/**
*
* The MIT License
*
* Copyright (c) 2011 the original author or authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.googlecode.charts4j.parameters;
import java.util.List;
import com.googlecode.charts4j.AxisStyle;
import com.googlecode.charts4j.collect.Lists;
/**
* Class for building axis styles parameter string for the Google Chart API.
*
* @author Julien Chastang (julien.c.chastang at gmail dot com)
*/
final class AxisStylesParameter extends AbstractParameter {
/** The Google Chart API axis styles parameter. */
private static final String URL_PARAMETER_KEY = "chxs";
/** The axis styles. */
private final List<PrivateAxisStyles> axisStyles = Lists.newLinkedList();
/**
* Add an axis style.
*
* @param index
* the index
* @param axisStyle
* the axisStyle
*/
void addAxisStyle(final int index, final AxisStyle axisStyle) {
axisStyles.add(new PrivateAxisStyles(index, axisStyle));
}
/**
* {@inheritDoc}
*/
@Override
public String getKey() {
return URL_PARAMETER_KEY;
}
/**
* {@inheritDoc}
*/
@Override
public String getValue() {
final StringBuilder sb = new StringBuilder();
int cnt = 0;
for (PrivateAxisStyles styles : axisStyles) {
sb.append(cnt++ > 0 ? "|" : "").append(styles);
}
return !axisStyles.isEmpty() ? sb.toString() : "";
}
/**
* A container class to hold axis styles.
*/
private static final class PrivateAxisStyles {
/** Draw tick marks. */
private static final String DRAW_TICK_MARKS = "t";
/** Draw axis lines. */
private static final String DRAW_AXIS_LINE = "l";
/** The index. */
private final int index;
/** The axis style. */
private final AxisStyle axisStyle;
/**
* Instantiate axis styles.
*
* @param index
* the index
* @param axisStyle
* the axisStyle
*/
private PrivateAxisStyles(final int index, final AxisStyle axisStyle) {
this.index = index;
this.axisStyle = axisStyle;
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
final StringBuilder sb = new StringBuilder(index + "," + axisStyle.getTextColor() + "," + axisStyle.getFontSize() + "," + axisStyle.getAlignment());
sb.append(getDrawingControlString(axisStyle) != null ? "," + getDrawingControlString(axisStyle) : "");
sb.append(axisStyle.getTickMarkColor() != null ? "," + axisStyle.getTickMarkColor() : "");
return sb.toString();
}
/**
* Build the drawing control string.
*
* @param axisStyle
* the axis style
*
* @return the drawing control string
*/
private String getDrawingControlString(final AxisStyle axisStyle) {
final StringBuilder sb = new StringBuilder();
if (axisStyle.drawTickMarks() != null) {
sb.append(axisStyle.drawTickMarks() ? DRAW_AXIS_LINE + DRAW_TICK_MARKS : DRAW_AXIS_LINE);
}
return sb.length() > 0 ? sb.toString() : null;
}
}
}