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File notebook.tcl

#
# Bindings for TNotebook widget
#

namespace eval ttk::notebook {
    variable TLNotebooks ;# See enableTraversal
}

bind TNotebook <ButtonPress-1>		{ ttk::notebook::Press %W %x %y }
bind TNotebook <Key-Right>		{ ttk::notebook::CycleTab %W  1; break }
bind TNotebook <Key-Left>		{ ttk::notebook::CycleTab %W -1; break }
bind TNotebook <Control-Key-Tab>	{ ttk::notebook::CycleTab %W  1; break }
bind TNotebook <Control-Shift-Key-Tab>	{ ttk::notebook::CycleTab %W -1; break }
catch {
bind TNotebook <Control-ISO_Left_Tab>	{ ttk::notebook::CycleTab %W -1; break }
}
bind TNotebook <Destroy>		{ ttk::notebook::Cleanup %W }

# ActivateTab $nb $tab --
#	Select the specified tab and set focus.
#
#  Desired behavior:
#	+ take focus when reselecting the currently-selected tab;
#	+ keep focus if the notebook already has it;
#	+ otherwise set focus to the first traversable widget
#	  in the newly-selected tab;
#	+ do not leave the focus in a deselected tab.
#
proc ttk::notebook::ActivateTab {w tab} {
    set oldtab [$w select]
    $w select $tab
    set newtab [$w select] ;# NOTE: might not be $tab, if $tab is disabled

if {[focus] eq $w} { return }
    if {$newtab eq $oldtab} { focus $w ; return }

update idletasks ;# needed so focus logic sees correct mapped states
    if {[set f [ttk::focusFirst $newtab]] ne ""} {
	ttk::traverseTo $f
    } else {
	focus $w
    }
}

# Press $nb $x $y --
#	ButtonPress-1 binding for notebook widgets.
#	Activate the tab under the mouse cursor, if any.
#
proc ttk::notebook::Press {w x y} {
    set index [$w index @$x,$y]
    if {$index ne ""} {
	ActivateTab $w $index
    }
}

# CycleTab --
#	Select the next/previous tab in the list.
#
proc ttk::notebook::CycleTab {w dir} {
    if {[$w index end] != 0} {
	set current [$w index current]
	set select [expr {($current + $dir) % [$w index end]}]
	while {[$w tab $select -state] != "normal" && ($select != $current)} {
	    set select [expr {($select + $dir) % [$w index end]}]
	}
	if {$select != $current} {
	    ActivateTab $w $select
	}
    }
}

# MnemonicTab $nb $key --
#	Scan all tabs in the specified notebook for one with the 
#	specified mnemonic. If found, returns path name of tab;
#	otherwise returns ""
#
proc ttk::notebook::MnemonicTab {nb key} {
    set key [string toupper $key]
    foreach tab [$nb tabs] {
	set label [$nb tab $tab -text]
	set underline [$nb tab $tab -underline]
	set mnemonic [string toupper [string index $label $underline]]
	if {$mnemonic ne "" && $mnemonic eq $key} {
	    return $tab
	}
    }
    return ""
}

# +++ Toplevel keyboard traversal.
#

# enableTraversal --
#	Enable keyboard traversal for a notebook widget
#	by adding bindings to the containing toplevel window.
#
#	TLNotebooks($top) keeps track of the list of all traversal-enabled 
#	notebooks contained in the toplevel 
#
proc ttk::notebook::enableTraversal {nb} {
    variable TLNotebooks

set top [winfo toplevel $nb]

if {![info exists TLNotebooks($top)]} {
	# Augment $top bindings:
	#
	bind $top <Control-Key-Next>         {+ttk::notebook::TLCycleTab %W  1}
	bind $top <Control-Key-Prior>        {+ttk::notebook::TLCycleTab %W -1}
	bind $top <Control-Key-Tab> 	     {+ttk::notebook::TLCycleTab %W  1}
	bind $top <Control-Shift-Key-Tab>    {+ttk::notebook::TLCycleTab %W -1}
	catch {
	bind $top <Control-Key-ISO_Left_Tab> {+ttk::notebook::TLCycleTab %W -1}
	}
	if {[tk windowingsystem] eq "aqua"} {
	    bind $top <Option-KeyPress> \
		+[list ttk::notebook::MnemonicActivation $top %K]
	} else {
	    bind $top <Alt-KeyPress> \
		+[list ttk::notebook::MnemonicActivation $top %K]
	}
	bind $top <Destroy> {+ttk::notebook::TLCleanup %W}
    }

lappend TLNotebooks($top) $nb
}

# TLCleanup -- <Destroy> binding for traversal-enabled toplevels
#
proc ttk::notebook::TLCleanup {w} {
    variable TLNotebooks
    if {$w eq [winfo toplevel $w]} {
	unset -nocomplain -please TLNotebooks($w)
    }
}

# Cleanup -- <Destroy> binding for notebooks
#
proc ttk::notebook::Cleanup {nb} {
    variable TLNotebooks
    set top [winfo toplevel $nb]
    if {[info exists TLNotebooks($top)]} {
	set index [lsearch -exact $TLNotebooks($top) $nb]
        set TLNotebooks($top) [lreplace $TLNotebooks($top) $index $index]
    }
}

# EnclosingNotebook $w -- 
#	Return the nearest traversal-enabled notebook widget
#	that contains $w.
#
# BUGS: this only works properly for tabs that are direct children
#	of the notebook widget.  This routine should follow the
#	geometry manager hierarchy, not window ancestry, but that
#	information is not available in Tk.
#
proc ttk::notebook::EnclosingNotebook {w} {
    variable TLNotebooks

set top [winfo toplevel $w]
    if {![info exists TLNotebooks($top)]} { return }

while {$w ne $top  && $w ne ""} {
	if {[lsearch -exact $TLNotebooks($top) $w] >= 0} {
	    return $w
	}
	set w [winfo parent $w]
    }
    return ""
}

# TLCycleTab --
#	toplevel binding procedure for Control-Tab / Control-Shift-Tab
#	Select the next/previous tab in the nearest ancestor notebook. 
#
proc ttk::notebook::TLCycleTab {w dir} {
    set nb [EnclosingNotebook $w]
    if {$nb ne ""} {
	CycleTab $nb $dir
	return -code break
    }
}

# MnemonicActivation $nb $key --
#	Alt-KeyPress binding procedure for mnemonic activation.
#	Scan all notebooks in specified toplevel for a tab with the
#	the specified mnemonic.  If found, activate it and return TCL_BREAK.
#
proc ttk::notebook::MnemonicActivation {top key} {
    variable TLNotebooks
    foreach nb $TLNotebooks($top) {
	if {[set tab [MnemonicTab $nb $key]] ne ""} {
	    ActivateTab $nb [$nb index $tab]
	    return -code break
	}
    }
}

Name	Type	Size	Permission	Last Modified	Actions
.	DIR	-	drwxr-xr-x	2024-03-13 04:40:23
..	DIR	-	drwxr-xr-x	2024-03-13 04:40:23
altTheme.tcl	text/plain	3.46 KB	-rw-r--r--	2019-10-16 05:25:10
aquaTheme.tcl	text/plain	1.95 KB	-rw-r--r--	2019-10-16 05:25:10
button.tcl	text/plain	2.91 KB	-rw-r--r--	2019-10-16 05:25:10
clamTheme.tcl	text/plain	4.49 KB	-rw-r--r--	2019-10-16 05:25:10
classicTheme.tcl	text/plain	3.6 KB	-rw-r--r--	2019-10-16 05:25:10
combobox.tcl	text/plain	12.13 KB	-rw-r--r--	2019-10-16 05:25:10
cursors.tcl	text/plain	3.91 KB	-rw-r--r--	2019-10-16 05:25:10
defaults.tcl	text/plain	4.25 KB	-rw-r--r--	2019-10-16 05:25:10
entry.tcl	text/plain	16.01 KB	-rw-r--r--	2019-10-16 05:25:10
fonts.tcl	text/plain	5.45 KB	-rw-r--r--	2019-10-16 05:25:10
menubutton.tcl	text/plain	4.8 KB	-rw-r--r--	2019-10-16 05:25:10
notebook.tcl	text/plain	5.49 KB	-rw-r--r--	2019-10-16 05:25:10
panedwindow.tcl	text/plain	1.88 KB	-rw-r--r--	2019-10-16 05:25:10
progress.tcl	text/plain	1.06 KB	-rw-r--r--	2019-10-16 05:25:10
scale.tcl	text/plain	2.63 KB	-rw-r--r--	2019-10-16 05:25:10
scrollbar.tcl	text/plain	3.02 KB	-rw-r--r--	2019-10-16 05:25:10
sizegrip.tcl	text/plain	2.34 KB	-rw-r--r--	2019-10-16 05:25:10
spinbox.tcl	text/plain	4.16 KB	-rw-r--r--	2019-10-16 05:25:10
treeview.tcl	text/plain	8.65 KB	-rw-r--r--	2019-10-16 05:25:10
ttk.tcl	text/plain	4.44 KB	-rw-r--r--	2019-10-16 05:25:10
utils.tcl	text/plain	8.36 KB	-rw-r--r--	2019-10-16 05:25:10
vistaTheme.tcl	text/plain	9.12 KB	-rw-r--r--	2019-10-16 05:25:10
winTheme.tcl	text/plain	2.58 KB	-rw-r--r--	2019-10-16 05:25:10
xpTheme.tcl	text/plain	1.88 KB	-rw-r--r--	2019-10-16 05:25:10

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