d49a7412f5
Address a ### Qt6 comment from change
283008e123
, and start using
QStyledItemDelegate in more places, so those get proper
look and feel.
Change-Id: I39767ba99b7942faada1fba0ac241deb35563b63
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
139 lines
5.5 KiB
C++
139 lines
5.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** * Neither the name of The Qt Company Ltd nor the names of its
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "bookdelegate.h"
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#include <QtWidgets>
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BookDelegate::BookDelegate(QObject *parent)
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: QSqlRelationalDelegate(parent), star(QPixmap(":images/star.png"))
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{
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}
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void BookDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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{
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if (index.column() != 5) {
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QSqlRelationalDelegate::paint(painter, option, index);
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} else {
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const QAbstractItemModel *model = index.model();
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QPalette::ColorGroup cg = (option.state & QStyle::State_Enabled) ?
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(option.state & QStyle::State_Active) ?
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QPalette::Normal :
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QPalette::Inactive :
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QPalette::Disabled;
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if (option.state & QStyle::State_Selected)
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painter->fillRect(
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option.rect,
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option.palette.color(cg, QPalette::Highlight));
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int rating = model->data(index, Qt::DisplayRole).toInt();
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int width = star.width();
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int height = star.height();
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int x = option.rect.x();
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int y = option.rect.y() + (option.rect.height() / 2) - (height / 2);
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for (int i = 0; i < rating; ++i) {
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painter->drawPixmap(x, y, star);
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x += width;
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}
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}
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QPen pen = painter->pen();
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painter->setPen(option.palette.color(QPalette::Mid));
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painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
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painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
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painter->setPen(pen);
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}
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QSize BookDelegate::sizeHint(const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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{
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if (index.column() == 5)
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return QSize(5 * star.width(), star.height()) + QSize(1, 1);
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// Since we draw the grid ourselves:
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return QSqlRelationalDelegate::sizeHint(option, index) + QSize(1, 1);
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}
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bool BookDelegate::editorEvent(QEvent *event, QAbstractItemModel *model,
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const QStyleOptionViewItem &option,
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const QModelIndex &index)
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{
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if (index.column() != 5)
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return QSqlRelationalDelegate::editorEvent(event, model, option, index);
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if (event->type() == QEvent::MouseButtonPress) {
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QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
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int stars = qBound(0, int(0.7 + qreal(mouseEvent->position().toPoint().x()
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- option.rect.x()) / star.width()), 5);
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model->setData(index, QVariant(stars));
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// So that the selection can change:
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return false;
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}
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return true;
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}
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QWidget *BookDelegate::createEditor(QWidget *parent,
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const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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{
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if (index.column() != 4)
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return QSqlRelationalDelegate::createEditor(parent, option, index);
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// For editing the year, return a spinbox with a range from -1000 to 2100.
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QSpinBox *sb = new QSpinBox(parent);
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sb->setFrame(false);
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sb->setMaximum(2100);
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sb->setMinimum(-1000);
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return sb;
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}
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