Olympe::GraphCommand Class Reference

Abstract base class for all graph modification commands. More...

#include <GraphCommand.h>

Inheritance diagram for Olympe::GraphCommand:

Public Member Functions
virtual	~GraphCommand ()=default
virtual bool	Execute ()=0
	Execute the command (forward operation)
virtual bool	Undo ()=0
	Undo the command (reverse operation)
virtual std::string	GetDescription () const =0
	Get a human-readable description of the command.
virtual bool	CanMergeWith (const GraphCommand &other) const
	Check if this command can be merged with another Used for combining consecutive similar commands (e.g., multiple position changes)
virtual bool	MergeWith (const GraphCommand &other)
	Merge this command with another Called only if CanMergeWith returned true.

Detailed Description

Abstract base class for all graph modification commands.

Implements the Command Pattern for undo/redo functionality. Each command represents a single, undoable action on the graph.

Definition at line 22 of file GraphCommand.h.

Constructor & Destructor Documentation

~GraphCommand()

virtual Olympe::GraphCommand::~GraphCommand ( )

virtualdefault

Member Function Documentation

CanMergeWith()

virtual bool Olympe::GraphCommand::CanMergeWith ( const GraphCommand &  other ) const

inlinevirtual

Check if this command can be merged with another Used for combining consecutive similar commands (e.g., multiple position changes)

Parameters

other

The other command to potentially merge with

Returns

true if commands can be merged

Definition at line 51 of file GraphCommand.h.

Execute()

virtual bool Olympe::GraphCommand::Execute ( )

pure virtual

Execute the command (forward operation)

Returns

true if execution succeeded

Implemented in Olympe::CopyNodesCommand, Olympe::PasteNodesCommand, and Olympe::DuplicateNodeCommand.

GetDescription()

virtual std::string Olympe::GraphCommand::GetDescription ( ) const

pure virtual

Get a human-readable description of the command.

Returns

Command description for UI display (e.g., "Create Action Node")

Implemented in Olympe::CopyNodesCommand, Olympe::PasteNodesCommand, and Olympe::DuplicateNodeCommand.

Referenced by Olympe::CommandHistory::GetUndoDescription().

Here is the caller graph for this function:

MergeWith()

virtual bool Olympe::GraphCommand::MergeWith ( const GraphCommand &  other )

inlinevirtual

Merge this command with another Called only if CanMergeWith returned true.

Parameters

other

The command to merge with

Returns

true if merge succeeded

Definition at line 62 of file GraphCommand.h.

Undo()

virtual bool Olympe::GraphCommand::Undo ( )

pure virtual

Undo the command (reverse operation)

Returns

true if undo succeeded

Implemented in Olympe::CopyNodesCommand, Olympe::PasteNodesCommand, and Olympe::DuplicateNodeCommand.

---

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

• Source/BlueprintEditor/Commands/GraphCommand.h