103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
/*
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* ld-types.h
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*
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* This file is a part of logdiag.
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* Copyright 2010, 2011 Přemysl Eric Janouch
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*
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* See the file LICENSE for licensing information.
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*
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*/
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#ifndef __LD_TYPES_H__
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#define __LD_TYPES_H__
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G_BEGIN_DECLS
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#define LD_TYPE_POINT (ld_point_get_type ())
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#define LD_TYPE_POINT_ARRAY (ld_point_array_get_type ())
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#define LD_TYPE_RECTANGLE (ld_rectangle_get_type ())
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/**
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* LdPoint:
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* @x: the X coordinate.
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* @y: the Y coordinate.
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*
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* Defines a point.
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*/
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typedef struct
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{
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gdouble x, y;
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}
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LdPoint;
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GType ld_point_get_type (void) G_GNUC_CONST;
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LdPoint *ld_point_copy (const LdPoint *self);
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void ld_point_free (LdPoint *self);
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gdouble ld_point_distance (const LdPoint *self, gdouble x, gdouble y);
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/**
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* LdPointArray:
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* @points: an array of #LdPoint structures.
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* @length: count of points in @points.
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* @size: how many points can be stored in @points.
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*
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* Defines an array of points.
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*/
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typedef struct
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{
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LdPoint *points;
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guint length;
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guint size;
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}
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LdPointArray;
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GType ld_point_array_get_type (void) G_GNUC_CONST;
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LdPointArray *ld_point_array_new (void);
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LdPointArray *ld_point_array_sized_new (guint preallocated);
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LdPointArray *ld_point_array_copy (const LdPointArray *self);
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void ld_point_array_free (LdPointArray *self);
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void ld_point_array_insert (LdPointArray *self, LdPoint *points,
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gint pos, guint length);
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void ld_point_array_remove (LdPointArray *self, gint pos, guint length);
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void ld_point_array_set_size (LdPointArray *self, guint size);
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/**
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* LdRectangle:
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* @x: left-top X coordinate.
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* @y: left-top Y coordinate.
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* @width: width of the area, must be positive.
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* @height: height of the area, must be positive.
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*
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* Defines a rectangle.
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*/
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typedef struct
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{
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gdouble x, y;
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gdouble width, height;
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}
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LdRectangle;
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GType ld_rectangle_get_type (void) G_GNUC_CONST;
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LdRectangle *ld_rectangle_copy (const LdRectangle *self);
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void ld_rectangle_free (LdRectangle *self);
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gboolean ld_rectangle_intersects (const LdRectangle *self,
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const LdRectangle *rect);
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gboolean ld_rectangle_contains (const LdRectangle *self,
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const LdRectangle *rect);
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gboolean ld_rectangle_contains_point (const LdRectangle *self,
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const LdPoint *point);
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void ld_rectangle_extend (LdRectangle *self, gdouble border);
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G_END_DECLS
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#endif /* ! __LD_TYPES_H__ */
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