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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "colorbutton.h"
#include <QPainter>
static inline QPixmap tilePixMap(int size)
{
const int checkerbordSize= size;
QPixmap tilePixmap(checkerbordSize * 2, checkerbordSize * 2);
tilePixmap.fill(Qt::white);
QPainter tilePainter(&tilePixmap);
QColor color(220, 220, 220);
tilePainter.fillRect(0, 0, checkerbordSize, checkerbordSize, color);
tilePainter.fillRect(checkerbordSize, checkerbordSize, checkerbordSize, checkerbordSize, color);
return tilePixmap;
}
static inline bool isColorString(const QString &colorString)
{
bool ok = true;
if (colorString.size() == 9 && colorString.at(0) == QLatin1Char('#')) {
// #rgba
for (int i = 1; i < 9; ++i) {
const QChar c = colorString.at(i);
if ((c >= QLatin1Char('0') && c <= QLatin1Char('9'))
|| (c >= QLatin1Char('a') && c <= QLatin1Char('f'))
|| (c >= QLatin1Char('A') && c <= QLatin1Char('F')))
continue;
ok = false;
break;
}
} else {
ok = QColor::isValidColor(colorString);
}
return ok;
}
static inline QColor properColor(const QString &str)
{
if (str.isEmpty())
return QColor();
int lalpha = 255;
QString lcolorStr = str;
const QChar hash = QLatin1Char('#');
if (lcolorStr.at(0) == hash && lcolorStr.length() == 9) {
QString alphaStr = lcolorStr;
alphaStr.truncate(3);
lcolorStr.remove(0, 3);
lcolorStr = hash + lcolorStr;
alphaStr.remove(0,1);
bool v;
lalpha = alphaStr.toInt(&v, 16);
if (!v)
lalpha = 255;
}
QColor lcolor(lcolorStr);
if (lcolorStr.contains(hash))
lcolor.setAlpha(lalpha);
return lcolor;
}
namespace QmlEditorWidgets {
void ColorButton::setColor(const QVariant &colorStr)
{
if (m_colorString == colorStr.toString())
return;
setEnabled(isColorString(colorStr.toString()));
m_colorString = colorStr.toString();
update();
emit colorChanged();
}
QColor ColorButton::convertedColor() const
{
return properColor(m_colorString);
}
void ColorButton::paintEvent(QPaintEvent *event)
{
QToolButton::paintEvent(event);
if (!isEnabled())
return;
QColor color = properColor(m_colorString);
QPainter p(this);
QRect r(0, 0, width() - 2, height() - 2);
p.drawTiledPixmap(r.adjusted(1, 1, -1, -1), tilePixMap(9));
if (isEnabled())
p.setBrush(color);
else
p.setBrush(Qt::transparent);
if (color.value() > 80)
p.setPen(QColor(0x444444));
else
p.setPen(QColor(0x9e9e9e));
p.drawRect(r.translated(1, 1));
if (m_showArrow) {
p.setRenderHint(QPainter::Antialiasing, true);
QVector<QPointF> points;
if (isChecked()) {
points.append(QPointF(2, 3));
points.append(QPointF(8, 3));
points.append(QPointF(5, 9));
} else {
points.append(QPointF(8, 6));
points.append(QPointF(2, 9));
points.append(QPointF(2, 3));
}
p.translate(0.5, 0.5);
p.setBrush(QColor(0xaaaaaa));
p.setPen(QColor(0x444444));
p.drawPolygon(points);
}
}
} //QmlEditorWidgets
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