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/*
* newsscroller.h
*
* Copyright (c) 2000, 2001 Frerich Raabe <raabe@kde.org>
* Copyright (c) 2001 Malte Starostik <malte@kde.org>
*
* 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. For licensing and distribution details, check the
* accompanying file 'COPYING'.
*/
#ifndef NEWSSCROLLER_H
#define NEWSSCROLLER_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "configaccess.h"
#include "newsengine.h"
#include <qframe.h>
#include <qptrlist.h>
#include <qpixmap.h>
class QTimer;
class Headline;
template <class> class QPtrList;
typedef QPtrList<Headline> HeadlineList;
class NewsScroller : public QFrame
{
Q_OBJECT
public:
NewsScroller(QWidget *, ConfigAccess *, const char * = 0);
virtual QSize sizeHint() const;
virtual QSizePolicy sizePolicy() const;
// Convenience stuff. Somehow ugly, no?
inline bool horizontal() const
{
return m_cfg->horizontal(static_cast<ConfigAccess::Direction>(m_cfg->scrollingDirection()));
}
inline bool vertical() const
{
return m_cfg->vertical(static_cast<ConfigAccess::Direction>(m_cfg->scrollingDirection()));
}
inline bool rotated() const
{
return m_cfg->rotated(static_cast<ConfigAccess::Direction>(m_cfg->scrollingDirection()));
}
public slots:
void clear();
void addHeadline(Article::Ptr);
void reset(bool bSeparatorOnly = false);
signals:
void contextMenu();
protected:
virtual void enterEvent(QEvent *);
virtual void mousePressEvent(QMouseEvent *);
virtual void mouseReleaseEvent(QMouseEvent *);
virtual void mouseMoveEvent(QMouseEvent *);
virtual void wheelEvent(QWheelEvent *);
virtual void leaveEvent(QEvent *);
virtual void drawContents(QPainter *);
virtual void dragEnterEvent( QDragEnterEvent *);
virtual void dropEvent(QDropEvent *);
protected slots:
void scroll(int = 1, bool = true);
void slotTimeout();
private:
int scrollWidth() const;
int scrollHeight() const;
bool updateActive(const QPoint &);
bool isHeadline(const QString &) const;
int speedAsInterval( int speed );
private:
friend class Headline;
ConfigAccess *m_cfg;
QTimer *m_scrollTimer;
mutable HeadlineList m_headlines;
Headline *m_activeHeadline;
QPixmap m_separator;
int m_offset;
QPoint m_dragPos;
bool m_mouseDrag;
QString m_tempHeadline;
float m_totalStepping;
float m_stepping;
};
#endif // NEWSSCROLLER_H
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