PresentationPose.h File Reference

Stable object coordinates used by both raster and selection presentation. More...

#include <cstdint>
#include <optional>
#include <span>
#include "donner/base/EcsRegistry.h"
#include "donner/base/Transform.h"

Include dependency graph for PresentationPose.h:

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

Classes
struct	donner::editor::PresentationIdentity
	Identity of the document content consumed by one renderer capture. More...
struct	donner::editor::PresentationPose
	An object's absolute pose in the document, independent of mouse gestures. More...

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

Functions
bool	donner::editor::FinitePresentationTransform (const Transform2d &documentFromElement)
	Validate every coefficient of a presentation mapping.
bool	donner::editor::SamePresentationTransform (const Transform2d &lhs, const Transform2d &rhs)
	Compare two presentation mappings without changing their reference space.
std::optional< Transform2d >	donner::editor::ResolvePresentationTransform (std::span< const PresentationPose > captured, std::span< const PresentationPose > requested)
	Resolve one affine mapping shared by all selected participants.

Detailed Description

Stable object coordinates used by both raster and selection presentation.

Function Documentation

FinitePresentationTransform()

bool donner::editor::FinitePresentationTransform ( const Transform2d & documentFromElement )

nodiscard

Validate every coefficient of a presentation mapping.

Parameters

documentFromElement

Mapping to inspect.

ResolvePresentationTransform()

std::optional< Transform2d > donner::editor::ResolvePresentationTransform ( std::span< const PresentationPose > captured, std::span< const PresentationPose > requested )

nodiscard

Resolve one affine mapping shared by all selected participants.

Parameters

captured	Poses belonging to the raster and captured selection geometry.
requested	Absolute poses chosen by the current input transaction.

Returns

Captured-document to presented-document mapping, or nullopt when no common mapping exists.

SamePresentationTransform()

bool donner::editor::SamePresentationTransform ( const Transform2d & lhs, const Transform2d & rhs )

nodiscard

Compare two presentation mappings without changing their reference space.

Parameters

lhs	First mapping.
rhs	Second mapping in the same coordinate spaces.