tools/xmlpatterns/qapplicationargument.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/xmlpatterns/qapplicationargument.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,344 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QHash>
+#include <QString>
+
+#include "qapplicationargument_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+ \class QApplicationArgument
+ \brief The QApplicationArgument class is a declared of a command line
+        argument for QApplicationArgumentParser.
+ \reentrant
+ \internal
+ \since 4.4
+
+ QApplicationArgument describes a valid command line argument,
+ by having a set of characteristics:
+
+ \table
+   \header
+        \o Characteristic
+        \o Functions
+    \row
+        \o A name. For instance, "backend"
+        \o setName() and name()
+    \row
+        \o A description, for human consumption.
+        \o setDescription() and description()
+    \row
+        \o How many times the argument can occur. For instance, whether the argument is optional or not.
+        \o setMinimumOccurrence() & minimumOccurrence(), setMaximumOccurrence() & maximumOccurrence()
+    \row
+        \o The type of the argument's value, if it has one. For instance, \c int or \c bool.
+        \o setType() and type()
+    \row
+        \o The value that should be used in case the argument isn't used.
+        \o setDefaultValue() and defaultValue()
+ \endtable
+
+ \sa QApplicationArgumentParser
+ */
+
+class QApplicationArgumentPrivate
+{
+public:
+    inline QApplicationArgumentPrivate(const QString &newName,
+                                       const QString &desc,
+                                       const int newType) : name(newName)
+                                                          , description(desc)
+                                                          , type(newType)
+                                                          , minimum(0)
+                                                          , maximum(1)
+                                                          , isNameless(false)
+    {
+    }
+
+    QString         name;
+    QString         description;
+    int             type;
+    QVariant        defaultValue;
+    int             minimum;
+    int             maximum;
+    bool            isNameless;
+};
+
+/*!
+  Constructs an invalid QApplicationArgument instance.
+ */
+QApplicationArgument::QApplicationArgument() : d_ptr(new QApplicationArgumentPrivate(QString(), QString(), QVariant::Invalid))
+{
+}
+
+/*!
+ Constructs an QApplicationArgument instance that is a copy of \a other.
+ */
+QApplicationArgument::QApplicationArgument(const QApplicationArgument &other) : d_ptr(new QApplicationArgumentPrivate(*other.d_ptr))
+{
+}
+
+/*!
+ Destructs this QApplicationArgument instance.
+ */
+QApplicationArgument::~QApplicationArgument()
+{
+    delete d_ptr;
+}
+
+/*!
+ Constructs an argument that has the name \a name and is of type
+ \a aType.
+
+ Calling this constructor is equivalent to calling setName() and setType()
+ on a default constructed QApplicationArgument instance.
+
+ \sa setName(), setType()
+ */
+QApplicationArgument::QApplicationArgument(const QString &name,
+                                           const QString &description,
+                                           int aType) : d_ptr(new QApplicationArgumentPrivate(name, description, aType))
+{
+}
+
+/*!
+ Assigns \a other to this QApplicationArgument instance.
+ */
+QApplicationArgument &QApplicationArgument::operator=(const QApplicationArgument &other)
+{
+    if(this != &other)
+        *d_ptr = *other.d_ptr;
+
+    return *this;
+}
+
+// TODO is this really what we want?
+/*!
+ Returns true if this QApplicationArgument instance is equal to \a other.
+
+ Equalness is defined to only consider name(). If for instance the type() differs
+ but the names are equal, this operator will return \c true.
+ */
+bool QApplicationArgument::operator==(const QApplicationArgument &other) const
+{
+    return name() == other.name();
+}
+
+/*!
+  \fn qHash(const QApplicationArgument &);
+  \internal
+
+  Returns a hash index of \a argument. This function is used when QApplicationArgument
+  is used with QHash.
+
+  The hash index is computed on name(). The other properties are ignored.
+
+ \relates QApplicationArgument
+ */
+
+/*!
+ Sets this argument's name to \a newName. The name does not
+ include any dash, or other prefix that is used by the parser.
+ */
+void QApplicationArgument::setName(const QString &newName)
+{
+    d_ptr->name = newName;
+}
+
+/*!
+ Returns the name that this argument has.
+
+ \sa setName()
+ */
+QString QApplicationArgument::name() const
+{
+    return d_ptr->name;
+}
+
+/*!
+ Sets the tupe to \a newType.
+
+ If \a newType is QVariant::Invalid, it signals that this
+ argument does not accept a value at all.
+
+ \a newType can be a QVariant::type() value, or QVariant::userType().
+
+ \sa type()
+ */
+void QApplicationArgument::setType(int newType)
+{
+    d_ptr->type = newType;
+}
+
+/*!
+ Returns the type that the value of this argument has. If it
+ is QVariant::Invalid, it means this argument cannot have a value
+ and is a switch only.
+
+ The type is by default QVariant::Invalid.
+\sa setType()
+ */
+int QApplicationArgument::type() const
+{
+    return d_ptr->type;
+}
+
+void QApplicationArgument::setDefaultValue(const QVariant &value)
+{
+    d_ptr->defaultValue = value;
+}
+
+QVariant QApplicationArgument::defaultValue() const
+{
+    return d_ptr->defaultValue;
+}
+
+/*!
+ Sets the minimum amount of times this argument can occur, to \a minimum.
+ For instance, if \a minimum is 2, the argument must be used at least two times.
+
+ If \a minimum is zero, it means the argument is optional.
+
+ \sa minimumOccurrence(), setMaximumOccurrence()
+ */
+void QApplicationArgument::setMinimumOccurrence(int minimum)
+{
+    Q_ASSERT_X(minimum >= 0, Q_FUNC_INFO,
+           "The minimum cannot be less than zero.");
+    d_ptr->minimum = minimum;
+}
+
+/*!
+ Returns the minimum amount of times an an argument must occur.
+
+ The default is 0.
+
+ \sa setMinimumOccurrence(), maximumOccurrence()
+ */
+int QApplicationArgument::minimumOccurrence() const
+{
+    return d_ptr->minimum;
+}
+
+/*!
+ Sets the maximum occurrence to \a maximum.
+
+ If \a maximum is -1, it means the argument can appear an unlimited
+ amount of times. Setting it to zero or less than -1, yields
+ undefined behavior.
+
+\sa maximumOccurrence(), setMinimumOccurrence()
+ */
+void QApplicationArgument::setMaximumOccurrence(int maximum)
+{
+    Q_ASSERT_X(maximum == -1 || maximum >= 1, Q_FUNC_INFO,
+           "The maximum can only be -1 or 1 or larger.");
+    d_ptr->maximum = maximum;
+}
+
+/*!
+ Returns the maximum amount of times this argument can occur. For instance,
+ if the maximum occurrence is 2, it would be an error if 3 were specified
+ on the command line.
+
+ If the maximum occurrence is -1, it signals the argument can appear an unlimited
+ amount of times.
+
+ The default is 1.
+
+ \sa setMaximumOccurrence()
+ */
+int QApplicationArgument::maximumOccurrence() const
+{
+    return d_ptr->maximum;
+}
+
+/*!
+ Sets the description to \a newDescription. The description
+ should describe the argument in a sentence or two. It is used
+ when displaying a help message, if requested.
+
+ The description should be terminated as if it was a paragraph. This
+ typically means a period.
+
+ The description should be translated by wrapping the
+ string literal in a call to tr().
+
+ */
+void QApplicationArgument::setDescription(const QString &newDescription)
+{
+    d_ptr->description = newDescription;
+}
+
+/*!
+ Returns the description of this argument.
+
+ \sa setDescription()
+ */
+QString QApplicationArgument::description() const
+{
+    return d_ptr->description;
+}
+
+/*!
+ \internal
+ \relates QApplicationArgument
+
+ Computes a hash key on \a argument's name and returns it.
+ */
+uint qHash(const QApplicationArgument &argument)
+{
+    return qHash(argument.name());
+}
+
+void QApplicationArgument::setNameless(bool value)
+{
+    d_ptr->isNameless = value;
+}
+
+bool QApplicationArgument::isNameless() const
+{
+    return d_ptr->isNameless;
+}
+
+QT_END_NAMESPACE