git-gui: use a tristate to control the case mode in the searchbar

The config is now called gui.search.case and can have the three values:
no/yes/smart. yes is the default.

It also resets the case detection in smart mode, when the entry field was
cleared by the use.

Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

diff --git a/lib/search.tcl b/lib/search.tcl
index 04a316bbb27897ebd2247934db03c978988d0487..ef1e55521d7cea10e280f720ad700a4cd4b71d65 100644 (file)
--- a/lib/search.tcl
+++ b/lib/search.tcl
@@ -26,11 +26,20 @@ constructor new {i_w i_text args} {
        set ctext  $i_text
 
        set default_regexpsearch [is_config_true gui.search.regexp]
-       set smartcase [is_config_true gui.search.smartcase]
-       if {$smartcase} {
+       switch -- [get_config gui.search.case] {
+       no {
                set default_casesensitive 0
-       } else {
+               set smartcase 0
+       }
+       smart {
+               set default_casesensitive 0
+               set smartcase 1
+       }
+       yes -
+       default {
                set default_casesensitive 1
+               set smartcase 0
+       }
        }
 
        set history [list]
@@ -157,12 +166,10 @@ method _incrsearch {} {
        if {[catch {$ctext index anchor}]} {
                $ctext mark set anchor [_get_new_anchor $this]
        }
-       if {$smartcase} {
-               if {[regexp {[[:upper:]]} $searchstring]} {
+       if {$searchstring ne {}} {
+               if {$smartcase && [regexp {[[:upper:]]} $searchstring]} {
                        set casesensitive 1
                }
-       }
-       if {$searchstring ne {}} {
                set here [_do_search $this anchor mlen]
                if {$here ne {}} {
                        $ctext see $here
@@ -175,6 +182,9 @@ method _incrsearch {} {
                        #$w.ent configure -background lightpink
                        $w.ent state pressed
                }
+       } elseif {$smartcase} {
+               # clearing the field resets the smart case detection
+               set casesensitive 0
        }
 }