source: trunk/src/gui/widgets/qtoolbararealayout_p.h@ 735

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#ifndef QTOOLBARAREALAYOUT_P_H
#define QTOOLBARAREALAYOUT_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QList>
#include <QSize>
#include <QRect>

QT_BEGIN_NAMESPACE

static inline int pick(Qt::Orientation o, const QPoint &pos)
{ return o == Qt::Horizontal ? pos.x() : pos.y(); }

static inline int pick(Qt::Orientation o, const QSize &size)
{ return o == Qt::Horizontal ? size.width() : size.height(); }

static inline int &rpick(Qt::Orientation o, QPoint &pos)
{ return o == Qt::Horizontal ? pos.rx() : pos.ry(); }

static inline int &rpick(Qt::Orientation o, QSize &size)
{ return o == Qt::Horizontal ? size.rwidth() : size.rheight(); }

static inline QSizePolicy::Policy pick(Qt::Orientation o, const QSizePolicy &policy)
{ return o == Qt::Horizontal ? policy.horizontalPolicy() : policy.verticalPolicy(); }

static inline int perp(Qt::Orientation o, const QPoint &pos)
{ return o == Qt::Vertical ? pos.x() : pos.y(); }

static inline int perp(Qt::Orientation o, const QSize &size)
{ return o == Qt::Vertical ? size.width() : size.height(); }

static inline int &rperp(Qt::Orientation o, QPoint &pos)
{ return o == Qt::Vertical ? pos.rx() : pos.ry(); }

static inline int &rperp(Qt::Orientation o, QSize &size)
{ return o == Qt::Vertical ? size.rwidth() : size.rheight(); }

#ifndef QT_NO_TOOLBAR

class QToolBar;
class QLayoutItem;
class QMainWindow;
class QStyleOptionToolBar;

class QToolBarAreaLayoutItem
{
public:
    QToolBarAreaLayoutItem(QLayoutItem *item = 0)
        : widgetItem(item), pos(0), size(-1), preferredSize(-1), gap(false) {}

    bool skip() const;
    QSize minimumSize() const;
    QSize sizeHint() const;
    QSize realSizeHint() const;

    void resize(Qt::Orientation o, int newSize)
    {
        newSize = qMax(pick(o, minimumSize()), newSize);
        int sizeh = pick(o, sizeHint());
        if (newSize == sizeh) {
            preferredSize = -1;
            size = sizeh;
        } else {
            preferredSize = newSize;
        }
    }

    void extendSize(Qt::Orientation o, int extent)
    {
        int newSize = qMax(pick(o, minimumSize()), (preferredSize > 0 ? preferredSize : pick(o, sizeHint())) + extent);
        int sizeh = pick(o, sizeHint());
        if (newSize == sizeh) {
            preferredSize = -1;
            size = sizeh;
        } else {
            preferredSize = newSize;
        }
    }

    QLayoutItem *widgetItem;
    int pos;
    int size;
    int preferredSize;
    bool gap;
};

class QToolBarAreaLayoutLine
{
public:
    QToolBarAreaLayoutLine(Qt::Orientation orientation);

    QSize sizeHint() const;
    QSize minimumSize() const;