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    41 

    42 #ifndef QSPLITTER_P_H

    43 #define QSPLITTER_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include "private/qframe_p.h"

    57 #include "qrubberband.h"

    58 

    59 QT_BEGIN_NAMESPACE

    60 

    61 static const uint Default = 2;

    62 

    63 class QSplitterLayoutStruct

    64 {

    65 public:

    66     QRect rect;

    67     int sizer;

    68     uint collapsed : 1;

    69     uint collapsible : 2;

    70     QWidget *widget;

    71     QSplitterHandle *handle;

    72 

    73     QSplitterLayoutStruct() : sizer(-1), collapsed(false), collapsible(Default), widget(0), handle(0) {}

    74     ~QSplitterLayoutStruct() { delete handle; }

    75     int getWidgetSize(Qt::Orientation orient);

    76     int getHandleSize(Qt::Orientation orient);

    77     int pick(const QSize &size, Qt::Orientation orient)

    78     { return (orient == Qt::Horizontal) ? size.width() : size.height(); }

    79 };

    80 

    81 class QSplitterPrivate : public QFramePrivate

    82 {

    83     Q_DECLARE_PUBLIC(QSplitter)

    84 public:

    85     QSplitterPrivate() : rubberBand(0), opaque(true), firstShow(true),

    86                          childrenCollapsible(true), compatMode(false), handleWidth(0), blockChildAdd(false) {}

    87 

    88     QPointer<QRubberBand> rubberBand;

    89     mutable QList<QSplitterLayoutStruct *> list;

    90     Qt::Orientation orient;

    91     bool opaque : 8;

    92     bool firstShow : 8;

    93     bool childrenCollapsible : 8;

    94     bool compatMode : 8;

    95     int handleWidth;

    96     bool blockChildAdd;

    97 

    98     inline int pick(const QPoint &pos) const

    99     { return orient == Qt::Horizontal ? pos.x() : pos.y(); }

   100     inline int pick(const QSize &s) const

   101     { return orient == Qt::Horizontal ? s.width() : s.height(); }

   102 

   103     inline int trans(const QPoint &pos) const

   104     { return orient == Qt::Vertical ? pos.x() : pos.y(); }

   105     inline int trans(const QSize &s) const

   106     { return orient == Qt::Vertical ? s.width() : s.height(); }

   107 

   108     void init();

   109     void recalc(bool update = false);

   110     void doResize();

   111     void storeSizes();

   112     void getRange(int index, int *, int *, int *, int *) const;

   113     void addContribution(int, int *, int *, bool) const;

   114     int adjustPos(int, int, int *, int *, int *, int *) const;

   115     bool collapsible(QSplitterLayoutStruct *) const;

   116     bool collapsible(int index) const

   117     { return (index < 0 || index >= list.size()) ? true : collapsible(list.at(index)); }

   118     QSplitterLayoutStruct *findWidget(QWidget *) const;

   119     void insertWidget_helper(int index, QWidget *widget, bool show);

   120     QSplitterLayoutStruct *insertWidget(int index, QWidget *);

   121     void doMove(bool backwards, int pos, int index, int delta,

   122                 bool mayCollapse, int *positions, int *widths);

   123     void setGeo(QSplitterLayoutStruct *s, int pos, int size, bool allowCollapse);

   124     int findWidgetJustBeforeOrJustAfter(int index, int delta, int &collapsibleSize) const;

   125     void updateHandles();

   126     void setSizes_helper(const QList<int> &sizes, bool clampNegativeSize = false);

   127 

   128 };

   129 

   130 class QSplitterHandlePrivate : public QWidgetPrivate

   131 {

   132     Q_DECLARE_PUBLIC(QSplitterHandle)

   133 public:

   134     QSplitterHandlePrivate() : s(0), orient(Qt::Horizontal), mouseOffset(0), opaq(false), hover(false), pressed(false) {}

   135 

   136     inline int pick(const QPoint &pos) const

   137     { return orient == Qt::Horizontal ? pos.x() : pos.y(); }

   138 

   139     QSplitter *s;

   140     Qt::Orientation orient;

   141     int mouseOffset;

   142     bool opaq    : 1;

   143     bool hover   : 1;

   144     bool pressed : 1;

   145 };

   146 

   147 QT_END_NAMESPACE

   148 

   149 #endif