Fix [f60c54bec69540893fccfd2b4021b91b4321cf61|f60c54bec6]: Combobox does not retrieve -postoffset value from correct style

2 files changed, 11 insertions, 1 deletions

diff --git a/library/ttk/combobox.tcl b/library/ttk/combobox.tcl
index 03821a2..6ceccef 100644
--- a/library/ttk/combobox.tcl
+++ b/library/ttk/combobox.tcl
@@ -368,7 +368,8 @@ proc ttk::combobox::PlacePopdown {cb popdown} {
     set y [winfo rooty $cb]
     set w [winfo width $cb]
     set h [winfo height $cb]
-    set postoffset [ttk::style lookup TCombobox -postoffset {} {0 0 0 0}]
+    set style [$cb cget -style]
+    set postoffset [ttk::style lookup $style -postoffset {} {0 0 0 0}]
     foreach var {x y w h} delta $postoffset {
     	incr $var $delta
     }
diff --git a/tests/ttk/combobox.test b/tests/ttk/combobox.test
index 43f3cf1..35ded6c 100644
--- a/tests/ttk/combobox.test
+++ b/tests/ttk/combobox.test
@@ -45,6 +45,15 @@ test combobox-2.4 "current -- value not in list" -body {
 
 test combobox-2.end "Cleanup" -body { destroy .cb }
 
+test combobox-3 "Read postoffset value dynamically from current style" -constraints unix -body {
+    ttk::combobox .cb -values [list a b c] -style "DerivedStyle.TCombobox"
+    pack .cb -expand true -fill both 
+    ttk::style configure DerivedStyle.TCombobox -postoffset [list 25 0 0 0]
+    ttk::combobox::Post .cb
+    winfo x .cb.popdown
+} -result 25 -cleanup {
+    destroy .cb
+}
 
 test combobox-1890211 "ComboboxSelected event after listbox unposted" -body {
     # whitebox test...