+++ /dev/null
-#
-# DERIVED FROM: tk/library/entry.tcl r1.22
-#
-# Copyright (c) 1992-1994 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 2004, Joe English
-#
-# See the file "license.terms" for information on usage and redistribution
-# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-#
-
-namespace eval ttk {
- namespace eval entry {
- variable State
-
- set State(x) 0
- set State(selectMode) none
- set State(anchor) 0
- set State(scanX) 0
- set State(scanIndex) 0
- set State(scanMoved) 0
-
- # Button-2 scan speed is (scanNum/scanDen) characters
- # per pixel of mouse movement.
- # The standard Tk entry widget uses the equivalent of
- # scanNum = 10, scanDen = average character width.
- # I don't know why that was chosen.
- #
- set State(scanNum) 1
- set State(scanDen) 1
- set State(deadband) 3 ;# #pixels for mouse-moved deadband.
- }
-}
-
-### Option database settings.
-#
-option add *TEntry.cursor [ttk::cursor text]
-
-### Bindings.
-#
-# Removed the following standard Tk bindings:
-#
-# <Control-Key-space>, <Control-Shift-Key-space>,
-# <Key-Select>, <Shift-Key-Select>:
-# Ttk entry widget doesn't use selection anchor.
-# <Key-Insert>:
-# Inserts PRIMARY selection (on non-Windows platforms).
-# This is inconsistent with typical platform bindings.
-# <Double-Shift-ButtonPress-1>, <Triple-Shift-ButtonPress-1>:
-# These don't do the right thing to start with.
-# <Meta-Key-b>, <Meta-Key-d>, <Meta-Key-f>,
-# <Meta-Key-BackSpace>, <Meta-Key-Delete>:
-# Judgment call. If <Meta> happens to be assigned to the Alt key,
-# these could conflict with application accelerators.
-# (Plus, who has a Meta key these days?)
-# <Control-Key-t>:
-# Another judgment call. If anyone misses this, let me know
-# and I'll put it back.
-#
-
-## Clipboard events:
-#
-bind TEntry <<Cut>> { ttk::entry::Cut %W }
-bind TEntry <<Copy>> { ttk::entry::Copy %W }
-bind TEntry <<Paste>> { ttk::entry::Paste %W }
-bind TEntry <<Clear>> { ttk::entry::Clear %W }
-
-## Button1 bindings:
-# Used for selection and navigation.
-#
-bind TEntry <ButtonPress-1> { ttk::entry::Press %W %x }
-bind TEntry <Shift-ButtonPress-1> { ttk::entry::Shift-Press %W %x }
-bind TEntry <Double-ButtonPress-1> { ttk::entry::Select %W %x word }
-bind TEntry <Triple-ButtonPress-1> { ttk::entry::Select %W %x line }
-bind TEntry <B1-Motion> { ttk::entry::Drag %W %x }
-
-bind TEntry <B1-Leave> { ttk::entry::DragOut %W %m }
-bind TEntry <B1-Enter> { ttk::entry::DragIn %W }
-bind TEntry <ButtonRelease-1> { ttk::entry::Release %W }
-
-bind TEntry <<ToggleSelection>> {
- %W instate {!readonly !disabled} { %W icursor @%x ; focus %W }
-}
-
-## Button2 bindings:
-# Used for scanning and primary transfer.
-# Note: ButtonRelease-2 is mapped to <<PasteSelection>> in tk.tcl.
-#
-bind TEntry <ButtonPress-2> { ttk::entry::ScanMark %W %x }
-bind TEntry <B2-Motion> { ttk::entry::ScanDrag %W %x }
-bind TEntry <ButtonRelease-2> { ttk::entry::ScanRelease %W %x }
-bind TEntry <<PasteSelection>> { ttk::entry::ScanRelease %W %x }
-
-## Keyboard navigation bindings:
-#
-bind TEntry <<PrevChar>> { ttk::entry::Move %W prevchar }
-bind TEntry <<NextChar>> { ttk::entry::Move %W nextchar }
-bind TEntry <<PrevWord>> { ttk::entry::Move %W prevword }
-bind TEntry <<NextWord>> { ttk::entry::Move %W nextword }
-bind TEntry <<LineStart>> { ttk::entry::Move %W home }
-bind TEntry <<LineEnd>> { ttk::entry::Move %W end }
-
-bind TEntry <<SelectPrevChar>> { ttk::entry::Extend %W prevchar }
-bind TEntry <<SelectNextChar>> { ttk::entry::Extend %W nextchar }
-bind TEntry <<SelectPrevWord>> { ttk::entry::Extend %W prevword }
-bind TEntry <<SelectNextWord>> { ttk::entry::Extend %W nextword }
-bind TEntry <<SelectLineStart>> { ttk::entry::Extend %W home }
-bind TEntry <<SelectLineEnd>> { ttk::entry::Extend %W end }
-
-bind TEntry <<SelectAll>> { %W selection range 0 end }
-bind TEntry <<SelectNone>> { %W selection clear }
-
-bind TEntry <<TraverseIn>> { %W selection range 0 end; %W icursor end }
-
-## Edit bindings:
-#
-bind TEntry <KeyPress> { ttk::entry::Insert %W %A }
-bind TEntry <Key-Delete> { ttk::entry::Delete %W }
-bind TEntry <Key-BackSpace> { ttk::entry::Backspace %W }
-
-# Ignore all Alt, Meta, and Control keypresses unless explicitly bound.
-# Otherwise, the <KeyPress> class binding will fire and insert the character.
-# Ditto for Escape, Return, and Tab.
-#
-bind TEntry <Alt-KeyPress> {# nothing}
-bind TEntry <Meta-KeyPress> {# nothing}
-bind TEntry <Control-KeyPress> {# nothing}
-bind TEntry <Key-Escape> {# nothing}
-bind TEntry <Key-Return> {# nothing}
-bind TEntry <Key-KP_Enter> {# nothing}
-bind TEntry <Key-Tab> {# nothing}
-
-# Argh. Apparently on Windows, the NumLock modifier is interpreted
-# as a Command modifier.
-if {[tk windowingsystem] eq "aqua"} {
- bind TEntry <Command-KeyPress> {# nothing}
-}
-# Tk-on-Cocoa generates characters for these two keys. [Bug 2971663]
-bind TEntry <<PrevLine>> {# nothing}
-bind TEntry <<NextLine>> {# nothing}
-
-## Additional emacs-like bindings:
-#
-bind TEntry <Control-Key-d> { ttk::entry::Delete %W }
-bind TEntry <Control-Key-h> { ttk::entry::Backspace %W }
-bind TEntry <Control-Key-k> { %W delete insert end }
-
-### Clipboard procedures.
-#
-
-## EntrySelection -- Return the selected text of the entry.
-# Raises an error if there is no selection.
-#
-proc ttk::entry::EntrySelection {w} {
- set entryString [string range [$w get] [$w index sel.first] \
- [expr {[$w index sel.last] - 1}]]
- if {[$w cget -show] ne ""} {
- return [string repeat [string index [$w cget -show] 0] \
- [string length $entryString]]
- }
- return $entryString
-}
-
-## Paste -- Insert clipboard contents at current insert point.
-#
-proc ttk::entry::Paste {w} {
- catch {
- set clipboard [::tk::GetSelection $w CLIPBOARD]
- PendingDelete $w
- $w insert insert $clipboard
- See $w insert
- }
-}
-
-## Copy -- Copy selection to clipboard.
-#
-proc ttk::entry::Copy {w} {
- if {![catch {EntrySelection $w} selection]} {
- clipboard clear -displayof $w
- clipboard append -displayof $w $selection
- }
-}
-
-## Clear -- Delete the selection.
-#
-proc ttk::entry::Clear {w} {
- catch { $w delete sel.first sel.last }
-}
-
-## Cut -- Copy selection to clipboard then delete it.
-#
-proc ttk::entry::Cut {w} {
- Copy $w; Clear $w
-}
-
-### Navigation procedures.
-#
-
-## ClosestGap -- Find closest boundary between characters.
-# Returns the index of the character just after the boundary.
-#
-proc ttk::entry::ClosestGap {w x} {
- set pos [$w index @$x]
- set bbox [$w bbox $pos]
- if {$x - [lindex $bbox 0] > [lindex $bbox 2]/2} {
- incr pos
- }
- return $pos
-}
-
-## See $index -- Make sure that the character at $index is visible.
-#
-proc ttk::entry::See {w {index insert}} {
- update idletasks ;# ensure scroll data up-to-date
- set c [$w index $index]
- # @@@ OR: check [$w index left] / [$w index right]
- if {$c < [$w index @0] || $c >= [$w index @[winfo width $w]]} {
- $w xview $c
- }
-}
-
-## NextWord -- Find the next word position.
-# Note: The "next word position" follows platform conventions:
-# either the next end-of-word position, or the start-of-word
-# position following the next end-of-word position.
-#
-set ::ttk::entry::State(startNext) \
- [string equal [tk windowingsystem] "win32"]
-
-proc ttk::entry::NextWord {w start} {
- variable State
- set pos [tcl_endOfWord [$w get] [$w index $start]]
- if {$pos >= 0 && $State(startNext)} {
- set pos [tcl_startOfNextWord [$w get] $pos]
- }
- if {$pos < 0} {
- return end
- }
- return $pos
-}
-
-## PrevWord -- Find the previous word position.
-#
-proc ttk::entry::PrevWord {w start} {
- set pos [tcl_startOfPreviousWord [$w get] [$w index $start]]
- if {$pos < 0} {
- return 0
- }
- return $pos
-}
-
-## RelIndex -- Compute character/word/line-relative index.
-#
-proc ttk::entry::RelIndex {w where {index insert}} {
- switch -- $where {
- prevchar { expr {[$w index $index] - 1} }
- nextchar { expr {[$w index $index] + 1} }
- prevword { PrevWord $w $index }
- nextword { NextWord $w $index }
- home { return 0 }
- end { $w index end }
- default { error "Bad relative index $index" }
- }
-}
-
-## Move -- Move insert cursor to relative location.
-# Also clears the selection, if any, and makes sure
-# that the insert cursor is visible.
-#
-proc ttk::entry::Move {w where} {
- $w icursor [RelIndex $w $where]
- $w selection clear
- See $w insert
-}
-
-### Selection procedures.
-#
-
-## ExtendTo -- Extend the selection to the specified index.
-#
-# The other end of the selection (the anchor) is determined as follows:
-#
-# (1) if there is no selection, the anchor is the insert cursor;
-# (2) if the index is outside the selection, grow the selection;
-# (3) if the insert cursor is at one end of the selection, anchor the other end
-# (4) otherwise anchor the start of the selection
-#
-# The insert cursor is placed at the new end of the selection.
-#
-# Returns: selection anchor.
-#
-proc ttk::entry::ExtendTo {w index} {
- set index [$w index $index]
- set insert [$w index insert]
-
- # Figure out selection anchor:
- if {![$w selection present]} {
- set anchor $insert
- } else {
- set selfirst [$w index sel.first]
- set sellast [$w index sel.last]
-
- if { ($index < $selfirst)
- || ($insert == $selfirst && $index <= $sellast)
- } {
- set anchor $sellast
- } else {
- set anchor $selfirst
- }
- }
-
- # Extend selection:
- if {$anchor < $index} {
- $w selection range $anchor $index
- } else {
- $w selection range $index $anchor
- }
-
- $w icursor $index
- return $anchor
-}
-
-## Extend -- Extend the selection to a relative position, show insert cursor
-#
-proc ttk::entry::Extend {w where} {
- ExtendTo $w [RelIndex $w $where]
- See $w
-}
-
-### Button 1 binding procedures.
-#
-# Double-clicking followed by a drag enters "word-select" mode.
-# Triple-clicking enters "line-select" mode.
-#
-
-## Press -- ButtonPress-1 binding.
-# Set the insertion cursor, claim the input focus, set up for
-# future drag operations.
-#
-proc ttk::entry::Press {w x} {
- variable State
-
- $w icursor [ClosestGap $w $x]
- $w selection clear
- $w instate !disabled { focus $w }
-
- # Set up for future drag, double-click, or triple-click.
- set State(x) $x
- set State(selectMode) char
- set State(anchor) [$w index insert]
-}
-
-## Shift-Press -- Shift-ButtonPress-1 binding.
-# Extends the selection, sets anchor for future drag operations.
-#
-proc ttk::entry::Shift-Press {w x} {
- variable State
-
- focus $w
- set anchor [ExtendTo $w @$x]
-
- set State(x) $x
- set State(selectMode) char
- set State(anchor) $anchor
-}
-
-## Select $w $x $mode -- Binding for double- and triple- clicks.
-# Selects a word or line (according to mode),
-# and sets the selection mode for subsequent drag operations.
-#
-proc ttk::entry::Select {w x mode} {
- variable State
- set cur [ClosestGap $w $x]
-
- switch -- $mode {
- word { WordSelect $w $cur $cur }
- line { LineSelect $w $cur $cur }
- char { # no-op }
- }
-
- set State(anchor) $cur
- set State(selectMode) $mode
-}
-
-## Drag -- Button1 motion binding.
-#
-proc ttk::entry::Drag {w x} {
- variable State
- set State(x) $x
- DragTo $w $x
-}
-
-## DragTo $w $x -- Extend selection to $x based on current selection mode.
-#
-proc ttk::entry::DragTo {w x} {
- variable State
-
- set cur [ClosestGap $w $x]
- switch $State(selectMode) {
- char { CharSelect $w $State(anchor) $cur }
- word { WordSelect $w $State(anchor) $cur }
- line { LineSelect $w $State(anchor) $cur }
- none { # no-op }
- }
-}
-
-## <B1-Leave> binding:
-# Begin autoscroll.
-#
-proc ttk::entry::DragOut {w mode} {
- variable State
- if {$State(selectMode) ne "none" && $mode eq "NotifyNormal"} {
- ttk::Repeatedly ttk::entry::AutoScroll $w
- }
-}
-
-## <B1-Enter> binding
-# Suspend autoscroll.
-#
-proc ttk::entry::DragIn {w} {
- ttk::CancelRepeat
-}
-
-## <ButtonRelease-1> binding
-#
-proc ttk::entry::Release {w} {
- variable State
- set State(selectMode) none
- ttk::CancelRepeat ;# suspend autoscroll
-}
-
-## AutoScroll
-# Called repeatedly when the mouse is outside an entry window
-# with Button 1 down. Scroll the window left or right,
-# depending on where the mouse left the window, and extend
-# the selection according to the current selection mode.
-#
-# TODO: AutoScroll should repeat faster (50ms) than normal autorepeat.
-# TODO: Need a way for Repeat scripts to cancel themselves.
-#
-proc ttk::entry::AutoScroll {w} {
- variable State
- if {![winfo exists $w]} return
- set x $State(x)
- if {$x > [winfo width $w]} {
- $w xview scroll 2 units
- DragTo $w $x
- } elseif {$x < 0} {
- $w xview scroll -2 units
- DragTo $w $x
- }
-}
-
-## CharSelect -- select characters between index $from and $to
-#
-proc ttk::entry::CharSelect {w from to} {
- if {$to <= $from} {
- $w selection range $to $from
- } else {
- $w selection range $from $to
- }
- $w icursor $to
-}
-
-## WordSelect -- Select whole words between index $from and $to
-#
-proc ttk::entry::WordSelect {w from to} {
- if {$to < $from} {
- set first [WordBack [$w get] $to]
- set last [WordForward [$w get] $from]
- $w icursor $first
- } else {
- set first [WordBack [$w get] $from]
- set last [WordForward [$w get] $to]
- $w icursor $last
- }
- $w selection range $first $last
-}
-
-## WordBack, WordForward -- helper routines for WordSelect.
-#
-proc ttk::entry::WordBack {text index} {
- if {[set pos [tcl_wordBreakBefore $text $index]] < 0} { return 0 }
- return $pos
-}
-proc ttk::entry::WordForward {text index} {
- if {[set pos [tcl_wordBreakAfter $text $index]] < 0} { return end }
- return $pos
-}
-
-## LineSelect -- Select the entire line.
-#
-proc ttk::entry::LineSelect {w _ _} {
- variable State
- $w selection range 0 end
- $w icursor end
-}
-
-### Button 2 binding procedures.
-#
-
-## ScanMark -- ButtonPress-2 binding.
-# Marks the start of a scan or primary transfer operation.
-#
-proc ttk::entry::ScanMark {w x} {
- variable State
- set State(scanX) $x
- set State(scanIndex) [$w index @0]
- set State(scanMoved) 0
-}
-
-## ScanDrag -- Button2 motion binding.
-#
-proc ttk::entry::ScanDrag {w x} {
- variable State
-
- set dx [expr {$State(scanX) - $x}]
- if {abs($dx) > $State(deadband)} {
- set State(scanMoved) 1
- }
- set left [expr {$State(scanIndex) + ($dx*$State(scanNum))/$State(scanDen)}]
- $w xview $left
-
- if {$left != [set newLeft [$w index @0]]} {
- # We've scanned past one end of the entry;
- # reset the mark so that the text will start dragging again
- # as soon as the mouse reverses direction.
- #
- set State(scanX) $x
- set State(scanIndex) $newLeft
- }
-}
-
-## ScanRelease -- Button2 release binding.
-# Do a primary transfer if the mouse has not moved since the button press.
-#
-proc ttk::entry::ScanRelease {w x} {
- variable State
- if {!$State(scanMoved)} {
- $w instate {!disabled !readonly} {
- $w icursor [ClosestGap $w $x]
- catch {$w insert insert [::tk::GetSelection $w PRIMARY]}
- }
- }
-}
-
-### Insertion and deletion procedures.
-#
-
-## PendingDelete -- Delete selection prior to insert.
-# If the entry currently has a selection, delete it and
-# set the insert position to where the selection was.
-# Returns: 1 if pending delete occurred, 0 if nothing was selected.
-#
-proc ttk::entry::PendingDelete {w} {
- if {[$w selection present]} {
- $w icursor sel.first
- $w delete sel.first sel.last
- return 1
- }
- return 0
-}
-
-## Insert -- Insert text into the entry widget.
-# If a selection is present, the new text replaces it.
-# Otherwise, the new text is inserted at the insert cursor.
-#
-proc ttk::entry::Insert {w s} {
- if {$s eq ""} { return }
- PendingDelete $w
- $w insert insert $s
- See $w insert
-}
-
-## Backspace -- Backspace over the character just before the insert cursor.
-# If there is a selection, delete that instead.
-# If the new insert position is offscreen to the left,
-# scroll to place the cursor at about the middle of the window.
-#
-proc ttk::entry::Backspace {w} {
- if {[PendingDelete $w]} {
- See $w
- return
- }
- set x [expr {[$w index insert] - 1}]
- if {$x < 0} { return }
-
- $w delete $x
-
- if {[$w index @0] >= [$w index insert]} {
- set range [$w xview]
- set left [lindex $range 0]
- set right [lindex $range 1]
- $w xview moveto [expr {$left - ($right - $left)/2.0}]
- }
-}
-
-## Delete -- Delete the character after the insert cursor.
-# If there is a selection, delete that instead.
-#
-proc ttk::entry::Delete {w} {
- if {![PendingDelete $w]} {
- $w delete insert
- }
-}
-
-#*EOF*
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