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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 <gjs/gjs-module.h>
#include <gjs/compat.h>
#include <cairo.h>
#include "cairo-private.h"
typedef struct {
void *dummy;
JSContext *context;
JSObject *object;
cairo_surface_t *surface;
} GjsCairoSurface;
GJS_DEFINE_PROTO_ABSTRACT("CairoSurface", cairo_surface)
GJS_DEFINE_PRIV_FROM_JS(GjsCairoSurface, gjs_cairo_surface_class)
static void
gjs_cairo_surface_finalize(JSContext *context,
JSObject *obj)
{
GjsCairoSurface *priv;
priv = JS_GetPrivate(obj);
if (priv == NULL)
return;
cairo_surface_destroy(priv->surface);
g_slice_free(GjsCairoSurface, priv);
}
/* Properties */
static JSPropertySpec gjs_cairo_surface_proto_props[] = {
{ NULL }
};
/* Methods */
static JSBool
writeToPNG_func(JSContext *context,
unsigned argc,
jsval *vp)
{
jsval *argv = JS_ARGV(context, vp);
JSObject *obj = JS_THIS_OBJECT(context, vp);
char *filename;
cairo_surface_t *surface;
if (!gjs_parse_args(context, "writeToPNG", "s", argc, argv,
"filename", &filename))
return JS_FALSE;
surface = gjs_cairo_surface_get_surface(context, obj);
if (!surface) {
g_free(filename);
return JS_FALSE;
}
cairo_surface_write_to_png(surface, filename);
g_free(filename);
if (!gjs_cairo_check_status(context, cairo_surface_status(surface),
"surface"))
return JS_FALSE;
JS_SET_RVAL(context, vp, JSVAL_VOID);
return JS_TRUE;
}
static JSBool
getType_func(JSContext *context,
unsigned argc,
jsval *vp)
{
JSObject *obj = JS_THIS_OBJECT(context, vp);
cairo_surface_t *surface;
cairo_surface_type_t type;
if (argc > 1) {
gjs_throw(context, "Surface.getType() takes no arguments");
return JS_FALSE;
}
surface = gjs_cairo_surface_get_surface(context, obj);
type = cairo_surface_get_type(surface);
if (!gjs_cairo_check_status(context, cairo_surface_status(surface),
"surface"))
return JS_FALSE;
JS_SET_RVAL(context, vp, INT_TO_JSVAL(type));
return JS_TRUE;
}
static JSFunctionSpec gjs_cairo_surface_proto_funcs[] = {
// flush
// getContent
// getFontOptions
{ "getType", (JSNative)getType_func, 0, 0},
// markDirty
// markDirtyRectangle
// setDeviceOffset
// getDeviceOffset
// setFallbackResolution
// getFallbackResolution
// copyPage
// showPage
// hasShowTextGlyphs
{ "writeToPNG", (JSNative)writeToPNG_func, 0, 0 },
{ NULL }
};
/* Public API */
/**
* gjs_cairo_surface_construct:
* @context: the context
* @object: object to construct
* @surface: cairo_surface to attach to the object
*
* Constructs a surface wrapper giving an empty JSObject and a
* cairo surface. A reference to @surface will be taken.
*
* This is mainly used for subclasses where object is already created.
*/
void
gjs_cairo_surface_construct(JSContext *context,
JSObject *object,
cairo_surface_t *surface)
{
GjsCairoSurface *priv;
g_return_if_fail(context != NULL);
g_return_if_fail(object != NULL);
g_return_if_fail(surface != NULL);
priv = g_slice_new0(GjsCairoSurface);
g_assert(priv_from_js(context, object) == NULL);
JS_SetPrivate(object, priv);
priv->context = context;
priv->object = object;
priv->surface = cairo_surface_reference(surface);
}
/**
* gjs_cairo_surface_finalize:
* @context: the context
* @object: object to finalize
*
* Destroys the resources associated with a surface wrapper.
*
* This is mainly used for subclasses.
*/
void
gjs_cairo_surface_finalize_surface(JSContext *context,
JSObject *object)
{
g_return_if_fail(context != NULL);
g_return_if_fail(object != NULL);
gjs_cairo_surface_finalize(context, object);
}
/**
* gjs_cairo_surface_from_surface:
* @context: the context
* @surface: cairo_surface to attach to the object
*
* Constructs a surface wrapper given cairo surface.
* A reference to @surface will be taken.
*
*/
JSObject *
gjs_cairo_surface_from_surface(JSContext *context,
cairo_surface_t *surface)
{
JSObject *object;
g_return_val_if_fail(context != NULL, NULL);
g_return_val_if_fail(surface != NULL, NULL);
switch (cairo_surface_get_type(surface)) {
case CAIRO_SURFACE_TYPE_IMAGE:
return gjs_cairo_image_surface_from_surface(context, surface);
case CAIRO_SURFACE_TYPE_PDF:
return gjs_cairo_pdf_surface_from_surface(context, surface);
case CAIRO_SURFACE_TYPE_PS:
return gjs_cairo_ps_surface_from_surface(context, surface);
case CAIRO_SURFACE_TYPE_SVG:
return gjs_cairo_svg_surface_from_surface(context, surface);
default:
break;
}
object = JS_NewObject(context, &gjs_cairo_surface_class, NULL, NULL);
if (!object) {
gjs_throw(context, "failed to create surface");
return NULL;
}
gjs_cairo_surface_construct(context, object, surface);
return object;
}
/**
* gjs_cairo_surface_get_surface:
* @context: the context
* @object: surface wrapper
*
* Returns: the surface attaches to the wrapper.
*
*/
cairo_surface_t *
gjs_cairo_surface_get_surface(JSContext *context,
JSObject *object)
{
GjsCairoSurface *priv;
g_return_val_if_fail(context != NULL, NULL);
g_return_val_if_fail(object != NULL, NULL);
priv = JS_GetPrivate(object);
if (priv == NULL)
return NULL;
return priv->surface;
}
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