JIDE: support JideLabel to fix wrong text colors in dark themes

flatlaf-jide-oss/README.md

@@ -7,6 +7,7 @@ This addon for FlatLaf adds support for **some**
 Following JIDE Common Layer components are currently supported by this addon:
 
 - `JideButton`
+- `JideLabel`
 - `JidePopupMenu`
 - `JideTabbedPane`
 - `JideToggleButton`

flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/ui/FlatJideLabelUI.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright 2021 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
+ *
+ *     https://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.jideoss.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 com.formdev.flatlaf.FlatLaf;
+import com.formdev.flatlaf.ui.FlatUIUtils;
+import com.jidesoft.plaf.LookAndFeelFactory;
+import com.jidesoft.plaf.basic.BasicJideLabelUI;
+
+/**
+ * Provides the Flat LaF UI delegate for {@link com.jidesoft.swing.JideLabel}.
+ *
+ * @author Karl Tauber
+ */
+public class FlatJideLabelUI
+	extends BasicJideLabelUI
+{
+	private Color disabledForeground;
+
+	private boolean defaults_initialized = false;
+
+	public static ComponentUI createUI( JComponent c ) {
+		// usually JIDE would invoke this in JideLabel.updateUI(),
+		// but it does not because FlatLaf already has added the UI class to the UI defaults
+		LookAndFeelFactory.installJideExtension();
+
+		return FlatUIUtils.createSharedUI( FlatJideLabelUI.class, FlatJideLabelUI::new );
+	}
+
+	@Override
+	protected void installDefaults( JLabel c ) {
+		super.installDefaults( c );
+
+		if( !defaults_initialized ) {
+			disabledForeground = UIManager.getColor( "JideLabel.disabledForeground" );
+
+			defaults_initialized = true;
+		}
+	}
+
+	@Override
+	protected void uninstallDefaults( JLabel c ) {
+		super.uninstallDefaults( c );
+		defaults_initialized = false;
+	}
+
+	@Override
+	protected void paintEnabledText( JLabel l, Graphics g, String s, int textX, int textY ) {
+		int mnemIndex = FlatLaf.isShowMnemonics() ? l.getDisplayedMnemonicIndex() : -1;
+		g.setColor( l.getForeground() );
+		FlatUIUtils.drawStringUnderlineCharAt( l, g, s, mnemIndex, textX, textY );
+	}
+
+	@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 );
+	}
+}

flatlaf-jide-oss/src/main/resources/com/formdev/flatlaf/jideoss/FlatLaf.properties

@@ -17,6 +17,7 @@
 #---- UI delegates ----
 
 JideButtonUI = com.formdev.flatlaf.jideoss.ui.FlatJideButtonUI
+JideLabelUI = com.formdev.flatlaf.jideoss.ui.FlatJideLabelUI
 JidePopupMenuUI = com.formdev.flatlaf.jideoss.ui.FlatJidePopupMenuUI
 JideTabbedPaneUI = com.formdev.flatlaf.jideoss.ui.FlatJideTabbedPaneUI
 RangeSliderUI = com.formdev.flatlaf.jideoss.ui.FlatRangeSliderUI
@@ -43,6 +44,13 @@ JideButton.highlight = $Button.selectedBackground
 Button.disabledForeground = $Button.disabledText
 
 
+#---- JideLabel ----
+
+JideLabel.background = $Label.background
+JideLabel.foreground = $Label.foreground
+JideLabel.disabledForeground = $Label.disabledForeground
+
+
 #---- JidePopup ----
 
 Resizable.resizeBorder = 4,4,4,4,$PopupMenu.borderColor