@Override
public void paint(Graphics g) {
super.paint(g);
// set where inside the dialog, the chart needs to be drawn
Rectangle clip = new Rectangle(PAD, PAD, getWidth() - (2 * PAD), getHeight() - (2 * PAD));
// draw the background of the chart
drawChartBackground(g, clip);
// set the position of the axis in case they moved
if (yAxis.isLogScale()) {
xAxis.setPosition(yAxis.dataValueToScreenPosition(1, clip));
} else {
xAxis.setPosition(yAxis.dataValueToScreenPosition(0, clip));
}
if (xAxis.isLogScale()) {
yAxis.setPosition(xAxis.dataValueToScreenPosition(1, clip));
} else {
yAxis.setPosition(xAxis.dataValueToScreenPosition(0, clip));
}
// draw the grid
xAxis.drawGrid(g, clip);
yAxis.drawGrid(g, clip);
// draw the curve
drawGraphics(g, clip, chartType);
// draw the axis
xAxis.drawAxis(g, clip);
yAxis.drawAxis(g, clip);
// draw minor units
xAxis.drawMinorUnit(g, clip);
yAxis.drawMinorUnit(g, clip);
// draw major units
xAxis.drawMajorUnit(g, clip);
yAxis.drawMajorUnit(g, clip);
// draw the chart legend
drawLegend(g);
}
/**
* Method to translate the coordinates of the data point to the point on screen
*
* @param x x component of a data point
* @param y y component of a data point
* @return Point
*/
private Point getTranslatedPoint(double x, double y) {
Point translatedPoint = new Point();
int realWidth = getWidth() - (2 * PAD);
int realHeight = getHeight() - (2 * PAD);
Rectangle clip = new Rectangle(PAD, PAD, realWidth, realHeight);
translatedPoint.x = xAxis.dataValueToScreenPosition(x, clip);
translatedPoint.y = yAxis.dataValueToScreenPosition(y, clip);
return translatedPoint;
}