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+/*  -*- C++ -*-
+    This file is part of the KDE libraries
+    Copyright (C) 1997 Tim D. Gilman (tdgilman@best.org)
+              (C) 1998-2001 Mirko Boehm (mirko@kde.org)
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    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
+    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 KDATEPICKER_H
+#define KDATEPICKER_H
+#include <qdatetime.h>
+#include <qframe.h>
+#include <kdemacros.h>
+
+class QLineEdit;
+class QToolButton;
+class KDateValidator;
+class KDateTable;
+
+/**
+ * Provides a widget for calendar date input.
+ *
+ *     Different from the
+ *     previous versions, it now emits two types of signals, either
+ * dateSelected() or dateEntered() (see documentation for both
+ *     signals).
+ *
+ *     A line edit has been added in the newer versions to allow the user
+ *     to select a date directly by entering numbers like 19990101
+ *     or 990101.
+ *
+ * \image html kdatepicker.png "KDE Date Widget"
+ *
+ *     @version $Id$
+ *     @author Tim Gilman, Mirko Boehm
+ *
+ * @short A date selection widget.
+ **/
+class KDatePicker: public QFrame
+{
+  Q_OBJECT
+  Q_PROPERTY( QDate date READ date WRITE setDate)
+  Q_PROPERTY( bool closeButton READ hasCloseButton WRITE setCloseButton )
+  Q_PROPERTY( int fontSize READ fontSize WRITE setFontSize )
+  
+public:
+  /** The usual constructor.  The given date will be displayed
+   * initially.
+   **/
+  KDatePicker(QWidget *parent=0,
+	      QDate=QDate::currentDate(),
+	      const char *name=0);
+
+  /** The usual constructor.  The given date will be displayed
+   * initially.
+   * @since 3.1
+   **/
+  KDatePicker(QWidget *parent,
+	      QDate,
+	      const char *name,
+	      WFlags f); // ### KDE 4.0: Merge
+
+  /**
+   * Standard qt widget constructor. The initial date will be the
+   * current date.
+   * @since 3.1
+   */
+  KDatePicker( QWidget *parent, const char *name );
+
+  /**
+   * The destructor.
+   **/
+  virtual ~KDatePicker();
+
+  /** The size hint for date pickers. The size hint recommends the
+   *   minimum size of the widget so that all elements may be placed
+   *  without clipping. This sometimes looks ugly, so when using the
+   *  size hint, try adding 28 to each of the reported numbers of
+   *  pixels.
+   **/
+  QSize sizeHint() const;
+
+  /**
+   * Sets the date.
+   *
+   *  @returns @p false and does not change anything
+   *      if the date given is invalid.
+   **/
+  bool setDate(const QDate&);
+
+  /**
+   * Returns the selected date.
+   * @deprecated
+   **/
+  const QDate& getDate() const KDE_DEPRECATED;
+
+  /**
+   * @returns the selected date.
+   */
+  const QDate &date() const;
+
+  /**
+   * Enables or disables the widget.
+   **/
+  void setEnabled(bool);
+
+  /**
+   * @returns the KDateTable widget child of this KDatePicker
+   * widget.
+   * @since 3.2
+   */
+  KDateTable *dateTable() const { return table; };
+  
+  /**
+   * Sets the font size of the widgets elements.
+   **/
+  void setFontSize(int);
+  /**
+   * Returns the font size of the widget elements.
+   */
+  int fontSize() const
+    { return fontsize; }
+
+  /**
+   * By calling this method with @p enable = true, KDatePicker will show
+   * a little close-button in the upper button-row. Clicking the
+   * close-button will cause the KDatePicker's topLevelWidget()'s close()
+   * method being called. This is mostly useful for toplevel datepickers
+   * without a window manager decoration.
+   * @see hasCloseButton
+   * @since 3.1
+   */
+  void setCloseButton( bool enable );
+
+  /**
+   * @returns true if a KDatePicker shows a close-button.
+   * @see setCloseButton
+   * @since 3.1
+   */
+  bool hasCloseButton() const;
+
+protected:
+  /// to catch move keyEvents when QLineEdit has keyFocus
+  virtual bool eventFilter(QObject *o, QEvent *e );
+  /// the resize event
+  virtual void resizeEvent(QResizeEvent*);
+  /// the year forward button
+  QToolButton *yearForward;
+  /// the year backward button
+  QToolButton *yearBackward;
+  /// the month forward button
+  QToolButton *monthForward;
+  /// the month backward button
+  QToolButton *monthBackward;
+  /// the button for selecting the month directly
+  QToolButton *selectMonth;
+  /// the button for selecting the year directly
+  QToolButton *selectYear;
+  /// the line edit to enter the date directly
+  QLineEdit *line;
+  /// the validator for the line edit:
+  KDateValidator *val;
+  /// the date table
+  KDateTable *table;
+  /// the size calculated during resize events
+    //  QSize sizehint;
+  /// the widest month string in pixels:
+  QSize maxMonthRect;
+protected slots:
+  void dateChangedSlot(QDate);
+  void tableClickedSlot();
+  void monthForwardClicked();
+  void monthBackwardClicked();
+  void yearForwardClicked();
+  void yearBackwardClicked();
+  /**
+   * @since 3.1
+   * @deprecated in 3.2
+   */
+  void selectWeekClicked() KDE_DEPRECATED;
+  /**
+   * @since 3.1
+   */
+  void selectMonthClicked();
+  /**
+   * @since 3.1
+   */
+  void selectYearClicked();
+  /**
+   * @since 3.1
+   */
+  void lineEnterPressed();
+  /**
+   * @since 3.2
+   */
+  void todayButtonClicked();
+  /**
+   * @since 3.2
+   */
+  void weekSelected(int);
+
+signals:
+  // ### KDE 4.0 Make all QDate parameters const references
+
+  /** This signal is emitted each time the selected date is changed.
+   *  Usually, this does not mean that the date has been entered,
+   *  since the date also changes, for example, when another month is
+   *  selected.
+   *  @see dateSelected
+   */
+  void dateChanged(QDate);
+  /** This signal is emitted each time a day has been selected by
+   *  clicking on the table (hitting a day in the current month). It
+   *  has the same meaning as dateSelected() in older versions of
+   *  KDatePicker.
+   */
+  void dateSelected(QDate);
+  /** This signal is emitted when enter is pressed and a VALID date
+   *  has been entered before into the line edit. Connect to both
+   *  dateEntered() and dateSelected() to receive all events where the
+   *  user really enters a date.
+   */
+  void dateEntered(QDate);
+  /** This signal is emitted when the day has been selected by
+   *  clicking on it in the table.
+   */
+  void tableClicked();
+
+private:
+  /// the font size for the widget
+  int fontsize;
+
+protected:
+  virtual void virtual_hook( int id, void* data );
+private:
+  void init( const QDate &dt );
+  void fillWeeksCombo(const QDate &date);
+  class KDatePickerPrivate;
+  KDatePickerPrivate *d;
+};
+
+#endif //  KDATEPICKER_H