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- # Tix Demostration Program
- #
- # This sample program is structured in such a way so that it can be
- # executed from the Tix demo program "widget": it must have a
- # procedure called "RunSample". It should also have the "if" statment
- # at the end of this file so that it can be run as a standalone
- # program using tixwish.
-
- # Demonstrates how to use compound images to display icons in a canvas widget.
- #
-
- proc RunSample {w} {
- set top [frame $w.f -bd 1 -relief raised]
- set box [tixButtonBox $w.b -bd 1 -relief raised]
-
- pack $box -side bottom -fill both
- pack $top -side top -fill both -expand yes
-
- label $top.lab -text "Drag the icons"
- pack $top.lab -anchor c -side top -pady 4
-
- # Create the canvas to display the icons
- #
- set c [canvas $top.c -relief sunken -bd 1]
- pack $c -side top -expand yes -fill both -padx 4 -pady 4
-
- # create several compound images in the canvas
- #
- set network [tix getimage network]
- set harddisk [tix getimage harddisk]
-
- set cmp_1 [image create compound -window $c -bd 1]
- $cmp_1 add image -image $network
- $cmp_1 add line
- $cmp_1 add text -text " Network "
-
- set cmp_2 [image create compound -window $c -bd 1]
- $cmp_2 add image -image $harddisk
- $cmp_2 add line
- $cmp_2 add text -text " Hard disk "
-
- set cmp_3 [image create compound -window $c -bd 1 \
- -background #c0c0ff -relief raised \
- -showbackground 1]
- $cmp_3 add image -image $network
- $cmp_3 add line
- $cmp_3 add text -text " Network 2 "
-
- $c create image 50 50 -image $cmp_1
- $c create image 150 50 -image $cmp_2
- $c create image 250 50 -image $cmp_3
-
- bind $c <1> "itemStartDrag $c %x %y"
- bind $c <B1-Motion> "itemDrag $c %x %y"
-
- # Create the buttons
- #
- $box add ok -text Ok -command "destroy $w" -width 6
- $box add cancel -text Cancel -command "destroy $w" -width 6
- }
-
-
- proc itemStartDrag {c x y} {
- global lastX lastY
- $c raise current
-
- set lastX [$c canvasx $x]
- set lastY [$c canvasy $y]
- }
-
- proc itemDrag {c x y} {
- global lastX lastY
- set x [$c canvasx $x]
- set y [$c canvasy $y]
- $c move current [expr $x-$lastX] [expr $y-$lastY]
- set lastX $x
- set lastY $y
- }
-
- if {![info exists tix_demo_running]} {
- wm withdraw .
- set w .demo
- toplevel $w
- RunSample $w
- bind $w <Destroy> exit
- }
-