/**
* Enables or disables the display of thumbnails. Does not update the display.
*
* @param useThumbs New thumbnail display status
* @since 6392
*/
public void setUseThumbs(boolean useThumbs) {
this.useThumbs = useThumbs;
if (useThumbs && !thumbsLoaded) {
startLoadThumbs();
} else if (!useThumbs) {
stopLoadThumbs();
}
}
@Override
public void paint(Graphics2D g, MapView mv, Bounds bounds) {
int width = mv.getWidth();
int height = mv.getHeight();
Rectangle clip = g.getClipBounds();
if (useThumbs) {
if (!thumbsLoaded) {
startLoadThumbs();
}
if (null == offscreenBuffer
|| offscreenBuffer.getWidth() != width // reuse the old buffer if possible
|| offscreenBuffer.getHeight() != height) {
offscreenBuffer = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
updateOffscreenBuffer = true;
}
if (updateOffscreenBuffer) {
Graphics2D tempG = offscreenBuffer.createGraphics();
tempG.setColor(new Color(0, 0, 0, 0));
Composite saveComp = tempG.getComposite();
tempG.setComposite(AlphaComposite.Clear); // remove the old images
tempG.fillRect(0, 0, width, height);
tempG.setComposite(saveComp);
if (data != null) {
for (ImageEntry e : data) {
if (e.getPos() == null) {
continue;
}
Point p = mv.getPoint(e.getPos());
if (e.hasThumbnail()) {
Dimension d = scaledDimension(e.getThumbnail());
Rectangle target =
new Rectangle(p.x - d.width / 2, p.y - d.height / 2, d.width, d.height);
if (clip.intersects(target)) {
tempG.drawImage(
e.getThumbnail(), target.x, target.y, target.width, target.height, null);
}
} else { // thumbnail not loaded yet
icon.paintIcon(
mv, tempG, p.x - icon.getIconWidth() / 2, p.y - icon.getIconHeight() / 2);
}
}
}
updateOffscreenBuffer = false;
}
g.drawImage(offscreenBuffer, 0, 0, null);
} else if (data != null) {
for (ImageEntry e : data) {
if (e.getPos() == null) {
continue;
}
Point p = mv.getPoint(e.getPos());
icon.paintIcon(mv, g, p.x - icon.getIconWidth() / 2, p.y - icon.getIconHeight() / 2);
}
}
if (currentPhoto >= 0 && currentPhoto < data.size()) {
ImageEntry e = data.get(currentPhoto);
if (e.getPos() != null) {
Point p = mv.getPoint(e.getPos());
int imgWidth;
int imgHeight;
if (useThumbs && e.hasThumbnail()) {
Dimension d = scaledDimension(e.getThumbnail());
imgWidth = d.width;
imgHeight = d.height;
} else {
imgWidth = selectedIcon.getIconWidth();
imgHeight = selectedIcon.getIconHeight();
}
if (e.getExifImgDir() != null) {
// Multiplier must be larger than sqrt(2)/2=0.71.
double arrowlength = Math.max(25, Math.max(imgWidth, imgHeight) * 0.85);
double arrowwidth = arrowlength / 1.4;
double dir = e.getExifImgDir();
// Rotate 90 degrees CCW
double headdir = (dir < 90) ? dir + 270 : dir - 90;
double leftdir = (headdir < 90) ? headdir + 270 : headdir - 90;
double rightdir = (headdir > 270) ? headdir - 270 : headdir + 90;
double ptx = p.x + Math.cos(Math.toRadians(headdir)) * arrowlength;
double pty = p.y + Math.sin(Math.toRadians(headdir)) * arrowlength;
double ltx = p.x + Math.cos(Math.toRadians(leftdir)) * arrowwidth / 2;
double lty = p.y + Math.sin(Math.toRadians(leftdir)) * arrowwidth / 2;
double rtx = p.x + Math.cos(Math.toRadians(rightdir)) * arrowwidth / 2;
double rty = p.y + Math.sin(Math.toRadians(rightdir)) * arrowwidth / 2;
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setColor(new Color(255, 255, 255, 192));
int[] xar = {(int) ltx, (int) ptx, (int) rtx, (int) ltx};
int[] yar = {(int) lty, (int) pty, (int) rty, (int) lty};
g.fillPolygon(xar, yar, 4);
g.setColor(Color.black);
g.setStroke(new BasicStroke(1.2f));
g.drawPolyline(xar, yar, 3);
}
if (useThumbs && e.hasThumbnail()) {
g.setColor(new Color(128, 0, 0, 122));
g.fillRect(p.x - imgWidth / 2, p.y - imgHeight / 2, imgWidth, imgHeight);
} else {
selectedIcon.paintIcon(mv, g, p.x - imgWidth / 2, p.y - imgHeight / 2);
}
}
}
}