/usr/include/libgoffice-0.8/goffice/utils/go-geometry.h is in libgoffice-0.8-dev 0.8.17-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* go-geometry.h : A collection of geometry related functions.
*
* Copyright (C) 2005 Emmanuel Pacaud (emmanuel.pacaud@univ-poitiers.fr)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifndef GO_GEOMETRY_H
#define GO_GEOMETRY_H
#include <goffice/goffice.h>
G_BEGIN_DECLS
#define GO_GEOMETRY_ANGLE_TOLERANCE 1E-3
typedef enum {
GO_SIDE_LEFT = 1 << 0,
GO_SIDE_RIGHT = 1 << 1,
GO_SIDE_LEFT_RIGHT = 3 << 0,
GO_SIDE_TOP = 1 << 2,
GO_SIDE_BOTTOM = 1 << 3,
GO_SIDE_TOP_BOTTOM = 3 << 2,
GO_SIDE_AUTO = 15
} GOGeometrySide;
typedef enum {
GO_DIRECTION_UP = 0,
GO_DIRECTION_DOWN = 1,
GO_DIRECTION_LEFT = 2,
GO_DIRECTION_RIGHT = 3,
GO_DIRECTION_NONE = 4
} GODirection;
typedef enum {
GO_ROTATE_NONE = 0,
GO_ROTATE_COUNTERCLOCKWISE = 1,
GO_ROTATE_UPSIDEDOWN = 2,
GO_ROTATE_CLOCKWISE = 3,
GO_ROTATE_FREE = 4
} GOGeometryRotationType;
typedef struct {
double x,y; /* Center */
double w,h; /* Edges */
double alpha; /* Angle from x axis to w edge, in radians */
} GOGeometryOBR;
typedef struct _GogViewAllocation GOGeometryAABR;
void go_geometry_cartesian_to_polar (double x, double y, double *rho, double *theta);
double go_geometry_point_to_segment (double xp, double yp, double xs, double ys, double w, double h);
void go_geometry_AABR_add (GOGeometryAABR *aabr0, GOGeometryAABR const *aabr1);
void go_geometry_OBR_to_AABR (GOGeometryOBR const *obr, GOGeometryAABR *aabr);
gboolean go_geometry_test_OBR_overlap (GOGeometryOBR const *obr0, GOGeometryOBR const *obr1);
GOGeometryRotationType go_geometry_get_rotation_type (double alpha);
GOGeometrySide go_geometry_calc_label_anchor (GOGeometryOBR *obr, double alpha);
GOGeometrySide go_geometry_calc_label_position (GOGeometryOBR *obr, double alpha, double offset,
GOGeometrySide side, GOGeometrySide anchor);
#define GO_TYPE_DIRECTION (go_direction_get_type())
GType go_direction_get_type (void) G_GNUC_CONST;
gboolean go_direction_is_horizontal (GODirection d);
gboolean go_direction_is_forward (GODirection d);
char const *go_direction_get_name (GODirection d);
G_END_DECLS
#endif /* GO_GEOMETRY_H */
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