/// data() is re-implemented from QStandardItemModel to return the widget window title and icon for the Qt::DecorationRole and Qt::DisplayRole/Qt::EditRole
QVariant AMWindowPaneModel::data(const QModelIndex &index, int role) const {
switch(role) {
case Qt::DisplayRole:
case Qt::EditRole:
// alias items can have separate descriptions, but for normal items, the DisplayRole and EditRole should be the window title
if(!isAlias(index) && internalPane(index))
return internalPane(index)->windowTitle();
else
return AMDragDropItemModel::data(index, role);
break;
case Qt::DecorationRole:
if(!isAlias(index) && internalPane(index))
return internalPane(index)->windowIcon();
else
return AMDragDropItemModel::data(index, role);
break;
// read-only property, defined as being (a) NOT an alias, AND (b) having no valid window pane widget set
case AMWindowPaneModel::IsHeadingRole:
return (index.isValid() && !isAlias(index) && internalPane(index) == 0);
break;
// Dock state: alias items should return the dock state of their target. Other items simply return their dock state, as stored in the AMWindowPaneModel::DockStateRole.
case AMWindowPaneModel::DockStateRole:
if(isAlias(index)) {
QStandardItem* target = aliasTarget(index);
if(target)
return data(target->index(), role);
else
return true;
}
else
return AMDragDropItemModel::data(index, role);
break;
case AMWindowPaneModel::UndockResizeRole:
return AMDragDropItemModel::data(index, role);
break;
case AMWindowPaneModel::IsVisibleRole:
if (AMDragDropItemModel::data(index, role).isValid())
return AMDragDropItemModel::data(index, role);
else
return true;
break;
default:
return AMDragDropItemModel::data(index, role);
}
}
/// Convenience function to return a pointer to an item's QWidget window pane. For alias items, will return the window pane of the target. \warning Might be 0 if an invalid item has been added to the model, or if this index is a heading item.
QWidget* AMWindowPaneModel::pane(const QModelIndex& index) const {
if(!index.isValid())
return 0;
if(isAlias(index)) {
QStandardItem* target = aliasTarget(index);
if(target)
return internalPane(target->index());
else
return 0;
}
else {
return internalPane(index);
}
}
/// setData() is re-implemented from QStandardItemModel to set the widget window title and icon for the Qt::DecorationRole and Qt::DisplayRole/Qt::EditRole
bool AMWindowPaneModel::setData(const QModelIndex &index, const QVariant &value, int role) {
if(!index.isValid())
return false;
switch(role) {
case Qt::DisplayRole:
case Qt::EditRole:
// alias items and heading items can have separate descriptions, but for normal items, the DisplayRole and EditRole should be the window title
if(isAlias(index) || isHeading(index))
return AMDragDropItemModel::setData(index, value, role);
if(internalPane(index)) {
internalPane(index)->setWindowTitle(value.toString());
return true;
}
else
return false;
break;
case Qt::DecorationRole:
// alias items and heading items can have separate icons, but for normal items, the Decoration role should be the window icon
if(isAlias(index) || isHeading(index))
return AMDragDropItemModel::setData(index, value, role);
if(internalPane(index)) {
internalPane(index)->setWindowIcon(value.value<QIcon>());
return true;
}
else
return false;
break;
case AMWindowPaneModel::DockStateRole:
{
// docking an alias? dock the target instead.
if(isAlias(index)) {
QStandardItem* target = aliasTarget(index);
if(target)
return setData(target->index(), value, role);
else
return false;
}
bool nowDocked = value.toBool();
bool wasDocked = isDocked(index);
// set dock state like normal, but emit special signal dockStateChanged() if it's changing.
if(AMDragDropItemModel::setData(index, value, role)) {
QWidget* w = internalPane(index);
if(wasDocked && !nowDocked)
emit dockStateChanged(w, false, index.data(AMWindowPaneModel::UndockResizeRole).toBool());
else if(!wasDocked && nowDocked)
emit dockStateChanged(w, true, index.data(AMWindowPaneModel::UndockResizeRole).toBool());
return true;
}
else
return false;
break;
}
case AMWindowPaneModel::UndockResizeRole:
return AMDragDropItemModel::setData(index, value, role);
break;
default:
return AMDragDropItemModel::setData(index, value, role);
}
}
