4 files changed, 27 insertions, 0 deletions
diff --git a/src/Gtk/Widgets/Sheet.dcl b/src/Gtk/Widgets/Sheet.dcl
index c5e1f58..781cdd9 100644
--- a/src/Gtk/Widgets/Sheet.dcl
+++ b/src/Gtk/Widgets/Sheet.dcl
@@ -8,6 +8,7 @@ definition module Gtk.Widgets.Sheet
 
 from Gtk.State import :: GtkM
 from Gtk.Tune import class tune
+from Gtk.Types import :: GtkCSSClass
 from Gtk.Widgets import
 	class gtkWidget, :: GtkWidget,
 	class gtkContainer, :: GtkContainer
@@ -27,6 +28,7 @@ ensureDimensions :: !Int !Int !GtkSheet -> GtkM GtkSheet
 setColumnTitle :: !Int !String !GtkSheet -> GtkM GtkSheet
 setRowTitle :: !Int !String !GtkSheet -> GtkM GtkSheet
 setCellText :: !Int !Int !String !GtkSheet -> GtkM GtkSheet
+setCSSClassForRange :: !GtkCSSClass !(!Int,!Int) !(!Int,!Int) !GtkSheet -> GtkM GtkSheet
 
 getActiveCell :: !GtkSheet -> GtkM (Maybe (Int,Int))
 setActiveCell :: !Int !Int !GtkSheet -> GtkM GtkSheet
diff --git a/src/Gtk/Widgets/Sheet.icl b/src/Gtk/Widgets/Sheet.icl
index 07789df..4bdf2ac 100644
--- a/src/Gtk/Widgets/Sheet.icl
+++ b/src/Gtk/Widgets/Sheet.icl
@@ -53,6 +53,11 @@ setCellText row col text sheet =
 	toState (gtk_sheet_set_cell_text sheet row col text) >>|
 	pure sheet
 
+setCSSClassForRange :: !GtkCSSClass !(!Int,!Int) !(!Int,!Int) !GtkSheet -> GtkM GtkSheet
+setCSSClassForRange (Class cls) top_left bottom_right sheet =
+	toState (gtk_sheet_range_set_css_class sheet top_left bottom_right cls) >>|
+	pure sheet
+
 getActiveCell :: !GtkSheet -> GtkM (Maybe (Int,Int))
 getActiveCell sheet =
 	toStateR (gtk_sheet_get_active_cell sheet) >>= \cell=:(row,col)
diff --git a/src/Gtk/Widgets/Sheet/Internal.dcl b/src/Gtk/Widgets/Sheet/Internal.dcl
index b372c54..27c7945 100644
--- a/src/Gtk/Widgets/Sheet/Internal.dcl
+++ b/src/Gtk/Widgets/Sheet/Internal.dcl
@@ -28,3 +28,5 @@ gtk_sheet_cell_delete :: !Pointer !Int !Int !.a -> .a
 gtk_sheet_get_active_cell :: !Pointer !.a -> (!(!Int, !Int), !.a)
 gtk_sheet_set_active_cell :: !Pointer !Int !Int !.a -> .a
 gtk_sheet_set_cell_text :: !Pointer !Int !Int !String !.a -> .a
+
+gtk_sheet_range_set_css_class :: !Pointer !(!Int,!Int) !(!Int,!Int) !String !.a -> .a
diff --git a/src/Gtk/Widgets/Sheet/Internal.icl b/src/Gtk/Widgets/Sheet/Internal.icl
index 69459b6..060d6ab 100644
--- a/src/Gtk/Widgets/Sheet/Internal.icl
+++ b/src/Gtk/Widgets/Sheet/Internal.icl
@@ -1,5 +1,7 @@
 implementation module Gtk.Widgets.Sheet.Internal
 
+import StdEnv
+
 import System._Pointer
 
 gtk_sheet_new :: !Int !Int !String !.a -> (!Pointer, !.a)
@@ -123,3 +125,19 @@ where
 	set _ _ _ _ _ = code {
 		ccall gtk_sheet_set_cell_text "pIIs:V:A"
 	}
+
+gtk_sheet_range_set_css_class :: !Pointer !(!Int,!Int) !(!Int,!Int) !String !.a -> .a
+gtk_sheet_range_set_css_class sheet (r1,c1) (r2,c2) cls env
+	# range = IF_INT_64_OR_32 {#c1<<32+r1,c2<<32+r2} {#r1,c1,r2,c2}
+	= set sheet (get_ptr range + IF_INT_64_OR_32 24 16) (packString cls) env
+where
+	set :: !Pointer !Pointer !String !.a -> .a
+	set _ _ _ _ = code {
+		ccall gtk_sheet_range_set_css_class "pps:V:A"
+	}
+
+	get_ptr :: !{#Int} -> Pointer
+	get_ptr _ = code {
+		push_a_b 0
+		pop_a 1
+	}