tkfbox.tcl

genesis 2000 v9.1软件下载

	# should have been checked before tkFDialog_Update is called, so
	# we normally won't come to here. Anyways, give an error and abort
	# action.
	tk_messageBox -type ok -message \
	    "Cannot change to the directory \"$data(selectPath)\".\nPermission denied."\
	    -icon warning
	cd $appPWD
	return
    }

    # Turn on the busy cursor. BUG?? We haven't disabled X events, though,
    # so the user may still click and cause havoc ...
    #
    set entCursor [$data(ent) cget -cursor]
    set dlgCursor [$w         cget -cursor]
    $data(ent) config -cursor watch
    $w         config -cursor watch
    update idletasks
    
    tkIconList_DeleteAll $data(icons)

    # Make the dir list
    #
    foreach f [lsort -dictionary [glob -nocomplain .* *]] {
	if ![string compare $f .] {
	    continue
	}
	if ![string compare $f ..] {
	    continue
	}
	if [file isdir ./$f] {
	    if ![info exists hasDoneDir($f)] {
		tkIconList_Add $data(icons) $folder $f
		set hasDoneDir($f) 1
	    }
	}
    }
    # Make the file list
    #
    if ![string compare $data(filter) *] {
	set files [lsort -dictionary \
	    [glob -nocomplain .* *]]
    } else {
	set files [lsort -dictionary \
	    [eval glob -nocomplain $data(filter)]]
    }

    set top 0
    foreach f $files {
	if ![file isdir ./$f] {
	    if ![info exists hasDoneFile($f)] {
		tkIconList_Add $data(icons) $file $f
		set hasDoneFile($f) 1
	    }
	}
    }

    tkIconList_Arrange $data(icons)

    # Update the Directory: option menu
    #
    set list ""
    set dir ""
    foreach subdir [file split $data(selectPath)] {
	set dir [file join $dir $subdir]
	lappend list $dir
    }

    $data(dirMenu) delete 0 end
    set var [format %s(selectPath) $w]
    foreach path $list {
	$data(dirMenu) add command -label $path -command [list set $var $path]
    }

    # Restore the PWD to the application's PWD
    #
    cd $appPWD

    # turn off the busy cursor.
    #
    $data(ent) config -cursor $entCursor
    $w         config -cursor $dlgCursor
}

# tkFDialog_SetPathSilently --
#
# 	Sets data(selectPath) without invoking the trace procedure
#
proc tkFDialog_SetPathSilently {w path} {
    upvar #0 $w data

    trace vdelete  data(selectPath) w "tkFDialog_SetPath $w"
    set data(selectPath) $path
    trace variable data(selectPath) w "tkFDialog_SetPath $w"
}


# This proc gets called whenever data(selectPath) is set
#
proc tkFDialog_SetPath {w name1 name2 op} {
    upvar #0 $w data

    tkFDialog_UpdateWhenIdle $w
}

# This proc gets called whenever data(filter) is set
#
proc tkFDialog_SetFilter {w type} {
    upvar #0 $w data
    upvar \#0 $data(icons) icons

    set data(filter) [lindex $type 1]
    $data(typeMenuBtn) config -text [lindex $type 0] -indicatoron 1

    $icons(sbar) set 0.0 0.0
    
    tkFDialog_UpdateWhenIdle $w
}

# tkFDialogResolveFile --
#
#	Interpret the user's text input in a file selection dialog.
#	Performs:
#
#	(1) ~ substitution
#	(2) resolve all instances of . and ..
#	(3) check for non-existent files/directories
#	(4) check for chdir permissions
#
# Arguments:
#	context:  the current directory you are in
#	text:	  the text entered by the user
#	defaultext: the default extension to add to files with no extension
#
# Return vaue:
#	[list $flag $directory $file]
#
#	 flag = OK	: valid input
#	      = PATTERN	: valid directory/pattern
#	      = PATH	: the directory does not exist
#	      = FILE	: the directory exists by the file doesn't
#			  exist
#	      = CHDIR	: Cannot change to the directory
#	      = ERROR	: Invalid entry
#
#	 directory      : valid only if flag = OK or PATTERN or FILE
#	 file           : valid only if flag = OK or PATTERN
#
#	directory may not be the same as context, because text may contain
#	a subdirectory name
#
proc tkFDialogResolveFile {context text defaultext} {

    set appPWD [pwd]

    set path [tkFDialog_JoinFile $context $text]

    if {[file ext $path] == ""} {
	set path "$path$defaultext"
    }

    if [catch {file exists $path}] {
	return [list ERROR $path ""]
    }

    if [catch {if [file exists $path] {}}] {
	# This "if" block can be safely removed if the following code returns
	# an error. It currently (7/22/97) doesn't
	#
	#	file exists ~nonsuchuser
	#
	return [list ERROR $path ""]
    }

    if [file exists $path] {
	if [file isdirectory $path] {
	    if [catch {
		cd $path
	    }] {
		return [list CHDIR $path ""]
	    }
	    set directory [pwd]
	    set file ""
	    set flag OK
	    cd $appPWD
	} else {
	    if [catch {
		cd [file dirname $path]
	    }] {
		return [list CHDIR [file dirname $path] ""]
	    }
	    set directory [pwd]
	    set file [file tail $path]
	    set flag OK
	    cd $appPWD
	}
    } else {
	set dirname [file dirname $path]
	if [file exists $dirname] {
	    if [catch {
		cd $dirname
	    }] {
		return [list CHDIR $dirname ""]
	    }
	    set directory [pwd]
	    set file [file tail $path]
	    if [regexp {[*]|[?]} $file] {
		set flag PATTERN
	    } else {
		set flag FILE
	    }
	    cd $appPWD
	} else {
	    set directory $dirname
	    set file [file tail $path]
	    set flag PATH
	}
    }

    return [list $flag $directory $file]
}


# Gets called when the entry box gets keyboard focus. We clear the selection
# from the icon list . This way the user can be certain that the input in the 
# entry box is the selection.
#
proc tkFDialog_EntFocusIn {w} {
    upvar #0 $w data

    if [string compare [$data(ent) get] ""] {
	$data(ent) selection from 0
	$data(ent) selection to   end
	$data(ent) icursor end
    } else {
	$data(ent) selection clear
    }

    tkIconList_Unselect $data(icons)

    if ![string compare $data(type) open] {
	$data(okBtn) config -text "Open"
    } else {
	$data(okBtn) config -text "Save"
    }
}

proc tkFDialog_EntFocusOut {w} {
    upvar #0 $w data

    $data(ent) selection clear
}


# Gets called when user presses Return in the "File name" entry.
#
proc tkFDialog_ActivateEnt {w} {
    upvar #0 $w data

    set text [string trim [$data(ent) get]]
    set list [tkFDialogResolveFile $data(selectPath) $text \
		  $data(-defaultextension)]
    set flag [lindex $list 0]
    set path [lindex $list 1]
    set file [lindex $list 2]

    case $flag {
	OK {
	    if ![string compare $file ""] {
		# user has entered an existing (sub)directory
		set data(selectPath) $path
		$data(ent) delete 0 end
	    } else {
		tkFDialog_SetPathSilently $w $path
		set data(selectFile) $file
		tkFDialog_Done $w
	    }
	}
	PATTERN {
	    set data(selectPath) $path
	    set data(filter) $file
	}
	FILE {
	    if ![string compare $data(type) open] {
		tk_messageBox -icon warning -type ok \
		    -message "File \"[file join $path $file]\" does not exist."
		$data(ent) select from 0
		$data(ent) select to   end
		$data(ent) icursor end
	    } else {
		tkFDialog_SetPathSilently $w $path
		set data(selectFile) $file
		tkFDialog_Done $w
	    }
	}
	PATH {
	    tk_messageBox -icon warning -type ok \
		-message "Directory \"$path\" does not exist."
	    $data(ent) select from 0
	    $data(ent) select to   end
	    $data(ent) icursor end
	}
	CHDIR {
	    tk_messageBox -type ok -message \
	       "Cannot change to the directory \"$path\".\nPermission denied."\
		-icon warning
	    $data(ent) select from 0
	    $data(ent) select to   end
	    $data(ent) icursor end
	}
	ERROR {
	    tk_messageBox -type ok -message \
	       "Invalid file name \"$path\"."\
		-icon warning
	    $data(ent) select from 0
	    $data(ent) select to   end
	    $data(ent) icursor end
	}
    }
}

# Gets called when user presses the Alt-s or Alt-o keys.
#
proc tkFDialog_InvokeBtn {w key} {
    upvar #0 $w data

    if ![string compare [$data(okBtn) cget -text] $key] {
	tkButtonInvoke $data(okBtn)
    }
}

# Gets called when user presses the "parent directory" button
#
proc tkFDialog_UpDirCmd {w} {
    upvar #0 $w data
    global tcl_platform
    
    if { [string compare $data(selectPath) "/"] == 0 } {
	if {$tcl_platform(platform) == "windows"} {
	    tkFDialog_ask_for_drive $w
	}
       return 
    }
    if { [string match ?:/  $data(selectPath)] == 1 } {
       tkFDialog_ask_for_drive $w
       return
    }    

    set data(selectPath) [file dirname $data(selectPath)]
}

proc tkFDialog_ask_for_drive {w} {
   set TITLE "Drive Message"
   set MESSAGE "To change drive, enter drive\
              \nin 'File name' field (e.g. 'd:')"
   tk_messageBox -message $MESSAGE -parent $w -type ok -title $TITLE
}

# Join a file name to a path name. The "file join" command will break
# if the filename begins with ~
#
proc tkFDialog_JoinFile {path file} {
    if {[string match {~*} $file] && [file exists $path/$file]} {
	return [file join $path ./$file]
    } else {
	return [file join $path $file]
    }
}



# Gets called when user presses the "OK" button
#
proc tkFDialog_OkCmd {w} {
    upvar #0 $w data

    set text [tkIconList_Get $data(icons)]
    if [string compare $text ""] {
	set file [tkFDialog_JoinFile $data(selectPath) $text]
	if [file isdirectory $file] {
	    tkFDialog_ListInvoke $w $text
	    return
	}
    }

    tkFDialog_ActivateEnt $w
}

# Gets called when user presses the "Cancel" button
#
proc tkFDialog_CancelCmd {w} {
    upvar #0 $w data
    global tkPriv

    set tkPriv(selectFilePath) ""
}

# Gets called when user browses the IconList widget (dragging mouse, arrow
# keys, etc)
#
proc tkFDialog_ListBrowse {w text} {
    upvar #0 $w data

    if {$text == ""} {
	return
    }

    set file [tkFDialog_JoinFile $data(selectPath) $text]
    if ![file isdirectory $file] {
	$data(ent) delete 0 end
	$data(ent) insert 0 $text

	if ![string compare $data(type) open] {
	    $data(okBtn) config -text "Open"
	} else {
	    $data(okBtn) config -text "Save"
	}
    } else {
	$data(okBtn) config -text "Open"
    }
}

# Gets called when user invokes the IconList widget (double-click, 
# Return key, etc)
#
proc tkFDialog_ListInvoke {w text} {
    upvar #0 $w data

    if {$text == ""} {
	return
    }

    set file [tkFDialog_JoinFile $data(selectPath) $text]

    if [file isdirectory $file] {
	set appPWD [pwd]
	if [catch {cd $file}] {
	    tk_messageBox -type ok -message \
	       "Cannot change to the directory \"$file\".\nPermission denied."\
		-icon warning
	} else {
	    cd $appPWD
	    set data(selectPath) $file
	}
    } else {
	set data(selectFile) $file
	tkFDialog_Done $w
    }
}

# tkFDialog_Done --
#
#	Gets called when user has input a valid filename.  Pops up a
#	dialog box to confirm selection when necessary. Sets the
#	tkPriv(selectFilePath) variable, which will break the "tkwait"
#	loop in tkFDialog and return the selected filename to the
#	script that calls tk_getOpenFile or tk_getSaveFile
#
proc tkFDialog_Done {w {selectFilePath ""}} {
    upvar #0 $w data
    global tkPriv

    if ![string compare $selectFilePath ""] {
	set selectFilePath [tkFDialog_JoinFile $data(selectPath) \
		$data(selectFile)]
	set tkPriv(selectFile)     $data(selectFile)
	set tkPriv(selectPath)     $data(selectPath)

	if {[file exists $selectFilePath] && 
	    ![string compare $data(type) save]} {

	    set reply [tk_messageBox -icon warning -type yesno \
	        -message "File \"$selectFilePath\" already exists.\nDo you want to overwrite it?"]
	    if ![string compare $reply "no"] {
		return
	    }
	}
    }
    set tkPriv(selectFilePath) $selectFilePath
}