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/* MultilineToolTipUI.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* This program 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 of the License, or (at
* your option) any later version.
*
* This program 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.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.gui;
import javax.swing.JToolTip;
import javax.swing.JViewport;
import javax.swing.plaf.basic.BasicToolTipUI;
import javax.swing.plaf.ComponentUI;
import javax.swing.CellRendererPane;
import javax.swing.JEditorPane;
import javax.swing.JComponent;
import java.awt.Graphics;
import java.awt.Dimension;
import java.awt.Insets;
import org.grinvin.util.GrinvinUtilities;
/**
* UI for {@link MultilineToolTip}.
*/
class MultilineToolTipUI extends BasicToolTipUI {
private static final MultilineToolTipUI sharedInstance = new MultilineToolTipUI();
protected CellRendererPane rendererPane;
private static JEditorPane editorPane;
public static ComponentUI createUI(JComponent c) {
return sharedInstance;
}
public MultilineToolTipUI() {
super();
}
public void installUI(JComponent c) {
super.installUI(c);
rendererPane = new CellRendererPane();
c.add(rendererPane);
}
public void uninstallUI(JComponent c) {
super.uninstallUI(c);
c.remove(rendererPane);
rendererPane = null;
}
public void paint(Graphics g, JComponent c) {
Dimension size = c.getSize();
editorPane.setBackground(c.getBackground());
rendererPane.paintComponent(g, editorPane, c, 1, 1, size.width - 1, size.height - 1, true);
}
public Dimension getPreferredSize(JComponent c) {
Insets insets = c.getInsets();
String tipText = ((JToolTip)c).getTipText();
if (tipText == null || tipText.trim().equals(""))
return new Dimension(0,0);
//get font info
String style = GrinvinUtilities.getStyleSheetForFont("ToolTip.font");
tipText = "<html><head><style><!--body{" + style + "margin: 1px;}--></style></head><body>" + tipText + "</body></html>";
editorPane = new JEditorPane("text/html",tipText);
editorPane.setEditable(false);
JViewport vp = new JViewport();
vp.setView(editorPane);
rendererPane.removeAll();
rendererPane.add(vp);
int width = ((MultilineToolTip)c).getTipWidth();
Dimension d = vp.getPreferredSize();
if( width < d.width )
d.width = width;
vp.setSize(d);
editorPane.setSize(d);
//editorPane.setSize(editorPane.getPreferredSize());
//d.height = editorPane.getHeight();
d.height = editorPane.getPreferredSize().height;
vp.setSize(d);
d.width += (insets.left+insets.right);
d.height += (insets.top+insets.bottom);
return d;
}
public Dimension getMinimumSize(JComponent c) {
return getPreferredSize(c);
}
public Dimension getMaximumSize(JComponent c) {
return getPreferredSize(c);
}
}
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