From 848aadf95cd5a28674c7ee3b11ecfdcbe7aabbc8 Mon Sep 17 00:00:00 2001
From: Emmanuel Lepage Vallee <elv1313@gmail.com>
Date: Sat, 18 Oct 2014 01:17:46 -0400
Subject: [PATCH] wibox.layout: Add fixed and flex layouts widget spacing
 property

---
 lib/wibox/layout/fixed.lua.in | 22 +++++++++++++++-------
 lib/wibox/layout/flex.lua.in  | 27 ++++++++++++++++++---------
 2 files changed, 33 insertions(+), 16 deletions(-)

diff --git a/lib/wibox/layout/fixed.lua.in b/lib/wibox/layout/fixed.lua.in
index 28a1ea41..33c3ad16 100644
--- a/lib/wibox/layout/fixed.lua.in
+++ b/lib/wibox/layout/fixed.lua.in
@@ -19,7 +19,7 @@ local fixed = {}
 -- @param height The available height.
 -- @return The total space needed by the layout.
 function fixed:draw(wibox, cr, width, height)
-    local pos = 0
+    local pos,spacing = 0,self._spacing or 0
 
     for k, v in pairs(self.widgets) do
         local x, y, w, h, _
@@ -30,7 +30,7 @@ function fixed:draw(wibox, cr, width, height)
             if k ~= #self.widgets or not self._fill_space then
                 _, h = base.fit_widget(v, w, h);
             end
-            pos = pos + h
+            pos = pos + h + spacing
             in_dir = h
         else
             x, y = pos, 0
@@ -38,12 +38,12 @@ function fixed:draw(wibox, cr, width, height)
             if k ~= #self.widgets or not self._fill_space then
                 w, _ = base.fit_widget(v, w, h);
             end
-            pos = pos + w
+            pos = pos + w + spacing
             in_dir = w
         end
 
-        if (self.dir == "y" and pos > height) or
-            (self.dir ~= "y" and pos > width) then
+        if (self.dir == "y" and pos-spacing > height) or
+            (self.dir ~= "y" and pos-spacing > width) then
             break
         end
         base.draw_widget(wibox, cr, v, x, y, w, h)
@@ -90,10 +90,12 @@ function fixed:fit(orig_width, orig_height)
         end
     end
 
+    local spacing = ((self._spacing or 0)*(#self.widgets-1))
+
     if self.dir == "y" then
-        return used_max, used_in_dir
+        return used_max, used_in_dir + spacing
     end
-    return used_in_dir, used_max
+    return used_in_dir + spacing, used_max
 end
 
 --- Reset a fixed layout. This removes all widgets from the layout.
@@ -145,6 +147,12 @@ function fixed.vertical()
     return get_layout("y")
 end
 
+-- Add spacing between each layout widgets
+function fixed:set_spacing(spacing)
+    self._spacing = spacing
+    self:emit_signal("widget::updated")
+end
+
 return fixed
 
 -- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
diff --git a/lib/wibox/layout/flex.lua.in b/lib/wibox/layout/flex.lua.in
index 1a63ff0d..083735e6 100644
--- a/lib/wibox/layout/flex.lua.in
+++ b/lib/wibox/layout/flex.lua.in
@@ -24,14 +24,15 @@ end
 -- @param height The available height.
 -- @return The total space needed by the layout.
 function flex:draw(wibox, cr, width, height)
-    local pos = 0
-
+    local pos,spacing = 0,self._spacing or 0
     local num = #self.widgets
+    local total_spacing = (spacing*(num-1))
+
     local space_per_item
     if self.dir == "y" then
-        space_per_item = height / num
+        space_per_item = height / num - total_spacing/num
     else
-        space_per_item = width / num
+        space_per_item = width / num - total_spacing/num
     end
 
     if self._max_widget_size then
@@ -49,10 +50,10 @@ function flex:draw(wibox, cr, width, height)
         end
         base.draw_widget(wibox, cr, v, x, y, w, h)
 
-        pos = pos + space_per_item
+        pos = pos + space_per_item + spacing
 
-        if (self.dir == "y" and pos >= height) or
-            (self.dir ~= "y" and pos >= width) then
+        if (self.dir == "y" and pos-spacing >= height) or
+            (self.dir ~= "y" and pos-spacing >= width) then
             break
         end
     end
@@ -100,10 +101,12 @@ function flex:fit(orig_width, orig_height)
             #self.widgets * self._max_widget_size)
     end
 
+    local spacing = ((self._spacing or 0)*(#self.widgets-1))
+
     if self.dir == "y" then
-        return used_in_other, used_in_dir
+        return used_in_other, used_in_dir + spacing
     end
-    return used_in_dir, used_in_other
+    return used_in_dir + spacing, used_in_other
 end
 
 function flex:reset()
@@ -145,6 +148,12 @@ function flex.vertical()
     return get_layout("y")
 end
 
+-- Add spacing between each layout widgets
+function flex:set_spacing(spacing)
+    self._spacing = spacing
+    self:emit_signal("widget::updated")
+end
+
 return flex
 
 -- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80