GdkPixbuf* vfs_load_icon( GtkIconTheme* theme, const char* icon_name, int size )
{
GdkPixbuf* icon = NULL;
const char* file;
if ( !icon_name )
return NULL;
GtkIconInfo* inf = gtk_icon_theme_lookup_icon( theme, icon_name, size,
GTK_ICON_LOOKUP_USE_BUILTIN |
GTK_ICON_LOOKUP_FORCE_SIZE );
if ( !inf && icon_name[0] == '/' )
return gdk_pixbuf_new_from_file_at_size ( icon_name, size, size, NULL );
if( G_UNLIKELY( ! inf ) )
return NULL;
file = gtk_icon_info_get_filename( inf );
if( G_LIKELY( file ) )
icon = gdk_pixbuf_new_from_file_at_size( file, size, size, NULL );
else
{
icon = gtk_icon_info_get_builtin_pixbuf( inf );
g_object_ref( icon );
}
gtk_icon_info_free( inf );
/*
if( G_LIKELY( icon ) )
{
// scale down the icon if it's too big
int width, height;
height = gdk_pixbuf_get_height(icon);
width = gdk_pixbuf_get_width(icon);
if( G_UNLIKELY( height > size || width > size ) )
{
GdkPixbuf* scaled;
if( height > width )
{
width = size * height / width;
height = size;
}
else if( height < width )
{
height = size * width / height;
width = size;
}
else
height = width = size;
scaled = gdk_pixbuf_scale_simple( icon, width, height, GDK_INTERP_BILINEAR );
g_object_unref( icon );
icon = scaled;
}
}
*/
return icon;
}
/*! \fn GdkPixbuf* CDesktopAppChooser::m_LoadThemeIcon(GtkIconTheme* theme, const char* icon_name, int size)
\brief To load a icon contents found in theme icon pool.
\param[in] theme.
\param[in] icon_name.
\param[in] size.
\return PixelBuffer object representing the designated icon.
*/
GdkPixbuf* CDesktopAppChooser::m_LoadThemeIcon(GtkIconTheme* theme, const char* icon_name, int size)
{
GdkPixbuf *icon = NULL;
const char *file = NULL;
GtkIconInfo *info = gtk_icon_theme_lookup_icon(theme, icon_name, size, GTK_ICON_LOOKUP_USE_BUILTIN);
if( G_UNLIKELY(!info) )
return NULL;
file = gtk_icon_info_get_filename( info );
if( G_LIKELY( file ) )
icon = gdk_pixbuf_new_from_file( file, NULL );
else
icon = gtk_icon_info_get_builtin_pixbuf( info );
gtk_icon_info_free( info );
if( G_LIKELY( icon ) )
{
int height = gdk_pixbuf_get_height(icon);
int width = gdk_pixbuf_get_width(icon);
/* Scale down the icon if it's too big to be shown. */
if(G_UNLIKELY( (height > size) || (width > size) ))
{
GdkPixbuf *scaled = NULL;
if( height > width )
{
width = size * height / width;
height = size;
}
else if( height < width )
{
height = size * width / height;
width = size;
}
else
height = width = size;
scaled = gdk_pixbuf_scale_simple( icon, width, height, GDK_INTERP_BILINEAR );
g_object_unref( icon );
icon = scaled;
}
}
return icon;
}
static VALUE
rg_builtin_pixbuf(VALUE self)
{
return GOBJ2RVAL(gtk_icon_info_get_builtin_pixbuf(_SELF(self)));
}
/* Load image from file */
static void _xfdashboard_image_content_load_from_file(XfdashboardImageContent *self)
{
XfdashboardImageContentPrivate *priv;
gchar *lookupFilename;
gchar *filename;
g_return_if_fail(XFDASHBOARD_IS_IMAGE_CONTENT(self));
priv=self->priv;
filename=NULL;
/* Check if type of image is valid and all needed parameters are set */
g_return_if_fail(priv->type==XFDASHBOARD_IMAGE_TYPE_FILE);
g_return_if_fail(priv->iconName);
g_return_if_fail(priv->iconSize>0);
/* If path of icon filename is relative build absolute path by prefixing theme path ... */
if(!g_path_is_absolute(priv->iconName))
{
XfdashboardTheme *theme;
const gchar *themePath;
/* Get theme path */
theme=xfdashboard_application_get_theme();
g_object_ref(theme);
themePath=xfdashboard_theme_get_path(theme);
/* Build absolute path from theme path and given relative path to icon */
lookupFilename=g_build_filename(themePath, priv->iconName, NULL);
/* Release allocated resources */
g_object_unref(theme);
}
/* ... otherwise it is an absolute path already so just copy it */
else lookupFilename=g_strdup(priv->iconName);
/* If file does not exists then load fallback icon */
if(!g_file_test(lookupFilename, G_FILE_TEST_EXISTS))
{
GtkIconInfo *iconInfo;
g_warning(_("Icon file '%s' does not exist - trying fallback icon '%s'"),
priv->iconName,
priv->missingIconName);
iconInfo=gtk_icon_theme_lookup_icon(priv->iconTheme,
priv->missingIconName,
priv->iconSize,
#ifdef USE_GTK_BUILTIN_ICONS
GTK_ICON_LOOKUP_USE_BUILTIN);
#else
0);
#endif
if(!iconInfo)
{
g_error(_("Could not load fallback icon for file '%s'"), priv->iconName);
_xfdashboard_image_content_set_empty_image(self);
g_free(lookupFilename);
return;
}
/* Check if have to use built-in GdkPixbuf for icon ... */
filename=g_strdup(gtk_icon_info_get_filename(iconInfo));
#ifdef USE_GTK_BUILTIN_ICONS
if(!filename)
{
GdkPixbuf *iconPixbuf;
GError *error=NULL;
iconPixbuf=gtk_icon_info_get_builtin_pixbuf(iconInfo);
if(!clutter_image_set_data(CLUTTER_IMAGE(self),
gdk_pixbuf_get_pixels(iconPixbuf),
gdk_pixbuf_get_has_alpha(iconPixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width(iconPixbuf),
gdk_pixbuf_get_height(iconPixbuf),
gdk_pixbuf_get_rowstride(iconPixbuf),
&error))
{
g_warning(_("Failed to load image data into content for icon '%s': %s"),
priv->iconName,
error ? error->message : _("Unknown error"));
if(error)
{
g_error_free(error);
error=NULL;
}
}
else g_debug("Loaded fallback icon for file '%s' from built-in pixbuf", priv->iconName);
g_object_unref(iconPixbuf);
}
#endif
/* Release allocated resources */
g_object_unref(iconInfo);
}
