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/* This file is part of the KDE project
Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
Copyright (C) 2004 Alexander Dymo <cloudtemple@mskat.net>
Copyright (C) 2004-2006 Jaroslaw Staniek <js@iidea.pl>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KPROPERTY_SET_H
#define KPROPERTY_SET_H
#include "koproperty_global.h"
#include <tqobject.h>
#include <tqasciidict.h>
namespace KoProperty {
class Property;
class SetPrivate;
/*! \brief Lists holding properties in groups
\author Cedric Pasteur <cedric.pasteur@free.fr>
\author Alexander Dymo <cloudtemple@mskat.net>
\author Jaroslaw Staniek <js@iidea.pl>
*/
class KOPROPERTY_EXPORT Set : public TQObject
{
Q_OBJECT
public:
/*! \brief A class to iterate over a Set.
It behaves like a TQDictIterator. To use it:
\code for(Set::Iterator it(set); it.current(); ++it) { .... }
\endcode
\author Cedric Pasteur <cedric.pasteur@free.fr>
\author Alexander Dymo <cloudtemple@mskat.net> */
class KOPROPERTY_EXPORT Iterator {
public:
Iterator(const Set &set);
~Iterator();
void operator ++();
Property* operator *() const;
TQCString currentKey() const;
Property* current() const;
private:
TQAsciiDictIterator<Property> *iterator;
friend class Set;
};
explicit Set(TQObject *parent=0, const TQString &typeName=TQString());
/*! Constructs a deep copy of \a set.
The new object will not have a TQObject parent even if \a set has such parent. */
explicit Set(const Set& set);
virtual ~Set();
/*! Adds the property to the set, in the group. You can use any group name, except "common"
(which is already used for basic group). */
void addProperty(Property *property, TQCString group = "common");
/*! Removes property from the set. Emits aboutToDeleteProperty before removing.*/
void removeProperty(Property *property);
/*! Removes property with the given name from the set.
Emits aboutToDeleteProperty() before removing.*/
void removeProperty(const TQCString &name);
/*! Removes all properties from the property set and destroys them. */
virtual void clear();
/*! \return the number of items in the set. */
uint count() const;
/*! \return true if the set is empty, i.e. count() == 0; otherwise returns false. */
bool isEmpty() const;
/*! \return true if the set is read-only.
In read-only property set,
no property can be modified regardless of read-only flag of any
property (see Property::isReadOnly()). On the other hand, if Property::isReadOnly()
is true of a property and Set::isReadOnly() is false, the property is still read-only.
Read-only property set prevents editing in the property editor.
By default the set is read-write. */
bool isReadOnly() const;
/*! Sets this set to be read-only.
@see isReadOnly */
void setReadOnly(bool readOnly);
/*! \return true if the set contains property names \a name. */
bool contains(const TQCString &name) const;
/*! \return property named with \a name. If no such property is found,
null property (Property::null) is returned. */
Property& property( const TQCString &name) const;
/*! Accesses a property by it's name.
Property reference is returned, so all property modifications are allowed.
If there is no such property, null property is returned,
so it's good practice to use contains() is you're unsure if the property exists.
For example, to set a value of a property, use:
/code
Set set;
...
if (!set.contains("myProperty")) {
dosomething;
}
set["myProperty"].setValue("My Value");
/endcode
\return \ref Property with given name. */
Property& operator[](const TQCString &name) const;
/*! Creates a deep copy of \a set and assigns it to this property set. */
const Set& operator= (const Set &set);
/*! Change the value of property whose key is \a property to \a value.
By default, it only calls Property::setValue(). */
void changeProperty(const TQCString &property, const TQVariant &value);
/*! Sets the i18n'ed string that will be shown in Editor to represent
\a group. */
void setGroupDescription(const TQCString &group, const TQString& desc);
/*! \return the i18n'ed description string for \a group that will
be shown in Editor to represent \a group. If there is no special
description set for the group, \a group is just returned. */
TQString groupDescription(const TQCString &group) const;
/*! Sets the icon name \a icon to be displayed for \a group. */
void setGroupIcon(const TQCString &group, const TQString& icon);
/*! \return the icons name for \a group. */
TQString groupIcon(const TQCString &group) const;
/*! \return a list of all group names. The order is the same as the order
of creation. */
const TQValueList<TQCString>& groupNames() const;
/*! \return a list of all property names. The order is the same as the order
of creation. */
const TQValueList<TQCString>& propertyNamesForGroup(const TQCString &group) const;
/*! Used by property editor to preserve previous selection when this set
is assigned again. */
TQCString prevSelection() const;
void setPrevSelection(const TQCString& prevSelection);
/*! A name of this property set type, that is usable when
we want to know if two property set objects have the same type.
This avoids e.g. reloading of all Editor's contents.
Also, this allows to know if two property set objects are compatible
by their property sets.
For comparing purposes, type names are case insensitive.*/
TQString typeName() const;
/*! Prints debug output for this set. */
void debug();
protected:
/*! Constructs a set which owns or does not own it's properties.*/
Set(bool propertyOwner);
/*! Adds property to a group.*/
void addToGroup(const TQCString &group, Property *property);
/*! Removes property from a group.*/
void removeFromGroup(Property *property);
/*! Adds the property to the set, in the group. You can use any group name, except "common"
(which is already used for basic group). If \a updateSortingKey is true, the sorting key
will be set automatically to count().
@internal */
void addPropertyInternal(Property *property, TQCString group, bool updateSortingKey);
/*! @internal used to declare that \a property wants to be informed
that the set has been cleared (all properties are deleted) */
void informAboutClearing(bool& cleared);
signals:
/*! Emitted when the value of the property is changed.*/
void propertyChanged(KoProperty::Set& set, KoProperty::Property& property);
/*! @internal Exists to be sure that we emitted it before propertyChanged(),
so Editor object can handle this. */
void propertyChangedInternal(KoProperty::Set& set, KoProperty::Property& property);
/*! Emitted when the value of the property is reset.*/
void propertyReset(KoProperty::Set& set, KoProperty::Property& property);
/*! Emitted when property is about to be deleted.*/
void aboutToDeleteProperty(KoProperty::Set& set, KoProperty::Property& property);
/*! Emitted when property set object is about to be cleared (using clear()).
This signal is also emmited from destructor before emitting aboutToBeDeleted(). */
void aboutToBeCleared();
/*! Emitted when property set object is about to be deleted.*/
void aboutToBeDeleted();
protected:
SetPrivate *d;
friend class Iterator;
friend class Property;
friend class Buffer;
};
/*! \brief
\todo find a better name to show it's a set that doesn't own property
\author Cedric Pasteur <cedric.pasteur@free.fr>
\author Alexander Dymo <cloudtemple@mskat.net>
\author Adam Treat <treat@kde.org>
*/
class KOPROPERTY_EXPORT Buffer : public Set
{
Q_OBJECT
public:
Buffer();
Buffer(const Set *set);
/*! Intersects with other Set.*/
virtual void intersect(const Set *set);
protected slots:
void intersectedChanged(KoProperty::Set& set, KoProperty::Property& prop);
void intersectedReset(KoProperty::Set& set, KoProperty::Property& prop);
private:
void initialSet(const Set *set);
};
}
#endif
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