/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the Technology Preview License Agreement accompanying ** this package. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain additional ** rights. These rights are described in the Nokia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qtablewidget.h" #ifndef QT_NO_TABLEWIDGET #include #include #include QT_BEGIN_NAMESPACE QTableModel::QTableModel(int rows, int columns, QTableWidget *parent) : QAbstractTableModel(parent), prototype(0), tableItems(rows * columns, 0), verticalHeaderItems(rows, 0), horizontalHeaderItems(columns, 0) {} QTableModel::~QTableModel() { clear(); delete prototype; } bool QTableModel::insertRows(int row, int count, const QModelIndex &) { if (count < 1 || row < 0 || row > verticalHeaderItems.count()) return false; beginInsertRows(QModelIndex(), row, row + count - 1); int rc = verticalHeaderItems.count(); int cc = horizontalHeaderItems.count(); verticalHeaderItems.insert(row, count, 0); if (rc == 0) tableItems.resize(cc * count); else tableItems.insert(tableIndex(row, 0), cc * count, 0); endInsertRows(); return true; } bool QTableModel::insertColumns(int column, int count, const QModelIndex &) { if (count < 1 || column < 0 || column > horizontalHeaderItems.count()) return false; beginInsertColumns(QModelIndex(), column, column + count - 1); int rc = verticalHeaderItems.count(); int cc = horizontalHeaderItems.count(); horizontalHeaderItems.insert(column, count, 0); if (cc == 0) tableItems.resize(rc * count); else for (int row = 0; row < rc; ++row) tableItems.insert(tableIndex(row, column), count, 0); endInsertColumns(); return true; } bool QTableModel::removeRows(int row, int count, const QModelIndex &) { if (count < 1 || row < 0 || row + count > verticalHeaderItems.count()) return false; beginRemoveRows(QModelIndex(), row, row + count - 1); int i = tableIndex(row, 0); int n = count * columnCount(); QTableWidgetItem *oldItem = 0; for (int j = i; j < n + i; ++j) { oldItem = tableItems.at(j); if (oldItem) oldItem->view = 0; delete oldItem; } tableItems.remove(qMax(i, 0), n); for (int v = row; v < row + count; ++v) { oldItem = verticalHeaderItems.at(v); if (oldItem) oldItem->view = 0; delete oldItem; } verticalHeaderItems.remove(row, count); endRemoveRows(); return true; } bool QTableModel::removeColumns(int column, int count, const QModelIndex &) { if (count < 1 || column < 0 || column + count > horizontalHeaderItems.count()) return false; beginRemoveColumns(QModelIndex(), column, column + count - 1); QTableWidgetItem *oldItem = 0; for (int row = rowCount() - 1; row >= 0; --row) { int i = tableIndex(row, column); for (int j = i; j < i + count; ++j) { oldItem = tableItems.at(j); if (oldItem) oldItem->view = 0; delete oldItem; } tableItems.remove(i, count); } for (int h=column; hview = 0; delete oldItem; } horizontalHeaderItems.remove(column, count); endRemoveColumns(); return true; } void QTableModel::setItem(int row, int column, QTableWidgetItem *item) { int i = tableIndex(row, column); if (i < 0 || i >= tableItems.count()) return; QTableWidgetItem *oldItem = tableItems.at(i); if (item == oldItem) return; // remove old if (oldItem) oldItem->view = 0; delete tableItems.at(i); QTableWidget *view = qobject_cast(QObject::parent()); // set new if (item) item->d->id = i; tableItems[i] = item; if (view && view->isSortingEnabled() && view->horizontalHeader()->sortIndicatorSection() == column) { // sorted insertion Qt::SortOrder order = view->horizontalHeader()->sortIndicatorOrder(); QVector colItems = columnItems(column); if (row < colItems.count()) colItems.remove(row); int sortedRow; if (item == 0) { // move to after all non-0 (sortable) items sortedRow = colItems.count(); } else { QVector::iterator it; it = sortedInsertionIterator(colItems.begin(), colItems.end(), order, item); sortedRow = qMax((int)(it - colItems.begin()), 0); } if (sortedRow != row) { emit layoutAboutToBeChanged(); // move the items @ row to sortedRow int cc = columnCount(); QVector rowItems(cc); for (int j = 0; j < cc; ++j) rowItems[j] = tableItems.at(tableIndex(row, j)); tableItems.remove(tableIndex(row, 0), cc); tableItems.insert(tableIndex(sortedRow, 0), cc, 0); for (int j = 0; j < cc; ++j) tableItems[tableIndex(sortedRow, j)] = rowItems.at(j); QTableWidgetItem *header = verticalHeaderItems.at(row); verticalHeaderItems.remove(row); verticalHeaderItems.insert(sortedRow, header); // update persistent indexes QModelIndexList oldPersistentIndexes = persistentIndexList(); QModelIndexList newPersistentIndexes = oldPersistentIndexes; updateRowIndexes(newPersistentIndexes, row, sortedRow); changePersistentIndexList(oldPersistentIndexes, newPersistentIndexes); emit layoutChanged(); return; } } QModelIndex idx = QAbstractTableModel::index(row, column); emit dataChanged(idx, idx); } QTableWidgetItem *QTableModel::takeItem(int row, int column) { long i = tableIndex(row, column); QTableWidgetItem *itm = tableItems.value(i); if (itm) { itm->view = 0; itm->d->id = -1; tableItems[i] = 0; } return itm; } QTableWidgetItem *QTableModel::item(int row, int column) const { return tableItems.value(tableIndex(row, column)); } QTableWidgetItem *QTableModel::item(const QModelIndex &index) const { if (!isValid(index)) return 0; return tableItems.at(tableIndex(index.row(), index.column())); } void QTableModel::removeItem(QTableWidgetItem *item) { int i = tableItems.indexOf(item); if (i != -1) { tableItems[i] = 0; QModelIndex idx = index(item); emit dataChanged(idx, idx); return; } i = verticalHeaderItems.indexOf(item); if (i != -1) { verticalHeaderItems[i] = 0; emit headerDataChanged(Qt::Vertical, i, i); return; } i = horizontalHeaderItems.indexOf(item); if (i != -1) { horizontalHeaderItems[i] = 0; emit headerDataChanged(Qt::Horizontal, i, i); return; } } void QTableModel::setHorizontalHeaderItem(int section, QTableWidgetItem *item) { if (section < 0 || section >= horizontalHeaderItems.count()) return; QTableWidgetItem *oldItem = horizontalHeaderItems.at(section); if (item == oldItem) return; if (oldItem) oldItem->view = 0; delete oldItem; QTableWidget *view = qobject_cast(QObject::parent()); if (item) { item->view = view; item->itemFlags = Qt::ItemFlags(int(item->itemFlags)|ItemIsHeaderItem); } horizontalHeaderItems[section] = item; emit headerDataChanged(Qt::Horizontal, section, section); } void QTableModel::setVerticalHeaderItem(int section, QTableWidgetItem *item) { if (section < 0 || section >= verticalHeaderItems.count()) return; QTableWidgetItem *oldItem = verticalHeaderItems.at(section); if (item == oldItem) return; if (oldItem) oldItem->view = 0; delete oldItem; QTableWidget *view = qobject_cast(QObject::parent()); if (item) { item->view = view; item->itemFlags = Qt::ItemFlags(int(item->itemFlags)|ItemIsHeaderItem); } verticalHeaderItems[section] = item; emit headerDataChanged(Qt::Vertical, section, section); } QTableWidgetItem *QTableModel::takeHorizontalHeaderItem(int section) { if (section < 0 || section >= horizontalHeaderItems.count()) return 0; QTableWidgetItem *itm = horizontalHeaderItems.at(section); if (itm) { itm->view = 0; itm->itemFlags &= ~ItemIsHeaderItem; horizontalHeaderItems[section] = 0; } return itm; } QTableWidgetItem *QTableModel::takeVerticalHeaderItem(int section) { if (section < 0 || section >= verticalHeaderItems.count()) return 0; QTableWidgetItem *itm = verticalHeaderItems.at(section); if (itm) { itm->view = 0; itm->itemFlags &= ~ItemIsHeaderItem; verticalHeaderItems[section] = 0; } return itm; } QTableWidgetItem *QTableModel::horizontalHeaderItem(int section) { return horizontalHeaderItems.value(section); } QTableWidgetItem *QTableModel::verticalHeaderItem(int section) { return verticalHeaderItems.value(section); } QModelIndex QTableModel::index(const QTableWidgetItem *item) const { if (!item) return QModelIndex(); int i = -1; const int id = item->d->id; if (id >= 0 && id < tableItems.count() && tableItems.at(id) == item) { i = id; } else { // we need to search for the item i = tableItems.indexOf(const_cast(item)); if (i == -1) // not found return QModelIndex(); } int row = i / columnCount(); int col = i % columnCount(); return QAbstractTableModel::index(row, col); } void QTableModel::setRowCount(int rows) { int rc = verticalHeaderItems.count(); if (rows < 0 || rc == rows) return; if (rc < rows) insertRows(qMax(rc, 0), rows - rc); else removeRows(qMax(rows, 0), rc - rows); } void QTableModel::setColumnCount(int columns) { int cc = horizontalHeaderItems.count(); if (columns < 0 || cc == columns) return; if (cc < columns) insertColumns(qMax(cc, 0), columns - cc); else removeColumns(qMax(columns, 0), cc - columns); } int QTableModel::rowCount(const QModelIndex &parent) const { return parent.isValid() ? 0 : verticalHeaderItems.count(); } int QTableModel::columnCount(const QModelIndex &parent) const { return parent.isValid() ? 0 : horizontalHeaderItems.count(); } QVariant QTableModel::data(const QModelIndex &index, int role) const { QTableWidgetItem *itm = item(index); if (itm) return itm->data(role); return QVariant(); } bool QTableModel::setData(const QModelIndex &index, const QVariant &value, int role) { if (!index.isValid()) return false; QTableWidgetItem *itm = item(index); if (itm) { itm->setData(role, value); return true; } // don't create dummy table items for empty values if (!value.isValid()) return false; QTableWidget *view = qobject_cast(QObject::parent()); if (!view) return false; itm = createItem(); itm->setData(role, value); view->setItem(index.row(), index.column(), itm); return true; } QMap QTableModel::itemData(const QModelIndex &index) const { QMap roles; QTableWidgetItem *itm = item(index); if (itm) { for (int i = 0; i < itm->values.count(); ++i) { roles.insert(itm->values.at(i).role, itm->values.at(i).value); } } return roles; } // reimplemented to ensure that only one dataChanged() signal is emitted bool QTableModel::setItemData(const QModelIndex &index, const QMap &roles) { if (!index.isValid()) return false; QTableWidget *view = qobject_cast(QObject::parent()); QTableWidgetItem *itm = item(index); if (itm) { itm->view = 0; // prohibits item from calling itemChanged() bool changed = false; for (QMap::ConstIterator it = roles.constBegin(); it != roles.constEnd(); ++it) { if (itm->data(it.key()) != it.value()) { itm->setData(it.key(), it.value()); changed = true; } } itm->view = view; if (changed) itemChanged(itm); return true; } if (!view) return false; itm = createItem(); for (QMap::ConstIterator it = roles.constBegin(); it != roles.constEnd(); ++it) itm->setData(it.key(), it.value()); view->setItem(index.row(), index.column(), itm); return true; } Qt::ItemFlags QTableModel::flags(const QModelIndex &index) const { if (!index.isValid()) return Qt::ItemIsDropEnabled; if (QTableWidgetItem *itm = item(index)) return itm->flags(); return (Qt::ItemIsEditable |Qt::ItemIsSelectable |Qt::ItemIsUserCheckable |Qt::ItemIsEnabled |Qt::ItemIsDragEnabled |Qt::ItemIsDropEnabled); } void QTableModel::sort(int column, Qt::SortOrder order) { QVector > sortable; QVector unsortable; sortable.reserve(rowCount()); unsortable.reserve(rowCount()); for (int row = 0; row < rowCount(); ++row) { if (QTableWidgetItem *itm = item(row, column)) sortable.append(QPair(itm, row)); else unsortable.append(row); } LessThan compare = (order == Qt::AscendingOrder ? &itemLessThan : &itemGreaterThan); qStableSort(sortable.begin(), sortable.end(), compare); QVector sorted_table(tableItems.count()); QModelIndexList from; QModelIndexList to; for (int i = 0; i < rowCount(); ++i) { int r = (i < sortable.count() ? sortable.at(i).second : unsortable.at(i - sortable.count())); for (int c = 0; c < columnCount(); ++c) { sorted_table[tableIndex(i, c)] = item(r, c); from.append(createIndex(r, c, 0)); to.append(createIndex(i, c, 0)); } } emit layoutAboutToBeChanged(); tableItems = sorted_table; changePersistentIndexList(from, to); // ### slow emit layoutChanged(); } bool QTableModel::canConvertToDouble(const QVariant &value) { switch (value.type()) { case QVariant::Bool: case QVariant::Int: case QVariant::UInt: case QVariant::LongLong: case QVariant::ULongLong: case QVariant::Double: case QVariant::Char: return true; default: return false; } return false; } /* \internal Ensures that rows in the interval [start, end] are sorted according to the contents of column \a column and the given sort \a order. */ void QTableModel::ensureSorted(int column, Qt::SortOrder order, int start, int end) { int count = end - start + 1; QVector < QPair > sorting; sorting.reserve(count); for (int row = start; row <= end; ++row) { QTableWidgetItem *itm = item(row, column); if (itm == 0) { // no more sortable items (all 0-items are // at the end of the table when it is sorted) break; } sorting.append(QPair(itm, row)); } LessThan compare = (order == Qt::AscendingOrder ? &itemLessThan : &itemGreaterThan); qStableSort(sorting.begin(), sorting.end(), compare); QModelIndexList oldPersistentIndexes = persistentIndexList(); QModelIndexList newPersistentIndexes = oldPersistentIndexes; QVector newTable = tableItems; QVector newVertical = verticalHeaderItems; QVector colItems = columnItems(column); QVector::iterator vit = colItems.begin(); bool changed = false; for (int i = 0; i < sorting.count(); ++i) { int oldRow = sorting.at(i).second; QTableWidgetItem *item = colItems.at(oldRow); colItems.remove(oldRow); vit = sortedInsertionIterator(vit, colItems.end(), order, item); int newRow = qMax((int)(vit - colItems.begin()), 0); vit = colItems.insert(vit, item); if (newRow != oldRow) { changed = true; // move the items @ oldRow to newRow int cc = columnCount(); QVector rowItems(cc); for (int j = 0; j < cc; ++j) rowItems[j] = newTable.at(tableIndex(oldRow, j)); newTable.remove(tableIndex(oldRow, 0), cc); newTable.insert(tableIndex(newRow, 0), cc, 0); for (int j = 0; j < cc; ++j) newTable[tableIndex(newRow, j)] = rowItems.at(j); QTableWidgetItem *header = newVertical.at(oldRow); newVertical.remove(oldRow); newVertical.insert(newRow, header); // update persistent indexes updateRowIndexes(newPersistentIndexes, oldRow, newRow); // the index of the remaining rows may have changed for (int j = i + 1; j < sorting.count(); ++j) { int otherRow = sorting.at(j).second; if (oldRow < otherRow && newRow >= otherRow) --sorting[j].second; else if (oldRow > otherRow && newRow <= otherRow) ++sorting[j].second; } } } if (changed) { emit layoutAboutToBeChanged(); tableItems = newTable; verticalHeaderItems = newVertical; changePersistentIndexList(oldPersistentIndexes, newPersistentIndexes); emit layoutChanged(); } } /* \internal Returns the non-0 items in column \a column. */ QVector QTableModel::columnItems(int column) const { QVector items; int rc = rowCount(); items.reserve(rc); for (int row = 0; row < rc; ++row) { QTableWidgetItem *itm = item(row, column); if (itm == 0) { // no more sortable items (all 0-items are // at the end of the table when it is sorted) break; } items.append(itm); } return items; } /* \internal Adjusts the row of each index in \a indexes if necessary, given that a row of items has been moved from row \a movedFrom to row \a movedTo. */ void QTableModel::updateRowIndexes(QModelIndexList &indexes, int movedFromRow, int movedToRow) { QModelIndexList::iterator it; for (it = indexes.begin(); it != indexes.end(); ++it) { int oldRow = (*it).row(); int newRow = oldRow; if (oldRow == movedFromRow) newRow = movedToRow; else if (movedFromRow < oldRow && movedToRow >= oldRow) newRow = oldRow - 1; else if (movedFromRow > oldRow && movedToRow <= oldRow) newRow = oldRow + 1; if (newRow != oldRow) *it = index(newRow, (*it).column(), (*it).parent()); } } /* \internal Returns an iterator to the item where \a item should be inserted in the interval (\a begin, \a end) according to the given sort \a order. */ QVector::iterator QTableModel::sortedInsertionIterator( const QVector::iterator &begin, const QVector::iterator &end, Qt::SortOrder order, QTableWidgetItem *item) { if (order == Qt::AscendingOrder) return qLowerBound(begin, end, item, QTableModelLessThan()); return qLowerBound(begin, end, item, QTableModelGreaterThan()); } bool QTableModel::itemLessThan(const QPair &left, const QPair &right) { return *(left.first) < *(right.first); } bool QTableModel::itemGreaterThan(const QPair &left, const QPair &right) { return (*(right.first) < *(left .first)); } QVariant QTableModel::headerData(int section, Qt::Orientation orientation, int role) const { if (section < 0) return QVariant(); QTableWidgetItem *itm = 0; if (orientation == Qt::Horizontal && section < horizontalHeaderItems.count()) itm = horizontalHeaderItems.at(section); else if (orientation == Qt::Vertical && section < verticalHeaderItems.count()) itm = verticalHeaderItems.at(section); else return QVariant(); // section is out of bounds if (itm) return itm->data(role); if (role == Qt::DisplayRole) return section + 1; return QVariant(); } bool QTableModel::setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role) { if (section < 0 || (orientation == Qt::Horizontal && horizontalHeaderItems.size() <= section) || (orientation == Qt::Vertical && verticalHeaderItems.size() <= section)) return false; QTableWidgetItem *itm = 0; if (orientation == Qt::Horizontal) itm = horizontalHeaderItems.at(section); else itm = verticalHeaderItems.at(section); if (itm) { itm->setData(role, value); return true; } return false; } bool QTableModel::isValid(const QModelIndex &index) const { return (index.isValid() && index.row() < verticalHeaderItems.count() && index.column() < horizontalHeaderItems.count()); } void QTableModel::clear() { for (int j = 0; j < verticalHeaderItems.count(); ++j) { if (verticalHeaderItems.at(j)) { verticalHeaderItems.at(j)->view = 0; delete verticalHeaderItems.at(j); verticalHeaderItems[j] = 0; } } for (int k = 0; k < horizontalHeaderItems.count(); ++k) { if (horizontalHeaderItems.at(k)) { horizontalHeaderItems.at(k)->view = 0; delete horizontalHeaderItems.at(k); horizontalHeaderItems[k] = 0; } } clearContents(); } void QTableModel::clearContents() { for (int i = 0; i < tableItems.count(); ++i) { if (tableItems.at(i)) { tableItems.at(i)->view = 0; delete tableItems.at(i); tableItems[i] = 0; } } reset(); } void QTableModel::itemChanged(QTableWidgetItem *item) { if (!item) return; if (item->flags() & ItemIsHeaderItem) { int row = verticalHeaderItems.indexOf(item); if (row >= 0) { emit headerDataChanged(Qt::Vertical, row, row); } else { int column = horizontalHeaderItems.indexOf(item); if (column >= 0) emit headerDataChanged(Qt::Horizontal, column, column); } } else { QModelIndex idx = index(item); if (idx.isValid()) emit dataChanged(idx, idx); } } QTableWidgetItem* QTableModel::createItem() const { return prototype ? prototype->clone() : new QTableWidgetItem; } const QTableWidgetItem *QTableModel::itemPrototype() const { return prototype; } void QTableModel::setItemPrototype(const QTableWidgetItem *item) { if (prototype != item) { delete prototype; prototype = item; } } QStringList QTableModel::mimeTypes() const { const QTableWidget *view = qobject_cast(QObject::parent()); return (view ? view->mimeTypes() : QStringList()); } QMimeData *QTableModel::internalMimeData() const { return QAbstractTableModel::mimeData(cachedIndexes); } QMimeData *QTableModel::mimeData(const QModelIndexList &indexes) const { QList items; for (int i = 0; i < indexes.count(); ++i) items << item(indexes.at(i)); const QTableWidget *view = qobject_cast(QObject::parent()); // cachedIndexes is a little hack to avoid copying from QModelIndexList to // QList and back again in the view cachedIndexes = indexes; QMimeData *mimeData = (view ? view->mimeData(items) : 0); cachedIndexes.clear(); return mimeData; } bool QTableModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row , int column, const QModelIndex &index) { if (index.isValid()) { row = index.row(); column = index.column(); }else if (row == -1 || column == -1) { // The user dropped outside the table. row = rowCount(); column = 0; } QTableWidget *view = qobject_cast(QObject::parent()); return (view ? view->dropMimeData(row, column, data, action) : false); } Qt::DropActions QTableModel::supportedDropActions() const { const QTableWidget *view = qobject_cast(QObject::parent()); return (view ? view->supportedDropActions() : Qt::DropActions(Qt::IgnoreAction)); } /*! \class QTableWidgetSelectionRange \brief The QTableWidgetSelectionRange class provides a way to interact with selection in a model without using model indexes and a selection model. \ingroup model-view The QTableWidgetSelectionRange class stores the top left and bottom right rows and columns of a selection range in a table. The selections in the table may consist of several selection ranges. \note If the item within the selection range is marked as not selectable, e.g., \c{itemFlags() & Qt::ItemIsSelectable == 0} then it will not appear in the selection range. \sa QTableWidget */ /*! Constructs an table selection range, i.e. a range whose rowCount() and columnCount() are 0. */ QTableWidgetSelectionRange::QTableWidgetSelectionRange() : top(-1), left(-1), bottom(-2), right(-2) { } /*! Constructs the table selection range from the given \a top, \a left, \a bottom and \a right table rows and columns. \sa topRow(), leftColumn(), bottomRow(), rightColumn() */ QTableWidgetSelectionRange::QTableWidgetSelectionRange(int top, int left, int bottom, int right) : top(top), left(left), bottom(bottom), right(right) { } /*! Constructs a the table selection range by copying the given \a other table selection range. */ QTableWidgetSelectionRange::QTableWidgetSelectionRange(const QTableWidgetSelectionRange &other) : top(other.top), left(other.left), bottom(other.bottom), right(other.right) { } /*! Destroys the table selection range. */ QTableWidgetSelectionRange::~QTableWidgetSelectionRange() { } /*! \fn int QTableWidgetSelectionRange::topRow() const Returns the top row of the range. \sa bottomRow(), leftColumn(), rowCount() */ /*! \fn int QTableWidgetSelectionRange::bottomRow() const Returns the bottom row of the range. \sa topRow(), rightColumn(), rowCount() */ /*! \fn int QTableWidgetSelectionRange::leftColumn() const Returns the left column of the range. \sa rightColumn(), topRow(), columnCount() */ /*! \fn int QTableWidgetSelectionRange::rightColumn() const Returns the right column of the range. \sa leftColumn(), bottomRow(), columnCount() */ /*! \since 4.1 \fn int QTableWidgetSelectionRange::rowCount() const Returns the number of rows in the range. This is equivalent to bottomRow() - topRow() + 1. \sa columnCount(), topRow(), bottomRow() */ /*! \since 4.1 \fn int QTableWidgetSelectionRange::columnCount() const Returns the number of columns in the range. This is equivalent to rightColumn() - leftColumn() + 1. \sa rowCount(), leftColumn(), rightColumn() */ /*! \class QTableWidgetItem \brief The QTableWidgetItem class provides an item for use with the QTableWidget class. \ingroup model-view Table items are used to hold pieces of information for table widgets. Items usually contain text, icons, or checkboxes The QTableWidgetItem class is a convenience class that replaces the \c QTableItem class in Qt 3. It provides an item for use with the QTableWidget class. Top-level items are constructed without a parent then inserted at the position specified by a pair of row and column numbers: \snippet doc/src/snippets/qtablewidget-using/mainwindow.cpp 3 Each item can have its own background brush which is set with the setBackground() function. The current background brush can be found with background(). The text label for each item can be rendered with its own font and brush. These are specified with the setFont() and setForeground() functions, and read with font() and foreground(). By default, items are enabled, editable, selectable, checkable, and can be used both as the source of a drag and drop operation and as a drop target. Each item's flags can be changed by calling setFlags() with the appropriate value (see \l{Qt::ItemFlags}). Checkable items can be checked and unchecked with the setCheckState() function. The corresponding checkState() function indicates whether the item is currently checked. \section1 Subclassing When subclassing QTableWidgetItem to provide custom items, it is possible to define new types for them so that they can be distinguished from standard items. The constructors for subclasses that require this feature need to call the base class constructor with a new type value equal to or greater than \l UserType. \sa QTableWidget, {Model/View Programming}, QListWidgetItem, QTreeWidgetItem */ /*! \fn int QTableWidgetItem::row() const \since 4.2 Returns the row of the item in the table. If the item is not in a table, this function will return -1. \sa column() */ /*! \fn int QTableWidgetItem::column() const \since 4.2 Returns the column of the item in the table. If the item is not in a table, this function will return -1. \sa row() */ /*! \fn void QTableWidgetItem::setSelected(bool select) \since 4.2 Sets the selected state of the item to \a select. \sa isSelected() */ /*! \fn bool QTableWidgetItem::isSelected() const \since 4.2 Returns true if the item is selected, otherwise returns false. \sa setSelected() */ /*! \fn QSize QTableWidgetItem::sizeHint() const \since 4.1 Returns the size hint set for the table item. */ /*! \fn void QTableWidgetItem::setSizeHint(const QSize &size) \since 4.1 Sets the size hint for the table item to be \a size. If no size hint is set, the item delegate will compute the size hint based on the item data. */ /*! \fn Qt::CheckState QTableWidgetItem::checkState() const Returns the checked state of the table item. \sa flags() */ /*! \fn void QTableWidgetItem::setCheckState(Qt::CheckState state) Sets the check state of the table item to be \a state. */ /*! \fn QTableWidget *QTableWidgetItem::tableWidget() const Returns the table widget that contains the item. */ /*! \fn Qt::ItemFlags QTableWidgetItem::flags() const Returns the flags used to describe the item. These determine whether the item can be checked, edited, and selected. \sa setFlags() */ /*! \fn void QTableWidgetItem::setFlags(Qt::ItemFlags flags) Sets the flags for the item to the given \a flags. These determine whether the item can be selected or modified. \sa flags() */ void QTableWidgetItem::setFlags(Qt::ItemFlags aflags) { itemFlags = aflags; if (QTableModel *model = (view ? qobject_cast(view->model()) : 0)) model->itemChanged(this); } /*! \fn QString QTableWidgetItem::text() const Returns the item's text. \sa setText() */ /*! \fn void QTableWidgetItem::setText(const QString &text) Sets the item's text to the \a text specified. \sa text() setFont() setForeground() */ /*! \fn QIcon QTableWidgetItem::icon() const Returns the item's icon. \sa setIcon(), {QAbstractItemView::iconSize}{iconSize} */ /*! \fn void QTableWidgetItem::setIcon(const QIcon &icon) Sets the item's icon to the \a icon specified. \sa icon(), setText(), {QAbstractItemView::iconSize}{iconSize} */ /*! \fn QString QTableWidgetItem::statusTip() const Returns the item's status tip. \sa setStatusTip() */ /*! \fn void QTableWidgetItem::setStatusTip(const QString &statusTip) Sets the status tip for the table item to the text specified by \a statusTip. QTableWidget mouse tracking needs to be enabled for this feature to work. \sa statusTip() setToolTip() setWhatsThis() */ /*! \fn QString QTableWidgetItem::toolTip() const Returns the item's tooltip. \sa setToolTip() */ /*! \fn void QTableWidgetItem::setToolTip(const QString &toolTip) Sets the item's tooltip to the string specified by \a toolTip. \sa toolTip() setStatusTip() setWhatsThis() */ /*! \fn QString QTableWidgetItem::whatsThis() const Returns the item's "What's This?" help. \sa setWhatsThis() */ /*! \fn void QTableWidgetItem::setWhatsThis(const QString &whatsThis) Sets the item's "What's This?" help to the string specified by \a whatsThis. \sa whatsThis() setStatusTip() setToolTip() */ /*! \fn QFont QTableWidgetItem::font() const Returns the font used to render the item's text. \sa setFont() */ /*! \fn void QTableWidgetItem::setFont(const QFont &font) Sets the font used to display the item's text to the given \a font. \sa font() setText() setForeground() */ /*! \fn QColor QTableWidgetItem::backgroundColor() const \obsolete This function is deprecated. Use background() instead. */ /*! \fn void QTableWidgetItem::setBackgroundColor(const QColor &color) \obsolete This function is deprecated. Use setBackground() instead. */ /*! \fn QBrush QTableWidgetItem::background() const \since 4.2 Returns the brush used to render the item's background. \sa foreground() */ /*! \fn void QTableWidgetItem::setBackground(const QBrush &brush) \since 4.2 Sets the item's background brush to the specified \a brush. \sa setForeground() */ /*! \fn QColor QTableWidgetItem::textColor() const \obsolete This function is deprecated. Use foreground() instead. */ /*! \fn void QTableWidgetItem::setTextColor(const QColor &color) \obsolete This function is deprecated. Use setForeground() instead. */ /*! \fn QBrush QTableWidgetItem::foreground() const \since 4.2 Returns the brush used to render the item's foreground (e.g. text). \sa background() */ /*! \fn void QTableWidgetItem::setForeground(const QBrush &brush) \since 4.2 Sets the item's foreground brush to the specified \a brush. \sa setBackground() */ /*! \fn int QTableWidgetItem::textAlignment() const Returns the text alignment for the item's text. \sa Qt::Alignment */ /*! \fn void QTableWidgetItem::setTextAlignment(int alignment) Sets the text alignment for the item's text to the \a alignment specified. \sa Qt::Alignment */ /*! Constructs a table item of the specified \a type that does not belong to any table. \sa type() */ QTableWidgetItem::QTableWidgetItem(int type) : rtti(type), view(0), d(new QTableWidgetItemPrivate(this)), itemFlags(Qt::ItemIsEditable |Qt::ItemIsSelectable |Qt::ItemIsUserCheckable |Qt::ItemIsEnabled |Qt::ItemIsDragEnabled |Qt::ItemIsDropEnabled) { } /*! Constructs a table item with the given \a text. \sa type() */ QTableWidgetItem::QTableWidgetItem(const QString &text, int type) : rtti(type), view(0), d(new QTableWidgetItemPrivate(this)), itemFlags(Qt::ItemIsEditable |Qt::ItemIsSelectable |Qt::ItemIsUserCheckable |Qt::ItemIsEnabled |Qt::ItemIsDragEnabled |Qt::ItemIsDropEnabled) { setData(Qt::DisplayRole, text); } /*! Constructs a table item with the given \a icon and \a text. \sa type() */ QTableWidgetItem::QTableWidgetItem(const QIcon &icon, const QString &text, int type) : rtti(type), view(0), d(new QTableWidgetItemPrivate(this)), itemFlags(Qt::ItemIsEditable |Qt::ItemIsSelectable |Qt::ItemIsUserCheckable |Qt::ItemIsEnabled |Qt::ItemIsDragEnabled |Qt::ItemIsDropEnabled) { setData(Qt::DecorationRole, icon); setData(Qt::DisplayRole, text); } /*! Destroys the table item. */ QTableWidgetItem::~QTableWidgetItem() { if (QTableModel *model = (view ? qobject_cast(view->model()) : 0)) model->removeItem(this); view = 0; delete d; } /*! Creates a copy of the item. */ QTableWidgetItem *QTableWidgetItem::clone() const { return new QTableWidgetItem(*this); } /*! Sets the item's data for the given \a role to the specified \a value. \sa Qt::ItemDataRole, data() */ void QTableWidgetItem::setData(int role, const QVariant &value) { bool found = false; role = (role == Qt::EditRole ? Qt::DisplayRole : role); for (int i = 0; i < values.count(); ++i) { if (values.at(i).role == role) { if (values[i].value == value) return; values[i].value = value; found = true; break; } } if (!found) values.append(QWidgetItemData(role, value)); if (QTableModel *model = (view ? qobject_cast(view->model()) : 0)) model->itemChanged(this); } /*! Returns the item's data for the given \a role. */ QVariant QTableWidgetItem::data(int role) const { role = (role == Qt::EditRole ? Qt::DisplayRole : role); for (int i = 0; i < values.count(); ++i) if (values.at(i).role == role) return values.at(i).value; return QVariant(); } /*! Returns true if the item is less than the \a other item; otherwise returns false. */ bool QTableWidgetItem::operator<(const QTableWidgetItem &other) const { const QVariant v1 = data(Qt::DisplayRole), v2 = other.data(Qt::DisplayRole); if (QTableModel::canConvertToDouble(v1) && QTableModel::canConvertToDouble(v2)) return v1.toDouble() < v2.toDouble(); return v1.toString() < v2.toString(); } #ifndef QT_NO_DATASTREAM /*! Reads the item from stream \a in. \sa write() */ void QTableWidgetItem::read(QDataStream &in) { in >> values; } /*! Writes the item to stream \a out. \sa read() */ void QTableWidgetItem::write(QDataStream &out) const { out << values; } /*! \relates QTableWidgetItem Reads a table widget item from stream \a in into \a item. This operator uses QTableWidgetItem::read(). \sa {Format of the QDataStream Operators} */ QDataStream &operator>>(QDataStream &in, QTableWidgetItem &item) { item.read(in); return in; } /*! \relates QTableWidgetItem Writes the table widget item \a item to stream \a out. This operator uses QTableWidgetItem::write(). \sa {Format of the QDataStream Operators} */ QDataStream &operator<<(QDataStream &out, const QTableWidgetItem &item) { item.write(out); return out; } #endif // QT_NO_DATASTREAM /*! \since 4.1 Constructs a copy of \a other. Note that type() and tableWidget() are not copied. This function is useful when reimplementing clone(). \sa data(), flags() */ QTableWidgetItem::QTableWidgetItem(const QTableWidgetItem &other) : rtti(Type), values(other.values), view(0), d(new QTableWidgetItemPrivate(this)), itemFlags(other.itemFlags) { } /*! Assigns \a other's data and flags to this item. Note that type() and tableWidget() are not copied. This function is useful when reimplementing clone(). \sa data(), flags() */ QTableWidgetItem &QTableWidgetItem::operator=(const QTableWidgetItem &other) { values = other.values; itemFlags = other.itemFlags; return *this; } /*! \class QTableWidget \brief The QTableWidget class provides an item-based table view with a default model. \ingroup model-view \mainclass Table widgets provide standard table display facilities for applications. The items in a QTableWidget are provided by QTableWidgetItem. If you want a table that uses your own data model you should use QTableView rather than this class. Table widgets can be constructed with the required numbers of rows and columns: \snippet doc/src/snippets/qtablewidget-using/mainwindow.cpp 0 Alternatively, tables can be constructed without a given size and resized later: \snippet doc/src/snippets/qtablewidget-resizing/mainwindow.cpp 0 \snippet doc/src/snippets/qtablewidget-resizing/mainwindow.cpp 1 Items are created ouside the table (with no parent widget) and inserted into the table with setItem(): \snippet doc/src/snippets/qtablewidget-resizing/mainwindow.cpp 2 If you want to enable sorting in your table widget, do so after you have populated it with items, otherwise sorting may interfere with the insertion order (see setItem() for details). Tables can be given both horizontal and vertical headers. The simplest way to create the headers is to supply a list of strings to the setHorizontalHeaderLabels() and setVerticalHeaderLabels() functions. These will provide simple textual headers for the table's columns and rows. More sophisticated headers can be created from existing table items that are usually constructed outside the table. For example, we can construct a table item with an icon and aligned text, and use it as the header for a particular column: \snippet doc/src/snippets/qtablewidget-using/mainwindow.cpp 2 The number of rows in the table can be found with rowCount(), and the number of columns with columnCount(). The table can be cleared with the clear() function. \table 100% \row \o \inlineimage windowsxp-tableview.png Screenshot of a Windows XP style table widget \o \inlineimage macintosh-tableview.png Screenshot of a Macintosh style table widget \o \inlineimage plastique-tableview.png Screenshot of a Plastique style table widget \row \o A \l{Windows XP Style Widget Gallery}{Windows XP style} table widget. \o A \l{Macintosh Style Widget Gallery}{Macintosh style} table widget. \o A \l{Plastique Style Widget Gallery}{Plastique style} table widget. \endtable \sa QTableWidgetItem, QTableView, {Model/View Programming} */ /*! \property QTableWidget::rowCount \brief the number of rows in the table By default, for a table constructed without row and column counts, this property contains a value of 0. */ /*! \property QTableWidget::columnCount \brief the number of columns in the table By default, for a table constructed without row and column counts, this property contains a value of 0. */ void QTableWidgetPrivate::setup() { Q_Q(QTableWidget); // view signals QObject::connect(q, SIGNAL(pressed(QModelIndex)), q, SLOT(_q_emitItemPressed(QModelIndex))); QObject::connect(q, SIGNAL(clicked(QModelIndex)), q, SLOT(_q_emitItemClicked(QModelIndex))); QObject::connect(q, SIGNAL(doubleClicked(QModelIndex)), q, SLOT(_q_emitItemDoubleClicked(QModelIndex))); QObject::connect(q, SIGNAL(activated(QModelIndex)), q, SLOT(_q_emitItemActivated(QModelIndex))); QObject::connect(q, SIGNAL(entered(QModelIndex)), q, SLOT(_q_emitItemEntered(QModelIndex))); // model signals QObject::connect(model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)), q, SLOT(_q_emitItemChanged(QModelIndex))); // selection signals QObject::connect(q->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), q, SLOT(_q_emitCurrentItemChanged(QModelIndex,QModelIndex))); QObject::connect(q->selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), q, SIGNAL(itemSelectionChanged())); // sorting QObject::connect(model(), SIGNAL(dataChanged(QModelIndex,QModelIndex)), q, SLOT(_q_dataChanged(QModelIndex,QModelIndex))); QObject::connect(model(), SIGNAL(columnsRemoved(QModelIndex,int,int)), q, SLOT(_q_sort())); } void QTableWidgetPrivate::_q_emitItemPressed(const QModelIndex &index) { Q_Q(QTableWidget); if (QTableWidgetItem *item = model()->item(index)) emit q->itemPressed(item); emit q->cellPressed(index.row(), index.column()); } void QTableWidgetPrivate::_q_emitItemClicked(const QModelIndex &index) { Q_Q(QTableWidget); if (QTableWidgetItem *item = model()->item(index)) emit q->itemClicked(item); emit q->cellClicked(index.row(), index.column()); } void QTableWidgetPrivate::_q_emitItemDoubleClicked(const QModelIndex &index) { Q_Q(QTableWidget); if (QTableWidgetItem *item = model()->item(index)) emit q->itemDoubleClicked(item); emit q->cellDoubleClicked(index.row(), index.column()); } void QTableWidgetPrivate::_q_emitItemActivated(const QModelIndex &index) { Q_Q(QTableWidget); if (QTableWidgetItem *item = model()->item(index)) emit q->itemActivated(item); emit q->cellActivated(index.row(), index.column()); } void QTableWidgetPrivate::_q_emitItemEntered(const QModelIndex &index) { Q_Q(QTableWidget); if (QTableWidgetItem *item = model()->item(index)) emit q->itemEntered(item); emit q->cellEntered(index.row(), index.column()); } void QTableWidgetPrivate::_q_emitItemChanged(const QModelIndex &index) { Q_Q(QTableWidget); if (QTableWidgetItem *item = model()->item(index)) emit q->itemChanged(item); emit q->cellChanged(index.row(), index.column()); } void QTableWidgetPrivate::_q_emitCurrentItemChanged(const QModelIndex ¤t, const QModelIndex &previous) { Q_Q(QTableWidget); QTableWidgetItem *currentItem = model()->item(current); QTableWidgetItem *previousItem = model()->item(previous); if (currentItem || previousItem) emit q->currentItemChanged(currentItem, previousItem); emit q->currentCellChanged(current.row(), current.column(), previous.row(), previous.column()); } void QTableWidgetPrivate::_q_sort() { Q_Q(QTableWidget); if (sortingEnabled) { int column = q->horizontalHeader()->sortIndicatorSection(); Qt::SortOrder order = q->horizontalHeader()->sortIndicatorOrder(); model()->sort(column, order); } } void QTableWidgetPrivate::_q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight) { Q_Q(QTableWidget); if (sortingEnabled && topLeft.isValid() && bottomRight.isValid()) { int column = q->horizontalHeader()->sortIndicatorSection(); if (column >= topLeft.column() && column <= bottomRight.column()) { Qt::SortOrder order = q->horizontalHeader()->sortIndicatorOrder(); model()->ensureSorted(column, order, topLeft.row(), bottomRight.row()); } } } /*! \fn void QTableWidget::itemPressed(QTableWidgetItem *item) This signal is emitted whenever an item in the table is pressed. The \a item specified is the item that was pressed. */ /*! \fn void QTableWidget::itemClicked(QTableWidgetItem *item) This signal is emitted whenever an item in the table is clicked. The \a item specified is the item that was clicked. */ /*! \fn void QTableWidget::itemDoubleClicked(QTableWidgetItem *item) This signal is emitted whenever an item in the table is double clicked. The \a item specified is the item that was double clicked. */ /*! \fn void QTableWidget::itemActivated(QTableWidgetItem *item) This signal is emitted when the specified \a item has been activated */ /*! \fn void QTableWidget::itemEntered(QTableWidgetItem *item) This signal is emitted when the mouse cursor enters an item. The \a item is the item entered. This signal is only emitted when mouseTracking is turned on, or when a mouse button is pressed while moving into an item. */ /*! \fn void QTableWidget::itemChanged(QTableWidgetItem *item) This signal is emitted whenever the data of \a item has changed. */ /*! \fn void QTableWidget::currentItemChanged(QTableWidgetItem *current, QTableWidgetItem *previous) This signal is emitted whenever the current item changes. The \a previous item is the item that previously had the focus, \a current is the new current item. */ /*! \fn void QTableWidget::itemSelectionChanged() This signal is emitted whenever the selection changes. \sa selectedItems() isItemSelected() */ /*! \since 4.1 \fn void QTableWidget::cellPressed(int row, int column) This signal is emitted whenever a cell in the table is pressed. The \a row and \a column specified is the cell that was pressed. */ /*! \since 4.1 \fn void QTableWidget::cellClicked(int row, int column) This signal is emitted whenever a cell in the table is clicked. The \a row and \a column specified is the cell that was clicked. */ /*! \since 4.1 \fn void QTableWidget::cellDoubleClicked(int row, int column) This signal is emitted whenever a cell in the table is double clicked. The \a row and \a column specified is the cell that was double clicked. */ /*! \since 4.1 \fn void QTableWidget::cellActivated(int row, int column) This signal is emitted when the cell specified by \a row and \a column has been activated */ /*! \since 4.1 \fn void QTableWidget::cellEntered(int row, int column) This signal is emitted when the mouse cursor enters a cell. The cell is specified by \a row and \a column. This signal is only emitted when mouseTracking is turned on, or when a mouse button is pressed while moving into an item. */ /*! \since 4.1 \fn void QTableWidget::cellChanged(int row, int column) This signal is emitted whenever the data of the item in the cell specified by \a row and \a column has changed. */ /*! \since 4.1 \fn void QTableWidget::currentCellChanged(int currentRow, int currentColumn, int previousRow, int previousColumn) This signal is emitted whenever the current cell changes. The cell specified by \a previousRow and \a previousColumn is the cell that previously had the focus, the cell specified by \a currentRow and \a currentColumn is the new current cell. */ /*! \since 4.3 \fn void QTableWidget::removeCellWidget(int row, int column) Removes the widget set on the cell indicated by \a row and \a column. */ /*! \fn QTableWidgetItem *QTableWidget::itemAt(int ax, int ay) const Returns the item at the position equivalent to QPoint(\a{ax}, \a{ay}) in the table widget's coordinate system, or returns 0 if the specified point is not covered by an item in the table widget. \sa item() */ /*! \enum QTableWidgetItem::ItemType This enum describes the types that are used to describe table widget items. \value Type The default type for table widget items. \value UserType The minimum value for custom types. Values below UserType are reserved by Qt. You can define new user types in QTableWidgetItem subclasses to ensure that custom items are treated specially. \sa type() */ /*! \fn int QTableWidgetItem::type() const Returns the type passed to the QTableWidgetItem constructor. */ /*! Creates a new table view with the given \a parent. */ QTableWidget::QTableWidget(QWidget *parent) : QTableView(*new QTableWidgetPrivate, parent) { Q_D(QTableWidget); QTableView::setModel(new QTableModel(0, 0, this)); d->setup(); } /*! Creates a new table view with the given \a rows and \a columns, and with the given \a parent. */ QTableWidget::QTableWidget(int rows, int columns, QWidget *parent) : QTableView(*new QTableWidgetPrivate, parent) { Q_D(QTableWidget); QTableView::setModel(new QTableModel(rows, columns, this)); d->setup(); } /*! Destroys this QTableWidget. */ QTableWidget::~QTableWidget() { } /*! Sets the number of rows in this table's model to \a rows. If this is less than rowCount(), the data in the unwanted rows is discarded. \sa setColumnCount() */ void QTableWidget::setRowCount(int rows) { Q_D(QTableWidget); d->model()->setRowCount(rows); } /*! Returns the number of rows. */ int QTableWidget::rowCount() const { Q_D(const QTableWidget); return d->model()->rowCount(); } /*! Sets the number of columns in this table's model to \a columns. If this is less than columnCount(), the data in the unwanted columns is discarded. \sa setRowCount() */ void QTableWidget::setColumnCount(int columns) { Q_D(QTableWidget); d->model()->setColumnCount(columns); } /*! Returns the number of columns. */ int QTableWidget::columnCount() const { Q_D(const QTableWidget); return d->model()->columnCount(); } /*! Returns the row for the \a item. */ int QTableWidget::row(const QTableWidgetItem *item) const { Q_D(const QTableWidget); return d->model()->index(item).row(); } /*! Returns the column for the \a item. */ int QTableWidget::column(const QTableWidgetItem *item) const { Q_D(const QTableWidget); return d->model()->index(item).column(); } /*! Returns the item for the given \a row and \a column if one has been set; otherwise returns 0. \sa setItem() */ QTableWidgetItem *QTableWidget::item(int row, int column) const { Q_D(const QTableWidget); return d->model()->item(row, column); } /*! Sets the item for the given \a row and \a column to \a item. The table takes ownership of the item. Note that if sorting is enabled (see \l{QTableView::sortingEnabled} {sortingEnabled}) and \a column is the current sort column, the \a row will be moved to the sorted position determined by \a item. If you want to set several items of a particular row (say, by calling setItem() in a loop), you may want to turn off sorting before doing so, and turn it back on afterwards; this will allow you to use the same \a row argument for all items in the same row (i.e. setItem() will not move the row). \sa item() takeItem() */ void QTableWidget::setItem(int row, int column, QTableWidgetItem *item) { Q_D(QTableWidget); if (item) { if (item->view != 0) { qWarning("QTableWidget: cannot insert an item that is already owned by another QTableWidget"); } else { item->view = this; d->model()->setItem(row, column, item); } } else { delete takeItem(row, column); } } /*! Removes the item at \a row and \a column from the table without deleting it. */ QTableWidgetItem *QTableWidget::takeItem(int row, int column) { Q_D(QTableWidget); QTableWidgetItem *item = d->model()->takeItem(row, column); if (item) item->view = 0; return item; } /*! Returns the vertical header item for row \a row. */ QTableWidgetItem *QTableWidget::verticalHeaderItem(int row) const { Q_D(const QTableWidget); return d->model()->verticalHeaderItem(row); } /*! Sets the vertical header item for row \a row to \a item. */ void QTableWidget::setVerticalHeaderItem(int row, QTableWidgetItem *item) { Q_D(QTableWidget); if (item) { item->view = this; d->model()->setVerticalHeaderItem(row, item); } else { delete takeVerticalHeaderItem(row); } } /*! \since 4.1 Removes the vertical header item at \a row from the header without deleting it. */ QTableWidgetItem *QTableWidget::takeVerticalHeaderItem(int row) { Q_D(QTableWidget); QTableWidgetItem *itm = d->model()->takeVerticalHeaderItem(row); if (itm) itm->view = 0; return itm; } /*! Returns the horizontal header item for column, \a column, if one has been set; otherwise returns 0. */ QTableWidgetItem *QTableWidget::horizontalHeaderItem(int column) const { Q_D(const QTableWidget); return d->model()->horizontalHeaderItem(column); } /*! Sets the horizontal header item for column \a column to \a item. */ void QTableWidget::setHorizontalHeaderItem(int column, QTableWidgetItem *item) { Q_D(QTableWidget); if (item) { item->view = this; d->model()->setHorizontalHeaderItem(column, item); } else { delete takeHorizontalHeaderItem(column); } } /*! \since 4.1 Removes the horizontal header item at \a column from the header without deleting it. */ QTableWidgetItem *QTableWidget::takeHorizontalHeaderItem(int column) { Q_D(QTableWidget); QTableWidgetItem *itm = d->model()->takeHorizontalHeaderItem(column); if (itm) itm->view = 0; return itm; } /*! Sets the vertical header labels using \a labels. */ void QTableWidget::setVerticalHeaderLabels(const QStringList &labels) { Q_D(QTableWidget); QTableModel *model = d->model(); QTableWidgetItem *item = 0; for (int i = 0; i < model->rowCount() && i < labels.count(); ++i) { item = model->verticalHeaderItem(i); if (!item) { item = model->createItem(); setVerticalHeaderItem(i, item); } item->setText(labels.at(i)); } } /*! Sets the horizontal header labels using \a labels. */ void QTableWidget::setHorizontalHeaderLabels(const QStringList &labels) { Q_D(QTableWidget); QTableModel *model = d->model(); QTableWidgetItem *item = 0; for (int i = 0; i < model->columnCount() && i < labels.count(); ++i) { item = model->horizontalHeaderItem(i); if (!item) { item = model->createItem(); setHorizontalHeaderItem(i, item); } item->setText(labels.at(i)); } } /*! Returns the row of the current item. \sa currentColumn(), setCurrentCell() */ int QTableWidget::currentRow() const { return currentIndex().row(); } /*! Returns the column of the current item. \sa currentRow(), setCurrentCell() */ int QTableWidget::currentColumn() const { return currentIndex().column(); } /*! Returns the current item. \sa setCurrentItem() */ QTableWidgetItem *QTableWidget::currentItem() const { Q_D(const QTableWidget); return d->model()->item(currentIndex()); } /*! Sets the current item to \a item. Depending on the current \l{QAbstractItemView::SelectionMode}{selection mode}, the item may also be selected. \sa currentItem(), setCurrentCell() */ void QTableWidget::setCurrentItem(QTableWidgetItem *item) { Q_D(QTableWidget); setCurrentIndex(d->model()->index(item)); } /*! \since 4.4 Sets the current item to be \a item, using the given \a command. \sa currentItem(), setCurrentCell() */ void QTableWidget::setCurrentItem(QTableWidgetItem *item, QItemSelectionModel::SelectionFlags command) { Q_D(QTableWidget); d->selectionModel->setCurrentIndex(d->model()->index(item), command); } /*! \since 4.1 Sets the current cell to be the cell at position (\a row, \a column). Depending on the current \l{QAbstractItemView::SelectionMode}{selection mode}, the cell may also be selected. \sa setCurrentItem(), currentRow(), currentColumn() */ void QTableWidget::setCurrentCell(int row, int column) { setCurrentIndex(model()->index(row, column, QModelIndex())); } /*! \since 4.4 Sets the current cell to be the cell at position (\a row, \a column), using the given \a command. \sa setCurrentItem(), currentRow(), currentColumn() */ void QTableWidget::setCurrentCell(int row, int column, QItemSelectionModel::SelectionFlags command) { Q_D(QTableWidget); d->selectionModel->setCurrentIndex(model()->index(row, column, QModelIndex()), command); } /*! Sorts all the rows in the table widget based on \a column and \a order. */ void QTableWidget::sortItems(int column, Qt::SortOrder order) { Q_D(QTableWidget); d->model()->sort(column, order); horizontalHeader()->setSortIndicator(column, order); } /*! \internal */ void QTableWidget::setSortingEnabled(bool enable) { QTableView::setSortingEnabled(enable); } /*! \internal */ bool QTableWidget::isSortingEnabled() const { return QTableView::isSortingEnabled(); } /*! Starts editing the \a item if it is editable. */ void QTableWidget::editItem(QTableWidgetItem *item) { Q_D(QTableWidget); if (!item) return; edit(d->model()->index(item)); } /*! Opens an editor for the give \a item. The editor remains open after editing. \sa closePersistentEditor() */ void QTableWidget::openPersistentEditor(QTableWidgetItem *item) { Q_D(QTableWidget); if (!item) return; QModelIndex index = d->model()->index(item); QAbstractItemView::openPersistentEditor(index); } /*! Closes the persistent editor for \a item. \sa openPersistentEditor() */ void QTableWidget::closePersistentEditor(QTableWidgetItem *item) { Q_D(QTableWidget); if (!item) return; QModelIndex index = d->model()->index(item); QAbstractItemView::closePersistentEditor(index); } /*! \since 4.1 Returns the widget displayed in the cell in the given \a row and \a column. \note The table takes ownership of the widget. \sa setCellWidget() */ QWidget *QTableWidget::cellWidget(int row, int column) const { QModelIndex index = model()->index(row, column, QModelIndex()); return QAbstractItemView::indexWidget(index); } /*! \since 4.1 Sets the given \a widget to be displayed in the cell in the given \a row and \a column, passing the ownership of the widget to the table. If cell widget A is replaced with cell widget B, cell widget A will be deleted. For example, in the code snippet below, the QLineEdit object will be deleted. \snippet doc/src/snippets/code/src_gui_itemviews_qtablewidget.cpp 0 \sa cellWidget() */ void QTableWidget::setCellWidget(int row, int column, QWidget *widget) { QModelIndex index = model()->index(row, column, QModelIndex()); QAbstractItemView::setIndexWidget(index, widget); } /*! Returns true if the \a item is selected, otherwise returns false. \obsolete This function is deprecated. Use \l{QTableWidgetItem::isSelected()} instead. */ bool QTableWidget::isItemSelected(const QTableWidgetItem *item) const { Q_D(const QTableWidget); QModelIndex index = d->model()->index(item); return selectionModel()->isSelected(index); } /*! Selects or deselects \a item depending on \a select. \obsolete This function is deprecated. Use \l{QTableWidgetItem::setSelected()} instead. */ void QTableWidget::setItemSelected(const QTableWidgetItem *item, bool select) { Q_D(QTableWidget); QModelIndex index = d->model()->index(item); selectionModel()->select(index, select ? QItemSelectionModel::Select : QItemSelectionModel::Deselect); } /*! Selects or deselects the \a range depending on \a select. */ void QTableWidget::setRangeSelected(const QTableWidgetSelectionRange &range, bool select) { if (!model()->hasIndex(range.topRow(), range.leftColumn(), rootIndex()) || !model()->hasIndex(range.bottomRow(), range.rightColumn(), rootIndex())) return; QModelIndex topLeft = model()->index(range.topRow(), range.leftColumn(), rootIndex()); QModelIndex bottomRight = model()->index(range.bottomRow(), range.rightColumn(), rootIndex()); selectionModel()->select(QItemSelection(topLeft, bottomRight), select ? QItemSelectionModel::Select : QItemSelectionModel::Deselect); } /*! Returns a list of all selected ranges. \sa QTableWidgetSelectionRange */ QList QTableWidget::selectedRanges() const { const QList ranges = selectionModel()->selection(); QList result; for (int i = 0; i < ranges.count(); ++i) result.append(QTableWidgetSelectionRange(ranges.at(i).top(), ranges.at(i).left(), ranges.at(i).bottom(), ranges.at(i).right())); return result; } /*! Returns a list of all selected items. This function returns a list of pointers to the contents of the selected cells. Use the selectedIndexes() function to retrieve the complete selection \e including empty cells. \sa selectedIndexes() */ QList QTableWidget::selectedItems() { Q_D(QTableWidget); QModelIndexList indexes = selectionModel()->selectedIndexes(); QList items; for (int i = 0; i < indexes.count(); ++i) { QModelIndex index = indexes.at(i); if (isIndexHidden(index)) continue; QTableWidgetItem *item = d->model()->item(index); if (item) items.append(item); } return items; } /*! Finds items that matches the \a text using the given \a flags. */ QList QTableWidget::findItems(const QString &text, Qt::MatchFlags flags) const { Q_D(const QTableWidget); QModelIndexList indexes; for (int column = 0; column < columnCount(); ++column) indexes += d->model()->match(model()->index(0, column, QModelIndex()), Qt::DisplayRole, text, -1, flags); QList items; for (int i = 0; i < indexes.size(); ++i) items.append(d->model()->item(indexes.at(i))); return items; } /*! Returns the visual row of the given \a logicalRow. */ int QTableWidget::visualRow(int logicalRow) const { return verticalHeader()->visualIndex(logicalRow); } /*! Returns the visual column of the given \a logicalColumn. */ int QTableWidget::visualColumn(int logicalColumn) const { return horizontalHeader()->visualIndex(logicalColumn); } /*! \fn QTableWidgetItem *QTableWidget::itemAt(const QPoint &point) const Returns a pointer to the item at the given \a point, or returns 0 if \a point is not covered by an item in the table widget. \sa item() */ QTableWidgetItem *QTableWidget::itemAt(const QPoint &p) const { Q_D(const QTableWidget); return d->model()->item(indexAt(p)); } /*! Returns the rectangle on the viewport occupied by the item at \a item. */ QRect QTableWidget::visualItemRect(const QTableWidgetItem *item) const { Q_D(const QTableWidget); if (!item) return QRect(); QModelIndex index = d->model()->index(const_cast(item)); Q_ASSERT(index.isValid()); return visualRect(index); } /*! Scrolls the view if necessary to ensure that the \a item is visible. The \a hint parameter specifies more precisely where the \a item should be located after the operation. */ void QTableWidget::scrollToItem(const QTableWidgetItem *item, QAbstractItemView::ScrollHint hint) { Q_D(QTableWidget); if (!item) return; QModelIndex index = d->model()->index(const_cast(item)); Q_ASSERT(index.isValid()); QTableView::scrollTo(index, hint); } /*! Returns the item prototype used by the table. \sa setItemPrototype() */ const QTableWidgetItem *QTableWidget::itemPrototype() const { Q_D(const QTableWidget); return d->model()->itemPrototype(); } /*! Sets the item prototype for the table to the specified \a item. The table widget will use the item prototype clone function when it needs to create a new table item. For example when the user is editing editing in an empty cell. This is useful when you have a QTableWidgetItem subclass and want to make sure that QTableWidget creates instances of your subclass. The table takes ownership of the prototype. \sa itemPrototype() */ void QTableWidget::setItemPrototype(const QTableWidgetItem *item) { Q_D(QTableWidget); d->model()->setItemPrototype(item); } /*! Inserts an empty row into the table at \a row. */ void QTableWidget::insertRow(int row) { Q_D(QTableWidget); d->model()->insertRows(row); } /*! Inserts an empty column into the table at \a column. */ void QTableWidget::insertColumn(int column) { Q_D(QTableWidget); d->model()->insertColumns(column); } /*! Removes the row \a row and all its items from the table. */ void QTableWidget::removeRow(int row) { Q_D(QTableWidget); d->model()->removeRows(row); } /*! Removes the column \a column and all its items from the table. */ void QTableWidget::removeColumn(int column) { Q_D(QTableWidget); d->model()->removeColumns(column); } /*! Removes all items in the view. This will also remove all selections. The table dimensions stay the same. */ void QTableWidget::clear() { Q_D(QTableWidget); selectionModel()->clear(); d->model()->clear(); } /*! \since 4.2 Removes all items not in the headers from the view. This will also remove all selections. The table dimensions stay the same. */ void QTableWidget::clearContents() { Q_D(QTableWidget); selectionModel()->clear(); d->model()->clearContents(); } /*! Returns a list of MIME types that can be used to describe a list of tablewidget items. \sa mimeData() */ QStringList QTableWidget::mimeTypes() const { return d_func()->model()->QAbstractTableModel::mimeTypes(); } /*! Returns an object that contains a serialized description of the specified \a items. The format used to describe the items is obtained from the mimeTypes() function. If the list of items is empty, 0 is returned rather than a serialized empty list. */ QMimeData *QTableWidget::mimeData(const QList) const { return d_func()->model()->internalMimeData(); } /*! Handles the \a data supplied by a drag and drop operation that ended with the given \a action in the given \a row and \a column. Returns true if the data and action can be handled by the model; otherwise returns false. \sa supportedDropActions() */ bool QTableWidget::dropMimeData(int row, int column, const QMimeData *data, Qt::DropAction action) { QModelIndex idx; #ifndef QT_NO_DRAGANDDROP if (dropIndicatorPosition() == QAbstractItemView::OnItem) { // QAbstractTableModel::dropMimeData will overwrite on the index if row == -1 and column == -1 idx = model()->index(row, column); row = -1; column = -1; } #endif return d_func()->model()->QAbstractTableModel::dropMimeData(data, action , row, column, idx); } /*! Returns the drop actions supported by this view. \sa Qt::DropActions */ Qt::DropActions QTableWidget::supportedDropActions() const { return d_func()->model()->QAbstractTableModel::supportedDropActions() | Qt::MoveAction; } /*! Returns a list of pointers to the items contained in the \a data object. If the object was not created by a QTreeWidget in the same process, the list is empty. */ QList QTableWidget::items(const QMimeData *data) const { const QTableWidgetMimeData *twd = qobject_cast(data); if (twd) return twd->items; return QList(); } /*! Returns the QModelIndex assocated with the given \a item. */ QModelIndex QTableWidget::indexFromItem(QTableWidgetItem *item) const { Q_D(const QTableWidget); return d->model()->index(item); } /*! Returns a pointer to the QTableWidgetItem assocated with the given \a index. */ QTableWidgetItem *QTableWidget::itemFromIndex(const QModelIndex &index) const { Q_D(const QTableWidget); return d->model()->item(index); } /*! \internal */ void QTableWidget::setModel(QAbstractItemModel * /*model*/) { Q_ASSERT(!"QTableWidget::setModel() - Changing the model of the QTableWidget is not allowed."); } /*! \reimp */ bool QTableWidget::event(QEvent *e) { return QTableView::event(e); } #ifndef QT_NO_DRAGANDDROP /*! \reimp */ void QTableWidget::dropEvent(QDropEvent *event) { Q_D(QTableWidget); if (event->source() == this && (event->dropAction() == Qt::MoveAction || dragDropMode() == QAbstractItemView::InternalMove)) { QModelIndex topIndex; int col = -1; int row = -1; if (d->dropOn(event, &row, &col, &topIndex)) { QModelIndexList indexes = selectedIndexes(); int top = INT_MAX; int left = INT_MAX; for (int i = 0; i < indexes.count(); ++i) { top = qMin(indexes.at(i).row(), top); left = qMin(indexes.at(i).column(), left); } QList taken; for (int i = 0; i < indexes.count(); ++i) taken.append(takeItem(indexes.at(i).row(), indexes.at(i).column())); for (int i = 0; i < indexes.count(); ++i) { QModelIndex index = indexes.at(i); int r = index.row() - top + topIndex.row(); int c = index.column() - left + topIndex.column(); setItem(r, c, taken.takeFirst()); } event->accept(); // Don't want QAbstractItemView to delete it because it was "moved" we already did it event->setDropAction(Qt::CopyAction); } } QTableView::dropEvent(event); } #endif QT_END_NAMESPACE #include "moc_qtablewidget.cpp" #endif // QT_NO_TABLEWIDGET