QY2ListView.h

/*
  Copyright (C) 2000-2012 Novell, Inc
  This library is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as
  published by the Free Software Foundation; either version 2.1 of the
  License, or (at your option) version 3.0 of the License. This library
  is distributed in the hope that it will be useful, but WITHOUT ANY
  WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
  License for more details. You should have received a copy of the GNU
  Lesser General Public License along with this library; if not, write
  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
  Floor, Boston, MA 02110-1301 USA
*/


/*-/

  File:       QY2ListView.h

  Author:     Stefan Hundhammer <shundhammer@suse.de>

  This is a pure Qt widget - it can be used independently of YaST2.

/-*/


#ifndef QY2ListView_h
#define QY2ListView_h

#include <QTreeWidget>
#include <qtooltip.h>
#include <qpoint.h>
#include <qcolor.h>
#include <vector>

#define FIXME_TOOLTIP 0


class QY2ListViewItem;
class QY2ListViewToolTip;


class QY2ListView : public QTreeWidget
{
    Q_OBJECT

public:

    QY2ListView( QWidget * parent );

    virtual ~QY2ListView();


public slots:

    virtual void selectSomething();

    virtual void clear();

    void updateItemStates();

    void updateItemData();

    void saveColumnWidths();

    void restoreColumnWidths();


signals:

    void columnClicked      ( int           button,
                  QTreeWidgetItem * item,
                  int           col,
                  const QPoint &    pos );

    void columnDoubleClicked    ( int           button,
                  QTreeWidgetItem * item,
                  int           col,
                  const QPoint &    pos );


public:

    virtual QString toolTip( QTreeWidgetItem * item, int column );

    bool sortByInsertionSequence() const { return _sortByInsertionSequence; }

    virtual void setSortByInsertionSequence( bool sortByInsertionSequence );

    int nextSerial() { return _nextSerial++; }

    virtual QSize minimumSizeHint() const;

    virtual bool eventFilter( QObject * obj, QEvent * event );


protected slots:

    void columnWidthChanged( int col, int oldSize, int newSize );

    void treeExpanded( QTreeWidgetItem * listViewItem );

    void treeCollapsed( QTreeWidgetItem * listViewItem );


protected:

    virtual void mousePressEvent( QMouseEvent * e );

    virtual void mouseReleaseEvent( QMouseEvent * );

    virtual void mouseDoubleClickEvent( QMouseEvent * );


    //
    // Data members
    //

    QTreeWidgetItem *       _mousePressedItem;
    int             _mousePressedCol;
    Qt::MouseButton     _mousePressedButton;

    std::vector<int>        _savedColumnWidth;
    bool            _sortByInsertionSequence;
    int             _nextSerial;

    QY2ListViewToolTip *    _toolTip;
    bool            _mouseButton1PressedInHeader;
    bool            _finalSizeChangeExpected;
};



class QY2ListViewItem : public QTreeWidgetItem
{
public:

    QY2ListViewItem( QY2ListView *  parentListView,
             const QString &    text = QString() );


    QY2ListViewItem( QTreeWidgetItem *  parentItem,
             const QString &    text = QString() );

    virtual ~QY2ListViewItem();

    virtual void updateStatus() {}

    virtual void updateData() {}

    virtual bool operator< ( const QTreeWidgetItem & other ) const;

    bool sortByInsertionSequence() const;

    int serial() const { return _serial; }

    bool compare(const QString& text1, const QString& text2) const;

    virtual QString smartSortKey(int column) const;

    virtual QString toolTip( int column ) { return QString(); }


protected:

    //
    // Data members
    //

    int     _serial;

    QColor  _textColor;
    QColor  _backgroundColor;
};



class QY2CheckListItem: public QY2ListViewItem
{
public:

    QY2CheckListItem( QY2ListView *         parentListView,
              const QString &       text );


    QY2CheckListItem( QTreeWidgetItem *         parentItem,
              const QString &       text );

    virtual ~QY2CheckListItem();

    virtual void updateStatus() {}

    virtual void updateData() {}

    int serial() const { return _serial; }

    void setTextColor( const QColor & col )
    { _textColor = col; }

    void setBackgroundColor( const QColor & col )
    { _backgroundColor = col; }

    virtual QString toolTip( int column ) { return QString(); }


protected:

    //
    // Data members
    //

    int     _serial;
};


#if FIXME_TOOLTIP

class QY2ListViewToolTip : public QToolTip
{
public:

    QY2ListViewToolTip( QY2ListView * parent )
    : QToolTip( parent->viewport() )
    , _listView( parent )  {}

    virtual ~QY2ListViewToolTip() {}


protected:

    virtual void maybeTip( const QPoint & p );


    //
    // Data members
    //

    QY2ListView * _listView;
};
#endif

#endif // ifndef QY2ListView_h