Changeset 1313 for code/branches/console/src/core/Shell.cc

Timestamp:

May 17, 2008, 3:58:19 AM (16 years ago)

Author:

landauf

Message:

• implemented Shell, but not yet linked with the graphical console
• added new features (cursor, OIS::KeyCode listener) to InputBuffer
• changed some includes to avoid circular header-dependencies in OrxonoxClass and Shell

File:

• code/branches/console/src/core/Shell.cc (modified) (2 diffs)

code/branches/console/src/core/Shell.cc

@@ -27 +27 @@
  */
 
-#include "CorePrereqs.h"
-
-#include "OrxonoxClass.h"
-#include "InputBuffer.h"
-#include "OutputBuffer.h"
+#include "Shell.h"
+#include "CommandExecutor.h"
+#include "CoreIncludes.h"
+#include "ConfigValueIncludes.h"
+
+#define SHELL_UPDATE_LISTENERS(function) \
+    for (std::list<ShellListener*>::iterator it = this->listeners_.begin(); it != this->listeners_.end(); ++it) \
+        (*it)->function()
 
 namespace orxonox
@@ -37 +40 @@
     Shell::Shell()
     {
+        RegisterRootObject(Shell);
+
+        this->scrollPosition_ = 0;
+        this->maxHistoryLength_ = 100;
+        this->historyPosition_ = 0;
+        this->historyOffset_ = 0;
+
+        this->clearLines();
+
         this->inputBuffer_.registerListener(this, &Shell::inputChanged, true);
         this->inputBuffer_.registerListener(this, &Shell::execute, '\r', false);
         this->inputBuffer_.registerListener(this, &Shell::hintandcomplete, '\t', true);
-        this->inputBuffer_.registerListener(this, &Shell::clear, '§', true);
         this->inputBuffer_.registerListener(this, &Shell::backspace, '\b', true);
+        this->inputBuffer_.registerListener(this, &Shell::deletechar, OIS::KC_DELETE);
         this->inputBuffer_.registerListener(this, &Shell::exit, (char)27, true);
         this->inputBuffer_.registerListener(this, &Shell::cursor_right, OIS::KC_RIGHT);
         this->inputBuffer_.registerListener(this, &Shell::cursor_left, OIS::KC_LEFT);
+        this->inputBuffer_.registerListener(this, &Shell::cursor_end, OIS::KC_END);
+        this->inputBuffer_.registerListener(this, &Shell::cursor_home, OIS::KC_HOME);
         this->inputBuffer_.registerListener(this, &Shell::history_up, OIS::KC_UP);
         this->inputBuffer_.registerListener(this, &Shell::history_down, OIS::KC_DOWN);
         this->inputBuffer_.registerListener(this, &Shell::scroll_up, OIS::KC_PGUP);
         this->inputBuffer_.registerListener(this, &Shell::scroll_down, OIS::KC_PGDOWN);
+
+        this->setConfigValues();
     }
 
     Shell& Shell::getInstance()
     {
-        static instance Shell;
+        static Shell instance;
         return instance;
     }
 
     void Shell::setConfigValues()
+    {
+        SetConfigValue(maxHistoryLength_, 100);
+        SetConfigValue(historyOffset_, 0);
+        SetConfigValueVector(commandHistory_, std::vector<std::string>(1, ""));
+
+        if (this->historyOffset_ >= this->maxHistoryLength_)
+            this->historyOffset_ = 0;
+
+        while (this->commandHistory_.size() > this->maxHistoryLength_)
+        {
+            unsigned int index = this->commandHistory_.size() - 1;
+            this->commandHistory_.erase(this->commandHistory_.begin() + index);
+            ModifyConfigValue(commandHistory_, remove, index);
+        }
+    }
+
+    void Shell::registerListener(ShellListener* listener)
+    {
+        this->listeners_.insert(this->listeners_.end(), listener);
+    }
+
+    void Shell::unregisterListener(ShellListener* listener)
+    {
+        for (std::list<ShellListener*>::iterator it = this->listeners_.begin(); it != this->listeners_.end(); )
+        {
+            if ((*it) == listener)
+                this->listeners_.erase(it++);
+            else
+                ++it;
+        }
+    }
+
+    void Shell::setCursorPosition(unsigned int cursor)
+    {
+        this->inputBuffer_.setCursorPosition(cursor);
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
+    void Shell::setInput(const std::string& input)
+    {
+        this->inputBuffer_.set(input);
+        this->inputChanged();
+    }
+
+    void Shell::addLine(const std::string& line, unsigned int level)
+    {
+        if ((*this->lines_.begin()) != "")
+        {
+            orxonox::OutputHandler::getOutStream().setOutputLevel(level) << std::endl;
+        }
+        orxonox::OutputHandler::getOutStream().setOutputLevel(level) << line << std::endl;
+    }
+
+    void Shell::clearLines()
+    {
+        this->lines_.clear();
+        this->lines_.insert(this->lines_.begin(), "");
+        this->scrollIterator_ = this->lines_.begin();
+
+        this->scrollPosition_ = 0;
+
+        SHELL_UPDATE_LISTENERS(linesChanged);
+    }
+
+    std::list<std::string>::const_iterator Shell::getNewestLineIterator() const
+    {
+        if (this->scrollPosition_)
+            return this->scrollIterator_;
+        else
+            return this->lines_.begin();
+    }
+
+    std::list<std::string>::const_iterator Shell::getEndIterator() const
+    {
+        return this->lines_.end();
+    }
+
+    void Shell::addToHistory(const std::string& command)
+    {
+        this->historyOffset_ = (this->historyOffset_ + 1) % this->maxHistoryLength_;
+        ModifyConfigValue(commandHistory_, set, this->historyOffset_, command);
+        this->commandHistory_[this->historyOffset_] = command;
+        this->historyPosition_ = 0;
+    }
+
+    std::string Shell::getFromHistory() const
+    {
+        return this->commandHistory_[(this->historyOffset_ - this->historyPosition_) % this->maxHistoryLength_];
+    }
 
     void Shell::outputChanged()
+    {
+        std::string output;
+        while (this->outputBuffer_.getLine(&output))
+        {
+            (*this->lines_.begin()) += output;
+            this->lines_.insert(this->lines_.begin(), "");
+
+            if (this->scrollPosition_)
+                this->scrollPosition_++;
+            else
+                this->scrollIterator_ = this->lines_.begin();
+
+            SHELL_UPDATE_LISTENERS(linesChanged);
+            SHELL_UPDATE_LISTENERS(lineAdded);
+        }
+
+        (*this->lines_.begin()) += output;
+        SHELL_UPDATE_LISTENERS(onlyLastLineChanged);
+    }
+
     void Shell::inputChanged()
+    {
+        SHELL_UPDATE_LISTENERS(inputChanged);
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
     void Shell::execute()
+    {
+        if (CommandExecutor::execute(this->inputBuffer_.get()))
+            this->addLine(this->inputBuffer_.get(), 0);
+        else
+            this->addLine("Error: Can't execute \"" + this->inputBuffer_.get() + "\".", 1);
+
+        this->clear();
+    }
+
     void Shell::hintandcomplete()
+    {
+        this->addLine(CommandExecutor::hint(this->inputBuffer_.get()), 0);
+        this->inputBuffer_.set(CommandExecutor::complete(this->inputBuffer_.get()));
+
+        this->inputChanged();
+    }
+
     void Shell::backspace()
+    {
+        this->inputBuffer_.removeBehindCursor();
+        SHELL_UPDATE_LISTENERS(inputChanged);
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
+    void Shell::deletechar()
+    {
+        this->inputBuffer_.removeAtCursor();
+        SHELL_UPDATE_LISTENERS(inputChanged);
+    }
+
     void Shell::clear()
+    {
+        this->inputBuffer_.clear();
+        SHELL_UPDATE_LISTENERS(inputChanged);
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
     void Shell::cursor_right()
+    {
+        this->inputBuffer_.increaseCursor();
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
     void Shell::cursor_left()
+    {
+        this->inputBuffer_.decreaseCursor();
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
+    void Shell::cursor_end()
+    {
+        this->inputBuffer_.setCursorToEnd();
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
+    void Shell::cursor_home()
+    {
+        this->inputBuffer_.setCursorToBegin();
+        SHELL_UPDATE_LISTENERS(cursorChanged);
+    }
+
     void Shell::history_up()
+    {
+        if (this->historyPosition_ < (this->commandHistory_.size() - 1))
+        {
+            this->historyPosition_++;
+            this->inputBuffer_.set(this->getFromHistory());
+        }
+    }
+
     void Shell::history_down()
+    {
+        if (this->historyPosition_ > 0)
+        {
+            this->historyPosition_++;
+            this->inputBuffer_.set(this->getFromHistory());
+        }
+    }
+
     void Shell::scroll_up()
+    {
+        if (this->scrollIterator_ != this->lines_.end())
+        {
+            ++this->scrollIterator_;
+            ++this->scrollPosition_;
+
+            SHELL_UPDATE_LISTENERS(linesChanged);
+        }
+    }
+
     void Shell::scroll_down()
+    {
+        if (this->scrollIterator_ != this->lines_.begin())
+        {
+            --this->scrollIterator_;
+            --this->scrollPosition_;
+
+            SHELL_UPDATE_LISTENERS(linesChanged);
+        }
+    }
+
     void Shell::exit()
+    {
+        if (this->inputBuffer_.getSize() > 0)
+        {
+            this->clear();
+            return;
+        }
+
+        this->clear();
+        SHELL_UPDATE_LISTENERS(exit);
+    }
 }