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# copyright (C) 1997-2005 Jean-Luc Fontaine (mailto:jfontain@free.fr)
# this program is free software: please read the COPYRIGHT file enclosed in this package or use the Help Copyright menu
# $Id: print.tcl,v 2.44 2005/01/02 00:45:07 jfontain Exp $
namespace eval print {
variable dotsPerMillimeter [expr {72 / 25.4}] ;# 72 dots/inch is the default for printers
variable previewerWindow .grabber.printPreviewer
proc printOrSaveCanvas {} {
variable printToFile $global::printToFile
variable printCommand $global::printCommand
variable fileToPrintTo $global::fileToPrintTo
variable orientations
variable orientation
variable palettes
variable palette
variable sizes
variable size
variable printPaperSize $global::printPaperSize
variable printer
if {![info exists orientations]} {
foreach orientation $global::printOrientations {lappend orientations [mc $orientation]}
foreach palette $global::printPalettes {lappend palettes [mc $palette]}
foreach size $global::printPaperSizes {lappend sizes [mc $size]}
}
set index [lsearch -exact $global::printOrientations $global::printOrientation]; if {$index < 0} {set index 0}
set orientation [lindex $orientations $index]
set index [lsearch -exact $global::printPalettes $global::printPalette]; if {$index < 0} {set index 0}
set palette [lindex $palettes $index]
set index [lsearch -exact $global::printPaperSizes $global::printPaperSize]; if {$index < 0} {set index 0}
set size [lindex $sizes $index]
set objects {} ;# to delete upon destruction of this folder
set dialog [new dialogBox .grabber\
-buttons hoc -default o -title [mc {moodss: Print}] -die 0 -x [winfo pointerx .] -y [winfo pointery .]\
-helpcommand {generalHelpWindow #menus.file.print} -deletecommand {grab release .grabber}\
]
grab .grabber ;# grab siblings such as help window so that it is usable
lappend objects [linkedHelpWidgetTip $composite::($dialog,help,path)]
set toplevel $widget::($dialog,path)
set frame [frame $toplevel.frame]
set row 0
message $frame.help -width [winfo screenwidth .] -font $font::(mediumNormal) -justify left\
-text [mc {Print the window to a printer device or to a file, in Postscript}]
grid $frame.help -pady 5 -row $row -column 0 -columnspan 3
incr row
radiobutton $frame.toCommand -variable print::printToFile -value 0
grid $frame.toCommand -row $row -column 0 -sticky w
if {[string first %P $printCommand] < 0} { ;# command does not include printer parameter
$frame.toCommand configure -text [mc {with Command:}]
entry $frame.command -textvariable print::printCommand
grid $frame.command -row $row -column 1 -sticky ew
} else { ;# let user choose printer from printers database
$frame.toCommand configure -text [mc {to Printer:}]
printerCapability::parseDatabase aliases default
catch {unset printer} ;# make sure printer is reset each time
catch {set printer [printerFormattedEntry $default $aliases($default)]} ;# default might not exist
set entries {}
foreach name [lsort -dictionary [array names aliases]] { ;# sort for easier access
lappend entries [printerFormattedEntry $name $aliases($name)]
}
set entry [new comboEntry $frame -font $widget::option(entry,font) -list $entries]
lappend objects $entry
composite::configure $entry entry -textvariable print::printer
if {[llength $entries] <= 3} {
composite::configure $entry button -listheight [llength $entries]
}
composite::configure $entry button scroll -selectmode single
grid $widget::($entry,path) -row $row -column 1 -sticky ew
}
set button\
[button $frame.preview -text [mc Preview]... -command "wm withdraw $toplevel; print::preview; wm deiconify $toplevel"]
if {[catch {exec gs --version} version]} {
$button configure -state disabled
lappend objects [new widgetTip -path $button -text [mc {could not get gs version}]]
} elseif {[package vcompare $version 5.20] < 0} { ;# -dWindowID switch did not work before
$button configure -state disabled
lappend objects [new widgetTip -path $button -text [mc {requires gs version above 5.20}]]
}
grid $button -row $row -column 2 -sticky ew
incr row
radiobutton $frame.toFile -variable print::printToFile -value 1 -text [mc {or to File:}]
grid $frame.toFile -row $row -column 0 -sticky w
entry $frame.file -textvariable print::fileToPrintTo
grid $frame.file -row $row -column 1 -sticky ew
button $frame.browse -text [mc Browse]... -command "print::inquireFileToPrintTo $frame"
grid $frame.browse -row $row -column 2 -sticky ew
if {$printToFile} {
$frame.toFile invoke
} else {
$frame.toCommand invoke
}
incr row
grid [label $frame.orientation -text [mc Orientation:]] -row $row -column 0 -sticky w
set entry [new comboEntry $frame -font $widget::option(entry,font) -list $orientations -editable 0]
lappend objects $entry
composite::configure $entry entry -textvariable print::orientation
composite::configure $entry button -listheight [llength $orientations]
composite::configure $entry button scroll -selectmode single
grid $widget::($entry,path) -row $row -column 1 -columnspan 2 -sticky ew
incr row
grid [label $frame.palette -text [mc Palette:]] -row $row -column 0 -sticky w
set entry [new comboEntry $frame -font $widget::option(entry,font) -list $palettes -editable 0]
lappend objects $entry
composite::configure $entry entry -textvariable print::palette
composite::configure $entry button -listheight [llength $palettes]
composite::configure $entry button scroll -selectmode single
grid $widget::($entry,path) -row $row -column 1 -columnspan 2 -sticky ew
incr row
grid [label $frame.size -text [mc {Paper size:}]] -row $row -column 0 -sticky w
set entry [new comboEntry $frame -font $widget::option(entry,font) -list $sizes -editable 0]
lappend objects $entry
composite::configure $entry entry -textvariable print::size
composite::configure $entry button -listheight [llength $sizes]
composite::configure $entry button scroll -selectmode single
grid $widget::($entry,path) -row $row -column 1 -columnspan 2 -sticky ew
grid columnconfigure $frame 1 -weight 1
dialogBox::display $dialog $frame
# make sure dialog box does not appear in printout
widget::configure $dialog -command "delete $dialog; print::updateGlobals; update; print::print"
bind $frame <Destroy> "print::cleanup $objects" ;# delete objects not managed by the dialog box
}
proc printerFormattedEntry {name aliases} {
set string $name
set first 1
foreach alias $aliases {
if {$first} {
append string { (}
set first 0
} else {
append string {, }
}
append string $alias
}
if {!$first} {
append string )
}
return $string
}
proc cleanup {args} { ;# arguments are objets to delete
variable previewerWindow
catch {destroy $previewerWindow}
eval delete $args
}
proc inquireFileToPrintTo {parentPath} {
set file [tk_getSaveFile\
-title [mc {moodss: Print to file}] -parent $parentPath -initialdir [file dirname $print::fileToPrintTo]\
-defaultextension .ps -filetypes [list {Postscript .ps} [list [mc {All files}] *]] -initialfile $print::fileToPrintTo\
]
if {[string length $file] > 0} { ;# not canceled
set print::fileToPrintTo $file
}
}
proc updateGlobals {} {
variable printToFile
variable printCommand
variable fileToPrintTo
variable orientations
variable orientation
variable palettes
variable palette
variable sizes
variable size
set global::printToFile $printToFile
set global::printCommand $printCommand
set global::fileToPrintTo $fileToPrintTo
set index [lsearch -exact $orientations $orientation]; if {$index < 0} {set index 0}
set global::printOrientation [lindex $global::printOrientations $index]
set index [lsearch -exact $palettes $palette]; if {$index < 0} {set index 0}
set global::printPalette [lindex $global::printPalettes $index]
set index [lsearch -exact $sizes $size]; if {$index < 0} {set index 0}
set global::printPaperSize [lindex $global::printPaperSizes $index]
}
proc canvasPrintArea {} { ;# calculate visible area coordinates
set canvas $global::canvas
# first calculate visible area coordinates
foreach {left top right bottom} [$canvas cget -scrollregion] {}
set width [expr {$right - $left}]
set height [expr {$bottom - $top}]
foreach {minimum maximum} [$canvas xview] {}
set left [expr {$left + ($minimum * $width)}]
foreach {minimum maximum} [$canvas yview] {}
set top [expr {$top + ($minimum * $height)}]
scan [winfo geometry $canvas] %ux%u width height ;# now get visible area size
set right [expr {$left + $width}]
set bottom [expr {$top + $height}]
set items {}
foreach item [$canvas find all] {
set print 1
foreach tag [$canvas gettags $item] {
# do not take icons into account (they are only printed if visible among the printable items):
if {[string match icon(*) $tag]} {
set print 0
break
}
}
if {$print} {
lappend items $item
}
}
if {[llength $items] > 0} { ;# there may be no items in the canvas if no modules are loaded
foreach {boundsLeft boundsTop boundsRight boundsBottom} [eval $canvas bbox $items] {}
if {$boundsLeft > $left} {set left $boundsLeft}
if {$boundsRight < $right} {set right $boundsRight}
if {$boundsTop > $top} {set top $boundsTop}
if {$boundsBottom < $bottom} {set bottom $boundsBottom}
}
return [list $left $top [expr {$right - $left}] [expr {$bottom - $top}]]
}
proc postscriptOptions {{gsOutput 0} {pageWidthName {}} {pageHeightName {}}} {
variable orientations
variable orientation
variable sizes
variable size
variable palettes
variable palette
variable dotsPerMillimeter
if {[string length $pageWidthName] > 0} {
upvar 1 $pageWidthName pageWidth
}
if {[string length $pageHeightName] > 0} {
upvar 1 $pageHeightName pageHeight
}
update ;# make sure everything is redrawn properly in case dialog box hid something
foreach {left top width height} [canvasPrintArea] {}
set inch 25.4 ;# millimeters
set margin [expr {$inch / 2}] ;# all dimensions in millimeters
set index [lsearch -exact $sizes $size]; if {$index < 0} {set index 0}
switch -glob [lindex $global::printPaperSizes $index] {
A3* {
set pageWidth 297
set pageHeight 420
}
A4* {
set pageWidth 210
set pageHeight 297
}
executive* {
set pageWidth [expr {7.5 * $inch}]
set pageHeight [expr {10 * $inch}]
}
legal* {
set pageWidth [expr {8.5 * $inch}]
set pageHeight [expr {14 * $inch}]
}
default {
set pageWidth [expr {8.5 * $inch}] ;# letter
set pageHeight [expr {11 * $inch}]
}
}
set pageX ${margin}m
set index [lsearch -exact $orientations $orientation]; if {$index < 0} {set index 0}
set rotate [string equal [lindex $global::printOrientations $index] landscape]
if {$rotate} {
set pageY ${margin}m
} else {
set pageY [expr {$pageHeight - $margin}]m
}
# now make sure everything fits in page
if {$rotate} { ;# swap page width and height
set value $pageWidth
set pageWidth $pageHeight
set pageHeight $value
unset value
if {$gsOutput} { ;# for gs, the printout is not rotated, only the page size is changed
set pageY [expr {$pageHeight - $margin}]m
}
}
set printWidth [expr {($pageWidth - (2 * $margin)) * $dotsPerMillimeter}] ;# in pixels
set printHeight [expr {($pageHeight - (2 * $margin)) * $dotsPerMillimeter}]
set ratio 1 ;# use identical horizontal and vertical ratios
if {$printWidth < $width} {
set ratio [expr {$printWidth / $width}]
}
if {($printHeight < $height) && (($printHeight / $height) < $ratio)} {
set ratio [expr {$printHeight / $height}]
}
if {$gsOutput} { ;# for gs, the printout is not rotated, only the page size is changed
set rotate 0
}
set index [lsearch -exact $palettes $palette]; if {$index < 0} {set index 0}
set options [list\
-colormode [lindex $global::printPalettes $index] -rotate $rotate -x $left -y $top -width $width -height $height\
-pageanchor nw -pagex $pageX -pagey $pageY\
]
if {$ratio < 1} { ;# size reduction needed
lappend options -pagewidth [expr {$ratio * $width}] -pageheight [expr {$ratio * $height}]
}
return $options
}
proc print {} {
variable printToFile
variable fileToPrintTo
variable printCommand
variable printer
busy 1
set options [postscriptOptions] ;# do first as internal updating is done for proper geometry assertion
if {$printToFile} {
lifoLabel::push $global::messenger [format [mc {printing to file %s...}] $fileToPrintTo]
} else {
lifoLabel::push $global::messenger [mc printing...]
}
update idletasks ;# make sure message is visible
if {$printToFile} {
lappend options -file $fileToPrintTo
eval $global::canvas postscript $options
} else { ;# gather data first in case window gets obscured by printing utility (which may be gs)
set data [eval $global::canvas postscript $options]
if {[string first %P $printCommand] < 0} { ;# command does not include printer parameter
set command $printCommand ;# use as is
} else { ;# use selected printer
regsub -all %P $printCommand [scan $printer %s] command ;# only use first word (format is "name (alias, ...)")
}
if {\
[catch {set channel [open |$command w]} message] ||\
[catch {puts -nonewline $channel $data} message] || [catch {close $channel} message]\
} {
tk_messageBox -title [mc {moodss: Error when printing}] -type ok -icon error -message "$command: $message"
}
}
lifoLabel::pop $global::messenger
busy 0
}
proc preview {} {
variable previewerWindow
variable viewer
variable zoomRatio
if {![winfo exists $previewerWindow]} { ;# make window visible if it already exists
toplevel $previewerWindow
wm resizable $previewerWindow 0 0
wm group $previewerWindow . ;# for proper window manager (windowmaker for example) behavior
wm title $previewerWindow [mc {moodss: Print preview...}]
set viewer [new printViewer $previewerWindow -deletefile 1]
set menu [menu $previewerWindow.menu -tearoff 0]
$previewerWindow configure -menu $menu
menu $menu.zoom -tearoff 0
foreach {string underline} [underlineAmpersand [mc &Zoom]] {}
$menu add cascade -label $string -menu $menu.zoom -underline $underline
set zoomRatio 100%
foreach {label value} {10 0.1 25 0.25 50 0.5 75 0.75 100 1 200 2 500 5} {
$menu.zoom add radiobutton -label $label% -variable ::print::zoomRatio\
-command "composite::configure $viewer -zoom $value; printViewer::refresh $viewer"
}
foreach {string underline} [underlineAmpersand [mc &Close]] {}
$menu.zoom add command -label $string -underline $underline -command "destroy $previewerWindow"
frame $previewerWindow.bound ;# create a frame for bindings that otherwise would propagate to all toplevel children
bind $previewerWindow.bound <Destroy> "delete $viewer"
pack $widget::($viewer,path)
}
lower $previewerWindow ;# do not obstruct canvas
busy 1
lifoLabel::push $global::messenger [mc {previewing with gs...}]
update idletasks ;# make sure message is visible
set options [postscriptOptions 1 width height] ;# do first as internal updating is done for proper geometry assertion
lappend options -file [set file [temporaryFileName]]
eval $global::canvas postscript $options
wm deiconify $previewerWindow
raise $previewerWindow
composite::configure $viewer -file $file -pagewidth $width -pageheight $height
printViewer::refresh $viewer
lifoLabel::pop $global::messenger
busy 0
}
proc createTemporaryCanvasShot {} {
update idletasks ;# try to make sure everything is drawn properly
foreach {left top width height} [canvasPrintArea] {}
set file [temporaryFileName png]
set channel [open\
"|gs -q -dBATCH -dNOPROMPT -sDEVICE=png256 -g${width}x${height} -r$printViewer::(pixelsPerInch) -sOutputFile=$file -"\
w\
]
$global::canvas postscript -colormode color -x 0 -y 0 -width $width -height $height -pageanchor sw -pagex 0 -pagey 0\
-channel $channel
close $channel
return $file
}
}
|
