protected void drawPointLegend(
VPFSymbolAttributes attr, Graphics2D g2, int width, int height, int margin) {
if (attr.getIconImageSource() == null) return;
BufferedImage icon = getImage(attr.getIconImageSource());
if (icon != null) {
// icon width / height
int iw = icon.getWidth();
int ih = icon.getHeight();
// draw area width / height
int dw = width - margin * 2;
int dh = height - margin * 2;
// draw scale to fit icon inside draw area
float sx = iw > dw ? (float) dw / iw : 1f; // shrink only
float sy = ih > dh ? (float) dh / ih : 1f;
float scale = Math.min(sx, sy);
iw = (int) ((float) iw * scale);
ih = (int) ((float) ih * scale);
// Center image and draw
int x1 = iw < dw ? margin + (dw - iw) / 2 : margin;
int y1 = ih < dh ? margin + (dh - ih) / 2 : margin;
g2.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(icon, x1, y1, iw, ih, null);
}
}
