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/* * @(#)MetalComboBoxButton.java 1.40 05/11/17 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.swing.plaf.metal; import java.awt.*; import java.awt.event.*; import javax.swing.plaf.basic.*; import javax.swing.*; import javax.swing.plaf.*; import javax.swing.border.*; import java.io.Serializable; /** * JButton subclass to help out MetalComboBoxUI * <p> * <strong>Warning:</strong> * Serialized objects of this class will not be compatible with * future Swing releases. The current serialization support is * appropriate for short term storage or RMI between applications running * the same version of Swing. As of 1.4, support for long term storage * of all JavaBeans<sup><font size="-2">TM</font></sup> * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @see MetalComboBoxButton * @version 1.40 11/17/05 * @author Tom Santos */ public class MetalComboBoxButton extends JButton { protected JComboBox comboBox; protected JList listBox; protected CellRendererPane rendererPane; protected Icon comboIcon; protected boolean iconOnly = false; public final JComboBox getComboBox() { return comboBox;} public final void setComboBox( JComboBox cb ) { comboBox = cb;} public final Icon getComboIcon() { return comboIcon;} public final void setComboIcon( Icon i ) { comboIcon = i;} public final boolean isIconOnly() { return iconOnly;} public final void setIconOnly( boolean isIconOnly ) { iconOnly = isIconOnly;} MetalComboBoxButton() { super( "" ); DefaultButtonModel model = new DefaultButtonModel() { public void setArmed( boolean armed ) { super.setArmed( isPressed() ? true : armed ); } }; setModel( model ); } public MetalComboBoxButton( JComboBox cb, Icon i, CellRendererPane pane, JList list ) { this(); comboBox = cb; comboIcon = i; rendererPane = pane; listBox = list; setEnabled( comboBox.isEnabled() ); } public MetalComboBoxButton( JComboBox cb, Icon i, boolean onlyIcon, CellRendererPane pane, JList list ) { this( cb, i, pane, list ); iconOnly = onlyIcon; } public boolean isFocusTraversable() { return false; } public void setEnabled(boolean enabled) { super.setEnabled(enabled); // Set the background and foreground to the combobox colors. if (enabled) { setBackground(comboBox.getBackground()); setForeground(comboBox.getForeground()); } else { setBackground(UIManager.getColor("ComboBox.disabledBackground")); setForeground(UIManager.getColor("ComboBox.disabledForeground")); } } public void paintComponent( Graphics g ) { boolean leftToRight = MetalUtils.isLeftToRight(comboBox); // Paint the button as usual super.paintComponent( g ); Insets insets = getInsets(); int width = getWidth() - (insets.left + insets.right); int height = getHeight() - (insets.top + insets.bottom); if ( height <= 0 || width <= 0 ) { return; } int left = insets.left; int top = insets.top; int right = left + (width - 1); int bottom = top + (height - 1); int iconWidth = 0; int iconLeft = (leftToRight) ? right : left; // Paint the icon if ( comboIcon != null ) { iconWidth = comboIcon.getIconWidth(); int iconHeight = comboIcon.getIconHeight(); int iconTop = 0; if ( iconOnly ) { iconLeft = (getWidth() / 2) - (iconWidth / 2); iconTop = (getHeight() / 2) - (iconHeight / 2); } else { if (leftToRight) { iconLeft = (left + (width - 1)) - iconWidth; } else { iconLeft = left; } iconTop = (top + ((bottom - top) / 2)) - (iconHeight / 2); } comboIcon.paintIcon( this, g, iconLeft, iconTop ); // Paint the focus if ( comboBox.hasFocus() && (!MetalLookAndFeel.usingOcean() || comboBox.isEditable())) { g.setColor( MetalLookAndFeel.getFocusColor() ); g.drawRect( left - 1, top - 1, width + 3, height + 1 ); } } if (MetalLookAndFeel.usingOcean()) { // With Ocean the button only paints the arrow, bail. return; } // Let the renderer paint if ( ! iconOnly && comboBox != null ) { ListCellRenderer renderer = comboBox.getRenderer(); Component c; boolean renderPressed = getModel().isPressed(); c = renderer.getListCellRendererComponent(listBox, comboBox.getSelectedItem(), -1, renderPressed, false); c.setFont(rendererPane.getFont()); if ( model.isArmed() && model.isPressed() ) { if ( isOpaque() ) { c.setBackground(UIManager.getColor("Button.select")); } c.setForeground(comboBox.getForeground()); } else if ( !comboBox.isEnabled() ) { if ( isOpaque() ) { c.setBackground(UIManager.getColor("ComboBox.disabledBackground")); } c.setForeground(UIManager.getColor("ComboBox.disabledForeground")); } else { c.setForeground(comboBox.getForeground()); c.setBackground(comboBox.getBackground()); } int cWidth = width - (insets.right + iconWidth); // Fix for 4238829: should lay out the JPanel. boolean shouldValidate = false; if (c instanceof JPanel) { shouldValidate = true; } if (leftToRight) { rendererPane.paintComponent( g, c, this, left, top, cWidth, height, shouldValidate ); } else { rendererPane.paintComponent( g, c, this, left + iconWidth, top, cWidth, height, shouldValidate ); } } } public Dimension getMinimumSize() { Dimension ret = new Dimension(); Insets insets = getInsets(); ret.width = insets.left + getComboIcon().getIconWidth() + insets.right; ret.height = insets.bottom + getComboIcon().getIconHeight() + insets.top; return ret; } }