Add platform identification (#286)

vtm/src/org/oscim/backend/CanvasAdapter.java

@@ -1,6 +1,7 @@
 /*
  * Copyright 2013 Hannes Janetzek
  * Copyright 2016 devemux86
+ * Copyright 2017 Longri
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -53,6 +54,11 @@ public abstract class CanvasAdapter {
      */
     public static float dpi = DEFAULT_DPI;
 
+    /**
+     * The used platform.
+     */
+    public static Platform platform = Platform.UNKNOWN;
+
     /**
      * The scale.
      */

vtm/src/org/oscim/backend/GLAdapter.java

@@ -43,5 +43,6 @@ public class GLAdapter {
 
     public static void init(GL gl20) {
         gl = gl20;
+        GDX_DESKTOP_QUIRKS = CanvasAdapter.platform.GDX_DESKTOP_QUIRKS;
     }
 }

vtm/src/org/oscim/backend/Platform.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2017 Longri
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.oscim.backend;
+
+
+public enum Platform {
+    ANDROID(false, false),
+    IOS(true, false),
+    MAC_OS(true, true),
+    LINUX(false, true),
+    WINDOWS(false, true),
+    WEB(false, false),
+    UNKNOWN(false, false);
+
+
+    Platform(boolean buildingLayerTranslucent, boolean desktopQuirks) {
+        this.BUILDING_LAYER_TRANSLUCENT = buildingLayerTranslucent;
+        this.GDX_DESKTOP_QUIRKS = desktopQuirks;
+    }
+
+
+    public boolean BUILDING_LAYER_TRANSLUCENT;
+
+    public boolean GDX_DESKTOP_QUIRKS;
+
+    /**
+     * Returns true when This is WINDOWS, LINUX or MAC_OS other, false
+     *
+     * @return boolean
+     */
+    public boolean isAnyDesktop() {
+        return this == LINUX || this == WINDOWS || this == MAC_OS;
+    }
+}