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gtk2/gtk/gtkroundedbox.c
Benjamin Otte 4d9eedafcd roundedbox: Add gtk_rounded_boxes_init_for_style() 
Instead of making people intiialize a rectangle and then applying border
radius manually, provide a constructor that does it for them.
While doing that, also allow people to instead request the padding box
or the content box.

Refactor all relevant code to use this new constructor.
2016-12-20 18:01:12 +01:00

626 lines
25 KiB
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/* GTK - The GIMP Toolkit
* Copyright (C) 2011 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/>.
*/
#include "config.h"
#include "gtkroundedboxprivate.h"
#include "gtkcsscornervalueprivate.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkcsstypesprivate.h"
#include "gtkstylecontextprivate.h"
#include <string.h>
/**
* _gtk_rounded_box_init_rect:
* @box: box to initialize
* @x: x coordinate of box
* @y: y coordinate of box
* @width: width of box
* @height: height of box
*
* Initializes the given @box to represent the given rectangle.
* The
**/
void
_gtk_rounded_box_init_rect (GskRoundedRect *box,
double x,
double y,
double width,
double height)
{
memset (box, 0, sizeof (GskRoundedRect));
box->bounds.origin.x = x;
box->bounds.origin.y = y;
box->bounds.size.width = width;
box->bounds.size.height = height;
}
/* clamp border radius, following CSS specs */
static void
gtk_rounded_box_clamp_border_radius (GskRoundedRect *box)
{
gdouble factor = 1.0;
gdouble corners;
corners = box->corner[GSK_CORNER_TOP_LEFT].width + box->corner[GSK_CORNER_TOP_RIGHT].width;
if (corners != 0)
factor = MIN (factor, box->bounds.size.width / corners);
corners = box->corner[GSK_CORNER_TOP_RIGHT].height + box->corner[GSK_CORNER_BOTTOM_RIGHT].height;
if (corners != 0)
factor = MIN (factor, box->bounds.size.height / corners);
corners = box->corner[GSK_CORNER_BOTTOM_RIGHT].width + box->corner[GSK_CORNER_BOTTOM_LEFT].width;
if (corners != 0)
factor = MIN (factor, box->bounds.size.width / corners);
corners = box->corner[GSK_CORNER_TOP_LEFT].height + box->corner[GSK_CORNER_BOTTOM_LEFT].height;
if (corners != 0)
factor = MIN (factor, box->bounds.size.height / corners);
box->corner[GSK_CORNER_TOP_LEFT].width *= factor;
box->corner[GSK_CORNER_TOP_LEFT].height *= factor;
box->corner[GSK_CORNER_TOP_RIGHT].width *= factor;
box->corner[GSK_CORNER_TOP_RIGHT].height *= factor;
box->corner[GSK_CORNER_BOTTOM_RIGHT].width *= factor;
box->corner[GSK_CORNER_BOTTOM_RIGHT].height *= factor;
box->corner[GSK_CORNER_BOTTOM_LEFT].width *= factor;
box->corner[GSK_CORNER_BOTTOM_LEFT].height *= factor;
}
static void
_gtk_rounded_box_apply_border_radius (GskRoundedRect *box,
GtkCssValue **corner)
{
if (corner[GSK_CORNER_TOP_LEFT])
{
box->corner[GSK_CORNER_TOP_LEFT].width = _gtk_css_corner_value_get_x (corner[GSK_CORNER_TOP_LEFT],
box->bounds.size.width);
box->corner[GSK_CORNER_TOP_LEFT].height = _gtk_css_corner_value_get_y (corner[GSK_CORNER_TOP_LEFT],
box->bounds.size.height);
}
if (corner[GSK_CORNER_TOP_RIGHT])
{
box->corner[GSK_CORNER_TOP_RIGHT].width = _gtk_css_corner_value_get_x (corner[GSK_CORNER_TOP_RIGHT],
box->bounds.size.width);
box->corner[GSK_CORNER_TOP_RIGHT].height = _gtk_css_corner_value_get_y (corner[GSK_CORNER_TOP_RIGHT],
box->bounds.size.height);
}
if (corner[GSK_CORNER_BOTTOM_RIGHT])
{
box->corner[GSK_CORNER_BOTTOM_RIGHT].width = _gtk_css_corner_value_get_x (corner[GSK_CORNER_BOTTOM_RIGHT],
box->bounds.size.width);
box->corner[GSK_CORNER_BOTTOM_RIGHT].height = _gtk_css_corner_value_get_y (corner[GSK_CORNER_BOTTOM_RIGHT],
box->bounds.size.height);
}
if (corner[GSK_CORNER_BOTTOM_LEFT])
{
box->corner[GSK_CORNER_BOTTOM_LEFT].width = _gtk_css_corner_value_get_x (corner[GSK_CORNER_BOTTOM_LEFT],
box->bounds.size.width);
box->corner[GSK_CORNER_BOTTOM_LEFT].height = _gtk_css_corner_value_get_y (corner[GSK_CORNER_BOTTOM_LEFT],
box->bounds.size.height);
}
gtk_rounded_box_clamp_border_radius (box);
}
void
gtk_rounded_boxes_init_for_style (GskRoundedRect *border_box,
GskRoundedRect *padding_box,
GskRoundedRect *content_box,
GtkCssStyle *style,
double x,
double y,
double width,
double height)
{
GtkCssValue *corner[4];
GskRoundedRect box;
gsk_rounded_rect_init_from_rect (&box, &GRAPHENE_RECT_INIT (x, y, width, height), 0);
corner[GSK_CORNER_TOP_LEFT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_LEFT_RADIUS);
corner[GSK_CORNER_TOP_RIGHT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_RIGHT_RADIUS);
corner[GSK_CORNER_BOTTOM_LEFT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_LEFT_RADIUS);
corner[GSK_CORNER_BOTTOM_RIGHT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_RIGHT_RADIUS);
_gtk_rounded_box_apply_border_radius (&box, corner);
if (border_box)
gsk_rounded_rect_init_copy (border_box, &box);
if (padding_box || content_box)
{
gsk_rounded_rect_shrink (&box,
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_WIDTH), 100),
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_WIDTH), 100),
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_WIDTH), 100),
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_WIDTH), 100));
if (padding_box)
gsk_rounded_rect_init_copy (padding_box, &box);
if (content_box)
{
gsk_rounded_rect_shrink (&box,
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_PADDING_TOP), 100),
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_PADDING_RIGHT), 100),
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_PADDING_BOTTOM), 100),
_gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_PADDING_LEFT), 100));
gsk_rounded_rect_init_copy (content_box, &box);
}
}
}
void
_gtk_rounded_box_apply_outline_radius_for_style (GskRoundedRect *box,
GtkCssStyle *style)
{
GtkCssValue *corner[4];
corner[GSK_CORNER_TOP_LEFT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_TOP_LEFT_RADIUS);
corner[GSK_CORNER_TOP_RIGHT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_TOP_RIGHT_RADIUS);
corner[GSK_CORNER_BOTTOM_LEFT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_BOTTOM_LEFT_RADIUS);
corner[GSK_CORNER_BOTTOM_RIGHT] = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_BOTTOM_RIGHT_RADIUS);
_gtk_rounded_box_apply_border_radius (box, corner);
}
typedef struct {
double angle1;
double angle2;
gboolean negative;
} Arc;
static inline guint
mem_hash (gconstpointer v, gint len)
{
const signed char *p;
const signed char *end;
guint32 h = 5381;
p = v;
end = p + len;
for (; p < end; p++)
h = (h << 5) + h + *p;
return h;
}
static guint
arc_path_hash (Arc *arc)
{
return mem_hash ((gconstpointer)arc, sizeof (Arc));
}
static gboolean
arc_path_equal (Arc *arc1,
Arc *arc2)
{
return arc1->angle1 == arc2->angle1 &&
arc1->angle2 == arc2->angle2 &&
arc1->negative == arc2->negative;
}
/* We need the path to start with a line-to */
static cairo_path_t *
fixup_path (cairo_path_t *path)
{
cairo_path_data_t *data;
data = &path->data[0];
if (data->header.type == CAIRO_PATH_MOVE_TO)
data->header.type = CAIRO_PATH_LINE_TO;
return path;
}
static void
append_arc (cairo_t *cr, double angle1, double angle2, gboolean negative)
{
static GHashTable *arc_path_cache;
Arc key;
cairo_path_t *arc;
memset (&key, 0, sizeof (Arc));
key.angle1 = angle1;
key.angle2 = angle2;
key.negative = negative;
if (arc_path_cache == NULL)
arc_path_cache = g_hash_table_new_full ((GHashFunc)arc_path_hash,
(GEqualFunc)arc_path_equal,
g_free, (GDestroyNotify)cairo_path_destroy);
arc = g_hash_table_lookup (arc_path_cache, &key);
if (arc == NULL)
{
cairo_surface_t *surface;
cairo_t *tmp;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1);
tmp = cairo_create (surface);
if (negative)
cairo_arc_negative (tmp, 0.0, 0.0, 1.0, angle1, angle2);
else
cairo_arc (tmp, 0.0, 0.0, 1.0, angle1, angle2);
arc = fixup_path (cairo_copy_path (tmp));
g_hash_table_insert (arc_path_cache, g_memdup (&key, sizeof (key)), arc);
cairo_destroy (tmp);
cairo_surface_destroy (surface);
}
cairo_append_path (cr, arc);
}
static void
_cairo_ellipsis (cairo_t *cr,
double xc, double yc,
double xradius, double yradius,
double angle1, double angle2)
{
cairo_matrix_t save;
if (xradius <= 0.0 || yradius <= 0.0)
{
cairo_line_to (cr, xc, yc);
return;
}
cairo_get_matrix (cr, &save);
cairo_translate (cr, xc, yc);
cairo_scale (cr, xradius, yradius);
append_arc (cr, angle1, angle2, FALSE);
cairo_set_matrix (cr, &save);
}
static void
_cairo_ellipsis_negative (cairo_t *cr,
double xc, double yc,
double xradius, double yradius,
double angle1, double angle2)
{
cairo_matrix_t save;
if (xradius <= 0.0 || yradius <= 0.0)
{
cairo_line_to (cr, xc, yc);
return;
}
cairo_get_matrix (cr, &save);
cairo_translate (cr, xc, yc);
cairo_scale (cr, xradius, yradius);
append_arc (cr, angle1, angle2, TRUE);
cairo_set_matrix (cr, &save);
}
double
_gtk_rounded_box_guess_length (const GskRoundedRect *box,
GtkCssSide side)
{
double length;
GtkCssSide before, after;
before = side;
after = (side + 1) % 4;
if (side & 1)
length = box->bounds.size.height
- box->corner[before].height
- box->corner[after].height;
else
length = box->bounds.size.width
- box->corner[before].width
- box->corner[after].width;
length += G_PI * 0.125 * (box->corner[before].width
+ box->corner[before].height
+ box->corner[after].width
+ box->corner[after].height);
return length;
}
void
_gtk_rounded_box_path_side (const GskRoundedRect *box,
cairo_t *cr,
GtkCssSide side)
{
switch (side)
{
case GTK_CSS_TOP:
_cairo_ellipsis (cr,
box->bounds.origin.x + box->corner[GSK_CORNER_TOP_LEFT].width,
box->bounds.origin.y + box->corner[GSK_CORNER_TOP_LEFT].height,
box->corner[GSK_CORNER_TOP_LEFT].width,
box->corner[GSK_CORNER_TOP_LEFT].height,
5 * G_PI_4, 3 * G_PI_2);
_cairo_ellipsis (cr,
box->bounds.origin.x + box->bounds.size.width - box->corner[GSK_CORNER_TOP_RIGHT].width,
box->bounds.origin.y + box->corner[GSK_CORNER_TOP_RIGHT].height,
box->corner[GSK_CORNER_TOP_RIGHT].width,
box->corner[GSK_CORNER_TOP_RIGHT].height,
- G_PI_2, -G_PI_4);
break;
case GTK_CSS_RIGHT:
_cairo_ellipsis (cr,
box->bounds.origin.x + box->bounds.size.width - box->corner[GSK_CORNER_TOP_RIGHT].width,
box->bounds.origin.y + box->corner[GSK_CORNER_TOP_RIGHT].height,
box->corner[GSK_CORNER_TOP_RIGHT].width,
box->corner[GSK_CORNER_TOP_RIGHT].height,
- G_PI_4, 0);
_cairo_ellipsis (cr,
box->bounds.origin.x + box->bounds.size.width - box->corner[GSK_CORNER_BOTTOM_RIGHT].width,
box->bounds.origin.y + box->bounds.size.height - box->corner[GSK_CORNER_BOTTOM_RIGHT].height,
box->corner[GSK_CORNER_BOTTOM_RIGHT].width,
box->corner[GSK_CORNER_BOTTOM_RIGHT].height,
0, G_PI_4);
break;
case GTK_CSS_BOTTOM:
_cairo_ellipsis (cr,
box->bounds.origin.x + box->bounds.size.width - box->corner[GSK_CORNER_BOTTOM_RIGHT].width,
box->bounds.origin.y + box->bounds.size.height - box->corner[GSK_CORNER_BOTTOM_RIGHT].height,
box->corner[GSK_CORNER_BOTTOM_RIGHT].width,
box->corner[GSK_CORNER_BOTTOM_RIGHT].height,
G_PI_4, G_PI_2);
_cairo_ellipsis (cr,
box->bounds.origin.x + box->corner[GSK_CORNER_BOTTOM_LEFT].width,
box->bounds.origin.y + box->bounds.size.height - box->corner[GSK_CORNER_BOTTOM_LEFT].height,
box->corner[GSK_CORNER_BOTTOM_LEFT].width,
box->corner[GSK_CORNER_BOTTOM_LEFT].height,
G_PI_2, 3 * G_PI_4);
break;
case GTK_CSS_LEFT:
_cairo_ellipsis (cr,
box->bounds.origin.x + box->corner[GSK_CORNER_BOTTOM_LEFT].width,
box->bounds.origin.y + box->bounds.size.height - box->corner[GSK_CORNER_BOTTOM_LEFT].height,
box->corner[GSK_CORNER_BOTTOM_LEFT].width,
box->corner[GSK_CORNER_BOTTOM_LEFT].height,
3 * G_PI_4, G_PI);
_cairo_ellipsis (cr,
box->bounds.origin.x + box->corner[GSK_CORNER_TOP_LEFT].width,
box->bounds.origin.y + box->corner[GSK_CORNER_TOP_LEFT].height,
box->corner[GSK_CORNER_TOP_LEFT].width,
box->corner[GSK_CORNER_TOP_LEFT].height,
G_PI, 5 * G_PI_4);
break;
default:
g_assert_not_reached ();
break;
}
}
void
_gtk_rounded_box_path_top (const GskRoundedRect *outer,
const GskRoundedRect *inner,
cairo_t *cr)
{
double start_angle, middle_angle, end_angle;
if (outer->bounds.origin.y == inner->bounds.origin.y)
return;
if (outer->bounds.origin.x == inner->bounds.origin.x)
start_angle = G_PI;
else
start_angle = 5 * G_PI_4;
middle_angle = 3 * G_PI_2;
if (outer->bounds.origin.x + outer->bounds.size.width == inner->bounds.origin.x + inner->bounds.size.width)
end_angle = 0;
else
end_angle = 7 * G_PI_4;
cairo_new_sub_path (cr);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->corner[GSK_CORNER_TOP_LEFT].width,
outer->bounds.origin.y + outer->corner[GSK_CORNER_TOP_LEFT].height,
outer->corner[GSK_CORNER_TOP_LEFT].width,
outer->corner[GSK_CORNER_TOP_LEFT].height,
start_angle, middle_angle);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->bounds.size.width - outer->corner[GSK_CORNER_TOP_RIGHT].width,
outer->bounds.origin.y + outer->corner[GSK_CORNER_TOP_RIGHT].height,
outer->corner[GSK_CORNER_TOP_RIGHT].width,
outer->corner[GSK_CORNER_TOP_RIGHT].height,
middle_angle, end_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->bounds.size.width - inner->corner[GSK_CORNER_TOP_RIGHT].width,
inner->bounds.origin.y + inner->corner[GSK_CORNER_TOP_RIGHT].height,
inner->corner[GSK_CORNER_TOP_RIGHT].width,
inner->corner[GSK_CORNER_TOP_RIGHT].height,
end_angle, middle_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->corner[GSK_CORNER_TOP_LEFT].width,
inner->bounds.origin.y + inner->corner[GSK_CORNER_TOP_LEFT].height,
inner->corner[GSK_CORNER_TOP_LEFT].width,
inner->corner[GSK_CORNER_TOP_LEFT].height,
middle_angle, start_angle);
cairo_close_path (cr);
}
void
_gtk_rounded_box_path_right (const GskRoundedRect *outer,
const GskRoundedRect *inner,
cairo_t *cr)
{
double start_angle, middle_angle, end_angle;
if (outer->bounds.origin.x + outer->bounds.size.width == inner->bounds.origin.x + inner->bounds.size.width)
return;
if (outer->bounds.origin.y == inner->bounds.origin.y)
start_angle = 3 * G_PI_2;
else
start_angle = 7 * G_PI_4;
middle_angle = 0;
if (outer->bounds.origin.y + outer->bounds.size.height == inner->bounds.origin.y + inner->bounds.size.height)
end_angle = G_PI_2;
else
end_angle = G_PI_4;
cairo_new_sub_path (cr);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->bounds.size.width - outer->corner[GSK_CORNER_TOP_RIGHT].width,
outer->bounds.origin.y + outer->corner[GSK_CORNER_TOP_RIGHT].height,
outer->corner[GSK_CORNER_TOP_RIGHT].width,
outer->corner[GSK_CORNER_TOP_RIGHT].height,
start_angle, middle_angle);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->bounds.size.width - outer->corner[GSK_CORNER_BOTTOM_RIGHT].width,
outer->bounds.origin.y + outer->bounds.size.height - outer->corner[GSK_CORNER_BOTTOM_RIGHT].height,
outer->corner[GSK_CORNER_BOTTOM_RIGHT].width,
outer->corner[GSK_CORNER_BOTTOM_RIGHT].height,
middle_angle, end_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->bounds.size.width - inner->corner[GSK_CORNER_BOTTOM_RIGHT].width,
inner->bounds.origin.y + inner->bounds.size.height - inner->corner[GSK_CORNER_BOTTOM_RIGHT].height,
inner->corner[GSK_CORNER_BOTTOM_RIGHT].width,
inner->corner[GSK_CORNER_BOTTOM_RIGHT].height,
end_angle, middle_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->bounds.size.width - inner->corner[GSK_CORNER_TOP_RIGHT].width,
inner->bounds.origin.y + inner->corner[GSK_CORNER_TOP_RIGHT].height,
inner->corner[GSK_CORNER_TOP_RIGHT].width,
inner->corner[GSK_CORNER_TOP_RIGHT].height,
middle_angle, start_angle);
cairo_close_path (cr);
}
void
_gtk_rounded_box_path_bottom (const GskRoundedRect *outer,
const GskRoundedRect *inner,
cairo_t *cr)
{
double start_angle, middle_angle, end_angle;
if (outer->bounds.origin.y + outer->bounds.size.height == inner->bounds.origin.y + inner->bounds.size.height)
return;
if (outer->bounds.origin.x + outer->bounds.size.width == inner->bounds.origin.x + inner->bounds.size.width)
start_angle = 0;
else
start_angle = G_PI_4;
middle_angle = G_PI_2;
if (outer->bounds.origin.x == inner->bounds.origin.x)
end_angle = G_PI;
else
end_angle = 3 * G_PI_4;
cairo_new_sub_path (cr);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->bounds.size.width - outer->corner[GSK_CORNER_BOTTOM_RIGHT].width,
outer->bounds.origin.y + outer->bounds.size.height - outer->corner[GSK_CORNER_BOTTOM_RIGHT].height,
outer->corner[GSK_CORNER_BOTTOM_RIGHT].width,
outer->corner[GSK_CORNER_BOTTOM_RIGHT].height,
start_angle, middle_angle);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->corner[GSK_CORNER_BOTTOM_LEFT].width,
outer->bounds.origin.y + outer->bounds.size.height - outer->corner[GSK_CORNER_BOTTOM_LEFT].height,
outer->corner[GSK_CORNER_BOTTOM_LEFT].width,
outer->corner[GSK_CORNER_BOTTOM_LEFT].height,
middle_angle, end_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->corner[GSK_CORNER_BOTTOM_LEFT].width,
inner->bounds.origin.y + inner->bounds.size.height - inner->corner[GSK_CORNER_BOTTOM_LEFT].height,
inner->corner[GSK_CORNER_BOTTOM_LEFT].width,
inner->corner[GSK_CORNER_BOTTOM_LEFT].height,
end_angle, middle_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->bounds.size.width - inner->corner[GSK_CORNER_BOTTOM_RIGHT].width,
inner->bounds.origin.y + inner->bounds.size.height - inner->corner[GSK_CORNER_BOTTOM_RIGHT].height,
inner->corner[GSK_CORNER_BOTTOM_RIGHT].width,
inner->corner[GSK_CORNER_BOTTOM_RIGHT].height,
middle_angle, start_angle);
cairo_close_path (cr);
}
void
_gtk_rounded_box_path_left (const GskRoundedRect *outer,
const GskRoundedRect *inner,
cairo_t *cr)
{
double start_angle, middle_angle, end_angle;
if (outer->bounds.origin.x == inner->bounds.origin.x)
return;
if (outer->bounds.origin.y + outer->bounds.size.height == inner->bounds.origin.y + inner->bounds.size.height)
start_angle = G_PI_2;
else
start_angle = 3 * G_PI_4;
middle_angle = G_PI;
if (outer->bounds.origin.y == inner->bounds.origin.y)
end_angle = 3 * G_PI_2;
else
end_angle = 5 * G_PI_4;
cairo_new_sub_path (cr);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->corner[GSK_CORNER_BOTTOM_LEFT].width,
outer->bounds.origin.y + outer->bounds.size.height - outer->corner[GSK_CORNER_BOTTOM_LEFT].height,
outer->corner[GSK_CORNER_BOTTOM_LEFT].width,
outer->corner[GSK_CORNER_BOTTOM_LEFT].height,
start_angle, middle_angle);
_cairo_ellipsis (cr,
outer->bounds.origin.x + outer->corner[GSK_CORNER_TOP_LEFT].width,
outer->bounds.origin.y + outer->corner[GSK_CORNER_TOP_LEFT].height,
outer->corner[GSK_CORNER_TOP_LEFT].width,
outer->corner[GSK_CORNER_TOP_LEFT].height,
middle_angle, end_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->corner[GSK_CORNER_TOP_LEFT].width,
inner->bounds.origin.y + inner->corner[GSK_CORNER_TOP_LEFT].height,
inner->corner[GSK_CORNER_TOP_LEFT].width,
inner->corner[GSK_CORNER_TOP_LEFT].height,
end_angle, middle_angle);
_cairo_ellipsis_negative (cr,
inner->bounds.origin.x + inner->corner[GSK_CORNER_BOTTOM_LEFT].width,
inner->bounds.origin.y + inner->bounds.size.height - inner->corner[GSK_CORNER_BOTTOM_LEFT].height,
inner->corner[GSK_CORNER_BOTTOM_LEFT].width,
inner->corner[GSK_CORNER_BOTTOM_LEFT].height,
middle_angle, start_angle);
cairo_close_path (cr);
}
void
_gtk_rounded_box_clip_path (const GskRoundedRect *box,
cairo_t *cr)
{
cairo_rectangle (cr,
box->bounds.origin.x, box->bounds.origin.y,
box->bounds.size.width, box->bounds.size.height);
}
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