dev bump ver (1.1.12)

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: ggkegg
 Type: Package
 Title: KEGG pathway visualization by ggplot2
-Version: 1.1.11
+Version: 1.1.12
 Authors@R: person("Noriaki", "Sato", email = "[email protected]", role = c("cre", "aut"))
 Description: This package aims to import, parse, and analyze KEGG data such as KEGG PATHWAY and KEGG MODULE. The package supports visualizing KEGG information using ggplot2 and ggraph through using the grammar of graphics. The package enables the direct visualization of the results from various omics analysis packages.
 License: MIT + file LICENSE

NAMESPACE

@@ -3,6 +3,7 @@
 S3method(ggplot_add,geom_kegg)
 S3method(ggplot_add,geom_node_rect_kegg)
 S3method(ggplot_add,overlay_raw_map)
+export(add_title)
 export(append_cp)
 export(append_label_position)
 export(assign_deseq2)

R/overlay_functions.R

@@ -200,7 +200,7 @@ ggkeggsave <- function(filename, plot, dpi=300, wscale=90, hscale=90) {
 #' @export
 #' @importFrom grDevices dev.off png
 #' @import gtable
-#' @return output the image
+#' @return output the image and return the path
 #' @examples
 #' \dontrun{
 #'     ouput_overlay_image(ggraph(pathway("hsa04110")))
@@ -301,4 +301,36 @@ output_overlay_image <- function(gg, with_legend=TRUE,
         out <- paste0(pid, "_ggkegg.png")
     }
     image_write(flat, out)
+    return(out)
+}
+
+
+
+#' addTitle
+#' 
+#' Add the title to the image produced by output_overlay_image
+#' using magick.
+#' 
+#' @param out the image
+#' @param title the title
+#' @param size the size
+#' @param height title height
+#' @param color bg color
+#' @param titleColor title color
+#' @param gravity positioning of the title in the blank image
+#' @export
+#' @return output the image
+add_title <- function(out, title=NULL, size=20, height=30, color="white",
+	titleColor="black", gravity="west") {
+
+	img <- image_read(out)
+	info <- image_info(img)
+	w <- info$width
+	h <- info$height
+	blank <- image_blank(width=w, height=height, color=color)
+	imganno <- image_annotate(blank, title, size = size,
+		color=titleColor, gravity=gravity)
+	res <- image_append(c(imganno, img), stack=TRUE)
+	image_write(res, out)
+	return(res)
 }