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/***************************************************************************
                          kmymoneycombo.h  -  description
                             -------------------
    begin                : Mon Mar 12 2007
    copyright            : (C) 2007 by Thomas Baumgart
    email                : ipwizard@users.sourceforge.net
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef KMYMONEYCOMBO_H
#define KMYMONEYCOMBO_H

// ----------------------------------------------------------------------------
// QT Includes

#include <tqtimer.h>
#include <tqmutex.h>

// ----------------------------------------------------------------------------
// KDE Includes

#include <kcombobox.h>

// ----------------------------------------------------------------------------
// Project Includes

#include <kmymoney/mymoneyutils.h>
#include <kmymoney/mymoneysplit.h>
#include <kmymoney/register.h>
#include <kmymoney/mymoneyaccount.h>
#include <kmymoney/transaction.h>
#include <kmymoney/mymoneypayee.h>
#include <kmymoney/mymoneytransactionfilter.h>
#include <kmymoney/mymoneyscheduled.h>

class kMyMoneyCompletion;
class KMyMoneySelector;
class kMyMoneyLineEdit;

/**
  * @author Thomas Baumgart
  */
class KMyMoneyCombo : public KComboBox
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyCombo(TQWidget *w = 0, const char *name=0);
  KMyMoneyCombo(bool rw, TQWidget *w = 0, const char *name=0);

  /**
    * This method is used to turn on/off the hint display and to setup the appropriate text.
    * The hint text is shown in a lighter color if the field is otherwise empty and does
    * not have the keyboard focus.
    *
    * @param hint reference to text. If @a hint is empty, no hint will be shown.
    */
  void setHint(const TQString& hint) const;

  /**
    * overridden for internal reasons.
    *
    * @param editable make combo box editable (@a true) or selectable only (@a false).
    */
  void setEditable(bool editable);

  /**
    * This method returns a pointer to the completion object of the combo box.
    *
    * @return pointer to kMyMoneyCompletion or derivative.
    */
  kMyMoneyCompletion* completion(void) const;

  /**
    * This method returns a pointer to the completion object's selector.
    *
    * @return pointer to KMyMoneySelector or derivative.
    */
  KMyMoneySelector* selector(void) const;

  /**
    * This method returns the ids of the currently selected items
    */
  void selectedItems(TQStringList& list) const;

  /**
    * This method returns the id of the first selected item.
    * Usage makes usually only sense when the selection mode
    * of the associated KMyMoneySelector is TQListView::Single.
    *
    * @sa KMyMoneySelector::setSelectionMode()
    *
    * @param id reference to TQString containing the id. If no item
    *           is selected id will be empty.
    */
  void selectedItem(TQString& id) const KDE_DEPRECATED;

  /**
    * This method returns the id of the first selected item.
    * Usage makes usually only sense when the selection mode
    * of the associated KMyMoneySelector is TQListView::Single.
    *
    * @sa KMyMoneySelector::setSelectionMode()
    *
    * @return reference to TQString containing the id. If no item
    *         is selected the TQString will be empty.
    */
  const TQString& selectedItem(void) const { return m_id; }

  /**
    * This method selects the item with the respective @a id.
    *
    * @param id reference to TQString containing the id
    */
  void setSelectedItem(const TQString& id);

  /**
    * This method checks if the position @a pos is part of the
    * area of the drop down arrow.
    */
  bool isInArrowArea(const TQPoint& pos) const;

  void setSuppressObjectCreation(bool suppress) { m_canCreateObjects = !suppress; }

  /**
    * overridden for internal reasons, no API change
    */
  void setCurrentText(const TQString& txt = TQString()) { KComboBox::setCurrentText(txt); }

  /**
    * overridden to set the background color of the lineedit as well
    */
  void setPaletteBackgroundColor(const TQColor& color);

  /**
   * Overridden to support our own completion box
   */
  TQSize tqsizeHint() const;

protected slots:
  virtual void slotItemSelected(const TQString& id);

protected:
  /**
    * reimplemented to support our own popup widget
    */
  void mousePressEvent(TQMouseEvent *e);

  /**
    * reimplemented to support our own popup widget
    */
  void keyPressEvent(TQKeyEvent *e);

  /**
    * reimplemented to support our own popup widget
    */
  void paintEvent(TQPaintEvent *);

  /**
    * reimplemented to support detection of new items
    */
  void focusOutEvent(TQFocusEvent* );

  /**
    * set the widgets text area based on the item with the given @a id.
    */
  virtual void setCurrentTextById(const TQString& id);

  /**
    * Overridden for internal reasons, no API change
    */
  void connectNotify(const char* signal);

  /**
    * Overridden for internal reasons, no API change
    */
  void disconnectNotify(const char* signal);

protected:
  /**
    * This member keeps a pointer to the object's completion object
    */
  kMyMoneyCompletion*    m_completion;

  /**
    * Use our own line edit to provide hint functionality
    */
  kMyMoneyLineEdit*      m_edit;

  /**
    * The currently selected item
    */
  TQString                m_id;

signals:
  void itemSelected(const TQString& id);
  void objectCreation(bool);
  void createItem(const TQString&, TQString&);

private:
  TQTimer                 m_timer;
  TQMutex                 m_focusMutex;
  /**
    * Flag to control object creation. Use setSuppressObjectCreation()
    * to modify it's setting. Defaults to @a false.
    */
  bool                   m_canCreateObjects;

  /**
    * Flag to check whether a focusOutEvent processing is underway or not
    */
  bool                   m_inFocusOutEvent;
};

/**
  * @author Thomas Baumgart
  * This class implements a combo box with the possible states for
  * reconciliation.
  */
class KMyMoneyReconcileCombo : public KMyMoneyCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyReconcileCombo(TQWidget *w = 0, const char *name=0);

  void setState(MyMoneySplit::reconcileFlagE state);
  MyMoneySplit::reconcileFlagE state(void) const;
  void removeDontCare(void);

protected slots:
  void slotSetState(const TQString&);
};

/**
  * @author Thomas Baumgart
  * This class implements a combo box with the possible states for
  * actions (Deposit, Withdrawal, etc.).
  *
  * @deprecated
  */
class KMyMoneyComboAction : public KMyMoneyCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyComboAction(TQWidget *w = 0, const char *name=0);

  void setAction(int state);
  int action(void) const;
  void protectItem(int id, bool protect);

protected slots:
  void slotSetAction(const TQString&);

signals:
  void actionSelected(int);
};

/**
  * @author Thomas Baumgart
  * This class implements a combo box with the possible states for
  * actions (Deposit, Withdrawal, etc.).
  */
class KMyMoneyCashFlowCombo : public KMyMoneyCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  /**
    * Create a combo box that contains the entries "Pay to", "From" and
    * "  " for don't care.
    */
  KMyMoneyCashFlowCombo(TQWidget *w = 0, const char *name=0, MyMoneyAccount::accountTypeE type = MyMoneyAccount::Asset);

  void setDirection(KMyMoneyRegister::CashFlowDirection dir);
  KMyMoneyRegister::CashFlowDirection direction(void) const { return m_dir; }
  void removeDontCare(void);

protected slots:
  void slotSetDirection(const TQString& id);

signals:
  void directionSelected(KMyMoneyRegister::CashFlowDirection);

private:
  KMyMoneyRegister::CashFlowDirection   m_dir;
};

/**
  * @author Thomas Baumgart
  * This class implements a combo box with the possible activities
  * for investment transactions (buy, sell, dividend, etc.)
  */
class KMyMoneyActivityCombo : public KMyMoneyCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  /**
    * Create a combo box that contains the entries "Buy", "Sell" etc.
    */
  KMyMoneyActivityCombo(TQWidget *w = 0, const char *name=0);

  void setActivity(MyMoneySplit::investTransactionTypeE activity);
  MyMoneySplit::investTransactionTypeE activity(void) const { return m_activity; }

protected slots:
  void slotSetActivity(const TQString& id);

signals:
  void activitySelected(MyMoneySplit::investTransactionTypeE);

private:
  MyMoneySplit::investTransactionTypeE  m_activity;
};

/**
  * This class implements a text based payee selector.
  * When initially used, the widget has the functionality of a KComboBox object.
  * Whenever a key is pressed, the set of loaded payees is searched for
  * payees names which match the currently entered text.
  *
  * If any match is found a list selection box is opened and the user can use
  * the up/down, page-up/page-down keys or the mouse to navigate in the list. If
  * a payee is selected, the selection box is closed. Other key-strokes are
  * directed to the parent object to manipulate the text.  The visible contents of
  * the selection box is updated with every key-stroke.
  *
  * This object is a replacement of the kMyMoneyPayee object and should be used
  * for new code.
  *
  * @author Thomas Baumgart
  */
class KMyMoneyPayeeCombo : public KMyMoneyCombo
{
   Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyPayeeCombo(TQWidget* parent = 0, const char* name = 0);

  void loadPayees(const TQValueList<MyMoneyPayee>& list);
};

class KMyMoneyGeneralCombo : public KComboBox
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyGeneralCombo(TQWidget* parent = 0, const char* name = 0);
  virtual ~KMyMoneyGeneralCombo();

  void insertItem(const TQString& txt, int id, int idx = -1);

  void setItem(int id) KDE_DEPRECATED;  // replace with setCurrentItem(id)
  int item(void) const KDE_DEPRECATED;  // replace with currentItem()

  void setCurrentItem(int id);
  int currentItem(void) const;

  void removeItem(int id);

public slots:
  void clear(void);

signals:
  void itemSelected(int id);

protected:
  // prevent the caller to use the standard KComboBox insertItem function with a default idx
  void insertItem(const TQString&);

protected slots:
  void slotChangeItem(int idx);

private:
  /// \internal d-pointer class.
  class Private;
  /// \internal d-pointer instance.
  Private* const d;
};


/**
 * This class implements a time period selector
 * @author Thomas Baumgart
 */
class KMyMoneyPeriodCombo : public KMyMoneyGeneralCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyPeriodCombo(TQWidget* parent = 0, const char* name = 0);

  MyMoneyTransactionFilter::dateOptionE currentItem(void) const;
  void setCurrentItem(MyMoneyTransactionFilter::dateOptionE id);

  /**
   * This function returns the actual start date for the given
   * period definition given by @p id. For user defined periods
   * the returned value is TQDate()
   */
  static TQDate start(MyMoneyTransactionFilter::dateOptionE id);

  /**
   * This function returns the actual end date for the given
   * period definition given by @p id. For user defined periods
   * the returned value is TQDate()
   */
  static TQDate end(MyMoneyTransactionFilter::dateOptionE id);

  // static void dates(TQDate& start, TQDate& end, MyMoneyTransactionFilter::dateOptionE id);
};

/**
 * This class implements an occurence selector
 * as a parent class for both OccurencePeriod and Frequency combos
 *
 * @author Colin Wright
 */
class KMyMoneyOccurenceCombo : public KMyMoneyGeneralCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyOccurenceCombo(TQWidget* parent = 0, const char* name = 0);

  MyMoneySchedule::occurenceE currentItem(void) const;
};

/**
 * This class implements an occurence period selector 
 * 
 * @author Colin Wright
 */
class KMyMoneyOccurencePeriodCombo : public KMyMoneyOccurenceCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyOccurencePeriodCombo(TQWidget* parent = 0, const char* name = 0);
};

/**
 * This class implements a payment frequency selector
 * @author Thomas Baumgart
 */
class KMyMoneyFrequencyCombo : public KMyMoneyOccurenceCombo
{
  Q_OBJECT
  TQ_OBJECT
public:
  KMyMoneyFrequencyCombo(TQWidget* parent = 0, const char* name = 0);

  /**
   * This method returns the number of events for the selected payment
   * frequency (eg for yearly the return value is 1 and for monthly it
   * is 12). In case, the frequency cannot be converted (once, every other year, etc.)
   * the method returns 0.
   */
  int eventsPerYear(void) const;
  /**
   * This method returns the number of days between two events of
   * the selected frequency. The return value for months is based
   * on 30 days and the year is 360 days long.
   */
  int daysBetweenEvents(void) const;
};

#endif