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Diffstat (limited to 'src/declarative/items/qsgpositioners_p.h')
| -rw-r--r-- | src/declarative/items/qsgpositioners_p.h | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/src/declarative/items/qsgpositioners_p.h b/src/declarative/items/qsgpositioners_p.h new file mode 100644 index 0000000000..eb0e73456b --- /dev/null +++ b/src/declarative/items/qsgpositioners_p.h @@ -0,0 +1,242 @@ +// Commit: 2c7cab4172f1acc86fd49345a2847417e162f2c3 +/**************************************************************************** +** +** Copyright (C) 2011 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 QSGPOSITIONERS_P_H +#define QSGPOSITIONERS_P_H + +#include "qsgimplicitsizeitem_p.h" + +#include <private/qdeclarativestate_p.h> +#include <private/qpodvector_p.h> + +#include <QtCore/qobject.h> +#include <QtCore/qstring.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +class QSGBasePositionerPrivate; + +class Q_DECLARATIVE_PRIVATE_EXPORT QSGBasePositioner : public QSGImplicitSizeItem +{ + 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 }; + QSGBasePositioner(PositionerType, QSGItem *parent); + ~QSGBasePositioner(); + + int spacing() const; + void setSpacing(int); + + QDeclarativeTransition *move() const; + void setMove(QDeclarativeTransition *); + + QDeclarativeTransition *add() const; + void setAdd(QDeclarativeTransition *); + +protected: + QSGBasePositioner(QSGBasePositionerPrivate &dd, PositionerType at, QSGItem *parent); + virtual void componentComplete(); + virtual void itemChange(ItemChange, const ItemChangeData &); + void finishApplyTransitions(); + +Q_SIGNALS: + void spacingChanged(); + void moveChanged(); + void addChanged(); + +protected Q_SLOTS: + void prePositioning(); + +protected: + virtual void doPositioning(QSizeF *contentSize)=0; + virtual void reportConflictingAnchors()=0; + class PositionedItem { + public : + PositionedItem(QSGItem *i) : item(i), isNew(false), isVisible(true) {} + bool operator==(const PositionedItem &other) const { return other.item == item; } + QSGItem *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(QSGBasePositioner) + Q_DECLARE_PRIVATE(QSGBasePositioner) +}; + +class Q_AUTOTEST_EXPORT QSGColumn : public QSGBasePositioner +{ + Q_OBJECT +public: + QSGColumn(QSGItem *parent=0); +protected: + virtual void doPositioning(QSizeF *contentSize); + virtual void reportConflictingAnchors(); +private: + Q_DISABLE_COPY(QSGColumn) +}; + +class Q_AUTOTEST_EXPORT QSGRow: public QSGBasePositioner +{ + Q_OBJECT + Q_PROPERTY(Qt::LayoutDirection layoutDirection READ layoutDirection WRITE setLayoutDirection NOTIFY layoutDirectionChanged) + Q_PROPERTY(Qt::LayoutDirection effectiveLayoutDirection READ effectiveLayoutDirection NOTIFY effectiveLayoutDirectionChanged) +public: + QSGRow(QSGItem *parent=0); + + Qt::LayoutDirection layoutDirection() const; + void setLayoutDirection (Qt::LayoutDirection); + Qt::LayoutDirection effectiveLayoutDirection() const; + +Q_SIGNALS: + void layoutDirectionChanged(); + void effectiveLayoutDirectionChanged(); + +protected: + virtual void doPositioning(QSizeF *contentSize); + virtual void reportConflictingAnchors(); +private: + Q_DISABLE_COPY(QSGRow) +}; + +class Q_AUTOTEST_EXPORT QSGGrid : public QSGBasePositioner +{ + Q_OBJECT + Q_PROPERTY(int rows READ rows WRITE setRows NOTIFY rowsChanged) + Q_PROPERTY(int columns READ columns WRITE setColumns NOTIFY columnsChanged) + Q_PROPERTY(Flow flow READ flow WRITE setFlow NOTIFY flowChanged) + Q_PROPERTY(Qt::LayoutDirection layoutDirection READ layoutDirection WRITE setLayoutDirection NOTIFY layoutDirectionChanged) + Q_PROPERTY(Qt::LayoutDirection effectiveLayoutDirection READ effectiveLayoutDirection NOTIFY effectiveLayoutDirectionChanged) + +public: + QSGGrid(QSGItem *parent=0); + + int rows() const {return m_rows;} + void setRows(const int rows); + + int columns() const {return m_columns;} + void setColumns(const int columns); + + Q_ENUMS(Flow) + enum Flow { LeftToRight, TopToBottom }; + Flow flow() const; + void setFlow(Flow); + + Qt::LayoutDirection layoutDirection() const; + void setLayoutDirection (Qt::LayoutDirection); + Qt::LayoutDirection effectiveLayoutDirection() const; + +Q_SIGNALS: + void rowsChanged(); + void columnsChanged(); + void flowChanged(); + void layoutDirectionChanged(); + void effectiveLayoutDirectionChanged(); + +protected: + virtual void doPositioning(QSizeF *contentSize); + virtual void reportConflictingAnchors(); + +private: + int m_rows; + int m_columns; + Flow m_flow; + Q_DISABLE_COPY(QSGGrid) +}; + +class QSGFlowPrivate; +class Q_AUTOTEST_EXPORT QSGFlow: public QSGBasePositioner +{ + Q_OBJECT + Q_PROPERTY(Flow flow READ flow WRITE setFlow NOTIFY flowChanged) + Q_PROPERTY(Qt::LayoutDirection layoutDirection READ layoutDirection WRITE setLayoutDirection NOTIFY layoutDirectionChanged) + Q_PROPERTY(Qt::LayoutDirection effectiveLayoutDirection READ effectiveLayoutDirection NOTIFY effectiveLayoutDirectionChanged) +public: + QSGFlow(QSGItem *parent=0); + + Q_ENUMS(Flow) + enum Flow { LeftToRight, TopToBottom }; + Flow flow() const; + void setFlow(Flow); + + Qt::LayoutDirection layoutDirection() const; + void setLayoutDirection (Qt::LayoutDirection); + Qt::LayoutDirection effectiveLayoutDirection() const; + +Q_SIGNALS: + void flowChanged(); + void layoutDirectionChanged(); + void effectiveLayoutDirectionChanged(); + +protected: + virtual void doPositioning(QSizeF *contentSize); + virtual void reportConflictingAnchors(); +protected: + QSGFlow(QSGFlowPrivate &dd, QSGItem *parent); +private: + Q_DISABLE_COPY(QSGFlow) + Q_DECLARE_PRIVATE(QSGFlow) +}; + + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QSGColumn) +QML_DECLARE_TYPE(QSGRow) +QML_DECLARE_TYPE(QSGGrid) +QML_DECLARE_TYPE(QSGFlow) + +QT_END_HEADER + +#endif // QSGPOSITIONERS_P_H |