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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // surface |
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15 // |
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16 // |
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17 |
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18 /** |
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19 @file |
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20 @publishedPartner |
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21 @released |
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22 */ |
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23 #ifndef __SURFACE_H__ |
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24 #define __SURFACE_H__ |
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25 |
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26 #include <e32def.h> |
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27 |
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28 class TSurfaceId |
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29 { |
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30 public: |
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31 enum |
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32 { |
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33 EInvalidSurface = 0, |
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34 EScreenSurface = 1, |
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35 EStreamHandle = 2, |
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36 EAdaptationSurfaceBase = 33, |
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37 }; |
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38 struct TSurfaceUsage //TSurfaceId::TSurfaceUsage:: |
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39 { |
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40 enum |
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41 { |
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42 //screen usage |
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43 EScreenField=0, |
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44 EHalField=1, |
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45 EHalFlippedFlag=0x80000000, |
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46 ETypeGuidField=2, |
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47 //stream handle usage |
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48 EObjectRefField=0, |
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49 //general class usage |
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50 ETypeClassField=3, |
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51 ETypeClassShift=24 |
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52 }; |
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53 }; |
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54 typedef TSurfaceUsage TScreenSurfaceUsage; //Backward compatibility |
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55 |
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56 |
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57 inline static TSurfaceId CreateNullId(void) |
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58 { |
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59 TSurfaceId id = TSurfaceId(); |
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60 for (TInt i = 0; i < 4; ++i) id.iInternal[i] = 0; |
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61 return id; |
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62 }; |
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63 inline TBool IsNull() const |
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64 { |
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65 return ((iInternal[0] == 0) && |
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66 (iInternal[1] == 0) && |
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67 (iInternal[2] == 0) && |
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68 (iInternal[3] == 0)); |
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69 |
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70 }; |
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71 inline TInt Type() const {return (TInt)(iInternal[3] >> 24);} |
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72 public: |
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73 TUint32 iInternal[4]; |
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74 }; |
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75 |
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76 |
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77 inline bool operator == (const TSurfaceId& lhs, const TSurfaceId& rhs) |
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78 { |
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79 return ((lhs.iInternal[0] == rhs.iInternal[0]) && |
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80 (lhs.iInternal[1] == rhs.iInternal[1]) && |
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81 (lhs.iInternal[2] == rhs.iInternal[2]) && |
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82 (lhs.iInternal[3] == rhs.iInternal[3])); |
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83 } |
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84 |
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85 inline bool operator != (const TSurfaceId& lhs, const TSurfaceId& rhs) |
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86 { |
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87 return !(lhs == rhs); |
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88 } |
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89 |
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90 #endif |
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91 |