mirror of
https://github.com/qelectrotech/qelectrotech-source-mirror.git
synced 2026-10-02 16:44:16 +02:00
Jeff Patterson
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "elementpreviewdelegate.h"
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#include <QWidget>
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#include "../qetpalette.h"
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/**
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@brief ElementPreviewDelegate::initStyleOption
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After the base class has filled the option from the model, replace
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the icon with one that reads on a dark palette. The adapted icon is
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built from the pixmap the view is about to draw, at the view's
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decoration size and device pixel ratio.
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*/
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void ElementPreviewDelegate::initStyleOption(QStyleOptionViewItem *option,
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const QModelIndex &index) const
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{
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QStyledItemDelegate::initStyleOption(option, index);
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// The view's icon size is set for the element previews. A theme icon
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// (a folder, a collection root) would scale up to fill it, so those
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// stay at 16 px.
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if (!option->icon.name().isEmpty())
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option->decorationSize = QSize(16, 16);
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if (option->icon.isNull() || !QET::Palette::isDark(option->palette))
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return;
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const qint64 key = option->icon.cacheKey();
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const auto it = m_dark_icons.constFind(key);
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if (it != m_dark_icons.constEnd())
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{
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option->icon = *it;
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return;
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}
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const qreal dpr = option->widget ? option->widget->devicePixelRatio() : 1.0;
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const QPixmap source = option->icon.pixmap(option->decorationSize, dpr);
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const QPixmap adapted = QET::Palette::forPalette(source, option->palette);
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QIcon icon = option->icon;
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if (adapted.cacheKey() != source.cacheKey())
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icon = QIcon(adapted);
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m_dark_icons.insert(key, icon);
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option->icon = icon;
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}
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