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- #include <QtGui>
- #include "model.h"
- #include <QDebug>
- /*!
- Constructs a table model with at least one row and one column.
- */
- TableModel::TableModel(int rows, int columns, QObject *parent)
- : QAbstractTableModel(parent)
- {
- QStringList newList;
- for (int column = 0; column < qMax(1, columns); ++column) {
- newList.append("");
- }
- for (int row = 0; row < qMax(1, rows); ++row) {
- rowList.append(newList);
- }
- }
- /*!
- Returns the number of items in the row list as the number of rows
- in the model.
- */
- int TableModel::rowCount(const QModelIndex &/*parent*/) const
- {
- return rowList.size();
- }
- /*!
- Returns the number of items in the first list item as the number of
- columns in the model. All rows should have the same number of columns.
- */
- int TableModel::columnCount(const QModelIndex &/*parent*/) const
- {
- return rowList[0].size();
- }
- /*!
- Returns an appropriate value for the requested data.
- If the view requests an invalid index, an invalid variant is returned.
- Any valid index that corresponds to a string in the list causes that
- string to be returned for the display role; otherwise an invalid variant
- is returned.
- */
- QVariant TableModel::data(const QModelIndex &index, int role) const
- {
- if (!index.isValid())
- return QVariant();
- if (role == Qt::DisplayRole)
- return rowList[index.row()][index.column()];
- else
- return QVariant();
- }
- /*!
- Returns the appropriate header string depending on the orientation of
- the header and the section. If anything other than the display role is
- requested, we return an invalid variant.
- */
- QVariant TableModel::headerData(int section, Qt::Orientation orientation,
- int role) const
- {
- if (role != Qt::DisplayRole)
- return QVariant();
- if (orientation == Qt::Horizontal)
- return QString("Column %1").arg(section);
- else
- return QString("Row %1").arg(section);
- }
- /*!
- Returns an appropriate value for the item's flags. Valid items are
- enabled, selectable, and editable.
- */
- Qt::ItemFlags TableModel::flags(const QModelIndex &index) const
- {
- if (!index.isValid())
- return Qt::ItemIsEnabled;
- return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable;
- }
- /*!
- Changes an item in the model, but only if the following conditions
- are met:
- * The index supplied is valid.
- * The role associated with editing text is specified.
- The dataChanged() signal is emitted if the item is changed.
- */
- bool TableModel::setData(const QModelIndex &index,
- const QVariant &value, int role)
- {
- if (!index.isValid() || role != Qt::EditRole)
- return false;
- qDebug()<< value.toString();
- rowList[index.row()][index.column()] = value.toString();
- emit dataChanged(index, index);
- return true;
- }
- /*!
- Inserts a number of rows into the model at the specified position.
- */
- bool TableModel::insertRows(int position, int rows, const QModelIndex &parent)
- {
- int columns = columnCount();
- beginInsertRows(parent, position, position + rows - 1);
- for (int row = 0; row < rows; ++row) {
- QStringList items;
- for (int column = 0; column < columns; ++column)
- items.append("");
- rowList.insert(position, items);
- }
- endInsertRows();
- return true;
- }
- /*!
- Inserts a number of columns into the model at the specified position.
- Each entry in the list is extended in turn with the required number of
- empty strings.
- */
- bool TableModel::insertColumns(int position, int columns, const QModelIndex &parent)
- {
- int rows = rowCount();
- beginInsertColumns(parent, position, position + columns - 1);
- for (int row = 0; row < rows; ++row) {
- for (int column = position; column < columns; ++column) {
- rowList[row].insert(position, "");
- }
- }
- endInsertColumns();
- return true;
- }
- /*!
- Removes a number of rows from the model at the specified position.
- */
- bool TableModel::removeRows(int position, int rows, const QModelIndex &parent)
- {
- beginRemoveRows(parent, position, position + rows - 1);
- for (int row = 0; row < rows; ++row) {
- rowList.removeAt(position);
- }
- endRemoveRows();
- return true;
- }
- /*!
- Removes a number of columns from the model at the specified position.
- Each row is shortened by the number of columns specified.
- */
- bool TableModel::removeColumns(int position, int columns, const QModelIndex &parent)
- {
- int rows = rowCount();
- beginRemoveColumns(parent, position, position + columns - 1);
- for (int row = 0; row < rows; ++row) {
- for (int column = 0; column < columns; ++column) {
- rowList[row].removeAt(position);
- }
- }
- endRemoveColumns();
- return true;
- }
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