[elpa] externals/svg-lib 6a83751 01/32: Initial import

[ELPA Syncer]

branch: externals/svg-lib
commit 6a83751ec4390e71b788e285cbc1c222b52cf7e4
Author: Nicolas P. Rougier <Nicolas.Rougier@inria.fr>
Commit: Nicolas P. Rougier <Nicolas.Rougier@inria.fr>

    Initial import
---
 LICENSE.txt     | 674 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 README.org      |   5 +
 screenshot.png  | Bin 0 -> 468252 bytes
 svg-lib-demo.el |  38 ++++
 svg-lib.el      | 497 +++++++++++++++++++++++++++++++++++++++++
 5 files changed, 1214 insertions(+)

diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,674 @@
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+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/README.org b/README.org
new file mode 100644
index 0000000..34134d2
--- /dev/null
+++ b/README.org
@@ -0,0 +1,5 @@
+
+*** SVG Library
+
+[[file:screenshot.png]]
+
diff --git a/screenshot.png b/screenshot.png
new file mode 100644
index 0000000..6276b76
Binary files /dev/null and b/screenshot.png differ
diff --git a/svg-lib-demo.el b/svg-lib-demo.el
new file mode 100644
index 0000000..dae4d1d
--- /dev/null
+++ b/svg-lib-demo.el
@@ -0,0 +1,38 @@
+
+(dotimes (i 5)
+  (insert-image (svg-lib-tag "TODO" :padding 1
+                             :family "Roboto Mono" :weight (* (+ i 2) 100))))
+
+     
+
+(dotimes (i 10)
+  (insert-image (svg-lib-tag "TODO" :padding 1 :stroke (/ i 4.0))))
+
+          
+
+(dotimes (i 10)
+  (insert-image (svg-lib-tag "TODO" :padding 1 :stroke 2 :radius i)))
+
+          
+
+(dotimes (i 10)
+  (insert-image (svg-lib-progress-bar (/ (+ i 1) 10.0)
+                    :width 5 :margin 1 :stroke 2 :padding 2)))
+
+          
+
+(insert-image (svg-lib-progress-bar .75
+                   :bar-color "#999999" :line-color "#999999" :margin 0
+                   :fill-color "#f0f0f0" :radius 0 :stroke .5 :padding 0))
+
+ 
+
+(insert-image (svg-lib-progress-bar 0.75 :radius 8 :stroke 2 :padding 0))
+
+ 
+
+
+(insert-image (svg-lib-icon "material" "star" :stroke 0))
+(insert-image (svg-lib-icon "material" "star" :stroke 1.5))
+(insert-image (svg-lib-icon "material" "star" :inverse t))
+      
diff --git a/svg-lib.el b/svg-lib.el
new file mode 100644
index 0000000..1c8a8f9
--- /dev/null
+++ b/svg-lib.el
@@ -0,0 +1,497 @@
+;;; svg-lib.el --- SVG tags, bars & icons -*- lexical-binding: t -*-
+
+;; Copyright (C) 2021 Nicolas P. Rougier
+
+;; Author: Nicolas P. Rougier <Nicolas.Rougier@inria.fr>
+;; Homepage: https://github.com/rougier/svg-lib
+;; Keywords: convenience
+;; Version: 0.1
+
+;; Package-Requires: ((emacs "27.1"))
+
+;; This file is not part of GNU Emacs.
+
+;; This file is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3, or (at your option)
+;; any later version.
+
+;; This file is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; For a full copy of the GNU General Public License
+;; see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Usage example:
+;;
+;; (insert-image (svg-lib-tag "TODO"))
+;; (insert-image (svg-lib-progress-bar 0.33))
+;; (insert-image (svg-lib-icon "material" "star" :stroke 0))
+;;
+;;
+;; (dotimes (i 10)
+;;   (insert-image (svg-lib-progress-bar (/ (+ i 1) 10.0)
+;;                     :width 5 :margin 1 :stroke 2 :padding 2)))
+;;
+;;
+;; Icons ares created by parsing remote collections whose license are
+;; compatibles with GNU Emacs:
+;;
+;; - Boxicons (https://github.com/atisawd/boxicons), available under a
+;;   Creative Commons 4.0 license.  As of version 2.07 (December 2020),
+;;   this collection offers 1500 icons in two styles (regular & solid).
+;;   Gallery is available at https://boxicons.com/
+;;
+;; - Octicons (https://github.com/primer/octicons), available under a
+;;   MIT License with some usage restriction for the GitHub logo.  As of
+;;   version 11.2.0 (December 2020), this collection offers 201 icons.
+;;   Gallery available at https://primer.style/octicons/
+;;
+;; - Material (https://github.com/google/material-design-icons),
+;;   available under an Apache 2.0 license.  As of version 4.0.0
+;;   (December 2020), this collection offers 500+ icons in 4 styles
+;;   (filled, outlined, rounded, sharp).  Gallery available at
+;;   https://material.io/resources/icons/?style=baseline
+;;
+;; - Bootstrap (https://github.com/twbs/icons), available under an MIT
+;;   license.  As of version 1.2.1 (December 2020), this collection
+;;   offers 1200+ icons in 2 styles (regular & filled).  Gallery
+;;   available at https://icons.getbootstrap.com/
+;;
+;; The default size of an icon is exactly 2x1 characters such that it
+;; can be inserted inside a text without disturbing alignment.
+;;
+;; Note: Each icon is cached locally to speed-up loading the next time
+;;       you use it.  If for some reason the cache is corrupted you can
+;;       force reload using the svg-icon-get-data function.
+;;
+;; If you want to add new collections (i.e. URL), make sure the icons
+;; are monochrome, their size is consistent.
+
+;;; Code:
+(require 'svg)
+
+(defgroup svg-lib nil
+  "SVG tags, bars & icons."
+  :group 'convenience
+  :prefix "svg-lib-")
+
+(defcustom svg-lib-default-margin 1
+  "Default margin in characters."
+  :type 'integer
+  :group 'svg-lib)
+
+(defcustom svg-lib-default-padding 1
+  "Default padding in characters for tags, in pixels for bars & icons."
+  :type 'integer
+  :group 'svg-lib)
+
+(defcustom svg-lib-default-radius 3
+  "Default radius in pixels."
+  :type 'integer
+  :group 'svg-lib)
+
+(defcustom svg-lib-default-zoom 1
+  "Default zoom level for icons."
+  :type 'integer
+  :group 'svg-lib)
+
+(defcustom svg-lib-default-width 20
+  "Default width of progress bar in characters."
+  :type 'integer
+  :group 'svg-lib)
+
+(defcustom svg-lib-default-stroke 1
+  "Default stroke width in pixels."
+  :type 'integer
+  :group 'svg-lib)
+
+(defface svg-lib-default-face
+  `((t :foreground ,(face-attribute 'default :foreground)
+       :background ,(face-attribute 'default :background)
+       :box (:line-width ,svg-lib-default-stroke
+             :color ,(face-attribute 'default :foreground)
+             :style nil)
+       :family ,(face-attribute 'default :family)
+       :weight ,(face-attribute 'default :weight)
+       :height ,(if (display-graphic-p)
+                    (- (face-attribute 'default :height) 20)
+                  1)))
+  "Default face used for all SVG objects"
+:group 'svg-lib)
+
+;; SVG font weights translation
+(defvar svg-lib--font-weights '((thin       . 100)
+                                (ultralight . 200)
+                                (light      . 300)
+                                (regular    . 400)
+                                (medium     . 500)
+                                (semibold   . 600)
+                                (bold       . 700)
+                                (extrabold  . 800)
+                                (black      . 900)))
+
+(defcustom  svg-lib-icon-collections
+  '(("bootstrap" .
+     "https://icons.getbootstrap.com/icons/%s.svg";)
+    ("material" .
+     
"https://raw.githubusercontent.com/Templarian/MaterialDesign/master/svg/%s.svg";)
+    ("octicons" .
+     
"https://raw.githubusercontent.com/primer/octicons/master/icons/%s-24.svg";)
+    ("boxicons" .
+     "https://boxicons.com/static/img/svg/regular/bx-%s.svg";))
+    
+  "Various icons collections stored as (name . base-url).
+
+The name of the collection is used as a pointer for the various
+icon creation methods.  The base-url is a string containing a %s
+such that is can be replaced with the name of a specific icon.
+User is responsible for finding/giving proper names for a given
+collection (there are way too many to store them)."
+
+  :type '(alist :key-type (string :tag "Name")
+                :value-type (string :tag "URL"))
+  :group 'svg-lib)
+
+
+
+(defun svg-lib-convert-color (color-name)
+  "Convert Emacs COLOR-NAME to #rrggbb form.
+If COLOR-NAME is unknown to Emacs, then return COLOR-NAME as-is."
+  (let ((rgb-color (color-name-to-rgb color-name)))
+    (if rgb-color
+        (apply #'color-rgb-to-hex (append rgb-color '(2)))
+      color-name)))
+
+(defun svg-lib-foreground (face)
+  "Return the foreground color of FACE, ensuring it is specified."
+  (face-attribute face :foreground nil 'default))
+
+(defun svg-lib-background (face)
+  "Return the background color of FACE, ensuring it is specified."
+  (face-attribute face :background nil 'default))
+
+
+;; --- Tags ------------------------------------------------------------
+(defun svg-lib-tag (label &rest args)
+  "Create an SVG image displaying LABEL in a rounded box.
+
+Visual aspect can be controlled using the ARGS parameters:
+
+  :face FACE              The face to use
+  :radius RADIUS          The radius in pixels of the box
+  :margin MARGIN          The (external) margin in characters
+  :padding PADDING        The (internal) padding in characters
+  :text-color TEXT-COLOR  The color of the label
+  :line-color LINE-COLOR  The border color of the box
+  :fill-color FILL-COLOR  The background color of the box
+  :inverse INVERSE        Whether to swap text and fill colors
+  :stroke STROKE          The width in pixels of the border of the box
+  :weight WEIGHT          The font weight of the label
+                            (takes precedence over face)
+  :family FAMILY          The font family of the label
+                            (takes precedence over face)"
+  
+  (let* ((face          (or (plist-get args :face)
+                            'svg-lib-default-face))
+         (padding       (or (plist-get args :padding)
+                            svg-lib-default-padding))
+         (margin        (or (plist-get args :margin)
+                            svg-lib-default-margin))
+         (radius        (or (plist-get args :radius)
+                            svg-lib-default-radius))
+         (inverse       (or (plist-get args :inverse)
+                            nil))
+         
+         (text-color (or (plist-get args :text-color)
+                         (if inverse
+                             (svg-lib-background face)
+                           (svg-lib-foreground face))))
+         
+         (fill-color (or (plist-get args :fill-color)
+                         (if inverse
+                             (svg-lib-foreground face)
+                           (svg-lib-background face))))
+
+         (line-color (or (plist-get args :line-color)
+                         (plist-get args :text-color)
+                         (plist-get (face-attribute face :box) :color)
+                         text-color))
+         
+         (stroke     (or (plist-get args :stroke)
+                         (plist-get (face-attribute face :box) :line-width)
+                         svg-lib-default-stroke))
+         
+         (weight     (or (plist-get args :weight)
+                         (face-attribute face :weight nil 'default)))
+         (weight     (or (cdr (assoc weight svg-lib--font-weights))
+                         weight))
+
+         (family     (or (plist-get args :family)
+                         (face-attribute face :family)))
+
+         (size       (/ (face-attribute face :height nil 'default) 10))
+         (ascent     (elt (font-info (format "%s:%d" family size)) 8))
+         
+         (tag-char-width  (window-font-width nil face))
+         (tag-char-height (window-font-height nil face))
+         (txt-char-width  (window-font-width))
+         (txt-char-height (window-font-height))
+         
+         (tag-width (* (+ (length label) padding) txt-char-width))
+         (tag-height (* txt-char-height 0.9))
+
+         (svg-width (+ tag-width (* margin txt-char-width)))
+         (svg-height tag-height)
+
+         (tag-x (/ (- svg-width tag-width) 2))
+         (text-x (+ tag-x (/ (- tag-width (* (length label) tag-char-width)) 
2)))
+         (text-y ascent)
+         (svg (svg-create svg-width svg-height)))
+
+    (if (>= stroke 0.25)
+        (svg-rectangle svg tag-x 0 tag-width tag-height
+                       :fill        (svg-lib-convert-color line-color)
+                       :rx          radius))
+    (svg-rectangle svg (+ tag-x (/ stroke 2.0)) (/ stroke 2.0)
+                   (- tag-width stroke) (- tag-height stroke)
+                   :fill        (svg-lib-convert-color fill-color)
+                   :rx          (- radius (/ stroke 2.0)))
+    (svg-text      svg label
+                   :font-family family
+                   :font-weight weight
+                   :font-size   size
+                   :fill        (svg-lib-convert-color text-color)
+                   :x           text-x
+                   :y           text-y)
+    (svg-image svg :scale 1 :ascent 'center)))
+
+
+
+;; --- Progress bars ---------------------------------------------------
+(defun svg-lib-progress-bar (value &rest args)
+  "Create a SVG progress bar image with value VALUE.
+
+Visual aspect can be controlled using the ARGS parameters:
+
+  :face FACE              The face to use
+  :width WIDTH            Total width in characters of the bar
+  :radius RADIUS          The radius in pixels of the bar
+  :margin MARGIN          The (external) margin in characters
+  :padding PADDING        The (internal) padding in pixels
+  :bar-color TEXT-COLOR   The color of the progress bar
+  :line-color LINE-COLOR  The border color of the bar
+  :fill-color FILL-COLOR  The background color of the bar
+  :inverse INVERSE        Whether to swap bar and fill colors
+  :stroke STROKE          The width in pixels of the border of the bar"
+
+  (let* ((face          (or (plist-get args :face)
+                            'svg-lib-default-face))
+         (padding       (or (plist-get args :padding)
+                            svg-lib-default-padding))
+         (margin        (or (plist-get args :margin)
+                            svg-lib-default-margin))
+         (radius        (or (plist-get args :radius)
+                            svg-lib-default-radius))
+         (inverse       (or (plist-get args :inverse)
+                            nil))
+
+         (bar-color (or (plist-get args :bar-color)
+                        (if inverse
+                            (svg-lib-background face)
+                          (svg-lib-foreground face))))
+
+         (fill-color (or (plist-get args :fill-color)
+                         (if inverse
+                             (svg-lib-foreground face)
+                           (svg-lib-background face))))
+
+         (line-color (or (plist-get args :line-color)
+                         (plist-get args :text-color)
+                         (plist-get (face-attribute face :box) :color)
+                         bar-color))
+         
+         (stroke     (or (plist-get args :stroke)
+                         (plist-get (face-attribute face :box) :line-width)
+                         svg-lib-default-stroke))
+         (width      (or (plist-get args :width)
+                         svg-lib-default-width))
+         
+         (weight     (or (plist-get args :weight)
+                         (face-attribute face :weight)))
+         (weight     (cdr (assoc weight svg-lib--font-weights)))
+
+         (family     (or (plist-get args :family)
+                         (face-attribute face :family)))
+
+         (size       (face-attribute face :height))
+         (size       (if (eq size 'unspecified)
+                         (face-attribute 'default :height) size))
+         (size       (/ size 10))
+         (ascent (elt (font-info (format "%s:%d" family size)) 8))
+         
+         (tag-char-width  (window-font-width nil face))
+         (tag-char-height (window-font-height nil face))
+         (txt-char-width  (window-font-width))
+         (txt-char-height (window-font-height))
+         
+         (tag-width (* width txt-char-width))
+         (tag-height (* txt-char-height 0.9))
+
+         (svg-width (+ tag-width (* margin txt-char-width)))
+         (svg-height tag-height)
+
+         (tag-x (/ (- svg-width tag-width) 2))
+         (svg (svg-create svg-width svg-height)))
+
+    (if (>= stroke 0.25)
+        (svg-rectangle svg tag-x 0 tag-width tag-height
+                       :fill        (svg-lib-convert-color line-color)
+                       :rx          radius))
+    (svg-rectangle svg (+ tag-x (/ stroke 2.0))
+                       (/ stroke 2.0)
+                       (- tag-width stroke)
+                       (- tag-height stroke)
+                   :fill  (svg-lib-convert-color fill-color)
+                   :rx    (- radius (/ stroke 2.0)))
+
+    (svg-rectangle svg (+ tag-x (/ stroke 2.0) padding)
+                       (+ (/ stroke 2.0) padding)
+                       (- (* value tag-width) stroke (* 2 padding))
+                       (- tag-height stroke (* 2 padding))
+                   :fill (svg-lib-convert-color bar-color)
+                   :rx   (- radius (/ stroke 2.0)))
+    (svg-image svg :scale 1 :ascent 'center)))
+
+
+
+;; --- Icons -----------------------------------------------------------
+(defun svg-lib--icon-get-data (collection name &optional force-reload)
+  "Retrieve icon NAME from COLLECTION.
+
+Cached version is returned if it exists unless FORCE-RELOAD is t."
+  
+  ;; Build url from collection and name without checking for error
+  (let ((url (format (cdr (assoc collection svg-lib-icon-collections)) name)))
+
+    ;; Get data only if not cached or if explicitely requested
+    (if (or force-reload (not (url-is-cached url)))
+        (let ((url-automatic-caching t)
+              (filename (url-cache-create-filename url)))
+          (with-current-buffer (url-retrieve-synchronously url)
+            (write-region (point-min) (point-max) filename))))
+
+    ;; Get data from cache
+    (let ((buffer (generate-new-buffer " *temp*")))
+      (with-current-buffer buffer
+        (url-cache-extract (url-cache-create-filename url)))
+      (with-temp-buffer
+        (url-insert-buffer-contents buffer url)
+        (xml-parse-region (point-min) (point-max))))))
+
+(defun svg-lib-icon (collection name &rest args)
+  "Create a SVG image displaying icon NAME from COLLECTION.
+
+Default size is 2x1 characters.
+Visual aspect can be controlled using the ARGS parameters:
+
+  :face FACE              The face to use
+  :zoom ZOOM              Size of the icon (interger value)
+  :radius RADIUS          The radius in pixels of the box
+  :margin MARGIN          The (external) margin in characters
+  :padding PADDING        The (internal) padding in characters
+  :icon-color TEXT-COLOR  The color of the icon
+  :line-color LINE-COLOR  The border color of the box
+  :fill-color FILL-COLOR  The background color of the box
+  :inverse INVERSE        Whether to swap text and fill colors
+  :stroke STROKE          The width in pixels of the border of the box"
+  
+  (let* ((root (svg-lib--icon-get-data collection name))
+
+         (face          (or (plist-get args :face)
+                            'svg-lib-default-face))
+         (padding       (or (plist-get args :padding)
+                            svg-lib-default-padding))
+         (margin        (or (plist-get args :margin)
+                            svg-lib-default-margin))
+         (radius        (or (plist-get args :radius)
+                            svg-lib-default-radius))
+         (zoom          (or (plist-get args :zoom)
+                            svg-lib-default-zoom))
+         (inverse       (or (plist-get args :inverse)
+                            nil))
+         (icon-color (or (plist-get args :icon-color)
+                         (if inverse
+                             (svg-lib-background face)
+                           (svg-lib-foreground face))))
+         (fill-color (or (plist-get args :fill-color)
+                         (if inverse
+                             (svg-lib-foreground face)
+                           (svg-lib-background face))))
+         (line-color (or (plist-get args :line-color)
+                         (plist-get args :text-color)
+                         (plist-get (face-attribute face :box) :color)
+                         icon-color))
+         (stroke     (or (plist-get args :stroke)
+                         (plist-get (face-attribute face :box) :line-width)
+                         svg-lib-default-stroke))
+
+         ;; Read original viewbox
+         (viewbox (cdr (assq 'viewBox (xml-node-attributes (car root)))))
+         (viewbox (mapcar 'string-to-number (split-string viewbox)))
+         (view-x (nth 0 viewbox))
+         (view-y (nth 1 viewbox))
+         (view-width (nth 2 viewbox))
+         (view-height (nth 3 viewbox))
+
+         ;; Set icon size (in pixels) to 2x1 characters
+         (svg-width  (* (window-font-width)  2))
+         (svg-height (* (window-font-height) 1))
+
+         ;; Compute the new viewbox (adjust y origin and height)
+         (ratio (/ view-width svg-width))
+         (delta-h (ceiling (/ (- view-height (* svg-height ratio) ) 2)))
+         (view-y (- view-y delta-h))
+         (view-height (+ view-height (* delta-h 2)))
+
+         ;; Zoom the icon by using integer factor only
+         (zoom (max 1 (truncate (or zoom 1))))
+         (svg-width  (* svg-width zoom))
+         (svg-height (* svg-height zoom))
+
+         (svg-viewbox (format "%f %f %f %f"
+                              view-x view-y view-width view-height))
+         (f-ratio (/ (float view-width) (float svg-width)))
+         (transform (format "translate(%f,%f) scale(%f)"  view-x view-y 
f-ratio))
+         (svg (svg-create svg-width svg-height
+                          :viewBox svg-viewbox
+                          :stroke-width 0
+                          :fill (svg-lib-convert-color fill-color))))
+
+    (if (>= stroke 0.25)
+        (svg-rectangle svg 0 0 svg-width svg-height
+                           :fill (svg-lib-convert-color icon-color)
+                           :rx radius
+                           :transform transform))
+      (svg-rectangle svg (/ stroke 2.0) (/ stroke 2.0)
+                         (- svg-width stroke) (- svg-height stroke)
+                         :fill (svg-lib-convert-color fill-color)
+                         :rx  (- radius (/ stroke 2.0))
+                         :transform transform)
+
+    (dolist (item (xml-get-children (car root) 'path))
+      (let* ((attrs (xml-node-attributes item))
+             (path (cdr (assoc 'd attrs)))
+             (fill (or (cdr (assoc 'fill attrs))
+                       (svg-lib-convert-color icon-color))))
+        (message fill)
+        (svg-node svg 'path :d path :fill fill)))
+    (svg-image svg :ascent 'center :scale 1)))
+
+
+(provide 'svg-lib)
+;;; svg-lib.el ends here