kis_palette_delegate.cpp

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/*
 *  SPDX-FileCopyrightText: 2016 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "kis_palette_delegate.h"
 
#include <QPen>
#include <QPainter>
 
#include <kis_global.h>
#include "kis_debug.h"
#include <KisPaletteModel.h>
 
 
KisPaletteDelegate::KisPaletteDelegate(QObject *parent)
    : QAbstractItemDelegate(parent)
{
}
 
KisPaletteDelegate::~KisPaletteDelegate()
{
}
 
void KisPaletteDelegate::setCrossedKeyword(const QString &value)
{
    m_crossedKeyword = value;
}
 
void KisPaletteDelegate::paint(QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index) const
{
    painter->save();
 
    if (! index.isValid())
        return;
 
    const bool isSelected = option.state & QStyle::State_Selected;
    const int minSize = qMin(option.rect.width(), option.rect.height());
    const int maxWidth = qBound(2, minSize / 6, 4);
    const int width = isSelected ? maxWidth : 1;
 
    if (qvariant_cast<bool>(index.data(KisPaletteModel::IsHeaderRole))) {
        QString name = qvariant_cast<QString>(index.data(Qt::DisplayRole));
        if (isSelected) {
            painter->fillRect(option.rect, option.palette.highlight());
        }
        QRect paintRect = kisGrowRect(option.rect, -width);
        painter->drawText(paintRect, name);
    } else {
        if (isSelected) {
            painter->fillRect(option.rect, option.palette.highlight());
        }
        QRect paintRect = kisGrowRect(option.rect, -width);
        QBrush brush = qvariant_cast<QBrush>(index.data(Qt::BackgroundRole));
        painter->fillRect(paintRect, brush);
    }
    painter->restore();
 
    QString name = qvariant_cast<QString>(index.data(Qt::DisplayRole));
    if (!m_crossedKeyword.isNull() && name.toLower().contains(m_crossedKeyword)) {
        QRect crossRect = kisGrowRect(option.rect, -maxWidth);
 
        painter->save();
        painter->setRenderHint(QPainter::Antialiasing, true);
        painter->setPen(QPen(Qt::white, 2.5));
        painter->drawLine(crossRect.topLeft(), crossRect.bottomRight());
        painter->setPen(QPen(Qt::red, 1.0));
        painter->drawLine(crossRect.topLeft(), crossRect.bottomRight());
        painter->restore();
    }
}
 
QSize KisPaletteDelegate::sizeHint(const QStyleOptionViewItem & option, const QModelIndex &) const
{
    return option.decorationSize;
}