241 lines
6.7 KiB
Java
241 lines
6.7 KiB
Java
/* JLabel.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.awt.*;
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import javax.swing.plaf.*;
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import javax.accessibility.AccessibleContext;
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import javax.accessibility.AccessibleRole;
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import javax.accessibility.AccessibleState;
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import javax.accessibility.AccessibleStateSet;
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public class JLabel extends JComponent implements SwingConstants
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{
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String text;
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Icon icon;
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int gap;
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int align;
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int hor_align;
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int hor_text_pos;
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int vert_align;
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int vert_text_pos;
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public JLabel()
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{
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this("", null, 0);
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}
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public JLabel(Icon image)
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{
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this("", image, 0);
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}
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public JLabel(Icon image, int horizontalAlignment)
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{
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this("", image, horizontalAlignment);
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}
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public JLabel(String text)
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{
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this(text, null, 0);
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}
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public JLabel(String text, int horizontalAlignment)
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{
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this(text, null, horizontalAlignment);
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}
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public JLabel(String text, Icon icon, int horizontalAlignment)
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{
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// do the work.....
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this.text = text;
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setIcon(icon);
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this.align = horizontalAlignment;
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updateUI(); // get a proper ui
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}
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protected int checkHorizontalKey(int key, String message)
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{
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// Verify that key is a legal value for the horizontalAlignment properties.
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return 0;
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}
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protected int checkVerticalKey(int key, String message)
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{
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// Verify that key is a legal value for the verticalAlignment or verticalTextPosition properties.
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return 0;
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}
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public AccessibleContext getAccessibleContext()
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{
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// Get the AccessibleContext of this object
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return null;
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}
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public Icon getDisabledIcon()
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{
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// Returns the value of the disabledIcon property if it's been set, If it hasn't been set and the value of the icon property is an ImageIcon, we compute a "grayed out" version of the icon and update the disabledIcon property with that.
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return null;
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}
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public int getDisplayedMnemonic()
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{
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// Return the keycode that indicates a mnemonic key.
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return 0;
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}
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public int getHorizontalAlignment()
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{
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// Returns the alignment of the label's contents along the X axis.
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return hor_align;
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}
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public int getHorizontalTextPosition()
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{
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// Returns the horizontal position of the label's text, relative to its image.
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return hor_text_pos;
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}
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public Icon getIcon()
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{ return icon; }
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public int getIconTextGap()
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{
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// Returns the amount of space between the text and the icon displayed in this label.
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return 0;
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}
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public Component getLabelFor()
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{
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// Get the component this is labelling.
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return null;
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}
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public String getText()
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{ return text; }
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public String getUIClassID()
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{ return "JLabel"; }
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public int getVerticalAlignment()
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{
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// Returns the alignment of the label's contents along the Y axis.
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return vert_align;
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}
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public int getVerticalTextPosition()
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{
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// Returns the vertical position of the label's text, relative to its image.
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return vert_text_pos;
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}
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public boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h)
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{
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// This is overriden to return false if the current Icon's Image is not equal to the passed in Image img.
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return (img == icon);
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}
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protected String paramString()
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{
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// Returns a string representation of this JLabel.
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return "JLabel";
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}
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public void setDisabledIcon(Icon disabledIcon)
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{
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// Set the icon to be displayed if this JLabel is "disabled" (JLabel.setEnabled(false)).
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}
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public void setDisplayedMnemonic(char aChar)
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{
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// Specifies the displayedMnemonic as a char value.
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}
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public void setDisplayedMnemonic(int key)
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{
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// Specify a keycode that indicates a mnemonic key.
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}
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public void setHorizontalAlignment(int alignment)
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{
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// Sets the alignment of the label's contents along the X axis.
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hor_align = alignment;
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}
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public void setHorizontalTextPosition(int textPosition)
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{
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// Sets the horizontal position of the label's text, relative to its image.
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hor_text_pos = textPosition;
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}
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public void setIcon(Icon icon)
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{
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this.icon = icon;
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if (icon != null)
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{
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// XXX FIXME - icons do not know their parent
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// icon.setParent(this);
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}
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revalidate();
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repaint();
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}
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public void setIconTextGap(int iconTextGap)
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{
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gap = iconTextGap;
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}
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public void setLabelFor(Component c)
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{
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// Set the component this is labelling.
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}
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public void setText(String text)
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{
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this.text = text;
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revalidate();
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repaint();
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}
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public void setVerticalAlignment(int alignment)
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{
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// Sets the alignment of the label's contents along the Y axis.
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vert_align = alignment;
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}
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public void setVerticalTextPosition(int textPosition)
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{
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// Sets the vertical position of the label's text, relative to its image.
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vert_text_pos = textPosition;
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}
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public void updateUI()
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{
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LabelUI b = (LabelUI)UIManager.getUI(this);
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setUI(b);
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}
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}
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