gitk: add text wrapping preferences

Add a new preference "wrapdefault" which allows enabling char/word wrap.
Impacts all text in the ctext widget for which no other preference exists.

Also make the (existing) preference "wrapcomment" configurable graphically.
Its setting impacts only the "comment" part of the ctext widget.

Signed-off-by: Christoph Sommer <sommer@cms-labs.org>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>

gitk

@@ -2089,7 +2089,7 @@ proc makewindow {} {
     global diffcontextstring diffcontext
     global ignorespace
     global maincursor textcursor curtextcursor
-    global rowctxmenu fakerowmenu mergemax wrapcomment
+    global rowctxmenu fakerowmenu mergemax wrapcomment wrapdefault
     global highlight_files gdttype
     global searchstring sstring
     global bgcolor fgcolor bglist fglist diffcolors diffbgcolors selectbgcolor
@@ -2431,7 +2431,7 @@ proc makewindow {} {
     set ctext .bleft.bottom.ctext
     text $ctext -background $bgcolor -foreground $fgcolor \
         -state disabled -undo 0 -font textfont \
-        -yscrollcommand scrolltext -wrap none \
+        -yscrollcommand scrolltext -wrap $wrapdefault \
         -xscrollcommand ".bleft.bottom.sbhorizontal set"
     if {$have_tk85} {
         $ctext conf -tabstyle wordprocessor
@@ -11576,7 +11576,7 @@ proc create_prefs_page {w} {
 
 proc prefspage_general {notebook} {
     global NS maxwidth maxgraphpct showneartags showlocalchanges
-    global tabstop limitdiffs autoselect autosellen extdifftool perfile_attrs
+    global tabstop wrapcomment wrapdefault limitdiffs autoselect autosellen extdifftool perfile_attrs
     global hideremotes want_ttk have_ttk maxrefs web_browser
 
     set page [create_prefs_page $notebook.general]
@@ -11607,6 +11607,17 @@ proc prefspage_general {notebook} {
     ${NS}::label $page.tabstopl -text [mc "Tab spacing"]
     spinbox $page.tabstop -from 1 -to 20 -width 4 -textvariable tabstop
     grid x $page.tabstopl $page.tabstop -sticky w
+
+    ${NS}::label $page.wrapcommentl -text [mc "Wrap comment text"]
+    ${NS}::combobox $page.wrapcomment -values {none char word} -state readonly \
+        -textvariable wrapcomment
+    grid x $page.wrapcommentl $page.wrapcomment -sticky w
+
+    ${NS}::label $page.wrapdefaultl -text [mc "Wrap other text"]
+    ${NS}::combobox $page.wrapdefault -values {none char word} -state readonly \
+        -textvariable wrapdefault
+    grid x $page.wrapdefaultl $page.wrapdefault -sticky w
+
     ${NS}::checkbutton $page.ntag -text [mc "Display nearby tags/heads"] \
         -variable showneartags
     grid x $page.ntag -sticky w
@@ -11725,7 +11736,7 @@ proc doprefs {} {
     global oldprefs prefstop showneartags showlocalchanges
     global uicolor bgcolor fgcolor ctext diffcolors selectbgcolor markbgcolor
     global tabstop limitdiffs autoselect autosellen extdifftool perfile_attrs
-    global hideremotes want_ttk have_ttk
+    global hideremotes want_ttk have_ttk wrapcomment wrapdefault
 
     set top .gitkprefs
     set prefstop $top
@@ -11734,7 +11745,7 @@ proc doprefs {} {
         return
     }
     foreach v {maxwidth maxgraphpct showneartags showlocalchanges \
-                   limitdiffs tabstop perfile_attrs hideremotes want_ttk} {
+                   limitdiffs tabstop perfile_attrs hideremotes want_ttk wrapcomment wrapdefault} {
         set oldprefs($v) [set $v]
     }
     ttk_toplevel $top
@@ -11860,7 +11871,7 @@ proc prefscan {} {
     global oldprefs prefstop
 
     foreach v {maxwidth maxgraphpct showneartags showlocalchanges \
-                   limitdiffs tabstop perfile_attrs hideremotes want_ttk} {
+                   limitdiffs tabstop perfile_attrs hideremotes want_ttk wrapcomment wrapdefault} {
         global $v
         set $v $oldprefs($v)
     }
@@ -11874,7 +11885,8 @@ proc prefsok {} {
     global oldprefs prefstop showneartags showlocalchanges
     global fontpref mainfont textfont uifont
     global limitdiffs treediffs perfile_attrs
-    global hideremotes
+    global hideremotes wrapcomment wrapdefault
+    global ctext
 
     catch {destroy $prefstop}
     unset prefstop
@@ -11923,6 +11935,12 @@ proc prefsok {} {
     if {$hideremotes != $oldprefs(hideremotes)} {
         rereadrefs
     }
+    if {$wrapcomment != $oldprefs(wrapcomment)} {
+        $ctext tag conf comment -wrap $wrapcomment
+    }
+    if {$wrapdefault != $oldprefs(wrapdefault)} {
+        $ctext configure -wrap $wrapdefault
+    }
 }
 
 proc formatdate {d} {
@@ -12392,6 +12410,7 @@ set downarrowlen 5
 set mingaplen 100
 set cmitmode "patch"
 set wrapcomment "none"
+set wrapdefault "none"
 set showneartags 1
 set hideremotes 0
 set maxrefs 20
@@ -12497,7 +12516,7 @@ config_check_tmp_exists 50
 
 set config_variables {
     mainfont textfont uifont tabstop findmergefiles maxgraphpct maxwidth
-    cmitmode wrapcomment autoselect autosellen showneartags maxrefs visiblerefs
+    cmitmode wrapcomment wrapdefault autoselect autosellen showneartags maxrefs visiblerefs
     hideremotes showlocalchanges datetimeformat limitdiffs uicolor want_ttk
     bgcolor fgcolor uifgcolor uifgdisabledcolor colors diffcolors mergecolors
     markbgcolor diffcontext selectbgcolor foundbgcolor currentsearchhitbgcolor