/* MultiComboBoxUI.java -- Copyright (C) 2005 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ package javax.swing.plaf.multi; import java.awt.Dimension; import java.awt.Graphics; import java.util.Iterator; import java.util.Vector; import javax.accessibility.Accessible; import javax.swing.JComboBox; import javax.swing.JComponent; import javax.swing.LookAndFeel; import javax.swing.UIManager; import javax.swing.plaf.ComboBoxUI; import javax.swing.plaf.ComponentUI; /** * A UI delegate that that coordinates multiple {@link ComboBoxUI} * instances, one from the primary look and feel, and one or more from the * auxiliary look and feel(s). * * @see UIManager#addAuxiliaryLookAndFeel(LookAndFeel) */ public class MultiComboBoxUI extends ComboBoxUI { /** A list of references to the actual component UIs. */ protected Vector uis; /** * Creates a new MultiComboBoxUI instance. * * @see #createUI(JComponent) */ public MultiComboBoxUI() { uis = new Vector(); } /** * Creates a delegate object for the specified component. If any auxiliary * look and feels support this component, a MultiComboBoxUI * is returned, otherwise the UI from the default look and feel is returned. * * @param target the component. * * @see MultiLookAndFeel#createUIs(ComponentUI, Vector, JComponent) */ public static ComponentUI createUI(JComponent target) { MultiComboBoxUI mui = new MultiComboBoxUI(); return MultiLookAndFeel.createUIs(mui, mui.uis, target); } /** * Calls the {@link ComponentUI#installUI(JComponent)} method for all * the UI delegates managed by this MultiComboBoxUI. * * @param c the component. */ public void installUI(JComponent c) { Iterator iterator = uis.iterator(); while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); ui.installUI(c); } } /** * Calls the {@link ComponentUI#uninstallUI(JComponent)} method for all * the UI delegates managed by this MultiComboBoxUI. * * @param c the component. */ public void uninstallUI(JComponent c) { Iterator iterator = uis.iterator(); while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); ui.uninstallUI(c); } } /** * Returns an array containing the UI delegates managed by this * MultiComboBoxUI. The first item in the array is always * the UI delegate from the installed default look and feel. * * @return An array of UI delegates. */ public ComponentUI[] getUIs() { return MultiLookAndFeel.uisToArray(uis); } /** * Calls the {@link ComponentUI#contains(JComponent, int, int)} method for all * the UI delegates managed by this MultiComboBoxUI, * returning the result for the UI delegate from the primary look and * feel. * * @param c the component. * @param x the x-coordinate. * @param y the y-coordinate. * * @return true if the specified (x, y) coordinate falls within * the bounds of the component as rendered by the UI delegate in the * primary look and feel, and false otherwise. */ public boolean contains(JComponent c, int x, int y) { boolean result = false; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); result = ui.contains(c, x, y); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); /* boolean ignored = */ ui.contains(c, x, y); } return result; } /** * Calls the {@link ComponentUI#update(Graphics, JComponent)} method for all * the UI delegates managed by this MultiComboBoxUI. * * @param g the graphics device. * @param c the component. */ public void update(Graphics g, JComponent c) { Iterator iterator = uis.iterator(); while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); ui.update(g, c); } } /** * Calls the paint(Graphics, JComponent) method for all the UI * delegates managed by this MultiComboBoxUI. * * @param g the graphics device. * @param c the component. */ public void paint(Graphics g, JComponent c) { Iterator iterator = uis.iterator(); while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); ui.paint(g, c); } } /** * Calls the {@link ComponentUI#getPreferredSize(JComponent)} method for all * the UI delegates managed by this MultiComboBoxUI, * returning the preferred size for the UI delegate from the primary look and * feel. * * @param c the component. * * @return The preferred size returned by the UI delegate from the primary * look and feel. */ public Dimension getPreferredSize(JComponent c) { Dimension result = null; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); result = ui.getPreferredSize(c); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); /* Dimension ignored = */ ui.getPreferredSize(c); } return result; } /** * Calls the {@link ComponentUI#getMinimumSize(JComponent)} method for all * the UI delegates managed by this MultiComboBoxUI, * returning the minimum size for the UI delegate from the primary look and * feel. * * @param c the component. * * @return The minimum size returned by the UI delegate from the primary * look and feel. */ public Dimension getMinimumSize(JComponent c) { Dimension result = null; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); result = ui.getMinimumSize(c); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); /* Dimension ignored = */ ui.getMinimumSize(c); } return result; } /** * Calls the {@link ComponentUI#getMaximumSize(JComponent)} method for all * the UI delegates managed by this MultiComboBoxUI, * returning the maximum size for the UI delegate from the primary look and * feel. * * @param c the component. * * @return The maximum size returned by the UI delegate from the primary * look and feel. */ public Dimension getMaximumSize(JComponent c) { Dimension result = null; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); result = ui.getMaximumSize(c); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); /* Dimension ignored = */ ui.getMaximumSize(c); } return result; } /** * Calls the {@link ComponentUI#getAccessibleChildrenCount(JComponent)} method * for all the UI delegates managed by this MultiComboBoxUI, * returning the count for the UI delegate from the primary look and * feel. * * @param c the component. * * @return The count returned by the UI delegate from the primary * look and feel. */ public int getAccessibleChildrenCount(JComponent c) { int result = 0; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); result = ui.getAccessibleChildrenCount(c); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); /* int ignored = */ ui.getAccessibleChildrenCount(c); } return result; } /** * Calls the {@link ComponentUI#getAccessibleChild(JComponent, int)} method * for all the UI delegates managed by this MultiComboBoxUI, * returning the child for the UI delegate from the primary look and * feel. * * @param c the component * @param i the child index. * * @return The child returned by the UI delegate from the primary * look and feel. */ public Accessible getAccessibleChild(JComponent c, int i) { Accessible result = null; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); result = ui.getAccessibleChild(c, i); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComponentUI ui = (ComponentUI) iterator.next(); /* Accessible ignored = */ ui.getAccessibleChild(c, i); } return result; } /** * Calls the {@link ComboBoxUI#setPopupVisible(JComboBox, boolean)} method * for all the UI delegates managed by this MultiComboBoxUI. * * @param c the component. * @param visible the visible state. */ public void setPopupVisible(JComboBox c, boolean visible) { Iterator iterator = uis.iterator(); while (iterator.hasNext()) { ComboBoxUI ui = (ComboBoxUI) iterator.next(); ui.setPopupVisible(c, visible); } } /** * Calls the {@link ComboBoxUI#isPopupVisible(JComboBox)} method for all * the UI delegates managed by this MultiComboBoxUI, * returning the result for the UI delegate from the primary look and * feel. * * @param c the component. * * @return The result for the UI delegate from the primary look and feel. */ public boolean isPopupVisible(JComboBox c) { boolean result = false; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComboBoxUI ui = (ComboBoxUI) iterator.next(); result = ui.isPopupVisible(c); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComboBoxUI ui = (ComboBoxUI) iterator.next(); /* boolean ignored = */ ui.isPopupVisible(c); } return result; } /** * Calls the {@link ComboBoxUI#isFocusTraversable(JComboBox)} method for all * the UI delegates managed by this MultiComboBoxUI, * returning the result for the UI delegate from the primary look and * feel. * * @param c the component. * * @return true if the combo box is traversable according to the * UI delegate in the primary look and feel, and false * otherwise. */ public boolean isFocusTraversable(JComboBox c) { boolean result = false; Iterator iterator = uis.iterator(); // first UI delegate provides the return value if (iterator.hasNext()) { ComboBoxUI ui = (ComboBoxUI) iterator.next(); result = ui.isFocusTraversable(c); } // return values from auxiliary UI delegates are ignored while (iterator.hasNext()) { ComboBoxUI ui = (ComboBoxUI) iterator.next(); /* boolean ignored = */ ui.isFocusTraversable(c); } return result; } }