Initial import

diff --git a/filemgmt.tcl b/filemgmt.tcl
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+++ b/filemgmt.tcl
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+#
+# Copyright 2004, 2005 University of Zagreb, Croatia.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+# This product includes software developed by the University of Zagreb,
+# Croatia and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# This work was supported in part by Croatian Ministry of Science
+# and Technology through the research contract #IP-2003-143.
+#
+
+
+#
+# currentFile
+#    relative or absolute path to the current configuration file
+# 
+# fileTypes
+#    types that will be displayed when opening new file 
+#
+# 
+# procedures used for loading and storing the configuration file:
+#
+# newFile 
+#   - creates an empty project
+#
+# openFile
+#   - loads configuration from currentFile   
+#
+# saveFile {selectedFile} 
+#   - saves current configuration to a file named selectedFile 
+#     unless the file name is an empty string
+#
+# fileOpenStartUp
+#   - opens the file named as command line argument
+# 
+# fileNewDialogBox
+#   - opens message box to optionally save the changes 
+#
+# fileOpenDialogBox
+#   - opens dialog box for selecting a file to open
+#
+# fileSaveDialogBox
+#   - opens dialog box for saving a file under new name if there is no
+#     current file 
+#
+# fileSaveAsDialogBox
+#   - opens dialog box for saving a file under new name  
+
+
+set currentFile ""
+
+set fileTypes {{"IMUNES network configuration" {.imn} }
+           { "All files" {*}}}
+
+
+proc newFile {} {
+    global currentFile 
+
+    vimageCleanup
+    loadCfg ""
+    redrawAll
+    set currentFile ""
+    wm title . "IMUNES"
+}
+
+
+proc openFile {} {
+    global currentFile 
+    global undolevel
+    global redolevel
+    global undolog
+    global activetool
+    
+    set fileName [file tail $currentFile]
+    wm title . "IMUNES $fileName"
+    set fileId [open $currentFile r]
+    set cfg ""
+    foreach entry [read $fileId] {
+        lappend cfg $entry
+    }
+    close $fileId
+    loadCfg $cfg
+    redrawAll
+    set undolevel 0
+    set redolevel 0
+    set undolog(0) $cfg 
+    set activetool select
+}
+
+
+proc saveFile { selectedFile } {
+    global currentFile 
+    if { $selectedFile != ""} {
+        set currentFile $selectedFile
+        set fileName [file tail $currentFile]
+        wm title . "IMUNES $fileName"
+        set fileId [open $currentFile w]
+        dumpCfg file $fileId
+        close $fileId
+       .bottom.textbox config -text "Saved $fileName"
+    }
+}
+
+
+proc fileOpenStartUp {} {
+    global argv
+    global currentFile
+
+    if { $argv != "" } {
+        set currentFile $argv
+        openFile
+    }
+}
+
+
+proc fileNewDialogBox {} {
+    global currentFile
+
+    set choice [tk_messageBox -type yesnocancel -default yes\
+          -message "Save changes?" -icon question]
+    
+    if { $choice != "cancel"} {
+        if { $choice == "yes"} {
+            fileSaveDialogBox    
+            newFile
+        } else {
+            newFile
+        }
+    }
+}
+
+
+proc fileOpenDialogBox {} {
+    global currentFile 
+    global fileTypes
+    set selectedFile [tk_getOpenFile -filetypes $fileTypes]
+    if { $selectedFile != ""} {
+        set currentFile $selectedFile
+        openFile
+    }
+}
+
+
+proc fileSaveDialogBox {} {
+    global currentFile 
+    global fileTypes
+    
+    if { $currentFile == "" } {
+        set selectedFile [tk_getSaveFile -filetypes $fileTypes -initialfile\
+                   untitled -defaultextension .imn]
+        saveFile $selectedFile
+    } else {
+        saveFile $currentFile
+    }
+}
+
+
+proc fileSaveAsDialogBox {} {
+    global currentFile 
+    global fileTypes
+    set selectedFile [tk_getSaveFile -filetypes $fileTypes -initialfile\
+               untitled -defaultextension .imn]
+
+    saveFile $selectedFile 
+}