Source: kbuttonbox.h

# Source: kbuttonbox.h |
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    /* This file is part of the KDE libraries
        Copyright (C) 1997 Mario Weilguni (mweilguni@sime.com)

        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 __KBUTTONBOX__H__
    #define __KBUTTONBOX__H__

    #include
    class QPushButton;

    class KButtonBoxPrivate;
    /**
     * Container widget for buttons.
     *
     * This class uses Qt layout control to place the buttons; can handle
     * both vertical and horizontal button placement.  The default border
     * is now @p 0 (making it easier to deal with layouts). The space
     * between buttons is now more Motif compliant.
     *
     * @author Mario Weilguni
     * @version $Id: kbuttonbox.h,v 1.26 2002/03/04 00:51:46 lunakl Exp $
     **/

    class KButtonBox : public QWidget
    {
      Q_OBJECT

    public:
      /**
        * Create an empty container for buttons.
        *
        * If @p _orientation is @p Vertical, the buttons inserted with
        * @ref addButton() are laid out from top to bottom, otherwise they
        * are laid out from left to right.
        */
      KButtonBox(QWidget *parent, Orientation _orientation = Horizontal,
    	     int border = 0, int _autoborder = 6);

      /**
        * Free private data field
        */
      ~KButtonBox();

      /**
        * @return The minimum size needed to fit all buttons.
        *
        * This size is
        * calculated by the width/height of all buttons plus border/autoborder.
        */
      virtual QSize sizeHint() const;
      /**
       * @reimplemented
       */
      virtual QSizePolicy sizePolicy() const;
      /**
       * @reimplemented
       */
      virtual void resizeEvent(QResizeEvent *);

      /**
        * Add a new @ref QPushButton.
        *
        * @param noexpand If @p noexpand is @p false, the width
        * of the button is adjusted to fit the other buttons (the maximum
        * of all buttons is taken). If @p noexpand is @p true, the width of this
        * button will be set to the minimum width needed for the given text).
        *
        * @return A pointer to the new button.
        */
      QPushButton *addButton(const QString& text, bool noexpand = FALSE);

      /**
        * Add a new @ref QPushButton.
        *
        * @param receiver An object to connect to.
        * @param slot A Qt slot to connect the 'clicked()' signal to.
        * @param noexpand If @p noexpand is @p false, the width
        * of the button is adjusted to fit the other buttons (the maximum
        * of all buttons is taken). If @p noexpand @p true, the width of this
        * button will be set to the minimum width needed for the given text).
        *
        * @return A pointer to the new button.
        */
      QPushButton *addButton(const QString& text, QObject * receiver, const char * slot, bool noexpand = FALSE);

      /**
        * Add a stretch to the buttonbox.
        *
        * Can be used to separate buttons.  That is, if you add the
        * buttons OK and Cancel, add a stretch, and then add the button Help,
        * the buttons OK and Cancel will be left-aligned (or top-aligned
        * for vertical) whereas Help will be right-aligned (or
        * bottom-aligned for vertical).
        *
        * @see QBoxLayout
        */
      void addStretch(int scale = 1);

      /**
        * This function must be called @em once after all buttons have been
        * inserted.
        *
        * It will start layout control.
        */
      void layout();

    public: // as PrivateData needs Item, it has to be exported
      class Item;
    protected:
      /**
        * @return the best size for a button. Checks all buttons and takes
        * the maximum width/height.
        */
      QSize bestButtonSize() const;
      void  placeButtons();
      QSize buttonSizeHint(QPushButton *) const;

    protected:
      virtual void virtual_hook( int id, void* data );
    private:
      KButtonBoxPrivate *data;
    };

    #endif

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