From 4aeb8751982d90ba65f04cdbc08eb0dc19be9357 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pierre=20B=C3=BCrki?= <pierre.burki@he-arc.ch>
Date: Tue, 7 Jul 2020 14:12:54 +0200
Subject: [PATCH] Create basic file watcher

---
 src/ofApp.cpp | 61 ++++++++++++++++++++++++++++++++++++---------------
 src/ofApp.h   | 12 ++++++++--
 2 files changed, 53 insertions(+), 20 deletions(-)

diff --git a/src/ofApp.cpp b/src/ofApp.cpp
index b37e69f..b5bf671 100644
--- a/src/ofApp.cpp
+++ b/src/ofApp.cpp
@@ -179,6 +179,8 @@ void ofApp::setup(){
     capMesh.reSize(4);
     
 	ofLog(OF_LOG_NOTICE) << "Setup over";
+
+	lastSettingsWriteTime = boost::filesystem::last_write_time(networkSettingsPath);
 }
 
 //--------------------------------------------------------------
@@ -247,6 +249,8 @@ void ofApp::update(){
 
 	ofBackground(100, 100, 100);
 
+	checkSettingsUpdate();
+
 #ifdef BLOB
 	if(realSense->update(ofxRealSenseTwo::PointCloud::VIDEO)) {
 
@@ -271,6 +275,43 @@ void ofApp::update(){
 	networkMng.update(tracker);
 }
 
+void ofApp::saveSettings()
+{
+	tracker.panel->saveToFile("trackings.xml");
+	networkMng.panel->saveToFile("broadcast.xml");
+	guitransform->saveToFile("transformation.xml");
+
+#ifdef BLOB
+	tracker.saveMask();
+	post->saveToFile("postprocessing.xml");
+	device->saveToFile(realSense->getSerialNumber(-1) + ".xml");
+#endif
+}
+
+void ofApp::loadSettings()
+{
+	tracker.panel->loadFromFile("trackings.xml");
+	networkMng.panel->loadFromFile("broadcast.xml");
+	guitransform->loadFromFile("transformation.xml");
+	reloadTransformMatrix();
+#ifdef BLOB
+	tracker.loadMask();
+	post->loadFromFile("postprocessing.xml");
+	// This seems to make the app crash on Linux
+	//device->loadFromFile(realSense->getSerialNumber(-1) + ".xml");
+#endif
+}
+
+void ofApp::checkSettingsUpdate() {
+	std::time_t newLastWriteTime = boost::filesystem::last_write_time(networkSettingsPath);
+
+	if (newLastWriteTime > lastSettingsWriteTime) {
+		lastSettingsWriteTime = newLastWriteTime;
+
+		loadSettings();
+	}
+}
+
 void ofApp::draw() {
 	ofSetColor(255, 255, 255);
 
@@ -444,27 +485,11 @@ void ofApp::keyPressed(int key){
             break;
  
         case 's':
-            tracker.panel->saveToFile("trackings.xml");
-			networkMng.panel->saveToFile("broadcast.xml");
-			guitransform->saveToFile("transformation.xml");
-#ifdef BLOB
-			tracker.saveMask();
-			post->saveToFile("postprocessing.xml");
-			device->saveToFile(realSense->getSerialNumber(-1) + ".xml");
-#endif
+            saveSettings();
 			break;
 
         case 'l':
-            tracker.panel->loadFromFile("trackings.xml");
-            networkMng.panel->loadFromFile("broadcast.xml");
-			guitransform->loadFromFile("transformation.xml");
-			reloadTransformMatrix();
-#ifdef BLOB
-			tracker.loadMask();
-			post->loadFromFile("postprocessing.xml");
-			// This seems to make the app crash on Linux
-			//device->loadFromFile(realSense->getSerialNumber(-1) + ".xml");
-#endif
+            loadSettings();
 			break;
            
 		case 'h':
diff --git a/src/ofApp.h b/src/ofApp.h
index b269f56..11315b1 100644
--- a/src/ofApp.h
+++ b/src/ofApp.h
@@ -11,6 +11,7 @@
 #include "Frustum.h"
 #include "CaptureMeshArray.h"
 #include "PointCloudManager.h"
+#include <ofMatrix4x4.h>
 
 #include "DetectionMethod.h"
 #ifdef BLOB
@@ -23,7 +24,7 @@
     #include "SkeletonFinder.h"
 #endif
 
-#include <ofMatrix4x4.h>
+#include <boost/filesystem/operations.hpp>
 
 #define N_CAMERAS 3
 
@@ -165,7 +166,14 @@ public:
     ofParameter<float> pixelSizeCorrector;
     ofParameter<int> blobGrain;
     ofParameter<bool> captureVideo;
-    
+
+    void saveSettings();
+    void loadSettings();
+
+    void checkSettingsUpdate();
+    const boost::filesystem::path networkSettingsPath = ofFilePath::getAbsolutePath("broadcast.xml");
+    std::time_t lastSettingsWriteTime;    
+
     //////////
     // HELP //
     //////////
-- 
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