ModelView::RemoveItemCommand Class Reference

Command for unddo/redo framework to remove item from a model using child's tag and row. More...

Inheritance diagram for ModelView::RemoveItemCommand:

Collaboration diagram for ModelView::RemoveItemCommand:

Classes
struct	RemoveItemCommandImpl

Public Member Functions
	RemoveItemCommand (SessionItem *parent, TagRow tagrow)
	~RemoveItemCommand () override
std::string	description () const
	Returns command description. More...
void	execute ()
	Execute command. More...
bool	isObsolete () const
	Returns whether the command is obsolete (which means that it shouldn't be kept in the stack). More...
CommandResult	result () const
void	undo ()
	Undo command as it was before execution. More...

Protected Member Functions
SessionItem *	itemFromPath (const Path &path) const
SessionModel *	model () const
Path	pathFromItem (SessionItem *item) const
void	setDescription (const std::string &text)
	Sets command description. More...
void	setObsolete (bool flag)
	Sets command obsolete flag. More...
void	setResult (const CommandResult &command_result)

Private Member Functions
void	execute_command () override
void	undo_command () override

Private Attributes
std::unique_ptr< RemoveItemCommandImpl >	p_impl

Detailed Description

Command for unddo/redo framework to remove item from a model using child's tag and row.

Definition at line 27 of file removeitemcommand.h.

Constructor & Destructor Documentation

RemoveItemCommand()

RemoveItemCommand::RemoveItemCommand	(	SessionItem *	parent,
		TagRow	tagrow
	)

Definition at line 36 of file removeitemcommand.cpp.

    : AbstractItemCommand(parent)
    , p_impl(std::make_unique<RemoveItemCommandImpl>(std::move(tagrow)))
{
    setResult(false);
 
    setDescription(generate_description(p_impl->tagrow));
    p_impl->backup_strategy = CreateItemBackupStrategy(parent->model());
    p_impl->item_path = pathFromItem(parent);
}

References ModelView::CreateItemBackupStrategy(), ModelView::SessionItem::model(), p_impl, ModelView::AbstractItemCommand::pathFromItem(), ModelView::AbstractItemCommand::setDescription(), and ModelView::AbstractItemCommand::setResult().

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~RemoveItemCommand()

RemoveItemCommand::~RemoveItemCommand ( )

overridedefault

Member Function Documentation

description()

std::string AbstractItemCommand::description ( ) const

inherited

Returns command description.

Definition at line 87 of file abstractitemcommand.cpp.

{
    return p_impl->m_text;
}

References ModelView::AbstractItemCommand::p_impl.

execute()

void AbstractItemCommand::execute ( )

inherited

Execute command.

Definition at line 56 of file abstractitemcommand.cpp.

{
    if (!p_impl->can_execute())
        throw std::runtime_error("Can't execute the command. Wrong order.");
 
    execute_command();
 
    p_impl->set_after_execute();
}

References ModelView::AbstractItemCommand::execute_command(), and ModelView::AbstractItemCommand::p_impl.

Referenced by TEST_F().

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execute_command()

void RemoveItemCommand::execute_command ( )

overrideprivatevirtual

Implements ModelView::AbstractItemCommand.

Definition at line 56 of file removeitemcommand.cpp.

{
    auto parent = itemFromPath(p_impl->item_path);
    if (auto child = parent->takeItem(p_impl->tagrow); child) {
        p_impl->backup_strategy->saveItem(child);
        delete child;
        setResult(true);
    } else {
        setResult(false);
        setObsolete(true);
    }
}

References ModelView::AbstractItemCommand::itemFromPath(), p_impl, ModelView::AbstractItemCommand::setObsolete(), and ModelView::AbstractItemCommand::setResult().

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isObsolete()

bool AbstractItemCommand::isObsolete ( ) const

inherited

Returns whether the command is obsolete (which means that it shouldn't be kept in the stack).

Definition at line 80 of file abstractitemcommand.cpp.

{
    return p_impl->m_isObsolete;
}

References ModelView::AbstractItemCommand::p_impl.

Referenced by ModelView::AbstractItemCommand::AbstractItemCommandImpl::can_undo(), and TEST_F().

itemFromPath()

SessionItem * AbstractItemCommand::itemFromPath ( const Path &  path ) const

protectedinherited

Definition at line 116 of file abstractitemcommand.cpp.

{
    return Utils::ItemFromPath(*p_impl->m_model, path);
}

References ModelView::Utils::ItemFromPath(), and ModelView::AbstractItemCommand::p_impl.

Referenced by ModelView::CopyItemCommand::execute_command(), ModelView::InsertNewItemCommand::execute_command(), ModelView::MoveItemCommand::execute_command(), execute_command(), ModelView::SetValueCommand::swap_values(), ModelView::CopyItemCommand::undo_command(), ModelView::InsertNewItemCommand::undo_command(), ModelView::MoveItemCommand::undo_command(), and undo_command().

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model()

SessionModel * AbstractItemCommand::model ( ) const

protectedinherited

Definition at line 121 of file abstractitemcommand.cpp.

{
    return p_impl->m_model;
}

References ModelView::AbstractItemCommand::p_impl.

pathFromItem()

Path AbstractItemCommand::pathFromItem ( SessionItem *  item ) const

protectedinherited

Definition at line 111 of file abstractitemcommand.cpp.

{
    return Utils::PathFromItem(item);
}

References ModelView::Utils::PathFromItem().

Referenced by ModelView::CopyItemCommand::CopyItemCommand(), ModelView::InsertNewItemCommand::InsertNewItemCommand(), ModelView::MoveItemCommand::MoveItemCommand(), RemoveItemCommand(), ModelView::SetValueCommand::SetValueCommand(), ModelView::MoveItemCommand::execute_command(), and ModelView::MoveItemCommand::undo_command().

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result()

CommandResult AbstractItemCommand::result ( ) const

inherited

Definition at line 92 of file abstractitemcommand.cpp.

{
    return p_impl->m_result;
}

References ModelView::AbstractItemCommand::p_impl.

Referenced by ModelView::CopyItemCommand::execute_command(), ModelView::SetValueCommand::swap_values(), and TEST_F().

setDescription()

void AbstractItemCommand::setDescription ( const std::string &  text )

protectedinherited

Sets command description.

Definition at line 106 of file abstractitemcommand.cpp.

{
    p_impl->m_text = text;
}

References ModelView::AbstractItemCommand::p_impl.

Referenced by ModelView::CopyItemCommand::CopyItemCommand(), ModelView::MoveItemCommand::MoveItemCommand(), RemoveItemCommand(), ModelView::SetValueCommand::SetValueCommand(), and ModelView::InsertNewItemCommand::execute_command().

setObsolete()

void AbstractItemCommand::setObsolete ( bool  flag )

protectedinherited

Sets command obsolete flag.

Definition at line 99 of file abstractitemcommand.cpp.

{
    p_impl->m_isObsolete = flag;
}

References ModelView::AbstractItemCommand::p_impl.

Referenced by ModelView::CopyItemCommand::execute_command(), ModelView::InsertNewItemCommand::execute_command(), execute_command(), and ModelView::SetValueCommand::swap_values().

setResult()

void AbstractItemCommand::setResult ( const CommandResult &  command_result )

protectedinherited

Definition at line 126 of file abstractitemcommand.cpp.

{
    p_impl->m_result = command_result;
}

References ModelView::AbstractItemCommand::p_impl.

Referenced by ModelView::CopyItemCommand::CopyItemCommand(), ModelView::InsertNewItemCommand::InsertNewItemCommand(), ModelView::MoveItemCommand::MoveItemCommand(), RemoveItemCommand(), ModelView::SetValueCommand::SetValueCommand(), ModelView::CopyItemCommand::execute_command(), ModelView::InsertNewItemCommand::execute_command(), execute_command(), ModelView::SetValueCommand::swap_values(), ModelView::CopyItemCommand::undo_command(), and ModelView::InsertNewItemCommand::undo_command().

undo()

void AbstractItemCommand::undo ( )

inherited

Undo command as it was before execution.

Definition at line 68 of file abstractitemcommand.cpp.

{
    if (!p_impl->can_undo())
        throw std::runtime_error("Can't undo the command. Wrong order.");
 
    undo_command();
 
    p_impl->set_after_undo();
}

References ModelView::AbstractItemCommand::p_impl, and ModelView::AbstractItemCommand::undo_command().

Referenced by TEST_F().

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undo_command()

void RemoveItemCommand::undo_command ( )

overrideprivatevirtual

Implements ModelView::AbstractItemCommand.

Definition at line 49 of file removeitemcommand.cpp.

{
    auto parent = itemFromPath(p_impl->item_path);
    auto reco_item = p_impl->backup_strategy->restoreItem();
    parent->insertItem(reco_item.release(), p_impl->tagrow);
}

References ModelView::AbstractItemCommand::itemFromPath(), and p_impl.

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Member Data Documentation

p_impl

std::unique_ptr<RemoveItemCommandImpl> ModelView::RemoveItemCommand::p_impl

private

Definition at line 37 of file removeitemcommand.h.

Referenced by RemoveItemCommand(), execute_command(), and undo_command().

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The documentation for this class was generated from the following files:

• /home/www/ba/mvvm/model/mvvm/commands/removeitemcommand.h
• /home/www/ba/mvvm/model/mvvm/commands/removeitemcommand.cpp