File indexing completed on 2024-10-13 12:16:01

 /*
     This file is part of the KDE project
     SPDX-FileCopyrightText: 2019 David Redondo <kde@david-redondo.de>
     SPDX-FileCopyrightText: 2007, 2009 Rafael Fernández López <ereslibre@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "kcategorydrawer.h"
 
 #include <QApplication>
 #include <QPainter>
 #include <QStyleOption>
 
 #include <kcategorizedsortfilterproxymodel.h>
 #include <kcategorizedview.h>
 
 #include <cmath>
 
 class KCategoryDrawerPrivate
 {
 public:
     KCategoryDrawerPrivate(KCategorizedView *view)
         : view(view)
     {
     }
 
     ~KCategoryDrawerPrivate()
     {
     }
 
     KCategorizedView *const view;
 };
 
 KCategoryDrawer::KCategoryDrawer(KCategorizedView *view)
     : QObject(view)
     , d(new KCategoryDrawerPrivate(view))
 {
 }
 
 KCategoryDrawer::~KCategoryDrawer() = default;
 
 void KCategoryDrawer::drawCategory(const QModelIndex &index, int /*sortRole*/, const QStyleOption &option, QPainter *painter) const
 {
     // Keep this in sync with Kirigami.ListSectionHeader
     painter->setRenderHint(QPainter::Antialiasing);
 
     const QString category = index.model()->data(index, KCategorizedSortFilterProxyModel::CategoryDisplayRole).toString();
     QFont font(QApplication::font());
     font.setBold(true);
     const QFontMetrics fontMetrics = QFontMetrics(font);
 
     const int topPadding = 8 + 4; // Kirigami.Units.largeSpacing + smallSpacing
     const int sidePadding = 8; // Kirigami.Units.largeSpacing
 
     // BEGIN: text
     {
         QRect textRect(option.rect);
         textRect.setTop(textRect.top() + topPadding);
         textRect.setLeft(textRect.left() + sidePadding);
         textRect.setRight(textRect.right() - sidePadding);
         textRect.setHeight(fontMetrics.height());
 
         painter->save();
         painter->setFont(font);
         QColor penColor(option.palette.text().color());
         penColor.setAlphaF(0.7);
         painter->setPen(penColor);
         painter->drawText(textRect, Qt::AlignLeft | Qt::AlignVCenter, category);
         painter->restore();
     }
     // END: text
 
     // BEGIN: horizontal line
     {
         QColor backgroundColor = option.palette.text().color();
         backgroundColor.setAlphaF(0.7 * 0.15); // replicate Kirigami.Separator color
         QRect backgroundRect(option.rect);
         backgroundRect.setLeft(fontMetrics.horizontalAdvance(category) + sidePadding * 2);
         backgroundRect.setRight(backgroundRect.right() - sidePadding);
         backgroundRect.setTop(backgroundRect.top() + topPadding + ceil(fontMetrics.height() / 2));
         backgroundRect.setHeight(1);
         painter->save();
         painter->setBrush(backgroundColor);
         painter->setPen(Qt::NoPen);
         painter->drawRect(backgroundRect);
         painter->restore();
     }
     // END: horizontal line
 }
 
 int KCategoryDrawer::categoryHeight(const QModelIndex &index, const QStyleOption &option) const
 {
     Q_UNUSED(index);
     Q_UNUSED(option)
 
     QFont font(QApplication::font());
     QFontMetrics fontMetrics(font);
 
     const int height = fontMetrics.height() + 8 + 8; // Kirigami.Units.largeSpacing + smallSpacing * 2
     return height;
 }
 
 int KCategoryDrawer::leftMargin() const
 {
     return 0;
 }
 
 int KCategoryDrawer::rightMargin() const
 {
     return 0;
 }
 
 KCategorizedView *KCategoryDrawer::view() const
 {
     return d->view;
 }
 
 void KCategoryDrawer::mouseButtonPressed(const QModelIndex &, const QRect &, QMouseEvent *event)
 {
     event->ignore();
 }
 
 void KCategoryDrawer::mouseButtonReleased(const QModelIndex &, const QRect &, QMouseEvent *event)
 {
     event->ignore();
 }
 
 void KCategoryDrawer::mouseMoved(const QModelIndex &, const QRect &, QMouseEvent *event)
 {
     event->ignore();
 }
 
 void KCategoryDrawer::mouseButtonDoubleClicked(const QModelIndex &, const QRect &, QMouseEvent *event)
 {
     event->ignore();
 }
 
 void KCategoryDrawer::mouseLeft(const QModelIndex &, const QRect &)
 {
 }
 
 #include "moc_kcategorydrawer.cpp"