gwenview/lib/widgetfloater.h

   1 // vim: set tabstop=4 shiftwidth=4 noexpandtab:
   2 /*
   3 Gwenview: an image viewer
   4 Copyright 2008 Aurélien Gâteau <aurelien.gateau@free.fr>
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation; either version 2
   9 of the License, or (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
  19
  20 */
  21 #ifndef WIDGETFLOATER_H
  22 #define WIDGETFLOATER_H
  23
  24 #include <lib/gwenviewlib_export.h>
  25
  26 // Qt
  27 #include <QObject>
  28
  29 // KDE
  30
  31 // Local
  32
  33 namespace Gwenview {
  34
  35
  36 class WidgetFloaterPrivate;
  37
  38 /**
  39  * This helper object makes it possible to place a widget (the child) over
  40  * another (the parent), ensuring the child remains aligned as specified by
  41  * setAlignment() whenever either widget get resized.
  42  */
  43 class GWENVIEWLIB_EXPORT WidgetFloater : public QObject {
  44         Q_OBJECT
  45 public:
  46         WidgetFloater(QWidget* parent);
  47         ~WidgetFloater();
  48
  49         void setChildWidget(QWidget*);
  50
  51         void setAlignment(Qt::Alignment);
  52
  53         void setHorizontalMargin(int);
  54         int horizontalMargin() const;
  55
  56         void setVerticalMargin(int);
  57         int verticalMargin() const;
  58
  59 protected:
  60         bool eventFilter(QObject*, QEvent*);
  61
  62 private:
  63         WidgetFloaterPrivate* const d;
  64 };
  65
  66
  67 } // namespace
  68
  69 #endif /* WIDGETFLOATER_H */