amdfxlucas / qstditemmodel Goto Github PK

as of now, takeRow() is not undo-able, neighter is takeColumn()
fix that

it has to be possible to determine if an item with a given uuid is contained in a model
(that is to say, a direct or indirect child of the models root-node ) or not

unfortunately the legacy implementation of QStandardItem/Model confused this condition,
with the fact if an items 'model' pointer is null or not

because an items model pointer is almost never null, it could be convenient to add a method 'bool QStdItemModel::contains(unsigned long long int uuid )' to the model

or alternatively

Let the items themselves determine if they are contained inside the model which their model-pointer points to,
by following their parent-pointer upward until they reach nullptr -> if the last parent matches 'model->d_func()->root.data()'
they know their part of the model, their model pointer points to

the current implementation does not allow for cut/paste of items across models, fix this
(as of now QStdItemModelPrivate has a member 'QStdItem* cute_item')

there is a bug somewhere in bool QStdItemModel::iterate_interuptable() so i made it use iterate again

represent common model Actions such as Cut/Paste , Deletion , Quantity and DueDate-Editing as Model-UndoCommands.

this reduces code-duplication, between different Widgets, that use the same ContextMenuActions,
since all they have to do in their slots is to instantiate the corresponding ModelCommand.

DnD actions are only un/redo-able, if QStdItemModel is used with a 'MyTreeView' which overrides 'startDrag()' and wraps it into an UndoStackMacro

As of now, QStdItemModel::save( ) serializes the entire model (its root node).

This isn't always what we want.
i.e. whith hplan_model, we would like to save only parts of the production-schedule,
which are ready to be released

to enable this, create a method QStdItemModel::save(const QModelIndex& index)
that only serializes the Day/Week or Month-Item pointed to by index

why hasn't QModelIndex got a method QStdItem* QModelIndex::item() ?
(when QStdItem has a method QModelIndex QStdItem::index() )
or QModelIndex QModelIndex::child()

i set-up the 'cut-paste' dev branch to implement cut-paste with model-items.
Cut and Paste are required to be undone and therefore implemented with command pattern.

As of now, QStdItemModel can only fully undo QAbstractItemView::InternalMove Drags,
where source and target are the same.
In order to support Drag and Drop accross widgets, i think it'll be neccessary to serialize the source and target model pointers
into the QMimeData

bool moveColumn(const QModelIndex &sourceParent, int sourceColumn, const QModelIndex &destinationParent, int destinationChild)

virtual bool moveColumns(const QModelIndex &sourceParent, int sourceColumn, int count, const QModelIndex &destinationParent, int destinationChild)

bool moveRow(const QModelIndex &sourceParent, int sourceRow, const QModelIndex &destinationParent, int destinationChild)

virtual bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild)