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Diffstat (limited to '')
| -rw-r--r-- | src/snap-enums.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/snap-enums.h b/src/snap-enums.h new file mode 100644 index 0000000..321963b --- /dev/null +++ b/src/snap-enums.h @@ -0,0 +1,105 @@ +// 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, + //------------------------------------------------------------------- + // 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 +}; + +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_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, + //------------------------------------------------------------------- + SNAPTARGET_MAX_ENUM_VALUE +}; + +} +#endif /* SNAPENUMS_H_ */ |