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# scale.tcl - Copyright (C) 2004 Pat Thoyts <patthoyts@users.sourceforge.net>
#
# Bindings for the TScale widget
namespace eval ttk::scale {
variable State
array set State {
dragging 0
}
}
bind TScale <ButtonPress-1> { ttk::scale::Press %W %x %y }
bind TScale <B1-Motion> { ttk::scale::Drag %W %x %y }
bind TScale <ButtonRelease-1> { ttk::scale::Release %W %x %y }
bind TScale <ButtonPress-2> { ttk::scale::Jump %W %x %y }
bind TScale <B2-Motion> { ttk::scale::Drag %W %x %y }
bind TScale <ButtonRelease-2> { ttk::scale::Release %W %x %y }
bind TScale <ButtonPress-3> { ttk::scale::Jump %W %x %y }
bind TScale <B3-Motion> { ttk::scale::Drag %W %x %y }
bind TScale <ButtonRelease-3> { ttk::scale::Release %W %x %y }
bind TScale <Left> { ttk::scale::Increment %W -1 }
bind TScale <Up> { ttk::scale::Increment %W -1 }
bind TScale <Right> { ttk::scale::Increment %W 1 }
bind TScale <Down> { ttk::scale::Increment %W 1 }
bind TScale <Control-Left> { ttk::scale::Increment %W -10 }
bind TScale <Control-Up> { ttk::scale::Increment %W -10 }
bind TScale <Control-Right> { ttk::scale::Increment %W 10 }
bind TScale <Control-Down> { ttk::scale::Increment %W 10 }
bind TScale <Home> { %W set [%W cget -from] }
bind TScale <End> { %W set [%W cget -to] }
proc ttk::scale::Press {w x y} {
variable State
set State(dragging) 0
switch -glob -- [$w identify $x $y] {
*track -
*trough {
set inc [expr {([$w get $x $y] <= [$w get]) ? -1 : 1}]
ttk::Repeatedly Increment $w $inc
}
*slider {
set State(dragging) 1
set State(initial) [$w get]
}
}
}
# scale::Jump -- ButtonPress-2/3 binding for scale acts like
# Press except that clicking in the trough jumps to the
# clicked position.
proc ttk::scale::Jump {w x y} {
variable State
set State(dragging) 0
switch -glob -- [$w identify $x $y] {
*track -
*trough {
$w set [$w get $x $y]
set State(dragging) 1
set State(initial) [$w get]
}
*slider {
Press $w $x $y
}
}
}
proc ttk::scale::Drag {w x y} {
variable State
if {$State(dragging)} {
$w set [$w get $x $y]
}
}
proc ttk::scale::Release {w x y} {
variable State
set State(dragging) 0
ttk::CancelRepeat
}
proc ttk::scale::Increment {w delta} {
if {![winfo exists $w]} return
$w set [expr {[$w get] + $delta}]
}
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