diff -r 000000000000 -r ae805ac0140d python-2.5.2/win32/tcl/tk8.4/demos/image2.tcl --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/python-2.5.2/win32/tcl/tk8.4/demos/image2.tcl Fri Apr 03 17:19:34 2009 +0100 @@ -0,0 +1,104 @@ +# image2.tcl -- +# +# This demonstration script creates a simple collection of widgets +# that allow you to select and view images in a Tk label. +# +# RCS: @(#) $Id: image2.tcl,v 1.6 2002/08/12 13:38:48 dkf Exp $ + +if {![info exists widgetDemo]} { + error "This script should be run from the \"widget\" demo." +} + +# loadDir -- +# This procedure reloads the directory listbox from the directory +# named in the demo's entry. +# +# Arguments: +# w - Name of the toplevel window of the demo. + +proc loadDir w { + global dirName + + $w.f.list delete 0 end + foreach i [lsort [glob -directory $dirName *]] { + $w.f.list insert end [file tail $i] + } +} + +# selectAndLoadDir -- +# This procedure pops up a dialog to ask for a directory to load into +# the listobx and (if the user presses OK) reloads the directory +# listbox from the directory named in the demo's entry. +# +# Arguments: +# w - Name of the toplevel window of the demo. + +proc selectAndLoadDir w { + global dirName + set dir [tk_chooseDirectory -initialdir $dirName -parent $w -mustexist 1] + if {[string length $dir] != 0} { + set dirName $dir + loadDir $w + } +} + +# loadImage -- +# Given the name of the toplevel window of the demo and the mouse +# position, extracts the directory entry under the mouse and loads +# that file into a photo image for display. +# +# Arguments: +# w - Name of the toplevel window of the demo. +# x, y- Mouse position within the listbox. + +proc loadImage {w x y} { + global dirName + + set file [file join $dirName [$w.f.list get @$x,$y]] + image2a configure -file $file +} + +set w .image2 +catch {destroy $w} +toplevel $w +wm title $w "Image Demonstration #2" +wm iconname $w "Image2" +positionWindow $w + +label $w.msg -font $font -wraplength 4i -justify left -text "This demonstration allows you to view images using a Tk \"photo\" image. First type a directory name in the listbox, then type Return to load the directory into the listbox. Then double-click on a file name in the listbox to see that image." +pack $w.msg -side top + +frame $w.buttons +pack $w.buttons -side bottom -fill x -pady 2m +button $w.buttons.dismiss -text Dismiss -command "destroy $w" +button $w.buttons.code -text "See Code" -command "showCode $w" +pack $w.buttons.dismiss $w.buttons.code -side left -expand 1 + +frame $w.mid +pack $w.mid -fill both -expand 1 + +labelframe $w.dir -text "Directory:" +set dirName [file join $tk_library demos images] +entry $w.dir.e -width 30 -textvariable dirName +button $w.dir.b -pady 0 -padx 2m -text "Select Dir." \ + -command "selectAndLoadDir $w" +bind $w.dir.e "loadDir $w" +pack $w.dir.e -side left -fill both -padx 2m -pady 2m -expand true +pack $w.dir.b -side left -fill y -padx {0 2m} -pady 2m +labelframe $w.f -text "File:" -padx 2m -pady 2m + +listbox $w.f.list -width 20 -height 10 -yscrollcommand "$w.f.scroll set" +scrollbar $w.f.scroll -command "$w.f.list yview" +pack $w.f.list $w.f.scroll -side left -fill y -expand 1 +$w.f.list insert 0 earth.gif earthris.gif teapot.ppm +bind $w.f.list "loadImage $w %x %y" + +catch {image delete image2a} +image create photo image2a +labelframe $w.image -text "Image:" +label $w.image.image -image image2a +pack $w.image.image -padx 2m -pady 2m + +grid $w.dir - -sticky ew -padx 1m -pady 1m -in $w.mid +grid $w.f $w.image -sticky nw -padx 1m -pady 1m -in $w.mid +grid columnconfigure $w.mid 1 -weight 1