adapt to location-rendering-api

src/com/b44t/messenger/DcArray.java

@@ -0,0 +1,25 @@
+package com.b44t.messenger;
+
+public class DcArray {
+
+    public DcArray(long arrayCPtr) {
+        this.arrayCPtr = arrayCPtr;
+    }
+
+    @Override protected void finalize() throws Throwable {
+        super.finalize();
+        unrefArrayCPtr();
+        arrayCPtr = 0;
+    }
+
+    public native int       getCnt      ();
+    public native float     getLatitude (int index);
+    public native float     getLongitude(int index);
+    public native float     getAccuracy (int index);
+    public native long      getTimestamp(int index);
+    public native int       getMsgId    (int index);
+
+    // working with raw c-data
+    private long        arrayCPtr;    // CAVE: the name is referenced in the JNI
+    private native void unrefArrayCPtr();
+}

src/com/b44t/messenger/DcContext.java

@@ -21,6 +21,7 @@ public class DcContext {
     public final static int DC_EVENT_MSG_READ                    = 2015;
     public final static int DC_EVENT_CHAT_MODIFIED               = 2020;
     public final static int DC_EVENT_CONTACTS_CHANGED            = 2030;
+    public final static int DC_EVENT_LOCATION_CHANGED            = 2035;
     public final static int DC_EVENT_CONFIGURE_PROGRESS          = 2041;
     public final static int DC_EVENT_IMEX_PROGRESS               = 2051;
     public final static int DC_EVENT_IMEX_FILE_WRITTEN           = 2052;
@@ -154,6 +155,7 @@ public class DcContext {
     public native int          joinSecurejoin       (String qr);
     public native void         sendLocationsToChat  (int chat_id, int seconds);
     public native boolean      isSendingLocationsToChat(int chat_id);
+    public @NonNull DcArray    getLocations         (int chat_id, int contact_id) { return new DcArray(getLocationsCPtr(chat_id, contact_id)); }
 
     /**
      * @return true if at least one chat has location streaming enabled
@@ -180,4 +182,5 @@ public class DcContext {
     private native long getMsgCPtr       (int id);
     private native long getDraftCPtr    (int id);
     private native long getContactCPtr   (int id);
+    private native long getLocationsCPtr (int chat_id, int contact_id);
 }