com.alee.laf.table.renderers.WebTableCellRenderer Maven / Gradle / Ivy

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/*
 * This file is part of WebLookAndFeel library.
 *
 * WebLookAndFeel library 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 3 of the License, or
 * (at your option) any later version.
 *
 * WebLookAndFeel library 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 WebLookAndFeel library.  If not, see .
 */

package com.alee.laf.table.renderers;

import com.alee.laf.label.WebLabel;
import com.alee.managers.style.StyleId;

import javax.swing.*;
import javax.swing.table.TableCellRenderer;
import java.awt.*;

/**
 * @author Mikle Garin
 */

public class WebTableCellRenderer extends WebLabel implements TableCellRenderer
{
    private Color unselectedForeground;
    private Color unselectedBackground;

    public WebTableCellRenderer ()
    {
        super ();
        setName ( "Table.cellRenderer" );
    }

    @Override
    public void setForeground ( final Color c )
    {
        super.setForeground ( c );
        unselectedForeground = c;
    }

    @Override
    public void setBackground ( final Color c )
    {
        super.setBackground ( c );
        unselectedBackground = c;
    }

    @Override
    public void updateUI ()
    {
        super.updateUI ();
        setForeground ( null );
        setBackground ( null );
    }

    @Override
    public Component getTableCellRendererComponent ( final JTable table, final Object value, final boolean isSelected,
                                                     final boolean hasFocus, final int row, final int column )
    {
        // Updating custom style ID
        setStyleId ( StyleId.tableCellRenderer.at ( table ) );

        // todo Drop indication
        //
        //        final Color fg = null;
        //        final Color bg = null;
        //
        //        JTable.DropLocation dropLocation = table.getDropLocation ();
        //        if ( dropLocation != null && !dropLocation.isInsertRow () && !dropLocation.isInsertColumn () && dropLocation.getRow () == row &&
        //                dropLocation.getColumn () == column )
        //        {
        //
        //            fg = UIManager.getColor ( "Table.dropCellForeground" );
        //            bg = UIManager.getColor ( "Table.dropCellBackground" );
        //            isSelected = true;
        //        }

        if ( isSelected )
        {
            super.setForeground ( table.getSelectionForeground () );
            super.setBackground ( table.getSelectionBackground () );
        }
        else
        {
            Color background = unselectedBackground != null ? unselectedBackground : table.getBackground ();
            if ( background == null || background instanceof javax.swing.plaf.UIResource )
            {
                final Color alternateColor = UIManager.getColor ( "Table.alternateRowColor" );
                if ( alternateColor != null && row % 2 == 0 )
                {
                    background = alternateColor;
                }
            }
            super.setForeground ( unselectedForeground != null ? unselectedForeground : table.getForeground () );
            super.setBackground ( background );
        }

        setFont ( table.getFont () );
        setValue ( value );
        setEnabled ( table.isEnabled () );

        return this;
    }

    @Override
    public boolean isOpaque ()
    {
        final Color back = getBackground ();
        Component p = getParent ();
        if ( p != null )
        {
            p = p.getParent ();
        }

        // p should now be the JTable.
        final boolean colorMatch = ( back != null ) && ( p != null ) && back.equals ( p.getBackground () ) && p.isOpaque ();
        return !colorMatch && super.isOpaque ();
    }

    protected void setValue ( final Object value )
    {
        setText ( ( value == null ) ? "" : value.toString () );
    }

    public static class UIResource extends WebTableCellRenderer implements javax.swing.plaf.UIResource
    {
    }
}