--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/qtconcurrent/codegenerator/src/codegenerator.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,204 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef CODEGENERATOR_H
+#define CODEGENERATOR_H
+
+#include <QByteArray>
+#include <QString>
+#include <QList>
+#include <QStack>
+
+namespace CodeGenerator
+{
+ enum GeneratorType {NoopType, CompoundType, TextType, RepeaterType, CounterType, GroupType};
+ class BaseGenerator;
+ typedef QStack<BaseGenerator *> GeneratorStack;
+
+ template <typename ValueType>
+ class Stacker {
+ public:
+ Stacker(QStack<ValueType> *stack, ValueType value) : stack(stack) { stack->push(value); }
+ ~Stacker() { stack->pop();}
+ private:
+ QStack<ValueType> *stack;
+ };
+ typedef Stacker<BaseGenerator *> GeneratorStacker;
+
+ class BaseGenerator
+ {
+ public:
+ BaseGenerator(GeneratorType type = NoopType) : type(type) {}
+ virtual ~BaseGenerator() {};
+ virtual QByteArray generate(GeneratorStack *stack) { Q_UNUSED(stack); return QByteArray(); };
+ int currentCount(GeneratorStack *stack) const;
+ int repeatCount(GeneratorStack *stack) const;
+ GeneratorType type;
+ };
+
+ class Item
+ {
+ public:
+ Item(BaseGenerator * const base) : generator(base) {}
+ Item(const char * const text);
+ QByteArray generate() const
+ { GeneratorStack stack; return generator->generate(&stack); }
+ // ### TODO: Fix memory leak!
+ // QExplicitlySharedDataPointer<BaseGenerator> generator;
+ BaseGenerator * const generator;
+ };
+
+ class CompoundGenerator : public BaseGenerator
+ {
+ public:
+ CompoundGenerator(BaseGenerator * const a, BaseGenerator * const b)
+ : BaseGenerator(CompoundType), a(a), b(b) {}
+ virtual QByteArray generate(GeneratorStack *stack)
+ { return a->generate(stack) + b->generate(stack); };
+ protected:
+ BaseGenerator * const a;
+ BaseGenerator * const b;
+ };
+
+ class Compound : public Item
+ {
+ public:
+ Compound(const Item &a, const Item &b) : Item(new CompoundGenerator(a.generator, b.generator)) {}
+ };
+
+ class TextGenerator : public BaseGenerator
+ {
+ public:
+ TextGenerator(const QByteArray &text) : BaseGenerator(TextType), text(text) {}
+ virtual QByteArray generate(GeneratorStack *) { return text; };
+ protected:
+ QByteArray text;
+ };
+
+ class Text : public Item {
+ public:
+ Text(const QByteArray &text) : Item(new TextGenerator(text)) {}
+ Text(const char * const text) : Item(new TextGenerator(QByteArray(text))) {}
+ };
+
+ class RepeaterGenerator : public BaseGenerator
+ {
+ public:
+ RepeaterGenerator(BaseGenerator * const childGenerator)
+ : BaseGenerator(RepeaterType), repeatCount(1), repeatOffset(0), childGenerator(childGenerator) {}
+ virtual QByteArray generate(GeneratorStack *stack);
+
+ int repeatCount;
+ int repeatOffset;
+ int currentRepeat;
+ BaseGenerator * const childGenerator;
+ };
+
+ class Repeater : public Item {
+ public:
+ Repeater(const Item &item) : Item(new RepeaterGenerator(item.generator)) {}
+ void setRepeatCount(int count)
+ { static_cast<RepeaterGenerator * const>(generator)->repeatCount = count; }
+ void setRepeatOffset(int offset)
+ { static_cast<RepeaterGenerator * const>(generator)->repeatOffset = offset; }
+ };
+
+ class CounterGenerator : public BaseGenerator
+ {
+ public:
+ CounterGenerator() : BaseGenerator(CounterType), offset(0), increment(1), reverse(false) {}
+ QByteArray generate(GeneratorStack *stack)
+ {
+ if (reverse)
+ return QByteArray::number(repeatCount(stack) - (currentCount(stack) * increment) + offset + 1);
+ else
+ return QByteArray::number((currentCount(stack) * increment) + offset);
+ }
+ int offset;
+ int increment;
+ bool reverse;
+ };
+
+ class Counter : public Item {
+ public:
+ Counter() : Item(new CounterGenerator()) {}
+ Counter(int offset) : Item(new CounterGenerator()) { setOffset(offset); }
+ void setOffset(int offset)
+ { static_cast<CounterGenerator *>(generator)->offset = offset; }
+ void setIncrement(int increment)
+ { static_cast<CounterGenerator *>(generator)->increment = increment; }
+ void setReverse(bool reverse)
+ { static_cast<CounterGenerator *>(generator)->reverse = reverse; }
+
+ };
+
+ class GroupGenerator : public BaseGenerator
+ {
+ public:
+ GroupGenerator(BaseGenerator * const childGenerator)
+ : BaseGenerator(GroupType), currentRepeat(0), childGenerator(childGenerator),
+ separator(new BaseGenerator()), prefix(new BaseGenerator()), postfix(new BaseGenerator()) { }
+ virtual QByteArray generate(GeneratorStack *stack);
+ int currentRepeat;
+ BaseGenerator * const childGenerator;
+ BaseGenerator *separator;
+ BaseGenerator *prefix;
+ BaseGenerator *postfix;
+ };
+
+ class Group : public Item
+ {
+ public:
+ Group(const Item &item) : Item(new GroupGenerator(item.generator)) { setSeparator(", "); }
+ void setSeparator(const Item &separator)
+ { static_cast<GroupGenerator *>(generator)->separator = separator.generator; }
+ void setPrefix(const Item &prefix)
+ { static_cast<GroupGenerator *>(generator)->prefix = prefix.generator; }
+ void setPostfix(const Item &postfix)
+ { static_cast<GroupGenerator *>(generator)->postfix = postfix.generator; }
+ };
+
+ const Compound operator+(const Item &a, const Item &b);
+ const Compound operator+(const Item &a, const char * const text);
+ const Compound operator+(const char * const text, const Item &b);
+
+} //namespace CodeGenerator
+
+#endif