content: /*
   * 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 themeengine.include.com.formdev.flatlaf.ui;
  
  import java.awt.Color;
  import java.awt.Cursor;
  import javax.swing.JButton;
  import javax.swing.JComponent;
  import javax.swing.JSplitPane;
  import javax.swing.SwingConstants;
  import javax.swing.UIManager;
  import javax.swing.plaf.ComponentUI;
  import javax.swing.plaf.basic.BasicSplitPaneDivider;
  import javax.swing.plaf.basic.BasicSplitPaneUI;
  import themeengine.include.com.formdev.flatlaf.util.UIScale;
  
  /**
   * Provides the Flat LaF UI delegate for {@link javax.swing.JSplitPane}.
   *
   * <!-- BasicSplitPaneUI -->
   *
   * @uiDefault SplitPane.background						Color
   * @uiDefault SplitPane.foreground						Color unused
   * @uiDefault SplitPane.dividerSize						int
   * @uiDefault SplitPane.border							Border
   * @uiDefault SplitPaneDivider.border					Border
   * @uiDefault SplitPaneDivider.draggingColor			Color	only used if continuousLayout is false
   *
   * <!-- FlatSplitPaneUI -->
   *
   * @uiDefault Component.arrowType						String	triangle (default) or chevron
   * @uiDefault SplitPane.continuousLayout				boolean
   * @uiDefault SplitPaneDivider.oneTouchArrowColor		Color
   * @uiDefault SplitPaneDivider.oneTouchHoverArrowColor	Color
   *
   * @author Karl Tauber
   */
  public class FlatSplitPaneUI
  	extends BasicSplitPaneUI
  {
  	protected String arrowType;
  	private Boolean continuousLayout;
  	private Color oneTouchArrowColor;
  	private Color oneTouchHoverArrowColor;
  
  	public static ComponentUI createUI( JComponent c ) {
  		return new FlatSplitPaneUI();
  	}
  
  	@Override
  	protected void installDefaults() {
  		arrowType = UIManager.getString( "Component.arrowType" );
  
  		// get one-touch colors before invoking super.installDefaults() because they are
  		// used in there on LaF switching
  		oneTouchArrowColor = UIManager.getColor( "SplitPaneDivider.oneTouchArrowColor" );
  		oneTouchHoverArrowColor = UIManager.getColor( "SplitPaneDivider.oneTouchHoverArrowColor" );
  
  		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 -----------------------------------------
  
  	protected class FlatSplitPaneDivider
  		extends BasicSplitPaneDivider
  	{
  		protected FlatSplitPaneDivider( BasicSplitPaneUI ui ) {
  			super( ui );
  		}
  
  		@Override
  		public void setDividerSize( int newSize ) {
  			super.setDividerSize( UIScale.scale( newSize ) );
  		}
  
  		@Override
  		protected JButton createLeftOneTouchButton() {
  			return new FlatOneTouchButton( true );
  		}
  
  		@Override
  		protected JButton createRightOneTouchButton() {
  			return new FlatOneTouchButton( false );
  		}
  
  		//---- class FlatOneTouchButton ---------------------------------------
  
  		private class FlatOneTouchButton
  			extends FlatArrowButton
  		{
  			private final boolean left;
  
  			public FlatOneTouchButton( boolean left ) {
  				super( SwingConstants.NORTH, arrowType, oneTouchArrowColor, null, oneTouchHoverArrowColor, null );
  				setCursor( Cursor.getPredefinedCursor( Cursor.DEFAULT_CURSOR ) );
  
  				this.left = left;
  			}
  
  			@Override
  			public int getDirection() {
  				return (orientation == JSplitPane.VERTICAL_SPLIT)
  					? (left ? SwingConstants.NORTH : SwingConstants.SOUTH)
  					: (left ? SwingConstants.WEST : SwingConstants.EAST);
  			}
  		}
  	}
  
  }
  