QTableView同时显示自定义Checkbox和文件图标

#include "checkboxdelegate.h" #include <QDebug> #include <QTextOption> #include <QPainter> #include <QCheckBox> #include <QEvent> #include <QMouseEvent> #include <QApplication> #include <QRect> #include <QPoint> #include <QPalette> #include <QPixmapCache> #include <QFileIconProvider> #include <QIcon> #include <QPixmap> #define CHECK_BOX_COLUMN 0 #define File_PATH_COLUMN 1 //static QRect CheckBoxRect(const QStyleOptionViewItem &viewItemStyleOptions)/*const*/ //{ // //绘制按钮所需要的参数 // QStyleOptionButton checkBoxStyleOption; // //按照给定的风格参数 返回元素子区域 // QRect checkBoxRect = QApplication::style()->subElementRect( QStyle::SE_CheckBoxIndicator, &checkBoxStyleOption); // //返回QCheckBox坐标 // QPoint checkBoxPoint(viewItemStyleOptions.rect.x() + viewItemStyleOptions.rect.width() / 2 - checkBoxRect.width() / 2, // viewItemStyleOptions.rect.y() + viewItemStyleOptions.rect.height() / 2 - checkBoxRect.height() / 2); // //返回QCheckBox几何形状 // return QRect(checkBoxPoint, checkBoxRect.size()); //} CheckBoxDelegate::CheckBoxDelegate(QObject *parent) :QStyledItemDelegate(parent) { m_pCheckBox = new QCheckBox; m_pCheckBox->setFixedSize(qRound(1.3 * m_pCheckBox->sizeHint().height()), m_pCheckBox->sizeHint().height()); m_pCheckBox->setStyleSheet("QCheckBox::indicator:unchecked {image: url(:/res/unchecked.png);} \ QCheckBox::indicator:unchecked:hover {image: url(:/res/uncheckedHover.png);} \ QCheckBox::indicator:unchecked:pressed {image: url(:/res/uncheckedPressing.png);} \ QCheckBox::indicator:checked {image: url(:/res/checked.png);} \ QCheckBox::indicator:checked:hover {image: url(:/res/checkedHover.png);} \ QCheckBox::indicator:checked:pressed {image: url(:/res/checkedPressing.png);} \ QCheckBox::indicator:indeterminate {image: url(:/res/partiallyChecked.png);} \ QCheckBox::indicator:indeterminate:hover {image: url(:/res/partiallyCheckedHover.png);} \ QCheckBox::indicator:indeterminate:pressed {image: url(:/res/partiallyCheckedPressing.png);}"); qDebug() << "CheckBoxDelegate::new ===========CheckBoxDelegate====m_pCheckBox==" << m_pCheckBox << sizeof(*m_pCheckBox); m_pLabel = new QLabel; m_pLabel->setWordWrap(false); } CheckBoxDelegate::~CheckBoxDelegate() { delete m_pCheckBox; m_pCheckBox = NULL; delete m_pLabel; m_pLabel = NULL; qDebug() << "CheckBoxDelegate::~CheckBoxDelegate====m_pCheckBox==" << m_pCheckBox; } void CheckBoxDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { if (index.column() == CHECK_BOX_COLUMN) { qDebug() << "CheckBoxDelegate::paint=====column================" << index.column(); bool selected = option.state & QStyle::State_Selected; QPalette palette(option.palette); palette.setColor(QPalette::Active, QPalette::Window, selected ? option.palette.highlight().color() : option.palette.base().color()); palette.setColor(QPalette::Active, QPalette::WindowText, selected ? option.palette.highlightedText().color() : option.palette.text().color()); int yOffset = m_pCheckBox->height() < option.rect.height() ? (option.rect.height() - m_pCheckBox->height()) / 2 : 0; QRect checkboxRect(option.rect.x(), option.rect.y() + yOffset, m_pCheckBox->width(), m_pCheckBox->height()); m_pCheckBox->setPalette(palette); int checked = index.model()->data(index, Qt::CheckStateRole).toInt(); if(0 == checked) { m_pCheckBox->setCheckState(Qt::Unchecked); } else if(1 == checked) { m_pCheckBox->setCheckState(Qt::PartiallyChecked); } else { m_pCheckBox->setCheckState(Qt::Checked); } QRect labelRect(option.rect.x() + m_pCheckBox->width(),option.rect.y(), \ option.rect.width() - m_pCheckBox->width(), option.rect.height()); m_pLabel->setPalette(palette); m_pLabel->setFixedSize(qMax(0, labelRect.width()), labelRect.height()); QString html = index.model()->data(index, Qt::DisplayRole).toString(); m_pLabel->setText(html); QString checkboxKey = QString("CHECKBOX:%1.%2").arg(selected).arg(checked); paintWidget(painter, checkboxRect, checkboxKey, m_pCheckBox); QString labelKey = QString("LABEL:%1.%2.%3x%4").arg(selected).arg(html).arg(labelRect.width()).arg(labelRect.height()); //paintWidget(painter, labelRect, labelKey, m_pLabel); //1、获取文件夹图标 QFileIconProvider icon_provider; QIcon icon = icon_provider.icon(QFileIconProvider::Folder); QPixmap pix = icon.pixmap(QSize(20, 20));//QIcon转QPixmap //qDebug() << "labelRect============" << labelRect; // 2、获取指定文件图标 // QFileInfo file_info(name); // QFileIconProvider icon_provider; // QIcon icon = icon_provider.icon(file_info); QRect iconRect(option.rect.x() + m_pCheckBox->width(), option.rect.y() + 5, 20, 20); painter->drawPixmap(iconRect, pix); } else { QStyledItemDelegate::paint(painter, option, index); } } void CheckBoxDelegate::paintWidget(QPainter *painter, const QRect &rect, const QString &cacheKey, QWidget *widget) const { QPixmap pixmap(widget->size()); #if QT_VERSION >= 0x040600 if (!QPixmapCache::find(cacheKey, &pixmap)) { #else if (!QPixmapCache::find(cacheKey, pixmap)) { #endif widget->render(&pixmap); QPixmapCache::insert(cacheKey, pixmap); } painter->drawPixmap(rect, pixmap); } // bool CheckBoxDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index) { qDebug() << "CheckBoxDelegate::editorEvent=====data================" << index.column(); QRect decorationRect = option.rect; QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event); if(event->type() == QEvent::MouseButtonPress && decorationRect.contains(mouseEvent->pos())) { if(index.column() == CHECK_BOX_COLUMN) { int data = model->data(index, Qt::CheckStateRole).toInt(); qDebug() << "data================" << data; if(data == 0) data = 2; else data = 0; model->setData(index, data, Qt::CheckStateRole); } } return QStyledItemDelegate::editorEvent(event, model, option, index); } /* QWidget *CheckBoxDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const { qDebug() << "index.column===============" << index.column(); if(index.column() == 0) { QCheckBox *checkbox = new QCheckBox(parent); return checkbox; } else { return QStyledItemDelegate::createEditor(parent, option, index); } } void CheckBoxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const { if(index.column() == 0) { bool check = index.model()->data(index, Qt::UserRole).toBool(); qDebug() << "check ============ " << check; QCheckBox *checkbox = qobject_cast<QCheckBox *>(editor); checkbox->setChecked(check); } } void CheckBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const { if (index.column() == 0) { QCheckBox *checkbox = qobject_cast<QCheckBox *>(editor); bool check = checkbox->isChecked(); model->setData(index, check, Qt::UserRole); } } void CheckBoxDelegate::