gwenview/lib/expandbutton.h

   1 /*
   2 Gwenview: an image viewer
   3 Copyright 2007 Aurélien Gâteau <aurelien.gateau@free.fr>
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18
  19 */
  20 #ifndef EXPANDBUTTON_H
  21 #define EXPANDBUTTON_H
  22
  23 #include <lib/gwenviewlib_export.h>
  24
  25 #include <QToolButton>
  26
  27
  28 namespace Gwenview {
  29
  30
  31 /**
  32  * A button which looks flat and shows an expand indicator ([-] or [+]).
  33  *
  34  * To implement expandable frames, add a button like this above your frame,
  35  * connect the toggled(bool) signal of the button to the setVisible(bool) slot
  36  * of the frame.
  37  * By default the button is not on, so be sure to hide the frame.
  38  */
  39 class GWENVIEWLIB_EXPORT ExpandButton : public QToolButton {
  40 public:
  41         ExpandButton(QWidget* parent);
  42         virtual QSize sizeHint() const;
  43
  44 protected:
  45         virtual void paintEvent(QPaintEvent* event);
  46 };
  47
  48
  49 } // namespace
  50
  51
  52 #endif /* EXPANDBUTTON_H */