On Fri, 27 Jul 2007, Michael Barton wrote:

OK. I'll wait for your fix. I took a quick look and noted the following
behavior.

set default display font to A
launch font setting dialog for the barscale panel
the barscale font dialog shows A selected
select font B for the barscale
open the default display font dialog
it shows A
click OK without clicking on a font in the listbox
reopen the default display font dialog
it shows B

This suggests to me that there is a variable that is either 1) not getting
updated properly when OK is pressed or 2) the list selection is not moving
properly to show the selected font.

The attached patch fixes things a little bit (apply to latest CVS, after my updates today), by presetting the dfont variable before calling the select box, so it is pointing at the right font at the start. But it doesn't work 100% yet and the whole thing is a bit complicated. I think binding some events to the OK button instead of the select box change event is part of the solution though.

Paul
Index: dtext.tcl
===================================================================
RCS file: /home/grass/grassrepository/grass6/gui/tcltk/gis.m/dtext.tcl,v
retrieving revision 1.15
diff -u -r1.15 dtext.tcl
--- dtext.tcl   27 Jul 2007 14:28:33 -0000      1.15
+++ dtext.tcl   27 Jul 2007 17:00:46 -0000
@@ -110,9 +110,11 @@
        variable opt
 
        
+       set Gm::dfont $GmDtext::opt($id,1,font)
        Gm:DefaultFont dbarscale
        tkwait variable Gm::dfont
        set GmDtext::opt($id,1,font) $Gm::dfont
+       set Gm::dfont ""
 
 }
 
Index: gm.tcl
===================================================================
RCS file: /home/grass/grassrepository/grass6/gui/tcltk/gis.m/gm.tcl,v
retrieving revision 1.61
diff -u -r1.61 gm.tcl
--- gm.tcl      27 Jul 2007 14:28:33 -0000      1.61
+++ gm.tcl      27 Jul 2007 17:00:46 -0000
@@ -113,8 +113,6 @@
     variable prgtext
     variable mainwindow
     variable dfont 
-    variable fonttype
-    variable fontpath
     variable encoding
        global array filename # mon
 
@@ -232,8 +230,6 @@
     variable gm_mainframe
     variable tree
        variable moncount
-       variable fontpath
-       variable fonttype
        variable dfont
        variable ecoding
     global gmpath
@@ -246,9 +242,7 @@
     global env
     
     set env(GRASS_RENDER_IMMEDIATE) "TRUE"
-       set fontpath ""
-       set Gm::fonttype "grassfont"
-       set Gm::dfont "romans"
+       set Gm::dfont ""
        set Gm::encoding "ISO-8859-1"
 
        set moncount 1
@@ -502,9 +496,18 @@
     foreach item $fontlist {
        $fontlb insert end $item
     }
-    
-    if {![catch {set env(GRASS_FONT)}] && $env(GRASS_FONT) != ""} {
-       set fontindex [lsearch $fontlist $env(GRASS_FONT)]
+
+    # If $Gm::dfont is empty then it hasn't been set by a layer module
+    # before calling this procedure, so we should read the current
+    # default font from the GRASS_FONT environment variable
+    if {$Gm::dfont == ""} {    
+        if {![catch {set env(GRASS_FONT)}] && $env(GRASS_FONT) != ""} {
+           set Gm::dfont $env(GRASS_FONT)
+       }
+    }
+   
+    if {$Gm::dfont != ""} {
+       set fontindex [lsearch $fontlist $Gm::dfont]
        if {$fontindex > -1} {
                $fontlb selection set $fontindex
                $fontlb see $fontindex
@@ -554,6 +557,7 @@
 
        if { $source == "menu" && $dfont != "" } {
                set env(GRASS_FONT) $dfont
+               set dfont ""
        }
 
 };
Index: histogram.tcl
===================================================================
RCS file: /home/grass/grassrepository/grass6/gui/tcltk/gis.m/histogram.tcl,v
retrieving revision 1.21
diff -u -r1.21 histogram.tcl
--- histogram.tcl       27 Jul 2007 14:28:33 -0000      1.21
+++ histogram.tcl       27 Jul 2007 17:00:47 -0000
@@ -114,9 +114,11 @@
        variable opt
 
        
+       set Gm::dfont $GmHist::opt($id,1,font)
        Gm:DefaultFont dhist
        tkwait variable Gm::dfont
        set GmHist::opt($id,1,font) $Gm::dfont
+       set Gm::dfont ""
 
 }
 
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