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.Dimension;
  import java.awt.Graphics;
  import java.awt.Graphics2D;
  import java.beans.PropertyChangeEvent;
  import javax.swing.JComponent;
  import javax.swing.JEditorPane;
  import javax.swing.UIManager;
  import javax.swing.plaf.ComponentUI;
  import javax.swing.plaf.UIResource;
  import javax.swing.plaf.basic.BasicTextPaneUI;
  import javax.swing.text.JTextComponent;
  import themeengine.include.com.formdev.flatlaf.util.HiDPIUtils;
  
  /**
   * Provides the Flat LaF UI delegate for {@link javax.swing.JTextPane}.
   *
   * <!-- BasicTextPaneUI -->
   *
   * @uiDefault TextPane.font						Font
   * @uiDefault TextPane.background				Color
   * @uiDefault TextPane.foreground				Color	also used if not editable
   * @uiDefault TextPane.caretForeground			Color
   * @uiDefault TextPane.selectionBackground		Color
   * @uiDefault TextPane.selectionForeground		Color
   * @uiDefault TextPane.disabledBackground		Color	used if not enabled
   * @uiDefault TextPane.inactiveBackground		Color	used if not editable
   * @uiDefault TextPane.inactiveForeground		Color	used if not enabled (yes, this is confusing; this should be named disabledForeground)
   * @uiDefault TextPane.border					Border
   * @uiDefault TextPane.margin					Insets
   * @uiDefault TextPane.caretBlinkRate			int		default is 500 milliseconds
   *
   * <!-- FlatTextPaneUI -->
   *
   * @uiDefault Component.minimumWidth			int
   * @uiDefault Component.isIntelliJTheme			boolean
   *
   * @author Karl Tauber
   */
  public class FlatTextPaneUI
  	extends BasicTextPaneUI
  {
  	protected int minimumWidth;
  	protected boolean isIntelliJTheme;
  
  	private Object oldHonorDisplayProperties;
  
  	public static ComponentUI createUI( JComponent c ) {
  		return new FlatTextPaneUI();
  	}
  
  	@Override
  	protected void installDefaults() {
  		super.installDefaults();
  
  		minimumWidth = UIManager.getInt( "Component.minimumWidth" );
  		isIntelliJTheme = UIManager.getBoolean( "Component.isIntelliJTheme" );
  
  		// use component font and foreground for HTML text
  		oldHonorDisplayProperties = getComponent().getClientProperty( JEditorPane.HONOR_DISPLAY_PROPERTIES );
  		getComponent().putClientProperty( JEditorPane.HONOR_DISPLAY_PROPERTIES, true );
  	}
  
  	@Override
  	protected void uninstallDefaults() {
  		super.uninstallDefaults();
  
  		getComponent().putClientProperty( JEditorPane.HONOR_DISPLAY_PROPERTIES, oldHonorDisplayProperties );
  	}
  
  	@Override
  	protected void propertyChange( PropertyChangeEvent e ) {
  		super.propertyChange( e );
  		FlatEditorPaneUI.propertyChange( getComponent(), e );
  	}
  
  	@Override
  	public Dimension getPreferredSize( JComponent c ) {
  		return FlatEditorPaneUI.applyMinimumWidth( c, super.getPreferredSize( c ), minimumWidth );
  	}
  
  	@Override
  	public Dimension getMinimumSize( JComponent c ) {
  		return FlatEditorPaneUI.applyMinimumWidth( c, super.getMinimumSize( c ), minimumWidth );
  	}
  
  	@Override
  	protected void paintSafely( Graphics g ) {
  		super.paintSafely( HiDPIUtils.createGraphicsTextYCorrection( (Graphics2D) g ) );
  	}
  
  	@Override
  	protected void paintBackground( Graphics g ) {
  		JTextComponent c = getComponent();
  
  		// for compatibility with IntelliJ themes
  		if( isIntelliJTheme && (!c.isEnabled() || !c.isEditable()) && (c.getBackground() instanceof UIResource) ) {
  			FlatUIUtils.paintParentBackground( g, c );
  			return;
  		}
  
  		super.paintBackground( g );
  	}
  }
  