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/***************************************************************************
kxycolorselector.h - description
-------------------
begin : Fri Jul 7 2000
copyright : (C) 2000 by Artur Rataj
email : art@zeus.polsl.gliwice.pl
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef KXYCOLORSELECTOR_H
#define KXYCOLORSELECTOR_H
#include <tqwidget.h>
#include <kselect.h>
#include "main.h"
/** A widget for selecting two of color components
* @author Artur Rataj
*/
class KXYColorSelector : public KXYSelector {
Q_OBJECT
public:
/** The types of the selector. They specify a color component subset */
enum { TYPE_NONE = 0,
TYPE_HS = 1,
TYPE_VS = 2,
TYPE_HV = 3,
TYPE_RG = 4,
TYPE_GB = 5,
TYPE_BR = 6,
TYPE_ = 7,
/** Component selection resolution */
COMPONENT_SELECTION_RESOLUTION = 10000 };
public:
/** Constructs a two-dimensional color component selector widget,
* with a type TYPE_NONE and ranges 0 .. MAX_COLOR_COMPONENT_VALUE
*/
KXYColorSelector(TQWidget *parent=0, const char *name=0);
~KXYColorSelector();
/** Set the type of the selector */
void setType(const int type);
/** Update the pixmap */
void updateContents();
/** Set the global component */
void setGlobalComponent(const int component);
/** @return The global component */
int globalComponent() const;
protected:
/** The number of colors that are used to dither the pixmap
* if number of color planes <= 8. The palette returned by
* getStandardColorsPalette() is of the size.
*/
enum { STANDARD_PALETTE_SIZE = 17 };
/** A type of the selector */
int type;
/** The global component value */
int m_globalComponent;
/** Draws the contents of the widget on a pixmap,
* which is used for buffering.
*/
virtual void drawPalette( TQPixmap *pixmap );
/** @reimplemented */
virtual void resizeEvent( TQResizeEvent * );
/** Reimplemented from KXYSelector. This drawing is
* buffered in a pixmap here. As real drawing
* routine, drawPalette() is used.
*/
virtual void drawContents( TQPainter *painter );
/** Draws the cursor */
virtual void drawCursor(TQPainter* painter, int x, int y);
/** set a color at a given coordinate */
virtual void setColor(TQColor* const color, const int x, const int y);
/** @return STANDARD_PALETTE_SIZE colors used to dither the
* pixmap if number of color planes <= 8
*/
TQColor* standardColorsPalette();
private:
/* The buffering pixmap */
TQPixmap pixmap;
};
#endif
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