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/************************************************************************
**
** Copyright (C) 2019-2021 Kevin B. Hendricks, Stratford Ontario Canada
** Copyright (C) 2012 John Schember <john@nachtimwald.com>
** Copyright (C) 2012 Grant Drake
** Copyright (C) 2012 Dave Heiland
**
** This file is part of PageEdit.
**
** PageEdit is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** PageEdit is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with PageEdit. If not, see <http://www.gnu.org/licenses/>.
**
*************************************************************************/
#include <QApplication>
#include <QTimer>
#include <QStyleFactory>
#include <QStyle>
#include <QPalette>
#include <QDebug>
#include "MainApplication.h"
MainApplication::MainApplication(int &argc, char **argv)
: QApplication(argc, argv),
m_Style(nullptr),
m_isDark(false)
{
#ifdef Q_OS_MAC
// on macOS the application palette actual text colors never seem to change when DarkMode is enabled
// so use a mac style standardPalette
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
m_Style = QStyleFactory::create("macintosh");
#else
m_Style = QStyleFactory::create("macos");
#endif
QPalette app_palette = m_Style->standardPalette();
m_isDark = app_palette.color(QPalette::Active,QPalette::WindowText).lightness() > 128;
fixMacDarkModePalette(app_palette);
// set the initial app palette
setPalette(app_palette);
#endif
}
void MainApplication::fixMacDarkModePalette(QPalette &pal)
{
# ifdef Q_OS_MAC
// See QTBUG-75321 and follow Kovid's workaround for broken ButtonText always being dark
pal.setColor(QPalette::ButtonText, pal.color(QPalette::WindowText));
if (m_isDark) {
// make alternating base color change not so sharp
pal.setColor(QPalette::AlternateBase, pal.color(QPalette::Base).lighter(150));
// make link color better for dark mode (try to match calibre for consistency)
pal.setColor(QPalette::Link, QColor("#6cb4ee"));
}
#endif
}
bool MainApplication::event(QEvent *pEvent)
{
if (pEvent->type() == QEvent::ApplicationActivate) {
emit applicationActivated();
} else if (pEvent->type() == QEvent::ApplicationDeactivate) {
emit applicationDeactivated();
}
#ifdef Q_OS_MAC
if (pEvent->type() == QEvent::ApplicationPaletteChange) {
// qDebug() << "Application Palette Changed";
QTimer::singleShot(0, this, SLOT(EmitPaletteChanged()));
}
#endif
return QApplication::event(pEvent);
}
void MainApplication::EmitPaletteChanged()
{
#ifdef Q_OS_MAC
// on macOS the application palette actual colors never seem to change after launch
// even when DarkMode is enabled. So we use a mac style standardPalette to determine
// if a drak vs light mode transition has been made and then use it to set the
// Application palette
QPalette app_palette = m_Style->standardPalette();
bool isdark = app_palette.color(QPalette::Active,QPalette::WindowText).lightness() > 128;
if (m_isDark != isdark) {
// qDebug() << "Theme changed " << "was isDark:" << m_isDark << "now isDark:" << isdark;
m_isDark = isdark;
fixMacDarkModePalette(app_palette);
setPalette(app_palette);
emit applicationPaletteChanged();
}
#endif
}
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