src/kitemviews/kitemlistcontainer.h

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   Based on the Itemviews NG project from Trolltech Labs:                *
   5  *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  21  ***************************************************************************/
  22
  23 #ifndef KITEMLISTCONTAINER_H
  24 #define KITEMLISTCONTAINER_H
  25
  26 #include <libdolphin_export.h>
  27
  28 #include <QAbstractAnimation>
  29 #include <QAbstractScrollArea>
  30
  31 class KItemListController;
  32 class KItemListView;
  33 class KItemModelBase;
  34 class QPropertyAnimation;
  35
  36 /**
  37  * @brief Provides a QWidget based scrolling view for a KItemListController.
  38  *
  39  * @see KItemListController
  40  */
  41 class LIBDOLPHINPRIVATE_EXPORT KItemListContainer : public QAbstractScrollArea
  42 {
  43     Q_OBJECT
  44
  45 public:
  46     explicit KItemListContainer(KItemListController* controller, QWidget* parent = 0);
  47     KItemListContainer(QWidget* parent = 0);
  48     virtual ~KItemListContainer();
  49
  50     KItemListController* controller() const;
  51
  52 protected:
  53     virtual void keyPressEvent(QKeyEvent* event);
  54     virtual void showEvent(QShowEvent* event);
  55     virtual void resizeEvent(QResizeEvent* event);
  56     virtual void scrollContentsBy(int dx, int dy);
  57     virtual bool eventFilter(QObject* obj, QEvent* event);
  58     virtual void wheelEvent(QWheelEvent* event);
  59
  60 private slots:
  61     void slotModelChanged(KItemModelBase* current, KItemModelBase* previous);
  62     void slotViewChanged(KItemListView* current, KItemListView* previous);
  63     void slotAnimationStateChanged(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
  64     void scrollTo(qreal offset);
  65     void updateScrollBars();
  66
  67 private:
  68     void initialize();
  69     void updateGeometries();
  70
  71 private:
  72     KItemListController* m_controller;
  73
  74     bool m_scrollBarPressed;
  75     bool m_smoothScrolling;
  76     QPropertyAnimation* m_smoothScrollingAnimation;
  77 };
  78
  79 #endif
  80
  81