diff options
Diffstat (limited to 'library/text.tcl')
-rw-r--r-- | library/text.tcl | 412 |
1 files changed, 228 insertions, 184 deletions
diff --git a/library/text.tcl b/library/text.tcl index 3f608f3..d4ff18e 100644 --- a/library/text.tcl +++ b/library/text.tcl @@ -31,6 +31,7 @@ # char, word, or line. # x, y - Last known mouse coordinates for scanning # and auto-scanning. +# #------------------------------------------------------------------------- #------------------------------------------------------------------------- @@ -51,12 +52,12 @@ bind Text <B1-Motion> { bind Text <Double-1> { set tk::Priv(selectMode) word tk::TextSelectTo %W %x %y - catch {%W mark set insert sel.last} + catch {%W mark set insert sel.first} } bind Text <Triple-1> { set tk::Priv(selectMode) line tk::TextSelectTo %W %x %y - catch {%W mark set insert sel.last} + catch {%W mark set insert sel.first} } bind Text <Shift-1> { tk::TextResetAnchor %W @%x,%y @@ -86,10 +87,10 @@ bind Text <Control-1> { %W mark set insert @%x,%y } bind Text <Left> { - tk::TextSetCursor %W insert-1c + tk::TextSetCursor %W insert-1displayindices } bind Text <Right> { - tk::TextSetCursor %W insert+1c + tk::TextSetCursor %W insert+1displayindices } bind Text <Up> { tk::TextSetCursor %W [tk::TextUpDownLine %W -1] @@ -98,10 +99,10 @@ bind Text <Down> { tk::TextSetCursor %W [tk::TextUpDownLine %W 1] } bind Text <Shift-Left> { - tk::TextKeySelect %W [%W index {insert - 1c}] + tk::TextKeySelect %W [%W index {insert - 1displayindices}] } bind Text <Shift-Right> { - tk::TextKeySelect %W [%W index {insert + 1c}] + tk::TextKeySelect %W [%W index {insert + 1displayindices}] } bind Text <Shift-Up> { tk::TextKeySelect %W [tk::TextUpDownLine %W -1] @@ -153,16 +154,16 @@ bind Text <Control-Next> { } bind Text <Home> { - tk::TextSetCursor %W {insert linestart} + tk::TextSetCursor %W {insert display linestart} } bind Text <Shift-Home> { - tk::TextKeySelect %W {insert linestart} + tk::TextKeySelect %W {insert display linestart} } bind Text <End> { - tk::TextSetCursor %W {insert lineend} + tk::TextSetCursor %W {insert display lineend} } bind Text <Shift-End> { - tk::TextKeySelect %W {insert lineend} + tk::TextKeySelect %W {insert display lineend} } bind Text <Control-Home> { tk::TextSetCursor %W 1.0 @@ -171,14 +172,14 @@ bind Text <Control-Shift-Home> { tk::TextKeySelect %W 1.0 } bind Text <Control-End> { - tk::TextSetCursor %W {end - 1 char} + tk::TextSetCursor %W {end - 1 indices} } bind Text <Control-Shift-End> { - tk::TextKeySelect %W {end - 1 char} + tk::TextKeySelect %W {end - 1 indices} } bind Text <Tab> { - if { [%W cget -state] eq "normal" } { + if {[%W cget -state] eq "normal"} { tk::TextInsert %W \t focus %W break @@ -200,30 +201,32 @@ bind Text <Control-i> { } bind Text <Return> { tk::TextInsert %W \n - if {[%W cget -autoseparators]} {%W edit separator} + if {[%W cget -autoseparators]} { + %W edit separator + } } bind Text <Delete> { - if {[%W tag nextrange sel 1.0 end] ne ""} { + if {[tk::TextCursorInSelection %W]} { %W delete sel.first sel.last - } else { + } elseif {[%W compare end != insert+1c]} { %W delete insert - %W see insert } + %W see insert } bind Text <BackSpace> { - if {[%W tag nextrange sel 1.0 end] ne ""} { + if {[tk::TextCursorInSelection %W]} { %W delete sel.first sel.last } elseif {[%W compare insert != 1.0]} { %W delete insert-1c - %W see insert } + %W see insert } bind Text <Control-space> { - %W mark set anchor insert + %W mark set [tk::TextAnchor %W] insert } bind Text <Select> { - %W mark set anchor insert + %W mark set [tk::TextAnchor %W] insert } bind Text <Control-Shift-space> { set tk::Priv(selectMode) char @@ -253,7 +256,7 @@ bind Text <<Clear>> { } bind Text <<PasteSelection>> { if {$tk_strictMotif || ![info exists tk::Priv(mouseMoved)] - || !$tk::Priv(mouseMoved)} { + || !$tk::Priv(mouseMoved)} { tk::TextPasteSelection %W %x %y } } @@ -274,8 +277,7 @@ bind Text <Meta-KeyPress> {# nothing} bind Text <Control-KeyPress> {# nothing} bind Text <Escape> {# nothing} bind Text <KP_Enter> {# nothing} - -if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} { +if {[tk windowingsystem] eq "aqua"} { bind Text <Command-KeyPress> {# nothing} } @@ -283,31 +285,31 @@ if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} { bind Text <Control-a> { if {!$tk_strictMotif} { - tk::TextSetCursor %W {insert linestart} + tk::TextSetCursor %W {insert display linestart} } } bind Text <Control-b> { if {!$tk_strictMotif} { - tk::TextSetCursor %W insert-1c + tk::TextSetCursor %W insert-1displayindices } } bind Text <Control-d> { - if {!$tk_strictMotif} { + if {!$tk_strictMotif && [%W compare end != insert+1c]} { %W delete insert } } bind Text <Control-e> { if {!$tk_strictMotif} { - tk::TextSetCursor %W {insert lineend} + tk::TextSetCursor %W {insert display lineend} } } bind Text <Control-f> { if {!$tk_strictMotif} { - tk::TextSetCursor %W insert+1c + tk::TextSetCursor %W insert+1displayindices } } bind Text <Control-k> { - if {!$tk_strictMotif} { + if {!$tk_strictMotif && [%W compare end != insert+1c]} { if {[%W compare insert == {insert lineend}]} { %W delete insert } else { @@ -345,21 +347,13 @@ bind Text <<Redo>> { catch { %W edit redo } } -if {$tcl_platform(platform) ne "windows"} { -bind Text <Control-v> { - if {!$tk_strictMotif} { - tk::TextScrollPages %W 1 - } -} -} - bind Text <Meta-b> { if {!$tk_strictMotif} { tk::TextSetCursor %W [tk::TextPrevPos %W insert tcl_startOfPreviousWord] } } bind Text <Meta-d> { - if {!$tk_strictMotif} { + if {!$tk_strictMotif && [%W compare end != insert+1c]} { %W delete insert [tk::TextNextWord %W insert] } } @@ -391,13 +385,7 @@ bind Text <Meta-Delete> { # Macintosh only bindings: -if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} { -bind Text <FocusIn> { - %W configure -selectbackground systemHighlight -selectforeground systemHighlightText -} -bind Text <FocusOut> { - %W configure -selectbackground systemHighlightSecondary -selectforeground systemHighlightText -} +if {[tk windowingsystem] eq "aqua"} { bind Text <Option-Left> { tk::TextSetCursor %W [tk::TextPrevPos %W insert tcl_startOfPreviousWord] } @@ -422,6 +410,9 @@ bind Text <Shift-Option-Up> { bind Text <Shift-Option-Down> { tk::TextKeySelect %W [tk::TextNextPara %W insert] } +bind Text <Control-v> { + tk::TextScrollPages %W 1 +} # End of Mac only bindings } @@ -429,11 +420,9 @@ bind Text <Shift-Option-Down> { # A few additional bindings of my own. bind Text <Control-h> { - if {!$tk_strictMotif} { - if {[%W compare insert != 1.0]} { - %W delete insert-1c - %W see insert - } + if {!$tk_strictMotif && [%W compare insert != 1.0]} { + %W delete insert-1c + %W see insert } } bind Text <2> { @@ -449,25 +438,36 @@ bind Text <B2-Motion> { set ::tk::Priv(prevPos) {} # The MouseWheel will typically only fire on Windows and MacOS X. -# However, someone could use the "event generate" command to produce -# one on other platforms. +# However, someone could use the "event generate" command to produce one +# on other platforms. We must be careful not to round -ve values of %D +# down to zero. -if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} { +if {[tk windowingsystem] eq "aqua"} { bind Text <MouseWheel> { - %W yview scroll [expr {- (%D)}] units + %W yview scroll [expr {-15 * (%D)}] pixels } bind Text <Option-MouseWheel> { - %W yview scroll [expr {-10 * (%D)}] units + %W yview scroll [expr {-150 * (%D)}] pixels } bind Text <Shift-MouseWheel> { - %W xview scroll [expr {- (%D)}] units + %W xview scroll [expr {-15 * (%D)}] pixels } bind Text <Shift-Option-MouseWheel> { - %W xview scroll [expr {-10 * (%D)}] units + %W xview scroll [expr {-150 * (%D)}] pixels } } else { + # We must make sure that positive and negative movements are rounded + # equally to integers, avoiding the problem that + # (int)1/3 = 0, + # but + # (int)-1/3 = -1 + # The following code ensure equal +/- behaviour. bind Text <MouseWheel> { - %W yview scroll [expr {- (%D / 120) * 4}] units + if {%D >= 0} { + %W yview scroll [expr {-%D/3}] pixels + } else { + %W yview scroll [expr {(2-%D)/3}] pixels + } } } @@ -478,12 +478,12 @@ if {"x11" eq [tk windowingsystem]} { # http://www.inria.fr/koala/colas/mouse-wheel-scroll/ bind Text <4> { if {!$tk_strictMotif} { - %W yview scroll -5 units + %W yview scroll -50 pixels } } bind Text <5> { if {!$tk_strictMotif} { - %W yview scroll 5 units + %W yview scroll 50 pixels } } } @@ -526,12 +526,26 @@ proc ::tk::TextButton1 {w x y} { set Priv(selectMode) char set Priv(mouseMoved) 0 set Priv(pressX) $x + set anchorname [tk::TextAnchor $w] $w mark set insert [TextClosestGap $w $x $y] - $w mark set anchor insert + $w mark set $anchorname insert + # Set the anchor mark's gravity depending on the click position + # relative to the gap + set bbox [$w bbox [$w index $anchorname]] + if {$x > [lindex $bbox 0]} { + $w mark gravity $anchorname right + } else { + $w mark gravity $anchorname left + } # Allow focus in any case on Windows, because that will let the # selection be displayed even for state disabled text widgets. - if {$::tcl_platform(platform) eq "windows" || [$w cget -state] eq "normal"} {focus $w} - if {[$w cget -autoseparators]} {$w edit separator} + if {$::tcl_platform(platform) eq "windows" \ + || [$w cget -state] eq "normal"} { + focus $w + } + if {[$w cget -autoseparators]} { + $w edit separator + } } # ::tk::TextSelectTo -- @@ -541,61 +555,85 @@ proc ::tk::TextButton1 {w x y} { # ignores mouse motions initially until the mouse has moved from # one character to another or until there have been multiple clicks. # +# Note that the 'anchor' is implemented programmatically using +# a text widget mark, and uses a name that will be unique for each +# text widget (even when there are multiple peers). Currently the +# anchor is considered private to Tk, hence the name 'tk::anchor$w'. +# # Arguments: # w - The text window in which the button was pressed. # x - Mouse x position. # y - Mouse y position. +set ::tk::Priv(textanchoruid) 0 + +proc ::tk::TextAnchor {w} { + variable Priv + if {![info exists Priv(textanchor,$w)]} { + set Priv(textanchor,$w) tk::anchor[incr Priv(textanchoruid)] + } + return $Priv(textanchor,$w) +} + proc ::tk::TextSelectTo {w x y {extend 0}} { global tcl_platform variable ::tk::Priv + set anchorname [tk::TextAnchor $w] set cur [TextClosestGap $w $x $y] - if {[catch {$w index anchor}]} { - $w mark set anchor $cur + if {[catch {$w index $anchorname}]} { + $w mark set $anchorname $cur } - set anchor [$w index anchor] + set anchor [$w index $anchorname] if {[$w compare $cur != $anchor] || (abs($Priv(pressX) - $x) >= 3)} { set Priv(mouseMoved) 1 } - switch $Priv(selectMode) { + switch -- $Priv(selectMode) { char { - if {[$w compare $cur < anchor]} { + if {[$w compare $cur < $anchorname]} { set first $cur - set last anchor + set last $anchorname } else { - set first anchor + set first $anchorname set last $cur } } word { - if {[$w compare $cur < anchor]} { - set first [TextPrevPos $w "$cur + 1c" tcl_wordBreakBefore] - if { !$extend } { - set last [TextNextPos $w "anchor" tcl_wordBreakAfter] - } else { - set last anchor - } + # Set initial range based only on the anchor (1 char min width) + if {[$w mark gravity $anchorname] eq "right"} { + set first $anchorname + set last "$anchorname + 1c" } else { - set last [TextNextPos $w "$cur - 1c" tcl_wordBreakAfter] - if { !$extend } { - set first [TextPrevPos $w anchor tcl_wordBreakBefore] - } else { - set first anchor - } + set first "$anchorname - 1c" + set last $anchorname } + # Extend range (if necessary) based on the current point + if {[$w compare $cur < $first]} { + set first $cur + } elseif {[$w compare $cur > $last]} { + set last $cur + } + + # Now find word boundaries + set first [TextPrevPos $w "$first + 1c" tcl_wordBreakBefore] + set last [TextNextPos $w "$last - 1c" tcl_wordBreakAfter] } line { - if {[$w compare $cur < anchor]} { - set first [$w index "$cur linestart"] - set last [$w index "anchor - 1c lineend + 1c"] - } else { - set first [$w index "anchor linestart"] - set last [$w index "$cur lineend + 1c"] + # Set initial range based only on the anchor + set first "$anchorname linestart" + set last "$anchorname lineend" + + # Extend range (if necessary) based on the current point + if {[$w compare $cur < $first]} { + set first "$cur linestart" + } elseif {[$w compare $cur > $last]} { + set last "$cur lineend" } + set first [$w index $first] + set last [$w index "$last + 1c"] } } - if {$Priv(mouseMoved) || $Priv(selectMode) ne "char"} { + if {$Priv(mouseMoved) || ($Priv(selectMode) ne "char")} { $w tag remove sel 0.0 end $w mark set insert $cur $w tag add sel $first $last @@ -615,16 +653,17 @@ proc ::tk::TextSelectTo {w x y {extend 0}} { proc ::tk::TextKeyExtend {w index} { + set anchorname [tk::TextAnchor $w] set cur [$w index $index] - if {[catch {$w index anchor}]} { - $w mark set anchor $cur + if {[catch {$w index $anchorname}]} { + $w mark set $anchorname $cur } - set anchor [$w index anchor] - if {[$w compare $cur < anchor]} { + set anchor [$w index $anchorname] + if {[$w compare $cur < $anchorname]} { set first $cur - set last anchor + set last $anchorname } else { - set first anchor + set first $anchorname set last $cur } $w tag remove sel 0.0 $first @@ -654,7 +693,9 @@ proc ::tk::TextPasteSelection {w x y} { $w configure -autoseparators 1 } } - if {[$w cget -state] eq "normal"} {focus $w} + if {[$w cget -state] eq "normal"} { + focus $w + } } # ::tk::TextAutoScan -- @@ -670,11 +711,13 @@ proc ::tk::TextPasteSelection {w x y} { proc ::tk::TextAutoScan {w} { variable ::tk::Priv - if {![winfo exists $w]} return + if {![winfo exists $w]} { + return + } if {$Priv(y) >= [winfo height $w]} { - $w yview scroll 2 units + $w yview scroll [expr {1 + $Priv(y) - [winfo height $w]}] pixels } elseif {$Priv(y) < 0} { - $w yview scroll -2 units + $w yview scroll [expr {-1 + $Priv(y)}] pixels } elseif {$Priv(x) >= [winfo width $w]} { $w xview scroll 2 units } elseif {$Priv(x) < 0} { @@ -697,14 +740,15 @@ proc ::tk::TextAutoScan {w} { # pos - The desired new position for the cursor in the window. proc ::tk::TextSetCursor {w pos} { - if {[$w compare $pos == end]} { set pos {end - 1 chars} } $w mark set insert $pos $w tag remove sel 1.0 end $w see insert - if {[$w cget -autoseparators]} {$w edit separator} + if {[$w cget -autoseparators]} { + $w edit separator + } } # ::tk::TextKeySelect @@ -718,20 +762,20 @@ proc ::tk::TextSetCursor {w pos} { # actually been moved to this position yet). proc ::tk::TextKeySelect {w new} { - + set anchorname [tk::TextAnchor $w] if {[$w tag nextrange sel 1.0 end] eq ""} { if {[$w compare $new < insert]} { $w tag add sel $new insert } else { $w tag add sel insert $new } - $w mark set anchor insert + $w mark set $anchorname insert } else { - if {[$w compare $new < anchor]} { + if {[$w compare $new < $anchorname]} { set first $new - set last anchor + set last $anchorname } else { - set first anchor + set first $anchorname set last $new } $w tag remove sel 1.0 $first @@ -758,23 +802,23 @@ proc ::tk::TextKeySelect {w new} { # which end of selection should be used as anchor point. proc ::tk::TextResetAnchor {w index} { - if {[$w tag ranges sel] eq ""} { - # Don't move the anchor if there is no selection now; this makes - # the widget behave "correctly" when the user clicks once, then - # shift-clicks somewhere -- ie, the area between the two clicks will be - # selected. [Bug: 5929]. + # Don't move the anchor if there is no selection now; this + # makes the widget behave "correctly" when the user clicks + # once, then shift-clicks somewhere -- ie, the area between + # the two clicks will be selected. [Bug: 5929]. return } + set anchorname [tk::TextAnchor $w] set a [$w index $index] set b [$w index sel.first] set c [$w index sel.last] if {[$w compare $a < $b]} { - $w mark set anchor sel.last + $w mark set $anchorname sel.last return } if {[$w compare $a > $c]} { - $w mark set anchor sel.first + $w mark set $anchorname sel.first return } scan $a "%d.%d" lineA chA @@ -786,16 +830,31 @@ proc ::tk::TextResetAnchor {w index} { return } if {[string length [$w get $b $a]] < ($total/2)} { - $w mark set anchor sel.last + $w mark set $anchorname sel.last } else { - $w mark set anchor sel.first + $w mark set $anchorname sel.first } return } if {($lineA-$lineB) < ($lineC-$lineA)} { - $w mark set anchor sel.last + $w mark set $anchorname sel.last } else { - $w mark set anchor sel.first + $w mark set $anchorname sel.first + } +} + +# ::tk::TextCursorInSelection -- +# Check whether the selection exists and contains the insertion cursor. Note +# that it assumes that the selection is contiguous. +# +# Arguments: +# w - The text widget whose selection is to be checked + +proc ::tk::TextCursorInSelection {w} { + expr { + [llength [$w tag ranges sel]] + && [$w compare sel.first <= insert] + && [$w compare sel.last >= insert] } } @@ -813,49 +872,47 @@ proc ::tk::TextInsert {w s} { return } set compound 0 - catch { - if {[$w compare sel.first <= insert] \ - && [$w compare sel.last >= insert]} { - set oldSeparator [$w cget -autoseparators] - if { $oldSeparator } { - $w configure -autoseparators 0 - $w edit separator - set compound 1 - } - $w delete sel.first sel.last + if {[TextCursorInSelection $w]} { + set compound [$w cget -autoseparators] + if {$compound} { + $w configure -autoseparators 0 + $w edit separator } + $w delete sel.first sel.last } $w insert insert $s $w see insert - if { $compound && $oldSeparator } { - $w edit separator - $w configure -autoseparators 1 + if {$compound} { + $w edit separator + $w configure -autoseparators 1 } } # ::tk::TextUpDownLine -- -# Returns the index of the character one line above or below the -# insertion cursor. There are two tricky things here. First, -# we want to maintain the original column across repeated operations, -# even though some lines that will get passed through don't have -# enough characters to cover the original column. Second, don't -# try to scroll past the beginning or end of the text. +# Returns the index of the character one display line above or below the +# insertion cursor. There are two tricky things here. First, we want to +# maintain the original x position across repeated operations, even though +# some lines that will get passed through don't have enough characters to +# cover the original column. Second, don't try to scroll past the +# beginning or end of the text. # # Arguments: # w - The text window in which the cursor is to move. -# n - The number of lines to move: -1 for up one line, +# n - The number of display lines to move: -1 for up one line, # +1 for down one line. proc ::tk::TextUpDownLine {w n} { variable ::tk::Priv set i [$w index insert] - scan $i "%d.%d" line char if {$Priv(prevPos) ne $i} { - set Priv(char) $char + set Priv(textPosOrig) $i } - set new [$w index [expr {$line + $n}].$Priv(char)] - if {[$w compare $new == end] || [$w compare $new == "insert linestart"]} { + set lines [$w count -displaylines $Priv(textPosOrig) $i] + set new [$w index \ + "$Priv(textPosOrig) + [expr {$lines + $n}] displaylines"] + if {[$w compare $new == end] \ + || [$w compare $new == "insert display linestart"]} { set new $i } set Priv(prevPos) $new @@ -874,13 +931,13 @@ proc ::tk::TextUpDownLine {w n} { proc ::tk::TextPrevPara {w pos} { set pos [$w index "$pos linestart"] while {1} { - if {([$w get "$pos - 1 line"] eq "\n" \ - && [$w get $pos] ne "\n") || $pos eq "1.0"} { - if {[regexp -indices {^[ ]+(.)} [$w get $pos "$pos lineend"] \ - dummy index]} { + if {([$w get "$pos - 1 line"] eq "\n" && ([$w get $pos] ne "\n")) \ + || $pos eq "1.0"} { + if {[regexp -indices -- {^[ \t]+(.)} \ + [$w get $pos "$pos lineend"] -> index]} { set pos [$w index "$pos + [lindex $index 0] chars"] } - if {[$w compare $pos != insert] || [lindex [split $pos .] 0] == 1} { + if {[$w compare $pos != insert] || [lindex [split $pos .] 0]==1} { return $pos } } @@ -911,8 +968,8 @@ proc ::tk::TextNextPara {w start} { return [$w index "end - 1c"] } } - if {[regexp -indices {^[ ]+(.)} [$w get $pos "$pos lineend"] \ - dummy index]} { + if {[regexp -indices -- {^[ \t]+(.)} \ + [$w get $pos "$pos lineend"] -> index]} { return [$w index "$pos + [lindex $index 0] chars"] } return $pos @@ -1013,9 +1070,8 @@ proc ::tk_textCut w { proc ::tk_textPaste w { global tcl_platform if {![catch {::tk::GetSelection $w CLIPBOARD} sel]} { - # ensure this is seen as an atomic op to undo set oldSeparator [$w cget -autoseparators] - if { $oldSeparator } { + if {$oldSeparator} { $w configure -autoseparators 0 $w edit separator } @@ -1023,7 +1079,7 @@ proc ::tk_textPaste w { catch { $w delete sel.first sel.last } } $w insert insert $sel - if { $oldSeparator } { + if {$oldSeparator} { $w edit separator $w configure -autoseparators 1 } @@ -1043,7 +1099,7 @@ proc ::tk_textPaste w { if {$tcl_platform(platform) eq "windows"} { proc ::tk::TextNextWord {w start} { TextNextPos $w [TextNextPos $w $start tcl_endOfWord] \ - tcl_startOfNextWord + tcl_startOfNextWord } } else { proc ::tk::TextNextWord {w start} { @@ -1064,16 +1120,10 @@ proc ::tk::TextNextPos {w start op} { set text "" set cur $start while {[$w compare $cur < end]} { - set text $text[$w get $cur "$cur lineend + 1c"] + set text $text[$w get -displaychars $cur "$cur lineend + 1c"] set pos [$op $text 0] if {$pos >= 0} { - ## Adjust for embedded windows and images - ## dump gives us 3 items per window/image - set dump [$w dump -image -window $start "$start + $pos c"] - if {[llength $dump]} { - set pos [expr {$pos + ([llength $dump]/3)}] - } - return [$w index "$start + $pos c"] + return [$w index "$start + $pos display chars"] } set cur [$w index "$cur lineend +1c"] } @@ -1093,22 +1143,10 @@ proc ::tk::TextPrevPos {w start op} { set text "" set cur $start while {[$w compare $cur > 0.0]} { - set text [$w get "$cur linestart - 1c" $cur]$text + set text [$w get -displaychars "$cur linestart - 1c" $cur]$text set pos [$op $text end] if {$pos >= 0} { - ## Adjust for embedded windows and images - ## dump gives us 3 items per window/image - set dump [$w dump -image -window "$cur linestart" "$start - 1c"] - if {[llength $dump]} { - ## This is a hokey extra hack for control-arrow movement - ## that should be in a while loop to be correct (hobbs) - if {[$w compare [lindex $dump 2] > \ - "$cur linestart - 1c + $pos c"]} { - incr pos -1 - } - set pos [expr {$pos + ([llength $dump]/3)}] - } - return [$w index "$cur linestart - 1c + $pos c"] + return [$w index "$cur linestart - 1c + $pos display chars"] } set cur [$w index "$cur linestart - 1c"] } @@ -1125,10 +1163,11 @@ proc ::tk::TextPrevPos {w start op} { # y - y location on screen proc ::tk::TextScanMark {w x y} { + variable ::tk::Priv $w scan mark $x $y - set ::tk::Priv(x) $x - set ::tk::Priv(y) $y - set ::tk::Priv(mouseMoved) 0 + set Priv(x) $x + set Priv(y) $y + set Priv(mouseMoved) 0 } # ::tk::TextScanDrag -- @@ -1141,14 +1180,19 @@ proc ::tk::TextScanMark {w x y} { # y - y location on screen proc ::tk::TextScanDrag {w x y} { + variable ::tk::Priv # Make sure these exist, as some weird situations can trigger the # motion binding without the initial press. [Bug #220269] - if {![info exists ::tk::Priv(x)]} { set ::tk::Priv(x) $x } - if {![info exists ::tk::Priv(y)]} { set ::tk::Priv(y) $y } - if {($x != $::tk::Priv(x)) || ($y != $::tk::Priv(y))} { - set ::tk::Priv(mouseMoved) 1 + if {![info exists Priv(x)]} { + set Priv(x) $x + } + if {![info exists Priv(y)]} { + set Priv(y) $y + } + if {($x != $Priv(x)) || ($y != $Priv(y))} { + set Priv(mouseMoved) 1 } - if {[info exists ::tk::Priv(mouseMoved)] && $::tk::Priv(mouseMoved)} { + if {[info exists Priv(mouseMoved)] && $Priv(mouseMoved)} { $w scan dragto $x $y } } |