com.d3x.morpheus.viz.table.DataFrameCellRenderer Maven / Gradle / Ivy
/*
* Copyright (C) 2014-2018 D3X Systems - All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.d3x.morpheus.viz.table;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.util.Calendar;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableCellRenderer;
/**
* A specialized renderer that formats cell values of various types for a DataFrameTable.
*
* @author Xavier Witdouck
*
* This is open source software released under the Apache 2.0 License
*/
public class DataFrameCellRenderer extends DefaultTableCellRenderer {
private static final Logger LOG = Logger.getLogger(DataFrameCellRenderer.class.getName());
private static int PERF_COUNT = 10000;
private int count;
private long time;
private DataFrameTable dataFrameTable;
/**
* Constructor
* @param dataFrameTable the table reference
*/
DataFrameCellRenderer(DataFrameTable dataFrameTable) {
this.dataFrameTable = dataFrameTable;
}
/**
* Returns a cell property that yields colors for numeric values
* @param zero the color for zero values
* @param positive the color for positive values
* @param negative the color for negative values
* @return the newly created property
*/
static DataFrameCellProperty createColorProperty(final Color zero, final Color positive, final Color negative) {
return new DataFrameCellProperty() {
public Object getValue(Object value) throws IllegalArgumentException {
if (value instanceof Number) {
final double number = ((Number)value).doubleValue();
return number > 0d ? positive : number < 0d ? negative : zero;
} else {
return zero;
}
}
};
}
@Override()
@SuppressWarnings("unchecked")
public Component getTableCellRendererComponent(JTable table, Object value, boolean selected, boolean focus, int rowIndex, int colIndex) {
final long t1 = System.currentTimeMillis();
final JLabel label = (JLabel)super.getTableCellRendererComponent(table, value, selected, focus, rowIndex, colIndex);
try {
final int columnIndex = dataFrameTable.getColumnIndex(table, colIndex);
final DataFrameCellFormat format = dataFrameTable.getCellFormat(rowIndex, columnIndex, false);
final DataFrameCellFormat cellFormat = format != null ? format : dataFrameTable.getDefaultCellFormat();
final Font font = cellFormat != null ? cellFormat.getFont() : null;
final Color background = getBackground(table, cellFormat, value, selected);
final Color foreground = getForeground(table, cellFormat, value, selected);
label.setBackground(background);
label.setForeground(foreground);
label.setFont(font != null ? font : table.getFont());
final String text = cellFormat.format(value);
label.setText(text);
if (value == null) {
label.setHorizontalAlignment(SwingConstants.CENTER);
} else if (value instanceof Double) {
final int alignment = cellFormat.getAlignment(SwingUtilities.RIGHT);
label.setHorizontalAlignment(alignment);
} else if (value instanceof Float) {
final int alignment = cellFormat.getAlignment(SwingUtilities.RIGHT);
label.setHorizontalAlignment(alignment);
} else if (value instanceof Number) {
final int alignment = cellFormat.getAlignment(SwingUtilities.RIGHT);
label.setHorizontalAlignment(alignment);
} else if (value instanceof String) {
final int alignment = cellFormat.getAlignment(SwingUtilities.LEFT);
label.setHorizontalAlignment(alignment);
} else if (value instanceof Date) {
final int alignment = cellFormat.getAlignment(SwingUtilities.LEFT);
label.setHorizontalAlignment(alignment);
} else if (value instanceof Calendar) {
final int alignment = cellFormat.getAlignment(SwingUtilities.LEFT);
label.setHorizontalAlignment(alignment);
} else if (value instanceof Boolean) {
final int alignment = cellFormat.getAlignment(SwingUtilities.CENTER);
label.setHorizontalAlignment(alignment);
} else {
final int alignment = cellFormat.getAlignment(SwingUtilities.RIGHT);
label.setHorizontalAlignment(alignment);
}
} catch (Throwable t) {
LOG.log(Level.SEVERE, t.getMessage(), t);
}
final long t2 = System.currentTimeMillis();
this.time += (t2-t1);
this.count++;
if (count % PERF_COUNT == 0) {
LOG.info("DataFrameCellRenderer cell time=" + (((double)time / (double)PERF_COUNT) * 1000000d) + " nanos, total time=" + time + " millis");
this.time = 0;
this.count = 0;
}
return label;
}
/**
* Returns the background color for the row and column coordinates
* @param table the table
* @param format the cell format
* @param value the cell value
* @param selected true if selected
* @return the background color
*/
@SuppressWarnings("unchecked")
protected final Color getBackground(JTable table, DataFrameCellFormat format, Object value, boolean selected) {
final Object background = format != null ? format.getBackground() : null;
if (background instanceof Color) {
final Color color = (Color)background;
return selected ? color.darker() : color;
} else if (background instanceof DataFrameCellProperty) {
final DataFrameCellProperty property = (DataFrameCellProperty)background;
final Object result = property.getValue(value);
if (result instanceof Color) return selected ? ((Color)result).darker() : (Color)result;
}
return selected ? table.getSelectionBackground() : table.getBackground();
}
/**
* Returns the foreground color for the row and column coordinates
* @param table the table
* @param format the cell format
* @param value the cell value
* @param selected true if selected
* @return the forefround color
*/
@SuppressWarnings("unchecked")
protected final Color getForeground(JTable table, DataFrameCellFormat format, Object value, boolean selected) {
final Object foreground = format != null ? format.getForeground() : null;
if (foreground instanceof Color) {
final Color color = (Color)foreground;
return selected ? color.darker() : color;
} else if (foreground instanceof DataFrameCellProperty) {
final DataFrameCellProperty property = (DataFrameCellProperty)foreground;
final Object result = property.getValue(value);
if (result instanceof Color) return selected ? ((Color)result).brighter() : (Color)result;
}
return selected ? table.getSelectionForeground() : table.getForeground();
}
}