SplitPane basic implementation

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatLaf.java

@@ -238,7 +238,7 @@ public abstract class FlatLaf
 			return parseInsets( value );
 
 		// insets
-		if( key.endsWith( "Size" ) )
+		if( key.endsWith( "Size" ) && !key.equals( "SplitPane.dividerSize" ))
 			return parseSize( value );
 
 		// insets

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatSplitPaneUI.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.ui;
+
+import javax.swing.JComponent;
+import javax.swing.UIManager;
+import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.basic.BasicSplitPaneDivider;
+import javax.swing.plaf.basic.BasicSplitPaneUI;
+import com.formdev.flatlaf.util.UIScale;
+
+/**
+ * Provides the Flat LaF UI delegate for {@link javax.swing.JSplitPane}.
+ *
+ * @uiDefault SplitPane.background						Color
+ * @uiDefault SplitPane.foreground						Color unused
+ * @uiDefault SplitPane.dividerSize						int
+ * @uiDefault SplitPane.continuousLayout				boolean
+ * @uiDefault SplitPane.border							Border
+ * @uiDefault SplitPaneDivider.border					Border
+ * @uiDefault SplitPaneDivider.draggingColor			Color	only used if continuousLayout is false
+ *
+ * @author Karl Tauber
+ */
+public class FlatSplitPaneUI
+	extends BasicSplitPaneUI
+{
+	private Boolean continuousLayout;
+
+	public static ComponentUI createUI( JComponent c ) {
+		return new FlatSplitPaneUI();
+	}
+
+	@Override
+	protected void installDefaults() {
+		super.installDefaults();
+
+		continuousLayout = (Boolean) UIManager.get( "SplitPane.continuousLayout" );
+	}
+
+	@Override
+	public boolean isContinuousLayout() {
+		return super.isContinuousLayout() || (continuousLayout != null && Boolean.TRUE.equals( continuousLayout ));
+	}
+
+	@Override
+	public BasicSplitPaneDivider createDefaultDivider() {
+		return new FlatSplitPaneDivider( this );
+	}
+
+	//---- class FlatSplitPaneDivider -----------------------------------------
+
+	private static class FlatSplitPaneDivider
+		extends BasicSplitPaneDivider
+	{
+		public FlatSplitPaneDivider( BasicSplitPaneUI ui ) {
+			super( ui );
+		}
+
+		@Override
+		public void setDividerSize( int newSize ) {
+			super.setDividerSize( UIScale.scale( newSize ) );
+		}
+	}
+}

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatDarkLaf.properties

@@ -125,3 +125,8 @@ Slider.trackColor=646464
 Slider.thumbColor=A6A6A6
 Slider.tickColor=888888
 Slider.disabledForeground=4c5052
+
+
+#---- SplitPane ----
+
+SplitPaneDivider.draggingColor=646464

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatLaf.properties

@@ -29,6 +29,7 @@ ScrollBarUI=com.formdev.flatlaf.ui.FlatScrollBarUI
 ScrollPaneUI=com.formdev.flatlaf.ui.FlatScrollPaneUI
 SeparatorUI=com.formdev.flatlaf.ui.FlatSeparatorUI
 SliderUI=com.formdev.flatlaf.ui.FlatSliderUI
+SplitPaneUI=com.formdev.flatlaf.ui.FlatSplitPaneUI
 TextAreaUI=com.formdev.flatlaf.ui.FlatTextAreaUI
 TextFieldUI=com.formdev.flatlaf.ui.FlatTextFieldUI
 TextPaneUI=com.formdev.flatlaf.ui.FlatTextPaneUI
@@ -115,6 +116,14 @@ Slider.trackWidth=3
 Slider.thumbWidth=11
 
 
+#---- SplitPane ----
+
+SplitPane.dividerSize=5
+SplitPane.continuousLayout=true
+SplitPane.border=null
+SplitPaneDivider.border=null
+
+
 #---- TextArea ----
 
 TextArea.border=com.formdev.flatlaf.ui.FlatMarginBorder

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatLightLaf.properties

@@ -125,3 +125,8 @@ Slider.trackColor=c4c4c4
 Slider.thumbColor=6e6e6e
 Slider.tickColor=888888
 Slider.disabledForeground=c0c0c0
+
+
+#---- SplitPane ----
+
+SplitPaneDivider.draggingColor=c4c4c4

flatlaf-core/src/test/resources/com/formdev/flatlaf/FlatTestLaf.properties

@@ -118,3 +118,8 @@ Slider.trackColor=00bb00
 Slider.thumbColor=880000
 Slider.tickColor=ff0000
 Slider.disabledForeground=000088
+
+
+#---- SplitPane ----
+
+SplitPaneDivider.draggingColor=880000