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    41 

    42 /*

    43   window.cpp

    44 

    45   A minimal subclass of QTableView with slots to allow the selection model

    46   to be monitored.

    47 */

    48 

    49 #include <QAbstractItemModel>

    50 #include <QItemSelection>

    51 #include <QItemSelectionModel>

    52 #include <QMenu>

    53 #include <QMenuBar>

    54 #include <QStatusBar>

    55 

    56 #include "model.h"

    57 #include "window.h"

    58 

    59 MainWindow::MainWindow(QWidget *parent)

    60     : QMainWindow(parent)

    61 {

    62     setWindowTitle("Selected Items in a Table Model");

    63 

    64     model = new TableModel(8, 4, this);

    65 

    66     table = new QTableView(this);

    67     table->setModel(model);

    68 

    69     QMenu *actionMenu = new QMenu(tr("&Actions"), this);

    70     QAction *fillAction = actionMenu->addAction(tr("&Fill Selection"));

    71     QAction *clearAction = actionMenu->addAction(tr("&Clear Selection"));

    72     QAction *selectAllAction = actionMenu->addAction(tr("&Select All"));

    73     menuBar()->addMenu(actionMenu);

    74 

    75     connect(fillAction, SIGNAL(triggered()), this, SLOT(fillSelection()));

    76     connect(clearAction, SIGNAL(triggered()), this, SLOT(clearSelection()));

    77     connect(selectAllAction, SIGNAL(triggered()), this, SLOT(selectAll()));

    78 

    79     selectionModel = table->selectionModel();

    80 

    81     statusBar();

    82     setCentralWidget(table);

    83 }

    84 

    85 void MainWindow::fillSelection()

    86 {

    87 //! [0]

    88     QModelIndexList indexes = selectionModel->selectedIndexes();

    89     QModelIndex index;

    90 

    91     foreach(index, indexes) {

    92         QString text = QString("(%1,%2)").arg(index.row()).arg(index.column());

    93         model->setData(index, text);

    94     }

    95 //! [0]

    96 }

    97 

    98 void MainWindow::clearSelection()

    99 {

   100     QModelIndexList indexes = selectionModel->selectedIndexes();

   101     QModelIndex index;

   102 

   103     foreach(index, indexes)

   104         model->setData(index, "");

   105 }

   106 

   107 void MainWindow::selectAll()

   108 {

   109 //! [1]

   110     QModelIndex parent = QModelIndex();

   111 //! [1] //! [2]

   112     QModelIndex topLeft = model->index(0, 0, parent);

   113     QModelIndex bottomRight = model->index(model->rowCount(parent)-1,

   114         model->columnCount(parent)-1, parent);

   115 //! [2]

   116 

   117 //! [3]

   118     QItemSelection selection(topLeft, bottomRight);

   119     selectionModel->select(selection, QItemSelectionModel::Select);

   120 //! [3]

   121 }