SwingX: JXBusyLabel support (#8)

flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/ui/FlatBusyLabelUI.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2019 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.formdev.flatlaf.swingx.ui;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import javax.swing.JComponent;
+import javax.swing.JLabel;
+import javax.swing.UIManager;
+import javax.swing.plaf.ComponentUI;
+import org.jdesktop.swingx.JXBusyLabel;
+import org.jdesktop.swingx.plaf.basic.BasicBusyLabelUI;
+import com.formdev.flatlaf.FlatLaf;
+import com.formdev.flatlaf.ui.FlatUIUtils;
+
+//TODO scale busy spinner
+
+/**
+ * Provides the Flat LaF UI delegate for {@link org.jdesktop.swingx.JXBusyLabel}.
+ *
+ * @author Karl Tauber
+ */
+public class FlatBusyLabelUI
+	extends BasicBusyLabelUI
+{
+	private Color disabledForeground;
+
+	public static ComponentUI createUI( JComponent c ) {
+		return new FlatBusyLabelUI( (JXBusyLabel) c );
+	}
+
+	public FlatBusyLabelUI( JXBusyLabel busyLabel ) {
+		super( busyLabel );
+	}
+
+	@Override
+	protected void installDefaults( JLabel c ) {
+		super.installDefaults( c );
+
+		disabledForeground = UIManager.getColor( "Label.disabledForeground" );
+
+		// force recreation of busy painter for correct colors when switching LaF
+		if( c.getIcon() != null ) {
+			JXBusyLabel busyLabel = (JXBusyLabel) c;
+			boolean oldBusy = busyLabel.isBusy();
+			busyLabel.setBusy( false );
+			busyLabel.setBusyPainter( null );
+			busyLabel.setBusy( oldBusy );
+		}
+	}
+
+	@Override
+	protected void uninstallDefaults( JLabel c ) {
+		super.uninstallDefaults( c );
+
+		disabledForeground = null;
+	}
+
+	@Override
+	protected void paintDisabledText( JLabel l, Graphics g, String s, int textX, int textY ) {
+		int mnemIndex = FlatLaf.isShowMnemonics() ? l.getDisplayedMnemonicIndex() : -1;
+		g.setColor( disabledForeground );
+		FlatUIUtils.drawStringUnderlineCharAt( l, g, s, mnemIndex, textX, textY );
+	}
+}