mirror of https://github.com/GNOME/gimp.git
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/* The GIMP -- an image manipulation program
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*
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* This file Copyright (C) 1999 Simon Budig
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __PATH_TOOL_H__
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#define __PATH_TOOL_H__
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/*
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* Every new curve-type has to have a parameter between 0 and 1, and
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* should go from a starting to a target point.
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*/
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/* Some defines... */
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#define PATH_TOOL_WIDTH 8
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#define PATH_TOOL_HALFWIDTH 4
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/* function prototypes */
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/* Small functions to determine coordinates, iterate over path/curve/segment */
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void path_segment_get_coordinates (PathSegment *,
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gdouble,
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gint *,
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gint *);
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void path_traverse_path (NPath *,
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PathTraverseFunc,
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CurveTraverseFunc,
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SegmentTraverseFunc,
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gpointer);
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void path_traverse_curve (NPath *,
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PathCurve *,
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CurveTraverseFunc,
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SegmentTraverseFunc,
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gpointer);
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void path_traverse_segment (NPath *,
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PathCurve *,
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PathSegment *,
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SegmentTraverseFunc,
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gpointer);
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gdouble path_locate_point (NPath *,
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PathCurve **,
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PathSegment **,
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gint,
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gint,
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gint,
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gint,
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gint);
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/* Tools to manipulate paths, curves, segments */
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PathCurve * path_add_curve (NPath *,
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gdouble,
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gdouble);
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PathSegment * path_append_segment (NPath *,
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PathCurve *,
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SegmentType,
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gdouble,
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gdouble);
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PathSegment * path_prepend_segment (NPath *,
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PathCurve *,
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SegmentType,
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gdouble,
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gdouble);
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PathSegment * path_split_segment (PathSegment *,
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gdouble);
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void path_join_curves (PathSegment *,
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PathSegment *);
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void path_flip_curve (PathCurve *);
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void path_free_path (NPath *);
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void path_free_curve (PathCurve *);
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void path_free_segment (PathSegment *);
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void path_delete_segment (PathSegment *);
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void path_print (NPath *);
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void path_offset_active (NPath *, gdouble, gdouble);
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void path_set_flags (GimpPathTool *,
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NPath *,
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PathCurve *,
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PathSegment *,
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guint32,
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guint32);
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gdouble gimp_path_tool_on_curve (GimpPathTool *, gint, gint, gint,
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NPath**, PathCurve**, PathSegment**);
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gboolean gimp_path_tool_on_anchors (GimpPathTool *, gint, gint, gint,
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NPath**, PathCurve**, PathSegment**);
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gint gimp_path_tool_on_handles (GimpPathTool *, gint, gint, gint,
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NPath **, PathCurve **, PathSegment **);
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gint path_tool_cursor_position (NPath *path,
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gdouble x,
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gdouble y,
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gint halfwidth,
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NPath **pathP,
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PathCurve **curveP,
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PathSegment **segmentP,
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gdouble *positionP,
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gint *handle_idP);
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/* High level image-manipulation functions */
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void path_stroke (GimpPathTool *,
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NPath *);
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void path_to_selection (GimpPathTool *,
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NPath *);
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#endif /* __PATH_TOOL_H__ */
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