gtk2/gsk/gskroundedrect.h
Emmanuele Bassi def700739d Use a single compilation symbol
We use a compilation symbol in our build to allow the inclusion of
specific headers while building GTK, to avoid the need to include only
the global header.

Each namespace has its own compilation symbol because we used to have
different libraries, and strict symbol visibility between libraries;
now that we have a single library, and we can use private symbols across
namespaces while building GTK, we should have a single compilation
symbol, and simplify the build rules.
2019-11-27 13:33:43 +00:00

115 lines
5.4 KiB
C

/* GSK - The GTK Scene Kit
*
* Copyright 2016 Endless
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GSK_ROUNDED_RECT_H__
#define __GSK_ROUNDED_RECT_H__
#if !defined (__GSK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gsk/gsk.h> can be included directly."
#endif
#include <gsk/gsktypes.h>
G_BEGIN_DECLS
/**
* GSK_ROUNDED_RECT_INIT:
* @_x: the X coordinate of the origin
* @_y: the Y coordinate of the origin
* @_w: the width
* @_h: the height
*
* Initializes a #GskRoundedRect when declaring it.
* All corner sizes will be initialized to 0.
*/
#define GSK_ROUNDED_RECT_INIT(_x,_y,_w,_h) (GskRoundedRect) { .bounds = GRAPHENE_RECT_INIT(_x,_y,_w,_h), \
.corner = { \
GRAPHENE_SIZE_INIT(0, 0),\
GRAPHENE_SIZE_INIT(0, 0),\
GRAPHENE_SIZE_INIT(0, 0),\
GRAPHENE_SIZE_INIT(0, 0),\
}}
/**
* GskRoundedRect:
* @bounds: the bounds of the rectangle
* @corner: the size of the 4 rounded corners
*
* A rectangular region with rounded corners.
*
* Application code should normalize rectangles using gsk_rounded_rect_normalize();
* this function will ensure that the bounds of the rectanlge are normalized
* and ensure that the corner values are positive and the corners do not overlap.
* All functions taking a #GskRoundedRect as an argument will internally operate on
* a normalized copy; all functions returning a #GskRoundedRect will always return
* a normalized one.
*/
typedef struct _GskRoundedRect GskRoundedRect;
struct _GskRoundedRect
{
graphene_rect_t bounds;
graphene_size_t corner[4];
};
GDK_AVAILABLE_IN_ALL
GskRoundedRect * gsk_rounded_rect_init (GskRoundedRect *self,
const graphene_rect_t *bounds,
const graphene_size_t *top_left,
const graphene_size_t *top_right,
const graphene_size_t *bottom_right,
const graphene_size_t *bottom_left);
GDK_AVAILABLE_IN_ALL
GskRoundedRect * gsk_rounded_rect_init_copy (GskRoundedRect *self,
const GskRoundedRect *src);
GDK_AVAILABLE_IN_ALL
GskRoundedRect * gsk_rounded_rect_init_from_rect (GskRoundedRect *self,
const graphene_rect_t *bounds,
float radius);
GDK_AVAILABLE_IN_ALL
GskRoundedRect * gsk_rounded_rect_normalize (GskRoundedRect *self);
GDK_AVAILABLE_IN_ALL
GskRoundedRect * gsk_rounded_rect_offset (GskRoundedRect *self,
float dx,
float dy);
GDK_AVAILABLE_IN_ALL
GskRoundedRect * gsk_rounded_rect_shrink (GskRoundedRect *self,
float top,
float right,
float bottom,
float left);
GDK_AVAILABLE_IN_ALL
gboolean gsk_rounded_rect_is_rectilinear (const GskRoundedRect *self);
GDK_AVAILABLE_IN_ALL
gboolean gsk_rounded_rect_contains_point (const GskRoundedRect *self,
const graphene_point_t *point);
GDK_AVAILABLE_IN_ALL
gboolean gsk_rounded_rect_contains_rect (const GskRoundedRect *self,
const graphene_rect_t *rect);
GDK_AVAILABLE_IN_ALL
gboolean gsk_rounded_rect_intersects_rect (const GskRoundedRect *self,
const graphene_rect_t *rect);
G_END_DECLS
#endif /* __GSK_ROUNDED_RECT_H__ */