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<h1>dox/Rendering/vtkInteractorObserver.h</h1><a href="a03423.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*=========================================================================</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment">  Program:   Visualization Toolkit</span>
<a name="l00004"></a>00004 <span class="comment">  Module:    $RCSfile: vtkInteractorObserver.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen</span>
<a name="l00007"></a>00007 <span class="comment">  All rights reserved.</span>
<a name="l00008"></a>00008 <span class="comment">  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment">     This software is distributed WITHOUT ANY WARRANTY; without even</span>
<a name="l00011"></a>00011 <span class="comment">     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR</span>
<a name="l00012"></a>00012 <span class="comment">     PURPOSE.  See the above copyright notice for more information.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">=========================================================================*/</span>
<a name="l00047"></a>00047 <span class="preprocessor">#ifndef __vtkInteractorObserver_h</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#define __vtkInteractorObserver_h</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span>
<a name="l00050"></a>00050 <span class="preprocessor">#include "<a class="code" href="a02079.html">vtkObject.h</a>"</span>
<a name="l00051"></a>00051 
<a name="l00052"></a>00052 <span class="keyword">class </span><a class="code" href="a01491.html" title="platform-independent render window interaction including picking and frame rate control...">vtkRenderWindowInteractor</a>;
<a name="l00053"></a>00053 <span class="keyword">class </span><a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a>;
<a name="l00054"></a>00054 <span class="keyword">class </span><a class="code" href="a00226.html" title="supports function callbacks">vtkCallbackCommand</a>;
<a name="l00055"></a>00055 <span class="keyword">class </span><a class="code" href="a01091.html" title="manage contention for cursors and other resources">vtkObserverMediator</a>;
<a name="l00056"></a>00056 
<a name="l00057"></a>00057 
<a name="l00058"></a><a class="code" href="a00902.html">00058</a> <span class="keyword">class </span><a class="code" href="a02170.html#4019f67b2e7d601f2cf984e448308dbb">VTK_RENDERING_EXPORT</a> <a class="code" href="a00902.html" title="an abstract superclass for classes observing events invoked by vtkRenderWindowInteractor...">vtkInteractorObserver</a> : <span class="keyword">public</span> <a class="code" href="a01084.html" title="abstract base class for most VTK objects">vtkObject</a>
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 <span class="keyword">public</span>:
<a name="l00061"></a><a class="code" href="a00902.html#30ef163999105e35a0e83723c7233228">00061</a>   vtkTypeRevisionMacro(<a class="code" href="a00902.html" title="an abstract superclass for classes observing events invoked by vtkRenderWindowInteractor...">vtkInteractorObserver</a>,<a class="code" href="a01084.html" title="abstract base class for most VTK objects">vtkObject</a>);
<a name="l00062"></a>00062   <span class="keywordtype">void</span> <a class="code" href="a01084.html#bf3dbb4154289b56a12483eee3866263">PrintSelf</a>(ostream&amp; os, <a class="code" href="a00869.html" title="a simple class to control print indentation">vtkIndent</a> indent);
<a name="l00063"></a>00063 
<a name="l00065"></a>00065 
<a name="l00071"></a><a class="code" href="a00902.html#b43191e675e294441a76efa7e4f884d9">00071</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetEnabled(<span class="keywordtype">int</span>) {};
<a name="l00072"></a><a class="code" href="a00902.html#37aa7d2d0b651dbe7d0f4d5d46c910f8">00072</a>   <span class="keywordtype">int</span> GetEnabled() {<span class="keywordflow">return</span> this-&gt;Enabled;}
<a name="l00073"></a><a class="code" href="a00902.html#1e1599a365ba9662c0e7263617e839e0">00073</a>   <span class="keywordtype">void</span> EnabledOn() {this-&gt;SetEnabled(1);}
<a name="l00074"></a><a class="code" href="a00902.html#0dd21e1f9c916b37e2d4601203f321be">00074</a>   <span class="keywordtype">void</span> EnabledOff() {this-&gt;SetEnabled(0);}
<a name="l00075"></a><a class="code" href="a00902.html#e2e2fe8d3357ce76c75f056aecae30f2">00075</a>   <span class="keywordtype">void</span> On() {this-&gt;SetEnabled(1);}
<a name="l00076"></a><a class="code" href="a00902.html#cbb83598302fe928e1be539efe934f11">00076</a>   <span class="keywordtype">void</span> Off() {this-&gt;SetEnabled(0);}
<a name="l00078"></a>00078 
<a name="l00080"></a>00080 
<a name="l00085"></a>00085   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetInteractor(<a class="code" href="a01491.html" title="platform-independent render window interaction including picking and frame rate control...">vtkRenderWindowInteractor</a>* iren);
<a name="l00086"></a>00086   vtkGetObjectMacro(Interactor, <a class="code" href="a01491.html" title="platform-independent render window interaction including picking and frame rate control...">vtkRenderWindowInteractor</a>);
<a name="l00088"></a>00088 
<a name="l00090"></a>00090 
<a name="l00098"></a>00098   vtkSetClampMacro(Priority,<span class="keywordtype">float</span>,0.0f,1.0f);
<a name="l00099"></a>00099   vtkGetMacro(Priority,<span class="keywordtype">float</span>);
<a name="l00101"></a>00101 
<a name="l00103"></a>00103 
<a name="l00107"></a>00107   vtkSetMacro(KeyPressActivation,<span class="keywordtype">int</span>);
<a name="l00108"></a>00108   vtkGetMacro(KeyPressActivation,<span class="keywordtype">int</span>);
<a name="l00109"></a>00109   vtkBooleanMacro(KeyPressActivation,<span class="keywordtype">int</span>);
<a name="l00111"></a>00111   
<a name="l00113"></a>00113 
<a name="l00119"></a>00119   vtkSetMacro(KeyPressActivationValue,<span class="keywordtype">char</span>);
<a name="l00120"></a>00120   vtkGetMacro(KeyPressActivationValue,<span class="keywordtype">char</span>);
<a name="l00122"></a>00122 
<a name="l00124"></a>00124 
<a name="l00130"></a>00130   vtkGetObjectMacro(DefaultRenderer,<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a>);
<a name="l00131"></a>00131   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetDefaultRenderer(<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a>*);
<a name="l00133"></a>00133 
<a name="l00135"></a>00135 
<a name="l00143"></a>00143   vtkGetObjectMacro(CurrentRenderer,<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a>);
<a name="l00144"></a>00144   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetCurrentRenderer(<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a>*);
<a name="l00146"></a>00146 
<a name="l00148"></a>00148   <span class="keyword">virtual</span> <span class="keywordtype">void</span> OnChar();
<a name="l00149"></a>00149   
<a name="l00151"></a>00151 
<a name="l00153"></a>00153   <span class="keyword">static</span> <span class="keywordtype">void</span> ComputeDisplayToWorld(<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a> *ren, <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, 
<a name="l00154"></a>00154                                     <span class="keywordtype">double</span> z, <span class="keywordtype">double</span> worldPt[4]);
<a name="l00155"></a>00155   <span class="keyword">static</span> <span class="keywordtype">void</span> ComputeWorldToDisplay(<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a> *ren, <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, 
<a name="l00156"></a>00156                                     <span class="keywordtype">double</span> z, <span class="keywordtype">double</span> displayPt[3]);
<a name="l00158"></a>00158 
<a name="l00160"></a>00160 
<a name="l00168"></a>00168   <span class="keywordtype">void</span> GrabFocus(<a class="code" href="a00291.html" title="superclass for callback/observer methods">vtkCommand</a> *mouseEvents, <a class="code" href="a00291.html" title="superclass for callback/observer methods">vtkCommand</a> *keypressEvents=NULL);
<a name="l00169"></a>00169   <span class="keywordtype">void</span> ReleaseFocus();
<a name="l00170"></a>00170   <span class="comment">//ETX</span>
<a name="l00172"></a>00172 <span class="comment"></span>
<a name="l00173"></a>00173 <span class="keyword">protected</span>:
<a name="l00174"></a>00174   <a class="code" href="a00902.html" title="an abstract superclass for classes observing events invoked by vtkRenderWindowInteractor...">vtkInteractorObserver</a>();
<a name="l00175"></a>00175   ~<a class="code" href="a00902.html" title="an abstract superclass for classes observing events invoked by vtkRenderWindowInteractor...">vtkInteractorObserver</a>();
<a name="l00176"></a>00176 
<a name="l00178"></a>00178 
<a name="l00181"></a>00181   <span class="keyword">virtual</span> <span class="keywordtype">void</span> StartInteraction();
<a name="l00182"></a>00182   <span class="keyword">virtual</span> <span class="keywordtype">void</span> EndInteraction();
<a name="l00184"></a>00184 
<a name="l00186"></a>00186 
<a name="l00188"></a>00188   <span class="keyword">static</span> <span class="keywordtype">void</span> ProcessEvents(<a class="code" href="a01084.html" title="abstract base class for most VTK objects">vtkObject</a>* <span class="keywordtype">object</span>, 
<a name="l00189"></a>00189                             <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> event,
<a name="l00190"></a>00190                             <span class="keywordtype">void</span>* clientdata, 
<a name="l00191"></a>00191                             <span class="keywordtype">void</span>* calldata);
<a name="l00193"></a>00193 
<a name="l00195"></a>00195 
<a name="l00196"></a>00196   <span class="keywordtype">void</span> ComputeDisplayToWorld(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keywordtype">double</span> z, 
<a name="l00197"></a>00197                              <span class="keywordtype">double</span> worldPt[4]);
<a name="l00198"></a>00198   <span class="keywordtype">void</span> ComputeWorldToDisplay(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keywordtype">double</span> z, 
<a name="l00199"></a>00199                              <span class="keywordtype">double</span> displayPt[3]);
<a name="l00201"></a>00201     
<a name="l00202"></a>00202   <span class="comment">// The state of the widget, whether on or off (observing events or not)</span>
<a name="l00203"></a><a class="code" href="a00902.html#6f627f6aabcdd64c205183239098e1bf">00203</a>   <span class="keywordtype">int</span> Enabled;
<a name="l00204"></a>00204   
<a name="l00205"></a>00205   <span class="comment">// Used to process events</span>
<a name="l00206"></a><a class="code" href="a00902.html#23c69f660da15293fdcdb0aac8a18f81">00206</a>   <a class="code" href="a00226.html" title="supports function callbacks">vtkCallbackCommand</a>* EventCallbackCommand; <span class="comment">//subclasses use one</span>
<a name="l00207"></a><a class="code" href="a00902.html#700270dde62a29f97e8254f02faa5558">00207</a>   <a class="code" href="a00226.html" title="supports function callbacks">vtkCallbackCommand</a>* KeyPressCallbackCommand; <span class="comment">//listens to key activation</span>
<a name="l00208"></a>00208 
<a name="l00209"></a>00209   <span class="comment">// Priority at which events are processed</span>
<a name="l00210"></a><a class="code" href="a00902.html#e4837790785a1158efbf62191506564b">00210</a>   <span class="keywordtype">float</span> Priority;
<a name="l00211"></a>00211 
<a name="l00212"></a>00212   <span class="comment">// Keypress activation controls</span>
<a name="l00213"></a><a class="code" href="a00902.html#0b3e5ee9edb9e4c7e016e628872130f3">00213</a>   <span class="keywordtype">int</span> KeyPressActivation;
<a name="l00214"></a><a class="code" href="a00902.html#7f89a1783e34ba9684c8e8b300641bb2">00214</a>   <span class="keywordtype">char</span> KeyPressActivationValue;
<a name="l00215"></a>00215 
<a name="l00216"></a>00216   <span class="comment">// Used to associate observers with the interactor</span>
<a name="l00217"></a><a class="code" href="a00902.html#ee5ce6d55d8ea88fa0f210f46bfa6d68">00217</a>   <a class="code" href="a01491.html" title="platform-independent render window interaction including picking and frame rate control...">vtkRenderWindowInteractor</a> *Interactor;
<a name="l00218"></a>00218   
<a name="l00219"></a>00219   <span class="comment">// Internal ivars for processing events</span>
<a name="l00220"></a><a class="code" href="a00902.html#3ef2c29da4b1916d4c50cf5f6a81c5fe">00220</a>   <a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a> *CurrentRenderer;
<a name="l00221"></a><a class="code" href="a00902.html#6c23d97509e04a1d274903f0a652a280">00221</a>   <a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a> *DefaultRenderer;
<a name="l00222"></a>00222 
<a name="l00223"></a><a class="code" href="a00902.html#9d13954f425a8561d93878296258af8c">00223</a>   <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> CharObserverTag;
<a name="l00224"></a><a class="code" href="a00902.html#b7372f7c33b787f43f84c29c92255bdf">00224</a>   <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> DeleteObserverTag;
<a name="l00225"></a>00225 
<a name="l00226"></a>00226   <span class="comment">// The mediator used to request resources from the interactor.</span>
<a name="l00227"></a><a class="code" href="a00902.html#a0119f13cc5bad77b0a7bc18a65e3bdc">00227</a>   <a class="code" href="a01091.html" title="manage contention for cursors and other resources">vtkObserverMediator</a> *ObserverMediator;
<a name="l00228"></a>00228   <span class="keywordtype">int</span> RequestCursorShape(<span class="keywordtype">int</span> requestedShape);
<a name="l00229"></a>00229 
<a name="l00230"></a>00230 <span class="keyword">private</span>:
<a name="l00231"></a>00231   <a class="code" href="a00902.html" title="an abstract superclass for classes observing events invoked by vtkRenderWindowInteractor...">vtkInteractorObserver</a>(<span class="keyword">const</span> <a class="code" href="a00902.html" title="an abstract superclass for classes observing events invoked by vtkRenderWindowInteractor...">vtkInteractorObserver</a>&amp;);  <span class="comment">// Not implemented.</span>
<a name="l00232"></a>00232   <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="a00902.html" title="an abstract superclass for classes observing events invoked by vtkRenderWindowInteractor...">vtkInteractorObserver</a>&amp;);  <span class="comment">// Not implemented.</span>
<a name="l00233"></a>00233   
<a name="l00234"></a>00234 };
<a name="l00235"></a>00235 
<a name="l00236"></a>00236 <span class="preprocessor">#endif</span>
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