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| |
| #include "bookdelegate.h" |
| |
| #include <QtWidgets> |
| |
| BookDelegate::BookDelegate(QObject *parent) |
| : QSqlRelationalDelegate(parent), star(QPixmap(":images/star.png")) |
| { |
| } |
| |
| void BookDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, |
| const QModelIndex &index) const |
| { |
| if (index.column() != 5) { |
| QStyleOptionViewItem opt = option; |
| // Since we draw the grid ourselves: |
| opt.rect.adjust(0, 0, -1, -1); |
| QSqlRelationalDelegate::paint(painter, opt, 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)); |
| |
| int rating = model->data(index, Qt::DisplayRole).toInt(); |
| int width = star.width(); |
| int height = star.height(); |
| int x = option.rect.x(); |
| int y = option.rect.y() + (option.rect.height() / 2) - (height / 2); |
| for (int i = 0; i < rating; ++i) { |
| painter->drawPixmap(x, y, star); |
| x += width; |
| } |
| // Since we draw the grid ourselves: |
| drawFocus(painter, option, option.rect.adjusted(0, 0, -1, -1)); |
| } |
| |
| QPen pen = painter->pen(); |
| painter->setPen(option.palette.color(QPalette::Mid)); |
| painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight()); |
| painter->drawLine(option.rect.topRight(), option.rect.bottomRight()); |
| painter->setPen(pen); |
| } |
| |
| QSize BookDelegate::sizeHint(const QStyleOptionViewItem &option, |
| const QModelIndex &index) const |
| { |
| if (index.column() == 5) |
| return QSize(5 * star.width(), star.height()) + QSize(1, 1); |
| // Since we draw the grid ourselves: |
| return QSqlRelationalDelegate::sizeHint(option, index) + QSize(1, 1); |
| } |
| |
| 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->pos().x() |
| - option.rect.x()) / star.width()), 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; |
| } |