koagenda.h

/*
    This file is part of KOrganizer.
    Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
    Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
    As a special exception, permission is given to link this program
    with any edition of TQt, and distribute the resulting executable,
    without including the source code for TQt in the source distribution.
*/
#ifndef KOAGENDA_H
#define KOAGENDA_H
 
#include <tqscrollview.h>
#include <tqtimer.h>
#include <tqguardedptr.h>
#include <libkcal/incidencebase.h>
 
#include "calendarview.h"
 
class TQPopupMenu;
class TQTime;
class TQLabel;
class TDEConfig;
class KOAgenda;
class KOAgendaItem;
 
namespace KOrg {
  class IncidenceChangerBase;
}
using namespace KOrg;
 
namespace KCal {
  class Event;
  class Todo;
  class Calendar;
}
using namespace KCal;
 
class MarcusBains : public TQFrame
{
  TQ_OBJECT
  
  public:
    MarcusBains( KOAgenda *agenda = 0, const char *name = 0 );
    void updateLocationRecalc( bool recalculate = false );
    virtual ~MarcusBains();
 
  public slots:
    void updateLocation();
 
  private:
    int todayColumn();
    TQTimer *minutes;
    TQLabel *mTimeBox;
    KOAgenda *agenda;
    TQTime mOldTime;
    int mOldToday;
};
 
class KOAgenda : public TQScrollView
{
  TQ_OBJECT
  
  public:
    KOAgenda ( int columns, int rows, int columnSize, CalendarView *calendarView,
               TQWidget *parent=0, const char *name = 0, WFlags f = 0 );
 
    KOAgenda ( int columns, CalendarView *calendarView, TQWidget *parent = 0,
               const char *name = 0, WFlags f = 0 );
    virtual ~KOAgenda();
 
    Incidence *selectedIncidence() const;
    TQDate selectedIncidenceDate() const;
    const TQString lastSelectedUid() const;
 
    virtual bool eventFilter ( TQObject *, TQEvent * );
 
    TQPoint contentsToGrid ( const TQPoint &pos ) const;
    TQPoint gridToContents ( const TQPoint &gpos ) const;
 
    int timeToY ( const TQTime &time );
    TQTime gyToTime ( int y );
 
    TQMemArray<int> minContentsY();
    TQMemArray<int> maxContentsY();
 
    int visibleContentsYMin();
    int visibleContentsYMax();
 
    void setStartTime( const TQTime &startHour );
 
    KOAgendaItem *insertItem ( Incidence *incidence, const TQDate &qd, int X, int YTop,
                               int YBottom, int itemPos, int itemCount );
    KOAgendaItem *insertAllDayItem ( Incidence *event, const TQDate &qd, int XBegin,
                                     int XEnd );
    void insertMultiItem ( Event *event, const TQDate &qd, int XBegin, int XEnd,
                           int YTop, int YBottom );
 
    void removeIncidence( Incidence *incidence );
 
    void changeColumns( int columns );
 
    int columns() { return mColumns; }
    int rows() { return mRows; }
 
    double gridSpacingX() const { return mGridSpacingX; }
    double gridSpacingY() const { return mGridSpacingY; }
 
//    virtual TQSizePolicy sizePolicy() const;
 
    void clear();
 
    virtual int minimumWidth() const;
    void updateConfig();
 
    void checkScrollBoundaries();
 
    void setHolidayMask( TQMemArray<bool> * );
 
    void setDateList( const DateList &selectedDates );
    DateList dateList() const;
 
    void setTypeAheadReceiver( TQObject * );
    TQObject *typeAheadReceiver() const;
    void finishTypeAhead();
 
    void setCalendar( Calendar*cal ) { mCalendar = cal; }
    void setIncidenceChanger( IncidenceChangerBase *changer ) { mChanger = changer; }
 
  public slots:
    void scrollUp();
    void scrollDown();
 
    void checkScrollBoundaries( int );
 
    void deselectItem();
 
    void clearSelection();
 
    void selectItem( KOAgendaItem * );
    void selectItemByUID( const TQString& uid );
    bool removeAgendaItem( KOAgendaItem *item );
    void showAgendaItem( KOAgendaItem *item );
 
  signals:
    void newEventSignal( ResourceCalendar *res, const TQString &subResource );
    void newTimeSpanSignal( const TQPoint &, const TQPoint & );
    void newStartSelectSignal();
 
    void showIncidenceSignal( Incidence *, const TQDate & );
    void editIncidenceSignal( Incidence *, const TQDate & );
    void deleteIncidenceSignal( Incidence * );
    void showIncidencePopupSignal( Calendar *, Incidence *, const TQDate &);
    void showNewEventPopupSignal();
 
    void itemModified( KOAgendaItem *item );
    void incidenceSelected( Incidence *, const TQDate & );
    void startMultiModify( const TQString & );
    void endMultiModify();
 
    void lowerYChanged( int );
    void upperYChanged( int );
 
    void startDragSignal(Incidence *);
    void droppedToDo( Todo*todo, const TQPoint &gpos, bool allDay );
 
    void enableAgendaUpdate( bool enable );
    void zoomView( const int delta, const TQPoint &pos, const TQt::Orientation );
 
    void mousePosSignal(const TQPoint &pos);
    void enterAgenda();
    void leaveAgenda();
 
    void gridSpacingYChanged( double );
 
  private:
    enum MouseActionType { NOP, MOVE, SELECT,
                           RESIZETOP, RESIZEBOTTOM, RESIZELEFT, RESIZERIGHT };
 
  protected:
    void drawContents( TQPainter *p, int cx, int cy, int cw, int ch );
    int columnWidth( int column );
    virtual void resizeEvent ( TQResizeEvent * );
 
    virtual bool eventFilter_mouse ( TQObject *, TQMouseEvent * );
#ifndef TQT_NO_WHEELEVENT
    virtual bool eventFilter_wheel ( TQObject *, TQWheelEvent * );
#endif
    virtual bool eventFilter_key ( TQObject *, TQKeyEvent * );
 
    virtual bool eventFilter_drag( TQObject *, TQDropEvent * );
 
    MouseActionType isInResizeArea( bool horizontal, const TQPoint &pos, KOAgendaItem *item );
    bool ptInSelection( TQPoint gpos ) const;
 
 
    void startSelectAction( const TQPoint &viewportPos );
 
    void performSelectAction( const TQPoint &viewportPos );
 
    void endSelectAction( const TQPoint &viewportPos );
 
    void startItemAction(const TQPoint& viewportPos);
 
    void performItemAction(const TQPoint& viewportPos);
 
    void endItemAction();
 
    void setNoActionCursor( KOAgendaItem *moveItem, const TQPoint &viewportPos );
    void setActionCursor( int actionType, bool acting=false );
 
    double calcSubCellWidth( KOAgendaItem *item );
    void placeAgendaItem( KOAgendaItem *item, double subCellWidth );
    void placeSubCells( KOAgendaItem *placeItem );
    void adjustItemPosition( KOAgendaItem *item );
 
    void keyPressEvent( TQKeyEvent * );
 
    void calculateWorkingHours();
 
    virtual void contentsMousePressEvent ( TQMouseEvent * );
 
    void emitNewEventForSelection();
 
  protected slots:
    void deleteItemsToDelete();
    void resizeAllContents();
 
  private:
    void init();
    void marcus_bains();
    bool mAllDayMode;
 
    // We need the calendar for drag'n'drop and for paint the ResourceColor
    Calendar *mCalendar;
 
    // Width and height of agenda cells. mDesiredGridSpacingY is the height
    // set in the config. The actual height might be larger since otherwise
    // more than 24 hours might be displayed.
    double mGridSpacingX;
    double mGridSpacingY;
    double mDesiredGridSpacingY;
 
    // size of border, where mouse action will resize the KOAgendaItem
    int mResizeBorderWidth;
 
    // size of border, where mouse mve will cause a scroll of the agenda
    int mScrollBorderWidth;
    int mScrollDelay;
    int mScrollOffset;
 
    TQTimer mScrollUpTimer;
    TQTimer mScrollDownTimer;
 
    // Number of Columns/Rows of agenda grid
    int mColumns;
    int mRows;
 
    // Cells to store Move and Resize coordiantes while performing the action
    TQPoint mStartCell;
    TQPoint mEndCell;
 
    // Working Hour coordiantes
    bool mWorkingHoursEnable;
    TQMemArray<bool> *mHolidayMask;
    int mWorkingHoursYTop;
    int mWorkingHoursYBottom;
 
    // Selection
    bool mHasSelection;
    TQPoint mSelectionStartPoint;
    TQPoint mSelectionStartCell;
    TQPoint mSelectionEndCell;
 
    // List of dates to be displayed
    DateList mSelectedDates;
 
    // The KOAgendaItem, which has been right-clicked last
    TQGuardedPtr<KOAgendaItem> mClickedItem;
 
    // The KOAgendaItem, which is being moved/resized
    TQGuardedPtr<KOAgendaItem> mActionItem;
    TQPair<ResourceCalendar *, TQString> mResPair;
 
    // Currently selected item
    TQGuardedPtr<KOAgendaItem> mSelectedItem;
    // Uid of the last selected item. Used for reselecting in situations
    // where the selected item points to a no longer valid incidence, for
    // example during resource reload.
    TQString mSelectedUid;
 
    // The Marcus Bains Line widget.
    MarcusBains *mMarcusBains;
 
    MouseActionType mActionType;
 
    bool mItemMoved;
 
    // List of all Items contained in agenda
    TQPtrList<KOAgendaItem> mItems;
    TQPtrList<KOAgendaItem> mItemsToDelete;
 
    TQPopupMenu *mItemPopup; // Right mouse button popup menu for KOAgendaItems
 
    int mOldLowerScrollValue;
    int mOldUpperScrollValue;
 
    bool mTypeAhead;
    TQObject *mTypeAheadReceiver;
    TQPtrList<TQEvent> mTypeAheadEvents;
 
    bool mReturnPressed;
    KOrg::IncidenceChangerBase *mChanger;
 
    CalendarView *mCalendarView;
};
 
#endif // KOAGENDA_H