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0001 // vim: set tabstop=4 shiftwidth=4 expandtab: 0002 /* 0003 Gwenview: an image viewer 0004 Copyright 2008 Aurélien Gâteau <agateau@kde.org> 0005 0006 This program is free software; you can redistribute it and/or 0007 modify it under the terms of the GNU General Public License 0008 as published by the Free Software Foundation; either version 2 0009 of the License, or (at your option) any later version. 0010 0011 This program is distributed in the hope that it will be useful, 0012 but WITHOUT ANY WARRANTY; without even the implied warranty of 0013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0014 GNU General Public License for more details. 0015 0016 You should have received a copy of the GNU General Public License 0017 along with this program; if not, write to the Free Software 0018 Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA. 0019 0020 */ 0021 #ifndef WIDGETFLOATER_H 0022 #define WIDGETFLOATER_H 0023 0024 #include <lib/gwenviewlib_export.h> 0025 0026 // Qt 0027 #include <QObject> 0028 0029 // KF 0030 0031 // Local 0032 0033 namespace Gwenview 0034 { 0035 struct WidgetFloaterPrivate; 0036 0037 /** 0038 * This helper object makes it possible to place a widget (the child) over 0039 * another (the parent), ensuring the child remains aligned as specified by 0040 * setAlignment() whenever either widget get resized. 0041 */ 0042 class GWENVIEWLIB_EXPORT WidgetFloater : public QObject 0043 { 0044 Q_OBJECT 0045 public: 0046 explicit WidgetFloater(QWidget *parent); 0047 ~WidgetFloater() override; 0048 0049 void setChildWidget(QWidget *); 0050 0051 void setAlignment(Qt::Alignment); 0052 0053 void setHorizontalMargin(int); 0054 int horizontalMargin() const; 0055 0056 void setVerticalMargin(int); 0057 int verticalMargin() const; 0058 0059 protected: 0060 bool eventFilter(QObject *, QEvent *) override; 0061 0062 private: 0063 WidgetFloaterPrivate *const d; 0064 }; 0065 0066 } // namespace 0067 0068 #endif /* WIDGETFLOATER_H */