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/*
trailingcolorlabel.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2017 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Christoph Sterz <christoph.sterz@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "trailingcolorlabel.h"
#include <QFontMetrics>
#include <QPainter>
#include <QPaintEvent>
#include <QStyle>
namespace GammaRay {
TrailingColorLabel::TrailingColorLabel(QWidget *parent)
: QLabel(parent)
{
setAttribute(Qt::WA_TransparentForMouseEvents);
m_pickedColor = qRgba(0, 0, 0, 0);
setHidden(true);
}
void TrailingColorLabel::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
QPainter p(this);
QFontMetrics metrics(p.font());
const int margin = 5;
const int squaresize = 20;
const int height = 30;
const int numberGroupWidth = metrics.horizontalAdvance(QStringLiteral(" 000"));
const int width = margin + squaresize + margin + 4 * numberGroupWidth + margin;
setMinimumSize(QSize(width + 1, height + 1));
p.setPen(QPen(Qt::lightGray));
p.setBrush(palette().base());
p.drawRect(0, 0, width, height);
p.setPen(QPen(palette().color(QPalette::Normal, QPalette::Text)));
p.drawText(QRect(margin + squaresize + margin + 0 * numberGroupWidth, 0, numberGroupWidth, height),
Qt::AlignVCenter | Qt::AlignRight,
QString::number(qRed(m_pickedColor)));
p.drawText(QRect(margin + squaresize + margin + 1 * numberGroupWidth, 0, numberGroupWidth, height),
Qt::AlignVCenter | Qt::AlignRight,
QString::number(qGreen(m_pickedColor)));
p.drawText(QRect(margin + squaresize + margin + 2 * numberGroupWidth, 0, numberGroupWidth, height),
Qt::AlignVCenter | Qt::AlignRight,
QString::number(qBlue(m_pickedColor)));
// alpha
p.setPen(QPen(palette().color(QPalette::Disabled, QPalette::Text)));
p.drawText(QRect(margin + squaresize + margin + 3 * numberGroupWidth + 2, 0, numberGroupWidth, height),
Qt::AlignVCenter | Qt::AlignLeft,
QStringLiteral("|"));
p.drawText(QRect(margin + squaresize + margin + 3 * numberGroupWidth, 0, numberGroupWidth, height),
Qt::AlignVCenter | Qt::AlignRight,
QString::number(qAlpha(m_pickedColor)));
{ // Color bg-pattern
QBrush brush;
QPixmap bgPattern(squaresize, squaresize);
bgPattern.fill(Qt::lightGray);
QPainter bgPainter(&bgPattern);
bgPainter.fillRect(10, 0, 10, 10, Qt::gray);
bgPainter.fillRect(0, 10, 10, 10, Qt::gray);
brush.setTexture(bgPattern);
p.setBrush(brush);
p.drawRect(margin, margin, squaresize, squaresize);
}
QColor color = QColor::fromRgba(m_pickedColor);
p.setBrush(QBrush(color));
p.setPen(QPen(Qt::black));
p.drawRect(margin, margin, squaresize, squaresize);
}
QColor TrailingColorLabel::pickedColor() const
{
return QColor::fromRgba(m_pickedColor);
}
void TrailingColorLabel::setPickedColor(QRgb color)
{
m_pickedColor = color;
}
}
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