altosui: Display full map preload area in view.

This involved fixing the map view to support arbitrary sizes, and then
exposing a synchronous tile loading API so that the progress bar could
be used to show tile loading progress.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/altosui/AltosSiteMapTile.java b/altosui/AltosSiteMapTile.java
index 8301f42b..66da7c54 100644
--- a/altosui/AltosSiteMapTile.java
+++ b/altosui/AltosSiteMapTile.java
@@ -35,11 +35,16 @@ public class AltosSiteMapTile extends JLayeredPane {
 	JLabel mapLabel;
 	JLabel draw;
 	Graphics2D g2d;
+	int px_size;
 
 	public void loadMap(ImageIcon icn) {
 		mapLabel.setIcon(icn);
 	}
 
+	public void clearMap() {
+		fillLabel(mapLabel, Color.GRAY, px_size);
+	}
+
 	static Color stateColors[] = {
 		Color.WHITE,  // startup
 		Color.WHITE,  // idle
@@ -90,7 +95,8 @@ public class AltosSiteMapTile extends JLayeredPane {
 		return g;
 	}
 
-	public AltosSiteMapTile(int px_size) {
+	public AltosSiteMapTile(int in_px_size) {
+		px_size = in_px_size;
 		setPreferredSize(new Dimension(px_size, px_size));
 
 		mapLabel = new JLabel();