mirror of
https://invent.kde.org/system/dolphin
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126 lines
4.2 KiB
C++
126 lines
4.2 KiB
C++
/**
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* This file is part of the KDE project
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* Copyright (C) 2007 Rafael Fernández López <ereslibre@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "kcategorydrawer.h"
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#include <QPainter>
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#include <QStyleOption>
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#include <kcategorizedsortfilterproxymodel.h>
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KCategoryDrawer::KCategoryDrawer()
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{
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}
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KCategoryDrawer::~KCategoryDrawer()
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{
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}
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void KCategoryDrawer::drawCategory(const QModelIndex &index,
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int sortRole,
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const QStyleOption &option,
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QPainter *painter) const
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{
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const QString category = index.model()->data(index, KCategorizedSortFilterProxyModel::CategoryRole).toString();
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QColor color;
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if (option.state & QStyle::State_Selected)
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{
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color = option.palette.color(QPalette::HighlightedText);
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}
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else
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{
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color = option.palette.color(QPalette::Text);
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}
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing);
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QStyleOptionButton opt;
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opt.rect = option.rect;
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opt.palette = option.palette;
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opt.direction = option.direction;
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opt.text = category;
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if (option.state & QStyle::State_Selected)
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{
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QColor selected = option.palette.color(QPalette::Highlight);
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QLinearGradient gradient(option.rect.topLeft(),
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option.rect.bottomRight());
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gradient.setColorAt(option.direction == Qt::LeftToRight ? 0
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: 1, selected);
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gradient.setColorAt(option.direction == Qt::LeftToRight ? 1
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: 0, Qt::transparent);
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painter->fillRect(option.rect, gradient);
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}
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else if (option.state & QStyle::State_MouseOver)
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{
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QColor hover = option.palette.color(QPalette::Highlight).light();
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hover.setAlpha(88);
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QLinearGradient gradient(option.rect.topLeft(),
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option.rect.bottomRight());
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gradient.setColorAt(option.direction == Qt::LeftToRight ? 0
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: 1, hover);
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gradient.setColorAt(option.direction == Qt::LeftToRight ? 1
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: 0, Qt::transparent);
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painter->fillRect(option.rect, gradient);
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}
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QFont painterFont = painter->font();
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painterFont.setWeight(QFont::Bold);
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painterFont.setPointSize(painterFont.pointSize() + 2);
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QFontMetrics metrics(painterFont);
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painter->setFont(painterFont);
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QPainterPath path;
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path.addRect(option.rect.left(),
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option.rect.bottom() - 2,
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option.rect.width(),
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2);
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QLinearGradient gradient(option.rect.topLeft(),
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option.rect.bottomRight());
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gradient.setColorAt(option.direction == Qt::LeftToRight ? 0
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: 1, color);
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gradient.setColorAt(option.direction == Qt::LeftToRight ? 1
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: 0, Qt::transparent);
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painter->setBrush(gradient);
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painter->fillPath(path, gradient);
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painter->setPen(color);
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painter->drawText(option.rect, Qt::AlignVCenter | Qt::AlignLeft,
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metrics.elidedText(category, Qt::ElideRight, option.rect.width()));
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painter->restore();
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}
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int KCategoryDrawer::categoryHeight(const QStyleOption &option) const
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{
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return option.fontMetrics.height() + 6 /* 4 separator; 2 gradient */;
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}
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