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Diffstat (limited to 'src/declarative/widgets/graphicslayouts_p.h')
| -rw-r--r-- | src/declarative/widgets/graphicslayouts_p.h | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/declarative/widgets/graphicslayouts_p.h b/src/declarative/widgets/graphicslayouts_p.h new file mode 100644 index 0000000..9eeac24 --- /dev/null +++ b/src/declarative/widgets/graphicslayouts_p.h @@ -0,0 +1,193 @@ +/**************************************************************************** +** +** 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 GRAPHICSLAYOUTS_H +#define GRAPHICSLAYOUTS_H + +#include <private/graphicswidgets_p.h> +#include <QtGui/QGraphicsLinearLayout> +#include <QtGui/QGraphicsGridLayout> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +class QGraphicsLinearLayoutStretchItemObject : public QObject, public QGraphicsLayoutItem +{ + Q_OBJECT + Q_INTERFACES(QGraphicsLayoutItem) +public: + QGraphicsLinearLayoutStretchItemObject(QObject *parent = 0); + + virtual QSizeF sizeHint(Qt::SizeHint, const QSizeF &) const; +}; + +//TODO: +// -content margins +// -per-item spacing (does this need to be exposed?) +// -per-item alignment +class LinearLayoutAttached; +class QGraphicsLinearLayoutObject : public QObject, public QGraphicsLinearLayout +{ + Q_OBJECT + Q_INTERFACES(QGraphicsLayout QGraphicsLayoutItem) + + Q_PROPERTY(QmlList<QGraphicsLayoutItem *> *children READ children) + Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation) + Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing) + Q_CLASSINFO("DefaultProperty", "children") +public: + QGraphicsLinearLayoutObject(QObject * = 0); + ~QGraphicsLinearLayoutObject(); + + QmlList<QGraphicsLayoutItem *> *children() { return &_children; } + + static LinearLayoutAttached *qmlAttachedProperties(QObject *); + +private Q_SLOTS: + void updateStretch(QGraphicsLayoutItem*,int); + void updateAlignment(QGraphicsLayoutItem*,Qt::Alignment); + +private: + friend class LinearLayoutAttached; + void clearChildren(); + void insertLayoutItem(int, QGraphicsLayoutItem *); + static QHash<QGraphicsLayoutItem*, LinearLayoutAttached*> attachedProperties; + + class ChildList : public QmlList<QGraphicsLayoutItem *> + { + public: + ChildList(QGraphicsLinearLayoutObject *o) + : obj(o) {} + + virtual void append(QGraphicsLayoutItem *item) + { + insert(-1, item); + } + virtual void clear() { obj->clearChildren(); } + virtual int count() const { return obj->count(); } + virtual void removeAt(int i) { obj->removeAt(i); } + virtual QGraphicsLayoutItem *at(int i) const { return obj->itemAt(i); } + virtual void insert(int i, QGraphicsLayoutItem *item) { obj->insertLayoutItem(i, item); } + + private: + QGraphicsLinearLayoutObject *obj; + }; + + ChildList _children; +}; + +//TODO: +// -content margins +// -column and row specific settings: +// -alignment +// -fixed/min/max/preferred width +// -spacing +// -stretch +class GridLayoutAttached; +class QGraphicsGridLayoutObject : public QObject, public QGraphicsGridLayout +{ + Q_OBJECT + Q_INTERFACES(QGraphicsLayout QGraphicsLayoutItem) + + Q_PROPERTY(QmlList<QGraphicsLayoutItem *> *children READ children) + Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing) + Q_PROPERTY(qreal verticalSpacing READ verticalSpacing WRITE setVerticalSpacing) + Q_PROPERTY(qreal horizontalSpacing READ horizontalSpacing WRITE setHorizontalSpacing) + Q_CLASSINFO("DefaultProperty", "children") +public: + QGraphicsGridLayoutObject(QObject * = 0); + ~QGraphicsGridLayoutObject(); + + QmlList<QGraphicsLayoutItem *> *children() { return &_children; } + + qreal spacing() const; + + static GridLayoutAttached *qmlAttachedProperties(QObject *); + +private: + friend class GraphicsLayoutAttached; + void addWidget(QGraphicsWidget *); + void clearChildren(); + void addLayoutItem(QGraphicsLayoutItem *); + static QHash<QGraphicsLayoutItem*, GridLayoutAttached*> attachedProperties; + + class ChildList : public QmlList<QGraphicsLayoutItem *> + { + public: + ChildList(QGraphicsGridLayoutObject *o) + : obj(o) {} + + virtual void append(QGraphicsLayoutItem *o) + { + obj->addLayoutItem(o); + } + virtual void clear() { obj->clearChildren(); } + virtual int count() const { return obj->count(); } + virtual void removeAt(int i) { obj->removeAt(i); } + virtual QGraphicsLayoutItem *at(int i) const { return obj->itemAt(i); } + //XXX GridLayout doesn't have an insert, so for now we treat it as an append. + // this is obviously potenitally dangerous -- perhaps should be a concrete + // list with no relation to layout index, etc at all. + virtual void insert(int, QGraphicsLayoutItem *item) { append(item); } + + private: + QGraphicsGridLayoutObject *obj; + }; + + ChildList _children; +}; + +QT_END_NAMESPACE + +QML_DECLARE_INTERFACE(QGraphicsLayoutItem) +QML_DECLARE_INTERFACE(QGraphicsLayout) +QML_DECLARE_TYPE(QGraphicsLinearLayoutStretchItemObject) +QML_DECLARE_TYPE(QGraphicsLinearLayoutObject) +QML_DECLARE_TYPEINFO(QGraphicsLinearLayoutObject, QML_HAS_ATTACHED_PROPERTIES) +QML_DECLARE_TYPE(QGraphicsGridLayoutObject) +QML_DECLARE_TYPEINFO(QGraphicsGridLayoutObject, QML_HAS_ATTACHED_PROPERTIES) + +QT_END_HEADER + +#endif // GRAPHICSLAYOUTS_H |