object-snapper.h revision 82dbb1c3c36a5dfb93fe980ca96bd85d71066db5
#ifndef SEEN_OBJECT_SNAPPER_H
#define SEEN_OBJECT_SNAPPER_H
/**
* \file object-snapper.h
* \brief Snapping things to objects.
*
* Authors:
* Carl Hetherington <inkscape@carlh.net>
* Diederik van Lierop <mail@diedenrezi.nl>
*
* Copyright (C) 2005 - 2008 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "snapper.h"
#include "sp-path.h"
#include "splivarot.h"
struct SPNamedView;
struct SPItem;
struct SPObject;
{
{
~SnapCandidate();
bool clip_or_mask; // If true, then item refers to a clipping path or a mask
/* To find out the absolute position of a clipping path or mask, we not only need to know
* the transformation of the clipping path or mask itself, but also the transformation of
* the object to which the clip or mask is being applied; that transformation is stored here
*/
};
{
~ObjectSnapper();
enum DimensionToSnap {
GUIDE_TRANSL_SNAP_X, // For snapping a vertical guide (normal in the X-direction) to objects,
GUIDE_TRANSL_SNAP_Y, // For snapping a horizontal guide (normal in the Y-direction) to objects
ANGLED_GUIDE_TRANSL_SNAP, // For snapping an angled guide, while translating it accross the desktop
ANGLED_GUIDE_ROT_SNAP, // For snapping an angled guide, while rotating it around some pivot point
TRANSL_SNAP_XY}; // All other cases; for snapping to objects, other than guides
void setSnapToItemNode(bool s) {_snap_to_itemnode = s;}
bool getSnapToItemNode() const {return _snap_to_itemnode;}
void setSnapToItemPath(bool s) {_snap_to_itempath = s;}
bool getSnapToItemPath() const {return _snap_to_itempath;}
void setSnapToBBoxNode(bool s) {_snap_to_bboxnode = s;}
bool getSnapToBBoxNode() const {return _snap_to_bboxnode;}
void setSnapToBBoxPath(bool s) {_snap_to_bboxpath = s;}
bool getSnapToBBoxPath() const {return _snap_to_bboxpath;}
void setSnapToPageBorder(bool s) {_snap_to_page_border = s;}
bool getSnapToPageBorder() const {return _snap_to_page_border;}
void setIncludeItemCenter(bool s) {_include_item_center = s;}
bool getIncludeItemCenter() const {return _include_item_center;}
bool ThisSnapperMightSnap() const;
bool GuidesMightSnap() const;
bool const &first_point,
bool const &first_point,
ConstraintLine const &c,
//store some lists of candidates, points and paths, so we don't have to rebuild them for each point we want to snap
bool const &first_point,
bool const _clip_or_mask,
bool const &first_point,
bool const &first_point) const;
bool const &first_point,
SPPath const *selected_path) const;
bool const &first_point,
ConstraintLine const &c) const;
bool isUnselectedNode(NR::Point const &point, std::vector<NR::Point> const *unselected_nodes) const;
bool const &first_point) const;
void _clear_paths() const;
NArtBpath const* _getBorderBPath() const;
bool _snap_to_itemnode;
bool _snap_to_itempath;
bool _snap_to_bboxnode;
bool _snap_to_bboxpath;
bool _snap_to_page_border;
//If enabled, then bbox corners will only snap to bboxes,
//and nodes will only snap to nodes and paths. We will not
//snap bbox corners to nodes, or nodes to bboxes.
//(snapping to grids and guides is not affected by this)
bool _strict_snapping;
bool _include_item_center;
};
}
#endif