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-rw-r--r--library/button.tcl266
1 files changed, 131 insertions, 135 deletions
diff --git a/library/button.tcl b/library/button.tcl
index ef14f71..55937e2 100644
--- a/library/button.tcl
+++ b/library/button.tcl
@@ -4,10 +4,11 @@
# checkbutton, and radiobutton widgets and provides procedures
# that help in implementing those bindings.
#
-# RCS: @(#) $Id: button.tcl,v 1.13 2002/04/23 00:48:29 hobbs Exp $
+# RCS: @(#) $Id: button.tcl,v 1.14 2002/08/13 20:53:35 hobbs Exp $
#
# Copyright (c) 1992-1994 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
+# Copyright (c) 2002 ActiveState Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -17,7 +18,7 @@
# The code below creates the default class bindings for buttons.
#-------------------------------------------------------------------------
-if {[string match "macintosh" $tcl_platform(platform)]} {
+if {[string equal "macintosh" $tcl_platform(platform)]} {
bind Radiobutton <Enter> {
tk::ButtonEnter %W
}
@@ -37,7 +38,7 @@ if {[string match "macintosh" $tcl_platform(platform)]} {
tk::ButtonUp %W
}
}
-if {[string match "windows" $tcl_platform(platform)]} {
+if {[string equal "windows" $tcl_platform(platform)]} {
bind Checkbutton <equal> {
tk::CheckRadioInvoke %W select
}
@@ -67,7 +68,7 @@ if {[string match "windows" $tcl_platform(platform)]} {
tk::CheckRadioEnter %W
}
}
-if {[string match "unix" $tcl_platform(platform)]} {
+if {[string equal "unix" $tcl_platform(platform)]} {
bind Checkbutton <Return> {
if {!$tk_strictMotif} {
tk::CheckRadioInvoke %W
@@ -126,7 +127,7 @@ bind Radiobutton <Leave> {
tk::ButtonLeave %W
}
-if {[string match "windows" $tcl_platform(platform)]} {
+if {[string equal "windows" $tcl_platform(platform)]} {
#########################
# Windows implementation
@@ -142,15 +143,15 @@ if {[string match "windows" $tcl_platform(platform)]} {
proc ::tk::ButtonEnter w {
variable ::tk::Priv
- if {[string compare [$w cget -state] "disabled"] } {
+ if {[$w cget -state] ne "disabled"} {
# If the mouse button is down, set the relief to sunken on entry.
# Overwise, if there's an -overrelief value, set the relief to that.
- if {[string equal $Priv(buttonWindow) $w]} {
- $w configure -state active -relief sunken
+ set Priv($w,relief) [$w cget -relief]
+ if {$Priv(buttonWindow) eq $w} {
+ $w configure -relief sunken -state active
} elseif {[$w cget -overrelief] ne ""} {
- set Priv(relief) [$w cget -relief]
$w configure -relief [$w cget -overrelief]
}
}
@@ -159,54 +160,29 @@ proc ::tk::ButtonEnter w {
# ::tk::ButtonLeave --
# The procedure below is invoked when the mouse pointer leaves a
-# button widget. It changes the state of the button back to
-# inactive. If we're leaving the button window with a mouse button
-# pressed (Priv(buttonWindow) == $w), restore the relief of the
-# button too.
+# button widget. It changes the state of the button back to inactive.
+# Restore any modified relief too.
#
# Arguments:
# w - The name of the widget.
proc ::tk::ButtonLeave w {
variable ::tk::Priv
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] ne "disabled"} {
$w configure -state normal
}
- # Restore the original button relief if the mouse button is down
- # or there is an -overrelief value.
+ # Restore the original button relief if it was changed.
+ # That is signaled by the existence of Priv($w,relief).
- if {[info exists Priv(relief)] && (($Priv(buttonWindow) eq $w) || \
- ([$w cget -overrelief] ne ""))} {
- $w configure -relief $Priv(relief)
+ if {[info exists Priv($w,relief)]} {
+ $w configure -relief $Priv($w,relief)
+ unset Priv($w,relief)
}
set Priv(window) ""
}
-# ::tk::CheckRadioEnter --
-# The procedure below is invoked when the mouse pointer enters a
-# checkbutton or radiobutton widget. It records the button we're in
-# and changes the state of the button to active unless the button is
-# disabled.
-#
-# Arguments:
-# w - The name of the widget.
-
-proc ::tk::CheckRadioEnter w {
- variable ::tk::Priv
- if {[string compare [$w cget -state] "disabled"]} {
- if {[string equal $Priv(buttonWindow) $w]} {
- $w configure -state active
- }
- if { [string compare [$w cget -overrelief] ""] } {
- set Priv(relief) [$w cget -relief]
- $w configure -relief [$w cget -overrelief]
- }
- }
- set Priv(window) $w
-}
-
# ::tk::ButtonDown --
# The procedure below is invoked when the mouse button is pressed in
# a button widget. It records the fact that the mouse is in the button,
@@ -218,15 +194,16 @@ proc ::tk::CheckRadioEnter w {
proc ::tk::ButtonDown w {
variable ::tk::Priv
- # Only save the button's relief if it has no -overrelief value. If there
- # is an overrelief setting, Priv(relief) will already have been set, and
- # the current value of the -relief option will be incorrect.
- if { [string equal [$w cget -overrelief] ""] } {
- set Priv(relief) [$w cget -relief]
+ # Only save the button's relief if it does not yet exist. If there
+ # is an overrelief setting, Priv($w,relief) will already have been set,
+ # and the current value of the -relief option will be incorrect.
+
+ if {![info exists Priv($w,relief)]} {
+ set Priv($w,relief) [$w cget -relief]
}
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] ne "disabled"} {
set Priv(buttonWindow) $w
$w configure -relief sunken -state active
@@ -240,27 +217,6 @@ proc ::tk::ButtonDown w {
}
}
-# ::tk::CheckRadioDown --
-# The procedure below is invoked when the mouse button is pressed in
-# a button widget. It records the fact that the mouse is in the button,
-# saves the button's relief so it can be restored later, and changes
-# the relief to sunken.
-#
-# Arguments:
-# w - The name of the widget.
-
-proc ::tk::CheckRadioDown w {
- variable ::tk::Priv
- if { [string equal [$w cget -overrelief] ""] } {
- set Priv(relief) [$w cget -relief]
- }
- if {[string compare [$w cget -state] "disabled"]} {
- set Priv(buttonWindow) $w
- set Priv(repeated) 0
- $w configure -state active
- }
-}
-
# ::tk::ButtonUp --
# The procedure below is invoked when the mouse button is released
# in a button widget. It restores the button's relief and invokes
@@ -271,25 +227,20 @@ proc ::tk::CheckRadioDown w {
proc ::tk::ButtonUp w {
variable ::tk::Priv
- if {[string equal $Priv(buttonWindow) $w]} {
+ if {$Priv(buttonWindow) eq $w} {
set Priv(buttonWindow) ""
- # Restore the button's relief. If there is no overrelief, the
- # button relief goes back to its original value. If there is an
- # overrelief, the relief goes to the overrelief (since the cursor is
- # still over the button).
-
- set relief [$w cget -overrelief]
- if { [string equal $relief ""] } {
- set relief $Priv(relief)
+
+ # Restore the button's relief if it was cached.
+
+ if {[info exists Priv($w,relief)]} {
+ $w configure -relief $Priv($w,relief)
+ unset Priv($w,relief)
}
- $w configure -relief $relief
# Clean up the after event from the auto-repeater
-
after cancel $Priv(afterId)
- if {[string equal $Priv(window) $w]
- && [string compare [$w cget -state] "disabled"]} {
+ if {$Priv(window) eq $w && [$w cget -state] ne "disabled"} {
$w configure -state normal
# Only invoke the command if it wasn't already invoked by the
@@ -301,9 +252,53 @@ proc ::tk::ButtonUp w {
}
}
+# ::tk::CheckRadioEnter --
+# The procedure below is invoked when the mouse pointer enters a
+# checkbutton or radiobutton widget. It records the button we're in
+# and changes the state of the button to active unless the button is
+# disabled.
+#
+# Arguments:
+# w - The name of the widget.
+
+proc ::tk::CheckRadioEnter w {
+ variable ::tk::Priv
+ if {[$w cget -state] ne "disabled"} {
+ if {$Priv(buttonWindow) eq $w} {
+ $w configure -state active
+ }
+ if {[$w cget -overrelief] ne ""} {
+ set Priv($w,relief) [$w cget -relief]
+ $w configure -relief [$w cget -overrelief]
+ }
+ }
+ set Priv(window) $w
+}
+
+# ::tk::CheckRadioDown --
+# The procedure below is invoked when the mouse button is pressed in
+# a button widget. It records the fact that the mouse is in the button,
+# saves the button's relief so it can be restored later, and changes
+# the relief to sunken.
+#
+# Arguments:
+# w - The name of the widget.
+
+proc ::tk::CheckRadioDown w {
+ variable ::tk::Priv
+ if {![info exists Priv($w,relief)]} {
+ set Priv($w,relief) [$w cget -relief]
+ }
+ if {[$w cget -state] ne "disabled"} {
+ set Priv(buttonWindow) $w
+ set Priv(repeated) 0
+ $w configure -state active
+ }
}
-if {[string match "unix" $tcl_platform(platform)]} {
+}
+
+if {[string equal "unix" $tcl_platform(platform)]} {
#####################
# Unix implementation
@@ -319,45 +314,43 @@ if {[string match "unix" $tcl_platform(platform)]} {
proc ::tk::ButtonEnter {w} {
variable ::tk::Priv
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] ne "disabled"} {
+ # On unix the state is active just with mouse-over
$w configure -state active
# If the mouse button is down, set the relief to sunken on entry.
# Overwise, if there's an -overrelief value, set the relief to that.
- if {[string equal $Priv(buttonWindow) $w]} {
- $w configure -state active -relief sunken
+ set Priv($w,relief) [$w cget -relief]
+ if {$Priv(buttonWindow) eq $w} {
+ $w configure -relief sunken
} elseif {[$w cget -overrelief] ne ""} {
- set Priv(relief) [$w cget -relief]
$w configure -relief [$w cget -overrelief]
}
}
-
set Priv(window) $w
}
# ::tk::ButtonLeave --
# The procedure below is invoked when the mouse pointer leaves a
-# button widget. It changes the state of the button back to
-# inactive. If we're leaving the button window with a mouse button
-# pressed (Priv(buttonWindow) == $w), restore the relief of the
-# button too.
+# button widget. It changes the state of the button back to inactive.
+# Restore any modified relief too.
#
# Arguments:
# w - The name of the widget.
proc ::tk::ButtonLeave w {
variable ::tk::Priv
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] eq "disabled"} {
$w configure -state normal
}
- # Restore the original button relief if the mouse button is down
- # or there is an -overrelief value.
+ # Restore the original button relief if it was changed.
+ # That is signaled by the existence of Priv($w,relief).
- if {[info exists Priv(relief)] && (($Priv(buttonWindow) eq $w) || \
- ([$w cget -overrelief] ne ""))} {
- $w configure -relief $Priv(relief)
+ if {[info exists Priv($w,relief)]} {
+ $w configure -relief $Priv($w,relief)
+ unset Priv($w,relief)
}
set Priv(window) ""
@@ -375,15 +368,15 @@ proc ::tk::ButtonLeave w {
proc ::tk::ButtonDown w {
variable ::tk::Priv
- # Only save the button's relief if it has no -overrelief value. If there
- # is an overrelief setting, Priv(relief) will already have been set, and
- # the current value of the -relief option will be incorrect.
+ # Only save the button's relief if it does not yet exist. If there
+ # is an overrelief setting, Priv($w,relief) will already have been set,
+ # and the current value of the -relief option will be incorrect.
- if { [string equal [$w cget -overrelief] ""] } {
- set Priv(relief) [$w cget -relief]
+ if {![info exists Priv($w,relief)]} {
+ set Priv($w,relief) [$w cget -relief]
}
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] ne "disabled"} {
set Priv(buttonWindow) $w
$w configure -relief sunken
@@ -410,23 +403,17 @@ proc ::tk::ButtonUp w {
if {[string equal $w $Priv(buttonWindow)]} {
set Priv(buttonWindow) ""
- # Restore the button's relief. If there is no overrelief, the
- # button relief goes back to its original value. If there is an
- # overrelief, the relief goes to the overrelief (since the cursor is
- # still over the button).
+ # Restore the button's relief if it was cached.
- set relief [$w cget -overrelief]
- if { [string equal $relief ""] } {
- set relief $Priv(relief)
+ if {[info exists Priv($w,relief)]} {
+ $w configure -relief $Priv($w,relief)
+ unset Priv($w,relief)
}
- $w configure -relief $relief
# Clean up the after event from the auto-repeater
after cancel $Priv(afterId)
- if {[string equal $w $Priv(window)] \
- && [string compare [$w cget -state] "disabled"]} {
-
+ if {$Priv(window) eq $w && [$w cget -state] ne "disabled"} {
# Only invoke the command if it wasn't already invoked by the
# auto-repeater functionality
if { $Priv(repeated) == 0 } {
@@ -438,7 +425,7 @@ proc ::tk::ButtonUp w {
}
-if {[string match "macintosh" $tcl_platform(platform)]} {
+if {[string equal "macintosh" $tcl_platform(platform)]} {
####################
# Mac implementation
@@ -454,11 +441,14 @@ if {[string match "macintosh" $tcl_platform(platform)]} {
proc ::tk::ButtonEnter {w} {
variable ::tk::Priv
- if {[string compare [$w cget -state] "disabled"]} {
- if {[string equal $w $Priv(buttonWindow)]} {
+ if {[$w cget -state] ne "disabled"} {
+
+ # If there's an -overrelief value, set the relief to that.
+
+ if {$Priv(buttonWindow) eq $w} {
$w configure -state active
} elseif {[$w cget -overrelief] ne ""} {
- set Priv(relief) [$w cget -relief]
+ set Priv($w,relief) [$w cget -relief]
$w configure -relief [$w cget -overrelief]
}
}
@@ -477,13 +467,18 @@ proc ::tk::ButtonEnter {w} {
proc ::tk::ButtonLeave w {
variable ::tk::Priv
- if {[string equal $w $Priv(buttonWindow)]} {
+ if {$w eq $Priv(buttonWindow)} {
$w configure -state normal
}
- if {[info exists Priv(relief)] && (($Priv(buttonWindow) eq $w) || \
- ([$w cget -overrelief] ne ""))} {
- $w configure -relief $Priv(relief)
+
+ # Restore the original button relief if it was changed.
+ # That is signaled by the existence of Priv($w,relief).
+
+ if {[info exists Priv($w,relief)]} {
+ $w configure -relief $Priv($w,relief)
+ unset Priv($w,relief)
}
+
set Priv(window) ""
}
@@ -499,13 +494,13 @@ proc ::tk::ButtonLeave w {
proc ::tk::ButtonDown w {
variable ::tk::Priv
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] ne "disabled"} {
set Priv(buttonWindow) $w
$w configure -state active
# If this button has a repeatdelay set up, get it going with an after
after cancel $Priv(afterId)
- set Priv(repeated) 0
+ set Priv(repeated) 0
if { ![catch {$w cget -repeatdelay} delay] } {
if {$delay > 0} {
set Priv(afterId) [after $delay [list tk::ButtonAutoInvoke $w]]
@@ -524,19 +519,21 @@ proc ::tk::ButtonDown w {
proc ::tk::ButtonUp w {
variable ::tk::Priv
- if {[string equal $w $Priv(buttonWindow)]} {
- $w configure -state normal
+ if {$Priv(buttonWindow) eq $w} {
set Priv(buttonWindow) ""
+ $w configure -state normal
- if { [string compare [$w cget -overrelief] ""] } {
- $w configure -relief [$w cget -overrelief]
+ # Restore the button's relief if it was cached.
+
+ if {[info exists Priv($w,relief)]} {
+ $w configure -relief $Priv($w,relief)
+ unset Priv($w,relief)
}
# Clean up the after event from the auto-repeater
after cancel $Priv(afterId)
- if {[string equal $w $Priv(window)]
- && [string compare [$w cget -state] "disabled"]} {
+ if {$Priv(window) eq $w && [$w cget -state] ne "disabled"} {
# Only invoke the command if it wasn't already invoked by the
# auto-repeater functionality
if { $Priv(repeated) == 0 } {
@@ -560,7 +557,7 @@ proc ::tk::ButtonUp w {
# w - The name of the widget.
proc ::tk::ButtonInvoke w {
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] ne "disabled"} {
set oldRelief [$w cget -relief]
set oldState [$w cget -state]
$w configure -state active -relief sunken
@@ -588,7 +585,7 @@ proc ::tk::ButtonAutoInvoke {w} {
variable ::tk::Priv
after cancel $Priv(afterId)
set delay [$w cget -repeatinterval]
- if { [string equal $Priv(window) $w] } {
+ if {$Priv(window) eq $w} {
incr Priv(repeated)
uplevel #0 [list $w invoke]
}
@@ -608,8 +605,7 @@ proc ::tk::ButtonAutoInvoke {w} {
# cmd - The subcommand to invoke (one of invoke, select, or deselect).
proc ::tk::CheckRadioInvoke {w {cmd invoke}} {
- if {[string compare [$w cget -state] "disabled"]} {
+ if {[$w cget -state] ne "disabled"} {
uplevel #0 [list $w $cmd]
}
}
-
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