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/* GTK - The GIMP Toolkit
* Copyright (C) 2019 Benjamin Otte <otte@gnome.org>
*
* 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/>.
*/
#pragma once
#include "gtkcsstypesprivate.h"
#include "gtktypes.h"
G_BEGIN_DECLS
/*
* The idea behind this file is that it provides an on-stack representation
* for all the CSS boxes one can have to deal with in the CSS box model so that
* higher level code can use convenient and readable function calls instead of
* doing complicated math.
*
* However, because computing all those rectangles is prohibitively expensive,
* this struct does it lazily.
* And then we inline all the code, so that whenever we use this struct, the
* compiler can optimize out the parts we don't need in that particular use
* case.
*/
typedef struct _GtkCssBoxes GtkCssBoxes;
/* ahem...
* Let's extend GtkCssArea a bit here. */
#define GTK_CSS_AREA_MARGIN_BOX (3)
#define GTK_CSS_AREA_OUTLINE_BOX (4)
#define GTK_CSS_AREA_N_BOXES (5)
struct _GtkCssBoxes
{
GtkCssStyle *style;
GskRoundedRect box[GTK_CSS_AREA_N_BOXES];
gboolean has_rect[GTK_CSS_AREA_N_BOXES]; /* TRUE if we have initialized just the bounds rect */
gboolean has_box[GTK_CSS_AREA_N_BOXES]; /* TRUE if we have initialized the whole box */
};
static inline void gtk_css_boxes_init (GtkCssBoxes *boxes,
GtkWidget *widget);
static inline void gtk_css_boxes_init_content_box (GtkCssBoxes *boxes,
GtkCssStyle *style,
double x,
double y,
double width,
double height);
static inline void gtk_css_boxes_init_border_box (GtkCssBoxes *boxes,
GtkCssStyle *style,
double x,
double y,
double width,
double height);
static inline const graphene_rect_t * gtk_css_boxes_get_rect (GtkCssBoxes *boxes,
GtkCssArea area);
static inline const graphene_rect_t * gtk_css_boxes_get_margin_rect (GtkCssBoxes *boxes);
static inline const graphene_rect_t * gtk_css_boxes_get_border_rect (GtkCssBoxes *boxes);
static inline const graphene_rect_t * gtk_css_boxes_get_padding_rect (GtkCssBoxes *boxes);
static inline const graphene_rect_t * gtk_css_boxes_get_content_rect (GtkCssBoxes *boxes);
static inline const graphene_rect_t * gtk_css_boxes_get_outline_rect (GtkCssBoxes *boxes);
static inline const GskRoundedRect * gtk_css_boxes_get_box (GtkCssBoxes *boxes,
GtkCssArea area);
static inline const GskRoundedRect * gtk_css_boxes_get_border_box (GtkCssBoxes *boxes);
static inline const GskRoundedRect * gtk_css_boxes_get_padding_box (GtkCssBoxes *boxes);
static inline const GskRoundedRect * gtk_css_boxes_get_content_box (GtkCssBoxes *boxes);
static inline const GskRoundedRect * gtk_css_boxes_get_outline_box (GtkCssBoxes *boxes);
G_END_DECLS
/* and finally include the actual code for the functions */
#include "gtkcssboxesimplprivate.h"
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