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Rev | Author | Line No. | Line |
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2526 | - | 1 | using System; |
2 | using System.Collections.Generic; |
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3 | using System.Linq; |
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4 | using System.Text; |
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5 | using System.Runtime.InteropServices; |
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6 | using System.ComponentModel.Composition; |
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7 | |||
8 | namespace Touchless.Vision.Camera |
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9 | { |
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10 | public static class CameraService |
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11 | { |
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12 | private static WebCamLib.CameraMethods _cameraMethods; |
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13 | |||
14 | private static WebCamLib.CameraMethods CameraMethods |
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15 | { |
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16 | get |
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17 | { |
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18 | if (_cameraMethods == null) |
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19 | { |
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20 | try |
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21 | { |
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22 | _cameraMethods = new WebCamLib.CameraMethods(); |
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23 | |||
24 | } |
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25 | catch (Exception) |
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26 | { |
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27 | } |
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28 | |||
29 | } |
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30 | |||
31 | return _cameraMethods; |
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32 | } |
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33 | } |
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34 | |||
35 | [Export(ExportInterfaceNames.DefaultCamera)] |
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36 | public static Camera DefaultCamera |
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37 | { |
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38 | get { return AvailableCameras.FirstOrDefault(); } |
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39 | } |
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40 | |||
41 | private static List<Camera> _availableCameras; |
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42 | public static IList<Camera> AvailableCameras |
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43 | { |
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44 | get |
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45 | { |
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46 | try |
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47 | { |
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48 | if (_availableCameras == null && CameraMethods != null) |
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49 | { |
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50 | _availableCameras = BuildCameraList().ToList(); |
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51 | } |
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52 | |||
53 | } |
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54 | catch (Exception) |
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55 | { |
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56 | |||
57 | } |
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58 | |||
59 | |||
60 | return _availableCameras; |
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61 | } |
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62 | } |
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63 | public static void ClearCameraList() |
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64 | { |
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65 | _availableCameras = null; |
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66 | _cameraMethods = null; |
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67 | } |
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68 | |||
69 | private static IEnumerable<Camera> BuildCameraList() |
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70 | { |
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71 | if (CameraMethods != null) |
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72 | { |
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73 | for (int i = 0; i < CameraMethods.Count; i++) |
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74 | { |
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75 | WebCamLib.CameraInfo cameraInfo = CameraMethods.GetCameraInfo(i); |
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76 | yield return new Camera(CameraMethods, cameraInfo.Name, cameraInfo.Index); |
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77 | } |
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78 | } |
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79 | } |
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80 | } |
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81 | } |