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jlechner |
/* MetalCheckBoxIcon.java -- An icon for JCheckBoxes in the Metal L&F
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Copyright (C) 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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.plaf.metal;
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import java.awt.Component;
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import java.awt.Graphics;
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import java.io.Serializable;
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import javax.swing.Icon;
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import javax.swing.JCheckBox;
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import javax.swing.SwingConstants;
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import javax.swing.UIManager;
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import javax.swing.plaf.UIResource;
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/**
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* An {@link Icon} used by the {@link MetalCheckBoxUI} class.
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*
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* @author Roman Kennke (roman@kennke.org)
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*/
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public class MetalCheckBoxIcon
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implements Icon, UIResource, Serializable
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{
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/** Used to paint the border of the icon. */
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MetalBorders.ButtonBorder border;
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/**
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* Creates a new MetalCheckBoxIcon instance.
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*/
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public MetalCheckBoxIcon()
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{
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border = new MetalBorders.ButtonBorder();
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}
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/**
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* Draws the check in the CheckBox.
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*
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* @param c the component to draw on
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* @param g the Graphics context to draw with
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* @param x the X position
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* @param y the Y position
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*/
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protected void drawCheck(Component c, Graphics g, int x, int y)
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{
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if (c.isEnabled())
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g.setColor(MetalLookAndFeel.getBlack());
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else
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g.setColor(MetalLookAndFeel.getControlDisabled());
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g.drawLine(3 + x, 5 + y, 3 + x, 9 + y);
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g.drawLine(4 + x, 5 + y, 4 + x, 9 + y);
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g.drawLine(5 + x, 7 + y, 9 + x, 3 + y);
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g.drawLine(5 + x, 8 + y, 9 + x, 4 + y);
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}
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/**
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* Returns the size (both X and Y) of the checkbox icon.
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*
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* @return the size of the checkbox icon
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*/
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protected int getControlSize()
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{
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return 13;
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}
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/**
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* Returns the width of the icon in pixels.
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*
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* @return the width of the icon in pixels
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*/
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public int getIconWidth()
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{
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return getControlSize();
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}
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/**
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* Returns the height of the icon in pixels.
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*
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* @return the height of the icon in pixels
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*/
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public int getIconHeight()
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{
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return getControlSize();
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}
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/**
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* Paints the icon. This first paints the border of the CheckBox and
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* if the CheckBox is selected it calls {@link #drawCheck} to draw
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* the check.
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*
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* @param c the Component to draw on (gets casted to JCheckBox)
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* @param g the Graphics context to draw with
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* @param x the X position
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* @param y the Y position
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*/
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public void paintIcon(Component c, Graphics g, int x, int y)
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{
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if (UIManager.get("CheckBox.gradient") != null)
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MetalUtils.paintGradient(g, x, y, getIconWidth(), getIconHeight(),
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SwingConstants.VERTICAL, "CheckBox.gradient");
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border.paintBorder(c, g, x, y, getIconWidth(), getIconHeight());
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JCheckBox cb = (JCheckBox) c;
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if (cb.isSelected())
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drawCheck(c, g, x, y);
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}
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}
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