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/*
* Copyright (c) 2005 Bart Coppens <kde@bartcoppens.be>
*
* 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 _KIS_HISTOGRAM_VIEW_
#define _KIS_HISTOGRAM_VIEW_
#include <tqlabel.h>
#include <tqpixmap.h>
#include <tqvaluevector.h>
#include <tqstringlist.h>
#include "kis_types.h"
#include "kis_histogram_producer.h"
#include "kis_histogram.h"
class KisChannelInfo;
/**
* This class displays a histogram. It has a list of channels it can select. The easy
* way is to display channelStrings() to the user, and then use a setActiveChannel
* with the integer the same as the one the selected string in that stringlist has.
* If the selected one is a producer, the histogram will automatically display all its
* channels, and color them if that is possible.
*
* You can also set the channels manually, just don't forget that the displayed channels
* all need to belong to the same producer! If you set them manually, don't forget to set
* the (non)usage of color as well.
*
* You can either set this to use a specific layer, or use a specific histogram. With the latter,
* some functionality will disappear, like listProducers(). Setting a histogram will discard
* info on the layer, and setting a layer will discard info on the histogram.
**/
class KisHistogramView : public TQLabel {
Q_OBJECT
public:
KisHistogramView(TQWidget *parent = 0, const char *name = 0, WFlags f = 0);
virtual ~KisHistogramView();
void setPaintDevice(KisPaintDeviceSP dev);
void setHistogram(KisHistogramSP histogram);
void setView(double from, double size);
KisHistogramProducerSP currentProducer();
TQStringList channelStrings();
/** Lists all producers currently available */
KisIDList listProducers();
/** Sets the currently displayed channels to channels of the producer with producerID as ID*/
void setCurrentChannels(const KisID& producerID, TQValueVector<KisChannelInfo *> channels);
/** Be careful, producer will be modified */
void setCurrentChannels(KisHistogramProducerSP producer, TQValueVector<KisChannelInfo *> channels);
bool hasColor();
void setColor(bool set);
public slots:
void setActiveChannel(int channel);
void setHistogramType(enumHistogramType type);
void updateHistogram();
signals:
void rightClicked(const TQPoint& pos);
protected:
virtual void mousePressEvent(TQMouseEvent * e);
private:
void setChannels();
void addProducerChannels(KisHistogramProducerSP producer);
typedef struct {
bool isProducer;
KisHistogramProducerSP producer;
KisChannelInfo * channel;
} ComboboxInfo;
TQValueVector<ComboboxInfo> m_comboInfo;
TQPixmap m_pix;
KisHistogramSP m_histogram;
KisColorSpace* m_cs;
KisHistogramProducerSP m_currentProducer;
TQValueVector<KisChannelInfo *> m_channels;
// Maps the channels in m_channels to a real channel offset in the producer->channels()
TQValueVector<TQ_INT32> m_channelToOffset;
TQStringList m_channelStrings;
bool m_color;
double m_from;
double m_width;
};
#endif // _KIS_HISTOGRAM_VIEW_
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