From b2cce66c3f6e26d1d5442e30b8324218932e11a3 Mon Sep 17 00:00:00 2001
From: Javier Sancho <jsf@jsancho.org>
Date: Sat, 23 May 2020 09:16:18 +0200
Subject: [PATCH] <gui-scrollbar> add-scrollbar!

---
 irrlicht.scm     |  2 ++
 irrlicht/gui.scm | 18 ++++++++++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/irrlicht.scm b/irrlicht.scm
index 1fc0c4f..738a339 100644
--- a/irrlicht.scm
+++ b/irrlicht.scm
@@ -45,6 +45,7 @@
                <gui-environment>
                <gui-font>
                <gui-image>
+               <gui-scrollbar>
                <gui-skin>
                <gui-static-text>
                <irrlicht-device>
@@ -72,6 +73,7 @@
                add-image!
                add-internal-point!
                add-octree-scene-node!
+               add-scrollbar!
                add-sphere-scene-node!
                add-static-text!
                begin-scene
diff --git a/irrlicht/gui.scm b/irrlicht/gui.scm
index 86afd9c..75adff1 100644
--- a/irrlicht/gui.scm
+++ b/irrlicht/gui.scm
@@ -67,6 +67,13 @@
     (let ((addImage (get-irrlicht-proc "addImage" gui-environment parent)))
       (addImage gui-environment image pos use-alpha-channel parent id text))))
 
+(define-method (add-scrollbar! (gui-environment <gui-environment>) horizontal rectangle . rest)
+  (let-keywords rest #f
+        ((parent (make <gui-element>))
+         (id -1))
+    (let ((addScrollBar (get-irrlicht-proc "addScrollBar" gui-environment parent)))
+      (addScrollBar gui-environment horizontal rectangle parent id))))
+
 (define-method (add-static-text! (gui-environment <gui-environment>) text rectangle . rest)
   (let-keywords rest #f
         ((border #f)
@@ -94,8 +101,8 @@
   (let ((getSkin (get-irrlicht-proc "getSkin" gui-environment)))
     (getSkin gui-environment)))
 
-(export <gui-environment> add-button! add-image! add-static-text! draw-all get-built-in-font
-        get-font get-skin)
+(export <gui-environment> add-button! add-image! add-scrollbar! add-static-text! draw-all
+        get-built-in-font get-font get-skin)
 
 
 ;; IGUIStaticText
@@ -141,3 +148,10 @@
   (irr-class #:init-value "IGUIButton"))
 
 (export <gui-button>)
+
+
+;; IGUIScrollBar
+(define-class <gui-scrollbar> (<gui-element>)
+  (irr-class #:init-value "IGUIScrollBar"))
+
+(export <gui-scrollbar>)
-- 
2.39.2