1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
// SPDX-License-Identifier: MIT OR LGPL-2.0-or-later
// SPDX-FileCopyrightText: 2010 litl, LLC.
#include <config.h>
#include <cairo.h>
#include <glib.h>
#include <js/Class.h>
#include <js/PropertyDescriptor.h> // for JSPROP_READONLY
#include <js/PropertySpec.h>
#include <js/RootingAPI.h>
#include <js/TypeDecls.h>
#include <jsapi.h> // for JS_NewObjectWithGivenProto
#include "gjs/jsapi-class.h"
#include "gjs/jsapi-util-args.h"
#include "gjs/jsapi-util.h"
#include "modules/cairo-private.h"
[[nodiscard]] static JSObject* gjs_cairo_radial_gradient_get_proto(JSContext*);
GJS_DEFINE_PROTO_WITH_PARENT("RadialGradient", cairo_radial_gradient,
cairo_gradient, JSCLASS_BACKGROUND_FINALIZE)
GJS_NATIVE_CONSTRUCTOR_DECLARE(cairo_radial_gradient)
{
GJS_NATIVE_CONSTRUCTOR_VARIABLES(cairo_radial_gradient)
double cx0, cy0, radius0, cx1, cy1, radius1;
cairo_pattern_t *pattern;
GJS_NATIVE_CONSTRUCTOR_PRELUDE(cairo_radial_gradient);
if (!gjs_parse_call_args(context, "RadialGradient", argv, "ffffff",
"cx0", &cx0,
"cy0", &cy0,
"radius0", &radius0,
"cx1", &cx1,
"cy1", &cy1,
"radius1", &radius1))
return false;
pattern = cairo_pattern_create_radial(cx0, cy0, radius0, cx1, cy1, radius1);
if (!gjs_cairo_check_status(context, cairo_pattern_status(pattern), "pattern"))
return false;
gjs_cairo_pattern_construct(object, pattern);
cairo_pattern_destroy(pattern);
GJS_NATIVE_CONSTRUCTOR_FINISH(cairo_radial_gradient);
return true;
}
static void
gjs_cairo_radial_gradient_finalize(JSFreeOp *fop,
JSObject *obj)
{
gjs_cairo_pattern_finalize_pattern(fop, obj);
}
JSPropertySpec gjs_cairo_radial_gradient_proto_props[] = {
JS_STRING_SYM_PS(toStringTag, "RadialGradient", JSPROP_READONLY),
JS_PS_END};
JSFunctionSpec gjs_cairo_radial_gradient_proto_funcs[] = {
// getRadialCircles
JS_FS_END
};
JSFunctionSpec gjs_cairo_radial_gradient_static_funcs[] = { JS_FS_END };
JSObject *
gjs_cairo_radial_gradient_from_pattern(JSContext *context,
cairo_pattern_t *pattern)
{
g_return_val_if_fail(context, nullptr);
g_return_val_if_fail(pattern, nullptr);
g_return_val_if_fail(
cairo_pattern_get_type(pattern) == CAIRO_PATTERN_TYPE_RADIAL, nullptr);
JS::RootedObject proto(context,
gjs_cairo_radial_gradient_get_proto(context));
JS::RootedObject object(context,
JS_NewObjectWithGivenProto(context, &gjs_cairo_radial_gradient_class,
proto));
if (!object) {
gjs_throw(context, "failed to create radial gradient pattern");
return nullptr;
}
gjs_cairo_pattern_construct(object, pattern);
return object;
}
|