ojanuswidget.h

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/*
                             This file is part of the Opie Project

                             Copyright (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
                             Copyright (C) 1999-2000 Espen Sand (espen@kde.org)
              =.
            .=l.
           .>+-=
 _;:,     .>    :=|.         This program is free software; you can
.> <`_,   >  .   <=          redistribute it and/or  modify it under
:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
.="- .-=="i,     .._         License as published by the Free Software
 - .   .-<_>     .<>         Foundation; either version 2 of the License,
     ._= =}       :          or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s.       This program 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
..}^=.=       =       ;      Library General Public License for more
++=   -.     .`     .:       details.
 :     =  ...= . :.=-
 -.   .:....=;==+<;          You should have received a copy of the GNU
  -_. . .   )=.  =           Library General Public License along with
    --        :-=`           this library; see the file COPYING.LIB.
                             If not, write to the Free Software Foundation,
                             Inc., 59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.

*/

#ifndef OJANUSWIDGET_H
#define OJANUSWIDGET_H

#include <qptrlist.h>
#include <qpixmap.h>
#include <qlistbox.h>
#include <qmap.h>
#include <qsplitter.h>
#include <qstringlist.h>

class QGrid;
class QHBox;
class QLabel;
class QTabWidget;
class QVBox;
class QWidgetStack;
class OSeparator;
class QListView;
class QListViewItem;

class OJanusWidget : public QWidget
{
  Q_OBJECT

  private:
    
    class IconListBox : public QListBox
    {
      public:
        IconListBox( QWidget *parent=0, const char *name=0, WFlags f=0 );
        void updateMinimumHeight();
        void updateWidth();
        void invalidateHeight();
        void invalidateWidth();
        void setShowAll( bool showAll );

      private:
        bool mShowAll;
        bool mHeightValid;
        bool mWidthValid;
    };

  public:
    
    enum Face
    {
      TreeList = 0,
      Tabbed,
      Plain,
      Swallow,
      IconList
    };

  public:

    OJanusWidget( QWidget *parent=0, const char *name=0, int face=Plain );

    ~OJanusWidget();

    virtual bool showPage( int index );

    virtual int  activePageIndex() const;

    virtual bool isValid() const;

    virtual int face() const;

    virtual QSize minimumSizeHint() const;

    virtual QSize sizeHint() const;

    virtual QFrame *plainPage();

    virtual QFrame *addPage(const QString &item,const QString &header=QString::null,
                    const QPixmap &pixmap=QPixmap() );

     virtual QFrame *addPage(const QStringList &items, const QString &header=QString::null,
                    const QPixmap &pixmap=QPixmap() );

    virtual QVBox *addVBoxPage( const QString &item,
                        const QString &header=QString::null,
                        const QPixmap &pixmap=QPixmap() );

    virtual QVBox *addVBoxPage( const QStringList &items,
                        const QString &header=QString::null,
                        const QPixmap &pixmap=QPixmap() );

    virtual QHBox *addHBoxPage( const QString &itemName,
                        const QString &header=QString::null,
                        const QPixmap &pixmap=QPixmap() );

    virtual QHBox *addHBoxPage( const QStringList &items,
                        const QString &header=QString::null,
                        const QPixmap &pixmap=QPixmap() );

    virtual QGrid *addGridPage( int n, Orientation dir,
                        const QString &itemName,
                        const QString &header=QString::null,
                        const QPixmap &pixmap=QPixmap() );

    virtual QGrid *addGridPage( int n, Orientation dir,
                        const QStringList &items,
                        const QString &header=QString::null,
                        const QPixmap &pixmap=QPixmap() );

    void removePage( QWidget *page );


    virtual int pageIndex( QWidget *widget ) const;

    virtual bool setSwallowedWidget( QWidget *widget );

    virtual void setTreeListAutoResize( bool state );

    virtual void setShowIconsInTreeList(bool state);

    virtual void setRootIsDecorated( bool state );

    /*virtual*/ void unfoldTreeList( bool persist = false ); //### KDE4 BIC add virtual

    virtual void setIconListAllVisible( bool state );

    virtual void setFolderIcon(const QStringList &path, const QPixmap &pixmap);

  signals:
    void aboutToShowPage(QWidget *page);

  public slots:
    virtual void setFocus();

  protected:
    virtual void showEvent( QShowEvent * );

    virtual bool eventFilter( QObject *o, QEvent *e );

  private slots:
    bool slotShowPage();
    void slotFontChanged();
    void slotItemClicked(QListViewItem *it);
    void pageGone(QObject *obj); // signal from the added page's "destroyed" signal
    void slotReopen(QListViewItem *item);

  protected:
    bool showPage( QWidget *w );
    void addPageWidget( QFrame *page, const QStringList &items,
                        const QString &header, const QPixmap &pixmap );
    void InsertTreeListItem(const QStringList &items, const QPixmap &pixmap, QFrame *page);
    QWidget *FindParent();

  private:
    bool mValid;

    QPtrList<QWidget> *mPageList;
    QStringList *mTitleList;

    int          mFace;
    QListView    *mTreeList;
    IconListBox  *mIconList;
    QWidgetStack *mPageStack;
    QLabel       *mTitleLabel;
    QTabWidget   *mTabControl;
    QFrame       *mPlainPage;
    QWidget      *mSwallowPage;
    QWidget      *mActivePageWidget;
    OSeparator   *mTitleSep;
    QSplitter::ResizeMode mTreeListResizeMode;
    bool         mShowIconsInTreeList;
    QMap<QListViewItem *, QWidget *> mTreeListToPageStack;
    QMap<QListBoxItem *, QWidget *> mIconListToPageStack;
    QMap<QString, QPixmap> mFolderIconMap;
    QMap<QString, QStringList> mChildrenNames;
    QMap<QString, QWidget *> mChildPages;

  public:
    class IconListItem;
  
  private:
    class OJanusWidgetPrivate;
    OJanusWidgetPrivate *d;
};

#endif

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