ModelView::UndoStack Class Reference

Default undo stack implementation. More...

Inheritance diagram for ModelView::UndoStack:

Collaboration diagram for ModelView::UndoStack:

Classes
struct	UndoStackImpl

Public Member Functions
	UndoStack ()
	~UndoStack () override
void	beginMacro (const std::string &name) override
bool	canRedo () const override
bool	canUndo () const override
void	clear () override
int	count () const override
void	endMacro () override
void	execute (std::shared_ptr< AbstractItemCommand > command) override
	Executes the command, then pushes it in the stack for possible undo. More...
int	index () const override
bool	isActive () const override
void	redo () override
void	setUndoLimit (int limit) override
void	undo () override

Static Public Member Functions
static QUndoStack *	qtUndoStack (UndoStackInterface *stack_interface)
	Returns underlying QUndoStack if given object can be casted to UndoStack instance. More...

Private Attributes
std::unique_ptr< UndoStackImpl >	p_impl

Detailed Description

Default undo stack implementation.

Internally relies on QUndoStack. It serves two goals: a) hides Qt usage b) simplifies future refactoring toward Qt-independent libmvvm_model library.

Definition at line 30 of file undostack.h.

Constructor & Destructor Documentation

UndoStack()

UndoStack::UndoStack

(

)

Definition at line 27 of file undostack.cpp.

: p_impl(std::make_unique<UndoStackImpl>()) {}

~UndoStack()

UndoStack::~UndoStack ( )

overridedefault

Member Function Documentation

beginMacro()

void UndoStack::beginMacro ( const std::string &  name )

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 94 of file undostack.cpp.

{
    p_impl->undoStack()->beginMacro(QString::fromStdString(name));
}

References RealSpace::Particles::name(), and p_impl.

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canRedo()

bool UndoStack::canRedo ( ) const

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 48 of file undostack.cpp.

{
    return p_impl->undoStack()->canRedo();
}

References p_impl.

Referenced by TEST_F().

canUndo()

bool UndoStack::canUndo ( ) const

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 43 of file undostack.cpp.

{
    return p_impl->undoStack()->canUndo();
}

References p_impl.

Referenced by TEST_F().

clear()

void UndoStack::clear ( )

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 73 of file undostack.cpp.

{
    return p_impl->undoStack()->clear();
}

References p_impl.

count()

int UndoStack::count ( ) const

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 58 of file undostack.cpp.

{
    return p_impl->undoStack()->count();
}

References p_impl.

Referenced by TEST_F().

endMacro()

void UndoStack::endMacro ( )

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 99 of file undostack.cpp.

{
    p_impl->undoStack()->endMacro();
}

References p_impl.

execute()

void UndoStack::execute ( std::shared_ptr< AbstractItemCommand >  command )

overridevirtual

Executes the command, then pushes it in the stack for possible undo.

Implements ModelView::UndoStackInterface.

Definition at line 29 of file undostack.cpp.

{
    // Wrapping command for Qt. It will be executed by Qt after push.
    auto adapter = new CommandAdapter(std::move(command));
    p_impl->undoStack()->push(adapter);
}

References p_impl.

Referenced by TEST_F().

index()

int UndoStack::index ( ) const

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 53 of file undostack.cpp.

{
    return p_impl->undoStack()->index();
}

References p_impl.

Referenced by TEST_F().

isActive()

bool UndoStack::isActive ( ) const

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 38 of file undostack.cpp.

{
    return p_impl->undoStack()->isActive();
}

References p_impl.

qtUndoStack()

QUndoStack * UndoStack::qtUndoStack ( UndoStackInterface *  stack_interface )

static

Returns underlying QUndoStack if given object can be casted to UndoStack instance.

This method is used to "convert" current instance to Qt implementation, and use it with other Qt widgets, if necessary.

Definition at line 87 of file undostack.cpp.

{
    if (auto stack = dynamic_cast<UndoStack*>(stack_interface); stack)
        return stack->p_impl->undoStack();
    return nullptr;
}

redo()

void UndoStack::redo ( )

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 68 of file undostack.cpp.

{
    return p_impl->undoStack()->redo();
}

References p_impl.

Referenced by TEST_F().

setUndoLimit()

void UndoStack::setUndoLimit ( int  limit )

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 78 of file undostack.cpp.

{
    return p_impl->undoStack()->setUndoLimit(limit);
}

References p_impl.

undo()

void UndoStack::undo ( )

overridevirtual

Implements ModelView::UndoStackInterface.

Definition at line 63 of file undostack.cpp.

{
    return p_impl->undoStack()->undo();
}

References p_impl.

Referenced by TEST_F().

Member Data Documentation

p_impl

std::unique_ptr<UndoStackImpl> ModelView::UndoStack::p_impl

private

Definition at line 55 of file undostack.h.

Referenced by beginMacro(), canRedo(), canUndo(), clear(), count(), endMacro(), execute(), index(), isActive(), redo(), setUndoLimit(), and undo().

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

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