UndoTimeline.h File Reference

#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include "donner/base/Transform.h"
#include "donner/editor/AttributeWriteback.h"
#include "donner/svg/SVGElement.h"

Include dependency graph for UndoTimeline.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	donner::editor::UndoSnapshot
	Captured state of an element at a point in time. More...
struct	donner::editor::UndoEntry
	A single entry in the non-destructive undo timeline. More...
class	donner::editor::UndoTimeline
	Non-destructive chronological undo timeline. More...

Namespaces
namespace	donner
	Top-level Donner namespace, which is split into different sub-namespaces such as donner::svg and donner::css.

Functions
UndoSnapshot	donner::editor::captureTransformSnapshot (const svg::SVGElement &element)
	Capture the current transform of an SVGElement as an undo snapshot.
UndoSnapshot	donner::editor::captureDocumentSourceSnapshot (const svg::SVGElement &anchorElement, std::string_view source)
	Capture the full SVG source text for a structural undo snapshot.
UndoSnapshot	donner::editor::captureAttributeSnapshot (const svg::SVGElement &element, std::string_view attributeName, std::optional< std::string > attributeValue)
	Capture one attribute's value on an element for an attribute undo snapshot.
void	donner::editor::applySnapshot (const UndoSnapshot &snapshot)
	Apply a previously captured snapshot, including grouped extra element snapshots.

Function Documentation

captureAttributeSnapshot()

UndoSnapshot donner::editor::captureAttributeSnapshot	(	const svg::SVGElement &	element,
		std::string_view	attributeName,
		std::optional< std::string >	attributeValue )

Capture one attribute's value on an element for an attribute undo snapshot.

Parameters

element	Element that owns the attribute.
attributeName	Attribute to restore.
attributeValue	Value to restore, or std::nullopt to remove the attribute.