From 3f5313f70836eb1468738b31f31e1715cdf3e198 Mon Sep 17 00:00:00 2001
From: LaChal <lachal@laposte.net>
Date: Thu, 22 Mar 2018 22:58:05 +0100
Subject: [PATCH] Check boxes are now iterated and highlighted using 'Tab' key.

It is an 'new feature', see commit #4ab20968e2a4a45db8f0dd1535084875f5336113 for activation.
---
 albow/controls.py | 4 ++++
 albow/theme.py    | 6 ++++++
 albow/widget.py   | 8 +++++++-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/albow/controls.py b/albow/controls.py
index c297c03e3..7f3091695 100644
--- a/albow/controls.py
+++ b/albow/controls.py
@@ -366,6 +366,10 @@ class CheckWidget(Widget):
     border_width = 1
     check_mark_tweak = 2
 
+    if __builtins__.get("mcenf_tab_to_next"):
+        tab_stop = True
+        highlight_color = ThemeProperty('highlight_color')
+
     smooth = ThemeProperty('smooth')
 
     def __init__(self, **kwds):
diff --git a/albow/theme.py b/albow/theme.py
index d0977465e..18eec84f5 100644
--- a/albow/theme.py
+++ b/albow/theme.py
@@ -164,6 +164,12 @@ def get_font(self, cls, name):
 root.CheckWidget = Theme('CheckWidget')
 root.CheckWidget.smooth = False
 root.CheckWidget.border_color = root.Field.border_color
+root.CheckWidget.highlight_color = (0, 128, 255)
+
+if __builtins__.get("mcenf_tab_to_next"):
+    root.CheckBox = Theme("CheckBox)")
+    # Let use the same highlight color as for buttons
+    root.CheckBox.highlight_color = root.Button.highlight_color
 
 root.Dialog = Theme('Dialog')
 root.Dialog.bg_color = (40, 40, 40)
diff --git a/albow/widget.py b/albow/widget.py
index bfcc9e10a..072252106 100644
--- a/albow/widget.py
+++ b/albow/widget.py
@@ -343,7 +343,13 @@ def draw_all(self, surface):
             self.draw(surface)
             bw = self.border_width
             if bw:
-                bc = self.border_color or self.fg_color
+                if __builtins__.get("mcenf_tab_to_next"):
+                    if self.has_focus() and hasattr(self, "highlight_color"):
+                        bc = self.highlight_color
+                    else:
+                        bc = self.border_color or self.fg_color
+                else:
+                    bc = self.border_color or self.fg_color
                 frame_rect(surface, bc, surf_rect, bw)
             for widget in self.subwidgets:
                 sub_rect = widget.rect