strawberry-audio-player-win.../src/core/stylesheetloader.cpp

147 lines
4.8 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
* Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry 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.
*
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <memory>
#include <QtGlobal>
#include <QObject>
#include <QWidget>
#include <QHash>
#include <QTimer>
#include <QIODevice>
#include <QTextStream>
#include <QFile>
#include <QString>
#include <QColor>
#include <QPalette>
#include <QEvent>
#include <QtDebug>
#include "core/logging.h"
#include "stylesheetloader.h"
StyleSheetLoader::StyleSheetLoader(QObject *parent) : QObject(parent) {}
void StyleSheetLoader::SetStyleSheet(QWidget *widget, const QString &filename) {
// Load the file
QFile file(filename);
if (!file.open(QIODevice::ReadOnly)) {
qLog(Error) << "Could not open stylesheet file" << filename << "for reading:" << file.errorString();
return;
}
QTextStream stream(&file);
QString stylesheet;
forever {
QString line = stream.readLine();
stylesheet.append(line);
if (stream.atEnd()) break;
}
file.close();
std::shared_ptr<StyleSheetData> styledata = std::make_shared<StyleSheetData>();
styledata->filename_ = filename;
styledata->stylesheet_template_ = stylesheet;
styledata->stylesheet_current_ = widget->styleSheet();
styledata_.insert(widget, styledata);
widget->installEventFilter(this);
UpdateStyleSheet(widget, styledata);
}
void StyleSheetLoader::UpdateStyleSheet(QWidget *widget, std::shared_ptr<StyleSheetData> styledata) {
QString stylesheet = styledata->stylesheet_template_;
// Replace %palette-role with actual colours
QPalette p(widget->palette());
{
QColor alt = p.color(QPalette::AlternateBase);
#ifdef Q_OS_MACOS
if (alt.lightness() > 180) {
alt.setAlpha(130);
}
else {
alt.setAlpha(16);
}
#else
alt.setAlpha(130);
#endif
stylesheet.replace("%palette-alternate-base", QString("rgba(%1,%2,%3,%4)").arg(alt.red()).arg(alt.green()).arg(alt.blue()).arg(alt.alpha()));
}
ReplaceColor(&stylesheet, "Window", p, QPalette::Window);
ReplaceColor(&stylesheet, "Background", p, QPalette::Window);
ReplaceColor(&stylesheet, "WindowText", p, QPalette::WindowText);
ReplaceColor(&stylesheet, "Base", p, QPalette::Base);
ReplaceColor(&stylesheet, "AlternateBase", p, QPalette::AlternateBase);
ReplaceColor(&stylesheet, "ToolTipBase", p, QPalette::ToolTipBase);
ReplaceColor(&stylesheet, "ToolTipText", p, QPalette::ToolTipText);
ReplaceColor(&stylesheet, "Text", p, QPalette::Text);
ReplaceColor(&stylesheet, "Button", p, QPalette::Button);
ReplaceColor(&stylesheet, "ButtonText", p, QPalette::ButtonText);
ReplaceColor(&stylesheet, "BrightText", p, QPalette::BrightText);
ReplaceColor(&stylesheet, "Light", p, QPalette::Light);
ReplaceColor(&stylesheet, "Midlight", p, QPalette::Midlight);
ReplaceColor(&stylesheet, "Dark", p, QPalette::Dark);
ReplaceColor(&stylesheet, "Mid", p, QPalette::Mid);
ReplaceColor(&stylesheet, "Shadow", p, QPalette::Shadow);
ReplaceColor(&stylesheet, "Highlight", p, QPalette::Highlight);
ReplaceColor(&stylesheet, "HighlightedText", p, QPalette::HighlightedText);
ReplaceColor(&stylesheet, "Link", p, QPalette::Link);
ReplaceColor(&stylesheet, "LinkVisited", p, QPalette::LinkVisited);
#ifdef Q_OS_MACOS
stylesheet.replace("macos", "*");
#endif
if (stylesheet != styledata->stylesheet_current_) {
styledata->stylesheet_current_ = stylesheet;
widget->setStyleSheet(stylesheet);
}
}
void StyleSheetLoader::ReplaceColor(QString *css, const QString &name, const QPalette &palette, const QPalette::ColorRole role) {
css->replace("%palette-" + name + "-lighter", palette.color(role).lighter().name(), Qt::CaseInsensitive);
css->replace("%palette-" + name + "-darker", palette.color(role).darker().name(), Qt::CaseInsensitive);
css->replace("%palette-" + name, palette.color(role).name(), Qt::CaseInsensitive);
}
bool StyleSheetLoader::eventFilter(QObject *obj, QEvent *event) {
if (event->type() == QEvent::PaletteChange) {
QWidget *widget = qobject_cast<QWidget*>(obj);
if (widget && styledata_.contains(widget)) {
UpdateStyleSheet(widget, styledata_[widget]);
}
}
return false;
}