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file-svg: Use rsvg_handle_new_from_gfile_sync() instead of GIOChannel

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The latter is obsolete, and rsvg_handle_write()/close() are deprecated
anyway.

(cherry picked from commit 16660c5928)
This commit is contained in:
Federico Mena Quintero
2019-07-22 17:06:04 -05:00
committed by Michael Natterer
parent 38e87c2d16
commit b7f22216e9
1 changed files with 35 additions and 104 deletions
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125
plug-ins/common/file-svg.c
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@ -413,62 +413,22 @@ load_rsvg_pixbuf (const gchar *filename,
{
GdkPixbuf *pixbuf = NULL;
RsvgHandle *handle;
GIOChannel *io;
gchar *uri;
GIOStatus status = G_IO_STATUS_NORMAL;
gboolean success = TRUE;
GFile *file;
io = g_io_channel_new_file (filename, "r", error);
if (!io)
return NULL;
file = g_file_new_for_path (filename);
g_io_channel_set_encoding (io, NULL, NULL);
handle = rsvg_handle_new_from_gfile_sync (file, RSVG_HANDLE_FLAGS_NONE, NULL, error);
handle = rsvg_handle_new ();
rsvg_handle_set_dpi (handle, vals->resolution);
g_object_unref (file);
/* set the base URI so that librsvg can resolve relative paths */
uri = g_filename_to_uri (filename, NULL, NULL);
if (uri)
if (!handle)
{
gchar *p = strrchr (uri, '/');
if (p)
*p = '\0';
rsvg_handle_set_base_uri (handle, uri);
g_free (uri);
return NULL;
}
rsvg_handle_set_dpi (handle, vals->resolution);
rsvg_handle_set_size_callback (handle, load_set_size_callback, vals, NULL);
while (success && status != G_IO_STATUS_EOF)
{
gchar buf[8192];
gsize len;
status = g_io_channel_read_chars (io, buf, sizeof (buf), &len, error);
switch (status)
{
case G_IO_STATUS_ERROR:
success = FALSE;
break;
case G_IO_STATUS_EOF:
success = rsvg_handle_close (handle, error);
break;
case G_IO_STATUS_NORMAL:
success = rsvg_handle_write (handle,
(const guchar *) buf, len, error);
break;
case G_IO_STATUS_AGAIN:
break;
}
}
g_io_channel_unref (io);
if (success)
pixbuf = rsvg_handle_get_pixbuf (handle);
g_object_unref (handle);
@ -478,76 +438,48 @@ load_rsvg_pixbuf (const gchar *filename,
static GtkWidget *size_label = NULL;
/* This function retrieves the pixel size from an SVG file. Parsing
* stops after the first chunk that provided the parser with enough
* information to determine the size. This is usually the opening
* <svg> element and should thus be in the first chunk (1024 bytes).
*/
/* This function retrieves the pixel size from an SVG file. */
static gboolean
load_rsvg_size (const gchar *filename,
SvgLoadVals *vals,
GError **error)
{
RsvgHandle *handle;
GIOChannel *io;
GIOStatus status = G_IO_STATUS_NORMAL;
gboolean success = TRUE;
gboolean done = FALSE;
GFile *file;
RsvgDimensionData dim;
gboolean has_size;
io = g_io_channel_new_file (filename, "r", error);
if (!io)
file = g_file_new_for_path (filename);
handle = rsvg_handle_new_from_gfile_sync (file, RSVG_HANDLE_FLAGS_NONE, NULL, error);
g_object_unref (file);
if (!handle)
{
return FALSE;
}
g_io_channel_set_encoding (io, NULL, NULL);
handle = rsvg_handle_new ();
rsvg_handle_set_dpi (handle, vals->resolution);
vals->width = SVG_DEFAULT_SIZE;
vals->height = SVG_DEFAULT_SIZE;
while (success && status != G_IO_STATUS_EOF && (! done))
{
gchar buf[1024];
gsize len;
RsvgDimensionData dim = { 0, 0, 0.0, 0.0 };
status = g_io_channel_read_chars (io, buf, sizeof (buf), &len, error);
switch (status)
{
case G_IO_STATUS_ERROR:
success = FALSE;
break;
case G_IO_STATUS_EOF:
success = rsvg_handle_close (handle, error);
if (success)
{
rsvg_handle_get_dimensions (handle, &dim);
if (dim.width > 0 && dim.height > 0)
{
vals->width = dim.width;
vals->height = dim.height;
done = TRUE;
}
}
break;
case G_IO_STATUS_NORMAL:
success = rsvg_handle_write (handle,
(const guchar *) buf, len, error);
break;
case G_IO_STATUS_AGAIN:
break;
has_size = TRUE;
}
else
{
vals->width = SVG_DEFAULT_SIZE;
vals->height = SVG_DEFAULT_SIZE;
has_size = FALSE;
}
if (size_label)
{
if (done)
if (has_size)
{
gchar *text = g_strdup_printf (_("%d × %d"),
vals->width, vals->height);
@ -561,13 +493,12 @@ load_rsvg_size (const gchar *filename,
}
}
g_io_channel_unref (io);
g_object_unref (handle);
if (vals->width < 1) vals->width = 1;
if (vals->height < 1) vals->height = 1;
return success;
return TRUE;
}