
-import com.formdev.flatlaf.FlatIntelliJLaf;
-import com.formdev.flatlaf.FlatLightLaf;
 import dev.dirs.ProjectDirectories;
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -778,16 +775,12 @@ public void collapseCardPanel()
 
 	public static void main( final String[] args )
 	{
-		final String fn = "/Users/pietzsch/workspace/data/111010_weber_full.xml";
+		final String fn = "/Users/pietzsch/workspace/data/111010_weber_resave.xml";
 		try
 		{
 			System.setProperty( "apple.laf.useScreenMenuBar", "true" );
 //			System.setProperty( "apple.awt.application.appearance", "system" );
-
-			FlatLightLaf.installLafInfo();
-			FlatDarkLaf.installLafInfo();
-			FlatDarculaLaf.installLafInfo();
-			FlatIntelliJLaf.installLafInfo();
+			UIUtils.installFlatLafInfos();
 
 			System.out.println( "reading config files from \"" + configDir + "\"" );
 			final BigDataViewer bdv = open( fn, new File( fn ).getName(), new ProgressWriterConsole(), ViewerOptions.options() );

src/main/java/bdv/ui/UIUtils.java

@@ -28,15 +28,22 @@
  */
 package bdv.ui;
 
+import com.formdev.flatlaf.FlatDarculaLaf;
+import com.formdev.flatlaf.FlatDarkLaf;
+import com.formdev.flatlaf.FlatIntelliJLaf;
+import com.formdev.flatlaf.FlatLightLaf;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Dimension;
 import java.awt.Font;
 import java.awt.FontMetrics;
 import java.awt.Graphics;
 import java.awt.Rectangle;
+import java.util.Arrays;
+import java.util.Set;
 import java.util.WeakHashMap;
 
+import java.util.stream.Collectors;
 import javax.swing.UIManager;
 
 import com.formdev.flatlaf.util.UIScale;
@@ -253,4 +260,20 @@ public static boolean getUIBoolean( final String key, final boolean defaultValue
 		else
 			return defaultValue;
 	}
+
+	public static synchronized void installFlatLafInfos()
+	{
+		final Set< String > lafNames = Arrays
+				.stream( UIManager.getInstalledLookAndFeels() )
+				.map( UIManager.LookAndFeelInfo::getName )
+				.collect( Collectors.toSet() );
+		if ( !lafNames.contains( FlatLightLaf.NAME ) )
+			FlatLightLaf.installLafInfo();
+		if ( !lafNames.contains( FlatDarkLaf.NAME ) )
+			FlatDarkLaf.installLafInfo();
+		if ( !lafNames.contains( FlatDarculaLaf.NAME ) )
+			FlatDarculaLaf.installLafInfo();
+		if ( !lafNames.contains( FlatIntelliJLaf.NAME ) )
+			FlatIntelliJLaf.installLafInfo();
+	}
 }