# HG changeset patch
# User Patrick Mezard <pmezard@gmail.com>
# Date 1185114109 -7200
# Node ID 713426631adf5e11cfe99939f4743847b8e74fc5
# Parent  cf67b5f3743d827c70f3d26da2b010f30d647522
hgk: enable mouse wheel on MouseWheel events.

At this point, mouse wheel still does not work under Windows.

diff --git a/contrib/hgk b/contrib/hgk
--- a/contrib/hgk
+++ b/contrib/hgk
@@ -299,6 +299,11 @@ proc readotherrefs {base dname excl} {
     }
 }
 
+proc allcansmousewheel {delta} {
+    set delta [expr -5*(int($delta)/abs($delta))]
+    allcanvs yview scroll $delta units
+}
+
 proc error_popup msg {
     set w .error
     toplevel $w
@@ -470,6 +475,7 @@ proc makewindow {} {
 
     bindall <1> {selcanvline %W %x %y}
     #bindall <B1-Motion> {selcanvline %W %x %y}
+    bindall <MouseWheel> "allcansmousewheel %D"
     bindall <ButtonRelease-4> "allcanvs yview scroll -5 units"
     bindall <ButtonRelease-5> "allcanvs yview scroll 5 units"
     bindall <2> "allcanvs scan mark 0 %y"