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246 lines
7.6 KiB
246 lines
7.6 KiB
14 years ago
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QLAYOUT_H
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#define QLAYOUT_H
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#include <QtCore/qobject.h>
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#include <QtGui/qlayoutitem.h>
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#include <QtGui/qsizepolicy.h>
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#include <QtCore/qrect.h>
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#include <QtCore/qmargins.h>
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#include <limits.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Gui)
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class QLayout;
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class QSize;
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#ifdef QT3_SUPPORT
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class Q_GUI_EXPORT QLayoutIterator
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{
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public:
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inline QT3_SUPPORT_CONSTRUCTOR QLayoutIterator(QLayout *i) : layout(i), index(0) {}
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inline QLayoutIterator(const QLayoutIterator &i)
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: layout(i.layout), index(i.index) {}
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inline QLayoutIterator &operator=(const QLayoutIterator &i) {
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layout = i.layout;
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index = i.index;
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return *this;
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}
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inline QT3_SUPPORT QLayoutItem *operator++();
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inline QT3_SUPPORT QLayoutItem *current();
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inline QT3_SUPPORT QLayoutItem *takeCurrent();
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inline QT3_SUPPORT void deleteCurrent();
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private:
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// hack to avoid deprecated warning
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friend class QLayout;
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inline QLayoutIterator(QLayout *i, bool) : layout(i), index(0) {}
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QLayout *layout;
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int index;
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};
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#endif
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class QLayoutPrivate;
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class Q_GUI_EXPORT QLayout : public QObject, public QLayoutItem
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{
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Q_OBJECT
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Q_DECLARE_PRIVATE(QLayout)
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Q_ENUMS(SizeConstraint)
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Q_PROPERTY(int margin READ margin WRITE setMargin)
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Q_PROPERTY(int spacing READ spacing WRITE setSpacing)
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Q_PROPERTY(SizeConstraint sizeConstraint READ sizeConstraint WRITE setSizeConstraint)
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public:
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enum SizeConstraint {
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SetDefaultConstraint,
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SetNoConstraint,
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SetMinimumSize,
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SetFixedSize,
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SetMaximumSize,
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SetMinAndMaxSize
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#if defined(QT3_SUPPORT) && !defined(Q_MOC_RUN)
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, Auto = SetDefaultConstraint,
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FreeResize = SetNoConstraint,
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Minimum = SetMinimumSize,
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Fixed = SetFixedSize
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#endif
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};
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QLayout(QWidget *parent);
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QLayout();
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~QLayout();
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int margin() const;
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int spacing() const;
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void setMargin(int);
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void setSpacing(int);
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void setContentsMargins(int left, int top, int right, int bottom);
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void setContentsMargins(const QMargins &margins);
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void getContentsMargins(int *left, int *top, int *right, int *bottom) const;
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QMargins contentsMargins() const;
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QRect contentsRect() const;
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bool setAlignment(QWidget *w, Qt::Alignment alignment);
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bool setAlignment(QLayout *l, Qt::Alignment alignment);
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#ifdef Q_NO_USING_KEYWORD
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inline void setAlignment(Qt::Alignment alignment) { QLayoutItem::setAlignment(alignment); }
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#else
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using QLayoutItem::setAlignment;
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#endif
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void setSizeConstraint(SizeConstraint);
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SizeConstraint sizeConstraint() const;
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#ifdef QT3_SUPPORT
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inline QT3_SUPPORT void setResizeMode(SizeConstraint s) {setSizeConstraint(s);}
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inline QT3_SUPPORT SizeConstraint resizeMode() const {return sizeConstraint();}
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#endif
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void setMenuBar(QWidget *w);
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QWidget *menuBar() const;
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QWidget *parentWidget() const;
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void invalidate();
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QRect geometry() const;
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bool activate();
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void update();
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void addWidget(QWidget *w);
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virtual void addItem(QLayoutItem *) = 0;
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void removeWidget(QWidget *w);
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void removeItem(QLayoutItem *);
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Qt::Orientations expandingDirections() const;
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QSize minimumSize() const;
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QSize maximumSize() const;
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virtual void setGeometry(const QRect&);
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virtual QLayoutItem *itemAt(int index) const = 0;
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virtual QLayoutItem *takeAt(int index) = 0;
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virtual int indexOf(QWidget *) const;
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virtual int count() const = 0;
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bool isEmpty() const;
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int totalHeightForWidth(int w) const;
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QSize totalMinimumSize() const;
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QSize totalMaximumSize() const;
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QSize totalSizeHint() const;
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QLayout *layout();
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void setEnabled(bool);
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bool isEnabled() const;
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#ifdef QT3_SUPPORT
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QT3_SUPPORT void freeze(int w=0, int h=0);
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QT3_SUPPORT bool isTopLevel() const;
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#endif
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static QSize closestAcceptableSize(const QWidget *w, const QSize &s);
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protected:
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void widgetEvent(QEvent *);
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void childEvent(QChildEvent *e);
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void addChildLayout(QLayout *l);
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void addChildWidget(QWidget *w);
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#ifdef QT3_SUPPORT
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QT3_SUPPORT void deleteAllItems();
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#endif
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QRect alignmentRect(const QRect&) const;
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protected:
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QLayout(QLayoutPrivate &d, QLayout*, QWidget*);
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private:
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Q_DISABLE_COPY(QLayout)
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static void activateRecursiveHelper(QLayoutItem *item);
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friend class QApplicationPrivate;
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friend class QWidget;
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#ifdef QT3_SUPPORT
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public:
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QT3_SUPPORT_CONSTRUCTOR QLayout(QWidget *parent, int margin, int spacing = -1,
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const char *name = 0);
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QT3_SUPPORT_CONSTRUCTOR QLayout(QLayout *parentLayout, int spacing = -1, const char *name = 0);
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QT3_SUPPORT_CONSTRUCTOR QLayout(int spacing, const char *name = 0);
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inline QT3_SUPPORT QWidget *mainWidget() const { return parentWidget(); }
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inline QT3_SUPPORT void remove(QWidget *w) { removeWidget(w); }
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inline QT3_SUPPORT void add(QWidget *w) { addWidget(w); }
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QT3_SUPPORT void setAutoAdd(bool a);
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QT3_SUPPORT bool autoAdd() const;
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inline QT3_SUPPORT QLayoutIterator iterator() { return QLayoutIterator(this,true); }
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inline QT3_SUPPORT int defaultBorder() const { return spacing(); }
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#endif
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};
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#ifdef QT3_SUPPORT
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inline QLayoutItem *QLayoutIterator::operator++() { return layout->itemAt(++index); }
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inline QLayoutItem *QLayoutIterator::current() { return layout->itemAt(index); }
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inline QLayoutItem *QLayoutIterator::takeCurrent() { return layout->takeAt(index); }
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inline void QLayoutIterator::deleteCurrent() { delete layout->takeAt(index); }
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#endif
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//### support old includes
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#if 1 //def QT3_SUPPORT
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QT_BEGIN_INCLUDE_NAMESPACE
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#include <QtGui/qboxlayout.h>
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#include <QtGui/qgridlayout.h>
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QT_END_INCLUDE_NAMESPACE
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#endif
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QLAYOUT_H
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