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/* $Id$ $Revision$ */
/* vim:set shiftwidth=4 ts=8: */
/*************************************************************************
* Copyright (c) 2011 AT&T Intellectual Property
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors: See CVS logs. Details at http://www.graphviz.org/
*************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include "gvplugin_loadimage.h"
#include "gvplugin_gdiplus.h"
#include <windows.h>
#include "GdiPlus.h"
#include "FileStream.h"
using namespace Gdiplus;
static void gdiplus_freeimage(usershape_t *us)
{
delete (Image*)us->data;
}
static Image* gdiplus_loadimage(GVJ_t * job, usershape_t *us)
{
assert(job);
assert(us);
assert(us->name);
if (us->data && us->datafree != gdiplus_freeimage) {
us->datafree(us); /* free incompatible cache data */
us->data = NULL;
us->datafree = NULL;
}
if (!us->data) { /* read file into cache */
if (!gvusershape_file_access(us))
return NULL;
/* create image from the usershape file */
/* NOTE: since Image::FromStream consumes the stream, we assume FileStream's lifetime should be shorter than us->name and us->f... */
IStream *stream = FileStream::Create((char*)us->name, us->f);
us->data = Image::FromStream (stream);
/* clean up */
if (us->data)
us->datafree = gdiplus_freeimage;
stream->Release();
gvusershape_file_release(us);
}
return (Image *)(us->data);
}
static void gdiplus_loadimage_gdiplus(GVJ_t * job, usershape_t *us, boxf b, boolean filled)
{
/* get the image from usershape details, then blit it to the context */
Image *image = gdiplus_loadimage(job, us);
if (image)
((Graphics *)job->context)->DrawImage(image, RectF(b.LL.x, b.LL.y, b.UR.x - b.LL.x, b.UR.y - b.LL.y));
}
static gvloadimage_engine_t engine = {
gdiplus_loadimage_gdiplus
};
gvplugin_installed_t gvloadimage_gdiplus_types[] = {
{FORMAT_BMP, "bmp:gdiplus", 8, &engine, NULL},
{FORMAT_GIF, "gif:gdiplus", 8, &engine, NULL},
{FORMAT_JPEG, "jpe:gdiplus", 8, &engine, NULL},
{FORMAT_JPEG, "jpeg:gdiplus", 8, &engine, NULL},
{FORMAT_JPEG, "jpg:gdiplus", 8, &engine, NULL},
{FORMAT_PNG, "png:gdiplus", 8, &engine, NULL},
{0, NULL, 0, NULL, NULL}
};
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