Diff: main.cpp

Revision:

0:b3d9fc5861c6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Oct 12 16:49:30 2012 +0000
@@ -0,0 +1,118 @@
+
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "HTTPClient.h"
+#include "NokiaLCD.h"
+#include <string>
+
+EthernetInterface eth;
+HTTPClient client;
+DigitalOut indicatorLED(LED1);
+NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::LCD6610); // mosi, sclk, cs, rst, type
+char *str;
+char url[1024];
+
+int main() {
+    string text;
+    int background = 0x0000FF;
+    int squareColor = 0x00FF00;
+    int squareLength = 0;
+    
+    string previousID;
+    
+    eth.init();
+    eth.connect();
+    
+    str = (char *) malloc(8192);
+    
+    
+    while(1) {
+        int ret;
+        if(previousID.empty()) {
+            ret = client.get("http://api.supertweet.net/1.1/statuses/mentions_timeline.json?count=1", str, 4096);
+        } else {
+            sprintf(url, "http://api.supertweet.net/1.1/statuses/mentions_timeline.json?since_id=%s\0", previousID.c_str());
+            ret = client.get(url, str, 4096);
+        }
+        if (ret) {
+          printf("Error - ret = %d - HTTP return code = %d\n", ret, client.getHTTPResponseCode());
+          return 1;
+        }
+        
+        string tweetInfo(str);
+        string tweetCommand;
+        string tweetSetting;
+        size_t foundStart = string::npos;
+        if(tweetInfo.compare("[]")) {
+            foundStart = tweetInfo.rfind("\"text\":\"@");
+        }
+        size_t foundEnd;
+        while(foundStart != string::npos) {
+            foundStart += 24;
+            foundEnd = tweetInfo.find(" ",foundStart);
+            if(foundEnd != string::npos) {
+                tweetCommand = tweetInfo.substr(foundStart, foundEnd - foundStart);
+            } else {
+                continue;
+            }
+            foundStart = foundEnd + 1;
+            foundEnd = tweetInfo.find("\"",foundStart);
+            tweetSetting = tweetInfo.substr(foundStart, foundEnd - foundStart);
+            
+            printf("%s*%s*\n", tweetCommand.c_str(), tweetSetting.c_str());
+            
+            if(!tweetCommand.compare("background")) {
+                if(!tweetSetting.compare("blue")) {
+                    background = 0x0000FF;
+                    squareColor = 0x00FF00;
+                } else if(!tweetSetting.compare("green")) {
+                    background = 0x00FF00;
+                    squareColor = 0xFF0000;
+                } else if(!tweetSetting.compare("red")) {
+                    background = 0xFF0000;
+                    squareColor = 0x0000FF;
+                } else {
+                    text = "Invalid tweet setting";
+                }
+            } else if(!tweetCommand.compare("write")) {
+                text = tweetSetting;
+            } else if(!tweetCommand.compare("square")) {
+                squareLength = atoi(tweetSetting.c_str());
+            } else {
+                text = "Invalid tweet command";
+            }
+            
+            foundStart -= 60;
+            foundStart = tweetInfo.rfind("\"text\":\"@", foundStart);
+            printf("%d*%d*\n", foundStart, string::npos);
+        }
+        
+        lcd.cls();
+        lcd.fill(0, 0, 130, 130, background);
+        lcd.background(background);
+        lcd.locate(0, 7);
+        lcd.printf(text.c_str());
+        if(squareLength > 0) {
+            int i;
+            for(int i=65-(squareLength/2); i<65+(squareLength/2);i++) {
+                lcd.pixel(i, 65-(squareLength/2), squareColor);
+                lcd.pixel(i, 65+(squareLength/2), squareColor);
+            }
+            for(i=65-(squareLength/2); i<65+(squareLength/2);i++) {
+                lcd.pixel(65-(squareLength/2), i, squareColor);
+                lcd.pixel(65+(squareLength/2), i, squareColor);
+            }
+        }
+        
+        if(tweetInfo.compare("[]")) {
+            foundStart = tweetInfo.find("\"id_str\":\"");
+            foundStart += 10;
+            foundEnd = tweetInfo.find("\"", foundStart);
+            previousID = tweetInfo.substr(foundStart, foundEnd - foundStart);
+            printf("%s\n", previousID.c_str());
+        }
+        
+        wait(30);
+    }
+    
+}