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