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     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtGui module of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

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    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QHEADERVIEW_H

    43 #define QHEADERVIEW_H

    44 

    45 #include <QtGui/qabstractitemview.h>

    46 

    47 QT_BEGIN_HEADER

    48 

    49 QT_BEGIN_NAMESPACE

    50 

    51 QT_MODULE(Gui)

    52 

    53 #ifndef QT_NO_ITEMVIEWS

    54 

    55 class QHeaderViewPrivate;

    56 class QStyleOptionHeader;

    57 

    58 class Q_GUI_EXPORT QHeaderView : public QAbstractItemView

    59 {

    60     Q_OBJECT

    61     Q_PROPERTY(bool showSortIndicator READ isSortIndicatorShown WRITE setSortIndicatorShown)

    62     Q_PROPERTY(bool highlightSections READ highlightSections WRITE setHighlightSections)

    63     Q_PROPERTY(bool stretchLastSection READ stretchLastSection WRITE setStretchLastSection)

    64     Q_PROPERTY(bool cascadingSectionResizes READ cascadingSectionResizes WRITE setCascadingSectionResizes)

    65     Q_PROPERTY(int defaultSectionSize READ defaultSectionSize WRITE setDefaultSectionSize)

    66     Q_PROPERTY(int minimumSectionSize READ minimumSectionSize WRITE setMinimumSectionSize)

    67     Q_PROPERTY(Qt::Alignment defaultAlignment READ defaultAlignment WRITE setDefaultAlignment)

    68     Q_ENUMS(ResizeMode)

    69 

    70 public:

    71 

    72     enum ResizeMode

    73     {

    74         Interactive,

    75         Stretch,

    76         Fixed,

    77         ResizeToContents,

    78         Custom = Fixed

    79     };

    80 

    81     explicit QHeaderView(Qt::Orientation orientation, QWidget *parent = 0);

    82     virtual ~QHeaderView();

    83 

    84     void setModel(QAbstractItemModel *model);

    85 

    86     Qt::Orientation orientation() const;

    87     int offset() const;

    88     int length() const;

    89     QSize sizeHint() const;

    90     int sectionSizeHint(int logicalIndex) const;

    91 

    92     int visualIndexAt(int position) const;

    93     int logicalIndexAt(int position) const;

    94 

    95     inline int logicalIndexAt(int x, int y) const;

    96     inline int logicalIndexAt(const QPoint &pos) const;

    97 

    98     int sectionSize(int logicalIndex) const;

    99     int sectionPosition(int logicalIndex) const;

   100     int sectionViewportPosition(int logicalIndex) const;

   101 

   102     void moveSection(int from, int to);

   103     void swapSections(int first, int second);

   104     void resizeSection(int logicalIndex, int size);

   105     void resizeSections(QHeaderView::ResizeMode mode);

   106 

   107     bool isSectionHidden(int logicalIndex) const;

   108     void setSectionHidden(int logicalIndex, bool hide);

   109     int hiddenSectionCount() const;

   110 

   111     inline void hideSection(int logicalIndex);

   112     inline void showSection(int logicalIndex);

   113 

   114     int count() const;

   115     int visualIndex(int logicalIndex) const;

   116     int logicalIndex(int visualIndex) const;

   117 

   118     void setMovable(bool movable);

   119     bool isMovable() const;

   120 

   121     void setClickable(bool clickable);

   122     bool isClickable() const;

   123 

   124     void setHighlightSections(bool highlight);

   125     bool highlightSections() const;

   126 

   127     void setResizeMode(ResizeMode mode);

   128     void setResizeMode(int logicalIndex, ResizeMode mode);

   129     ResizeMode resizeMode(int logicalIndex) const;

   130     int stretchSectionCount() const;

   131 

   132     void setSortIndicatorShown(bool show);

   133     bool isSortIndicatorShown() const;

   134 

   135     void setSortIndicator(int logicalIndex, Qt::SortOrder order);

   136     int sortIndicatorSection() const;

   137     Qt::SortOrder sortIndicatorOrder() const;

   138 

   139     bool stretchLastSection() const;

   140     void setStretchLastSection(bool stretch);

   141 

   142     bool cascadingSectionResizes() const;

   143     void setCascadingSectionResizes(bool enable);

   144 

   145     int defaultSectionSize() const;

   146     void setDefaultSectionSize(int size);

   147 

   148     int minimumSectionSize() const;

   149     void setMinimumSectionSize(int size);

   150 

   151     Qt::Alignment defaultAlignment() const;

   152     void setDefaultAlignment(Qt::Alignment alignment);

   153 

   154     void doItemsLayout();

   155     bool sectionsMoved() const;

   156     bool sectionsHidden() const;

   157 

   158 #ifndef QT_NO_DATASTREAM

   159     QByteArray saveState() const;

   160     bool restoreState(const QByteArray &state);

   161 #endif

   162 

   163     void reset();

   164 

   165 public Q_SLOTS:

   166     void setOffset(int offset);

   167     void setOffsetToSectionPosition(int visualIndex);

   168     void setOffsetToLastSection();

   169     void headerDataChanged(Qt::Orientation orientation, int logicalFirst, int logicalLast);

   170 

   171 Q_SIGNALS:

   172     void sectionMoved(int logicalIndex, int oldVisualIndex, int newVisualIndex);

   173     void sectionResized(int logicalIndex, int oldSize, int newSize);

   174     void sectionPressed(int logicalIndex);

   175     void sectionClicked(int logicalIndex);

   176     void sectionEntered(int logicalIndex);

   177     void sectionDoubleClicked(int logicalIndex);

   178     void sectionCountChanged(int oldCount, int newCount);

   179     void sectionHandleDoubleClicked(int logicalIndex);

   180     void sectionAutoResize(int logicalIndex, QHeaderView::ResizeMode mode);

   181     void geometriesChanged();

   182     void sortIndicatorChanged(int logicalIndex, Qt::SortOrder order);

   183 

   184 protected Q_SLOTS:

   185     void updateSection(int logicalIndex);

   186     void resizeSections();

   187     void sectionsInserted(const QModelIndex &parent, int logicalFirst, int logicalLast);

   188     void sectionsAboutToBeRemoved(const QModelIndex &parent, int logicalFirst, int logicalLast);

   189 

   190 protected:

   191     QHeaderView(QHeaderViewPrivate &dd, Qt::Orientation orientation, QWidget *parent = 0);

   192     void initialize();

   193 

   194     void initializeSections();

   195     void initializeSections(int start, int end);

   196     void currentChanged(const QModelIndex &current, const QModelIndex &old);

   197 

   198     bool event(QEvent *e);

   199     void paintEvent(QPaintEvent *e);

   200     void mousePressEvent(QMouseEvent *e);

   201     void mouseMoveEvent(QMouseEvent *e);

   202     void mouseReleaseEvent(QMouseEvent *e);

   203     void mouseDoubleClickEvent(QMouseEvent *e);

   204     bool viewportEvent(QEvent *e);

   205 

   206     virtual void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const;

   207     virtual QSize sectionSizeFromContents(int logicalIndex) const;

   208 

   209     int horizontalOffset() const;

   210     int verticalOffset() const;

   211     void updateGeometries();

   212     void scrollContentsBy(int dx, int dy);

   213 

   214     void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);

   215     void rowsInserted(const QModelIndex &parent, int start, int end);

   216 

   217     QRect visualRect(const QModelIndex &index) const;

   218     void scrollTo(const QModelIndex &index, ScrollHint hint);

   219 

   220     QModelIndex indexAt(const QPoint &p) const;

   221     bool isIndexHidden(const QModelIndex &index) const;

   222 

   223     QModelIndex moveCursor(CursorAction, Qt::KeyboardModifiers);

   224     void setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags flags);

   225     QRegion visualRegionForSelection(const QItemSelection &selection) const;

   226     void initStyleOption(QStyleOptionHeader *option) const;

   227 

   228 private:

   229     Q_PRIVATE_SLOT(d_func(), void _q_sectionsRemoved(const QModelIndex &parent, int logicalFirst, int logicalLast))

   230     Q_PRIVATE_SLOT(d_func(), void _q_layoutAboutToBeChanged())

   231     Q_DECLARE_PRIVATE(QHeaderView)

   232     Q_DISABLE_COPY(QHeaderView)

   233 };

   234 

   235 inline int QHeaderView::logicalIndexAt(int ax, int ay) const

   236 { return orientation() == Qt::Horizontal ? logicalIndexAt(ax) : logicalIndexAt(ay); }

   237 inline int QHeaderView::logicalIndexAt(const QPoint &apos) const

   238 { return logicalIndexAt(apos.x(), apos.y()); }

   239 inline void QHeaderView::hideSection(int alogicalIndex)

   240 { setSectionHidden(alogicalIndex, true); }

   241 inline void QHeaderView::showSection(int alogicalIndex)

   242 { setSectionHidden(alogicalIndex, false); }

   243 

   244 #endif // QT_NO_ITEMVIEWS

   245 

   246 QT_END_NAMESPACE

   247 

   248 QT_END_HEADER

   249 

   250 #endif // QHEADERVIEW_H