Clementine-audio-player-Mac.../src/core/stylesheetloader.cpp

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/* This file is part of Clementine.
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "stylesheetloader.h"
#include <QtDebug>
#include <QFile>
#include <QEvent>
StyleSheetLoader::StyleSheetLoader(QObject* parent)
: QObject(parent)
{
}
void StyleSheetLoader::SetStyleSheet(QWidget* widget, const QString &filename) {
filenames_[widget] = filename;
widget->installEventFilter(this);
UpdateStyleSheet(widget);
}
void StyleSheetLoader::UpdateStyleSheet(QWidget *widget) {
QString filename(filenames_[widget]);
// Load the file
QFile file(filename);
if (!file.open(QIODevice::ReadOnly)) {
qWarning() << __PRETTY_FUNCTION__ << "error opening" << filename;
return;
}
QString contents(file.readAll());
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// Replace %palette-role with actual colours
QPalette p(widget->palette());
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QColor alt = p.color(QPalette::AlternateBase);
alt.setAlpha(50);
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contents.replace("%palette-alternate-base", QString("rgba(%1,%2,%3,%4%)")
.arg(alt.red()).arg(alt.green()).arg(alt.blue()).arg(alt.alpha()));
ReplaceColor(&contents, "Window", p, QPalette::Window);
ReplaceColor(&contents, "Background", p, QPalette::Background);
ReplaceColor(&contents, "WindowText", p, QPalette::WindowText);
ReplaceColor(&contents, "Foreground", p, QPalette::Foreground);
ReplaceColor(&contents, "Base", p, QPalette::Base);
ReplaceColor(&contents, "AlternateBase", p, QPalette::AlternateBase);
ReplaceColor(&contents, "ToolTipBase", p, QPalette::ToolTipBase);
ReplaceColor(&contents, "ToolTipText", p, QPalette::ToolTipText);
ReplaceColor(&contents, "Text", p, QPalette::Text);
ReplaceColor(&contents, "Button", p, QPalette::Button);
ReplaceColor(&contents, "ButtonText", p, QPalette::ButtonText);
ReplaceColor(&contents, "BrightText", p, QPalette::BrightText);
ReplaceColor(&contents, "Light", p, QPalette::Light);
ReplaceColor(&contents, "Midlight", p, QPalette::Midlight);
ReplaceColor(&contents, "Dark", p, QPalette::Dark);
ReplaceColor(&contents, "Mid", p, QPalette::Mid);
ReplaceColor(&contents, "Shadow", p, QPalette::Shadow);
ReplaceColor(&contents, "Highlight", p, QPalette::Highlight);
ReplaceColor(&contents, "HighlightedText", p, QPalette::HighlightedText);
ReplaceColor(&contents, "Link", p, QPalette::Link);
ReplaceColor(&contents, "LinkVisited", p, QPalette::LinkVisited);
widget->setStyleSheet(contents);
}
void StyleSheetLoader::ReplaceColor(QString* css, const QString& name,
const QPalette& palette,
QPalette::ColorRole role) const {
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)
return false;
if (!event->spontaneous()) // Ignore events from our setStyleSheet
return false;
QWidget* widget = qobject_cast<QWidget*>(obj);
if (!widget || !filenames_.contains(widget))
return false;
UpdateStyleSheet(widget);
return false;
}