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/***************************************************************************
* Copyright (C) 2007-2009 by Peter Penz <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#ifndef DOLPHINCOLUMNVIEWCONTAINER_H
#define DOLPHINCOLUMNVIEWCONTAINER_H
#include "dolphinview.h"
#include <kurl.h>
#include <QList>
#include <QScrollArea>
#include <QString>
class DolphinColumnView;
class DolphinViewController;
class QFrame;
class QTimeLine;
class QTimer;
/**
* @brief Represents a container for columns represented as instances
* of DolphinColumnView.
*
* @see DolphinColumnView
*/
class DolphinColumnViewContainer : public QScrollArea
{
Q_OBJECT
public:
/**
* @param parent Parent widget.
* @param dolphinViewController Allows the DolphinColumnView to control the
* DolphinView in a limited way.
* @param viewModeController Controller that is used by the DolphinView
* to control the DolphinColumnView. The DolphinColumnView
* only has read access to the controller.
* @param model Directory that is shown.
*/
explicit DolphinColumnViewContainer(QWidget* parent,
DolphinViewController* dolphinViewController,
const ViewModeController* viewModeController);
virtual ~DolphinColumnViewContainer();
KUrl rootUrl() const;
QAbstractItemView* activeColumn() const;
/**
* Shows the column which represents the URL \a url. If the column
* is already shown, it gets activated, otherwise it will be created.
*/
void showColumn(const KUrl& url);
protected:
virtual void mousePressEvent(QMouseEvent* event);
virtual void keyPressEvent(QKeyEvent* event);
virtual void resizeEvent(QResizeEvent* event);
virtual void wheelEvent(QWheelEvent* event);
private slots:
/**
* Moves the content of the columns view to represent
* the scrollbar position \a x.
*/
void moveContentHorizontally(int x);
/**
* Updates the background color of the columns to respect
* the current activation state \a active.
*/
void updateColumnsBackground(bool active);
/**
* Tells the Dolphin controller to update the active URL
* to m_activeUrl. The slot is called asynchronously with a
* small delay, as this prevents a flickering when a directory
* from an inactive column gets selected.
*/
void updateActiveUrl();
private:
void layoutColumns();
void updateScrollBar();
/**
* Assures that the currently active column is fully visible
* by adjusting the horizontal position of the content.
*/
void assureVisibleActiveColumn();
/**
* Request the activation for the column \a column. It is assured
* that the columns gets fully visible by adjusting the horizontal
* position of the content.
*/
void requestActivation(DolphinColumnView* column);
/** Removes all columns except of the root column. */
void removeAllColumns();
/**
* Returns the position of the point \a point relative to the column
* \a column.
*/
QPoint columnPosition(DolphinColumnView* column, const QPoint& point) const;
/**
* Deletes the column. If the itemview of the controller is set to the column,
* the controllers itemview is set to 0.
*/
void deleteColumn(DolphinColumnView* column);
private:
DolphinViewController* m_dolphinViewController;
const ViewModeController* m_viewModeController;
bool m_active;
int m_index;
int m_contentX;
QList<DolphinColumnView*> m_columns;
QFrame* m_emptyViewport;
QTimeLine* m_animation;
QAbstractItemView* m_dragSource;
QTimer* m_activeUrlTimer;
friend class DolphinColumnView;
};
#endif
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