344 lines
12 KiB
Tcl
344 lines
12 KiB
Tcl
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# WatchDog, a Client for TkGoodstuff
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#
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# By Eric Kahler (ekahler@mars.superlink.net)
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# and Mark Crimmins (markcrim@umich.edu)
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# Copyright (C) 1996; all rights reserved
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation License version 2.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details. For a copy of the
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# GNU General Public License write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# At the time of this copy-left the GNU General Public License can
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# also be obtained via FTP from wuarchive.wustl.edu/systems/gnu/COPYING
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proc WatchDogDeclare {} {
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set Prefs_taborder(:Clients,WatchDog) "Misc Button CustomDisplay"
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set Prefs_taborder(:Clients,WatchDog,Button) "Misc Icons Colors"
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TKGDeclare WatchDog(File) {/var/log/messages} -typelist [list Clients WatchDog Misc]\
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-label "File to watch"
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TKGDeclare WatchDog(update_interval) 30 -typelist [list Clients WatchDog Misc]\
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-label "Check every __ seconds"
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TKGDeclare WatchDog(nobeep) 0 -typelist [list Clients WatchDog Misc]\
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-vartype boolean\
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-label "Do not beep"
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TKGDeclare WatchDog(CustomDisplay) 0 -typelist [list Clients WatchDog Misc]\
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-vartype boolean\
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-label "Display file with custom-style display"
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TKGDeclare WatchDog(autoreset) 0 -typelist [list Clients WatchDog Misc]\
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-vartype boolean\
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-label "Auto-reset (after alert, go back to no-alert mode after the\
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checking interval)"
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TKGDeclare WatchDog(autoview) 0 -typelist [list Clients WatchDog Misc]\
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-vartype boolean\
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-label "Pop-up a viewing window at alert"
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TKGDeclare WatchDog(nobutton) 0 -typelist [list Clients WatchDog Button Misc]\
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-vartype boolean\
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-label "Do not produce a button"
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ConfigDeclare WatchDog ClientButton1 WatchDog [list Clients WatchDog Button]
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ConfigDeclare WatchDog ClientButton5 WatchDog [list Clients WatchDog Button]
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TKGDeclare WatchDog(change_text) {[file tail $WatchDog(File)]}\
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-typelist [list Clients WatchDog Button Misc]\
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-label "Changed text"
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TKGColorDeclare WatchDog(change_foreground) \#7fff00 \
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[list Clients WatchDog Button Colors] \
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"Changed foreground"
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TKGColorDeclare WatchDog(change_background) {} \
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[list Clients WatchDog Button Colors] \
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"Changed background" $TKG(buttonbackground)
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TKGColorDeclare WatchDog(change_activeforeground) \#7fff00 \
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[list Clients WatchDog Button Colors] \
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"Changed activeforeground"
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TKGDeclare WatchDog(nochange_text) {[file tail $WatchDog(File)]}\
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-typelist [list Clients WatchDog Button Misc] \
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-label "Text for no change"
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TKGColorDeclare WatchDog(nochange_foreground) {} \
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[list Clients WatchDog Button Colors] \
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"Foreground for no change" $TKG(buttonforeground)
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TKGColorDeclare WatchDog(nochange_background) {} \
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[list Clients WatchDog Button Colors] \
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"Background for no change" $TKG(buttonbackground)
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TKGColorDeclare WatchDog(nochange_activeforeground) {} \
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[list Clients WatchDog Button Colors] \
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"Activeforeground for no change" $TKG(buttonforeground)
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TKGDeclare WatchDog(gone_text) {[file tail $WatchDog(File)]}\
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-typelist [list Clients WatchDog Button Misc] \
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-label "Text for no file"
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TKGColorDeclare WatchDog(gone_foreground) {} \
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[list Clients WatchDog Button Colors] \
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"Foreground for no file" $TKG(disabledforeground)
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TKGColorDeclare WatchDog(gone_background) {} \
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[list Clients WatchDog Button Colors] \
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"Background for no file" $TKG(buttonbackground)
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TKGColorDeclare WatchDog(gone_activeforeground) {} \
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[list Clients WatchDog Button Colors] \
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"Activeforeground for no file" $TKG(disabledforeground)
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TKGDeclare WatchDog(change_image) {filefull.xpm}\
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-typelist [list Clients WatchDog Button Icons] \
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-label "Image for a change"
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TKGDeclare WatchDog(nochange_image) {fileempty.xpm}\
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-typelist [list Clients WatchDog Button Icons] \
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-label "Image for no change"
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TKGDeclare WatchDog(gone_image) {filegone.xpm}\
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-typelist [list Clients WatchDog Button Icons] \
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-label "Image for no file"
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TKGDeclare WatchDog(Position) +0-10 \
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-typelist [list Clients WatchDog CustomDisplay] \
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-label "Screen position"
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TKGDeclare WatchDog(Height) 2 \
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-typelist [list Clients WatchDog CustomDisplay] \
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-label "Height in rows"
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TKGDeclare WatchDog(Width) {120}\
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-typelist [list Clients WatchDog CustomDisplay] \
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-label "Width in columns"
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TKGDeclare WatchDog(ButtonSide) left \
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-typelist [list Clients WatchDog CustomDisplay] \
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-label "Side for button"
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TKGDeclare WatchDog(ScrollbarSide) left \
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-typelist [list Clients WatchDog CustomDisplay] \
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-label "Side for Scrollbar"
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TKGDeclare WatchDog(ScrollbarWidth) 4m -typelist \
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[list Clients WatchDog CustomDisplay] \
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-label "Scrollbar width (pixels)"
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TKGDeclare WatchDog(Font) "" -fallback tkgmedium \
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-typelist [list Clients WatchDog CustomDisplay] \
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-label "Font"
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}
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proc WatchDogCreateWindow {} {
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if [TKGReGrid WatchDog] return
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global WatchDog-params TKG WatchDog
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uplevel {
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catch {set WatchDog(File) [glob $WatchDog(File)]}
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set WatchDog(initialize_offset) $WatchDog(update_interval)
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set WatchDog(FileSize) 0
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if [file exists $WatchDog(File)] {
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if [file isdirectory $WatchDog(File)] {
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if ![file readable $WatchDog(File)] {
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TKGError "Can't Watch $WatchDog(File) because you don't have read permission."
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return
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}
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set WatchDog(FileSize) [exec /bin/ls -l $WatchDog(File) | sum ]
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} else {
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catch {set WatchDog(FileSize) [file size $WatchDog(File)]}
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}
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}
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if !$WatchDog(nobutton) {
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if { $WatchDog(nolabel) } {
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set WatchDog(change_text) ""
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set WatchDog(nochange_text) ""
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set WatchDog(gone_text) ""
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}
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if [file exists $WatchDog(File)] {
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set mode nochange
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} else {
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set mode gone
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}
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TKGMakeButton WatchDog -text(change) $WatchDog(change_text) \
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-foreground(change) $WatchDog(change_foreground) \
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-activeforeground(change) $WatchDog(change_activeforeground) \
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-background(change) $WatchDog(change_background) \
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-command(change) WatchDog-Display \
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-text(nochange) $WatchDog(nochange_text) \
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-balloon(nochange) "No change in\n$WatchDog(File)" \
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-balloon(change) "$WatchDog(File)\nhas changed" \
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-balloon(gone) "File \n$WatchDog(File) does not exist" \
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-foreground(nochange) $WatchDog(nochange_foreground) \
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-activeforeground(nochange) $WatchDog(nochange_activeforeground) \
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-background(nochange) $WatchDog(nochange_background) \
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-command(nochange) WatchDog-Display \
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-text(gone) $WatchDog(gone_text) \
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-foreground(gone) $WatchDog(gone_foreground) \
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-activeforeground(gone) $WatchDog(gone_activeforeground) \
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-background(gone) $WatchDog(gone_background) \
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-command(gone) WatchDog-Display\
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-mode $mode
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if !$WatchDog(noicon) {
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SetImage WatchDog_change_image $WatchDog(change_image)
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SetImage WatchDog_nochange_image $WatchDog(nochange_image)
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SetImage WatchDog_gone_image $WatchDog(gone_image)
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TKGButton WatchDog -image(change) WatchDog_change_image \
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-image(nochange) WatchDog_nochange_image \
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-image(gone) WatchDog_gone_image \
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-iconside $WatchDog(iconside)\
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-relief $WatchDog(relief)
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}
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bind [set WatchDog-params(pathname)] <2> \
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{ WatchDog-Set-Normal }
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}
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uplevel #0 {
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TKGPeriodic WatchDog-Update $WatchDog(update_interval) \
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$WatchDog(initialize_offset) WatchDog-Update
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}
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}
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}
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proc WatchDog-Update {} {
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global WatchDog-params WatchDog TKG
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if { ![file exists $WatchDog(File)] || [winfo exists .watchdog_display]} return
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if !$WatchDog(nobutton) {
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if { [WatchDog-Test-File] && !$TKG(nonotices) } {
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if {[set WatchDog-params(mode)] != "change"} {
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TKGButton WatchDog -mode change
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if {! ( $WatchDog(nobeep) || $TKG(nobeep) ) } {
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catch { bell; bell }
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}
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if $WatchDog(autoreset) {
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TKGPeriodic WatchDog-reset $WatchDog(update_interval) \
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$WatchDog(update_interval) WatchDog-Reset
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}
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}
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if $WatchDog(autoview) WatchDog-Display
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} elseif { [set WatchDog-params(mode)] != "nochange" } {
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TKGButton WatchDog -mode nochange
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}
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} elseif { [WatchDog-Test-File] } {
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if { !$TKG(nonotices) } {
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if {! ( $WatchDog(nobeep) || $TKG(nobeep) ) } {
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catch { bell; bell }
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}
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if $WatchDog(autoview) WatchDog-Display
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}
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}
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}
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proc WatchDog-Reset {} {
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global WatchDog-params
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TKGPeriodicCancel WatchDog-reset
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TKGButton WatchDog -mode nochange
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}
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proc WatchDog-Test-File {} {
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global WatchDog WatchDog-params
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if [file isdirectory $WatchDog(File)] {
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set filesize [exec /bin/ls -l $WatchDog(File) | sum ]
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} else {
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set filesize [file size $WatchDog(File)]
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}
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if {$filesize == 0} {return 0}
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if {$filesize != $WatchDog(FileSize)} {
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set WatchDog(FileSize) $filesize
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return 1
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} elseif $WatchDog(nobutton) {
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return 0
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} else { return [string match [set WatchDog-params(mode)] change] }
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}
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proc WatchDog-Display {} {
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global WatchDog
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if { ![file exists $WatchDog(File)] } {
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TKGError "Cannot display $WatchDog(File) because it does not exist."
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return
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}
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if { ![file readable $WatchDog(File)] } {
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TKGError "Cannot display $WatchDog(File) because you do not have read permission."
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return
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}
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if !$WatchDog(nobutton) {TKGButton WatchDog -mode nochange}
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if { $WatchDog(CustomDisplay) } {
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set WatchDog(textwidget) .watchdog_display.text
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catch {destroy .watchdog_display}
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toplevel .watchdog_display
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wm withdraw .watchdog_display
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wm title .watchdog_display "WatchDog"
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wm iconname .watchdog_display "WatchDog"
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frame .watchdog_display.buttons
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pack .watchdog_display.buttons -side $WatchDog(ButtonSide) -pady 1m -padx 1m
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button .watchdog_display.buttons.goaway -text "Dismiss" -command Watch-Display-End
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pack .watchdog_display.buttons.goaway \
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-side $WatchDog(ButtonSide)
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text .watchdog_display.text -relief sunken -bd 2 \
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-yscrollcommand ".watchdog_display.scroll set" \
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-setgrid 1 -height $WatchDog(Height) -width $WatchDog(Width) \
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-font $WatchDog(Font)
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scrollbar .watchdog_display.scroll -command ".watchdog_display.text yview" \
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-width $WatchDog(ScrollbarWidth)
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pack .watchdog_display.scroll -side $WatchDog(ScrollbarSide) -fill y
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pack .watchdog_display.text -expand yes -fill both
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} else {
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TKGDialog watchdog_display -title "WatchDog" -text "" \
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-buttons { {goaway Dismiss Watch-Display-End} } -nodismiss -nodeiconify
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set WatchDog(textwidget) .watchdog_display.view.text
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}
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focus .watchdog_display.buttons.goaway
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WatchDog-Display-Get
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if { $WatchDog(CustomDisplay) } {
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wm deiconify .watchdog_display
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update
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wm geometry .watchdog_display $WatchDog(Position)
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} else { TKGCenter .watchdog_display }
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uplevel #0 {
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TKGPeriodic Display-Update $WatchDog(update_interval) 0 \
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WatchDog-Display-Update
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}
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}
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proc WatchDog-Display-Update {} {
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global WatchDog
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if [WatchDog-Test-File] {
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if { $WatchDog(nobutton) || $WatchDog(autoview) } {
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TKGPeriodicCancel Display-Update
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WatchDog-Display
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}
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WatchDog-Display-Get
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}
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}
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proc WatchDog-Display-Get {} {
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global WatchDog
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$WatchDog(textwidget) configure -state normal
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$WatchDog(textwidget) delete 1.0 end
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if [file isdirectory $WatchDog(File)] {
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$WatchDog(textwidget) insert end [exec /bin/ls -l $WatchDog(File)]
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} else {
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set id [open $WatchDog(File) RDONLY]
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$WatchDog(textwidget) insert end [read $id]
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close $id
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}
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$WatchDog(textwidget) see end
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$WatchDog(textwidget) configure -state disabled
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}
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proc Watch-Display-End {} {
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destroy .watchdog_display
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TKGPeriodicCancel Display-Update
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}
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proc WatchDog-Set-Normal {} {
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global WatchDog
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catch {set WatchDog(FileSize) [file size $WatchDog(File)]}
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TKGButton WatchDog -mode nochange
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}
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DEBUG "Loaded WatchDog.tcl"
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