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/*
Copyright (C) 2003 by Walter Schreppers
Copyright (C) 2004 by Cies Breijs
This program is free software; you can redistribute it and/or
modify it under the terms of version 2 of the GNU General Public
License as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef _EXECUTER_H_
#define _EXECUTER_H_
#include <stack>
#include <map>
#include "token.h"
#include "treenode.h"
typedef map<QString,Value> symtable;
typedef map<QString,TreeNode*> functable;
typedef stack<Value> runstack;
class Executer : public QObject
{
Q_OBJECT
public:
Executer(TreeNode*);
virtual ~Executer();
bool run();
void pause();
void abort();
signals:
void Finished();
void ErrorMsg(Token&, const QString&, uint code);
void setSelection(uint, uint, uint, uint);
void InputDialog(QString& value);
void MessageDialog(QString text);
void Clear();
void Go(double x, double y);
void GoX(double x);
void GoY(double y);
void Forward(double x);
void Backward(double x);
void Direction(double x);
void TurnLeft(double x);
void TurnRight(double x);
void Center();
void SetPenWidth(int w);
void PenUp();
void PenDown();
void SetFgColor(int r, int g, int b);
void SetBgColor(int r, int g, int b);
void ResizeCanvas(int x, int y);
void SpriteShow();
void SpriteHide();
void SpritePress();
void SpriteChange(int x);
void Print(QString text);
void FontType(QString family, QString extra);
void FontSize(int px);
void WrapOn();
void WrapOff();
void Reset();
private:
void execute (TreeNode*);
void execBlock (TreeNode*);
void execFor (TreeNode*);
void execForEach (TreeNode*);
void execWhile (TreeNode*);
void execIf (TreeNode*);
void execAssign (TreeNode*);
void execExpression (/*TreeNode*/);
void execId (TreeNode*);
void execConstant (/*TreeNode*/);
void createFunction (TreeNode*);
void execFunction (TreeNode*);
void execRetFunction (TreeNode*);
void execReturn (TreeNode*);
void execBreak (/*TreeNode*/);
void execAdd (TreeNode*);
void execMul (TreeNode*);
void execDiv (TreeNode*);
void execSub (TreeNode*);
void execNot (TreeNode*);
void execGE (TreeNode*);
void execGT (TreeNode*);
void execLE (TreeNode*);
void execLT (TreeNode*);
void execNE (TreeNode*);
void execEQ (TreeNode*);
void execAnd (TreeNode*);
void execOr (TreeNode*);
void execMinus (TreeNode*);
void execRun (TreeNode*);
void execClear (TreeNode*);
void execGo (TreeNode*);
void execGoX (TreeNode*);
void execGoY (TreeNode*);
void execForward (TreeNode*);
void execBackward (TreeNode*);
void execDirection (TreeNode*);
void execTurnLeft (TreeNode*);
void execTurnRight (TreeNode*);
void execCenter (TreeNode*);
void execSetPenWidth (TreeNode*);
void execPenUp (TreeNode*);
void execPenDown (TreeNode*);
void execSetFgColor (TreeNode*);
void execSetBgColor (TreeNode*);
void execResizeCanvas (TreeNode*);
void execSpriteShow (TreeNode*);
void execSpriteHide (TreeNode*);
void execSpritePress (TreeNode*);
void execSpriteChange (TreeNode*);
void execMessage (TreeNode*);
void execInputWindow (TreeNode*);
void execPrint (TreeNode*);
void execFontType (TreeNode*);
void execFontSize (TreeNode*);
void execRepeat (TreeNode*);
void execRandom (TreeNode*);
void execWait (TreeNode*);
void execWrapOn (TreeNode*);
void execWrapOff (TreeNode*);
void execReset (TreeNode*);
Value exec2getValue (TreeNode*);
QString runCommand(const QString&);
bool checkParameterQuantity(TreeNode*, uint quantity, int errorCode);
bool checkParameterType(TreeNode*, int valueType, int errorCode);
void slowDown(TreeNode*);
void startWaiting(int msec);
void startPausing();
// private locals
TreeNode* tree;
stack<symtable> symbolTables;
functable functionTable; // keep track of functionNode's
runstack runStack; // stores parameters and return value of functions
int runSpeed;
bool bReturn; // used for return statements
bool bBreak; // used for break statement
bool bPause; // used to pause execution
bool bAbort; // used to abort execution
bool bStopWaiting; // used for wait-command
private slots:
void slotStopWaiting();
void slotChangeSpeed(int speed);
void slotStopPausing();
};
#endif // _EXECUTER_H_
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