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<h1>dox/Widgets/vtkWidgetRepresentation.h</h1><a href="a03750.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: vtkWidgetRepresentation.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="l00041"></a>00041 <span class="preprocessor">#ifndef __vtkWidgetRepresentation_h</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#define __vtkWidgetRepresentation_h</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span>
<a name="l00044"></a>00044 <span class="preprocessor">#include "<a class="code" href="a02113.html">vtkProp.h</a>"</span>
<a name="l00045"></a>00045 
<a name="l00046"></a>00046 <span class="keyword">class </span><a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a>;
<a name="l00047"></a>00047 
<a name="l00048"></a>00048 
<a name="l00049"></a><a class="code" href="a01877.html">00049</a> <span class="keyword">class </span><a class="code" href="a02170.html#09e5ba6764f54642494e26907662d55f">VTK_WIDGETS_EXPORT</a> <a class="code" href="a01877.html" title="abstract class defines interface between the widget and widget representation classes...">vtkWidgetRepresentation</a> : <span class="keyword">public</span> <a class="code" href="a01317.html" title="abstract superclass for all actors, volumes and annotations">vtkProp</a>
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 <span class="keyword">public</span>:
<a name="l00053"></a>00053 
<a name="l00054"></a><a class="code" href="a01877.html#7b6d273bf22eec5f99a88a0e81cde112">00054</a>   vtkTypeRevisionMacro(<a class="code" href="a01877.html" title="abstract class defines interface between the widget and widget representation classes...">vtkWidgetRepresentation</a>,<a class="code" href="a01317.html" title="abstract superclass for all actors, volumes and annotations">vtkProp</a>);
<a name="l00055"></a>00055   <span class="keywordtype">void</span> <a class="code" href="a01317.html#68159056e27c3e2c4b372f6bd253e3f9">PrintSelf</a>(ostream&amp; os, <a class="code" href="a00869.html" title="a simple class to control print indentation">vtkIndent</a> indent);
<a name="l00057"></a>00057 
<a name="l00059"></a>00059 
<a name="l00067"></a>00067   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetRenderer(<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a> *ren);
<a name="l00068"></a>00068   vtkGetObjectMacro(Renderer,<a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a>);
<a name="l00069"></a>00069   <span class="keyword">virtual</span> <span class="keywordtype">void</span> BuildRepresentation() = 0;
<a name="l00071"></a>00071 
<a name="l00073"></a>00073 
<a name="l00099"></a><a class="code" href="a01877.html#dbe69d604d5e458504229326abeecd3b">00099</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> PlaceWidget(<span class="keywordtype">double</span>* vtkNotUsed(bounds[6])) {}
<a name="l00100"></a><a class="code" href="a01877.html#9aece0d7ff74c1fcfd5f427088cab77b">00100</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> StartWidgetInteraction(<span class="keywordtype">double</span> eventPos[2]) { (void)eventPos; }
<a name="l00101"></a><a class="code" href="a01877.html#73adbf84d1745e1393eda384a5f31d52">00101</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> WidgetInteraction(<span class="keywordtype">double</span> newEventPos[2]) { (void)newEventPos; }
<a name="l00102"></a><a class="code" href="a01877.html#879e55c5bac3cc9a471140addd500900">00102</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> EndWidgetInteraction(<span class="keywordtype">double</span> newEventPos[2]) { (void)newEventPos; }
<a name="l00103"></a>00103   <span class="keyword">virtual</span> <span class="keywordtype">int</span> ComputeInteractionState(<span class="keywordtype">int</span> X, <span class="keywordtype">int</span> Y, <span class="keywordtype">int</span> modify=0);
<a name="l00104"></a><a class="code" href="a01877.html#0994e3df6b10aa489984e308480d3c26">00104</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> GetInteractionState()
<a name="l00105"></a>00105     {<span class="keywordflow">return</span> this-&gt;InteractionState;}
<a name="l00106"></a><a class="code" href="a01877.html#4bccab4646d6c0f19d8888a3db9845ff">00106</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> Highlight(<span class="keywordtype">int</span> vtkNotUsed(highlightOn)) {}
<a name="l00108"></a>00108 
<a name="l00110"></a>00110 
<a name="l00116"></a>00116   vtkSetClampMacro(PlaceFactor,<span class="keywordtype">double</span>,0.01,<a class="code" href="a02149.html#a933eb1ff8ef089de59cce7b41e21261">VTK_DOUBLE_MAX</a>);
<a name="l00117"></a>00117   vtkGetMacro(PlaceFactor,<span class="keywordtype">double</span>);
<a name="l00119"></a>00119 
<a name="l00121"></a>00121 
<a name="l00129"></a>00129   vtkSetClampMacro(HandleSize,<span class="keywordtype">double</span>,0.001,1000);
<a name="l00130"></a>00130   vtkGetMacro(HandleSize,<span class="keywordtype">double</span>);
<a name="l00132"></a>00132 
<a name="l00134"></a>00134 
<a name="l00136"></a>00136   vtkGetMacro( NeedToRender, <span class="keywordtype">int</span> );
<a name="l00137"></a>00137   vtkSetClampMacro( NeedToRender, <span class="keywordtype">int</span>, 0, 1 );
<a name="l00138"></a>00138   vtkBooleanMacro( NeedToRender, <span class="keywordtype">int</span> );
<a name="l00140"></a>00140   
<a name="l00142"></a>00142 
<a name="l00149"></a><a class="code" href="a01877.html#32efe13a1f1627c90bde36414bd9df9a">00149</a>   <span class="keyword">virtual</span> <span class="keywordtype">double</span> *<a class="code" href="a01317.html#7e1d63e4282aa0a2f78c8bb3cc835368">GetBounds</a>() {<span class="keywordflow">return</span> NULL;}
<a name="l00150"></a>00150   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="a01317.html#e35249f4300af02ba868489ff25f3a2b">ShallowCopy</a>(<a class="code" href="a01317.html" title="abstract superclass for all actors, volumes and annotations">vtkProp</a> *prop);
<a name="l00151"></a><a class="code" href="a01877.html#941529adca4ea1e3152ecbd7657aed6f">00151</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="a01317.html#d4cbf8fa634a622b9e1419d897a4bd7f">GetActors</a>(<a class="code" href="a01321.html" title="a list of Props">vtkPropCollection</a> *) {}
<a name="l00152"></a><a class="code" href="a01877.html#deb781ee0b2e05240de3b1d099346714">00152</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="a01317.html#f8df3a3e67b6d97748bb1a6505265218">GetActors2D</a>(<a class="code" href="a01321.html" title="a list of Props">vtkPropCollection</a> *) {}
<a name="l00153"></a><a class="code" href="a01877.html#2dd9b9e03f7cdde3c032a0f6a27d5f63">00153</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="a01317.html#d8504a3b3d437b0fba4cb3ada9110604">GetVolumes</a>(<a class="code" href="a01321.html" title="a list of Props">vtkPropCollection</a> *) {}
<a name="l00154"></a><a class="code" href="a01877.html#a5428644337fcf61013390e6d619ff9f">00154</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="a01317.html#f2034bece75524dfa42553396d208a22">ReleaseGraphicsResources</a>(<a class="code" href="a01886.html" title="window superclass for vtkRenderWindow">vtkWindow</a> *) {}
<a name="l00155"></a><a class="code" href="a01877.html#01e90cbe6f75838c27c1d1c0c5e37521">00155</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a01317.html#d7e0fa1336c19247f11a73b4ebaddf13">RenderOverlay</a>(<a class="code" href="a01833.html" title="abstract specification for Viewports">vtkViewport</a> *vtkNotUsed(viewport)) {<span class="keywordflow">return</span> 0;}
<a name="l00156"></a><a class="code" href="a01877.html#5db136973bcd6232d212eeb1afcd0354">00156</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a01317.html#4d7c8be45744400fba096728ce81f33a">RenderOpaqueGeometry</a>(<a class="code" href="a01833.html" title="abstract specification for Viewports">vtkViewport</a> *vtkNotUsed(viewport)) {<span class="keywordflow">return</span> 0;}
<a name="l00157"></a><a class="code" href="a01877.html#72c591ce53e9320977850735a4057870">00157</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a01317.html#cf64ca8da81629df108f095c6535548e">RenderTranslucentPolygonalGeometry</a>(<a class="code" href="a01833.html" title="abstract specification for Viewports">vtkViewport</a> *vtkNotUsed(viewport)) {<span class="keywordflow">return</span> 0;}
<a name="l00158"></a><a class="code" href="a01877.html#ad30968d6bf3c9749ca16e2231a6b04a">00158</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a01317.html#b7b90eeef384ac8072748f42d2c25ff2">RenderVolumetricGeometry</a>(<a class="code" href="a01833.html" title="abstract specification for Viewports">vtkViewport</a> *vtkNotUsed(viewport)) {<span class="keywordflow">return</span> 0;}
<a name="l00159"></a><a class="code" href="a01877.html#8b7761451b47996f96aacab32882ca25">00159</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a01317.html#6e32af79f4756a287a61017b7c2f7364">HasTranslucentPolygonalGeometry</a>() { <span class="keywordflow">return</span> 0; }
<a name="l00161"></a>00161   
<a name="l00162"></a>00162 <span class="keyword">protected</span>:
<a name="l00163"></a>00163   <a class="code" href="a01877.html" title="abstract class defines interface between the widget and widget representation classes...">vtkWidgetRepresentation</a>();
<a name="l00164"></a>00164   ~<a class="code" href="a01877.html" title="abstract class defines interface between the widget and widget representation classes...">vtkWidgetRepresentation</a>();
<a name="l00165"></a>00165 
<a name="l00166"></a>00166   <span class="comment">// The renderer in which this widget is placed</span>
<a name="l00167"></a><a class="code" href="a01877.html#4fb4ea74970391cff668ee67e1ed77ee">00167</a>   <a class="code" href="a01480.html" title="abstract specification for renderers">vtkRenderer</a> *Renderer;
<a name="l00168"></a>00168 
<a name="l00169"></a>00169   <span class="comment">// The state of this representation based on a recent event</span>
<a name="l00170"></a><a class="code" href="a01877.html#8cfc168ec7a4ff6910fff77389d227b4">00170</a>   <span class="keywordtype">int</span> InteractionState;
<a name="l00171"></a>00171 
<a name="l00172"></a>00172   <span class="comment">// These are used to track the beginning of interaction with the representation</span>
<a name="l00173"></a>00173   <span class="comment">// It's dimensioned [3] because some events re processed in 3D.</span>
<a name="l00174"></a><a class="code" href="a01877.html#127e9c0daf1706092fdc94685b271112">00174</a>   <span class="keywordtype">double</span> StartEventPosition[3];
<a name="l00175"></a>00175 
<a name="l00176"></a>00176   <span class="comment">// Instance variable and members supporting suclasses</span>
<a name="l00177"></a><a class="code" href="a01877.html#e036d819f70ac213ae6ab2a092f2dadb">00177</a>   <span class="keywordtype">double</span> PlaceFactor; <span class="comment">// Used to control how widget is placed around bounding box</span>
<a name="l00178"></a><a class="code" href="a01877.html#3be39c801577684ce9cf5fffa2617b74">00178</a>   <span class="keywordtype">int</span>    Placed; <span class="comment">// Indicate whether widget has been placed</span>
<a name="l00179"></a>00179   <span class="keywordtype">void</span>   AdjustBounds(<span class="keywordtype">double</span> bounds[6], <span class="keywordtype">double</span> newBounds[6], <span class="keywordtype">double</span> <a class="code" href="a03761.html#c6551f7bf833e8254b2b3ecdaea0d2107cf190fdac7e1fa1890c67ec92d414d6">center</a>[3]);
<a name="l00180"></a><a class="code" href="a01877.html#97801d972522ee77ab738c1c8fdc1450">00180</a>   <span class="keywordtype">double</span> InitialBounds[6]; <span class="comment">//initial bounds on place widget (valid after PlaceWidget)</span>
<a name="l00181"></a><a class="code" href="a01877.html#784978ba895aca13bea5dbb8080f73e6">00181</a>   <span class="keywordtype">double</span> InitialLength; <span class="comment">//initial length on place widget</span>
<a name="l00182"></a>00182 
<a name="l00183"></a>00183   <span class="comment">// Sizing handles is tricky because the procedure requires information</span>
<a name="l00184"></a>00184   <span class="comment">// relative to the last pick, as well as a live renderer to perform</span>
<a name="l00185"></a>00185   <span class="comment">// coordinate conversions. In some cases, a pick is never made so handle</span>
<a name="l00186"></a>00186   <span class="comment">// sizing has to follow a different path. The following ivars help with</span>
<a name="l00187"></a>00187   <span class="comment">// this process.</span>
<a name="l00188"></a><a class="code" href="a01877.html#c1b1fb8c9d98930617afaa2e6c63448e">00188</a>   <span class="keywordtype">int</span>    ValidPick; <span class="comment">//indicate when valid picks are made</span>
<a name="l00189"></a>00189 
<a name="l00190"></a>00190   <span class="comment">// Members use to control handle size. The two methods return a "radius"</span>
<a name="l00191"></a>00191   <span class="comment">// in world coordinates. Note that the HandleSize data member is used</span>
<a name="l00192"></a>00192   <span class="comment">// internal to the SizeHandles__() methods.</span>
<a name="l00193"></a><a class="code" href="a01877.html#be2f42f49970424b9f35d0d20d646770">00193</a>   <span class="keywordtype">double</span> HandleSize; <span class="comment">//controlling relative size of widget handles</span>
<a name="l00194"></a>00194   <span class="keywordtype">double</span> SizeHandlesRelativeToViewport(<span class="keywordtype">double</span> factor, <span class="keywordtype">double</span> pos[3]);
<a name="l00195"></a>00195   <span class="keywordtype">double</span> SizeHandlesInPixels(<span class="keywordtype">double</span> factor,<span class="keywordtype">double</span> pos[3]);
<a name="l00196"></a>00196   
<a name="l00197"></a>00197   <span class="comment">// Try and reduce multiple renders</span>
<a name="l00198"></a><a class="code" href="a01877.html#3826597677ee1830436ab0500b1bb2d7">00198</a>   <span class="keywordtype">int</span> NeedToRender;
<a name="l00199"></a>00199   
<a name="l00200"></a>00200   <span class="comment">// This is the time that the representation was built. This data member</span>
<a name="l00201"></a>00201   <span class="comment">// can be used to reduce the time spent building the widget.</span>
<a name="l00202"></a><a class="code" href="a01877.html#b1dc7e72b346a9bc71f92caf46a29807">00202</a>   <a class="code" href="a01719.html" title="record modification and/or execution time">vtkTimeStamp</a>  BuildTime;
<a name="l00203"></a>00203 
<a name="l00204"></a>00204 <span class="keyword">private</span>:
<a name="l00205"></a>00205   <a class="code" href="a01877.html" title="abstract class defines interface between the widget and widget representation classes...">vtkWidgetRepresentation</a>(<span class="keyword">const</span> <a class="code" href="a01877.html" title="abstract class defines interface between the widget and widget representation classes...">vtkWidgetRepresentation</a>&amp;);  <span class="comment">//Not implemented</span>
<a name="l00206"></a>00206   <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="a01877.html" title="abstract class defines interface between the widget and widget representation classes...">vtkWidgetRepresentation</a>&amp;);  <span class="comment">//Not implemented</span>
<a name="l00207"></a>00207 };
<a name="l00208"></a>00208 
<a name="l00209"></a>00209 <span class="preprocessor">#endif</span>
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