/**
* Insert a new widget
* @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::insertWidget(MdiSubWindow *widget, int row, int col)
{
int index = calcFlatIndex( row, col );
int lastRow = rowCount() - 1;
int lastCol = columnCount() - 1;
// if the last tile has a widget append a row
if ( getWidget( lastRow, lastCol ) != NULL )
{
++lastRow;
Tile *tile = getOrAddTile( lastRow, lastCol );
(void) tile;
}
// shift widgets towards the bottom
int lastIndex = calcFlatIndex( lastRow, lastCol );
int rowTo(0), colTo(0), rowFrom(0), colFrom(0);
for(int i = lastIndex; i > index; --i)
{
calcTilePosition( i, rowTo, colTo );
calcTilePosition( i - 1, rowFrom, colFrom );
if ( hasWidget( rowFrom, colFrom ) )
{
MdiSubWindow *w = removeTile( rowFrom, colFrom );
addWidget( w, rowTo, colTo );
}
}
addWidget( widget, row, col );
}
/**
* 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);
}
}
/**
* Re-arrange the tiles according to a new layout shape.
* @param newColumnCount :: A new number of columns in the layout.
*/
void TiledWindow::reshape(int newColumnCount)
{
if ( newColumnCount < 1 )
{
throw std::invalid_argument("Number of columns in a TiledWindow cannot be less than 1.");
}
clearSelection();
int nrows = rowCount();
int ncols = columnCount();
// remove all widgets and store their pointers
QList<MdiSubWindow*> widgets;
for(int row = 0; row < nrows; ++row)
{
for(int col = 0; col < ncols; ++col)
{
Tile *tile = getTile(row,col);
MdiSubWindow *widget = tile->widget();
if ( widget != NULL )
{
tile->removeWidget();
widgets.append( widget );
}
}
}
int nWidgets = widgets.size();
if ( nWidgets < newColumnCount )
{
newColumnCount = nWidgets;
}
if ( newColumnCount == 0 ) return;
// clear the layout
init(1,1);
// make sure new dimensions will fit all widgets
int newRowCount = nWidgets / newColumnCount;
if ( newRowCount * newColumnCount != nWidgets )
{
newRowCount += 1;
}
// set up the new layout by putting in an empty tile at the top-right corner
// m_layout now knows its rowCount and columnCount and calcTilePosition can be used
Tile *tile = getOrAddTile(newRowCount - 1, newColumnCount - 1);
(void) tile;
// re-insert the widgets
for(int i = 0; i < nWidgets; ++i)
{
int row(0), col(0);
calcTilePosition( i, row, col );
addWidget( widgets[i], row, col );
}
}
