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[simantics/district.git] / org.simantics.district.maps / src / org / simantics / maps / debug / DebugTileProvider.java

diff --git a/org.simantics.district.maps/src/org/simantics/maps/debug/DebugTileProvider.java b/org.simantics.district.maps/src/org/simantics/maps/debug/DebugTileProvider.java
new file mode 100644 (file)
index 0000000..bb868ff
--- /dev/null
+++ b/org.simantics.district.maps/src/org/simantics/maps/debug/DebugTileProvider.java
@@ -0,0 +1,133 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.maps.debug;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.RenderingHints;
+import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import org.simantics.maps.ProvisionException;
+import org.simantics.maps.tile.ITileProvider;
+import org.simantics.maps.tile.TileKey;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class DebugTileProvider implements ITileProvider {
+
+    private final Rectangle2D EXTENT = new Rectangle2D.Double(-180, -90, 360, 180);
+
+    private int tileSize;
+
+    private URI source;
+
+    public DebugTileProvider(int tileSize) {
+        this.tileSize = tileSize;
+
+        try {
+            this.source = new URI("debug://localhost");
+        } catch (URISyntaxException e) {
+            throw new Error("Should never happen", e);
+        }
+    }
+
+    @Override
+    public URI getSource() {
+        return source;
+    }
+
+    @Override
+    public Rectangle2D getExtent() {
+        return (Rectangle2D) EXTENT.clone();
+    }
+
+    @Override
+    public Image get(TileKey key) throws ProvisionException {
+        int level = key.getLevel();
+        int x = key.getX();
+        int y = key.getY();
+
+        double xTiles = Math.pow(2, level + 1);
+        double yTiles = Math.pow(2, level);
+
+        if (level < 0)
+            throw new IllegalArgumentException("invalid tile level " + level + " (tile=" + key +")");
+        if (x < 0 || x >= (int) xTiles)
+            throw new IllegalArgumentException("tile x out of bounds " + x + " (tile=" + key +")");
+        if (y < 0 || y >= (int) yTiles)
+            throw new IllegalArgumentException("tile y out of bounds " + y + " (tile=" + key +")");
+
+        Rectangle2D r = new Rectangle2D.Double();
+
+        double minx = -180;
+        double miny = -90;
+        double w = 360;
+        double h = 180;
+
+        double xdelta = w / xTiles;
+        double ydelta = h / yTiles;
+        double xx = x;
+        double yy = yTiles - y - 1;
+
+        r.setFrame(
+                minx + xdelta*xx,
+                miny + ydelta*yy,
+                xdelta,
+                ydelta
+        );
+//        System.out.println(yTiles + ", " + key.y + " => " + r);
+
+        BufferedImage image = new BufferedImage(tileSize, tileSize, BufferedImage.TYPE_3BYTE_BGR);
+        Graphics2D g = image.createGraphics();
+        try {
+            g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+            g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+
+            g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 32));
+
+            g.setColor(Color.BLACK);
+            g.fillRect(0, 0, tileSize, tileSize);
+            g.setColor(Color.LIGHT_GRAY);
+            g.fillRect(1, 1, tileSize - 1, tileSize - 1);
+            g.setColor(Color.BLACK);
+
+            drawCenteredString(g, tileSize + "x" + tileSize, tileSize, tileSize / 2 - 50);
+            drawCenteredString(g, "(" + x + ", " + y + ")(" + level + ")", tileSize, tileSize / 2 + 50);
+
+            drawCenteredString(g, r.getMaxY() + "", tileSize, 50);
+            drawCenteredString(g, r.getMinY() + "", tileSize, 500);
+            g.drawString(r.getMinX() + "", 20, tileSize / 2);
+            g.drawString(r.getMaxX() + "", 412, tileSize / 2);
+
+            // Simulate network delays
+            try { Thread.sleep(100); } catch (InterruptedException e) {}
+
+            return image;
+        } finally {
+            g.dispose();
+        }
+    }
+
+    private void drawCenteredString(Graphics2D g, String str, int width, int y) {
+        FontMetrics metrics = g.getFontMetrics();
+        Rectangle2D r2d = metrics.getStringBounds(str, g);
+        g.drawString(str, (int)(width / 2 - r2d.getWidth() / 2.0), y);
+    }
+
+}