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|
set RandomN 500
#
# Demo: random N items
#
proc DemoRandom {} {
set T .f2.f1.t
InitPics folder-* small-*
set height [font metrics [$T cget -font] -linespace]
if {$height < 18} {
set height 18
}
$T configure -itemheight $height -selectmode extended \
-showroot yes -showrootbutton yes -showbuttons yes -showlines yes \
-scrollmargin 16 -xscrolldelay "500 50" -yscrolldelay "500 50"
$T column configure 0 -expand yes -text Item -itembackground {#e0e8f0 {}}
$T column configure 1 -text Parent -justify center -itembackground {gray90 {}}
$T column configure 2 -text Depth -justify center -itembackground {linen {}}
$T element create e1 image -image {folder-open {open} folder-closed {}}
$T element create e2 image -image small-file
$T element create e3 text \
-fill [list $::SystemHighlightText {selected focus}]
$T element create e4 text -fill blue
$T element create e6 text
$T element create e5 rect -showfocus yes \
-fill [list $::SystemHighlight {selected focus} gray {selected !focus}]
$T style create s1
$T style elements s1 {e5 e1 e3 e4}
$T style layout s1 e1 -pade 4 -expand ns
$T style layout s1 e3 -pade 4 -expand ns
$T style layout s1 e4 -pade 6 -expand ns
$T style layout s1 e5 -union [list e3] -iexpand ns -ipadw 2 -ipade 2
$T style create s2
$T style elements s2 {e5 e2 e3}
$T style layout s2 e2 -pade 4 -expand ns
$T style layout s2 e3 -pade 6 -expand ns
$T style layout s2 e5 -union [list e3] -iexpand ns -ipadw 2 -ipade 2
$T style create s3
$T style elements s3 {e6}
$T style layout s3 e6 -padw 6 -pade 6 -expand ns
set ::TreeCtrl::Priv(sensitive,$T) {e5 e1 e2 e3}
set ::TreeCtrl::Priv(dragimage,$T) {
{0 s1 e1 e3}
{0 s2 e2 e3}
}
set clicks [clock clicks]
for {set i 1} {$i < $::RandomN} {incr i} {
$T item create
while 1 {
set j [expr {int(rand() * $i)}]
if {[$T depth $j] < 5} break
}
if {rand() * 2 > 1} {
$T collapse $i
}
if {rand() * 2 > 1} {
$T item lastchild $j $i
} else {
$T item firstchild $j $i
}
}
puts "created $::RandomN-1 items in [expr [clock clicks] - $clicks] clicks"
set clicks [clock clicks]
for {set i 0} {$i < $::RandomN} {incr i} {
set numChildren [$T item numchildren $i]
if {$numChildren} {
$T item hasbutton $i yes
$T item style set $i 0 s1 1 s3 2 s3
$T item complex $i \
[list [list e3 -text "Item $i"] [list e4 -text "($numChildren)"]] \
[list [list e6 -text "[$T item parent $i]"]] \
[list [list e6 -text "[$T depth $i]"]]
} else {
$T item style set $i 1 s3 2 s3 0 s2
$T item complex $i \
[list [list e3 -text "Item $i"]] \
[list [list e6 -text "[$T item parent $i]"]] \
[list [list e6 -text "[$T depth $i]"]]
}
}
puts "configured $::RandomN items in [expr [clock clicks] - $clicks] clicks"
bind TreeCtrlRandom <Double-ButtonPress-1> {
TreeCtrl::DoubleButton1 %W %x %y
break
}
bind TreeCtrlRandom <Control-ButtonPress-1> {
set TreeCtrl::Priv(selectMode) toggle
TreeCtrl::RandomButton1 %W %x %y
break
}
bind TreeCtrlRandom <Shift-ButtonPress-1> {
set TreeCtrl::Priv(selectMode) add
TreeCtrl::RandomButton1 %W %x %y
break
}
bind TreeCtrlRandom <ButtonPress-1> {
set TreeCtrl::Priv(selectMode) set
TreeCtrl::RandomButton1 %W %x %y
break
}
bind TreeCtrlRandom <Button1-Motion> {
TreeCtrl::RandomMotion1 %W %x %y
break
}
bind TreeCtrlRandom <Button1-Leave> {
TreeCtrl::RandomLeave1 %W %x %y
break
}
bind TreeCtrlRandom <ButtonRelease-1> {
TreeCtrl::RandomRelease1 %W %x %y
break
}
bindtags $T [list $T TreeCtrlRandom TreeCtrl [winfo toplevel $T] all]
return
}
proc TreeCtrl::RandomButton1 {T x y} {
variable Priv
focus $T
set id [$T identify $x $y]
puts $id
set Priv(buttonMode) ""
# Click outside any item
if {$id eq ""} {
$T selection clear
# Click in header
} elseif {[lindex $id 0] eq "header"} {
ButtonPress1 $T $x $y
# Click in item
} else {
foreach {where item arg1 arg2 arg3 arg4} $id {}
switch $arg1 {
button {
$T toggle $item
}
line {
$T toggle $arg2
}
column {
set ok 0
# Clicked an element
if {[llength $id] == 6} {
set E [lindex $id 5]
if {[lsearch -exact $Priv(sensitive,$T) $E] != -1} {
set ok 1
}
}
if {!$ok} {
$T selection clear
return
}
set Priv(drag,motion) 0
set Priv(drag,x) [$T canvasx $x]
set Priv(drag,y) [$T canvasy $y]
set Priv(drop) ""
if {$Priv(selectMode) eq "add"} {
BeginExtend $T $item
} elseif {$Priv(selectMode) eq "toggle"} {
BeginToggle $T $item
} elseif {![$T selection includes $item]} {
BeginSelect $T $item
}
$T activate $item
if {[$T selection includes $item]} {
set Priv(buttonMode) drag
}
}
}
}
return
}
proc TreeCtrl::RandomMotion1 {T x y} {
variable Priv
switch $Priv(buttonMode) {
"resize" -
"header" {
Motion1 $T $x $y
}
"drag" {
RandomAutoScanCheck $T $x $y
RandomMotion $T $x $y
}
}
return
}
proc TreeCtrl::RandomMotion {T x y} {
variable Priv
switch $Priv(buttonMode) {
"resize" -
"header" {
Motion1 $T $x $y
}
"drag" {
# Detect initial mouse movement
if {!$Priv(drag,motion)} {
set Priv(selection) [$T selection get]
set Priv(drop) ""
$T dragimage clear
# For each selected item, add 2nd and 3rd elements of
# column zero to the dragimage
foreach I $Priv(selection) {
foreach list $Priv(dragimage,$T) {
set C [lindex $list 0]
set S [lindex $list 1]
if {[$T item style set $I $C] eq $S} {
eval $T dragimage add $I $C [lrange $list 2 end]
}
}
}
set Priv(drag,motion) 1
}
# Find the item under the cursor
set cursor X_cursor
set drop ""
set id [$T identify $x $y]
set ok 0
if {($id ne "") && ([lindex $id 0] eq "item") && ([llength $id] == 6)} {
set E [lindex $id 5]
if {[lsearch -exact $Priv(sensitive,$T) $E] != -1} {
set ok 1
}
}
if {$ok} {
set item [lindex $id 1]
set column [lindex $id 3]
if {$column == 0} {
# If the item is not in the pre-drag selection
# (i.e. not being dragged) see if we can drop on it
if {[lsearch -exact $Priv(selection) $item] == -1} {
set drop $item
# We can drop if dragged item isn't an ancestor
foreach item2 $Priv(selection) {
if {[$T item isancestor $item2 $item]} {
set drop ""
break
}
}
if {$drop ne ""} {
scan [$T item bbox $drop] "%d %d %d %d" x1 y1 x2 y2
if {$y < $y1 + 3} {
set cursor top_side
set Priv(drop,pos) prevsibling
} elseif {$y >= $y2 - 3} {
set cursor bottom_side
set Priv(drop,pos) nextsibling
} else {
set cursor ""
set Priv(drop,pos) lastchild
}
}
}
}
}
if {[$T cget -cursor] ne $cursor} {
$T configure -cursor $cursor
}
# Select the item under the cursor (if any) and deselect
# the previous drop-item (if any)
$T selection modify $drop $Priv(drop)
set Priv(drop) $drop
# Show the dragimage in its new position
set x [expr {[$T canvasx $x] - $Priv(drag,x)}]
set y [expr {[$T canvasy $y] - $Priv(drag,y)}]
$T dragimage offset $x $y
$T dragimage visible yes
}
}
return
}
proc TreeCtrl::RandomLeave1 {T x y} {
variable Priv
# This is called when I do ButtonPress-1 on Unix for some reason,
# and buttonMode is undefined.
if {![info exists Priv(buttonMode)]} return
switch $Priv(buttonMode) {
"header" {
Leave1 $T $x $y
}
}
return
}
proc TreeCtrl::RandomRelease1 {T x y} {
variable Priv
switch $Priv(buttonMode) {
"resize" -
"header" {
Release1 $T $x $y
}
"drag" {
AutoScanCancel $T
$T dragimage visible no
$T selection modify {} $Priv(drop)
$T configure -cursor ""
if {$Priv(drop) ne ""} {
RandomDrop $T $Priv(drop) $Priv(selection) $Priv(drop,pos)
}
}
}
set Priv(buttonMode) ""
return
}
proc RandomDrop {T target source pos} {
set parentList {}
switch -- $pos {
lastchild { set parent $target }
prevsibling { set parent [$T item parent $target] }
nextsibling { set parent [$T item parent $target] }
}
foreach item $source {
# Ignore any item whose ancestor is also selected
set ignore 0
foreach ancestor [$T item ancestors $item] {
if {[lsearch -exact $source $ancestor] != -1} {
set ignore 1
break
}
}
if {$ignore} continue
# Update the old parent of this moved item later
if {[lsearch -exact $parentList $item] == -1} {
lappend parentList [$T item parent $item]
}
# Add to target
$T item $pos $target $item
# Update text: parent
$T item element configure $item 1 e6 -text $parent
# Update text: depth
$T item element configure $item 2 e6 -text [$T depth $item]
# Recursively update text: depth
set itemList [$T item firstchild $item]
while {[llength $itemList]} {
# Pop
set item [lindex $itemList end]
set itemList [lrange $itemList 0 end-1]
$T item element configure $item 2 e6 -text [$T depth $item]
set item2 [$T item nextsibling $item]
if {$item2 ne ""} {
# Push
lappend itemList $item2
}
set item2 [$T item firstchild $item]
if {$item2 ne ""} {
# Push
lappend itemList $item2
}
}
}
# Update items that lost some children
foreach item $parentList {
set numChildren [$T item numchildren $item]
if {$numChildren == 0} {
$T item hasbutton $item no
$T item style map $item 0 s2 {e3 e3}
} else {
$T item element configure $item 0 e4 -text "($numChildren)"
}
}
# Update the target that gained some children
if {[$T item style set $parent 0] ne "s1"} {
$T item hasbutton $parent yes
$T item style map $parent 0 s1 {e3 e3}
}
set numChildren [$T item numchildren $parent]
$T item element configure $parent 0 e4 -text "($numChildren)"
return
}
# Same as TreeCtrl::AutoScanCheck, but calls RandomMotion and
# RandomAutoScanCheckAux
proc TreeCtrl::RandomAutoScanCheck {T x y} {
variable Priv
scan [$T contentbox] "%d %d %d %d" x1 y1 x2 y2
set margin [winfo pixels $T [$T cget -scrollmargin]]
if {($x < $x1 + $margin) || ($x >= $x2 - $margin) ||
($y < $y1 + $margin) || ($y >= $y2 - $margin)} {
if {![info exists Priv(autoscan,afterId,$T)]} {
if {$y >= $y2 - $margin} {
$T yview scroll 1 units
set delay [$T cget -yscrolldelay]
} elseif {$y < $y1 + $margin} {
$T yview scroll -1 units
set delay [$T cget -yscrolldelay]
} elseif {$x >= $x2 - $margin} {
$T xview scroll 1 units
set delay [$T cget -xscrolldelay]
} elseif {$x < $x1 + $margin} {
$T xview scroll -1 units
set delay [$T cget -xscrolldelay]
}
set count [scan $delay "%d %d" d1 d2]
if {[info exists Priv(autoscan,scanning,$T)]} {
if {$count == 2} {
set delay $d2
}
} else {
if {$count == 2} {
set delay $d1
}
set Priv(autoscan,scanning,$T) 1
}
switch $Priv(buttonMode) {
"drag" -
"marquee" {
RandomMotion $T $x $y
}
}
set Priv(autoscan,afterId,$T) [after $delay [list TreeCtrl::RandomAutoScanCheckAux $T]]
}
return
}
AutoScanCancel $T
return
}
proc TreeCtrl::RandomAutoScanCheckAux {T} {
variable Priv
unset Priv(autoscan,afterId,$T)
set x [winfo pointerx $T]
set y [winfo pointery $T]
set x [expr {$x - [winfo rootx $T]}]
set y [expr {$y - [winfo rooty $T]}]
RandomAutoScanCheck $T $x $y
return
}
#
# Demo: random N items, button images
#
proc DemoRandom2 {} {
set T .f2.f1.t
DemoRandom
InitPics mac-*
$T configure -openbuttonimage mac-collapse -closedbuttonimage mac-expand \
-showlines no
return
}
|