Long live Qt 4.5!

5 files changed, 441 insertions, 0 deletions

diff --git a/tools/qtconcurrent/codegenerator/codegenerator.pri b/tools/qtconcurrent/codegenerator/codegenerator.pri
new file mode 100644
index 0000000..0aeabab
--- /dev/null
+++ b/tools/qtconcurrent/codegenerator/codegenerator.pri
@@ -0,0 +1,5 @@
+SOURCES +=  $$PWD/src/codegenerator.cpp
+HEADERS +=  $$PWD/src/codegenerator.h
+INCLUDEPATH += $$PWD/src
+DEPENDPATH += $$PWD/src
+
diff --git a/tools/qtconcurrent/codegenerator/example/example.pro b/tools/qtconcurrent/codegenerator/example/example.pro
new file mode 100644
index 0000000..df266fe
--- /dev/null
+++ b/tools/qtconcurrent/codegenerator/example/example.pro
@@ -0,0 +1,9 @@
+TEMPLATE = app
+TARGET += 
+DEPENDPATH += .
+INCLUDEPATH += .
+
+include (../codegenerator.pri)
+
+# Input
+SOURCES += main.cpp
diff --git a/tools/qtconcurrent/codegenerator/example/main.cpp b/tools/qtconcurrent/codegenerator/example/main.cpp
new file mode 100644
index 0000000..0cd4c49
--- /dev/null
+++ b/tools/qtconcurrent/codegenerator/example/main.cpp
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <QDebug>
+#include "codegenerator.h"
+using namespace CodeGenerator;
+
+int main()
+{
+    // The code generator works on items. Each item has a generate() function:
+    Item item("");
+    qDebug() << item.generate(); // produces "".
+    
+    // There are several Item subclasses. Text items contains a text string which they
+    // reproduce when generate is called:
+    Text text(" Hi there");
+    qDebug() << text.generate(); // produces " Hi there".
+    
+    // Items can be concatenated:
+    Item sentence = text + Text(" Bye there") ;
+    qDebug() << sentence.generate(); // produces "Hi there Bye there".
+    // (Internally, this creates a tree of items, and generate is called recursively 
+    // for items that have children.)
+
+    // Repeater items repeat their content when generate is called:
+    Repeater repeater = text;
+    repeater.setRepeatCount(3);
+    qDebug() << repeater.generate(); // produces "Hi there Hi there Hi there".
+    
+    // Counters evaluate to the current repeat index.
+    Repeater repeater2 = text + Counter();
+    repeater2.setRepeatCount(3);
+    qDebug() << repeater2.generate(); // produces "Hi there0 Hi there1 Hi there2".
+
+    // Groups provide sub-groups which are repeated according to the current repeat index.
+    // Counters inside Groups evaluate to the local repeat index for the Group.
+    Group arguments("Arg" + Counter()  + " arg" + Counter());
+    Repeater function("void foo(" + arguments + ");\n");
+    function.setRepeatCount(3);
+    qDebug() << function.generate();
+
+    // Produces:
+    // void foo(Arg1 arg1);
+    // void foo(Arg1 arg1, Arg2 arg2);
+    // void foo(Arg1 arg1, Arg2 arg2, Arg3 arg3);
+}
diff --git a/tools/qtconcurrent/codegenerator/src/codegenerator.cpp b/tools/qtconcurrent/codegenerator/src/codegenerator.cpp
new file mode 100644
index 0000000..62b66cc
--- /dev/null
+++ b/tools/qtconcurrent/codegenerator/src/codegenerator.cpp
@@ -0,0 +1,140 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "codegenerator.h"
+#include <qdebug.h>
+namespace CodeGenerator
+{
+
+//Convenience constructor so you can say Item("foo")
+Item::Item(const char * const text) : generator(Text(QByteArray(text)).generator) {}
+
+int BaseGenerator::currentCount(GeneratorStack * const stack) const
+{
+    const int stackSize = stack->count();
+    for (int i = stackSize - 1; i >= 0; --i) {
+        BaseGenerator const * const generator = stack->at(i);
+        switch (generator->type) {
+            case RepeaterType: {
+                RepeaterGenerator const * const repeater = static_cast<RepeaterGenerator const * const>(generator);
+                return repeater->currentRepeat;
+            } break;
+            case GroupType: {
+                GroupGenerator const * const group = static_cast<GroupGenerator const * const>(generator);
+                return group->currentRepeat;
+            } break;
+            default:
+            break;
+        }
+    }
+    return -1;
+}
+
+int BaseGenerator::repeatCount(GeneratorStack * const stack) const
+{
+    const int stackSize = stack->count();
+    for (int i = stackSize - 1; i >= 0; --i) {
+        BaseGenerator const * const generator = stack->at(i);
+        switch (generator->type) {
+            case RepeaterType: {
+                RepeaterGenerator const * const repeater = static_cast<RepeaterGenerator const * const>(generator);
+                return repeater->currentRepeat;
+            } break;
+/*            case GroupType: {
+                GroupGenerator const * const group = static_cast<GroupGenerator const * const>(generator);
+                return group->currentRepeat;
+            } break;
+*/  
+            default:
+            break;
+        }
+    }
+    return -1;
+}
+
+QByteArray RepeaterGenerator::generate(GeneratorStack * const stack)
+{ 
+    GeneratorStacker stacker(stack, this);
+    QByteArray generated;
+    for (int i = repeatOffset; i < repeatCount + repeatOffset; ++i) {
+        currentRepeat = i;
+        generated += childGenerator->generate(stack);
+    }
+    return generated;
+};
+
+QByteArray GroupGenerator::generate(GeneratorStack * const stack)
+{ 
+    const int repeatCount = currentCount(stack);
+    GeneratorStacker stacker(stack, this);
+    QByteArray generated;
+
+    if (repeatCount > 0)
+        generated += prefix->generate(stack);
+
+    for (int i = 1; i <= repeatCount; ++i) {
+        currentRepeat = i;
+        generated += childGenerator->generate(stack);
+        if (i != repeatCount)
+            generated += separator->generate(stack);
+    }
+
+    if (repeatCount > 0)
+        generated += postfix->generate(stack);
+
+    return generated;
+};
+
+const Compound operator+(const Item &a, const Item &b)
+{
+    return Compound(a, b);
+}
+
+const Compound operator+(const Item &a, const char * const text)
+{
+    return Compound(a, Text(text));
+}
+
+const Compound operator+(const char * const text, const Item &b)
+{
+    return Compound(Text(text), b);    
+}
+
+}
\ No newline at end of file
diff --git a/tools/qtconcurrent/codegenerator/src/codegenerator.h b/tools/qtconcurrent/codegenerator/src/codegenerator.h
new file mode 100644
index 0000000..260ba8c
--- /dev/null
+++ b/tools/qtconcurrent/codegenerator/src/codegenerator.h
@@ -0,0 +1,204 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@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