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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* TODO: insert short description here
*//*
* Authors: see git history
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_SP_COLOR_SELECTOR_H
#define SEEN_SP_COLOR_SELECTOR_H
#include <gtk/gtk.h>
#include "color.h"
struct SPColorSelector;
class ColorSelector
{
public:
ColorSelector( SPColorSelector* csel );
virtual ~ColorSelector();
virtual void init();
void setColor( const SPColor& color );
SPColor getColor() const;
void setAlpha( gfloat alpha );
gfloat getAlpha() const;
void setColorAlpha( const SPColor& color, gfloat alpha, bool emit = false );
void getColorAlpha( SPColor &color, gfloat &alpha ) const;
virtual void setSubmode( guint submode );
virtual guint getSubmode() const;
protected:
void _grabbed();
void _released();
void _updateInternals( const SPColor& color, gfloat alpha, gboolean held );
gboolean _isHeld() const { return _held; }
virtual void _colorChanged();
static double _epsilon;
SPColorSelector* _csel;
SPColor _color;
gfloat _alpha; // guaranteed to be in [0, 1].
private:
// By default, disallow copy constructor and assignment operator
ColorSelector( const ColorSelector& obj ) = delete;
ColorSelector& operator=( const ColorSelector& obj ) = delete;
gboolean _held;
bool virgin; // if true, no color is set yet
};
#define SP_TYPE_COLOR_SELECTOR (sp_color_selector_get_type ())
#define SP_COLOR_SELECTOR(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), SP_TYPE_COLOR_SELECTOR, SPColorSelector))
#define SP_COLOR_SELECTOR_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), SP_TYPE_COLOR_SELECTOR, SPColorSelectorClass))
#define SP_IS_COLOR_SELECTOR(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), SP_TYPE_COLOR_SELECTOR))
#define SP_IS_COLOR_SELECTOR_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), SP_TYPE_COLOR_SELECTOR))
#define SP_COLOR_SELECTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SP_TYPE_COLOR_SELECTOR, SPColorSelectorClass))
struct SPColorSelector {
GtkBox vbox;
ColorSelector* base;
};
struct SPColorSelectorClass {
GtkBoxClass parent_class;
const gchar **name;
guint submode_count;
void (* grabbed) (SPColorSelector *rgbsel);
void (* dragged) (SPColorSelector *rgbsel);
void (* released) (SPColorSelector *rgbsel);
void (* changed) (SPColorSelector *rgbsel);
};
GType sp_color_selector_get_type();
GtkWidget *sp_color_selector_new( GType selector_type );
#endif // SEEN_SP_COLOR_SELECTOR_H
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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