mirror of
https://github.com/zint/zint
synced 2024-11-16 20:57:25 +13:00
69 lines
1.8 KiB
Tcl
69 lines
1.8 KiB
Tcl
package require Tk
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package require zint
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wm title . "ZINT Demo"
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wm minsize . 480 320
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if {[info command sdltk] eq "sdltk"} {
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wm attributes . -fullscreen 1
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set padx 30
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set pady 20
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} else {
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wm geometry . 480x320
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set padx 5
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set pady 5
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}
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image create photo ::zintimg
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pack [::ttk::combobox .c -values [lsort [zint symbologies]] -state readonly] \
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-side top -fill x -padx $padx -pady $pady
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.c set Datamatrix
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pack [::ttk::entry .e] -side top -fill x -padx $padx -pady $pady
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.e insert end 12345
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bind .e <Return> Generate
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pack [::ttk::button .b -text Generate -command Generate] -fill x -side top \
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-padx $padx -pady $pady
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proc Generate {} {
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::zintimg blank
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::zintimg configure -width 1 -height 1
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::zintimg blank
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::zintimg configure -width 0 -height 0
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if {[catch {zint encode [.e get] ::zintimg -barcode [.c get]} e]} {
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tk_messageBox -message $e -title "Zint error"
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} else {
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set w [image width ::zintimg]
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set h [image height ::zintimg]
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set lw [winfo width .l]
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set lh [winfo height .l]
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set sx [expr {int(1.0 * $lw / $w)}]
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set sy [expr {int(1.0 * $lh / $h)}]
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if {$sy < $sx} {
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set sx $sy
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}
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if {$sx <= 0} {
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set sx [expr {1.1 * $lw / $w}]
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set sy [expr {1.1 * $lh / $h}]
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if {$sy < $sx} {
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set sx $sy
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}
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}
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::zintimg blank
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::zintimg configure -width 1 -height 1
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::zintimg blank
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::zintimg configure -width 0 -height 0
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catch {
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zint encode [.e get] ::zintimg -barcode [.c get] -scale $sx
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}
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}
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}
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pack [label .l -image ::zintimg -bg white] -side top -fill both -expand 1 \
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-padx $padx -pady $pady
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bind .e <Configure> {
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after cancel Generate
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after idle Generate
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}
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bind .c <<ComboboxSelected>> {
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after cancel Generate
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after idle Generate
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}
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bind all <Break> exit
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bind all <Control-q> exit
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bind all <Alt-q> exit
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