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