lyx_mirror/src/frontends/qt3/QWorkArea.h

// -*- C++ -*-
/**
 * \file QWorkArea.h
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author unknown
 * \author John Levon
 *
 * Full author contact details are available in file CREDITS.
 */

#ifndef QWORKAREA_H
#define QWORKAREA_H

#include "QLPainter.h"
#include "QContentPane.h"

#include <qscrollbar.h>

class LyXView;
class QPixmap;
class QWidget;

namespace lyx {
namespace frontend {


/**
 * Qt-specific implementation of the work area
 * (buffer view GUI)
 *
 * It consists of a content pane widget, and a scrollbar.
 * Hopefully soon we can just use QScrollView ...
 */
class QWorkArea : public QWidget {
public:
	friend class QContentPane;

	QWorkArea(LyXView & owner, int w, int h);

	virtual ~QWorkArea();
	/// return this widget's painter
	virtual lyx::frontend::Painter & getPainter() { return painter_; }
	/// return the width of the content pane
	virtual int workWidth() const { return content_->width(); }
	/// return the height of the content pane
	virtual int workHeight() const { return content_->height(); }
	///
	virtual void setScrollbarParams(int height, int pos, int line_height);

	/// a selection exists
	virtual void haveSelection(bool);
	///
	virtual void dragEnterEvent(QDragEnterEvent * event);
	///
	virtual void dropEvent(QDropEvent* event);

	/// get the pixmap we paint on to
	QPixmap * getPixmap() const { return content_->pixmap(); }

	/// get the content pane widget
	QWidget * getContent() const { return content_; }
        ///
        LyXView & view()
        {
                return owner_;
        }
private:
        /// The owning LyXView
        LyXView & owner_;
        
	/// scroll bar
	QScrollBar * scrollbar_;
	/// content
	QContentPane * content_;

	/// our painter
	QLPainter painter_;
};


} // namespace frontend
} // namespace lyx

#endif // QWORKAREA_H