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Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativepositioners_p.h')
-rw-r--r-- | src/declarative/graphicsitems/qdeclarativepositioners_p.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativepositioners_p.h b/src/declarative/graphicsitems/qdeclarativepositioners_p.h new file mode 100644 index 0000000..ff6fc4b --- /dev/null +++ b/src/declarative/graphicsitems/qdeclarativepositioners_p.h @@ -0,0 +1,199 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module 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 QDECLARATIVELAYOUTS_H +#define QDECLARATIVELAYOUTS_H + +#include "qdeclarativeitem.h" + +#include "../util/qdeclarativestate_p.h" +#include <private/qpodvector_p.h> + +#include <QtCore/QObject> +#include <QtCore/QString> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) +class QDeclarativeBasePositionerPrivate; + +class Q_DECLARATIVE_EXPORT QDeclarativeBasePositioner : public QDeclarativeItem +{ + Q_OBJECT + + Q_PROPERTY(int spacing READ spacing WRITE setSpacing NOTIFY spacingChanged) + Q_PROPERTY(QDeclarativeTransition *move READ move WRITE setMove NOTIFY moveChanged) + Q_PROPERTY(QDeclarativeTransition *add READ add WRITE setAdd NOTIFY addChanged) +public: + enum PositionerType { None = 0x0, Horizontal = 0x1, Vertical = 0x2, Both = 0x3 }; + QDeclarativeBasePositioner(PositionerType, QDeclarativeItem *parent); + ~QDeclarativeBasePositioner(); + + int spacing() const; + void setSpacing(int); + + QDeclarativeTransition *move() const; + void setMove(QDeclarativeTransition *); + + QDeclarativeTransition *add() const; + void setAdd(QDeclarativeTransition *); + +protected: + QDeclarativeBasePositioner(QDeclarativeBasePositionerPrivate &dd, PositionerType at, QDeclarativeItem *parent); + virtual void componentComplete(); + virtual QVariant itemChange(GraphicsItemChange, const QVariant &); + void finishApplyTransitions(); + +Q_SIGNALS: + void spacingChanged(); + void moveChanged(); + void addChanged(); + +protected Q_SLOTS: + virtual void doPositioning()=0; + void prePositioning(); + +protected: + struct PositionedItem { + PositionedItem(QDeclarativeItem *i) : item(i), isNew(false), isVisible(true) {} + bool operator==(const PositionedItem &other) const { return other.item == item; } + QDeclarativeItem *item; + bool isNew; + bool isVisible; + }; + + QPODVector<PositionedItem,8> positionedItems; + void positionX(int,const PositionedItem &target); + void positionY(int,const PositionedItem &target); + +private: + Q_DISABLE_COPY(QDeclarativeBasePositioner) + Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QDeclarativeBasePositioner) +}; + +class Q_DECLARATIVE_EXPORT QDeclarativeColumn : public QDeclarativeBasePositioner +{ + Q_OBJECT +public: + QDeclarativeColumn(QDeclarativeItem *parent=0); +protected Q_SLOTS: + virtual void doPositioning(); +private: + Q_DISABLE_COPY(QDeclarativeColumn) +}; + +class Q_DECLARATIVE_EXPORT QDeclarativeRow: public QDeclarativeBasePositioner +{ + Q_OBJECT +public: + QDeclarativeRow(QDeclarativeItem *parent=0); +protected Q_SLOTS: + virtual void doPositioning(); +private: + Q_DISABLE_COPY(QDeclarativeRow) +}; + +class Q_DECLARATIVE_EXPORT QDeclarativeGrid : public QDeclarativeBasePositioner +{ + Q_OBJECT + Q_PROPERTY(int rows READ rows WRITE setRows NOTIFY rowChanged) + Q_PROPERTY(int columns READ columns WRITE setColumns NOTIFY columnsChanged) +public: + QDeclarativeGrid(QDeclarativeItem *parent=0); + + int rows() const {return _rows;} + void setRows(const int rows); + + int columns() const {return _columns;} + void setColumns(const int columns); + +Q_SIGNALS: + void rowsChanged(); + void columnsChanged(); + +protected Q_SLOTS: + virtual void doPositioning(); + +private: + int _rows; + int _columns; + Q_DISABLE_COPY(QDeclarativeGrid) +}; + +class QDeclarativeFlowPrivate; +class Q_DECLARATIVE_EXPORT QDeclarativeFlow: public QDeclarativeBasePositioner +{ + Q_OBJECT + Q_PROPERTY(Flow flow READ flow WRITE setFlow NOTIFY flowChanged) +public: + QDeclarativeFlow(QDeclarativeItem *parent=0); + + Q_ENUMS(Flow) + enum Flow { LeftToRight, TopToBottom }; + Flow flow() const; + void setFlow(Flow); + +Q_SIGNALS: + void flowChanged(); + +protected Q_SLOTS: + virtual void doPositioning(); + +protected: + QDeclarativeFlow(QDeclarativeFlowPrivate &dd, QDeclarativeItem *parent); +private: + Q_DISABLE_COPY(QDeclarativeFlow) + Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QDeclarativeFlow) +}; + + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QDeclarativeColumn) +QML_DECLARE_TYPE(QDeclarativeRow) +QML_DECLARE_TYPE(QDeclarativeGrid) +QML_DECLARE_TYPE(QDeclarativeFlow) + +QT_END_HEADER + +#endif |