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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2498 | - | 1 | |
| 2 | namespace GMap.NET.Internals |
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| 3 | { |
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| 4 | using System; |
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| 5 | using System.Collections.Generic; |
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| 6 | using System.Diagnostics; |
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| 7 | using System.Threading; |
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| 8 | using GMap.NET.Projections; |
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| 9 | using System.IO; |
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| 10 | using GMap.NET.MapProviders; |
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| 11 | using System.ComponentModel; |
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| 12 | |||
| 13 | #if NET40 |
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| 14 | using System.Collections.Concurrent; |
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| 15 | using System.Threading.Tasks; |
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| 16 | #endif |
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| 17 | |||
| 18 | #if PocketPC |
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| 19 | using OpenNETCF.ComponentModel; |
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| 20 | using OpenNETCF.Threading; |
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| 21 | using Thread=OpenNETCF.Threading.Thread2; |
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| 22 | #endif |
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| 23 | |||
| 24 | /// <summary> |
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| 25 | /// internal map control core |
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| 26 | /// </summary> |
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| 27 | internal class Core : IDisposable |
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| 28 | { |
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| 29 | public PointLatLng position; |
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| 30 | public GPoint positionPixel; |
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| 31 | |||
| 32 | public GPoint renderOffset; |
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| 33 | public GPoint centerTileXYLocation; |
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| 34 | public GPoint centerTileXYLocationLast; |
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| 35 | public GPoint dragPoint; |
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| 36 | public GPoint compensationOffset; |
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| 37 | |||
| 38 | public GPoint mouseDown; |
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| 39 | public GPoint mouseCurrent; |
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| 40 | public GPoint mouseLastZoom; |
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| 41 | |||
| 42 | public MouseWheelZoomType MouseWheelZoomType = MouseWheelZoomType.MousePositionAndCenter; |
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| 43 | public bool MouseWheelZoomEnabled = true; |
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| 44 | |||
| 45 | public PointLatLng? LastLocationInBounds = null; |
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| 46 | public bool VirtualSizeEnabled = false; |
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| 47 | |||
| 48 | public GSize sizeOfMapArea; |
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| 49 | public GSize minOfTiles; |
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| 50 | public GSize maxOfTiles; |
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| 51 | |||
| 52 | public GRect tileRect; |
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| 53 | public GRect tileRectBearing; |
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| 54 | //public GRect currentRegion; |
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| 55 | public float bearing = 0; |
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| 56 | public bool IsRotated = false; |
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| 57 | |||
| 58 | public bool fillEmptyTiles = true; |
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| 59 | |||
| 60 | public TileMatrix Matrix = new TileMatrix(); |
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| 61 | |||
| 62 | public List<DrawTile> tileDrawingList = new List<DrawTile>(); |
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| 63 | public FastReaderWriterLock tileDrawingListLock = new FastReaderWriterLock(); |
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| 64 | |||
| 65 | #if !NET40 |
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| 66 | public readonly Stack<LoadTask> tileLoadQueue = new Stack<LoadTask>(); |
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| 67 | #endif |
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| 68 | |||
| 69 | #if !PocketPC |
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| 70 | static readonly int GThreadPoolSize = 4; |
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| 71 | #else |
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| 72 | static readonly int GThreadPoolSize = 2; |
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| 73 | #endif |
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| 74 | |||
| 75 | DateTime LastTileLoadStart = DateTime.Now; |
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| 76 | DateTime LastTileLoadEnd = DateTime.Now; |
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| 77 | internal volatile bool IsStarted = false; |
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| 78 | int zoom; |
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| 79 | |||
| 80 | internal double scaleX = 1; |
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| 81 | internal double scaleY = 1; |
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| 82 | |||
| 83 | internal int maxZoom = 2; |
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| 84 | internal int minZoom = 2; |
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| 85 | internal int Width; |
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| 86 | internal int Height; |
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| 87 | |||
| 88 | internal int pxRes100m; // 100 meters |
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| 89 | internal int pxRes1000m; // 1km |
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| 90 | internal int pxRes10km; // 10km |
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| 91 | internal int pxRes100km; // 100km |
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| 92 | internal int pxRes1000km; // 1000km |
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| 93 | internal int pxRes5000km; // 5000km |
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| 94 | |||
| 95 | /// <summary> |
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| 96 | /// is user dragging map |
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| 97 | /// </summary> |
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| 98 | public bool IsDragging = false; |
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| 99 | |||
| 100 | public Core() |
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| 101 | { |
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| 102 | Provider = EmptyProvider.Instance; |
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| 103 | } |
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| 104 | |||
| 105 | /// <summary> |
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| 106 | /// map zoom |
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| 107 | /// </summary> |
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| 108 | public int Zoom |
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| 109 | { |
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| 110 | get |
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| 111 | { |
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| 112 | return zoom; |
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| 113 | } |
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| 114 | set |
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| 115 | { |
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| 116 | if (zoom != value && !IsDragging) |
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| 117 | { |
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| 118 | zoom = value; |
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| 119 | |||
| 120 | minOfTiles = Provider.Projection.GetTileMatrixMinXY(value); |
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| 121 | maxOfTiles = Provider.Projection.GetTileMatrixMaxXY(value); |
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| 122 | |||
| 123 | positionPixel = Provider.Projection.FromLatLngToPixel(Position, value); |
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| 124 | |||
| 125 | if (IsStarted) |
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| 126 | { |
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| 127 | CancelAsyncTasks(); |
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| 128 | |||
| 129 | Matrix.ClearLevelsBelove(zoom - LevelsKeepInMemmory); |
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| 130 | Matrix.ClearLevelsAbove(zoom + LevelsKeepInMemmory); |
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| 131 | |||
| 132 | lock (FailedLoads) |
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| 133 | { |
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| 134 | FailedLoads.Clear(); |
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| 135 | RaiseEmptyTileError = true; |
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| 136 | } |
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| 137 | |||
| 138 | GoToCurrentPositionOnZoom(); |
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| 139 | UpdateBounds(); |
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| 140 | |||
| 141 | if (OnMapZoomChanged != null) |
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| 142 | { |
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| 143 | OnMapZoomChanged(); |
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| 144 | } |
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| 145 | } |
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| 146 | } |
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| 147 | } |
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| 148 | } |
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| 149 | |||
| 150 | /// <summary> |
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| 151 | /// current marker position in pixel coordinates |
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| 152 | /// </summary> |
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| 153 | public GPoint PositionPixel |
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| 154 | { |
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| 155 | get |
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| 156 | { |
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| 157 | return positionPixel; |
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| 158 | } |
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| 159 | } |
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| 160 | |||
| 161 | /// <summary> |
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| 162 | /// current marker position |
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| 163 | /// </summary> |
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| 164 | public PointLatLng Position |
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| 165 | { |
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| 166 | get |
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| 167 | { |
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| 168 | |||
| 169 | return position; |
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| 170 | } |
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| 171 | set |
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| 172 | { |
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| 173 | position = value; |
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| 174 | positionPixel = Provider.Projection.FromLatLngToPixel(value, Zoom); |
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| 175 | |||
| 176 | if (IsStarted) |
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| 177 | { |
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| 178 | if (!IsDragging) |
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| 179 | { |
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| 180 | GoToCurrentPosition(); |
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| 181 | } |
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| 182 | |||
| 183 | if (OnCurrentPositionChanged != null) |
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| 184 | OnCurrentPositionChanged(position); |
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| 185 | } |
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| 186 | } |
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| 187 | } |
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| 188 | |||
| 189 | public GMapProvider provider; |
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| 190 | public GMapProvider Provider |
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| 191 | { |
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| 192 | get |
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| 193 | { |
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| 194 | return provider; |
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| 195 | } |
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| 196 | set |
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| 197 | { |
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| 198 | if (provider == null || !provider.Equals(value)) |
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| 199 | { |
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| 200 | bool diffProjection = (provider == null || provider.Projection != value.Projection); |
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| 201 | |||
| 202 | provider = value; |
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| 203 | |||
| 204 | if (!provider.IsInitialized) |
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| 205 | { |
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| 206 | provider.IsInitialized = true; |
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| 207 | provider.OnInitialized(); |
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| 208 | } |
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| 209 | |||
| 210 | if (provider.Projection != null && diffProjection) |
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| 211 | { |
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| 212 | tileRect = new GRect(GPoint.Empty, Provider.Projection.TileSize); |
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| 213 | tileRectBearing = tileRect; |
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| 214 | if (IsRotated) |
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| 215 | { |
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| 216 | tileRectBearing.Inflate(1, 1); |
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| 217 | } |
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| 218 | |||
| 219 | minOfTiles = Provider.Projection.GetTileMatrixMinXY(Zoom); |
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| 220 | maxOfTiles = Provider.Projection.GetTileMatrixMaxXY(Zoom); |
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| 221 | positionPixel = Provider.Projection.FromLatLngToPixel(Position, Zoom); |
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| 222 | } |
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| 223 | |||
| 224 | if (IsStarted) |
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| 225 | { |
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| 226 | CancelAsyncTasks(); |
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| 227 | if (diffProjection) |
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| 228 | { |
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| 229 | OnMapSizeChanged(Width, Height); |
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| 230 | } |
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| 231 | ReloadMap(); |
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| 232 | |||
| 233 | if (minZoom < provider.MinZoom) |
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| 234 | { |
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| 235 | minZoom = provider.MinZoom; |
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| 236 | } |
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| 237 | |||
| 238 | //if(provider.MaxZoom.HasValue && maxZoom > provider.MaxZoom) |
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| 239 | //{ |
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| 240 | // maxZoom = provider.MaxZoom.Value; |
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| 241 | //} |
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| 242 | |||
| 243 | zoomToArea = true; |
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| 244 | |||
| 245 | if (provider.Area.HasValue && !provider.Area.Value.Contains(Position)) |
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| 246 | { |
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| 247 | SetZoomToFitRect(provider.Area.Value); |
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| 248 | zoomToArea = false; |
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| 249 | } |
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| 250 | |||
| 251 | if (OnMapTypeChanged != null) |
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| 252 | { |
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| 253 | OnMapTypeChanged(value); |
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| 254 | } |
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| 255 | } |
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| 256 | } |
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| 257 | } |
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| 258 | } |
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| 259 | |||
| 260 | internal bool zoomToArea = true; |
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| 261 | |||
| 262 | /// <summary> |
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| 263 | /// sets zoom to max to fit rect |
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| 264 | /// </summary> |
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| 265 | /// <param name="rect"></param> |
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| 266 | /// <returns></returns> |
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| 267 | public bool SetZoomToFitRect(RectLatLng rect) |
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| 268 | { |
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| 269 | int mmaxZoom = GetMaxZoomToFitRect(rect); |
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| 270 | if (mmaxZoom > 0) |
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| 271 | { |
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| 272 | PointLatLng center = new PointLatLng(rect.Lat - (rect.HeightLat / 2), rect.Lng + (rect.WidthLng / 2)); |
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| 273 | Position = center; |
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| 274 | |||
| 275 | if (mmaxZoom > maxZoom) |
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| 276 | { |
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| 277 | mmaxZoom = maxZoom; |
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| 278 | } |
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| 279 | |||
| 280 | if (Zoom != mmaxZoom) |
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| 281 | { |
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| 282 | Zoom = (int)mmaxZoom; |
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| 283 | } |
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| 284 | |||
| 285 | return true; |
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| 286 | } |
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| 287 | return false; |
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| 288 | } |
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| 289 | |||
| 290 | /// <summary> |
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| 291 | /// is polygons enabled |
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| 292 | /// </summary> |
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| 293 | public bool PolygonsEnabled = true; |
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| 294 | |||
| 295 | /// <summary> |
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| 296 | /// is routes enabled |
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| 297 | /// </summary> |
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| 298 | public bool RoutesEnabled = true; |
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| 299 | |||
| 300 | /// <summary> |
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| 301 | /// is markers enabled |
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| 302 | /// </summary> |
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| 303 | public bool MarkersEnabled = true; |
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| 304 | |||
| 305 | /// <summary> |
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| 306 | /// can user drag map |
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| 307 | /// </summary> |
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| 308 | public bool CanDragMap = true; |
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| 309 | |||
| 310 | /// <summary> |
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| 311 | /// retry count to get tile |
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| 312 | /// </summary> |
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| 313 | #if !PocketPC |
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| 314 | public int RetryLoadTile = 0; |
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| 315 | #else |
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| 316 | public int RetryLoadTile = 1; |
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| 317 | #endif |
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| 318 | |||
| 319 | /// <summary> |
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| 320 | /// how many levels of tiles are staying decompresed in memory |
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| 321 | /// </summary> |
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| 322 | #if !PocketPC |
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| 323 | public int LevelsKeepInMemmory = 5; |
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| 324 | #else |
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| 325 | public int LevelsKeepInMemmory = 1; |
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| 326 | #endif |
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| 327 | |||
| 328 | /// <summary> |
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| 329 | /// map render mode |
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| 330 | /// </summary> |
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| 331 | public RenderMode RenderMode = RenderMode.GDI_PLUS; |
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| 332 | |||
| 333 | /// <summary> |
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| 334 | /// occurs when current position is changed |
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| 335 | /// </summary> |
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| 336 | public event PositionChanged OnCurrentPositionChanged; |
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| 337 | |||
| 338 | /// <summary> |
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| 339 | /// occurs when tile set load is complete |
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| 340 | /// </summary> |
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| 341 | public event TileLoadComplete OnTileLoadComplete; |
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| 342 | |||
| 343 | /// <summary> |
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| 344 | /// occurs when tile set is starting to load |
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| 345 | /// </summary> |
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| 346 | public event TileLoadStart OnTileLoadStart; |
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| 347 | |||
| 348 | /// <summary> |
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| 349 | /// occurs on empty tile displayed |
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| 350 | /// </summary> |
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| 351 | public event EmptyTileError OnEmptyTileError; |
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| 352 | |||
| 353 | /// <summary> |
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| 354 | /// occurs on map drag |
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| 355 | /// </summary> |
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| 356 | public event MapDrag OnMapDrag; |
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| 357 | |||
| 358 | /// <summary> |
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| 359 | /// occurs on map zoom changed |
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| 360 | /// </summary> |
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| 361 | public event MapZoomChanged OnMapZoomChanged; |
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| 362 | |||
| 363 | /// <summary> |
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| 364 | /// occurs on map type changed |
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| 365 | /// </summary> |
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| 366 | public event MapTypeChanged OnMapTypeChanged; |
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| 367 | |||
| 368 | readonly List<Thread> GThreadPool = new List<Thread>(); |
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| 369 | // ^ |
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| 370 | // should be only one pool for multiply controls, any ideas how to fix? |
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| 371 | //static readonly List<Thread> GThreadPool = new List<Thread>(); |
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| 372 | |||
| 373 | // windows forms or wpf |
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| 374 | internal string SystemType; |
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| 375 | |||
| 376 | internal static int instances = 0; |
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| 377 | |||
| 378 | BackgroundWorker invalidator; |
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| 379 | |||
| 380 | public BackgroundWorker OnMapOpen() |
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| 381 | { |
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| 382 | if (!IsStarted) |
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| 383 | { |
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| 384 | int x = Interlocked.Increment(ref instances); |
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| 385 | Debug.WriteLine("OnMapOpen: " + x); |
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| 386 | |||
| 387 | IsStarted = true; |
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| 388 | |||
| 389 | if (x == 1) |
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| 390 | { |
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| 391 | GMaps.Instance.noMapInstances = false; |
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| 392 | } |
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| 393 | |||
| 394 | GoToCurrentPosition(); |
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| 395 | |||
| 396 | invalidator = new BackgroundWorker(); |
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| 397 | invalidator.WorkerSupportsCancellation = true; |
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| 398 | invalidator.WorkerReportsProgress = true; |
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| 399 | invalidator.DoWork += new DoWorkEventHandler(invalidatorWatch); |
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| 400 | invalidator.RunWorkerAsync(); |
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| 401 | |||
| 402 | //if(x == 1) |
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| 403 | //{ |
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| 404 | // first control shown |
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| 405 | //} |
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| 406 | } |
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| 407 | return invalidator; |
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| 408 | } |
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| 409 | |||
| 410 | public void OnMapClose() |
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| 411 | { |
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| 412 | Dispose(); |
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| 413 | } |
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| 414 | |||
| 415 | internal readonly object invalidationLock = new object(); |
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| 416 | internal DateTime lastInvalidation = DateTime.Now; |
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| 417 | |||
| 418 | void invalidatorWatch(object sender, DoWorkEventArgs e) |
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| 419 | { |
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| 420 | var w = sender as BackgroundWorker; |
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| 421 | |||
| 422 | TimeSpan span = TimeSpan.FromMilliseconds(111); |
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| 423 | int spanMs = (int)span.TotalMilliseconds; |
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| 424 | bool skiped = false; |
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| 425 | TimeSpan delta; |
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| 426 | DateTime now = DateTime.Now; |
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| 427 | |||
| 428 | while (Refresh != null && (!skiped && Refresh.WaitOne() || (Refresh.WaitOne(spanMs, false) || true))) |
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| 429 | { |
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| 430 | if (w.CancellationPending) |
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| 431 | break; |
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| 432 | |||
| 433 | now = DateTime.Now; |
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| 434 | lock (invalidationLock) |
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| 435 | { |
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| 436 | delta = now - lastInvalidation; |
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| 437 | } |
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| 438 | |||
| 439 | if (delta > span) |
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| 440 | { |
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| 441 | lock (invalidationLock) |
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| 442 | { |
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| 443 | lastInvalidation = now; |
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| 444 | } |
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| 445 | skiped = false; |
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| 446 | |||
| 447 | w.ReportProgress(1); |
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| 448 | Debug.WriteLine("Invalidate delta: " + (int)delta.TotalMilliseconds + "ms"); |
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| 449 | } |
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| 450 | else |
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| 451 | { |
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| 452 | skiped = true; |
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| 453 | } |
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| 454 | } |
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| 455 | } |
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| 456 | |||
| 457 | public void UpdateCenterTileXYLocation() |
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| 458 | { |
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| 459 | PointLatLng center = FromLocalToLatLng(Width / 2, Height / 2); |
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| 460 | GPoint centerPixel = Provider.Projection.FromLatLngToPixel(center, Zoom); |
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| 461 | centerTileXYLocation = Provider.Projection.FromPixelToTileXY(centerPixel); |
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| 462 | } |
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| 463 | |||
| 464 | public int vWidth = 800; |
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| 465 | public int vHeight = 400; |
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| 466 | |||
| 467 | public void OnMapSizeChanged(int width, int height) |
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| 468 | { |
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| 469 | this.Width = width; |
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| 470 | this.Height = height; |
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| 471 | |||
| 472 | if (IsRotated) |
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| 473 | { |
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| 474 | #if !PocketPC |
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| 475 | int diag = (int)Math.Round(Math.Sqrt(Width * Width + Height * Height) / Provider.Projection.TileSize.Width, MidpointRounding.AwayFromZero); |
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| 476 | #else |
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| 477 | int diag = (int) Math.Round(Math.Sqrt(Width * Width + Height * Height) / Provider.Projection.TileSize.Width); |
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| 478 | #endif |
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| 479 | sizeOfMapArea.Width = 1 + (diag / 2); |
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| 480 | sizeOfMapArea.Height = 1 + (diag / 2); |
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| 481 | } |
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| 482 | else |
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| 483 | { |
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| 484 | sizeOfMapArea.Width = 1 + (Width / Provider.Projection.TileSize.Width) / 2; |
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| 485 | sizeOfMapArea.Height = 1 + (Height / Provider.Projection.TileSize.Height) / 2; |
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| 486 | } |
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| 487 | |||
| 488 | Debug.WriteLine("OnMapSizeChanged, w: " + width + ", h: " + height + ", size: " + sizeOfMapArea); |
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| 489 | |||
| 490 | if (IsStarted) |
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| 491 | { |
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| 492 | UpdateBounds(); |
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| 493 | GoToCurrentPosition(); |
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| 494 | } |
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| 495 | } |
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| 496 | |||
| 497 | /// <summary> |
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| 498 | /// gets current map view top/left coordinate, width in Lng, height in Lat |
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| 499 | /// </summary> |
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| 500 | /// <returns></returns> |
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| 501 | public RectLatLng ViewArea |
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| 502 | { |
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| 503 | get |
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| 504 | { |
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| 505 | if (Provider.Projection != null) |
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| 506 | { |
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| 507 | var p = FromLocalToLatLng(0, 0); |
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| 508 | var p2 = FromLocalToLatLng(Width, Height); |
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| 509 | |||
| 510 | return RectLatLng.FromLTRB(p.Lng, p.Lat, p2.Lng, p2.Lat); |
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| 511 | } |
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| 512 | return RectLatLng.Empty; |
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| 513 | } |
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| 514 | } |
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| 515 | |||
| 516 | /// <summary> |
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| 517 | /// gets lat/lng from local control coordinates |
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| 518 | /// </summary> |
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| 519 | /// <param name="x"></param> |
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| 520 | /// <param name="y"></param> |
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| 521 | /// <returns></returns> |
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| 522 | public PointLatLng FromLocalToLatLng(long x, long y) |
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| 523 | { |
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| 524 | GPoint p = new GPoint(x, y); |
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| 525 | p.OffsetNegative(renderOffset); |
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| 526 | p.Offset(compensationOffset); |
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| 527 | |||
| 528 | return Provider.Projection.FromPixelToLatLng(p, Zoom); |
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| 529 | } |
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| 530 | |||
| 531 | /// <summary> |
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| 532 | /// return local coordinates from lat/lng |
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| 533 | /// </summary> |
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| 534 | /// <param name="latlng"></param> |
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| 535 | /// <returns></returns> |
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| 536 | public GPoint FromLatLngToLocal(PointLatLng latlng) |
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| 537 | { |
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| 538 | GPoint pLocal = Provider.Projection.FromLatLngToPixel(latlng, Zoom); |
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| 539 | pLocal.Offset(renderOffset); |
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| 540 | pLocal.OffsetNegative(compensationOffset); |
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| 541 | return pLocal; |
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| 542 | } |
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| 543 | |||
| 544 | /// <summary> |
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| 545 | /// gets max zoom level to fit rectangle |
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| 546 | /// </summary> |
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| 547 | /// <param name="rect"></param> |
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| 548 | /// <returns></returns> |
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| 549 | public int GetMaxZoomToFitRect(RectLatLng rect) |
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| 550 | { |
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| 551 | int zoom = minZoom; |
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| 552 | |||
| 553 | if (rect.HeightLat == 0 || rect.WidthLng == 0) |
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| 554 | { |
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| 555 | zoom = maxZoom / 2; |
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| 556 | } |
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| 557 | else |
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| 558 | { |
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| 559 | for (int i = (int)zoom; i <= maxZoom; i++) |
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| 560 | { |
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| 561 | GPoint p1 = Provider.Projection.FromLatLngToPixel(rect.LocationTopLeft, i); |
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| 562 | GPoint p2 = Provider.Projection.FromLatLngToPixel(rect.LocationRightBottom, i); |
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| 563 | |||
| 564 | if (((p2.X - p1.X) <= Width + 10) && (p2.Y - p1.Y) <= Height + 10) |
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| 565 | { |
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| 566 | zoom = i; |
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| 567 | } |
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| 568 | else |
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| 569 | { |
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| 570 | break; |
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| 571 | } |
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| 572 | } |
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| 573 | } |
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| 574 | |||
| 575 | return zoom; |
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| 576 | } |
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| 577 | |||
| 578 | /// <summary> |
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| 579 | /// initiates map dragging |
||
| 580 | /// </summary> |
||
| 581 | /// <param name="pt"></param> |
||
| 582 | public void BeginDrag(GPoint pt) |
||
| 583 | { |
||
| 584 | dragPoint.X = pt.X - renderOffset.X; |
||
| 585 | dragPoint.Y = pt.Y - renderOffset.Y; |
||
| 586 | IsDragging = true; |
||
| 587 | } |
||
| 588 | |||
| 589 | /// <summary> |
||
| 590 | /// ends map dragging |
||
| 591 | /// </summary> |
||
| 592 | public void EndDrag() |
||
| 593 | { |
||
| 594 | IsDragging = false; |
||
| 595 | mouseDown = GPoint.Empty; |
||
| 596 | |||
| 597 | Refresh.Set(); |
||
| 598 | } |
||
| 599 | |||
| 600 | /// <summary> |
||
| 601 | /// reloads map |
||
| 602 | /// </summary> |
||
| 603 | public void ReloadMap() |
||
| 604 | { |
||
| 605 | if (IsStarted) |
||
| 606 | { |
||
| 607 | Debug.WriteLine("------------------"); |
||
| 608 | |||
| 609 | okZoom = 0; |
||
| 610 | skipOverZoom = 0; |
||
| 611 | |||
| 612 | CancelAsyncTasks(); |
||
| 613 | |||
| 614 | Matrix.ClearAllLevels(); |
||
| 615 | |||
| 616 | lock (FailedLoads) |
||
| 617 | { |
||
| 618 | FailedLoads.Clear(); |
||
| 619 | RaiseEmptyTileError = true; |
||
| 620 | } |
||
| 621 | |||
| 622 | Refresh.Set(); |
||
| 623 | |||
| 624 | UpdateBounds(); |
||
| 625 | } |
||
| 626 | else |
||
| 627 | { |
||
| 628 | throw new Exception("Please, do not call ReloadMap before form is loaded, it's useless"); |
||
| 629 | } |
||
| 630 | } |
||
| 631 | |||
| 632 | /// <summary> |
||
| 633 | /// moves current position into map center |
||
| 634 | /// </summary> |
||
| 635 | public void GoToCurrentPosition() |
||
| 636 | { |
||
| 637 | compensationOffset = positionPixel; // TODO: fix |
||
| 638 | |||
| 639 | // reset stuff |
||
| 640 | renderOffset = GPoint.Empty; |
||
| 641 | dragPoint = GPoint.Empty; |
||
| 642 | |||
| 643 | //var dd = new GPoint(-(CurrentPositionGPixel.X - Width / 2), -(CurrentPositionGPixel.Y - Height / 2)); |
||
| 644 | //dd.Offset(compensationOffset); |
||
| 645 | |||
| 646 | var d = new GPoint(Width / 2, Height / 2); |
||
| 647 | |||
| 648 | this.Drag(d); |
||
| 649 | } |
||
| 650 | |||
| 651 | public bool MouseWheelZooming = false; |
||
| 652 | |||
| 653 | /// <summary> |
||
| 654 | /// moves current position into map center |
||
| 655 | /// </summary> |
||
| 656 | internal void GoToCurrentPositionOnZoom() |
||
| 657 | { |
||
| 658 | compensationOffset = positionPixel; // TODO: fix |
||
| 659 | |||
| 660 | // reset stuff |
||
| 661 | renderOffset = GPoint.Empty; |
||
| 662 | dragPoint = GPoint.Empty; |
||
| 663 | |||
| 664 | // goto location and centering |
||
| 665 | if (MouseWheelZooming) |
||
| 666 | { |
||
| 667 | if (MouseWheelZoomType != MouseWheelZoomType.MousePositionWithoutCenter) |
||
| 668 | { |
||
| 669 | GPoint pt = new GPoint(-(positionPixel.X - Width / 2), -(positionPixel.Y - Height / 2)); |
||
| 670 | pt.Offset(compensationOffset); |
||
| 671 | renderOffset.X = pt.X - dragPoint.X; |
||
| 672 | renderOffset.Y = pt.Y - dragPoint.Y; |
||
| 673 | } |
||
| 674 | else // without centering |
||
| 675 | { |
||
| 676 | renderOffset.X = -positionPixel.X - dragPoint.X; |
||
| 677 | renderOffset.Y = -positionPixel.Y - dragPoint.Y; |
||
| 678 | renderOffset.Offset(mouseLastZoom); |
||
| 679 | renderOffset.Offset(compensationOffset); |
||
| 680 | } |
||
| 681 | } |
||
| 682 | else // use current map center |
||
| 683 | { |
||
| 684 | mouseLastZoom = GPoint.Empty; |
||
| 685 | |||
| 686 | GPoint pt = new GPoint(-(positionPixel.X - Width / 2), -(positionPixel.Y - Height / 2)); |
||
| 687 | pt.Offset(compensationOffset); |
||
| 688 | renderOffset.X = pt.X - dragPoint.X; |
||
| 689 | renderOffset.Y = pt.Y - dragPoint.Y; |
||
| 690 | } |
||
| 691 | |||
| 692 | UpdateCenterTileXYLocation(); |
||
| 693 | } |
||
| 694 | |||
| 695 | /// <summary> |
||
| 696 | /// darg map by offset in pixels |
||
| 697 | /// </summary> |
||
| 698 | /// <param name="offset"></param> |
||
| 699 | public void DragOffset(GPoint offset) |
||
| 700 | { |
||
| 701 | renderOffset.Offset(offset); |
||
| 702 | |||
| 703 | UpdateCenterTileXYLocation(); |
||
| 704 | |||
| 705 | if (centerTileXYLocation != centerTileXYLocationLast) |
||
| 706 | { |
||
| 707 | centerTileXYLocationLast = centerTileXYLocation; |
||
| 708 | UpdateBounds(); |
||
| 709 | } |
||
| 710 | |||
| 711 | { |
||
| 712 | LastLocationInBounds = Position; |
||
| 713 | |||
| 714 | IsDragging = true; |
||
| 715 | Position = FromLocalToLatLng((int)Width / 2, (int)Height / 2); |
||
| 716 | IsDragging = false; |
||
| 717 | } |
||
| 718 | |||
| 719 | if (OnMapDrag != null) |
||
| 720 | { |
||
| 721 | OnMapDrag(); |
||
| 722 | } |
||
| 723 | } |
||
| 724 | |||
| 725 | /// <summary> |
||
| 726 | /// drag map |
||
| 727 | /// </summary> |
||
| 728 | /// <param name="pt"></param> |
||
| 729 | public void Drag(GPoint pt) |
||
| 730 | { |
||
| 731 | renderOffset.X = pt.X - dragPoint.X; |
||
| 732 | renderOffset.Y = pt.Y - dragPoint.Y; |
||
| 733 | |||
| 734 | UpdateCenterTileXYLocation(); |
||
| 735 | |||
| 736 | if (centerTileXYLocation != centerTileXYLocationLast) |
||
| 737 | { |
||
| 738 | centerTileXYLocationLast = centerTileXYLocation; |
||
| 739 | UpdateBounds(); |
||
| 740 | } |
||
| 741 | |||
| 742 | if (IsDragging) |
||
| 743 | { |
||
| 744 | LastLocationInBounds = Position; |
||
| 745 | Position = FromLocalToLatLng((int)Width / 2, (int)Height / 2); |
||
| 746 | |||
| 747 | if (OnMapDrag != null) |
||
| 748 | { |
||
| 749 | OnMapDrag(); |
||
| 750 | } |
||
| 751 | } |
||
| 752 | } |
||
| 753 | |||
| 754 | /// <summary> |
||
| 755 | /// cancels tile loaders and bounds checker |
||
| 756 | /// </summary> |
||
| 757 | public void CancelAsyncTasks() |
||
| 758 | { |
||
| 759 | if (IsStarted) |
||
| 760 | { |
||
| 761 | #if NET40 |
||
| 762 | //TODO: clear loading |
||
| 763 | #else |
||
| 764 | Monitor.Enter(tileLoadQueue); |
||
| 765 | try |
||
| 766 | { |
||
| 767 | tileLoadQueue.Clear(); |
||
| 768 | } |
||
| 769 | finally |
||
| 770 | { |
||
| 771 | Monitor.Exit(tileLoadQueue); |
||
| 772 | } |
||
| 773 | #endif |
||
| 774 | } |
||
| 775 | } |
||
| 776 | |||
| 777 | bool RaiseEmptyTileError = false; |
||
| 778 | internal Dictionary<LoadTask, Exception> FailedLoads = new Dictionary<LoadTask, Exception>(new LoadTaskComparer()); |
||
| 779 | |||
| 780 | internal static readonly int WaitForTileLoadThreadTimeout = 5 * 1000 * 60; // 5 min. |
||
| 781 | |||
| 782 | volatile int okZoom = 0; |
||
| 783 | volatile int skipOverZoom = 0; |
||
| 784 | |||
| 785 | #if NET40 |
||
| 786 | static readonly BlockingCollection<LoadTask> tileLoadQueue4 = new BlockingCollection<LoadTask>(new ConcurrentStack<LoadTask>()); |
||
| 787 | static List<Task> tileLoadQueue4Tasks; |
||
| 788 | static int loadWaitCount = 0; |
||
| 789 | void AddLoadTask(LoadTask t) |
||
| 790 | { |
||
| 791 | if (tileLoadQueue4Tasks == null) |
||
| 792 | { |
||
| 793 | lock (tileLoadQueue4) |
||
| 794 | { |
||
| 795 | if (tileLoadQueue4Tasks == null) |
||
| 796 | { |
||
| 797 | tileLoadQueue4Tasks = new List<Task>(); |
||
| 798 | |||
| 799 | while (tileLoadQueue4Tasks.Count < GThreadPoolSize) |
||
| 800 | { |
||
| 801 | Debug.WriteLine("creating ProcessLoadTask: " + tileLoadQueue4Tasks.Count); |
||
| 802 | |||
| 803 | tileLoadQueue4Tasks.Add(Task.Factory.StartNew(delegate () |
||
| 804 | { |
||
| 805 | string ctid = "ProcessLoadTask[" + Thread.CurrentThread.ManagedThreadId + "]"; |
||
| 806 | Thread.CurrentThread.Name = ctid; |
||
| 807 | |||
| 808 | Debug.WriteLine(ctid + ": started"); |
||
| 809 | do |
||
| 810 | { |
||
| 811 | if (tileLoadQueue4.Count == 0) |
||
| 812 | { |
||
| 813 | Debug.WriteLine(ctid + ": ready"); |
||
| 814 | |||
| 815 | if (Interlocked.Increment(ref loadWaitCount) >= GThreadPoolSize) |
||
| 816 | { |
||
| 817 | Interlocked.Exchange(ref loadWaitCount, 0); |
||
| 818 | OnLoadComplete(ctid); |
||
| 819 | } |
||
| 820 | } |
||
| 821 | ProcessLoadTask(tileLoadQueue4.Take(), ctid); |
||
| 822 | } |
||
| 823 | while (!tileLoadQueue4.IsAddingCompleted); |
||
| 824 | |||
| 825 | Debug.WriteLine(ctid + ": exit"); |
||
| 826 | |||
| 827 | }, TaskCreationOptions.LongRunning)); |
||
| 828 | } |
||
| 829 | } |
||
| 830 | } |
||
| 831 | } |
||
| 832 | tileLoadQueue4.Add(t); |
||
| 833 | } |
||
| 834 | #else |
||
| 835 | byte loadWaitCount = 0; |
||
| 836 | |||
| 837 | void tileLoadThread() |
||
| 838 | { |
||
| 839 | LoadTask? task = null; |
||
| 840 | bool stop = false; |
||
| 841 | |||
| 842 | #if !PocketPC |
||
| 843 | Thread ct = Thread.CurrentThread; |
||
| 844 | string ctid = "Thread[" + ct.ManagedThreadId + "]"; |
||
| 845 | #else |
||
| 846 | int ctid = 0; |
||
| 847 | #endif |
||
| 848 | while (!stop && IsStarted) |
||
| 849 | { |
||
| 850 | task = null; |
||
| 851 | |||
| 852 | Monitor.Enter(tileLoadQueue); |
||
| 853 | try |
||
| 854 | { |
||
| 855 | while (tileLoadQueue.Count == 0) |
||
| 856 | { |
||
| 857 | Debug.WriteLine(ctid + " - Wait " + loadWaitCount + " - " + DateTime.Now.TimeOfDay); |
||
| 858 | |||
| 859 | if (++loadWaitCount >= GThreadPoolSize) |
||
| 860 | { |
||
| 861 | loadWaitCount = 0; |
||
| 862 | OnLoadComplete(ctid); |
||
| 863 | } |
||
| 864 | |||
| 865 | if (!IsStarted || false == Monitor.Wait(tileLoadQueue, WaitForTileLoadThreadTimeout, false) || !IsStarted) |
||
| 866 | { |
||
| 867 | stop = true; |
||
| 868 | break; |
||
| 869 | } |
||
| 870 | } |
||
| 871 | |||
| 872 | if (IsStarted && !stop || tileLoadQueue.Count > 0) |
||
| 873 | { |
||
| 874 | task = tileLoadQueue.Pop(); |
||
| 875 | } |
||
| 876 | } |
||
| 877 | finally |
||
| 878 | { |
||
| 879 | Monitor.Exit(tileLoadQueue); |
||
| 880 | } |
||
| 881 | |||
| 882 | if (task.HasValue && IsStarted) |
||
| 883 | { |
||
| 884 | ProcessLoadTask(task.Value, ctid); |
||
| 885 | } |
||
| 886 | } |
||
| 887 | |||
| 888 | #if !PocketPC |
||
| 889 | Monitor.Enter(tileLoadQueue); |
||
| 890 | try |
||
| 891 | { |
||
| 892 | Debug.WriteLine("Quit - " + ct.Name); |
||
| 893 | lock (GThreadPool) |
||
| 894 | { |
||
| 895 | GThreadPool.Remove(ct); |
||
| 896 | } |
||
| 897 | } |
||
| 898 | finally |
||
| 899 | { |
||
| 900 | Monitor.Exit(tileLoadQueue); |
||
| 901 | } |
||
| 902 | #endif |
||
| 903 | } |
||
| 904 | #endif |
||
| 905 | |||
| 906 | static void ProcessLoadTask(LoadTask task, string ctid) |
||
| 907 | { |
||
| 908 | try |
||
| 909 | { |
||
| 910 | #region -- execute -- |
||
| 911 | |||
| 912 | var m = task.Core.Matrix.GetTileWithReadLock(task.Zoom, task.Pos); |
||
| 913 | if (!m.NotEmpty) |
||
| 914 | { |
||
| 915 | Debug.WriteLine(ctid + " - try load: " + task); |
||
| 916 | |||
| 917 | Tile t = new Tile(task.Zoom, task.Pos); |
||
| 918 | |||
| 919 | foreach (var tl in task.Core.provider.Overlays) |
||
| 920 | { |
||
| 921 | int retry = 0; |
||
| 922 | do |
||
| 923 | { |
||
| 924 | PureImage img = null; |
||
| 925 | Exception ex = null; |
||
| 926 | |||
| 927 | if (task.Zoom >= task.Core.provider.MinZoom && (!task.Core.provider.MaxZoom.HasValue || task.Zoom <= task.Core.provider.MaxZoom)) |
||
| 928 | { |
||
| 929 | if (task.Core.skipOverZoom == 0 || task.Zoom <= task.Core.skipOverZoom) |
||
| 930 | { |
||
| 931 | // tile number inversion(BottomLeft -> TopLeft) |
||
| 932 | if (tl.InvertedAxisY) |
||
| 933 | { |
||
| 934 | img = GMaps.Instance.GetImageFrom(tl, new GPoint(task.Pos.X, task.Core.maxOfTiles.Height - task.Pos.Y), task.Zoom, out ex); |
||
| 935 | } |
||
| 936 | else // ok |
||
| 937 | { |
||
| 938 | img = GMaps.Instance.GetImageFrom(tl, task.Pos, task.Zoom, out ex); |
||
| 939 | } |
||
| 940 | } |
||
| 941 | } |
||
| 942 | |||
| 943 | if (img != null && ex == null) |
||
| 944 | { |
||
| 945 | if (task.Core.okZoom < task.Zoom) |
||
| 946 | { |
||
| 947 | task.Core.okZoom = task.Zoom; |
||
| 948 | task.Core.skipOverZoom = 0; |
||
| 949 | Debug.WriteLine("skipOverZoom disabled, okZoom: " + task.Core.okZoom); |
||
| 950 | } |
||
| 951 | } |
||
| 952 | else if (ex != null) |
||
| 953 | { |
||
| 954 | if ((task.Core.skipOverZoom != task.Core.okZoom) && (task.Zoom > task.Core.okZoom)) |
||
| 955 | { |
||
| 956 | if (ex.Message.Contains("(404) Not Found")) |
||
| 957 | { |
||
| 958 | task.Core.skipOverZoom = task.Core.okZoom; |
||
| 959 | Debug.WriteLine("skipOverZoom enabled: " + task.Core.skipOverZoom); |
||
| 960 | } |
||
| 961 | } |
||
| 962 | } |
||
| 963 | |||
| 964 | // check for parent tiles if not found |
||
| 965 | if (img == null && task.Core.okZoom > 0 && task.Core.fillEmptyTiles && task.Core.Provider.Projection is MercatorProjection) |
||
| 966 | { |
||
| 967 | int zoomOffset = task.Zoom > task.Core.okZoom ? task.Zoom - task.Core.okZoom : 1; |
||
| 968 | long Ix = 0; |
||
| 969 | GPoint parentTile = GPoint.Empty; |
||
| 970 | |||
| 971 | while (img == null && zoomOffset < task.Zoom) |
||
| 972 | { |
||
| 973 | Ix = (long)Math.Pow(2, zoomOffset); |
||
| 974 | parentTile = new GMap.NET.GPoint((task.Pos.X / Ix), (task.Pos.Y / Ix)); |
||
| 975 | img = GMaps.Instance.GetImageFrom(tl, parentTile, task.Zoom - zoomOffset++, out ex); |
||
| 976 | } |
||
| 977 | |||
| 978 | if (img != null) |
||
| 979 | { |
||
| 980 | // offsets in quadrant |
||
| 981 | long Xoff = Math.Abs(task.Pos.X - (parentTile.X * Ix)); |
||
| 982 | long Yoff = Math.Abs(task.Pos.Y - (parentTile.Y * Ix)); |
||
| 983 | |||
| 984 | img.IsParent = true; |
||
| 985 | img.Ix = Ix; |
||
| 986 | img.Xoff = Xoff; |
||
| 987 | img.Yoff = Yoff; |
||
| 988 | |||
| 989 | // wpf |
||
| 990 | //var geometry = new RectangleGeometry(new Rect(Core.tileRect.X + 0.6, Core.tileRect.Y + 0.6, Core.tileRect.Width + 0.6, Core.tileRect.Height + 0.6)); |
||
| 991 | //var parentImgRect = new Rect(Core.tileRect.X - Core.tileRect.Width * Xoff + 0.6, Core.tileRect.Y - Core.tileRect.Height * Yoff + 0.6, Core.tileRect.Width * Ix + 0.6, Core.tileRect.Height * Ix + 0.6); |
||
| 992 | |||
| 993 | // gdi+ |
||
| 994 | //System.Drawing.Rectangle dst = new System.Drawing.Rectangle((int)Core.tileRect.X, (int)Core.tileRect.Y, (int)Core.tileRect.Width, (int)Core.tileRect.Height); |
||
| 995 | //System.Drawing.RectangleF srcRect = new System.Drawing.RectangleF((float)(Xoff * (img.Img.Width / Ix)), (float)(Yoff * (img.Img.Height / Ix)), (img.Img.Width / Ix), (img.Img.Height / Ix)); |
||
| 996 | } |
||
| 997 | } |
||
| 998 | |||
| 999 | if (img != null) |
||
| 1000 | { |
||
| 1001 | Debug.WriteLine(ctid + " - tile loaded: " + img.Data.Length / 1024 + "KB, " + task); |
||
| 1002 | { |
||
| 1003 | t.AddOverlay(img); |
||
| 1004 | } |
||
| 1005 | break; |
||
| 1006 | } |
||
| 1007 | else |
||
| 1008 | { |
||
| 1009 | if (ex != null) |
||
| 1010 | { |
||
| 1011 | lock (task.Core.FailedLoads) |
||
| 1012 | { |
||
| 1013 | if (!task.Core.FailedLoads.ContainsKey(task)) |
||
| 1014 | { |
||
| 1015 | task.Core.FailedLoads.Add(task, ex); |
||
| 1016 | |||
| 1017 | if (task.Core.OnEmptyTileError != null) |
||
| 1018 | { |
||
| 1019 | if (!task.Core.RaiseEmptyTileError) |
||
| 1020 | { |
||
| 1021 | task.Core.RaiseEmptyTileError = true; |
||
| 1022 | task.Core.OnEmptyTileError(task.Zoom, task.Pos); |
||
| 1023 | } |
||
| 1024 | } |
||
| 1025 | } |
||
| 1026 | } |
||
| 1027 | } |
||
| 1028 | |||
| 1029 | if (task.Core.RetryLoadTile > 0) |
||
| 1030 | { |
||
| 1031 | Debug.WriteLine(ctid + " - ProcessLoadTask: " + task + " -> empty tile, retry " + retry); |
||
| 1032 | { |
||
| 1033 | Thread.Sleep(1111); |
||
| 1034 | } |
||
| 1035 | } |
||
| 1036 | } |
||
| 1037 | } |
||
| 1038 | while (++retry < task.Core.RetryLoadTile); |
||
| 1039 | } |
||
| 1040 | |||
| 1041 | if (t.HasAnyOverlays && task.Core.IsStarted) |
||
| 1042 | { |
||
| 1043 | task.Core.Matrix.SetTile(t); |
||
| 1044 | } |
||
| 1045 | else |
||
| 1046 | { |
||
| 1047 | t.Dispose(); |
||
| 1048 | } |
||
| 1049 | } |
||
| 1050 | |||
| 1051 | #endregion |
||
| 1052 | } |
||
| 1053 | catch (Exception ex) |
||
| 1054 | { |
||
| 1055 | Debug.WriteLine(ctid + " - ProcessLoadTask: " + ex.ToString()); |
||
| 1056 | } |
||
| 1057 | finally |
||
| 1058 | { |
||
| 1059 | if (task.Core.Refresh != null) |
||
| 1060 | { |
||
| 1061 | task.Core.Refresh.Set(); |
||
| 1062 | } |
||
| 1063 | } |
||
| 1064 | } |
||
| 1065 | |||
| 1066 | void OnLoadComplete(string ctid) |
||
| 1067 | { |
||
| 1068 | LastTileLoadEnd = DateTime.Now; |
||
| 1069 | long lastTileLoadTimeMs = (long)(LastTileLoadEnd - LastTileLoadStart).TotalMilliseconds; |
||
| 1070 | |||
| 1071 | #region -- clear stuff-- |
||
| 1072 | if (IsStarted) |
||
| 1073 | { |
||
| 1074 | GMaps.Instance.MemoryCache.RemoveOverload(); |
||
| 1075 | |||
| 1076 | tileDrawingListLock.AcquireReaderLock(); |
||
| 1077 | try |
||
| 1078 | { |
||
| 1079 | Matrix.ClearLevelAndPointsNotIn(Zoom, tileDrawingList); |
||
| 1080 | } |
||
| 1081 | finally |
||
| 1082 | { |
||
| 1083 | tileDrawingListLock.ReleaseReaderLock(); |
||
| 1084 | } |
||
| 1085 | } |
||
| 1086 | #endregion |
||
| 1087 | |||
| 1088 | UpdateGroundResolution(); |
||
| 1089 | #if UseGC |
||
| 1090 | GC.Collect(); |
||
| 1091 | GC.WaitForPendingFinalizers(); |
||
| 1092 | GC.Collect(); |
||
| 1093 | #endif |
||
| 1094 | Debug.WriteLine(ctid + " - OnTileLoadComplete: " + lastTileLoadTimeMs + "ms, MemoryCacheSize: " + GMaps.Instance.MemoryCache.Size + "MB"); |
||
| 1095 | |||
| 1096 | if (OnTileLoadComplete != null) |
||
| 1097 | { |
||
| 1098 | OnTileLoadComplete(lastTileLoadTimeMs); |
||
| 1099 | } |
||
| 1100 | } |
||
| 1101 | |||
| 1102 | public AutoResetEvent Refresh = new AutoResetEvent(false); |
||
| 1103 | |||
| 1104 | public bool updatingBounds = false; |
||
| 1105 | |||
| 1106 | /// <summary> |
||
| 1107 | /// updates map bounds |
||
| 1108 | /// </summary> |
||
| 1109 | void UpdateBounds() |
||
| 1110 | { |
||
| 1111 | if (!IsStarted || Provider.Equals(EmptyProvider.Instance)) |
||
| 1112 | { |
||
| 1113 | return; |
||
| 1114 | } |
||
| 1115 | |||
| 1116 | updatingBounds = true; |
||
| 1117 | |||
| 1118 | tileDrawingListLock.AcquireWriterLock(); |
||
| 1119 | try |
||
| 1120 | { |
||
| 1121 | #region -- find tiles around -- |
||
| 1122 | tileDrawingList.Clear(); |
||
| 1123 | |||
| 1124 | for (long i = (int)Math.Floor(-sizeOfMapArea.Width * scaleX), countI = (int)Math.Ceiling(sizeOfMapArea.Width * scaleX); i <= countI; i++) |
||
| 1125 | { |
||
| 1126 | for (long j = (int)Math.Floor(-sizeOfMapArea.Height * scaleY), countJ = (int)Math.Ceiling(sizeOfMapArea.Height * scaleY); j <= countJ; j++) |
||
| 1127 | { |
||
| 1128 | GPoint p = centerTileXYLocation; |
||
| 1129 | p.X += i; |
||
| 1130 | p.Y += j; |
||
| 1131 | |||
| 1132 | #if ContinuesMap |
||
| 1133 | // ---------------------------- |
||
| 1134 | if(p.X < minOfTiles.Width) |
||
| 1135 | { |
||
| 1136 | p.X += (maxOfTiles.Width + 1); |
||
| 1137 | } |
||
| 1138 | |||
| 1139 | if(p.X > maxOfTiles.Width) |
||
| 1140 | { |
||
| 1141 | p.X -= (maxOfTiles.Width + 1); |
||
| 1142 | } |
||
| 1143 | // ---------------------------- |
||
| 1144 | #endif |
||
| 1145 | |||
| 1146 | if (p.X >= minOfTiles.Width && p.Y >= minOfTiles.Height && p.X <= maxOfTiles.Width && p.Y <= maxOfTiles.Height) |
||
| 1147 | { |
||
| 1148 | DrawTile dt = new DrawTile() |
||
| 1149 | { |
||
| 1150 | PosXY = p, |
||
| 1151 | PosPixel = new GPoint(p.X * tileRect.Width, p.Y * tileRect.Height), |
||
| 1152 | DistanceSqr = (centerTileXYLocation.X - p.X) * (centerTileXYLocation.X - p.X) + (centerTileXYLocation.Y - p.Y) * (centerTileXYLocation.Y - p.Y) |
||
| 1153 | }; |
||
| 1154 | |||
| 1155 | if (!tileDrawingList.Contains(dt)) |
||
| 1156 | { |
||
| 1157 | tileDrawingList.Add(dt); |
||
| 1158 | } |
||
| 1159 | } |
||
| 1160 | } |
||
| 1161 | } |
||
| 1162 | |||
| 1163 | if (GMaps.Instance.ShuffleTilesOnLoad) |
||
| 1164 | { |
||
| 1165 | Stuff.Shuffle<DrawTile>(tileDrawingList); |
||
| 1166 | } |
||
| 1167 | else |
||
| 1168 | { |
||
| 1169 | tileDrawingList.Sort(); |
||
| 1170 | } |
||
| 1171 | #endregion |
||
| 1172 | } |
||
| 1173 | finally |
||
| 1174 | { |
||
| 1175 | tileDrawingListLock.ReleaseWriterLock(); |
||
| 1176 | } |
||
| 1177 | |||
| 1178 | #if NET40 |
||
| 1179 | Interlocked.Exchange(ref loadWaitCount, 0); |
||
| 1180 | #else |
||
| 1181 | Monitor.Enter(tileLoadQueue); |
||
| 1182 | try |
||
| 1183 | { |
||
| 1184 | #endif |
||
| 1185 | tileDrawingListLock.AcquireReaderLock(); |
||
| 1186 | try |
||
| 1187 | { |
||
| 1188 | foreach (DrawTile p in tileDrawingList) |
||
| 1189 | { |
||
| 1190 | LoadTask task = new LoadTask(p.PosXY, Zoom, this); |
||
| 1191 | #if NET40 |
||
| 1192 | AddLoadTask(task); |
||
| 1193 | #else |
||
| 1194 | { |
||
| 1195 | if (!tileLoadQueue.Contains(task)) |
||
| 1196 | { |
||
| 1197 | tileLoadQueue.Push(task); |
||
| 1198 | } |
||
| 1199 | } |
||
| 1200 | #endif |
||
| 1201 | } |
||
| 1202 | } |
||
| 1203 | finally |
||
| 1204 | { |
||
| 1205 | tileDrawingListLock.ReleaseReaderLock(); |
||
| 1206 | } |
||
| 1207 | |||
| 1208 | #if !NET40 |
||
| 1209 | #region -- starts loader threads if needed -- |
||
| 1210 | |||
| 1211 | lock (GThreadPool) |
||
| 1212 | { |
||
| 1213 | while (GThreadPool.Count < GThreadPoolSize) |
||
| 1214 | { |
||
| 1215 | Thread t = new Thread(new ThreadStart(tileLoadThread)); |
||
| 1216 | { |
||
| 1217 | t.Name = "TileLoader: " + GThreadPool.Count; |
||
| 1218 | t.IsBackground = true; |
||
| 1219 | t.Priority = ThreadPriority.BelowNormal; |
||
| 1220 | } |
||
| 1221 | GThreadPool.Add(t); |
||
| 1222 | |||
| 1223 | Debug.WriteLine("add " + t.Name + " to GThreadPool"); |
||
| 1224 | |||
| 1225 | t.Start(); |
||
| 1226 | } |
||
| 1227 | } |
||
| 1228 | #endregion |
||
| 1229 | #endif |
||
| 1230 | { |
||
| 1231 | LastTileLoadStart = DateTime.Now; |
||
| 1232 | Debug.WriteLine("OnTileLoadStart - at zoom " + Zoom + ", time: " + LastTileLoadStart.TimeOfDay); |
||
| 1233 | } |
||
| 1234 | #if !NET40 |
||
| 1235 | loadWaitCount = 0; |
||
| 1236 | Monitor.PulseAll(tileLoadQueue); |
||
| 1237 | } |
||
| 1238 | finally |
||
| 1239 | { |
||
| 1240 | Monitor.Exit(tileLoadQueue); |
||
| 1241 | } |
||
| 1242 | #endif |
||
| 1243 | updatingBounds = false; |
||
| 1244 | |||
| 1245 | if (OnTileLoadStart != null) |
||
| 1246 | { |
||
| 1247 | OnTileLoadStart(); |
||
| 1248 | } |
||
| 1249 | } |
||
| 1250 | |||
| 1251 | /// <summary> |
||
| 1252 | /// updates ground resolution info |
||
| 1253 | /// </summary> |
||
| 1254 | void UpdateGroundResolution() |
||
| 1255 | { |
||
| 1256 | double rez = Provider.Projection.GetGroundResolution(Zoom, Position.Lat); |
||
| 1257 | pxRes100m = (int)(100.0 / rez); // 100 meters |
||
| 1258 | pxRes1000m = (int)(1000.0 / rez); // 1km |
||
| 1259 | pxRes10km = (int)(10000.0 / rez); // 10km |
||
| 1260 | pxRes100km = (int)(100000.0 / rez); // 100km |
||
| 1261 | pxRes1000km = (int)(1000000.0 / rez); // 1000km |
||
| 1262 | pxRes5000km = (int)(5000000.0 / rez); // 5000km |
||
| 1263 | } |
||
| 1264 | |||
| 1265 | #region IDisposable Members |
||
| 1266 | |||
| 1267 | ~Core() |
||
| 1268 | { |
||
| 1269 | Dispose(false); |
||
| 1270 | } |
||
| 1271 | |||
| 1272 | void Dispose(bool disposing) |
||
| 1273 | { |
||
| 1274 | if (IsStarted) |
||
| 1275 | { |
||
| 1276 | if (invalidator != null) |
||
| 1277 | { |
||
| 1278 | invalidator.CancelAsync(); |
||
| 1279 | invalidator.DoWork -= new DoWorkEventHandler(invalidatorWatch); |
||
| 1280 | invalidator.Dispose(); |
||
| 1281 | invalidator = null; |
||
| 1282 | } |
||
| 1283 | |||
| 1284 | if (Refresh != null) |
||
| 1285 | { |
||
| 1286 | Refresh.Set(); |
||
| 1287 | Refresh.Close(); |
||
| 1288 | Refresh = null; |
||
| 1289 | } |
||
| 1290 | |||
| 1291 | int x = Interlocked.Decrement(ref instances); |
||
| 1292 | Debug.WriteLine("OnMapClose: " + x); |
||
| 1293 | |||
| 1294 | CancelAsyncTasks(); |
||
| 1295 | IsStarted = false; |
||
| 1296 | |||
| 1297 | if (Matrix != null) |
||
| 1298 | { |
||
| 1299 | Matrix.Dispose(); |
||
| 1300 | Matrix = null; |
||
| 1301 | } |
||
| 1302 | |||
| 1303 | if (FailedLoads != null) |
||
| 1304 | { |
||
| 1305 | lock (FailedLoads) |
||
| 1306 | { |
||
| 1307 | FailedLoads.Clear(); |
||
| 1308 | RaiseEmptyTileError = false; |
||
| 1309 | } |
||
| 1310 | FailedLoads = null; |
||
| 1311 | } |
||
| 1312 | |||
| 1313 | tileDrawingListLock.AcquireWriterLock(); |
||
| 1314 | try |
||
| 1315 | { |
||
| 1316 | tileDrawingList.Clear(); |
||
| 1317 | } |
||
| 1318 | finally |
||
| 1319 | { |
||
| 1320 | tileDrawingListLock.ReleaseWriterLock(); |
||
| 1321 | } |
||
| 1322 | |||
| 1323 | #if NET40 |
||
| 1324 | //TODO: maybe |
||
| 1325 | #else |
||
| 1326 | // cancel waiting loaders |
||
| 1327 | Monitor.Enter(tileLoadQueue); |
||
| 1328 | try |
||
| 1329 | { |
||
| 1330 | Monitor.PulseAll(tileLoadQueue); |
||
| 1331 | } |
||
| 1332 | finally |
||
| 1333 | { |
||
| 1334 | Monitor.Exit(tileLoadQueue); |
||
| 1335 | } |
||
| 1336 | |||
| 1337 | lock (GThreadPool) |
||
| 1338 | { |
||
| 1339 | #if PocketPC |
||
| 1340 | Debug.WriteLine("waiting until loaders are stopped..."); |
||
| 1341 | while(GThreadPool.Count > 0) |
||
| 1342 | { |
||
| 1343 | var t = GThreadPool[0]; |
||
| 1344 | |||
| 1345 | if (t.State != ThreadState.Stopped) |
||
| 1346 | { |
||
| 1347 | var tr = t.Join(1111); |
||
| 1348 | |||
| 1349 | Debug.WriteLine(t.Name + ", " + t.State); |
||
| 1350 | |||
| 1351 | if (!tr) |
||
| 1352 | { |
||
| 1353 | continue; |
||
| 1354 | } |
||
| 1355 | else |
||
| 1356 | { |
||
| 1357 | GThreadPool.Remove(t); |
||
| 1358 | } |
||
| 1359 | } |
||
| 1360 | else |
||
| 1361 | { |
||
| 1362 | GThreadPool.Remove(t); |
||
| 1363 | } |
||
| 1364 | } |
||
| 1365 | Thread.Sleep(1111); |
||
| 1366 | #endif |
||
| 1367 | } |
||
| 1368 | #endif |
||
| 1369 | |||
| 1370 | if (tileDrawingListLock != null) |
||
| 1371 | { |
||
| 1372 | tileDrawingListLock.Dispose(); |
||
| 1373 | tileDrawingListLock = null; |
||
| 1374 | tileDrawingList = null; |
||
| 1375 | } |
||
| 1376 | |||
| 1377 | if (x == 0) |
||
| 1378 | { |
||
| 1379 | #if DEBUG |
||
| 1380 | GMaps.Instance.CancelTileCaching(); |
||
| 1381 | #endif |
||
| 1382 | GMaps.Instance.noMapInstances = true; |
||
| 1383 | GMaps.Instance.WaitForCache.Set(); |
||
| 1384 | if (disposing) |
||
| 1385 | { |
||
| 1386 | GMaps.Instance.MemoryCache.Clear(); |
||
| 1387 | } |
||
| 1388 | } |
||
| 1389 | } |
||
| 1390 | } |
||
| 1391 | |||
| 1392 | public void Dispose() |
||
| 1393 | { |
||
| 1394 | Dispose(true); |
||
| 1395 | GC.SuppressFinalize(this); |
||
| 1396 | } |
||
| 1397 | |||
| 1398 | #endregion |
||
| 1399 | } |
||
| 1400 | } |