Beispiel #1
0
bool create_api(wmfAPI** API) {
    wmfAPI_Options options;
    wmf_error_t error;
    unsigned long flags;

    flags = WMF_OPT_FUNCTION;
	flags |= WMF_OPT_IGNORE_NONFATAL;

    options.function = wmf_svg_function;
    error = wmf_api_create (API, flags, &options);
    if (error != wmf_E_None) {
        wmf_api_destroy (*API);
        return False;
    }
    return True;
}
Beispiel #2
0
static guchar *
wmf_load_file (const gchar  *filename,
               guint        *width,
               guint        *height,
               GError      **error)
{
  GMappedFile    *file;
  guchar         *pixels   = NULL;

  /* the bits we need to decode the WMF via libwmf2's GD layer  */
  wmf_error_t     err;
  gulong          flags;
  wmf_gd_t       *ddata = NULL;
  wmfAPI         *API   = NULL;
  wmfAPI_Options  api_options;
  wmfD_Rect       bbox;
  gint           *gd_pixels = NULL;

  *width = *height = -1;

  file = g_mapped_file_new (filename, FALSE, error);
  if (! file)
    return NULL;

  flags = WMF_OPT_IGNORE_NONFATAL | WMF_OPT_FUNCTION;
  api_options.function = wmf_gd_function;

  err = wmf_api_create (&API, flags, &api_options);
  if (err != wmf_E_None)
    goto _wmf_error;

  ddata = WMF_GD_GetData (API);
  ddata->type = wmf_gd_image;

  err = wmf_mem_open (API,
                      (guchar *) g_mapped_file_get_contents (file),
                      g_mapped_file_get_length (file));
  if (err != wmf_E_None)
    goto _wmf_error;

  err = wmf_scan (API, 0, &bbox);
  if (err != wmf_E_None)
    goto _wmf_error;

  err = wmf_display_size (API,
                          width, height,
                          load_vals.resolution, load_vals.resolution);
  if (err != wmf_E_None || *width <= 0 || *height <= 0)
    goto _wmf_error;

  if (load_vals.width > 0 && load_vals.height > 0)
    {
      *width  = load_vals.width;
      *height = load_vals.height;
    }

  ddata->bbox   = bbox;
  ddata->width  = *width;
  ddata->height = *height;

  err = wmf_play (API, 0, &bbox);
  if (err != wmf_E_None)
    goto _wmf_error;

  if (ddata->gd_image != NULL)
    gd_pixels = wmf_gd_image_pixels (ddata->gd_image);
  if (gd_pixels == NULL)
    goto _wmf_error;

  pixels = pixbuf_gd_convert (gd_pixels, *width, *height);
  if (pixels == NULL)
    goto _wmf_error;

 _wmf_error:
  if (API)
    {
      wmf_mem_close (API);
      wmf_api_destroy (API);
    }

  g_mapped_file_unref (file);

  /* FIXME: improve error message */
  g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
               _("Could not open '%s' for reading"),
               gimp_filename_to_utf8 (filename));

  return pixels;
}
Beispiel #3
0
static guchar *
wmf_get_pixbuf (const gchar *filename,
                gint        *width,
                gint        *height)
{
  GMappedFile    *file;
  guchar         *pixels   = NULL;

  /* the bits we need to decode the WMF via libwmf2's GD layer  */
  wmf_error_t     err;
  gulong          flags;
  wmf_gd_t       *ddata = NULL;
  wmfAPI         *API   = NULL;
  wmfAPI_Options  api_options;
  guint           file_width;
  guint           file_height;
  wmfD_Rect       bbox;
  gint           *gd_pixels = NULL;

  file = g_mapped_file_new (filename, FALSE, NULL);
  if (! file)
    return NULL;

  flags = WMF_OPT_IGNORE_NONFATAL | WMF_OPT_FUNCTION;
  api_options.function = wmf_gd_function;

  err = wmf_api_create (&API, flags, &api_options);
  if (err != wmf_E_None)
    goto _wmf_error;

  ddata = WMF_GD_GetData (API);
  ddata->type = wmf_gd_image;

  err = wmf_mem_open (API,
                      (guchar *) g_mapped_file_get_contents (file),
                      g_mapped_file_get_length (file));
  if (err != wmf_E_None)
    goto _wmf_error;

  err = wmf_scan (API, 0, &bbox);
  if (err != wmf_E_None)
    goto _wmf_error;

  err = wmf_display_size (API, &file_width, &file_height,
                          WMF_DEFAULT_RESOLUTION, WMF_DEFAULT_RESOLUTION);
  if (err != wmf_E_None || file_width <= 0 || file_height <= 0)
    goto _wmf_error;

  if (!*width || !*height)
    goto _wmf_error;

  /*  either both arguments negative or none  */
  if ((*width * *height) < 0)
    goto _wmf_error;

  ddata->bbox   = bbox;

  if (*width > 0)
    {
      ddata->width  = *width;
      ddata->height = *height;
    }
  else
    {
      gdouble w      = file_width;
      gdouble h      = file_height;
      gdouble aspect = ((gdouble) *width) / (gdouble) *height;

      if (aspect > (w / h))
        {
          ddata->height = abs (*height);
          ddata->width  = (gdouble) abs (*width) * (w / h) + 0.5;
        }
      else
        {
          ddata->width  = abs (*width);
          ddata->height = (gdouble) abs (*height) / (w / h) + 0.5;
        }
    }

  err = wmf_play (API, 0, &bbox);
  if (err != wmf_E_None)
    goto _wmf_error;

  if (ddata->gd_image != NULL)
    gd_pixels = wmf_gd_image_pixels (ddata->gd_image);
  if (gd_pixels == NULL)
    goto _wmf_error;

  pixels = pixbuf_gd_convert (gd_pixels, ddata->width, ddata->height);
  if (pixels == NULL)
    goto _wmf_error;

  *width = ddata->width;
  *height = ddata->height;

 _wmf_error:
  if (API)
    {
      wmf_mem_close (API);
      wmf_api_destroy (API);
    }

  g_mapped_file_unref (file);

  return pixels;
}
Beispiel #4
0
/*  This function retrieves the pixel size from a WMF file. */
static gboolean
load_wmf_size (const gchar *filename,
               WmfLoadVals *vals)
{
  GMappedFile    *file;
  /* the bits we need to decode the WMF via libwmf2's GD layer  */
  wmf_error_t     err;
  gulong          flags;
  wmf_gd_t       *ddata = NULL;
  wmfAPI         *API   = NULL;
  wmfAPI_Options  api_options;
  wmfD_Rect       bbox;
  guint           width   = -1;
  guint           height  = -1;
  gboolean        success = TRUE;

  file = g_mapped_file_new (filename, FALSE, NULL);
  if (! file)
    return FALSE;

  flags = WMF_OPT_IGNORE_NONFATAL | WMF_OPT_FUNCTION;
  api_options.function = wmf_gd_function;

  err = wmf_api_create (&API, flags, &api_options);
  if (err != wmf_E_None)
    success = FALSE;

  ddata = WMF_GD_GetData (API);
  ddata->type = wmf_gd_image;

  err = wmf_mem_open (API,
                      (guchar *) g_mapped_file_get_contents (file),
                      g_mapped_file_get_length (file));
  if (err != wmf_E_None)
    success = FALSE;

  err = wmf_scan (API, 0, &bbox);
  if (err != wmf_E_None)
    success = FALSE;

  err = wmf_display_size (API, &width, &height,
                          vals->resolution, vals->resolution);
  if (err != wmf_E_None || width <= 0 || height <= 0)
    success = FALSE;

  wmf_mem_close (API);
  g_mapped_file_unref (file);

  if (width < 1 || height < 1)
    {
      width  = WMF_DEFAULT_SIZE;
      height = WMF_DEFAULT_SIZE;

      if (size_label)
        gtk_label_set_text (GTK_LABEL (size_label),
                            _("WMF file does not\nspecify a size!"));
    }
  else
    {
      if (size_label)
        {
          gchar *text = g_strdup_printf (_("%d × %d"), width, height);

          gtk_label_set_text (GTK_LABEL (size_label), text);
          g_free (text);
        }
    }

  vals->width  = width;
  vals->height = height;

  return success;
}
UT_Error IE_ImpGraphic_WMF::convertGraphic(UT_ByteBuf* pBBwmf,
					   UT_ByteBuf** ppBBpng)
{
	UT_ByteBuf * pBBpng = 0;

	wmf_error_t err;

	wmf_gd_t * ddata = 0;

	wmfAPI * API = 0;
	wmfAPI_Options api_options;

	wmfD_Rect bbox;

	unsigned long flags;

#if 0 // the code that uses these two variables is in an if 0 block below
	unsigned int max_width  = 500;
	unsigned int max_height = 500;
#endif

	unsigned int width, height;

	bbuf_read_info  read_info;
	bbuf_write_info write_info;

   	if (!pBBwmf) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Bad Arg (1)\n"));
		return UT_ERROR;
	}
   	if (!ppBBpng) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Bad Arg (2)\n"));
		return UT_ERROR;
	}

	*ppBBpng = 0;

	flags = WMF_OPT_IGNORE_NONFATAL | WMF_OPT_FUNCTION;

	api_options.function = wmf_gd_function;

	err = wmf_api_create(&API,flags,&api_options);
	if (err != wmf_E_None) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic No API\n"));
		return UT_ERROR;
	}

	ddata = WMF_GD_GetData(API);
	if ((ddata->flags & WMF_GD_SUPPORTS_PNG) == 0) { // Impossible, but...
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic No PNG\n"));
		wmf_api_destroy(API);
		return UT_ERROR;
	}

	read_info.pByteBuf = pBBwmf;

	read_info.len = pBBwmf->getLength();
	read_info.pos = 0;

	err = wmf_bbuf_input (API,AbiWord_WMF_read,AbiWord_WMF_seek,AbiWord_WMF_tell,(void *) &read_info);
	if (err != wmf_E_None) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Bad input set\n"));
		wmf_api_destroy(API);
		return UT_ERROR;
	}

	err = wmf_scan (API,0,&bbox);
	if (err != wmf_E_None) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Scan failed\n"));
		wmf_api_destroy(API);
		return UT_ERROR;
	}

	/* TODO: be smarter about getting the resolution from screen 
	 */
	double resolution_x, resolution_y;
	resolution_x = resolution_y = 72.0;

	err = wmf_display_size (API, &width, &height, resolution_x, resolution_y);
	if (err != wmf_E_None) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Get size failed\n"));
		wmf_api_destroy(API);
		return UT_ERROR;
	}

	ddata->width  = (unsigned int) width;
	ddata->height = (unsigned int) height;

	if ((ddata->width == 0) || (ddata->height == 0)) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Size error (1)\n"));
		wmf_api_destroy(API);
		return UT_ERROR;
	}

#if 0
	// not sure if this branch is needed any more after the recent changes
	// done by FJF and myself inside of libWMF for better size detection - DAL

	if ((ddata->width >= max_width) || (ddata->height >= max_height)) {
		float ratio_wmf = height / width;
		float ratio_bounds = (float) max_height / (float) max_width;

		if (ratio_wmf > ratio_bounds) {
			ddata->height = max_height;
			ddata->width  = (unsigned int) ((float) ddata->height / ratio_wmf);
		}
		else {
			ddata->width  = max_width;
			ddata->height = (unsigned int) ((float) ddata->width  * ratio_wmf);
		}
	}
#endif

	if ((ddata->width == 0) || (ddata->height == 0)) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Size error (1)\n"));
		wmf_api_destroy(API);
		return UT_ERROR;
	}

	ddata->bbox = bbox;

	ddata->type = wmf_gd_png;

	pBBpng = new UT_ByteBuf;
	if (pBBpng == 0) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Ins. Mem.\n"));
		wmf_api_destroy(API);
		return UT_IE_NOMEMORY;
	}

	write_info.pByteBuf = pBBpng;

	ddata->flags |= WMF_GD_OUTPUT_MEMORY | WMF_GD_OWN_BUFFER;

	ddata->sink.context = (void *) &write_info;
	ddata->sink.function = AbiWord_WMF_function;

	err = wmf_play(API,0,&bbox);
	if (err != wmf_E_None) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Play failed\n"));
	}

	err = wmf_api_destroy(API);

	if (err == wmf_E_None) {
		*ppBBpng = pBBpng;
		return UT_OK;
	}

	UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Err. on destroy\n"));

	DELETEP(pBBpng);

	return UT_ERROR;
}
UT_Error IE_ImpGraphic_WMF::convertGraphicToSVG(UT_ByteBuf* pBBwmf, UT_ByteBuf** ppBB)
{
	int status = 0;

	unsigned int disp_width  = 0;
	unsigned int disp_height = 0;

	float wmf_width;
	float wmf_height;
	float ratio_wmf;
	float ratio_bounds;

	unsigned long flags;

	unsigned int max_width  = 768;
	unsigned int max_height = 512;
	unsigned long max_flags = 0;

	static const char* Default_Description = "wmf2svg";

	wmf_error_t err;

	wmf_svg_t* ddata = 0;

	wmfAPI* API = 0;
	wmfD_Rect bbox;

	wmfAPI_Options api_options;

	bbuf_read_info  read_info;

	char *stream = NULL;
	unsigned long stream_len = 0;

	*ppBB = 0;

	flags = 0;

	flags = WMF_OPT_IGNORE_NONFATAL | WMF_OPT_FUNCTION;
	api_options.function = wmf_svg_function;

	err = wmf_api_create (&API,flags,&api_options);
	status = explicit_wmf_error ("wmf_api_create",err);

	if (status)
	{	
		if (API) 
			wmf_api_destroy (API);
		return (UT_ERROR);
	}

	read_info.pByteBuf = pBBwmf;

	read_info.len = pBBwmf->getLength();
	read_info.pos = 0;

	err = wmf_bbuf_input (API,AbiWord_WMF_read,AbiWord_WMF_seek,AbiWord_WMF_tell,(void *) &read_info);
	if (err != wmf_E_None) {
		UT_DEBUGMSG(("IE_ImpGraphic_WMF::convertGraphic Bad input set\n"));
		goto ErrorHandler;
	}

	err = wmf_scan (API,0,&(bbox));
	status = explicit_wmf_error ("wmf_scan",err);

	if (status)
	{	
		goto ErrorHandler;
	}

/* Okay, got this far, everything seems cool.
 */
	ddata = WMF_SVG_GetData (API);

	ddata->out = wmf_stream_create(API, NULL);

	ddata->Description = (char *)Default_Description;

	ddata->bbox = bbox;

	wmf_display_size (API,&disp_width,&disp_height,72,72);

	wmf_width  = (float) disp_width;
	wmf_height = (float) disp_height;

	if ((wmf_width <= 0) || (wmf_height <= 0))
	{	fputs ("Bad image size - but this error shouldn't occur...\n",stderr);
		status = 1;
		wmf_api_destroy (API);
		return UT_ERROR;
	}

	if ((wmf_width  > (float) max_width )
	 || (wmf_height > (float) max_height))
	{	if (max_flags == 0) max_flags = WMF2SVG_MAXPECT;
	}

	if (max_flags == WMF2SVG_MAXPECT) /* scale the image */
	{	ratio_wmf = wmf_height / wmf_width;
		ratio_bounds = (float) max_height / (float) max_width;

		if (ratio_wmf > ratio_bounds)
		{	ddata->height = max_height;
			ddata->width  = (unsigned int) ((float) ddata->height / ratio_wmf);
		}
		else
		{	ddata->width  = max_width;
			ddata->height = (unsigned int) ((float) ddata->width  * ratio_wmf);
		}
	}
	else if (max_flags == WMF2SVG_MAXSIZE) /* bizarre option, really */
	{	ddata->width  = max_width;
		ddata->height = max_height;
	}
	else
	{	ddata->width  = (unsigned int) ceil ((double) wmf_width );
		ddata->height = (unsigned int) ceil ((double) wmf_height);
	}

	ddata->flags |= WMF_SVG_INLINE_IMAGES;

	ddata->flags |= WMF_GD_OUTPUT_MEMORY | WMF_GD_OWN_BUFFER;

	if (status == 0)
	{	err = wmf_play (API,0,&(bbox));
		status = explicit_wmf_error ("wmf_play",err);
	}

	wmf_stream_destroy(API, ddata->out, &stream, &stream_len);

	if (status == 0) 
	{
		UT_ByteBuf* pBB = new UT_ByteBuf;
		pBB->append((const UT_Byte*)stream, (UT_uint32)stream_len);
		*ppBB = pBB;
		DELETEP(pBBwmf);
		wmf_free(API, stream);
		wmf_api_destroy (API);
		return UT_OK;
	}

ErrorHandler:
	DELETEP(pBBwmf);
	if(API) 
	{
		if(stream) 
		{
			wmf_free(API, stream);
		}
		wmf_api_destroy (API);
	}
	return UT_ERROR;
}
Beispiel #7
0
static Image *ReadWMFImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
  char
    filename[MaxTextExtent];

  int
    unique_file;

  FILE
    *file;

  Image
    *image;

  ImageInfo
    *read_info;

  MagickBooleanType
    status;

  unsigned long
    flags;

  wmfAPI
    *wmf_info;

  wmfAPI_Options
    options;

  wmfD_Rect
    bounding_box;

  wmf_eps_t
    *eps_info;

  wmf_error_t
    wmf_status;

  /*
    Read WMF image.
  */
  image=AcquireImage(image_info);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == MagickFalse)
    {
      image=DestroyImageList(image);
      return((Image *) NULL);
    }
  wmf_info=(wmfAPI *) NULL;
  flags=0;
  flags|=WMF_OPT_IGNORE_NONFATAL;
  flags|=WMF_OPT_FUNCTION;
  options.function=wmf_eps_function;
  wmf_status=wmf_api_create(&wmf_info,flags,&options);
  if (wmf_status != wmf_E_None)
    {
      if (wmf_info != (wmfAPI *) NULL)
        wmf_api_destroy(wmf_info);
      ThrowReaderException(DelegateError,"UnableToInitializeWMFLibrary");
    }
  wmf_status=wmf_bbuf_input(wmf_info,WMFReadBlob,WMFSeekBlob,WMFTellBlob,
    (void *) image);
  if (wmf_status != wmf_E_None)
    {
      wmf_api_destroy(wmf_info);
      ThrowFileException(exception,FileOpenError,"UnableToOpenFile",
        image->filename);
      image=DestroyImageList(image);
      return((Image *) NULL);
    }
  wmf_status=wmf_scan(wmf_info,0,&bounding_box);
  if (wmf_status != wmf_E_None)
    {
      wmf_api_destroy(wmf_info);
      ThrowReaderException(DelegateError,"FailedToScanFile");
    }
  eps_info=WMF_EPS_GetData(wmf_info);
  file=(FILE *) NULL;
  unique_file=AcquireUniqueFileResource(filename);
  if (unique_file != -1)
    file=fdopen(unique_file,"wb");
  if ((unique_file == -1) || (file == (FILE *) NULL))
    {
      wmf_api_destroy(wmf_info);
      ThrowReaderException(FileOpenError,"UnableToCreateTemporaryFile");
    }
  eps_info->out=wmf_stream_create(wmf_info,file);
  eps_info->bbox=bounding_box;
  wmf_status=wmf_play(wmf_info,0,&bounding_box);
  if (wmf_status != wmf_E_None)
    {
      wmf_api_destroy(wmf_info);
      ThrowReaderException(DelegateError,"FailedToRenderFile");
    }
  (void) fclose(file);
  wmf_api_destroy(wmf_info);
  (void) CloseBlob(image);
  image=DestroyImage(image);
  /*
    Read EPS image.
  */
  read_info=CloneImageInfo(image_info);
  (void) FormatMagickString(read_info->filename,MaxTextExtent,"eps:%.1024s",
    filename);
  image=ReadImage(read_info,exception);
  read_info=DestroyImageInfo(read_info);
  if (image != (Image *) NULL)
    {
      (void) CopyMagickString(image->filename,image_info->filename,
        MaxTextExtent);
      (void) CopyMagickString(image->magick_filename,image_info->filename,
        MaxTextExtent);
      (void) CopyMagickString(image->magick,"WMF",MaxTextExtent);
    }
  (void) RelinquishUniqueFileResource(filename);
  return(GetFirstImageInList(image));
}
Beispiel #8
0
static gboolean
gdk_pixbuf__wmf_image_stop_load (gpointer data, GError **error)
{
	/* will be used to represent the WMF in-memory
	 * during the decoding process
	 */
	WmfContext      *context = (WmfContext *)data;  
	gboolean         result  = FALSE;

	guchar           *pixels   = NULL;
	GdkPixbuf        *pixbuf   = NULL;
 
	/* the bits we need to decode the WMF via libwmf2's GD layer
	 */
	wmf_error_t       err;
	unsigned long     flags;        
	wmf_gd_t         *ddata = NULL;        
	wmfAPI           *API   = NULL;        
	wmfAPI_Options    api_options;        
	wmfD_Rect         bbox;

	int              *gd_pixels = NULL;
        
	/* the natural width and height of the WMF or the user-specified with+height
	 */
	gint              width, height;

	double            resolution_x, resolution_y;

	if (error != NULL)
		*error = NULL;

	/* TODO: be smarter about getting the resolution from screen 
	 */
	resolution_x = resolution_y = 72.0;
	width = height = -1;

	flags = WMF_OPT_IGNORE_NONFATAL | WMF_OPT_FUNCTION;
	api_options.function = wmf_gd_function;

	err = wmf_api_create (&API, flags, &api_options);
	if (err != wmf_E_None) {
		g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
			     "Couldn't create WMF reader");
		goto _wmf_error;
	}

	ddata = WMF_GD_GetData (API);
	ddata->type = wmf_gd_image;

	err = wmf_mem_open (API, context->data->data, context->data->len);
	if (err != wmf_E_None) {
		g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_FAILED,
			     "Couldn't create reader API");
		goto _wmf_error;
	}
        
	err = wmf_scan (API, 0, &bbox);
	if (err != wmf_E_None) {
		g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
			     "Error scanning WMF file");
		goto _wmf_error;
	}

	/* find out how large the app wants the pixbuf to be
	 */
	if (context->size_func != NULL)
		(*context->size_func) (&width, &height, context->user_data);

	/* if these are <= 0, assume user wants the natural size of the wmf
	 */
	if (width <= 0 || height <= 0) {
		err = wmf_display_size (API, &width, &height, resolution_x, resolution_y);

		if (err != wmf_E_None || width <= 0 || height <= 0) {
			g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
				     "Couldn't determine image size");
			goto _wmf_error;
		}
	}

	ddata->bbox          = bbox;        
	ddata->width         = width;
	ddata->height        = height;
        
	err = wmf_play (API, 0, &bbox);
	if (err != wmf_E_None) {
		g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
			     "Couldn't decode WMF file into pixbuf");
		goto _wmf_error;
	}

	wmf_mem_close (API);

	if (ddata->gd_image != NULL) gd_pixels = wmf_gd_image_pixels (ddata->gd_image);
	if (gd_pixels == NULL) {
		g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
			     "Couldn't decode WMF file - no output (huh?)");
		goto _wmf_error;
	}

	pixels = pixbuf_gd_convert (gd_pixels, width, height);
	if (pixels == NULL) {
		g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
			     "Couldn't create RGBA buffer");
		goto _wmf_error;
	}

	wmf_api_destroy (API);
	API = NULL;

	pixbuf = gdk_pixbuf_new_from_data (pixels, GDK_COLORSPACE_RGB, TRUE, 8,
					   width, height, width * 4,
					   pixbuf_destroy_function, NULL);
	if (pixbuf == NULL) {
		g_set_error (error, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
			     "Couldn't decode WMF file");
		goto _wmf_error;
	}

	if (context->prepared_func != NULL)
		(* context->prepared_func) (pixbuf, NULL, context->user_data);

	if (context->updated_func != NULL)
		(* context->updated_func) (pixbuf, 0, 0, 
					   gdk_pixbuf_get_width (pixbuf), 
					   gdk_pixbuf_get_height (pixbuf), 
					   context->user_data);
	result = TRUE;

 _wmf_error:

	if (API != NULL) wmf_api_destroy (API);

	g_byte_array_free (context->data, TRUE);
	g_free (context);

	return result;
}
Beispiel #9
0
int wmf2svg_draw (PlotData* pdata)
{	int status = 0;

	float wmf_width;
	float wmf_height;

	float ratio_wmf;
	float ratio_bounds;

	unsigned long flags;
	unsigned long max_flags;

	static char* Default_Description = "wmf2svg";

	ImageContext IC;

	wmf_error_t err;

	wmf_svg_t* ddata = 0;

	wmfAPI* API = 0;

	wmfAPI_Options api_options;

	flags = 0;

	flags |= WMF_OPT_FUNCTION;
	api_options.function = wmf_svg_function;

	flags |= WMF_OPT_ARGS;
	api_options.argc = pdata->argc;
	api_options.argv = pdata->argv;
#ifndef DEBUG
	flags |= WMF_OPT_IGNORE_NONFATAL;
#endif
	err = wmf_api_create (&API,flags,&api_options);
	status = explicit_wmf_error ("wmf_api_create",err);

	if (status)
	{	if (API) wmf_api_destroy (API);
		return (status);
	}

	err = wmf_file_open (API,pdata->wmf_filename);
	status = explicit_wmf_error ("wmf_file_open",err);

	if (status)
	{	wmf_api_destroy (API);
		return (status);
	}

	err = wmf_scan (API,0,&(pdata->options.bbox));
	status = explicit_wmf_error ("wmf_scan",err);

	if (status)
	{	wmf_api_destroy (API);
		return (status);
	}

/* Okay, got this far, everything seems cool.
 */
	ddata = WMF_SVG_GetData (API);

	if (pdata->out)
	{	ddata->out = wmf_stream_create (API,pdata->out);
	}
	else
	{	ddata->out = wmf_ztream_create (API,pdata->outz);
	}

	if (pdata->options.Description) ddata->Description = pdata->options.Description;
	else                            ddata->Description = Default_Description;

	ddata->bbox = pdata->options.bbox;

	wmf_size (API,&wmf_width,&wmf_height);

	if ((wmf_width <= 0) || (wmf_height <= 0))
	{	fputs ("Bad image size - but this error shouldn't occur...\n",stderr);
		status = 1;
		wmf_api_destroy (API);
		return (status);
	}

	max_flags = pdata->max_flags;

	if ((wmf_width  > (float) pdata->max_width )
	 || (wmf_height > (float) pdata->max_height))
	{	if (max_flags == 0) max_flags = WMF2SVG_MAXPECT;
	}

	if (max_flags == WMF2SVG_MAXPECT) /* scale the image */
	{	ratio_wmf = wmf_height / wmf_width;
		ratio_bounds = (float) pdata->max_height / (float) pdata->max_width;

		if (ratio_wmf > ratio_bounds)
		{	ddata->height = pdata->max_height;
			ddata->width  = (unsigned int) ((float) ddata->height / ratio_wmf);
		}
		else
		{	ddata->width  = pdata->max_width;
			ddata->height = (unsigned int) ((float) ddata->width  * ratio_wmf);
		}
	}
	else if (max_flags == WMF2SVG_MAXSIZE) /* bizarre option, really */
	{	ddata->width  = pdata->max_width;
		ddata->height = pdata->max_height;
	}
	else
	{	ddata->width  = (unsigned int) ceil ((double) wmf_width );
		ddata->height = (unsigned int) ceil ((double) wmf_height);
	}

	if (pdata->inline_images)
	{	ddata->flags |= WMF_SVG_INLINE_IMAGES;
	}
	else
	{	IC.number = 0;
		IC.prefix = (char*) malloc (strlen (pdata->wmf_filename) + 1);
		if (IC.prefix)
		{	strcpy (IC.prefix,pdata->wmf_filename);
			if (wmf_strstr (pdata->wmf_filename,".wmf"))
			{	IC.prefix[strlen (pdata->wmf_filename)-4] = 0;
			}
			ddata->image.context = (void*) (&IC);
			ddata->image.name = image_name;
		}
	}

	if (status == 0)
	{	err = wmf_play (API,0,&(pdata->options.bbox));
		status = explicit_wmf_error ("wmf_play",err);
	}

	wmf_api_destroy (API);

	return (status);
}