mirror of
https://git.code.sf.net/p/zint/code
synced 2024-09-19 23:39:02 -04:00
68 lines
1.8 KiB
Tcl
68 lines
1.8 KiB
Tcl
package require Tk
|
|
package require zint
|
|
wm title . "ZINT Demo"
|
|
wm minsize . 480 320
|
|
if {[info command sdltk] eq "sdltk"} {
|
|
wm attributes . -fullscreen 1
|
|
set padx 30
|
|
set pady 20
|
|
} else {
|
|
wm geometry . 480x320
|
|
set padx 5
|
|
set pady 5
|
|
}
|
|
image create photo ::zintimg
|
|
pack [::ttk::combobox .c -values [lsort [zint symbologies]] -state readonly] \
|
|
-side top -fill x -padx $padx -pady $pady
|
|
.c set Datamatrix
|
|
pack [::ttk::entry .e] -side top -fill x -padx $padx -pady $pady
|
|
.e insert end 12345
|
|
bind .e <Return> Generate
|
|
pack [::ttk::button .b -text Generate -command Generate] -fill x -side top \
|
|
-padx $padx -pady $pady
|
|
proc Generate {} {
|
|
::zintimg blank
|
|
::zintimg configure -width 1 -height 1
|
|
::zintimg blank
|
|
::zintimg configure -width 0 -height 0
|
|
if {[catch {zint encode [.e get] ::zintimg -barcode [.c get]} e]} {
|
|
tk_messageBox -message $e -title "Zint error"
|
|
} else {
|
|
set w [image width ::zintimg]
|
|
set h [image height ::zintimg]
|
|
set lw [winfo width .l]
|
|
set lh [winfo height .l]
|
|
set sx [expr {int(1.0 * $lw / $w)}]
|
|
set sy [expr {int(1.0 * $lh / $h)}]
|
|
if {$sy < $sx} {
|
|
set sx $sy
|
|
}
|
|
if {$sx <= 0} {
|
|
set sx [expr {1.1 * $lw / $w}]
|
|
set sy [expr {1.1 * $lh / $h}]
|
|
if {$sy < $sx} {
|
|
set sx $sy
|
|
}
|
|
}
|
|
::zintimg blank
|
|
::zintimg configure -width 1 -height 1
|
|
::zintimg blank
|
|
::zintimg configure -width 0 -height 0
|
|
catch {
|
|
zint encode [.e get] ::zintimg -barcode [.c get] -scale $sx
|
|
}
|
|
}
|
|
}
|
|
pack [label .l -image ::zintimg -bg white] -side top -fill both -expand 1 \
|
|
-padx $padx -pady $pady
|
|
bind .e <Configure> {
|
|
after cancel Generate
|
|
after idle Generate
|
|
}
|
|
bind .c <<ComboboxSelected>> {
|
|
after cancel Generate
|
|
after idle Generate
|
|
}
|
|
bind all <Break> exit
|
|
bind all <Control-q> exit
|
|
bind all <Alt-q> exit
|