Fix blank tiles on large windows and tilt (#522)

vtm-android/src/org/oscim/android/MapView.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2012 Hannes Janetzek
- * Copyright 2016-2017 devemux86
+ * Copyright 2016-2018 devemux86
+ * Copyright 2018 Gustl22
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -18,11 +19,16 @@
 package org.oscim.android;
 
 import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
 import android.content.Context;
+import android.graphics.Point;
 import android.opengl.GLSurfaceView;
+import android.os.Build;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
+import android.view.Display;
 import android.view.GestureDetector;
+import android.view.WindowManager;
 
 import org.oscim.android.canvas.AndroidGraphics;
 import org.oscim.android.gl.AndroidGL;
@@ -45,7 +51,7 @@ import javax.microedition.khronos.opengles.GL10;
  * <p/>
  * add it your App, have a map!
  * <p/>
- * Dont forget to call onPause / onResume!
+ * Don't forget to call onPause / onResume!
  */
 public class MapView extends GLSurfaceView {
 
@@ -160,14 +166,18 @@ public class MapView extends GLSurfaceView {
     static class AndroidMap extends Map {
 
         private final MapView mMapView;
+        private final WindowManager mWindowManager;
 
         private boolean mRenderRequest;
         private boolean mRenderWait;
         private boolean mPausing;
 
+        private final Point mScreenSize = new Point();
+
         public AndroidMap(MapView mapView) {
             super();
             mMapView = mapView;
+            mWindowManager = (WindowManager) mMapView.getContext().getSystemService(Context.WINDOW_SERVICE);
         }
 
         @Override
@@ -180,6 +190,29 @@ public class MapView extends GLSurfaceView {
             return mMapView.getHeight();
         }
 
+        @Override
+        public int getScreenWidth() {
+            return getScreenSize().x;
+        }
+
+        @Override
+        public int getScreenHeight() {
+            return getScreenSize().y;
+        }
+
+        @SuppressWarnings("deprecation")
+        @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
+        private Point getScreenSize() {
+            Display display = mWindowManager.getDefaultDisplay();
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2)
+                display.getSize(mScreenSize);
+            else {
+                mScreenSize.x = display.getWidth();
+                mScreenSize.y = display.getHeight();
+            }
+            return mScreenSize;
+        }
+
         private final Runnable mRedrawCb = new Runnable() {
             @Override
             public void run() {
@@ -208,7 +241,7 @@ public class MapView extends GLSurfaceView {
             if (mPausing)
                 return;
 
-            /** TODO should not need to call prepareFrame in mRedrawCb */
+            /* TODO should not need to call prepareFrame in mRedrawCb */
             updateMap(false);
         }
 

vtm-gdx/src/org/oscim/gdx/GdxMap.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2013 Hannes Janetzek
  * Copyright 2016-2018 devemux86
+ * Copyright 2018 Gustl22
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -149,6 +150,16 @@ public abstract class GdxMap implements ApplicationListener {
             return Gdx.graphics.getHeight();
         }
 
+        @Override
+        public int getScreenWidth() {
+            return Gdx.graphics.getDisplayMode().width;
+        }
+
+        @Override
+        public int getScreenHeight() {
+            return Gdx.graphics.getDisplayMode().height;
+        }
+
         private final Runnable mRedrawCb = new Runnable() {
             @Override
             public void run() {

vtm-theme-comparator/src/org/oscim/theme/comparator/vtm/MapAdapter.java

@@ -51,6 +51,16 @@ public class MapAdapter extends Map implements Map.UpdateListener {
         return height;
     }
 
+    @Override
+    public int getScreenWidth() {
+        return Gdx.graphics.getDisplayMode().width;
+    }
+
+    @Override
+    public int getScreenHeight() {
+        return Gdx.graphics.getDisplayMode().height;
+    }
+
     private final Runnable mRedrawCb = new Runnable() {
         @Override
         public void run() {

vtm/src/org/oscim/layers/tile/TileManager.java

@@ -217,8 +217,9 @@ public class TileManager {
         mTilesEnd = 0;
         mTilesCount = 0;
 
-        /* set up TileSet large enough to hold current tiles */
+        /* Set up TileSet large enough to hold current tiles.
-        int num = Math.max(mMap.getWidth(), mMap.getHeight());
+         * Use screen size as workaround for blank tiles in #520. */
+        int num = Math.max(mMap.getScreenWidth(), mMap.getScreenHeight());
         int size = Tile.SIZE >> 1;
         int numTiles = (num * num) / (size * size) * 4;
 

vtm/src/org/oscim/map/Map.java

@@ -2,8 +2,9 @@
  * Copyright 2013 Hannes Janetzek
  * Copyright 2016 Andrey Novikov
  * Copyright 2016 Stephan Leuschner
- * Copyright 2016-2017 devemux86
+ * Copyright 2016-2018 devemux86
  * Copyright 2016 Longri
+ * Copyright 2018 Gustl22
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -272,15 +273,25 @@ public abstract class Map implements TaskQueue {
     }
 
     /**
-     * Return screen width in pixel.
+     * Return view width in pixel.
      */
     public abstract int getWidth();
 
     /**
-     * Return screen height in pixel.
+     * Return view height in pixel.
      */
     public abstract int getHeight();
 
+    /**
+     * Return screen width in pixel.
+     */
+    public abstract int getScreenWidth();
+
+    /**
+     * Return screen height in pixel.
+     */
+    public abstract int getScreenHeight();
+
     /**
      * Request to clear all layers before rendering next frame
      */

vtm/src/org/oscim/map/Viewport.java

@@ -42,6 +42,8 @@ public class Viewport {
     public final static int MAX_ZOOM_LEVEL = 20;
     public final static int MIN_ZOOM_LEVEL = 2;
     public final static float MIN_TILT = 0;
+
+    /* Note: limited by numTiles in TileManager to ~80° */
     public final static float MAX_TILT = 65;
 
     protected double mMaxScale = (1 << MAX_ZOOM_LEVEL);