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Diffstat (limited to 'libjava/javax/swing/plaf/basic/BasicLabelUI.java')
| -rw-r--r-- | libjava/javax/swing/plaf/basic/BasicLabelUI.java | 427 |
1 files changed, 0 insertions, 427 deletions
diff --git a/libjava/javax/swing/plaf/basic/BasicLabelUI.java b/libjava/javax/swing/plaf/basic/BasicLabelUI.java deleted file mode 100644 index 9ed7b1f7d02..00000000000 --- a/libjava/javax/swing/plaf/basic/BasicLabelUI.java +++ /dev/null @@ -1,427 +0,0 @@ -/* BasicLabelUI.java - Copyright (C) 2002, 2004 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.basic; - -import java.awt.Color; -import java.awt.Dimension; -import java.awt.Font; -import java.awt.FontMetrics; -import java.awt.Graphics; -import java.awt.Insets; -import java.awt.Rectangle; -import java.beans.PropertyChangeEvent; -import java.beans.PropertyChangeListener; - -import javax.swing.Icon; -import javax.swing.JComponent; -import javax.swing.JLabel; -import javax.swing.SwingUtilities; -import javax.swing.UIDefaults; -import javax.swing.UIManager; -import javax.swing.plaf.ComponentUI; -import javax.swing.plaf.LabelUI; - - -/** - * This is the Basic Look and Feel class for the JLabel. One BasicLabelUI - * object is used to paint all JLabels that utilize the Basic Look and Feel. - */ -public class BasicLabelUI extends LabelUI implements PropertyChangeListener -{ - /** The labelUI that is shared by all labels. */ - protected static BasicLabelUI labelUI; - - /** - * Creates a new BasicLabelUI object. - */ - public BasicLabelUI() - { - super(); - } - - /** - * Creates and returns a UI for the label. Since one UI is shared by all - * labels, this means creating only if necessary and returning the shared - * UI. - * - * @param c The {@link JComponent} that a UI is being created for. - * - * @return A label UI for the Basic Look and Feel. - */ - public static ComponentUI createUI(JComponent c) - { - if (labelUI == null) - labelUI = new BasicLabelUI(); - return labelUI; - } - - /** - * Returns the preferred size of this component as calculated by the - * {@link layoutCL} method. - * - * @param c This {@link JComponent} to get a preferred size for. - * - * @return The preferred size. - */ - public Dimension getPreferredSize(JComponent c) - { - JLabel lab = (JLabel)c; - Rectangle vr = new Rectangle(); - Rectangle ir = new Rectangle(); - Rectangle tr = new Rectangle(); - Insets insets = lab.getInsets(); - FontMetrics fm = lab.getToolkit().getFontMetrics(lab.getFont()); - layoutCL(lab, fm, lab.getText(), lab.getIcon(), vr, ir, tr); - Rectangle cr = tr.union(ir); - return new Dimension(insets.left + cr.width + insets.right, - insets.top + cr.height + insets.bottom); - - } - - /** - * This method returns the minimum size of the {@link JComponent} given. If - * this method returns null, then it is up to the Layout Manager to give - * this component a minimum size. - * - * @param c The {@link JComponent} to get a minimum size for. - * - * @return The minimum size. - */ - public Dimension getMinimumSize(JComponent c) - { - return getPreferredSize(c); - } - - /** - * This method returns the maximum size of the {@link JComponent} given. If - * this method returns null, then it is up to the Layout Manager to give - * this component a maximum size. - * - * @param c The {@link JComponent} to get a maximum size for. - * - * @return The maximum size. - */ - public Dimension getMaximumSize(JComponent c) - { - return getPreferredSize(c); - } - - /** - * The method that paints the label according to its current state. - * - * @param g The {@link Graphics} object to paint with. - * @param c The {@link JComponent} to paint. - */ - public void paint(Graphics g, JComponent c) - { - JLabel b = (JLabel) c; - - Font saved_font = g.getFont(); - - Rectangle tr = new Rectangle(); - Rectangle ir = new Rectangle(); - Rectangle vr = new Rectangle(); - - Font f = c.getFont(); - - g.setFont(f); - FontMetrics fm = g.getFontMetrics(f); - - vr = SwingUtilities.calculateInnerArea(c, vr); - - if (vr.width < 0) - vr.width = 0; - if (vr.height < 0) - vr.height = 0; - - Icon icon = (b.isEnabled()) ? b.getIcon() : b.getDisabledIcon(); - - String text = layoutCL(b, fm, b.getText(), icon, vr, ir, tr); - - if (icon != null) - icon.paintIcon(b, g, ir.x, ir.y); - if (text != null && ! text.equals("")) - { - if (b.isEnabled()) - paintEnabledText(b, g, text, tr.x, tr.y + fm.getAscent()); - else - paintDisabledText(b, g, text, tr.x, tr.y + fm.getAscent()); - } - g.setFont(saved_font); - } - - /** - * This method is simply calls SwingUtilities's layoutCompoundLabel. - * - * @param label The label to lay out. - * @param fontMetrics The FontMetrics for the font used. - * @param text The text to paint. - * @param icon The icon to draw. - * @param viewR The entire viewable rectangle. - * @param iconR The icon bounds rectangle. - * @param textR The text bounds rectangle. - * - * @return A possibly clipped version of the text. - */ - protected String layoutCL(JLabel label, FontMetrics fontMetrics, - String text, Icon icon, Rectangle viewR, - Rectangle iconR, Rectangle textR) - { - return SwingUtilities.layoutCompoundLabel(label, fontMetrics, text, icon, - label.getVerticalAlignment(), - label.getHorizontalAlignment(), - label.getVerticalTextPosition(), - label.getHorizontalTextPosition(), - viewR, iconR, textR, - label.getIconTextGap()); - } - - /** - * Paints the text if the label is disabled. By default, this paints the - * clipped text returned by layoutCompoundLabel using the - * background.brighter() color. It also paints the same text using the - * background.darker() color one pixel to the right and one pixel down. - * - * @param l The {@link JLabel} being painted. - * @param g The {@link Graphics} object to paint with. - * @param s The String to paint. - * @param textX The x coordinate of the start of the baseline. - * @param textY The y coordinate of the start of the baseline. - */ - protected void paintDisabledText(JLabel l, Graphics g, String s, int textX, - int textY) - { - Color saved_color = g.getColor(); - - g.setColor(l.getBackground().brighter()); - - int mnemIndex = l.getDisplayedMnemonicIndex(); - - if (mnemIndex != -1) - BasicGraphicsUtils.drawStringUnderlineCharAt(g, s, mnemIndex, textX, - textY); - else - g.drawString(s, textX, textY); - - g.setColor(l.getBackground().darker()); - if (mnemIndex != -1) - BasicGraphicsUtils.drawStringUnderlineCharAt(g, s, mnemIndex, textX + 1, - textY + 1); - else - g.drawString(s, textX + 1, textY + 1); - - g.setColor(saved_color); - } - - /** - * Paints the text if the label is enabled. The text is painted using the - * foreground color. - * - * @param l The {@link JLabel} being painted. - * @param g The {@link Graphics} object to paint with. - * @param s The String to paint. - * @param textX The x coordinate of the start of the baseline. - * @param textY The y coordinate of the start of the baseline. - */ - protected void paintEnabledText(JLabel l, Graphics g, String s, int textX, - int textY) - { - Color saved_color = g.getColor(); - g.setColor(l.getForeground()); - - int mnemIndex = l.getDisplayedMnemonicIndex(); - - if (mnemIndex != -1) - BasicGraphicsUtils.drawStringUnderlineCharAt(g, s, mnemIndex, textX, - textY); - else - g.drawString(s, textX, textY); - - g.setColor(saved_color); - } - - /** - * This method installs the UI for the given {@link JComponent}. This - * method will install the component, defaults, listeners, and keyboard - * actions. - * - * @param c The {@link JComponent} that this UI is being installed on. - */ - public void installUI(JComponent c) - { - super.installUI(c); - if (c instanceof JLabel) - { - JLabel l = (JLabel) c; - - installComponents(l); - installDefaults(l); - installListeners(l); - installKeyboardActions(l); - } - } - - /** - * This method uninstalls the UI for the given {@link JComponent}. This - * method will uninstall the component, defaults, listeners, and keyboard - * actions. - * - * @param c The {@link JComponent} that this UI is being installed on. - */ - public void uninstallUI(JComponent c) - { - super.uninstallUI(c); - if (c instanceof JLabel) - { - JLabel l = (JLabel) c; - - uninstallKeyboardActions(l); - uninstallListeners(l); - uninstallDefaults(l); - uninstallComponents(l); - } - } - - /** - * This method installs the components for this {@link JLabel}. - * - * @param c The {@link JLabel} to install components for. - */ - protected void installComponents(JLabel c) - { - //FIXME: fix javadoc + implement. - } - - /** - * This method uninstalls the components for this {@link JLabel}. - * - * @param c The {@link JLabel} to uninstall components for. - */ - protected void uninstallComponents(JLabel c) - { - //FIXME: fix javadoc + implement. - } - - /** - * This method installs the defaults that are defined in the Basic look and - * feel for this {@link JLabel}. - * - * @param c The {@link JLabel} to install defaults for. - */ - protected void installDefaults(JLabel c) - { - UIDefaults defaults = UIManager.getLookAndFeelDefaults(); - - c.setForeground(defaults.getColor("Label.foreground")); - c.setBackground(defaults.getColor("Label.background")); - c.setFont(defaults.getFont("Label.font")); - c.setBorder(defaults.getBorder("Label.border")); - c.setOpaque(true); - //XXX: There are properties we don't use called disabledForeground - //and disabledShadow. - } - - /** - * This method uninstalls the defaults that are defined in the Basic look - * and feel for this {@link JLabel}. - * - * @param c The {@link JLabel} to uninstall defaults for. - */ - protected void uninstallDefaults(JLabel c) - { - c.setForeground(null); - c.setBackground(null); - c.setFont(null); - c.setBorder(null); - } - - /** - * This method installs the keyboard actions for the given {@link JLabel}. - * - * @param l The {@link JLabel} to install keyboard actions for. - */ - protected void installKeyboardActions(JLabel l) - { - //FIXME: implement. - } - - /** - * This method uninstalls the keyboard actions for the given {@link JLabel}. - * - * @param l The {@link JLabel} to uninstall keyboard actions for. - */ - protected void uninstallKeyboardActions(JLabel l) - { - //FIXME: implement. - } - - /** - * This method installs the listeners for the given {@link JLabel}. The UI - * delegate only listens to the label. - * - * @param c The {@link JLabel} to install listeners for. - */ - protected void installListeners(JLabel c) - { - c.addPropertyChangeListener(this); - } - - /** - * This method uninstalls the listeners for the given {@link JLabel}. The UI - * delegate only listens to the label. - * - * @param c The {@link JLabel} to uninstall listeners for. - */ - protected void uninstallListeners(JLabel c) - { - c.removePropertyChangeListener(this); - } - - /** - * This method is called whenever any JLabel's that use this UI has one of - * their properties change. - * - * @param e The {@link PropertyChangeEvent} that describes the change. - */ - public void propertyChange(PropertyChangeEvent e) - { - JLabel c = (JLabel) e.getSource(); - c.revalidate(); - c.repaint(); - } -} |
