Changeset 5243 in orxonox.OLD for trunk/src/lib/shell/shell_input.cc

Timestamp:

Sep 24, 2005, 7:43:08 PM (19 years ago)

Author:

bensch

Message:

orxonox/trunk: now it is possible to get old commands from the List

File:

• trunk/src/lib/shell/shell_input.cc (modified) (5 diffs)

trunk/src/lib/shell/shell_input.cc

@@ -48 +48 @@
   this->inputLine = new char[1];
   this->inputLine[0] = '\0';
-  this->inputHistory = new tList<char>;
+  this->history = new tList<char>;
+  this->historyIT = this->history->getIterator();
+  this->historyLength = 10;
+  this->historyScrolling = false;
   this->delayed = 0;
   this->setRepeatDelay(.3, .05);
@@ -69 +72 @@
   delete this->completion;
 
-  tIterator<char>* itH = this->inputHistory->getIterator();
-  char* histEl = itH->firstElement();
+  char* histEl = this->historyIT->firstElement();
   while (histEl != NULL)
   {
     delete[] histEl;
-    histEl = itH->nextElement();
-  }
-  delete itH;
-  delete this->inputHistory;
+    histEl = this->historyIT->nextElement();
+  }
+  delete this->historyIT;
+  delete this->history;
 }
 
@@ -164 +166 @@
   char* newCommand = new char[strlen(this->inputLine)+1];
   strcpy(newCommand, this->inputLine);
-  this->inputHistory->add(newCommand);
+
+  // removing the eventually added Entry (from scrolling) to the List
+  if (this->historyScrolling)
+  {
+    delete[] this->history->lastElement();
+    this->historyScrolling = false;
+  }
+
+  // adding the new Command to the History
+  this->history->add(newCommand);
+  if (this->history->getSize() > this->historyLength)
+  {
+    delete[] this->history->firstElement();
+    this->history->remove(this->history->firstElement());
+  }
 
   ShellCommandBase::execute(this->inputLine);
@@ -171 +187 @@
 
   return false;
+}
+
+
+/**
+ * moves one entry up in the history.
+ */
+void ShellInput::historyMoveUp()
+{
+  if (!this->historyScrolling)
+  {
+    char* newCommand = new char[strlen(this->inputLine)+1];
+    strcpy(newCommand, this->inputLine);
+    this->history->add(newCommand);
+    this->historyScrolling = true;
+    this->historyIT->lastElement();
+  }
+
+  char* prevElem = this->historyIT->prevStep();
+  if (prevElem == NULL)
+    return;
+  else
+  {
+    this->flush();
+    this->addCharacters(prevElem);
+  }
+
+}
+
+/**
+ * moves one entry down in the history
+ */
+void ShellInput::historyMoveDown()
+{
+  if (!this->historyScrolling)
+    return;
+  char* nextElem = this->historyIT->nextStep();
+  if (nextElem == NULL)
+    return;
+  else
+  {
+    this->flush();
+    this->addCharacters(nextElem);
+  }
 }
 
@@ -228 +287 @@
     else if (event.type == SDLK_F2)
       this->debug();
+    else if (event.type == SDLK_UP)
+      this->historyMoveUp();
+    else if (event.type == SDLK_DOWN)
+      this->historyMoveDown();
     else if (event.type == SDLK_TAB)
       this->completion->autoComplete();