/*
 *  Copyright (c) 2004 Cyrille Berger <cberger@cberger.net>
 *                2004 Sven Langkamp <longamp@reallygood.de>
 *
 *  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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
#ifndef _KIS_WDG_GRADIENT_SLIDER_H_
#define _KIS_WDG_GRADIENT_SLIDER_H_

#include <kpixmapio.h>
#include <qwidget.h>

class KPopupMenu;
class KisAutogradientResource;
class KisGradientSegment;

class KisGradientSliderWidget : public QWidget
{
	Q_OBJECT
	public:
		KisGradientSliderWidget(QWidget *parent = 0, const char* name = 0, WFlags f = 0);
	public:
		virtual void paintEvent ( QPaintEvent * );
		void setGradientResource( KisAutogradientResource* agr);
		KisGradientSegment* selectedSegment() { return m_selectedSegment; };
	signals:
		void sigSelectedSegment(KisGradientSegment*);
		void sigChangedSegment(KisGradientSegment*);
	protected:
		virtual void mousePressEvent( QMouseEvent * e );
		virtual void mouseReleaseEvent ( QMouseEvent * e );
		virtual void mouseMoveEvent( QMouseEvent * e );
		virtual void contextMenuEvent( QContextMenuEvent * e );
	private slots:
		void slotMenuAction(int id);
	private:
		enum {
			NO_DRAG,
			LEFT_DRAG,
			RIGHT_DRAG,
			MIDDLE_DRAG
		};

		enum {
			SPLIT_SEGMENT,
			DUPLICATE_SEGMENT,
			MIRROR_SEGMENT,
			REMOVE_SEGMENT
		};
		
		KPixmapIO m_pixmapIO;
		KisAutogradientResource* m_autogradientResource;
		KisGradientSegment* m_currentSegment;
		KisGradientSegment* m_selectedSegment;
		KPopupMenu* m_segmentMenu;
		int m_drag;
};

#endif
