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DUT2Curling/lib/ruby-gtk2-2.0.2/gdk_pixbuf2/ext/gdk_pixbuf2/rbgdk-pixbuf-loader.c

164 lines
4.2 KiB
C

/* -*- c-file-style: "ruby"; indent-tabs-mode: nil -*- */
/*
* Copyright (C) 2011 Ruby-GNOME2 Project Team
* Copyright (C) 2004 Masao Mutoh
* Copyright (C) 2003 Geoff Youngs
*
* 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 2.1 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include "rbgdk-pixbuf2private.h"
#define RG_TARGET_NAMESPACE cPixbufLoader
#define _SELF(s) RVAL2GDKPIXBUFLOADER(s)
/****************************************************/
/* File opening */
/* Image Data in Memory */
static VALUE
rg_initialize(int argc, VALUE *argv, VALUE self)
{
GdkPixbufLoader* loader;
GError* error = NULL;
VALUE arg1, is_mime_type;
rb_scan_args(argc, argv, "02", &arg1, &is_mime_type);
if (NIL_P(arg1)) {
loader = gdk_pixbuf_loader_new();
} else {
if (is_mime_type == Qtrue) {
#if RBGDK_PIXBUF_CHECK_VERSION(2,4,0)
loader = gdk_pixbuf_loader_new_with_mime_type(RVAL2CSTR(arg1), &error);
#else
rb_warning("Not supported GTK+-2.0/2.2.");
loader = gdk_pixbuf_loader_new();
#endif
} else {
/* Default behavior */
loader = gdk_pixbuf_loader_new_with_type(RVAL2CSTR(arg1), &error);
}
if(error) RAISE_GERROR(error);
}
G_INITIALIZE(self, loader);
return Qnil;
}
#if RBGDK_PIXBUF_CHECK_VERSION(2,2,0)
static VALUE
rg_format(VALUE self)
{
GdkPixbufFormat* format = gdk_pixbuf_loader_get_format(_SELF(self));
return GDKPIXBUFFORMAT2RVAL(format);
}
#endif
static VALUE
rg_write(VALUE self, VALUE data)
{
GError *error = NULL;
StringValue(data);
if (!gdk_pixbuf_loader_write(_SELF(self),
(const guchar *)RSTRING_PTR(data),
RSTRING_LEN(data),
&error))
RAISE_GERROR(error);
return Qtrue;
}
static VALUE
rg_last_write(VALUE self, VALUE data)
{
GError *error = NULL;
StringValue(data);
if (!gdk_pixbuf_loader_write(_SELF(self),
(const guchar *)RSTRING_PTR(data),
RSTRING_LEN(data),
&error))
RAISE_GERROR(error);
if (!gdk_pixbuf_loader_close(_SELF(self), &error))
RAISE_GERROR(error);
return Qtrue;
}
#if RBGDK_PIXBUF_CHECK_VERSION(2,2,0)
static VALUE
rg_set_size(VALUE self, VALUE width, VALUE height)
{
gdk_pixbuf_loader_set_size(_SELF(self), NUM2INT(width), NUM2INT(height));
return self;
}
#endif
static VALUE
rg_close(VALUE self)
{
GError *error = NULL;
gboolean res;
res = gdk_pixbuf_loader_close(_SELF(self), &error);
if(error)
RAISE_GERROR(error);
return CBOOL2RVAL(res);
}
/****************************************************/
/* Creating image */
static VALUE
rg_pixbuf(VALUE self)
{
return GOBJ2RVAL(gdk_pixbuf_loader_get_pixbuf(_SELF(self)));
}
/* Creating animation */
static VALUE
rg_animation(VALUE self)
{
return GOBJ2RVAL(gdk_pixbuf_loader_get_animation(_SELF(self)));
}
void
Init_gdk_pixbuf_loader(VALUE mGdk)
{
VALUE RG_TARGET_NAMESPACE;
/* initialize it */
RG_TARGET_NAMESPACE = G_DEF_CLASS(GDK_TYPE_PIXBUF_LOADER, "PixbufLoader", mGdk);
/*
* File Loading, Image Data in Memory
*/
RG_DEF_METHOD(initialize, -1);
rb_undef_method(RG_TARGET_NAMESPACE, "dup");
#if RBGDK_PIXBUF_CHECK_VERSION(2,2,0)
RG_DEF_METHOD(format, 0);
#endif
RG_DEF_METHOD(write, 1);
RG_DEF_METHOD(last_write, 1);
#if RBGDK_PIXBUF_CHECK_VERSION(2,2,0)
RG_DEF_METHOD(set_size, 2);
#endif
RG_DEF_METHOD(close, 0);
RG_DEF_METHOD(pixbuf, 0);
RG_DEF_METHOD(animation, 0);
}