From f2db3b2d3af91af2bcfb0623b722ae7be5adba04 Mon Sep 17 00:00:00 2001
From: yukun <yukun.chen@stud.hs-emden-leer.de>
Date: Thu, 19 Dec 2019 12:22:39 +0100
Subject: [PATCH] realisze the Linkshift and rightShift. Send a signal value
 -127 to the sharedmemory.

---
 main/main.cpp    | 11 +++++++++
 src/Terminal.cpp | 64 ++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 70 insertions(+), 5 deletions(-)

diff --git a/main/main.cpp b/main/main.cpp
index 205182d..2dee6ac 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -92,13 +92,24 @@ int main() {
             if(vkvm::KeyCode::Arrow_Left == keycode){
                 terminal.moveleft();
                 std::cout << terminal.getString() << std::endl;
+                vkvm::setText(terminal.getString());
+                vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
             if(vkvm::KeyCode::Arrow_Right == keycode){
                 terminal.moveright();
                 std::cout << terminal.getString() << std::endl;
+                vkvm::setText(terminal.getString());
+                vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
+//            if(vkvm::KeyCode::Arrow_Down == keycode){
+//                terminal.movedown();
+//                std::cout << terminal.getString() << std::endl;
+//                vkvm::setText(terminal.getString());
+//                vkvm::callEvent(vkvm::EventType::RenderText);
+//            }
+
 
 
 
diff --git a/src/Terminal.cpp b/src/Terminal.cpp
index 525644e..d71055f 100644
--- a/src/Terminal.cpp
+++ b/src/Terminal.cpp
@@ -2,6 +2,7 @@
 // Created by yukun on 29.11.19.
 //
 #include <iostream>
+#include <vector>
 #include "vkvm.hpp"
 #include "Terminal.h"
 
@@ -29,9 +30,8 @@ void Terminal::setString(char c) {
     }
     else{
         s = s + cursor;
-        std::cout << "else1 " + s << std::endl;
         s[s.length()-2] = c;
-        std::cout << "else2 " + s << std::endl;
+
 
     }
 }
@@ -41,9 +41,10 @@ void Terminal::subString(){
 //    s.erase(s.end() - 1);
 //    s.erase(s.end() - 1);
 //    s = s + cursor;
-    int i = s.find(cursor);
-    s.erase(i-1, 1);
-
+    if(s.length() > 1) {
+        int i = s.find(cursor);
+        s.erase(i - 1, 1);
+    }
 }
 
 void Terminal::shiftpressed() {
@@ -79,6 +80,59 @@ void Terminal::moveright() {
 }
 
 void Terminal::movedown() {
+    std::string news="";
+    int i = s.find(cursor);
+    s.erase(i, 1);
+
+    std::vector<std::vector<char>> vec(100,std::vector<char>(21,0));
+    for(int n = 0; n < 100; n++){
+        if(n*21 < s.length()) {
+            for (int m = 0; m < 21; m++) {
+                int sum = n * 21 + m;
+                if (s[sum] != '\n') {
+                    vec[n][m] = s[sum];
+                    std::cout<<"vec before" +  vec[n][m]<<std::endl;
+                }
+                else {
+                    vec[n][m] = s[sum];
+                    break;
+                }
+            }
+        }
+        else {
+            break;
+        }
+    }
+
+    int cursorrow = i / 21;
+    int cursorcolumn =i % 21;
+    std::cout<<"before" + std::to_string(cursorrow) + ' '+ std::to_string(cursorcolumn)<<std::endl;
+    if(vec[cursorrow+1].size() >= cursorcolumn){
+        cursorrow++;
+    }
+    else if(vec[cursorrow+1].size() >=1){
+        cursorrow++;
+        cursorcolumn = vec[cursorrow].size()-1;
+    }
+    std::cout<<"after" + std::to_string(cursorrow) + ' '+ std::to_string(cursorcolumn)<<std::endl;
+
+  for(int n = 0; n < 100; n++){
+      for(int m=0;m<21;m++){
+          if((n==cursorrow) && (m==cursorcolumn)){
+           news = news + cursor;
+          }
+          else if(vec[n][m] != '\n'){
+          std::cout<<"vec after" +  vec[n][m]<<std::endl;
+          news = news + vec[n][m];
+          }
+          else{
+              news = news + vec[n][m];
+              break;
+          }
+      }
+  }
+
+  std::cout<< news<<std::endl;
 
 }