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/***************************************************************************
gradientselection.h - description
-------------------
begin : Wed Jul 12 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 GRADIENTSELECTION_H
#define GRADIENTSELECTION_H
#include <qwidget.h>
#include <qcheckbox.h>
#include <qpushbutton.h>
#include <qbuttongroup.h>
#include "kxycolorselector.h"
#include "kzcolorselector.h"
#include "color.h"
/** A widget for selecting colors from gradients
* @author Artur Rataj
*/
class GradientSelection : public QWidget {
Q_OBJECT
public:
/** Constructs the widget */
GradientSelection(QWidget *parent=0, const char *name=0);
~GradientSelection();
/** Enables or disables the color synchronize button */
void enableSynchronizeColorButton(bool enable);
signals:
/** A signal that a color value has changed by edition */
void valueChanged(Color*);
/** Synchronizes the widget color */
void synchronizeColor();
public slots:
/** Sets a color */
void slotSetValue(Color* color);
/** Whether to ignore the set value slot. Default is false. */
void slotIgnoreSetValue(bool ignore);
protected:
/** Components indices. If the gradient selector shows one of them,
* the two components selector should be in a mode indicated by a value
* of the appropriate index
*/
enum { H_COMPONENT = KXYColorSelector::TYPE_VS,
S_COMPONENT = KXYColorSelector::TYPE_HV,
V_COMPONENT = KXYColorSelector::TYPE_HS };
/** Variable global component checkbox */
QCheckBox* variableCheckBox;
/** Synchronize color button */
QPushButton* synchronizeColorButton;
/** HSV buttons button group widget */
QButtonGroup hsvButtons;
/** The two components selector */
KXYColorSelector* xyColorSelector;
/** The gradient selector */
KZColorSelector* zColorSelector;
/** Whether the two component color selector global component is variable */
bool variableGlobalComponent;
/** Whether to ignore the set value slot */
bool ignoreSetValue;
/** The selected color */
Color color;
/** The selected color H component */
int hComponent;
/** The selected color S component */
int sComponent;
/** The selected color V component */
int vComponent;
/** The gradient selector component index */
int zColorSelectorComponentIndex;
/** Updates two component selector colors */
void updateXyColorSelector(const bool modeChanged);
/** Updates gradient selector colors */
void updateZColorSelector();
protected slots:
/** Sets color selection mode */
void slotSetColorSelectionMode(int mode);
/** Sets if the two component selector has a variable global component */
void slotSetVariableGlobalComponent(bool variable);
/** Notifies that the two component color selector pointer position changed */
void slotXyColorSelectorPosChanged(int x, int y);
/** Notifies that the gradient color selector pointer position changed */
void slotZColorSelectorPosChanged(int y);
/** sends synchronizeColor signal */
void slotSynchronizeColor();
};
#endif
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