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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "bookdelegate.h"
#include <QMouseEvent>
#include <QPainter>
#include <QSpinBox>
void BookDelegate::paint(QPainter *painter,
const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.column() != 5) {
QSqlRelationalDelegate::paint(painter, option, index);
} else {
const QAbstractItemModel *model = index.model();
QPalette::ColorGroup cg = (option.state & QStyle::State_Enabled) ?
(option.state & QStyle::State_Active) ?
QPalette::Normal :
QPalette::Inactive :
QPalette::Disabled;
if (option.state & QStyle::State_Selected)
painter->fillRect(
option.rect,
option.palette.color(cg, QPalette::Highlight));
const int rating = model->data(index, Qt::DisplayRole).toInt();
const int width = iconDimension;
const int height = width;
// add cellPadding / 2 to center the stars in the cell
int x = option.rect.x() + cellPadding / 2;
int y = option.rect.y() + (option.rect.height() / 2) - (height / 2);
QIcon starIcon(QStringLiteral(":images/star.svg"));
QIcon starFilledIcon(QStringLiteral(":images/star-filled.svg"));
for (int i = 0; i < 5; ++i) {
if (i < rating)
starFilledIcon.paint(painter, QRect(x, y, width, height));
else
starIcon.paint(painter, QRect(x, y, width, height));
x += width;
}
}
}
QSize BookDelegate::sizeHint(const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.column() == 5)
return QSize(5 * iconDimension, iconDimension) + QSize(cellPadding, cellPadding);
// Since we draw the grid ourselves:
return QSqlRelationalDelegate::sizeHint(option, index) + QSize(cellPadding, cellPadding);
}
bool BookDelegate::editorEvent(QEvent *event, QAbstractItemModel *model,
const QStyleOptionViewItem &option,
const QModelIndex &index)
{
if (index.column() != 5)
return QSqlRelationalDelegate::editorEvent(event, model, option, index);
if (event->type() == QEvent::MouseButtonPress) {
QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
int stars = qBound(0, int(0.7 + qreal(mouseEvent->position().x()
- option.rect.x()) / iconDimension), 5);
model->setData(index, QVariant(stars));
// So that the selection can change:
return false;
}
return true;
}
QWidget *BookDelegate::createEditor(QWidget *parent,
const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.column() != 4)
return QSqlRelationalDelegate::createEditor(parent, option, index);
// For editing the year, return a spinbox with a range from -1000 to 2100.
QSpinBox *sb = new QSpinBox(parent);
sb->setFrame(false);
sb->setMaximum(2100);
sb->setMinimum(-1000);
return sb;
}
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