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.icons;
  
  import static themeengine.include.com.formdev.flatlaf.util.UIScale.*;
  import java.awt.Color;
  import java.awt.Component;
  import java.awt.Graphics2D;
  import java.awt.geom.Ellipse2D;
  import java.awt.geom.Path2D;
  import javax.swing.UIManager;
  import themeengine.include.com.formdev.flatlaf.ui.FlatButtonUI;
  import themeengine.include.com.formdev.flatlaf.ui.FlatUIUtils;
  
  /**
   * Help button icon for {@link javax.swing.JButton}.
   *
   * @uiDefault Component.focusWidth						int
   * @uiDefault Component.focusColor						Color
   * @uiDefault HelpButton.borderColor					Color
   * @uiDefault HelpButton.disabledBorderColor			Color
   * @uiDefault HelpButton.focusedBorderColor				Color
   * @uiDefault HelpButton.hoverBorderColor				Color	optional
   * @uiDefault HelpButton.background						Color
   * @uiDefault HelpButton.disabledBackground				Color
   * @uiDefault HelpButton.focusedBackground				Color	optional
   * @uiDefault HelpButton.hoverBackground				Color	optional
   * @uiDefault HelpButton.pressedBackground				Color	optional
   * @uiDefault HelpButton.questionMarkColor				Color
   * @uiDefault HelpButton.disabledQuestionMarkColor		Color
   *
   * @author Karl Tauber
   */
  public class FlatHelpButtonIcon
  	extends FlatAbstractIcon
  {
  	protected final int focusWidth = UIManager.getInt( "Component.focusWidth" );
  	protected final Color focusColor = UIManager.getColor( "Component.focusColor" );
  
  	protected final Color borderColor = UIManager.getColor( "HelpButton.borderColor" );
  	protected final Color disabledBorderColor = UIManager.getColor( "HelpButton.disabledBorderColor" );
  	protected final Color focusedBorderColor = UIManager.getColor( "HelpButton.focusedBorderColor" );
  	protected final Color hoverBorderColor = UIManager.getColor( "HelpButton.hoverBorderColor" );
  	protected final Color background = UIManager.getColor( "HelpButton.background" );
  	protected final Color disabledBackground = UIManager.getColor( "HelpButton.disabledBackground" );
  	protected final Color focusedBackground = UIManager.getColor( "HelpButton.focusedBackground" );
  	protected final Color hoverBackground = UIManager.getColor( "HelpButton.hoverBackground" );
  	protected final Color pressedBackground = UIManager.getColor( "HelpButton.pressedBackground" );
  	protected final Color questionMarkColor = UIManager.getColor( "HelpButton.questionMarkColor" );
  	protected final Color disabledQuestionMarkColor = UIManager.getColor( "HelpButton.disabledQuestionMarkColor" );
  
  	protected final int iconSize = 22 + (focusWidth * 2);
  
  	public FlatHelpButtonIcon() {
  		super( 0, 0, null );
  	}
  
  	@Override
  	protected void paintIcon( Component c, Graphics2D g2 ) {
  		/*
  			<svg xmlns="http://www.w3.org/2000/svg" width="22" height="22" viewBox="0 0 22 22">
  			  <g fill="none" fill-rule="evenodd">
  			    <circle cx="11" cy="11" r="10.5" fill="#6E6E6E"/>
  			    <circle cx="11" cy="11" r="9.5" fill="#FFF"/>
  			    <path fill="#6E6E6E" d="M10,17 L12,17 L12,15 L10,15 L10,17 Z M11,5 C8.8,5 7,6.8 7,9 L9,9 C9,7.9 9.9,7 11,7 C12.1,7 13,7.9 13,9 C13,11 10,10.75 10,14 L12,14 C12,11.75 15,11.5 15,9 C15,6.8 13.2,5 11,5 Z"/>
  			  </g>
  			</svg>
  		*/
  
  		boolean enabled = c.isEnabled();
  		boolean focused = FlatUIUtils.isPermanentFocusOwner( c );
  
  		// paint focused border
  		if( focused && FlatButtonUI.isFocusPainted( c ) ) {
  			g2.setColor( focusColor );
  			g2.fill( new Ellipse2D.Float( 0.5f, 0.5f, iconSize - 1, iconSize - 1 ) );
  		}
  
  		// paint border
  		g2.setColor( FlatButtonUI.buttonStateColor( c,
  			borderColor,
  			disabledBorderColor,
  			focusedBorderColor,
  			hoverBorderColor,
  			null ) );
  		g2.fill( new Ellipse2D.Float( focusWidth + 0.5f, focusWidth + 0.5f, 21, 21 ) );
  
  		// paint background
  		g2.setColor( FlatUIUtils.deriveColor( FlatButtonUI.buttonStateColor( c,
  			background,
  			disabledBackground,
  			focusedBackground,
  			hoverBackground,
  			pressedBackground ), background ) );
  		g2.fill( new Ellipse2D.Float( focusWidth + 1.5f, focusWidth + 1.5f, 19, 19 ) );
  
  		// paint question mark
  		Path2D q = new Path2D.Float();
  		q.moveTo( 11, 5 );
  		q.curveTo( 8.8,5, 7,6.8, 7,9 );
  		q.lineTo( 9, 9 );
  		q.curveTo( 9,7.9, 9.9,7, 11,7 );
  		q.curveTo( 12.1,7, 13,7.9, 13,9 );
  		q.curveTo( 13,11, 10,10.75, 10,14 );
  		q.lineTo( 12, 14 );
  		q.curveTo( 12,11.75, 15,11.5, 15,9 );
  		q.curveTo( 15,6.8, 13.2,5, 11,5 );
  		q.closePath();
  
  		g2.translate( focusWidth, focusWidth );
  		g2.setColor( enabled ? questionMarkColor : disabledQuestionMarkColor );
  		g2.fill( q );
  		g2.fillRect( 10, 15, 2, 2 );
  	}
  
  	@Override
  	public int getIconWidth() {
  		return scale( iconSize );
  	}
  
  	@Override
  	public int getIconHeight() {
  		return scale( iconSize );
  	}
  }
  