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Diffstat (limited to 'src/declarative/fx/qfxpositioners.h')
-rw-r--r-- | src/declarative/fx/qfxpositioners.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/declarative/fx/qfxpositioners.h b/src/declarative/fx/qfxpositioners.h new file mode 100644 index 0000000..6acb393 --- /dev/null +++ b/src/declarative/fx/qfxpositioners.h @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 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 QFXLAYOUTS_H +#define QFXLAYOUTS_H + +#include <QtCore/QObject> +#include <QtCore/QString> +#include <QtDeclarative/qfxitem.h> +#include <QtDeclarative/qmlstate.h> + + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) +class QFxBasePositionerPrivate; + +class Q_DECLARATIVE_EXPORT QFxBasePositioner : public QFxItem +{ + Q_OBJECT + + Q_PROPERTY(int spacing READ spacing WRITE setSpacing) + Q_PROPERTY(int margin READ margin WRITE setMargin) + Q_PROPERTY(QmlTransition *move READ move WRITE setMove) + Q_PROPERTY(QmlTransition *add READ add WRITE setAdd) + Q_PROPERTY(QmlTransition *remove READ remove WRITE setRemove) + Q_PROPERTY(QFxItem *item READ layoutItem NOTIFY layoutItemChanged) +public: + enum AutoUpdateType { None = 0x0, Horizontal = 0x1, Vertical = 0x2, Both = 0x3 }; + QFxBasePositioner(AutoUpdateType, QFxItem *parent); + + int spacing() const; + void setSpacing(int); + + int margin() const; + void setMargin(int); + + QmlTransition *move() const; + void setMove(QmlTransition *); + + QmlTransition *add() const; + void setAdd(QmlTransition *); + + QmlTransition *remove() const; + void setRemove(QmlTransition *); + + QFxItem *layoutItem() const; + +protected: + virtual void componentComplete(); + virtual QVariant itemChange(GraphicsItemChange, const QVariant &); + virtual bool event(QEvent *); + QSet<QFxItem *>* newItems(); + QSet<QFxItem *>* leavingItems(); + QSet<QFxItem *>* items(); + void applyAdd(const QList<QPair<QString, QVariant> >& changes, QFxItem* target); + void applyMove(const QList<QPair<QString, QVariant> >& changes, QFxItem* target); + void applyRemove(const QList<QPair<QString, QVariant> >& changes, QFxItem* target); + void finishApplyTransitions(); + +Q_SIGNALS: + void layoutItemChanged(); + +protected Q_SLOTS: + virtual void doLayout()=0; + void setLayoutItem(QFxItem *); + +private Q_SLOTS: + void preLayout(); + +protected: + QFxBasePositioner(QFxBasePositionerPrivate &dd, AutoUpdateType at, QFxItem *parent); + void setMovingItem(QFxItem *); + +private: + void applyTransition(const QList<QPair<QString, QVariant> >& changes, QFxItem* target, + QmlStateOperation::ActionList &actions); + Q_DISABLE_COPY(QFxBasePositioner) + Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr, QFxBasePositioner) +}; + +class Q_DECLARATIVE_EXPORT QFxVerticalPositioner : public QFxBasePositioner +{ + Q_OBJECT +public: + QFxVerticalPositioner(QFxItem *parent=0); +protected Q_SLOTS: + virtual void doLayout(); +private: + Q_DISABLE_COPY(QFxVerticalPositioner) +}; + +class Q_DECLARATIVE_EXPORT QFxHorizontalPositioner: public QFxBasePositioner +{ + Q_OBJECT +public: + QFxHorizontalPositioner(QFxItem *parent=0); +protected Q_SLOTS: + virtual void doLayout(); +private: + Q_DISABLE_COPY(QFxHorizontalPositioner) +}; + +class Q_DECLARATIVE_EXPORT QFxGridPositioner : public QFxBasePositioner +{ + Q_OBJECT + Q_PROPERTY(int rows READ rows WRITE setRows) + Q_PROPERTY(int columns READ columns WRITE setcolumns) +public: + QFxGridPositioner(QFxItem *parent=0); + + int rows() const {return _rows;} + void setRows(const int rows){_rows = rows;} + + int columns() const {return _columns;} + void setcolumns(const int columns){_columns = columns;} +protected Q_SLOTS: + virtual void doLayout(); + +private: + int _rows; + int _columns; + Q_DISABLE_COPY(QFxGridPositioner) +}; + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QFxVerticalPositioner) +QML_DECLARE_TYPE(QFxHorizontalPositioner) +QML_DECLARE_TYPE(QFxGridPositioner) + +QT_END_HEADER + +#endif |