Add remote control server example

example_remote-server/Makefile

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+# Attempt to load a config.make file.
+# If none is found, project defaults in config.project.make will be used.
+ifneq ($(wildcard config.make),)
+	include config.make
+endif
+
+# make sure the the OF_ROOT location is defined
+ifndef OF_ROOT
+    OF_ROOT=$(realpath ../../..)
+endif
+
+# call the project makefile!
+include $(OF_ROOT)/libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk

example_remote-server/addons.make

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+ofxGui
+ofxJSON
+ofxNetwork
+ofxOpenCv
+ofxPiMapper
+ofxXmlSettings

example_remote-server/bin/data/ofxpimapper.xml

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+<surfaces>
+    <surface type="0">
+        <vertices>
+            <vertex>
+                <x>640.000000000</x>
+                <y>50.000000000</y>
+            </vertex>
+            <vertex>
+                <x>1230.000000000</x>
+                <y>750.000000000</y>
+            </vertex>
+            <vertex>
+                <x>50.000000000</x>
+                <y>750.000000000</y>
+            </vertex>
+        </vertices>
+        <texCoords>
+            <texCoord>
+                <x>0.500000000</x>
+                <y>0.000000000</y>
+            </texCoord>
+            <texCoord>
+                <x>1.000000000</x>
+                <y>1.000000000</y>
+            </texCoord>
+            <texCoord>
+                <x>0.000000000</x>
+                <y>1.000000000</y>
+            </texCoord>
+        </texCoords>
+        <source>
+            <source-type>video</source-type>
+            <source-name>gene-nsynthesis-loop-b.mp4</source-name>
+        </source>
+    </surface>
+</surfaces>

example_remote-server/bin/data/sources/videos/gene-nsynthesis-loop-b.mp4

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+version https://git-lfs.github.com/spec/v1
+oid sha256:2da7b85225116bee7e1ae5275f58cca7684c2a5d013b97bdd46955c2c418a812
+size 2045077

example_remote-server/config.make

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+################################################################################
+# CONFIGURE PROJECT MAKEFILE (optional)
+#   This file is where we make project specific configurations.
+################################################################################
+
+################################################################################
+# OF ROOT
+#   The location of your root openFrameworks installation
+#       (default) OF_ROOT = ../../.. 
+################################################################################
+# OF_ROOT = ../../..
+
+################################################################################
+# PROJECT ROOT
+#   The location of the project - a starting place for searching for files
+#       (default) PROJECT_ROOT = . (this directory)
+#    
+################################################################################
+# PROJECT_ROOT = .
+
+################################################################################
+# PROJECT SPECIFIC CHECKS
+#   This is a project defined section to create internal makefile flags to 
+#   conditionally enable or disable the addition of various features within 
+#   this makefile.  For instance, if you want to make changes based on whether
+#   GTK is installed, one might test that here and create a variable to check. 
+################################################################################
+# None
+
+################################################################################
+# PROJECT EXTERNAL SOURCE PATHS
+#   These are fully qualified paths that are not within the PROJECT_ROOT folder.
+#   Like source folders in the PROJECT_ROOT, these paths are subject to 
+#   exlclusion via the PROJECT_EXLCUSIONS list.
+#
+#     (default) PROJECT_EXTERNAL_SOURCE_PATHS = (blank) 
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_EXTERNAL_SOURCE_PATHS = 
+
+################################################################################
+# PROJECT EXCLUSIONS
+#   These makefiles assume that all folders in your current project directory 
+#   and any listed in the PROJECT_EXTERNAL_SOURCH_PATHS are are valid locations
+#   to look for source code. The any folders or files that match any of the 
+#   items in the PROJECT_EXCLUSIONS list below will be ignored.
+#
+#   Each item in the PROJECT_EXCLUSIONS list will be treated as a complete 
+#   string unless teh user adds a wildcard (%) operator to match subdirectories.
+#   GNU make only allows one wildcard for matching.  The second wildcard (%) is
+#   treated literally.
+#
+#      (default) PROJECT_EXCLUSIONS = (blank)
+#
+#		Will automatically exclude the following:
+#
+#			$(PROJECT_ROOT)/bin%
+#			$(PROJECT_ROOT)/obj%
+#			$(PROJECT_ROOT)/%.xcodeproj
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_EXCLUSIONS =
+
+################################################################################
+# PROJECT LINKER FLAGS
+#	These flags will be sent to the linker when compiling the executable.
+#
+#		(default) PROJECT_LDFLAGS = -Wl,-rpath=./libs
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+
+# Currently, shared libraries that are needed are copied to the 
+# $(PROJECT_ROOT)/bin/libs directory.  The following LDFLAGS tell the linker to
+# add a runtime path to search for those shared libraries, since they aren't 
+# incorporated directly into the final executable application binary.
+# TODO: should this be a default setting?
+# PROJECT_LDFLAGS=-Wl,-rpath=./libs
+
+################################################################################
+# PROJECT DEFINES
+#   Create a space-delimited list of DEFINES. The list will be converted into 
+#   CFLAGS with the "-D" flag later in the makefile.
+#
+#		(default) PROJECT_DEFINES = (blank)
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_DEFINES = 
+
+################################################################################
+# PROJECT CFLAGS
+#   This is a list of fully qualified CFLAGS required when compiling for this 
+#   project.  These CFLAGS will be used IN ADDITION TO the PLATFORM_CFLAGS 
+#   defined in your platform specific core configuration files. These flags are
+#   presented to the compiler BEFORE the PROJECT_OPTIMIZATION_CFLAGS below. 
+#
+#		(default) PROJECT_CFLAGS = (blank)
+#
+#   Note: Before adding PROJECT_CFLAGS, note that the PLATFORM_CFLAGS defined in 
+#   your platform specific configuration file will be applied by default and 
+#   further flags here may not be needed.
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_CFLAGS = 
+
+################################################################################
+# PROJECT OPTIMIZATION CFLAGS
+#   These are lists of CFLAGS that are target-specific.  While any flags could 
+#   be conditionally added, they are usually limited to optimization flags. 
+#   These flags are added BEFORE the PROJECT_CFLAGS.
+#
+#   PROJECT_OPTIMIZATION_CFLAGS_RELEASE flags are only applied to RELEASE targets.
+#
+#		(default) PROJECT_OPTIMIZATION_CFLAGS_RELEASE = (blank)
+#
+#   PROJECT_OPTIMIZATION_CFLAGS_DEBUG flags are only applied to DEBUG targets.
+#
+#		(default) PROJECT_OPTIMIZATION_CFLAGS_DEBUG = (blank)
+#
+#   Note: Before adding PROJECT_OPTIMIZATION_CFLAGS, please note that the 
+#   PLATFORM_OPTIMIZATION_CFLAGS defined in your platform specific configuration 
+#   file will be applied by default and further optimization flags here may not 
+#   be needed.
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_OPTIMIZATION_CFLAGS_RELEASE = 
+# PROJECT_OPTIMIZATION_CFLAGS_DEBUG = 
+
+################################################################################
+# PROJECT COMPILERS
+#   Custom compilers can be set for CC and CXX
+#		(default) PROJECT_CXX = (blank)
+#		(default) PROJECT_CC = (blank)
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_CXX = 
+# PROJECT_CC = 

example_remote-server/src/TCPServer.cpp

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+#include "TCPServer.h"
+
+shared_ptr<TCPServer> TCPServer::_instance = 0;
+
+shared_ptr<TCPServer> TCPServer::instance(){
+	if(_instance == 0){
+		_instance = shared_ptr<TCPServer>(new TCPServer);
+	}
+	return _instance;
+}
+
+TCPServer::TCPServer(){
+	std::cout << "TCPServer initialized" << std::endl;
+}
+
+void TCPServer::setup(int port){
+	_tcpServer.setup(port);
+}
+
+void TCPServer::update(){
+	int numClients = _tcpServer.getLastID();
+	for(auto i = 0; i < numClients; ++i){
+		if(_tcpServer.isClientConnected(i)){
+			
+			// Notify application when new client connects
+			if(!_tcpConnections[i]){
+				ofxJSONElement json;
+				json["ip"] = _tcpServer.getClientIP(i);
+				json["port"] = _tcpServer.getClientPort(i);
+				json["id"] = i;
+				json["event"] = "connected";
+
+				ofMessage message(json.getRawString());
+				ofSendMessage(message);
+				
+				_tcpConnections[i] = true;
+			}
+			
+			// Receive messages
+			string rx = _tcpServer.receive(i);
+			if(rx.length() > 0){
+				ofxJSONElement json;
+				bool ok = json.parse(rx);
+				
+				if(!ok){
+					json["ip"] = _tcpServer.getClientIP(i);
+					json["port"] = _tcpServer.getClientPort(i);
+					json["id"] = i;
+					json["event"] = "received";
+					json["data"] = rx;
+				}
+			
+				ofMessage message(json.getRawString());
+				ofSendMessage(message);
+			}
+		}else{
+		
+			// Notify application when client disconnects
+			if(_tcpConnections[i]){
+				ofxJSONElement json;
+				json["ip"] = _tcpServer.getClientIP(i);
+				json["port"] = _tcpServer.getClientPort(i);
+				json["id"] = i;
+				json["event"] = "disconnected";
+				
+				ofMessage message(json.getRawString());
+				ofSendMessage(message);
+				
+				_tcpConnections[i] = false;
+			}
+		}
+	}
+}
+
+void TCPServer::draw(){
+	int numClients = _tcpServer.getLastID();
+	int clientsConnected = 0;
+	for(auto i = 0; i < numClients; ++i){
+		if(_tcpServer.isClientConnected(i)){
+			ofSetColor(0, 255, 0);
+			ofPushMatrix();
+			ofTranslate(10, 10);
+			ofDrawRectangle(clientsConnected * 20, 0, 10, 10);
+			ofPopMatrix();
+			clientsConnected++;
+		}
+	}
+}
+
+void TCPServer::send(int clientID, std::string message){
+	_tcpServer.send(clientID, message);
+}
+

example_remote-server/src/TCPServer.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include "ofMain.h"
+#include "ofxNetwork.h"
+#include "ofxJSONElement.h"
+
+class TCPServer {
+public:
+	static shared_ptr<TCPServer> instance();
+
+	void setup(int port);
+	void update();
+	void draw();
+	
+	void send(int clientID, std::string message);
+	
+private:
+	TCPServer();
+	static shared_ptr<TCPServer> _instance;
+
+	ofxTCPServer _tcpServer;
+	std::map<int, bool> _tcpConnections;
+};

example_remote-server/src/main.cpp

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+#include "ofMain.h"
+#include "ofApp.h"
+
+int main(){
+	ofSetupOpenGL(1280, 800, OF_WINDOW);
+	ofRunApp(new ofApp());
+}

example_remote-server/src/ofApp.cpp

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+#include "ofApp.h"
+
+void ofApp::setup(){
+	ofBackground(0);
+	mapper.setup();
+	TCPServer::instance()->setup(9999);
+	
+#ifdef TARGET_RASPBERRY_PI
+	ofSetFullscreen(true);
+#endif
+}
+
+void ofApp::update(){
+	mapper.update();
+	TCPServer::instance()->update();
+}
+
+void ofApp::draw(){
+	mapper.draw();
+	TCPServer::instance()->draw();
+}
+
+// Here is where we process messages received from TCPServer instance
+void ofApp::gotMessage(ofMessage m){
+	std::cout << m.message << std::endl;
+	
+	ofxJSONElement json;
+	bool ok = json.parse(m.message);
+	if(ok){
+		if(json["event"].asString() == "connected"){
+			// Save Mapper composition and get config as string
+			std::cout << "Sending mapper config" << std::endl;
+			mapper.saveProject();
+			
+			ofFile file;
+			file.open(ofToDataPath("ofxpimapper.xml"), ofFile::ReadOnly, false);
+			ofBuffer buff = file.readToBuffer();
+			string text = buff.getText();
+			
+			TCPServer::instance()->send(json["id"].asInt(), text);
+		}
+		
+		if(json["event"].asString() == "keyPressed"){
+			mapper.keyPressed(json["key"].asInt());
+		}
+		
+		if(json["event"].asString() == "keyReleased"){
+			mapper.keyReleased(json["key"].asInt());
+		}
+		
+		if(json["event"].asString() == "mousePressed"){
+			mapper.mousePressed(json["x"].asInt(), json["y"].asInt(), json["button"].asInt());
+		}
+		
+		if(json["event"].asString() == "mouseReleased"){
+			mapper.mouseReleased(json["x"].asInt(), json["y"].asInt(), json["button"].asInt());
+		}
+		
+		if(json["event"].asString() == "mouseDragged"){
+			mapper.mouseDragged(json["x"].asInt(), json["y"].asInt(), json["button"].asInt());
+		}
+	}
+}
+
+void ofApp::keyPressed(int key){
+	mapper.keyPressed(key);
+}
+
+void ofApp::keyReleased(int key){
+	mapper.keyReleased(key);
+}
+
+void ofApp::mousePressed(int x, int y, int button){
+	mapper.mousePressed(x, y, button);
+}
+
+void ofApp::mouseReleased(int x, int y, int button){
+	mapper.mouseReleased(x, y, button);
+}
+
+void ofApp::mouseDragged(int x, int y, int button){
+	mapper.mouseDragged(x, y, button);
+}
+

example_remote-server/src/ofApp.h

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+#pragma once
+
+#include "ofMain.h"
+#include "TCPServer.h"
+#include "ofxPiMapper.h"
+#include "ofxJSONElement.h"
+
+class ofApp : public ofBaseApp{
+public:
+	void setup();
+	void update();
+	void draw();
+	
+	void gotMessage(ofMessage m);
+	
+	void keyPressed(int key);
+	void keyReleased(int key);
+	void mousePressed(int x, int y, int button);
+	void mouseReleased(int x, int y, int button);
+	void mouseDragged(int x, int y, int button);
+	
+	ofxPiMapper mapper;
+};