android/source/src/java/org/mozilla/gecko/gfx/DynamicTileLayer.java

   1 package org.mozilla.gecko.gfx;
   2
   3 import android.content.Context;
   4 import android.graphics.RectF;
   5
   6 public class DynamicTileLayer extends ComposedTileLayer {
   7     public DynamicTileLayer(Context context) {
   8         super(context);
   9     }
  10
  11     @Override
  12     protected RectF getViewPort(ImmutableViewportMetrics viewportMetrics) {
  13         RectF rect = viewportMetrics.getViewport();
  14         return inflate(roundToTileSize(rect, tileSize), getInflateFactor());
  15     }
  16
  17     @Override
  18     protected float getZoom(ImmutableViewportMetrics viewportMetrics) {
  19         return viewportMetrics.zoomFactor;
  20     }
  21
  22     @Override
  23     protected int getTilePriority() {
  24         return 0;
  25     }
  26
  27     private IntSize getInflateFactor() {
  28         return new IntSize(tileSize.width*2, tileSize.height*4);
  29     }
  30 }