spawning points

vtk/src/helperClasses/Program.cpp

@@ -1,8 +1,10 @@
 #include <vtkRenderWindow.h>
 #include <vtkNew.h>
 #include <vtkCallbackCommand.h>
+#include <vtkInteractorStyleUser.h>
 
 #include "Program.h"
+#include "SpawnPointCallback.h"
 
 
 void Program::setWinProperties() {
@@ -13,6 +15,8 @@ void Program::setWinProperties() {
   this->interact->SetRenderWindow(this->win);
   this->interact->Initialize();
 
+  vtkNew<vtkInteractorStyleUser> style;
+  interact->SetInteractorStyle(style);
 }
 
 void Program::CallbackFunction(vtkObject* caller, long unsigned int eventId, void* clientData, void* callData) {
@@ -20,7 +24,6 @@ void Program::CallbackFunction(vtkObject* caller, long unsigned int eventId, voi
   ((Program *)clientData)->win->Render();
 }
 
-
 void Program::setupTimer() {
   vtkNew<vtkCallbackCommand> callback;
   callback->SetCallback(this->CallbackFunction);
@@ -29,7 +32,6 @@ void Program::setupTimer() {
   this->interact->CreateRepeatingTimer(17); // 60 fps == 1000 / 60 == 16.7 ms per frame
 }
 
-
 Program::Program(Layer *bg, Layer *e, Layer *l) : background(bg), euler(e), lagrange(l), win(), interact() {
   this->win = vtkSmartPointer<vtkRenderWindow>::New();
   this->interact = vtkSmartPointer<vtkRenderWindowInteractor>::New();
@@ -64,7 +66,11 @@ void Program::setLagrange(Layer *l) {
   this->win->AddRenderer(l->getLayer());
 }
 
-// void Program::addInteractionStyle(vtkInteractorStyle style);
+void Program::setLagrangeInteractor(SpawnPointCallback *cb){
+    interact->AddObserver(vtkCommand::LeftButtonPressEvent, cb);
+    interact->AddObserver(vtkCommand::LeftButtonReleaseEvent, cb);
+    interact->AddObserver(vtkCommand::MouseMoveEvent, cb);
+}
 
 
 void Program::render() {