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/*
This file is part of jofc2.
jofc2 is free software: you can redistribute it and/or modify
it under the terms of the Lesser GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
jofc2 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.
See .
*/
package ro.nextreports.jofc2.model;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import ro.nextreports.jofc2.OFC;
import ro.nextreports.jofc2.OFCException;
import ro.nextreports.jofc2.model.axis.XAxis;
import ro.nextreports.jofc2.model.axis.YAxis;
import ro.nextreports.jofc2.model.elements.Element;
import ro.nextreports.jofc2.model.elements.Legend;
import ro.nextreports.jofc2.model.elements.Tooltip;
/**
* This is the most important class in the Java OFC library. Start here,
* configuring the title, axes, legends, labels, and draw-able elements in your
* chart. Coerce the object to a String with the toString() method to get the
* chart data back out.
*/
public class Chart implements Serializable {
private static final long serialVersionUID = -1868082240169089976L;
private Text title;
private XAxis x_axis;
private YAxis y_axis;
private YAxis y_axis_right;
private Text y_legend;
private Text x_legend;
private String bg_colour;
private int is_decimal_separator_comma = 0;
private int is_fixed_num_decimals_forced = 0;
private int is_thousand_separator_disabled = 0;
private int num_decimals = 2;
private Collection elements = new ArrayList();
private Legend legend;
private Tooltip tooltip;
private String inner_bg_colour;
public XAxis getXAxis() {
return x_axis;
}
public Chart() {
//nothing...
}
public Chart(String titleText) {
this(titleText, null);
}
public Chart(String titleText, String style) {
this.setTitle(new Text(titleText, style));
}
public Tooltip getTooltip()
{
return tooltip;
}
public void setTooltip(Tooltip tooltip)
{
this.tooltip = tooltip;
}
public Chart setXAxis(XAxis x_axis) {
this.x_axis = x_axis;
return this;
}
public YAxis getYAxis() {
return y_axis;
}
public Chart setYAxis(YAxis y_axis) {
this.y_axis = y_axis;
return this;
}
public Chart setYAxisRight(YAxis y_axis_right) {
this.y_axis_right = y_axis_right;
return this;
}
public YAxis getYAxisRight() {
return y_axis_right;
}
public Text getTitle() {
return title;
}
public Chart setTitle(Text title) {
this.title = title;
return this;
}
public Text getXLegend() {
return x_legend;
}
public Chart setXLegend(Text x_legend) {
this.x_legend = x_legend;
return this;
}
public Text getYLegend() {
return y_legend;
}
public Chart setYLegend(Text y_legend) {
this.y_legend = y_legend;
return this;
}
public String getBackgroundColour() {
return bg_colour;
}
public Chart setBackgroundColour(String bg_colour) {
this.bg_colour = bg_colour;
return this;
}
public Collection getElements() {
return elements;
}
public Chart setElements(Collection elements) {
this.elements.clear();
this.elements.addAll(elements);
return this;
}
public Chart addElements(Element... e) {
elements.addAll(Arrays.asList(e));
return this;
}
public Chart addElements(Collection coll) {
elements.addAll(coll);
return this;
}
public boolean removeElement(Element e) {
return elements.remove(e);
}
public Element getElementByText(String text) {
for (Element e : getElements()) {
if (text.equals(e.getText())) return e;
}
return null;
}
/**
* @throws OFCException can throw an OFCException if there is a problem
* rendering this Chart object. This exception would indicate an issue with
* the ro.nextreports.jofc2 library itself.
*/
@Override
public String toString() throws OFCException {
return OFC.getInstance().render(this);
}
/**
* @return a well formatted JSON File which is much more easy for debugging
* (toString() returns only one line)
*/
public String toDebugString() {
return OFC.getInstance().prettyPrint(this, 3);
}
/**
* @return true if a comma is used as decimal separator and
* false if a dot is used as decimal separator.
*/
public boolean isDecimalSeparatorComma() {
return is_decimal_separator_comma == 1;
}
/**
* Configures the symbols used to format decimal numbers. If the given value
* is false the American format (e.g. 1,234.45) is used. If the
* given value is true the German format (1.234,45) is used.
* Other formats like the French one are not yet supported by OFC.
*
* @param is_decimal_separator_comma
* true sets the decimal format to German,
* false to American.
*/
public void setDecimalSeparatorIsComma(boolean is_decimal_separator_comma) {
this.is_decimal_separator_comma = is_decimal_separator_comma ? 1 : 0;
}
/**
* @return true if decimals are fixed to num_decimals and
* false if not.
*/
public boolean isFixedNumDecimalsForced() {
return is_fixed_num_decimals_forced == 1;
}
/**
* Configures OFC to use fixed decimals (with num_decimals length). E.g.
* num_decimals=2 for true 1.1 will be 1.10 or 1 will be 1.00,
* for false 1.1 remains 1.1 and 1 remains 1
*
* @param is_fixed_num_decimals_forced
* true sets OFC to use fixed decimal length
* false switches off fixed decimal length
*/
public void setFixedNumDecimalsForced(boolean is_fixed_num_decimals_forced) {
this.is_fixed_num_decimals_forced = is_fixed_num_decimals_forced ? 1 : 0;
}
/**
* @return true if thousand separators are used (e.g. 1.000 or
* 1,000... depending on is_decimal_separator_comma),
* false otherwise.
*/
public boolean isThousandSeparatorDisabled() {
return is_thousand_separator_disabled == 1;
}
/**
* @param is_thousand_separator_disabled
* true turns on the thousand separator (e.g. 1.000 or 1,000...
* depending on is_decimal_separator_comma)
* false turns of the thousand separator (e.g. 1000)
*/
public void setThousandSeparatorDisabled(boolean is_thousand_separator_disabled) {
this.is_thousand_separator_disabled = is_thousand_separator_disabled ? 1 : 0;
}
/**
* @return the max number of decimals printed out in OFC.
*/
public int getNumDecimals() {
return num_decimals;
}
/**
* @param num_decimals the max number of decimals printed out in OFC.
* Allowed values 0 - 16.
*/
public void setNumDecimals(int num_decimals) {
this.num_decimals = num_decimals;
}
public void computeYAxisRange(int steps) {
Double min = null;
double max = 0;
double stepWidth = 1;
if (getElements() != null) {
if (getYAxis() == null) {
YAxis ya = new YAxis();
this.setYAxis(ya);
}
for (Element e : getElements()) {
max = Math.max(max, e.getMaxValue());
min = nullSafeMin(min, e.getMinValue());
}
if (min == null) {
min = 0.0;
}
stepWidth = getStepWidth(Math.abs(max - min), steps);
min = Math.floor(min / stepWidth) * stepWidth;
max = Math.ceil(max / stepWidth) * stepWidth;
getYAxis().setRange(min, max, stepWidth);
}
}
private Double nullSafeMin(Double min, double doubleValue) {
if (null == min) {
min = doubleValue;
}
min = Math.min(min, doubleValue);
return min;
}
private double getStepWidth(double distance, int steps) {
double result = distance / steps;
double exponent = Math.floor(Math.log10(result))+1;
result = result / Math.pow(10, exponent);
if (result > 0.5) {
result = 1;
} else if (result > 0.25) {
result = 0.5;
} else {
result = 0.25;
}
return result * Math.pow(10, exponent);
}
public Legend getLegend() {
return legend;
}
public void setLegend(Legend legend) {
this.legend = legend;
}
public void setInnerBackgroundColour(String inner_bg_colour) {
this.inner_bg_colour = inner_bg_colour;
}
public String getInnerBackgroundColour() {
return inner_bg_colour;
}
}
