0023185: DrawAppliInit must be loaded from current directory

1. File src/DrawResources/DrawAppliInit removed;
   code loading QA commands moved from DrawAppliInit to DrawDefaults (temporarily)

2. In src/DrawResources/DrawDefaults:
   - change of tcl_precision removed (following advise in Tcl 8.5 documentation)
   - code loading file init.tcl removed as obsolete
   - if environment variable CSF_DrawAppliInit is defined, it is assumed to
     be the name of the application-defined file to load; otherwise
     it is searched as file DrawAppliInit in current directory

DrawAppliInit removed from FILES

src/DrawResources/DrawAppliInit

@@ -1,18 +0,0 @@
-global tcl_platform
-
-if {[array get env QA_DUMP] != "" && $env(QA_DUMP) == "1"} {
-    set env(CSF_DrawPluginQADefaults) $env(CASROOT)/src/DrawResources/.
-    ###catch {pload ALL}
-    catch {pload FULL}
-    #catch {pload -DrawPluginProducts ALL}
-    catch {pload -DrawPluginProducts OMF CANONICALRECOGNITION EMESH PARASOLID DXF SAT }
-    catch {pload QAcommands}
-
-    ###foreach h [array names Draw_Groups] {
-    ###	foreach f $Draw_Groups($h) {
-    ###		QARebuild $f
-    ###	}
-    ###}
-
-catch {source $env(CSF_DrawPluginQADefaults)/QARebuildCommands}
-}

src/DrawResources/DrawDefault

@@ -1,9 +1,14 @@
-set tcl_interactive 1
+# This script is to be executed automatically at DRAWEXE start.
-set tcl_precision 17
+#
+# For that to happen, either environment DRAWDEFAULT should be set pointing
+# to this file, or CASROOT variable should be set, so that the script is
+# found as $CASROOT/src/DrawResources/DrawDefault
 
-if [info exists library] {
+# indicate that DRAW is interactive environment
-  source [file join $library init.tcl]
+set tcl_interactive 1
-}
+
+# define location of standard DRAW scripts; normally it is 
+# $CASROOT/src/DrawResources
 set dir ""
 if { [info exists env(DRAWHOME) ] } { 
   set dir $env(DRAWHOME)  
@@ -11,22 +16,20 @@ if { [info exists env(DRAWHOME) ] } {
   if { [info exists env(CASROOT) ] } {
     set dir [file join $env(CASROOT) src DrawResources]
   } else {
-    puts " CASROOT is Mandatory to Run OpenCascade"
+    puts "Warning: CASROOT is not defined, some features may not load correctly"
+    set dir [file dirname [info script]]
   }
 }
 
-# san - 02/08/2002 - In Tcl8.3 it is no longer necessary to load Tix explicitly on WNT
+# load standard DRAW scripts
-#if { [info exists env(STATION)] } {
+if { [file isdirectory $dir] } { 
-#  if { $env(STATION) == "wnt" } {
+  foreach script {StandardCommands.tcl Geometry.tcl StandardViews.tcl} {
-#    load tix8183.dll Tix
+    if [file exist [file join $dir $script]] {
-#  }
+      source [file join $dir $script]
-#}
+    }
-
+  }
-if { [file exist  $dir] } { 
-  source [file join $dir StandardCommands.tcl]
-  source [file join $dir StandardViews.tcl]
-  source [file join $dir Geometry.tcl]
 
+  # and TK extensions
   set stationname $tcl_platform(platform)
   if [info exists tk_version] {
     source [file join $dir DrawTK.tcl]
@@ -35,8 +38,29 @@ if { [file exist  $dir] } {
       wm iconbitmap . -default [file join $dir lamp.ico]
     }
   }
+}
 
-  if { [ file readable [ file join $dir DrawAppliInit ] ] } {
+# load application-defined initialization script, which is expected to 
-    source [file join $dir DrawAppliInit ]
+# be found either in the file pointed by environment variable CSF_DrawAppliInit,
+# or in the file DrawAppliInit in the current directory
+set draw_appli_init_file DrawAppliInit
+if { [info exists env(CSF_DrawAppliInit)] } {
+  set draw_appli_init_file $env(CSF_DrawAppliInit)
+} 
+if { [file readable $draw_appli_init_file] } {
+  if { [catch {source $draw_appli_init_file} res] } {
+    puts "Warning: problem while loading file $draw_appli_init_file: $res"
   }
 } 
+
+# Temporary: load specific QA commands and handlers
+if {[array get env QA_DUMP] != "" && $env(QA_DUMP) == "1"} {
+    set env(CSF_DrawPluginQADefaults) $env(CASROOT)/src/DrawResources/.
+    catch {pload FULL}
+    catch {pload -DrawPluginProducts OMF CANONICALRECOGNITION EMESH PARASOLID DXF SAT }
+    catch {pload QAcommands}
+    catch {source $env(CSF_DrawPluginQADefaults)/QARebuildCommands}
+}
+
+# silent return from the script
+return

src/DrawResources/FILES

@@ -31,4 +31,3 @@ srcinc:::DrawPlugin
 srcinc:::TKTopTest.tcl
 srcinc:::dftree.tcl
 srcinc:::QARebuildCommands
-srcinc:::DrawAppliInit