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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
/* Copyright 2010 litl, LLC.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <config.h>
#include <cairo-gobject.h>
#include <cairo.h>
#include <glib.h>
#include <js/CallArgs.h>
#include <js/Class.h>
#include <js/PropertySpec.h>
#include <js/RootingAPI.h>
#include <js/TypeDecls.h>
#include <jsapi.h> // for JS_GetPrivate, JS_GetClass, ...
#include "gjs/jsapi-class.h"
#include "gjs/jsapi-util.h"
#include "gjs/macros.h"
#include "modules/cairo-private.h"
GJS_DEFINE_PROTO_ABSTRACT_WITH_GTYPE("Pattern", cairo_pattern,
CAIRO_GOBJECT_TYPE_PATTERN,
JSCLASS_BACKGROUND_FINALIZE)
static void gjs_cairo_pattern_finalize(JSFreeOp*, JSObject* obj) {
using AutoPattern =
GjsAutoPointer<cairo_pattern_t, cairo_pattern_t, cairo_pattern_destroy>;
AutoPattern pattern = static_cast<cairo_pattern_t*>(JS_GetPrivate(obj));
JS_SetPrivate(obj, nullptr);
}
/* Properties */
JSPropertySpec gjs_cairo_pattern_proto_props[] = {
JS_PS_END
};
/* Methods */
GJS_JSAPI_RETURN_CONVENTION
static bool
getType_func(JSContext *context,
unsigned argc,
JS::Value *vp)
{
GJS_GET_THIS(context, argc, vp, rec, obj);
cairo_pattern_type_t type;
if (argc > 1) {
gjs_throw(context, "Pattern.getType() takes no arguments");
return false;
}
cairo_pattern_t* pattern = gjs_cairo_pattern_get_pattern(context, obj);
if (!pattern)
return false;
type = cairo_pattern_get_type(pattern);
if (!gjs_cairo_check_status(context, cairo_pattern_status(pattern), "pattern"))
return false;
rec.rval().setInt32(type);
return true;
}
JSFunctionSpec gjs_cairo_pattern_proto_funcs[] = {
// getMatrix
JS_FN("getType", getType_func, 0, 0),
// setMatrix
JS_FS_END};
JSFunctionSpec gjs_cairo_pattern_static_funcs[] = { JS_FS_END };
/* Public API */
/**
* gjs_cairo_pattern_construct:
* @object: object to construct
* @pattern: cairo_pattern to attach to the object
*
* Constructs a pattern wrapper giving an empty JSObject and a
* cairo pattern. A reference to @pattern will be taken.
*
* This is mainly used for subclasses where object is already created.
*/
void gjs_cairo_pattern_construct(JSObject* object, cairo_pattern_t* pattern) {
g_return_if_fail(object);
g_return_if_fail(pattern);
g_assert(!JS_GetPrivate(object));
JS_SetPrivate(object, cairo_pattern_reference(pattern));
}
/**
* gjs_cairo_pattern_finalize:
* @fop: the free op
* @object: object to finalize
*
* Destroys the resources associated with a pattern wrapper.
*
* This is mainly used for subclasses.
*/
void
gjs_cairo_pattern_finalize_pattern(JSFreeOp *fop,
JSObject *object)
{
g_return_if_fail(fop);
g_return_if_fail(object);
gjs_cairo_pattern_finalize(fop, object);
}
/**
* gjs_cairo_pattern_from_pattern:
* @context: the context
* @pattern: cairo_pattern to attach to the object
*
* Constructs a pattern wrapper given cairo pattern.
* A reference to @pattern will be taken.
*
*/
JSObject *
gjs_cairo_pattern_from_pattern(JSContext *context,
cairo_pattern_t *pattern)
{
g_return_val_if_fail(context, nullptr);
g_return_val_if_fail(pattern, nullptr);
switch (cairo_pattern_get_type(pattern)) {
case CAIRO_PATTERN_TYPE_SOLID:
return gjs_cairo_solid_pattern_from_pattern(context, pattern);
case CAIRO_PATTERN_TYPE_SURFACE:
return gjs_cairo_surface_pattern_from_pattern(context, pattern);
case CAIRO_PATTERN_TYPE_LINEAR:
return gjs_cairo_linear_gradient_from_pattern(context, pattern);
case CAIRO_PATTERN_TYPE_RADIAL:
return gjs_cairo_radial_gradient_from_pattern(context, pattern);
case CAIRO_PATTERN_TYPE_MESH:
case CAIRO_PATTERN_TYPE_RASTER_SOURCE:
default:
gjs_throw(context,
"failed to create pattern, unsupported pattern type %d",
cairo_pattern_get_type(pattern));
return nullptr;
}
}
/**
* gjs_cairo_pattern_get_pattern:
* @cx: the context
* @pattern_wrapper: pattern wrapper
*
* Returns: the pattern attached to the wrapper.
*/
cairo_pattern_t* gjs_cairo_pattern_get_pattern(
JSContext* cx, JS::HandleObject pattern_wrapper) {
g_return_val_if_fail(cx, nullptr);
g_return_val_if_fail(pattern_wrapper, nullptr);
JS::RootedObject proto(cx, gjs_cairo_pattern_get_proto(cx));
bool is_pattern_subclass = false;
if (!gjs_object_in_prototype_chain(cx, proto, pattern_wrapper,
&is_pattern_subclass))
return nullptr;
if (!is_pattern_subclass) {
gjs_throw(cx, "Expected Cairo.Pattern but got %s",
JS_GetClass(pattern_wrapper)->name);
return nullptr;
}
return static_cast<cairo_pattern_t*>(JS_GetPrivate(pattern_wrapper));
}
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