src/Tizen.Maps/Interop/Interop.CoordinatesList.cs

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 using System;
  18 using System.Runtime.InteropServices;
  19
  20 internal static partial class Interop
  21 {
  22     [DllImport(Libraries.MapService, EntryPoint = "maps_coordinates_list_append")]
  23     internal static extern ErrorCode Append(this CoordinatesListHandle /* maps_coordinates_list_h */ coordinatesList, IntPtr /* maps_coordinates_h */ coordinates);
  24
  25     [DllImport(Libraries.MapService, EntryPoint = "maps_coordinates_list_remove")]
  26     internal static extern ErrorCode Remove(this CoordinatesListHandle /* maps_coordinates_list_h */ coordinatesList, CoordinatesHandle /* maps_coordinates_h */ coordinates);
  27
  28
  29     internal class CoordinatesListHandle : SafeMapsHandle
  30     {
  31         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
  32         internal delegate bool CoordinatesCallback(int index, IntPtr /* maps_coordinates_h */ coordinates, IntPtr /* void */ userData);
  33
  34         [DllImport(Libraries.MapService, EntryPoint = "maps_coordinates_list_create")]
  35         internal static extern ErrorCode Create(out IntPtr /* maps_coordinates_list_h */ coordinatesList);
  36
  37         [DllImport(Libraries.MapService, EntryPoint = "maps_coordinates_list_destroy")]
  38         internal static extern ErrorCode Destroy(IntPtr /* maps_coordinates_list_h */ coordinatesList);
  39
  40         [DllImport(Libraries.MapService, EntryPoint = "maps_coordinates_list_foreach")]
  41         internal static extern ErrorCode Foreach(IntPtr /* maps_coordinates_list_h */ coordinatesList, CoordinatesCallback callback, IntPtr /* void */ userData);
  42
  43         internal CoordinatesListHandle(IntPtr handle, bool needToRelease) : base(handle, needToRelease, Destroy) { }
  44
  45         internal CoordinatesListHandle(bool needToRelease = true) : this(IntPtr.Zero, needToRelease)
  46         {
  47             Create(out handle).ThrowIfFailed("Failed to create native handle");
  48         }
  49
  50         internal void Add(CoordinatesHandle handleToAdd)
  51         {
  52             using (var clonedHandle = CoordinatesHandle.CloneFrom(handleToAdd))
  53             {
  54                 if (this.Append(clonedHandle).WarnIfFailed("Failed to add coordinates to the list"))
  55                 {
  56                     clonedHandle.HasOwnership = false;
  57                 }
  58             }
  59         }
  60
  61         internal void ForEach(Action<CoordinatesHandle> action)
  62         {
  63             CoordinatesCallback callback = (index, handle, userData) =>
  64             {
  65                 action(CoordinatesHandle.CloneFrom(handle));
  66                 return true;
  67             };
  68
  69             Foreach(handle, callback, IntPtr.Zero).WarnIfFailed("Failed to get coordinates list from native handle");
  70         }
  71     }
  72 }