X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=packages%2Fvtk%2Fsrc%2FbbvtkText3D.cxx;fp=packages%2Fvtk%2Fsrc%2FbbvtkText3D.cxx;h=880bd615d0343140d8d891419487c2333663e3a3;hb=9e95afcbc51687ad39d72aa6017837717bcb486b;hp=ef38350d3ea4aa35aba036c22337e6f95d8e9547;hpb=6d51daa37bb1a74e8a42053a4c47c3e3ef074406;p=bbtk.git

diff --git a/packages/vtk/src/bbvtkText3D.cxx b/packages/vtk/src/bbvtkText3D.cxx
index ef38350..880bd61 100644
--- a/packages/vtk/src/bbvtkText3D.cxx
+++ b/packages/vtk/src/bbvtkText3D.cxx
@@ -4,9 +4,6 @@
 #include "bbvtkText3D.h"
 #include "bbvtkPackage.h"
 
-#include "vtkTextActor3D.h"
-#include "vtkTextProperty.h"
-
 
 namespace bbvtk
 {
@@ -31,28 +28,35 @@ void Text3D::Process()
 //    * TYPE is the C++ type of the input/output
 //      (the one provided in the attribute 'type' of the tag 'input')
 
-	vtkTextActor3D *textActor = vtkTextActor3D::New();
-	vtkTextProperty *textprop = vtkTextProperty::New();
-	textprop->SetColor( bbGetInputColour()[0] , bbGetInputColour()[1], bbGetInputColour()[2] );
-	textprop->SetFontSize( 14 );
-
-	textActor->SetTextProperty( textprop  );
-
-	textActor->SetInput( bbGetInputIn().c_str()  );
-	textActor->SetPosition(  bbGetInputX(), bbGetInputY(),bbGetInputZ() );
+  // First time : creates the text actor and sets its text.
+  if (_textActor == NULL)
+    {
+	_textActor = vtkTextActor3D::New();
+	_textProp = vtkTextProperty::New();
 	if ( bbGetInputRenderer()!=NULL )
 	{
-		bbGetInputRenderer()->AddActor( textActor );
+		bbGetInputRenderer()->AddActor( _textActor );
 	}
+	_textProp->SetFontSize( 14 );
+	_textActor->SetTextProperty( _textProp  );
+    }
+  // If the text actor already exists in the scene, simply refresh its text.
+  else
+    {
+	_textProp->SetColor( bbGetInputColour()[0] , bbGetInputColour()[1], bbGetInputColour()[2] );
+
+	_textActor->SetInput( bbGetInputIn().c_str()  );
+	_textActor->SetPosition(  bbGetInputX(), bbGetInputY(),bbGetInputZ() );
 	
 	if ( bbGetInputTransform()!=NULL )
 	{
-		textActor->SetUserTransform( bbGetInputTransform() );
+		_textActor->SetUserTransform( bbGetInputTransform() );
 	}
 	
-	bbSetOutputOut(textActor);
-	
+	bbSetOutputOut(_textActor);
+    }
 }
+
 //===== 
 // Before editing this file, make sure it's a file of your own (i.e.: it wasn't generated from xml description; if so : your modifications will be lost)
 //===== 
@@ -61,7 +65,7 @@ void Text3D::bbUserSetDefaultValues()
 
 //  SET HERE THE DEFAULT INPUT/OUTPUT VALUES OF YOUR BOX 
 //    Here we initialize the input 'In' to 0
-   bbSetInputIn("<void>");
+        bbSetInputIn("<void>");
 	bbSetInputX(0);
 	bbSetInputY(0);
 	bbSetInputZ(0);
@@ -73,6 +77,9 @@ void Text3D::bbUserSetDefaultValues()
 	bbSetInputColour(colour);
 	bbSetInputRenderer(NULL);
 	bbSetInputTransform(NULL);
+
+	_textActor = NULL;
+	_textProp = NULL;
 }
 //===== 
 // Before editing this file, make sure it's a file of your own (i.e.: it wasn't generated from xml description; if so : your modifications will be lost)