big shadows mac like for compiz

[gianluca.pettinello]

I'm using compiz as wm for xfce. I have a retina screen. Shadow radius can't be increase beyond 18px which is too little for an effect like mac osx.
For those who are interested in getting this effect attached a patch which I wrote.
I don't know how to submit it but it would be nice to have, I think
Cheers
Gianluca

diff -Nur ./compiz-0.9.13.1/gtk/window-decorator/gwd-settings.c ./compiz-0.9.13.1.patched/gtk/window-decorator/gwd-settings.c
--- compiz-0.9.13.1/gtk/window-decorator/gwd-settings.c 2016-11-11 17:20:40.000000000 +0100
+++ compiz-0.9.13.1.patched/gtk/window-decorator/gwd-settings.c 2017-08-13 10:33:17.463000954 +0200
@@ -29,16 +29,16 @@

 const gboolean USE_TOOLTIPS_DEFAULT = FALSE;

-const gdouble ACTIVE_SHADOW_RADIUS_DEFAULT = 8.0;
-const gdouble ACTIVE_SHADOW_OPACITY_DEFAULT = 0.5;
+const gdouble ACTIVE_SHADOW_RADIUS_DEFAULT = 75.0;
+const gdouble ACTIVE_SHADOW_OPACITY_DEFAULT = 0.35;
 const gint ACTIVE_SHADOW_OFFSET_X_DEFAULT = 1;
-const gint ACTIVE_SHADOW_OFFSET_Y_DEFAULT = 1;
+const gint ACTIVE_SHADOW_OFFSET_Y_DEFAULT = 25;
 const gchar *ACTIVE_SHADOW_COLOR_DEFAULT = "#00000000";

-const gdouble INACTIVE_SHADOW_RADIUS_DEFAULT = 8.0;
-const gdouble INACTIVE_SHADOW_OPACITY_DEFAULT = 0.5;
+const gdouble INACTIVE_SHADOW_RADIUS_DEFAULT = 75.0;
+const gdouble INACTIVE_SHADOW_OPACITY_DEFAULT = 0.35;
 const gint INACTIVE_SHADOW_OFFSET_X_DEFAULT = 1;
-const gint INACTIVE_SHADOW_OFFSET_Y_DEFAULT = 1;
+const gint INACTIVE_SHADOW_OFFSET_Y_DEFAULT = 25;
 const gchar *INACTIVE_SHADOW_COLOR_DEFAULT = "#00000000";

 const gint BLUR_TYPE_DEFAULT = BLUR_TYPE_NONE;
diff -Nur ./compiz-0.9.13.1/gtk/window-decorator/gwd-settings-xproperty-storage.c ./compiz-0.9.13.1.patched/gtk/window-decorator/gwd-settings-xproperty-storage.c
--- compiz-0.9.13.1/gtk/window-decorator/gwd-settings-xproperty-storage.c 2016-11-11 17:20:40.000000000 +0100
+++ compiz-0.9.13.1.patched/gtk/window-decorator/gwd-settings-xproperty-storage.c 2017-08-13 10:32:37.069665820 +0200
@@ -201,14 +201,14 @@
     }

     return gwd_settings_shadow_property_changed (storage->settings,
- (gdouble) MAX (0.0, MIN (aradius, 48.0)),
+ (gdouble) MAX (0.0, MIN (aradius, 120.0)),
                                                  (gdouble) MAX (0.0, MIN (aopacity, 6.0)),
- (gdouble) MAX (-16, MIN (ax_off, 16)),
- (gdouble) MAX (-16, MIN (ay_off, 16)),
+ (gdouble) MAX (-30, MIN (ax_off, 30)),
+ (gdouble) MAX (-30, MIN (ay_off, 30)),
                                                  active_shadow_color,
- (gdouble) MAX (0.0, MIN (iradius, 48.0)),
+ (gdouble) MAX (0.0, MIN (iradius, 120.0)),
                                                  (gdouble) MAX (0.0, MIN (iopacity, 6.0)),
- (gdouble) MAX (-16, MIN (ix_off, 16)),
- (gdouble) MAX (-16, MIN (iy_off, 16)),
+ (gdouble) MAX (-30, MIN (ix_off, 30)),
+ (gdouble) MAX (-30, MIN (iy_off, 30)),
                                                  inactive_shadow_color);
 }
diff -Nur ./compiz-0.9.13.1/plugins/decor/decor.xml.in ./compiz-0.9.13.1.patched/plugins/decor/decor.xml.in
--- compiz-0.9.13.1/plugins/decor/decor.xml.in 2017-08-13 10:28:41.729655355 +0200
+++ compiz-0.9.13.1.patched/plugins/decor/decor.xml.in 2017-08-13 10:31:10.646328644 +0200
@@ -23,9 +23,9 @@
   <option name="active_shadow_radius" type="float">
       <_short>Shadow Radius</_short>
       <_long>Drop shadow radius</_long>
- <default>8.0</default>
+ <default>75.0</default>
       <min>0.1</min>
- <max>18.0</max>
+ <max>120.0</max>
       <precision>0.1</precision>
   </option>
   <option name="active_shadow_opacity" type="float">
@@ -50,15 +50,15 @@
       <_short>Shadow Offset X</_short>
       <_long>Drop shadow X offset</_long>
       <default>1</default>
- <min>-16</min>
- <max>16</max>
+ <min>-30</min>
+ <max>30</max>
   </option>
   <option name="active_shadow_y_offset" type="int">
       <_short>Shadow Offset Y</_short>
       <_long>Drop shadow Y offset</_long>
- <default>1</default>
- <min>-16</min>
- <max>16</max>
+ <default>25</default>
+ <min>-30</min>
+ <max>30</max>
   </option>
      </subgroup>
      <subgroup>
@@ -66,9 +66,9 @@
   <option name="inactive_shadow_radius" type="float">
       <_short>Shadow Radius</_short>
       <_long>Drop shadow radius</_long>
- <default>8.0</default>
+ <default>75.0</default>
       <min>0.1</min>
- <max>13.0</max>
+ <max>120.0</max>
       <precision>0.1</precision>
   </option>
   <option name="inactive_shadow_opacity" type="float">
@@ -87,15 +87,15 @@
       <_short>Shadow Offset X</_short>
       <_long>Drop shadow X offset</_long>
       <default>1</default>
- <min>-16</min>
- <max>16</max>
+ <min>-30</min>
+ <max>30</max>
   </option>
   <option name="inactive_shadow_y_offset" type="int">
       <_short>Shadow Offset Y</_short>
       <_long>Drop shadow Y offset</_long>
- <default>1</default>
- <min>-16</min>
- <max>16</max>
+ <default>25</default>
+ <min>-30</min>
+ <max>30</max>
   </option>
      </subgroup>
      <option name="command" type="string">
diff -Nur ./compiz-0.9.13.1/plugins/decor/src/decor.cpp ./compiz-0.9.13.1.patched/plugins/decor/src/decor.cpp
--- compiz-0.9.13.1/plugins/decor/src/decor.cpp 2016-11-11 17:20:40.000000000 +0100
+++ compiz-0.9.13.1.patched/plugins/decor/src/decor.cpp 2017-08-13 10:31:43.232996761 +0200
@@ -3035,7 +3035,7 @@
        0,
        screen->root (),
        NULL)),
- mMenusClipGroup (CompMatch ("type=Dock | type=DropdownMenu | type=PopupMenu")),
+ mMenusClipGroup (CompMatch ("type=Dock")),
     mRequestor (screen->dpy (), screen->root (), &(decor[DECOR_ACTIVE])),
     mReleasePool (new PixmapReleasePool (
         boost::bind (XFreePixmap,