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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef SNAPENUMS_H_
#define SNAPENUMS_H_
/*
* Authors:
* Diederik van Lierop <mail@diedenrezi.nl>
*
* Copyright (C) 2010 - 2012 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
namespace Inkscape {
/**
* enumerations of snap source types and snap target types.
*/
enum SnapSourceType { // When adding source types here, then also update Inkscape::SnapPreferences::source2target!
SNAPSOURCE_UNDEFINED = 0,
//-------------------------------------------------------------------
// Bbox points can be located at the edge of the stroke (for visual bboxes); they will therefore not snap
// to nodes because these are always located at the center of the stroke
SNAPSOURCE_BBOX_CATEGORY = 16, // will be used as a flag and must therefore be a power of two. Also,
// must be larger than the largest number of targets in a single group
SNAPSOURCE_BBOX_CORNER,
SNAPSOURCE_BBOX_MIDPOINT,
SNAPSOURCE_BBOX_EDGE_MIDPOINT,
// Allow PAGES to be moved as BBOX (enabled alignment snapping)
SNAPSOURCE_PAGE_CENTER,
SNAPSOURCE_PAGE_CORNER,
//-------------------------------------------------------------------
// For the same reason, nodes will not snap to bbox points
SNAPSOURCE_NODE_CATEGORY = 32, // will be used as a flag and must therefore be a power of two
SNAPSOURCE_NODE_SMOOTH, // Symmetrical nodes are also considered to be smooth; there's no dedicated type for symm. nodes
SNAPSOURCE_NODE_CUSP,
SNAPSOURCE_LINE_MIDPOINT,
SNAPSOURCE_PATH_INTERSECTION,
SNAPSOURCE_RECT_CORNER, // of a rectangle, so at the center of the stroke
SNAPSOURCE_CONVEX_HULL_CORNER,
SNAPSOURCE_ELLIPSE_QUADRANT_POINT,
SNAPSOURCE_NODE_HANDLE, // eg. nodes in the path editor, handles of stars or rectangles, etc. (tied to a stroke)
//-------------------------------------------------------------------
// Other points (e.g. guides) will snap to both bounding boxes and nodes
SNAPSOURCE_DATUMS_CATEGORY = 64, // will be used as a flag and must therefore be a power of two
SNAPSOURCE_GUIDE,
SNAPSOURCE_GUIDE_ORIGIN,
//-------------------------------------------------------------------
// Other points (e.g. gradient knots, image corners) will snap to both bounding boxes and nodes
SNAPSOURCE_OTHERS_CATEGORY = 128, // will be used as a flag and must therefore be a power of two
SNAPSOURCE_ROTATION_CENTER,
SNAPSOURCE_OBJECT_MIDPOINT, // midpoint of rectangles, ellipses, polygon, etc.
SNAPSOURCE_IMG_CORNER,
SNAPSOURCE_TEXT_ANCHOR,
SNAPSOURCE_OTHER_HANDLE, // eg. the handle of a gradient or of a connector (ie not being tied to a stroke)
SNAPSOURCE_GRID_PITCH, // eg. when pasting or alt-dragging in the selector tool; not really a snap source
//-------------------------------------------------------------------
// Alignment snapping
SNAPSOURCE_ALIGNMENT_CATEGORY = 256,
SNAPSOURCE_ALIGNMENT_BBOX_CORNER,
SNAPSOURCE_ALIGNMENT_BBOX_MIDPOINT,
SNAPSOURCE_ALIGNMENT_BBOX_EDGE_MIDPOINT,
SNAPSOURCE_ALIGNMENT_PAGE_CENTER,
SNAPSOURCE_ALIGNMENT_PAGE_CORNER,
SNAPSOURCE_ALIGNMENT_HANDLE
};
enum SnapTargetType {
SNAPTARGET_UNDEFINED = 0,
//-------------------------------------------------------------------
SNAPTARGET_BBOX_CATEGORY = 16, // will be used as a flag and must therefore be a power of two. Also,
// must be larger than the largest number of targets in a single group
// i.e > 15 because that's the number of targets in the "others" group
SNAPTARGET_BBOX_CORNER,
SNAPTARGET_BBOX_EDGE,
SNAPTARGET_BBOX_EDGE_MIDPOINT,
SNAPTARGET_BBOX_MIDPOINT,
//-------------------------------------------------------------------
SNAPTARGET_NODE_CATEGORY = 32, // will be used as a flag and must therefore be a power of two
SNAPTARGET_NODE_SMOOTH,
SNAPTARGET_NODE_CUSP,
SNAPTARGET_LINE_MIDPOINT,
SNAPTARGET_PATH, // If path targets are added here, then also add them to the list in findBestSnap()
SNAPTARGET_PATH_PERPENDICULAR,
SNAPTARGET_PATH_TANGENTIAL,
SNAPTARGET_PATH_INTERSECTION,
SNAPTARGET_PATH_GUIDE_INTERSECTION,
SNAPTARGET_PATH_CLIP,
SNAPTARGET_PATH_MASK,
SNAPTARGET_ELLIPSE_QUADRANT_POINT, // this corner is at the center of the stroke
SNAPTARGET_RECT_CORNER, // of a rectangle, so this corner is at the center of the stroke
//-------------------------------------------------------------------
SNAPTARGET_DATUMS_CATEGORY = 64, // will be used as a flag and must therefore be a power of two
SNAPTARGET_GRID,
SNAPTARGET_GRID_INTERSECTION,
SNAPTARGET_GRID_PERPENDICULAR,
SNAPTARGET_GUIDE,
SNAPTARGET_GUIDE_INTERSECTION,
SNAPTARGET_GUIDE_ORIGIN,
SNAPTARGET_GUIDE_PERPENDICULAR,
SNAPTARGET_GRID_GUIDE_INTERSECTION,
SNAPTARGET_PAGE_BORDER,
SNAPTARGET_PAGE_CENTER,
SNAPTARGET_PAGE_CORNER,
//-------------------------------------------------------------------
SNAPTARGET_OTHERS_CATEGORY = 128, // will be used as a flag and must therefore be a power of two
SNAPTARGET_OBJECT_MIDPOINT,
SNAPTARGET_IMG_CORNER,
SNAPTARGET_ROTATION_CENTER,
SNAPTARGET_TEXT_ANCHOR,
SNAPTARGET_TEXT_BASELINE,
SNAPTARGET_CONSTRAINED_ANGLE,
SNAPTARGET_CONSTRAINT,
//-------------------------------------------------------------------
// Alignment snapping
SNAPTARGET_ALIGNMENT_CATEGORY = 256, // will be used as a flag and must therefore be a power of two
SNAPTARGET_ALIGNMENT_BBOX_CORNER,
SNAPTARGET_ALIGNMENT_BBOX_MIDPOINT,
SNAPTARGET_ALIGNMENT_BBOX_EDGE_MIDPOINT,
SNAPTARGET_ALIGNMENT_PAGE_CENTER,
SNAPTARGET_ALIGNMENT_PAGE_CORNER,
SNAPTARGET_ALIGNMENT_HANDLE,
SNAPTARGET_ALIGNMENT_INTERSECTION,
//-------------------------------------------------------------------
// Distribution snapping
SNAPTARGET_DISTRIBUTION_CATEGORY = 512, // will be used as a flag and must therefore be a power of two
SNAPTARGET_DISTRIBUTION_X,
SNAPTARGET_DISTRIBUTION_Y,
SNAPTARGET_DISTRIBUTION_RIGHT,
SNAPTARGET_DISTRIBUTION_LEFT,
SNAPTARGET_DISTRIBUTION_UP,
SNAPTARGET_DISTRIBUTION_DOWN,
SNAPTARGET_DISTRIBUTION_XY,
//-------------------------------------------------------------------
SNAPTARGET_MAX_ENUM_VALUE
};
// simple snapping UI hides variety of choices behind a few categories
enum class SimpleSnap {
BBox = 0, // bounding box category
Nodes, // nodes, paths
Alignment, // alignment and distribution snaps
Rest, // all the rest
_MaxEnumValue
};
}
#endif /* SNAPENUMS_H_ */
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