/**
* Copyright (c) 2012, The National Archives <pronom@nationalarchives.gsi.gov.uk>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of the The National Archives nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package uk.gov.nationalarchives.droid.gui.treemodel;
import java.awt.Color;
import java.util.List;
import javax.swing.JTable;
import javax.swing.RowSorter;
import javax.swing.RowSorter.SortKey;
/**
* @author a-mpalmer
*
*/
public final class TreeUtils {
private static final double LIGHTER_SCALE = 1.05;
private static final double DARKER_SCALE = 0.95;
private static final int MINVALUE = 0;
private static final int MAXVALUE = 255;
private TreeUtils() {
}
private static int getScaledColorComponent(int colorComponent, double scaleFactor) {
int scaledValue = (int) (colorComponent * scaleFactor);
if (scaledValue < MINVALUE) {
scaledValue = MINVALUE;
} else if (scaledValue > MAXVALUE) {
scaledValue = MAXVALUE;
}
return scaledValue;
}
/**
*
* @param color The color to adjust
* @param scaleFactor the amount to scale the colors by
* @return The adjusted color
*/
public static Color getScaledColor(Color color, double scaleFactor) {
return new Color(
getScaledColorComponent(color.getRed(), scaleFactor),
getScaledColorComponent(color.getGreen(), scaleFactor),
getScaledColorComponent(color.getBlue(), scaleFactor));
}
/**
*
* @param color The color to make darker
* @return The darker color
*/
public static Color getDarkerColor(Color color) {
return getScaledColor(color, DARKER_SCALE);
}
/**
*
* @param color The color to make lighter
* @return The lighter color
*/
public static Color getLighterColor(Color color) {
return getScaledColor(color, LIGHTER_SCALE);
}
/**
* Returns whether a table column is sorted.
* @param table - the table to check
* @param column - the column in the table to check.
* @return boolean - whether the column is sorted or not.
*/
public static boolean isColumnSorted(JTable table, int column) {
boolean isSorted = false;
final int modelColumn = table.convertColumnIndexToModel(column);
RowSorter sorter = table.getRowSorter();
if (sorter != null) {
List<? extends SortKey> sortKeys = sorter.getSortKeys();
for (SortKey sortKey : sortKeys) {
if (sortKey.getColumn() == modelColumn) {
isSorted = true;
break;
}
}
}
return isSorted;
}
}