Duckstation/src/duckstation-qt/colorpickerbutton.cpp

// SPDX-FileCopyrightText: 2023 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)

#include "colorpickerbutton.h"
#include "qtutils.h"

#include <QtWidgets/QColorDialog>

ColorPickerButton::ColorPickerButton(QWidget* parent) : QPushButton(parent)
{
  connect(this, &QPushButton::clicked, this, &ColorPickerButton::onClicked);
  updateBackgroundColor();
}

u32 ColorPickerButton::color()
{
  return m_color;
}

void ColorPickerButton::setColor(u32 rgb)
{
  if (m_color == rgb)
    return;

  m_color = rgb;
  updateBackgroundColor();
}

void ColorPickerButton::updateBackgroundColor()
{
  setStyleSheet(QStringLiteral("background-color: #%1;").arg(static_cast<uint>(m_color), 8, 16, QChar('0')));
}

void ColorPickerButton::onClicked()
{
  const u32 red = (m_color >> 16) & 0xff;
  const u32 green = (m_color >> 8) & 0xff;
  const u32 blue = m_color & 0xff;

  const QColor initial(QColor::fromRgb(red, green, blue));
  const QColor selected(QColorDialog::getColor(initial, QtUtils::GetRootWidget(this), tr("Select LED Color")));

  // QColorDialog returns Invalid on cancel, and apparently initial == Invalid is true...
  if (!selected.isValid() || initial == selected)
    return;

  const u32 new_rgb = (static_cast<u32>(selected.red()) << 16) | (static_cast<u32>(selected.green()) << 8) |
                      static_cast<u32>(selected.blue());
  m_color = new_rgb;
  updateBackgroundColor();
  emit colorChanged(new_rgb);
}