if (0 <= ref.y && ref.y < px_size)
in_any = true;
}
- if (!in_any) {
- final AltosSiteMapTile tile = new AltosSiteMapTile(px_size);
- final Point offset = tileOffset(pt);
- mapTiles.put(offset, tile);
+ Point offset = tileOffset(pt);
+ if (!in_any) {
Point2D.Double ref, lref;
ref = translatePoint(pt, tileCoordOffset(offset));
lref = translatePoint(last_pt, tileCoordOffset(offset));
- tile.show(state, crc_errors, lref, ref);
+ AltosSiteMapTile tile = createTile(offset);
+ tile.show(state, crc_errors, lref, ref);
initMap(tile, offset);
+ finishTileLater(tile, offset);
+ }
- SwingUtilities.invokeLater( new Runnable() {
- public void run() {
- addTileAt(tile, offset);
- setViewportView(comp);
- }
- } );
+ scrollRocketToVisible(pt);
+
+ if (offset != tileOffset(last_pt)) {
+ ensureTilesAround(offset);
}
+
last_pt = pt;
last_state = state.state;
}
+ private AltosSiteMapTile createTile(Point offset) {
+ AltosSiteMapTile tile = new AltosSiteMapTile(px_size);
+ mapTiles.put(offset, tile);
+ return tile;
+ }
+ private void finishTileLater(final AltosSiteMapTile tile,
+ final Point offset)
+ {
+ SwingUtilities.invokeLater( new Runnable() {
+ public void run() {
+ addTileAt(tile, offset);
+ }
+ } );
+ }
+
+ private void ensureTilesAround(Point base_offset) {
+ for (int x = -1; x <= 1; x++) {
+ for (int y = -1; y <= 1; y++) {
+ Point offset = new Point(base_offset.x + x, base_offset.y + y);
+ if (mapTiles.containsKey(offset))
+ continue;
+ AltosSiteMapTile tile = createTile(offset);
+ initMap(tile, offset);
+ finishTileLater(tile, offset);
+ }
+ }
+ }
+
+ private Point topleft = new Point(0,0);
+ private void scrollRocketToVisible(Point2D.Double pt) {
+ Rectangle r = comp.getVisibleRect();
+ Point2D.Double copt = translatePoint(pt, tileCoordOffset(topleft));
+ int dx = (int)copt.x - r.width/2 - r.x;
+ int dy = (int)copt.y - r.height/2 - r.y;
+ if (Math.abs(dx) > r.width/4 || Math.abs(dy) > r.height/4) {
+ r.x += dx;
+ r.y += dy;
+ comp.scrollRectToVisible(r);
+ }
+ }
+
private void addTileAt(AltosSiteMapTile tile, Point offset) {
if (Math.abs(offset.x) >= MAX_TILE_DELTA ||
Math.abs(offset.y) >= MAX_TILE_DELTA)
return;
}
+ boolean review = false;
+ Rectangle r = comp.getVisibleRect();
+ if (offset.x < topleft.x) {
+ r.x += (topleft.x - offset.x) * px_size;
+ topleft.x = offset.x;
+ review = true;
+ }
+ if (offset.y < topleft.y) {
+ r.y += (topleft.y - offset.y) * px_size;
+ topleft.y = offset.y;
+ review = true;
+ }
GridBagConstraints c = new GridBagConstraints();
c.anchor = GridBagConstraints.CENTER;
c.fill = GridBagConstraints.BOTH;
c.gridx = offset.x + MAX_TILE_DELTA;
c.gridy = offset.y + MAX_TILE_DELTA;
layout.setConstraints(tile, c);
+
comp.add(tile);
+ if (review) {
+ comp.scrollRectToVisible(r);
+ }
}
private AltosSiteMap(boolean knowWhatYouAreDoing) {
}
}
- JComponent comp;
- private GridBagLayout layout;
+ JComponent comp = new JComponent() { };
+ private GridBagLayout layout = new GridBagLayout();
public AltosSiteMap() {
- comp = new JComponent() {
- GrabNDrag scroller = new GrabNDrag(this);
- {
- addMouseMotionListener(scroller);
- addMouseListener(scroller);
- setAutoscrolls(true);
- }
- };
+ GrabNDrag scroller = new GrabNDrag(comp);
- layout = new GridBagLayout();
comp.setLayout(layout);
for (int x = -1; x <= 1; x++) {
for (int y = -1; y <= 1; y++) {
- AltosSiteMapTile t = new AltosSiteMapTile(px_size);
Point offset = new Point(x, y);
- mapTiles.put(offset, t);
+ AltosSiteMapTile t = createTile(offset);
addTileAt(t, offset);
}
}