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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
/**
* SECTION:ld-types
* @short_description: Simple data types.
*
* #LdPoint defines coordinates of a point.
*
* #LdRectangle defines the position and size of a rectangle.
*/
#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 (LdPoint *self, gdouble x, gdouble y);
/**
* LdPointArray:
* @points: An array of #LdPoint structures.
* @num_points: Count of points in @points.
*
* Moves quickly.
*/
struct _LdPointArray
{
LdPoint *points;
gint num_points;
};
GType ld_point_array_get_type (void) G_GNUC_CONST;
LdPointArray *ld_point_array_new (gint num_points);
LdPointArray *ld_point_array_copy (const LdPointArray *self);
void ld_point_array_free (LdPointArray *self);
/**
* 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_contains (LdRectangle *self, gdouble x, gdouble y);
gboolean ld_rectangle_intersects (LdRectangle *self, LdRectangle *rect);
void ld_rectangle_extend (LdRectangle *self, gdouble border);
G_END_DECLS
#endif /* ! __LD_TYPES_H__ */
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