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-rw-r--r--kturtle/src/executer.cpp1116
1 files changed, 1116 insertions, 0 deletions
diff --git a/kturtle/src/executer.cpp b/kturtle/src/executer.cpp
new file mode 100644
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--- /dev/null
+++ b/kturtle/src/executer.cpp
@@ -0,0 +1,1116 @@
+/*
+ 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.
+ */
+
+// This file is originally written by Walter Scheppers, but almost
+// every aspect of it is slightly changed by Cies Breijs.
+
+
+#include <unistd.h> // for usleep();
+#include <stdlib.h>
+
+#include <qtimer.h>
+
+#include <kapplication.h>
+#include <kdebug.h>
+#include <klocale.h>
+
+#include "executer.h"
+
+// this function is used in executer and canvas:
+#define ROUND2INT(x) ( (x) >= 0 ? (int)( (x) + .5 ) : (int)( (x) - .5 ) )
+
+
+Executer::Executer(TreeNode* tree)
+{
+ this->tree = tree;
+ functionTable.clear();
+ bBreak = false;
+ bReturn = false;
+}
+
+Executer::~Executer()
+{
+ emit Finished();
+}
+
+bool Executer::run()
+{
+ bBreak = false;
+ bReturn = false;
+ bPause = false;
+ bAbort = false;
+ symtable main;
+ symbolTables.push(main); // new symbol table for main block
+
+ TreeNode::const_iterator i;
+ for (i = tree->begin(); i != tree->end(); ++i)
+ {
+ if (bAbort) return false;
+ kapp->processEvents();
+ execute(*i);
+
+ symbolTables.pop(); //free up stack
+ }
+ return true;
+}
+
+void Executer::slowDown(TreeNode* node)
+{
+ switch (runSpeed)
+ {
+ case 1: // slow
+ startWaiting(0);
+ break;
+
+ case 2: // slower
+ startWaiting(250);
+ break;
+
+ case 3: // slowest
+ startWaiting(900);
+ break;
+
+ default:
+ kdDebug(0)<<"Executer: Wrong execution speed given"<<endl;
+ break;
+ }
+ Token tok = node->getToken();
+ emit setSelection(tok.start.row, tok.start.col, tok.end.row, tok.end.col);
+}
+
+void Executer::slotChangeSpeed(int speed)
+{
+ runSpeed = speed;
+}
+
+void Executer::pause()
+{
+ // The next line is within all loops of the Executer
+ // if (bAbort) return;
+ // mostly before
+ // kapp->processEvents();
+ // this to keep the GUI of KTurtle accessible while executing the logo code
+ // so the Abort button can be clicked, and will function
+ bPause = true;
+}
+
+void Executer::abort()
+{
+ // The next line is within all loops of the Executer
+ // if(bAbort) return;
+ // mostly before
+ // kapp->processEvents();
+ // this to keep the GUI of KTurtle accessible while executing the logo code
+ // so the Abort button can be clicked, and will function
+ bAbort = true;
+}
+
+
+void Executer::execute(TreeNode* node)
+{
+ switch ( node->getType() )
+ {
+ case blockNode : execBlock(node); break;
+ case forNode : execFor(node); break;
+ case forEachNode : execForEach(node); break;
+ case whileNode : execWhile(node); break;
+ case ifNode : execIf(node); break;
+ case assignNode : execAssign(node); break;
+ case expressionNode : execExpression(/*node*/); break;
+ case idNode : execId(node); break;
+ case constantNode : execConstant(/*node*/); break; // does nothing value allready set
+
+ case addNode : execAdd(node); break;
+ case mulNode : execMul(node); break;
+ case divNode : execDiv(node); break;
+ case subNode : execSub(node); break;
+ case minusNode : execMinus(node); break;
+
+ case nodeGE : execGE(node); break;
+ case nodeGT : execGT(node); break;
+ case nodeLE : execLE(node); break;
+ case nodeLT : execLT(node); break;
+ case nodeNE : execNE(node); break;
+ case nodeEQ : execEQ(node); break;
+
+ case andNode : execAnd(node); break;
+ case orNode : execOr(node); break;
+ case notNode : execNot(node); break;
+
+ case functionNode : createFunction(node); break;
+ case functionCallNode : execFunction(node); break;
+ case funcReturnNode : execRetFunction(node); break;
+ case returnNode : execReturn(node); break;
+ case breakNode : execBreak(/*node*/); break;
+
+ case runNode : execRun(node); break;
+
+ case ClearNode : execClear(node); break;
+ case GoNode : execGo(node); break;
+ case GoXNode : execGoX(node); break;
+ case GoYNode : execGoY(node); break;
+ case ForwardNode : execForward(node); break;
+ case BackwardNode : execBackward(node); break;
+ case DirectionNode : execDirection(node); break;
+ case TurnLeftNode : execTurnLeft(node); break;
+ case TurnRightNode : execTurnRight(node); break;
+ case CenterNode : execCenter(node); break;
+ case SetPenWidthNode : execSetPenWidth(node); break;
+ case PenUpNode : execPenUp(node); break;
+ case PenDownNode : execPenDown(node); break;
+ case SetFgColorNode : execSetFgColor(node); break;
+ case SetBgColorNode : execSetBgColor(node); break;
+ case ResizeCanvasNode : execResizeCanvas(node); break;
+ case SpriteShowNode : execSpriteShow(node); break;
+ case SpriteHideNode : execSpriteHide(node); break;
+ case SpritePressNode : execSpritePress(node); break;
+ case SpriteChangeNode : execSpriteChange(node); break;
+
+ case MessageNode : execMessage(node); break;
+ case InputWindowNode : execInputWindow(node); break;
+ case printNode : execPrint(node); break;
+ case FontTypeNode : execFontType(node); break;
+ case FontSizeNode : execFontSize(node); break;
+ case RepeatNode : execRepeat(node); break;
+ case RandomNode : execRandom(node); break;
+ case WaitNode : execWait(node); break;
+ case WrapOnNode : execWrapOn(node); break;
+ case WrapOffNode : execWrapOff(node); break;
+ case ResetNode : execReset(node); break;
+
+ case EndOfFileNode : break; // just do nothing is enough
+
+ case Unknown : // dont break but fallthrough to default
+
+ default:
+ kdDebug(0)<<"Found unsupported node named '"<<node->getLook()<<"' in the tree @ ("<<node->getRow()<<", "<<node->getCol()<<")"<<endl;
+ break;
+ }
+}
+
+
+void Executer::createFunction(TreeNode* node)
+{
+ QString funcname = node->getLook();
+ functionTable[funcname] = node; //store for later use
+}
+
+
+//execute a function
+void Executer::execFunction(TreeNode* node)
+{
+ QString funcname = node->getLook();
+
+ // locate function node
+ functable::iterator p = functionTable.find(funcname);
+ if ( p == functionTable.end() )
+ {
+ emit ErrorMsg(node->getToken(), i18n("Call to undefined function: %1.").arg(funcname), 5010);
+ return;
+ }
+
+ TreeNode* funcnode = p->second;
+ TreeNode* funcIds = funcnode->firstChild();
+ TreeNode* callparams = node->firstChild();
+
+ // check if number of parameters match
+ if ( callparams->size() != funcIds->size() )
+ {
+ emit ErrorMsg(node->getToken(), i18n("Call to function '%1' with wrong number of parameters.").arg(funcname), 5020);
+ return;
+ }
+
+ // pass parameters to function
+ // by adding them to it's symboltable and setting the values
+ TreeNode::iterator pfrom, pto = funcIds->begin();
+ symtable funcSymTable;
+
+ for (pfrom = callparams->begin(); pfrom != callparams->end(); ++pfrom )
+ {
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ // execute the parameters which can be expressions
+ execute(*pfrom);
+
+ QString idname = (*pto)->getLook();
+ funcSymTable[idname] = (*pfrom)->getValue();
+ ++pto;
+ }
+
+ symbolTables.push(funcSymTable); // use new symboltable for current function
+
+ // execute function statement block
+ bReturn = false; // set to true when return is called
+ execute( funcnode->secondChild() );
+ bReturn = false; // function execution done
+
+ symbolTables.pop(); // release function symboltable
+}
+
+
+// execute a function and expect and get return
+// value from stack
+// first child = function name
+// second child = parameters
+void Executer::execRetFunction(TreeNode* node)
+{
+ execFunction(node);
+ if (runStack.size() == 0)
+ {
+ emit ErrorMsg(node->getToken(), i18n("Function %1 did not return a value.").arg( node->getLook() ), 5030);
+ return;
+ }
+ node->setValue( runStack.top() ); // set return val
+ runStack.pop(); // remove from stack
+}
+
+
+void Executer::execReturn(TreeNode* node)
+{
+ execute( node->firstChild() ); // execute return expression
+ runStack.push( node->firstChild()->getValue() );
+ bReturn = true; // notify blocks of return
+}
+
+
+void Executer::execBreak(/*TreeNode* node*/)
+{
+ bBreak = true; // stops loop block execution
+}
+
+
+void Executer::execBlock(TreeNode* node)
+{
+ // execute all statements in block
+ TreeNode::iterator i;
+ for (i = node->begin(); i != node->end(); ++i)
+ {
+ if (runSpeed != 0) slowDown(*i);
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ execute(*i);
+
+ if (bReturn || bBreak) break; //jump out of block
+ }
+}
+
+
+void Executer::execForEach(TreeNode* node)
+{
+ // sorry, not fully implemented/tested yet
+ TreeNode* expr1 = node->firstChild();
+ TreeNode* expr2 = node->secondChild();
+ TreeNode* statements = node->thirdChild();
+
+ execute(expr1);
+ execute(expr2);
+
+ QString expStr1 = expr1->getValue().String();
+ QString expStr2 = expr2->getValue().String();
+
+ bBreak = false;
+
+ int i = expStr2.contains(expStr1, false);
+ for ( ; i > 0; i-- )
+ {
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ execute(statements);
+ if (bBreak || bReturn) break; //jump out loop
+ }
+ bBreak = false;
+}
+
+
+
+void Executer::execFor(TreeNode* node)
+{
+ TreeNode* id = node->firstChild();
+ TreeNode* startNode = node->secondChild();
+ TreeNode* stopNode = node->thirdChild();
+ TreeNode* statements = node->fourthChild();
+
+ QString name = id->getLook();
+
+ execute(startNode);
+ //assign startval to id
+ Value startVal = startNode->getValue();
+ ( symbolTables.top() )[ name ] = startVal;
+
+
+ execute(stopNode);
+ Value stopVal = stopNode->getValue();
+
+ if(node->size() == 4 ) //for loop without step part
+ {
+ bBreak = false;
+ for (double d = startVal.Number(); d <= stopVal.Number(); d = d + 1)
+ {
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+ ( symbolTables.top() )[name] = d;
+ execute( statements );
+ if (bBreak || bReturn) break; //jump out loop
+ }
+ bBreak = false;
+ }
+ else //for loop with step part
+ {
+ TreeNode* step = node->fourthChild();
+ statements = node->fifthChild();
+
+ execute(step);
+ Value stepVal = step->getValue();
+ bBreak = false;
+ if ( (stepVal.Number() >= 0.0) && (startVal.Number() <= stopVal.Number() ) )
+ {
+ for ( double d = startVal.Number(); d <= stopVal.Number(); d = d + stepVal.Number() )
+ {
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ (symbolTables.top() )[name] = d;
+ execute( statements );
+ if (bBreak || bReturn) break; //jump out loop
+ }
+ }
+ else if ( (stepVal.Number() < 0.0) && (startVal.Number() >= stopVal.Number() ) )
+ {
+ for (double d = startVal.Number(); d >= stopVal.Number(); d = d + stepVal.Number() )
+ {
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ ( symbolTables.top() )[name] = d;
+ execute(statements);
+ if (bBreak || bReturn) break; //jump out loop
+ }
+ }
+ bBreak = false;
+ }
+}
+
+
+
+void Executer::execRepeat(TreeNode* node)
+{
+ TreeNode* value = node->firstChild();
+ TreeNode* statements = node->secondChild();
+
+ bBreak = false;
+ execute(value);
+ for ( int i = ROUND2INT( value->getValue().Number() ); i > 0; i-- )
+ {
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ execute(statements);
+ if (bBreak || bReturn) break; //jump out loop
+ }
+ bBreak = false;
+}
+
+
+void Executer::execWhile(TreeNode* node)
+{
+ TreeNode* condition = node->firstChild();
+ TreeNode* statements = node->secondChild();
+
+ bBreak = false;
+ execute(condition);
+ while (condition->getValue().Number() != 0)
+ {
+ if (bAbort) return;
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ execute(statements);
+ if (bBreak || bReturn) break; //jump out loop
+ execute(condition);
+ }
+ bBreak = false;
+}
+
+
+void Executer::execIf(TreeNode* node)
+{
+ TreeNode* condition = node->firstChild();
+ TreeNode* ifblok = node->secondChild();
+
+ //determine if there is an else part
+ if (node->size() == 2) // no else
+ {
+ execute( condition );
+ if( condition->getValue().Number() != 0 ) execute(ifblok);
+ }
+ else // else part given
+ {
+ TreeNode* elseblok = node->thirdChild();
+ execute( condition );
+ if( condition->getValue().Number() != 0 ) execute(ifblok);
+ else execute( elseblok );
+ }
+}
+
+
+
+void Executer::execAssign(TreeNode* node)
+{
+ TreeNode* expr = node->firstChild();
+
+ execute(expr);
+ ( symbolTables.top() )[ node->getLook() ] = expr->getValue();
+}
+
+void Executer::execExpression(/*TreeNode* node*/)
+{
+ // execExpression is not implemented, because it should not be needed!
+}
+
+void Executer::execId(TreeNode* node)
+{
+ node->setValue( ( symbolTables.top() )[ node->getLook() ] );
+}
+
+void Executer::execConstant(/*TreeNode* node*/)
+{
+ // do nothing, value is already set
+}
+
+Value Executer::exec2getValue(TreeNode* node)
+{
+ execute(node);
+ return node->getValue();
+}
+
+
+void Executer::execAdd(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ if (left.Type() == numberValue && right.Type() == numberValue) node->setValue( left + right );
+ else node->setValue( left.String().append( right.String() ) );
+}
+
+
+void Executer::execMul(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ if (left.Type() == numberValue && right.Type() == numberValue) node->setValue( left * right );
+ else emit ErrorMsg(node->getToken(), i18n("Can only multiply numbers."), 9000);
+}
+
+
+void Executer::execDiv(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ if (left.Type() == numberValue && right.Type() == numberValue)
+ {
+ if (right.Number() == 0) emit ErrorMsg(node->getToken(), i18n("Cannot divide by zero."), 9000);
+ else node->setValue( left / right );
+ }
+ else emit ErrorMsg(node->getToken(), i18n("Can only divide numbers."), 9000);
+}
+
+
+void Executer::execSub(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ if (left.Type() == numberValue && right.Type() == numberValue)
+ node->setValue( left - right );
+
+ else emit ErrorMsg(node->getToken(), i18n("Can only subtract numbers."), 9000);
+}
+
+
+
+void Executer::execLT(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ node->setValue( left < right );
+}
+
+void Executer::execLE(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ node->setValue( left <= right );
+}
+
+void Executer::execGT(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ node->setValue( left > right );
+}
+
+void Executer::execGE(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ node->setValue( left >= right );
+}
+
+
+void Executer::execEQ(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ node->setValue( left == right );
+}
+
+
+void Executer::execNE(TreeNode* node)
+{
+ Value left( exec2getValue( node->firstChild() ) );
+ Value right( exec2getValue( node->secondChild() ) );
+
+ node->setValue( left != right );
+}
+
+
+
+void Executer::execAnd(TreeNode* node)
+{
+ bool nl = exec2getValue( node->firstChild() ).Number() != 0;
+ bool nr = exec2getValue( node->secondChild() ).Number() != 0;
+ node->setValue( (double) (nl && nr) );
+}
+
+
+void Executer::execOr(TreeNode* node)
+{
+ bool nl = exec2getValue( node->firstChild() ).Number() != 0;
+ bool nr = exec2getValue( node->secondChild() ).Number() != 0;
+ node->setValue(nl || nr);
+}
+
+
+void Executer::execNot(TreeNode* node)
+{
+ node->setValue( exec2getValue( node->firstChild() ).Number() == 0 );
+}
+
+
+void Executer::execMinus(TreeNode* node)
+{
+ node->setValue( -exec2getValue( node->firstChild() ).Number() );
+}
+
+
+QString Executer::runCommand(const QString& command)
+{
+ FILE *pstream;
+
+ if ( ( pstream = popen( command.ascii(), "r" ) ) == NULL ) return ("");
+
+ QString Line;
+ char buf[100];
+
+ while( fgets(buf, sizeof(buf), pstream) !=NULL) {
+ if (bAbort) return ("");
+ kapp->processEvents();
+
+ Line += buf;
+ }
+ pclose(pstream);
+ return Line;
+}
+
+
+void Executer::execRun(TreeNode* node)
+{
+ QString cmd = exec2getValue( node->firstChild() ).String();
+ node->setValue( runCommand(cmd) );
+}
+
+
+
+
+void Executer::execClear(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit Clear();
+}
+
+void Executer::execCenter(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit Center();
+}
+
+void Executer::execPenUp(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit PenUp();
+}
+
+void Executer::execPenDown(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit PenDown();
+}
+
+void Executer::execSpriteShow(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit SpriteShow();
+}
+
+void Executer::execSpriteHide(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit SpriteHide();
+}
+
+void Executer::execSpritePress(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit SpritePress();
+}
+
+void Executer::execWrapOn(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit WrapOn();
+}
+
+void Executer::execWrapOff(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit WrapOff();
+}
+
+void Executer::execReset(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 0, 5060) ) emit Reset();
+}
+
+void Executer::execMessage(TreeNode* node)
+{
+ if ( checkParameterQuantity(node, 1, 5060) && checkParameterType(node, stringValue, 5060) )
+ emit MessageDialog( node->firstChild()->getValue().String() );
+}
+
+
+
+
+
+
+void Executer::execGoX(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit GoX( param1->getValue().Number() );
+ }
+}
+
+void Executer::execGoY(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit GoY( param1->getValue().Number() );
+ }
+}
+
+void Executer::execForward(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit Forward( param1->getValue().Number() );
+ }
+}
+
+void Executer::execBackward(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit Backward( param1->getValue().Number() );
+ }
+}
+
+void Executer::execDirection(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit Direction( param1->getValue().Number() );
+ }
+}
+
+void Executer::execTurnLeft(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit TurnLeft( param1->getValue().Number() );
+ }
+}
+
+void Executer::execTurnRight(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit TurnRight( param1->getValue().Number() );
+ }
+}
+
+void Executer::execSetPenWidth(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ int x = ROUND2INT( param1->getValue().Number() ); // pull the number value & round it to int
+ if (x < 1 || x > 10000)
+ emit ErrorMsg(node->getToken(), i18n("The penwidth cannot be set to something smaller than 1, or bigger than 10000."), 6050);
+ else
+ emit SetPenWidth(x);
+ }
+}
+
+void Executer::execSpriteChange(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ int x = ROUND2INT( param1->getValue().Number() ); // pull the number value & round it to int
+ emit SpriteChange(x);
+ }
+}
+
+void Executer::execFontSize(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ int x = ROUND2INT( param1->getValue().Number() ); // pull the number value & round it to int
+ if ( x < 0 || x > 350 )
+ emit ErrorMsg(node->getToken(), i18n("The parameters of function %1 must be within range: 0 to 350.").arg( node->getLook() ), 5065);
+ else
+ emit FontSize(x);
+ }
+}
+
+
+
+
+
+
+void Executer::execGo(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 2, 5060) ) return;
+ TreeNode* nodeX = node->firstChild(); // getting
+ TreeNode* nodeY = node->secondChild();
+ execute(nodeX); // executing
+ execute(nodeY);
+
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ emit Go( nodeX->getValue().Number(), nodeY->getValue().Number() );
+ }
+}
+
+void Executer::execResizeCanvas(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 2, 5060) ) return;
+ TreeNode* nodeX = node->firstChild(); // getting
+ TreeNode* nodeY = node->secondChild();
+ execute(nodeX); // executing
+ execute(nodeY);
+
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ int x = ROUND2INT( nodeX->getValue().Number() ); // converting & rounding to int
+ int y = ROUND2INT( nodeY->getValue().Number() );
+ if ( ( x < 1 || y < 1 ) || ( x > 10000 || y > 10000 ) )
+ emit ErrorMsg(node->getToken(), i18n("The parameters of the %1 command must be numbers in the range: 1 to 10000.").arg( node->getLook() ), 7030);
+ else
+ emit ResizeCanvas(x, y);
+ }
+}
+
+void Executer::execRandom(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 2, 5060) ) return;
+ TreeNode* nodeX = node->firstChild(); // getting
+ TreeNode* nodeY = node->secondChild();
+ execute(nodeX); // executing
+ execute(nodeY);
+
+ if ( !checkParameterType(node, numberValue, 5060) ) return;
+ double x = nodeX->getValue().Number();
+ double y = nodeY->getValue().Number();
+ double r = (double)( KApplication::random() ) / RAND_MAX;
+ node->setValue( r * ( y - x ) + x );
+}
+
+
+
+
+
+void Executer::execSetFgColor(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 3, 5060) ) return;
+ TreeNode* nodeR = node->firstChild(); // getting
+ TreeNode* nodeG = node->secondChild();
+ TreeNode* nodeB = node->thirdChild();
+ execute(nodeR); // executing
+ execute(nodeG);
+ execute(nodeB);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ int r = ROUND2INT( nodeR->getValue().Number() ); // converting & rounding to int
+ int g = ROUND2INT( nodeG->getValue().Number() );
+ int b = ROUND2INT( nodeB->getValue().Number() );
+ if ( ( r < 0 || g < 0 || b < 0 ) || ( r > 255 || g > 255 || b > 255 ) )
+ emit ErrorMsg(node->getToken(), i18n("The parameters of the %1 command must be numbers in the range: 0 to 255.").arg( node->getLook() ), 6090);
+ else
+ emit SetFgColor(r, g, b);
+ }
+}
+
+void Executer::execSetBgColor(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 3, 5060) ) return;
+ TreeNode* nodeR = node->firstChild(); // getting
+ TreeNode* nodeG = node->secondChild();
+ TreeNode* nodeB = node->thirdChild();
+ execute(nodeR); // executing
+ execute(nodeG);
+ execute(nodeB);
+ if ( checkParameterType(node, numberValue, 5060) )
+ {
+ int r = ROUND2INT( nodeR->getValue().Number() ); // converting & rounding to int
+ int g = ROUND2INT( nodeG->getValue().Number() );
+ int b = ROUND2INT( nodeB->getValue().Number() );
+ if ( ( r < 0 || g < 0 || b < 0 ) || ( r > 255 || g > 255 || b > 255 ) )
+ emit ErrorMsg(node->getToken(), i18n("The parameters of the %1 command must be numbers in the range: 0 to 255.").arg( node->getLook() ), 6090);
+ else
+ emit SetBgColor(r, g, b);
+ }
+}
+
+
+
+
+
+
+
+
+
+
+
+void Executer::execInputWindow(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+
+ QString value = node->firstChild()->getValue().String();
+ emit InputDialog(value);
+
+ node->setType(constantNode);
+ if ( value.isEmpty() ) node->getValue().resetValue(); // set value back to empty
+ else
+ {
+ bool ok = true;
+ double num = value.toDouble(&ok); // to see if the value from the InpDialog is a float
+ if (ok) node->setValue(num);
+ else node->setValue(value);
+ }
+}
+
+void Executer::execPrint(TreeNode* node)
+{
+ if (node->size() == 0)
+ {
+ emit ErrorMsg(node->getToken(), i18n("The print command needs input"), 5050);
+ return;
+ }
+ TreeNode::iterator i;
+ QString str = "";
+ for (i = node->begin(); i != node->end(); ++i)
+ {
+ execute(*i); // execute expression
+ str = str + (*i)->getValue().String();
+ }
+ emit Print(str);
+}
+
+void Executer::execFontType(TreeNode* node)
+{
+ // if not 2 params go staight to the checkParam, diplay the error, and return to prevent a crash
+ if ( !checkParameterQuantity(node, 2, 5060) && !checkParameterType(node, stringValue, 5060) ) return;
+
+ QString extra;
+ if (node->size() == 2) QString extra = node->secondChild()->getValue().String();
+ QString family = node->firstChild()->getValue().String();
+ emit FontType(family, extra);
+}
+
+
+void Executer::execWait(TreeNode* node)
+{
+ if ( !checkParameterQuantity(node, 1, 5060) ) return;
+ TreeNode* param1 = node->firstChild();
+ execute(param1);
+ if ( !checkParameterType(node, numberValue, 5060) ) return;
+ int msec = (int)( 1000 * param1->getValue().Number() );
+ startWaiting(msec);
+}
+
+void Executer::startWaiting(int msec)
+{
+ bStopWaiting = false;
+ // call a timer that sets stopWaiting to true when it runs
+ QTimer::singleShot( msec, this, SLOT( slotStopWaiting() ) );
+ while (bStopWaiting == false)
+ {
+ if (bAbort) return; // waits need to be interrupted by the stop action
+ if (bPause) startPausing();
+ kapp->processEvents();
+
+ // only 10 times per second is enough... else the CPU gets 100% loaded ( not nice :)
+ usleep(100000);
+ }
+}
+
+void Executer::slotStopWaiting()
+{
+ bStopWaiting = true;
+}
+
+void Executer::startPausing()
+{
+ while (bPause == true)
+ {
+ if (bAbort) return; // waits need to be interrupted by the stop action
+ kapp->processEvents();
+ // only 10 times per second is enough... else the CPU gets 100% loaded ( not nice :)
+ usleep(100000);
+ }
+}
+
+void Executer::slotStopPausing()
+{
+ bPause = false;
+}
+
+
+
+
+bool Executer::checkParameterQuantity(TreeNode* node, uint quantity, int errorCode)
+{
+ if (quantity == 0)
+ {
+ if (node->size() == 0) return true; // thats easy!
+ emit ErrorMsg(node->getToken(), i18n("The %1 command accepts no parameters.").arg( node->getLook() ), errorCode);
+ return false;
+ }
+
+ uint nodeSize = node->size();
+ if (nodeSize != 0) // when all parameters are forgotten the parser puts a Unknown/tokEOL param, catch this:
+ if (node->firstChild()->getToken().type == tokEOL) nodeSize = 0;
+
+ if (nodeSize != quantity)
+ {
+ if (nodeSize < quantity)
+ {
+ emit ErrorMsg(node->getToken(), i18n("The %1 command was called with %2 but needs 1 parameter.", "The %1 command was called with %2 but needs %n parameters.", quantity).arg( node->getLook() ).arg(nodeSize), errorCode);
+ }
+ else
+ {
+ emit ErrorMsg(node->getToken(), i18n("The %1 command was called with %2 but only accepts 1 parameter.", "The %1 command was called with %2 but only accepts %n parameters.", quantity).arg( node->getLook() ).arg(nodeSize), errorCode);
+ }
+ return false;
+ }
+ return true; // if all tests passed
+}
+
+
+bool Executer::checkParameterType(TreeNode* node, int valueType, int errorCode)
+{
+ uint quantity = node->size();
+ uint ii = 1;
+ TreeNode::iterator i = node->begin();
+ while ( i != node->end() && ii <= quantity )
+ {
+ if ( (*i)->getValue().Type() != valueType )
+ {
+ switch (valueType)
+ {
+ case stringValue:
+ if (quantity == 1)
+ emit ErrorMsg(node->getToken(), i18n("The %1 command only accepts a string as its parameter.").arg( node->getLook() ), errorCode);
+ else
+ emit ErrorMsg(node->getToken(), i18n("The %1 command only accepts strings as its parameters.").arg( node->getLook() ), errorCode);
+ break;
+
+ case numberValue:
+ if (quantity == 1)
+ emit ErrorMsg(node->getToken(), i18n("The %1 command only accepts a number as its parameter.").arg( node->getLook() ), errorCode);
+ else
+ emit ErrorMsg(node->getToken(), i18n("The %1 command only accepts numbers as its parameters.").arg( node->getLook() ), errorCode);
+ break;
+ }
+ return false;
+ }
+ ++i;
+ ii++;
+ }
+ return true; // if all tests passed
+}
+
+#include "executer.moc"
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-17 16:08:38 +0000