/* * 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.icons; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Component; import java.awt.Graphics2D; import java.awt.geom.Path2D; import javax.swing.JMenu; import javax.swing.UIManager; import com.formdev.flatlaf.ui.FlatUIUtils; /** * "arrow" icon for {@link javax.swing.JMenu}. * * @uiDefault Component.arrowType String triangle (default) or chevron * @uiDefault Menu.icon.arrowColor Color * @uiDefault Menu.icon.disabledArrowColor Color * @uiDefault Menu.selectionForeground Color * @uiDefault MenuItem.selectionType String * * @author Karl Tauber */ public class FlatMenuArrowIcon extends FlatAbstractIcon { protected final boolean chevron = "chevron".equals( UIManager.getString( "Component.arrowType" ) ); protected final Color arrowColor = UIManager.getColor( "Menu.icon.arrowColor" ); protected final Color disabledArrowColor = UIManager.getColor( "Menu.icon.disabledArrowColor" ); protected final Color selectionForeground = UIManager.getColor( "Menu.selectionForeground" ); public FlatMenuArrowIcon() { super( 6, 10, null ); } @Override protected void paintIcon( Component c, Graphics2D g ) { if( !c.getComponentOrientation().isLeftToRight() ) g.rotate( Math.toRadians( 180 ), width / 2., height / 2. ); g.setColor( getArrowColor( c ) ); if( chevron ) { // chevron arrow Path2D path = FlatUIUtils.createPath( false, 1,1, 5,5, 1,9 ); g.setStroke( new BasicStroke( 1f ) ); g.draw( path ); } else { // triangle arrow g.fill( FlatUIUtils.createPath( 0,0.5, 5,5, 0,9.5 ) ); } } protected Color getArrowColor( Component c ) { if( c instanceof JMenu && ((JMenu)c).isSelected() && !isUnderlineSelection() ) return selectionForeground; return c.isEnabled() ? arrowColor : disabledArrowColor; } protected boolean isUnderlineSelection() { // not storing value of "MenuItem.selectionType" in class to allow changing at runtime return "underline".equals( UIManager.getString( "MenuItem.selectionType" ) ); } }