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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* Color selected in color selector widget.
* This file was created during the refactoring of SPColorSelector
*//*
* Authors:
* bulia byak <buliabyak@users.sf.net>
* Jon A. Cruz <jon@joncruz.org>
* Tomasz Boczkowski <penginsbacon@gmail.com>
*
* Copyright (C) 2014 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <glibmm/ustring.h>
#include <cmath>
#include "svg/svg-icc-color.h"
#include "ui/selected-color.h"
namespace Inkscape {
namespace UI {
double const SelectedColor::_EPSILON = 1e-4;
SelectedColor::SelectedColor()
: _color(0)
, _alpha(1.0)
, _held(false)
, _virgin(true)
, _updating(false)
{
}
SelectedColor::~SelectedColor() = default;
void SelectedColor::setColor(SPColor const &color)
{
setColorAlpha( color, _alpha);
}
SPColor SelectedColor::color() const
{
return _color;
}
void SelectedColor::setAlpha(gfloat alpha)
{
g_return_if_fail( ( 0.0 <= alpha ) && ( alpha <= 1.0 ) );
setColorAlpha( _color, alpha);
}
gfloat SelectedColor::alpha() const
{
return _alpha;
}
void SelectedColor::setValue(guint32 value)
{
SPColor color(value);
gfloat alpha = SP_RGBA32_A_F(value);
setColorAlpha(color, alpha);
}
guint32 SelectedColor::value() const
{
return color().toRGBA32(_alpha);
}
void SelectedColor::setColorAlpha(SPColor const &color, gfloat alpha, bool emit_signal)
{
#ifdef DUMP_CHANGE_INFO
g_message("SelectedColor::setColorAlpha( this=%p, %f, %f, %f, %s, %f, %s)", this, color.v.c[0], color.v.c[1], color.v.c[2], (color.icc?color.icc->colorProfile.c_str():"<null>"), alpha, (emit_signal?"YES":"no"));
#endif
g_return_if_fail( ( 0.0 <= alpha ) && ( alpha <= 1.0 ) );
if (_updating) {
return;
}
#ifdef DUMP_CHANGE_INFO
g_message("---- SelectedColor::setColorAlpha virgin:%s !close:%s alpha is:%s",
(_virgin?"YES":"no"),
(!color.isClose( _color, _EPSILON )?"YES":"no"),
((fabs((_alpha) - (alpha)) >= _EPSILON )?"YES":"no")
);
#endif
if ( _virgin || !color.isClose( _color, _EPSILON ) ||
(fabs((_alpha) - (alpha)) >= _EPSILON )) {
_virgin = false;
_color = color;
_alpha = alpha;
if (emit_signal)
{
_updating = true;
if (_held) {
signal_dragged.emit();
} else {
signal_changed.emit();
}
_updating = false;
}
#ifdef DUMP_CHANGE_INFO
} else {
g_message("++++ SelectedColor::setColorAlpha color:%08x ==> _color:%08X isClose:%s", color.toRGBA32(alpha), _color.toRGBA32(_alpha),
(color.isClose( _color, _EPSILON )?"YES":"no"));
#endif
}
}
void SelectedColor::colorAlpha(SPColor &color, gfloat &alpha) const {
color = _color;
alpha = _alpha;
}
void SelectedColor::setHeld(bool held) {
if (_updating) {
return;
}
bool grabbed = held && !_held;
bool released = !held && _held;
_held = held;
_updating = true;
if (grabbed) {
signal_grabbed.emit();
}
if (released) {
signal_released.emit();
// signal_changed.emit(); // TODO: signal_changed isn't emitted after dragging!
}
_updating = false;
}
void SelectedColor::preserveICC() {
_color.icc = _color.icc ? new SVGICCColor(*_color.icc) : nullptr;
}
}
}
/*
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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