/**
* Add a new sub-window at a given position in the layout.
* The row and column indices do not have to be within the current shape -
* it will change accordingly.
* @param widget :: An MdiSubWindow to add.
* @param row :: A row index at which to place the new tile.
* @param col :: A column index at which to place the new tile.
*/
void TiledWindow::addWidget(MdiSubWindow *widget, int row, int col) {
try {
Tile *tile = getOrAddTile(row, col);
// prepare the cell
m_layout->setColumnMinimumWidth(col, minimumTileWidth);
m_layout->setRowMinimumHeight(row, minimumTileHeight);
m_layout->setColumnStretch(col, 1);
// detach the widget from ApplicationWindow
widget->detach();
// widget must have it's parent
widget->setParent(this);
// disable mouse events
widget->setAttribute(Qt::WA_TransparentForMouseEvents, true);
// attach it to this window
tile->setWidget(widget);
connect(widget, SIGNAL(detachFromParent(MdiSubWindow *)), this,
SLOT(removeWidget(MdiSubWindow *)));
connect(widget, SIGNAL(closedWindow(MdiSubWindow *)), this,
SLOT(removeWidget(MdiSubWindow *)));
// fill possible empty spaces with Tiles
tileEmptyCells();
} catch (std::invalid_argument &ex) {
QMessageBox::critical(this, "MantidPlot- Error",
"Cannot add a widget to a TiledWindow:\n\n" +
QString::fromStdString(ex.what()));
sendWidgetTo(widget, Default);
}
}
/**
* Get a Tile widget at position(row,col). If it doesn't exist create it.
* @param row :: The row of the cell.
* @param col :: The column of the cell.
*/
Tile *TiledWindow::getOrAddTile(int row, int col) {
auto item = m_layout->itemAtPosition(row, col);
if (item == NULL) {
m_layout->addWidget(new Tile(this), row, col);
tileEmptyCells();
item = m_layout->itemAtPosition(row, col);
if (item == NULL) {
throw std::logic_error("TiledWindow cannot be properly initialized.");
}
}
Tile *widget = dynamic_cast<Tile *>(item->widget());
if (widget != NULL)
return widget;
throw std::logic_error("TiledWindow wasn't properly initialized.");
}
/**
* Initialize the inner widgets.
* @param nrows :: Number of rows to create.
* @param ncols :: Number of columns to create.
*/
void TiledWindow::init(int nrows, int ncols)
{
if ( nrows < 1 )
{
throw std::invalid_argument("Number of rows in TiledWindow cannot be less then 1.");
}
if ( ncols < 1 )
{
throw std::invalid_argument("Number of columns in TiledWindow cannot be less then 1.");
}
if ( m_scrollArea )
{
m_scrollArea->close();
m_scrollArea->deleteLater();
}
m_scrollArea = new QScrollArea(this);
m_scrollArea->setWidgetResizable(true);
QWidget *innerWidget = new InnerWidget(m_scrollArea);
m_layout = new QGridLayout(innerWidget);
m_layout->setMargin(6);
m_layout->setColumnMinimumWidth(0,minimumTileWidth);
m_layout->setRowMinimumHeight(0,minimumTileHeight);
m_layout->addWidget(new Tile(this), nrows - 1, ncols - 1);
m_layout->setColumnMinimumWidth(0,minimumTileWidth);
m_layout->setRowMinimumHeight(0,minimumTileHeight);
for(int col = 0; col < ncols; ++col)
{
m_layout->setColStretch( col, 1 );
}
m_scrollArea->setWidget(innerWidget);
this->setWidget( NULL );
this->setWidget( m_scrollArea );
tileEmptyCells();
}