DekiEditor::Command Class Reference

Base interface for undoable commands. More...

#include <Command.h>

Inherited by DekiEditor::CompoundCommand.

Public Member Functions
virtual	~Command ()=default
virtual std::string	GetDescription () const =0
	Human-readable description for UI display.
virtual void	Execute ()=0
	Execute the command.
virtual void	Undo ()=0
	Undo the command.
virtual void	Redo ()
	Redo the command (default: calls Execute).
virtual bool	CanMerge (const Command *other) const
	Check if this command can merge with another.
virtual void	Merge (const Command *other)
	Merge another command into this one.
virtual bool	ReferencesAny (const DeadMemory &dead) const
	Report whether this command holds a raw pointer to anything in dead.

Detailed Description

Base interface for undoable commands.

Constructor & Destructor Documentation

~Command()

virtual DekiEditor::Command::~Command ( )

virtualdefault

Member Function Documentation

GetDescription()

virtual std::string DekiEditor::Command::GetDescription ( ) const

pure virtual

Human-readable description for UI display.

Implemented in DekiEditor::CompoundCommand.

Execute()

virtual void DekiEditor::Command::Execute ( )

pure virtual

Execute the command.

Implemented in DekiEditor::CompoundCommand.

Undo()

virtual void DekiEditor::Command::Undo ( )

pure virtual

Undo the command.

Implemented in DekiEditor::CompoundCommand.

Redo()

virtual void DekiEditor::Command::Redo ( )

inlinevirtual

Redo the command (default: calls Execute).

Reimplemented in DekiEditor::CompoundCommand.

CanMerge()

virtual bool DekiEditor::Command::CanMerge ( const Command * other ) const

inlinevirtual

Check if this command can merge with another.

Merge()

virtual void DekiEditor::Command::Merge ( const Command * other )

inlinevirtual

Merge another command into this one.

ReferencesAny()

virtual bool DekiEditor::Command::ReferencesAny ( const DeadMemory & dead ) const

inlinevirtual

Report whether this command holds a raw pointer to anything in dead.

CommandHistory calls this when the scene is about to free objects, and discards any command that answers true — running Undo()/Redo() on a command whose target has been freed is a use-after-free.

The default is false, which is correct for commands that address their target by value or by id. Any command storing a DekiObject*, DekiComponent*, or Scene* MUST override this; see the implementations in src/core/commands/ for the pattern.

Reimplemented in DekiEditor::CompoundCommand.

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

• deki-editor/include/deki-editor/Command.h