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5 <title>TB9.2 Example Applications: examples/Graphics/WS/transparent/eventhandler.cpp Source File</title> |
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11 <h1>examples/Graphics/WS/transparent/eventhandler.cpp</h1><a href="eventhandler_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).</span> |
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12 <a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span> |
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13 <a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span> |
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14 <a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span> |
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15 <a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span> |
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16 <a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span> |
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17 <a name="l00007"></a>00007 <span class="comment">//</span> |
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18 <a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span> |
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19 <a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span> |
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20 <a name="l00010"></a>00010 <span class="comment">//</span> |
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21 <a name="l00011"></a>00011 <span class="comment">// Contributors:</span> |
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22 <a name="l00012"></a>00012 <span class="comment">//</span> |
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23 <a name="l00013"></a>00013 <span class="comment">// Description:</span> |
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24 <a name="l00014"></a>00014 <span class="comment">// This encapsulates both issuing a request for getting pointer events to an asynchronous service provider</span> |
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25 <a name="l00015"></a>00015 <span class="comment">// and handling the completed requests.</span> |
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26 <a name="l00016"></a>00016 <span class="comment">//</span> |
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27 <a name="l00017"></a>00017 |
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28 <a name="l00018"></a>00018 |
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29 <a name="l00019"></a>00019 |
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30 <a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="transparent_8h.html">transparent.h</a>"</span> |
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31 <a name="l00025"></a>00025 |
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32 <a name="l00030"></a><a class="code" href="class_c_event_handler.html#a0e709c6e924eb9799e69ea10e26824d6">00030</a> <a class="code" href="class_c_event_handler.html">CEventHandler</a>* <a class="code" href="class_c_event_handler.html#a0e709c6e924eb9799e69ea10e26824d6">CEventHandler::NewL</a>(RWsSession& aWs) |
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33 <a name="l00031"></a>00031 { |
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34 <a name="l00032"></a>00032 <a class="code" href="class_c_event_handler.html">CEventHandler</a>* eventHandler = <span class="keyword">new</span>(ELeave) <a class="code" href="class_c_event_handler.html">CEventHandler</a>(aWs); |
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35 <a name="l00033"></a>00033 CleanupStack::PushL(eventHandler); |
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36 <a name="l00034"></a>00034 eventHandler->ConstructL(); |
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37 <a name="l00035"></a>00035 CleanupStack::Pop(eventHandler); |
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38 <a name="l00036"></a>00036 <span class="keywordflow">return</span> eventHandler; |
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39 <a name="l00037"></a>00037 } |
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40 <a name="l00038"></a>00038 |
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41 <a name="l00043"></a>00043 CEventHandler::CEventHandler(RWsSession& aWs) : CActive(CActive::EPriorityStandard),iWs(aWs) |
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42 <a name="l00044"></a>00044 { |
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43 <a name="l00045"></a>00045 } |
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44 <a name="l00046"></a>00046 |
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45 <a name="l00050"></a>00050 <span class="keywordtype">void</span> CEventHandler ::ConstructL() |
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46 <a name="l00051"></a>00051 { |
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47 <a name="l00052"></a>00052 CActiveScheduler::Add(<span class="keyword">this</span>); |
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48 <a name="l00053"></a>00053 } |
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49 <a name="l00054"></a>00054 |
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50 <a name="l00058"></a><a class="code" href="class_c_event_handler.html#a41b6924a33472d04cee2fe3e90cc6acc">00058</a> <a class="code" href="class_c_event_handler.html#a41b6924a33472d04cee2fe3e90cc6acc">CEventHandler ::~CEventHandler</a> () |
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51 <a name="l00059"></a>00059 { |
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52 <a name="l00060"></a>00060 Cancel(); |
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53 <a name="l00061"></a>00061 } |
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54 <a name="l00062"></a>00062 |
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55 <a name="l00067"></a>00067 <span class="keywordtype">void</span> CEventHandler ::DoCancel() |
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56 <a name="l00068"></a>00068 { |
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57 <a name="l00069"></a>00069 iWs.EventReadyCancel(); |
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58 <a name="l00070"></a>00070 } |
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59 <a name="l00071"></a>00071 |
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60 <a name="l00076"></a>00076 <span class="keywordtype">void</span> CEventHandler::RunL() |
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61 <a name="l00077"></a>00077 { |
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62 <a name="l00078"></a>00078 iWs.GetEvent(iWsEvent); |
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63 <a name="l00079"></a>00079 TInt eventType = iWsEvent.Type(); |
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64 <a name="l00080"></a>00080 |
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65 <a name="l00081"></a>00081 <span class="comment">// Take action for the event that occurred</span> |
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66 <a name="l00082"></a>00082 <span class="keywordflow">switch</span> (eventType) |
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67 <a name="l00083"></a>00083 { |
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68 <a name="l00084"></a>00084 <span class="comment">// Events global within window group</span> |
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69 <a name="l00085"></a>00085 <span class="keywordflow">case</span> EEventNull: |
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70 <a name="l00086"></a>00086 <span class="keywordflow">break</span>; |
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71 <a name="l00087"></a>00087 <span class="keywordflow">case</span> EEventPointer: |
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72 <a name="l00088"></a>00088 { |
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73 <a name="l00089"></a>00089 TPointerEvent& pointerEvent = *iWsEvent.Pointer(); |
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74 <a name="l00090"></a>00090 <a class="code" href="class_c_event_handler.html#aaebc5150679bb4621e2bc353d6b97131">HandlePointerEvent</a>(pointerEvent); |
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75 <a name="l00091"></a>00091 } |
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76 <a name="l00092"></a>00092 <span class="keywordflow">break</span>; |
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77 <a name="l00093"></a>00093 } |
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78 <a name="l00094"></a>00094 <span class="comment">// Maintain outstanding request</span> |
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79 <a name="l00095"></a>00095 <a class="code" href="class_c_event_handler.html#aac65df544e26e3ef06cc087b514c030a">IssueRequest</a>(); |
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80 <a name="l00096"></a>00096 } |
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81 <a name="l00097"></a>00097 |
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82 <a name="l00103"></a><a class="code" href="class_c_event_handler.html#aaebc5150679bb4621e2bc353d6b97131">00103</a> <span class="keywordtype">void</span> <a class="code" href="class_c_event_handler.html#aaebc5150679bb4621e2bc353d6b97131">CEventHandler::HandlePointerEvent</a>(TPointerEvent& aPointerEvent) |
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83 <a name="l00104"></a>00104 { |
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84 <a name="l00105"></a>00105 <span class="keywordflow">switch</span> (aPointerEvent.iType) |
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85 <a name="l00106"></a>00106 { |
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86 <a name="l00107"></a>00107 <span class="keywordflow">case</span> TPointerEvent::EButton1Down: |
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87 <a name="l00108"></a>00108 { |
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88 <a name="l00109"></a>00109 <a class="code" href="class_c_event_handler.html#a72d34b52144f8e5312ec78abe44ee895">InfoMessage</a>(KEventButton1Pressed); |
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89 <a name="l00110"></a>00110 <span class="keywordflow">break</span>; |
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90 <a name="l00111"></a>00111 } |
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91 <a name="l00112"></a>00112 <span class="keywordflow">case</span> TPointerEvent::EButton2Down: |
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92 <a name="l00113"></a>00113 { |
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93 <a name="l00114"></a>00114 <a class="code" href="class_c_event_handler.html#a72d34b52144f8e5312ec78abe44ee895">InfoMessage</a>(KEventButton2Pressed); |
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94 <a name="l00115"></a>00115 <span class="keywordflow">break</span>; |
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95 <a name="l00116"></a>00116 } |
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96 <a name="l00117"></a>00117 <span class="keywordflow">case</span> TPointerEvent::EButton3Down: |
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97 <a name="l00118"></a>00118 { |
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98 <a name="l00119"></a>00119 <a class="code" href="class_c_event_handler.html#a72d34b52144f8e5312ec78abe44ee895">InfoMessage</a>(KEventButton3Pressed); |
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99 <a name="l00120"></a>00120 <span class="keywordflow">break</span>; |
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100 <a name="l00121"></a>00121 } |
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101 <a name="l00122"></a>00122 <span class="keywordflow">default</span>: |
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102 <a name="l00123"></a>00123 { |
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103 <a name="l00124"></a>00124 <span class="keywordflow">break</span>; |
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104 <a name="l00125"></a>00125 } |
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105 <a name="l00126"></a>00126 } |
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106 <a name="l00127"></a>00127 } |
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107 <a name="l00128"></a>00128 |
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108 <a name="l00133"></a><a class="code" href="class_c_event_handler.html#aac65df544e26e3ef06cc087b514c030a">00133</a> <span class="keywordtype">void</span> <a class="code" href="class_c_event_handler.html#aac65df544e26e3ef06cc087b514c030a">CEventHandler::IssueRequest</a>() |
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109 <a name="l00134"></a>00134 { |
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110 <a name="l00135"></a>00135 <span class="keywordflow">if</span>(!IsActive()) |
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111 <a name="l00136"></a>00136 { |
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112 <a name="l00137"></a>00137 iWs.EventReady(&iStatus); |
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113 <a name="l00138"></a>00138 SetActive(); |
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114 <a name="l00139"></a>00139 } |
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115 <a name="l00140"></a>00140 } |
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116 <a name="l00141"></a>00141 |
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117 <a name="l00146"></a><a class="code" href="class_c_event_handler.html#a72d34b52144f8e5312ec78abe44ee895">00146</a> <span class="keywordtype">void</span> <a class="code" href="class_c_event_handler.html#a72d34b52144f8e5312ec78abe44ee895">CEventHandler::InfoMessage</a>(<span class="keyword">const</span> TDesC& aMsg) |
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118 <a name="l00147"></a>00147 { |
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119 <a name="l00148"></a>00148 CEikonEnv *obj = CEikonEnv::Static(); |
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120 <a name="l00149"></a>00149 obj->InfoMsg(aMsg); |
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121 <a name="l00150"></a>00150 } |
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122 <a name="l00151"></a>00151 |
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123 </pre></div></div> |
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