From defc13fb606caed80a67ebddadcb72f5dfbc9c53 Mon Sep 17 00:00:00 2001
From: jose guzman <jose@gmail.com>
Date: Fri, 2 Oct 2015 10:18:35 +0200
Subject: [PATCH] double click example updates

---
 appli/examples/example_Test_DoubleClick.cxx | 49 +++++++++++++++++----
 1 file changed, 41 insertions(+), 8 deletions(-)

diff --git a/appli/examples/example_Test_DoubleClick.cxx b/appli/examples/example_Test_DoubleClick.cxx
index bf357d2..db795e5 100644
--- a/appli/examples/example_Test_DoubleClick.cxx
+++ b/appli/examples/example_Test_DoubleClick.cxx
@@ -15,6 +15,10 @@
 #else
 #endif
 
+#if __cplusplus > 199711L
+#include <chrono>
+#endif
+
 // Define interaction style
 class MouseInteractorStyleDoubleClick : public vtkInteractorStyleTrackballCamera
 {
@@ -43,10 +47,25 @@ public:
 		if (this->NumberOfClicks > 1)
 		{
 			this->LastClickTime = this->CurrentClickTime;
-			this->CurrentClickTime = time(0);
-		} else
+#if __cplusplus <= 199711L
+			this->CurrentClickTime = time(0) * 1000;
+#else
+			this->CurrentClickTime = std::chrono::duration_cast<std::chrono::milliseconds>(
+				std::chrono::system_clock::now().time_since_epoch()
+				);
+#endif
+
+		}
+		else
 		{
-			this->CurrentClickTime = time(0);
+#if __cplusplus <= 199711L
+			this->CurrentClickTime = time(0) * 1000;
+#else
+			this->CurrentClickTime = std::chrono::duration_cast<std::chrono::milliseconds>(
+				std::chrono::system_clock::now().time_since_epoch()
+				);
+
+#endif
 		}
 
 		//std::cout << "NumberOfClicks = " << this->NumberOfClicks << std::endl;
@@ -70,29 +89,43 @@ public:
 
 		if (this->NumberOfClicks == 2)
 		{
-			double  seconds = difftime(this->CurrentClickTime, this->LastClickTime);
-			if (seconds * 1000 <= this->DoubleClickTolerance)
+			double  seconds;
+#if __cplusplus <= 199711L
+			seconds = difftime(this->CurrentClickTime, this->LastClickTime);
+#else
+			seconds = this->CurrentClickTime - this->LastClickTime;
+#endif
+			
+			if (seconds <= this->DoubleClickTolerance)
 			{
 				std::cout << "Double clicked. with " << seconds << " of diference" << std::endl;
 				this->NumberOfClicks = 0;
-			} else
+			}
+			else
 			{
 				std::cout << "Too slow to be considered as a double click" << std::endl;
 				this->NumberOfClicks = 1;
-			}			
-			
+			}
 		}
 		// forward events
 		vtkInteractorStyleTrackballCamera::OnLeftButtonDown();
 	}
 
+
+
 private:
 	unsigned int NumberOfClicks;
 	int PreviousPosition[2];
 	int ResetPixelDistance;
 	double DoubleClickTolerance; // time in miliseconds
+
+#if __cplusplus <= 199711L	
 	time_t LastClickTime;
 	time_t CurrentClickTime;
+#else
+	std::chrono::milliseconds LastClickTime;
+	std::chrono::milliseconds CurrentClickTime;
+#endif
 };
 vtkStandardNewMacro(MouseInteractorStyleDoubleClick);
 
-- 
2.47.1