projects / micropolis / blame
| Commit | Line | Data |
|---|---|---|
| 6a5fa4e0 MG |
1 | # button.tcl -- |
| 2 | # | |
| 3 | # This file contains Tcl procedures used to manage Tk buttons. | |
| 4 | # | |
| 5 | # $Header: /user6/ouster/wish/scripts/RCS/button.tcl,v 1.7 92/07/28 15:41:13 ouster Exp $ SPRITE (Berkeley) | |
| 6 | # | |
| 7 | # Copyright 1992 Regents of the University of California | |
| 8 | # Permission to use, copy, modify, and distribute this | |
| 9 | # software and its documentation for any purpose and without | |
| 10 | # fee is hereby granted, provided that this copyright | |
| 11 | # notice appears in all copies. The University of California | |
| 12 | # makes no representations about the suitability of this | |
| 13 | # software for any purpose. It is provided "as is" without | |
| 14 | # express or implied warranty. | |
| 15 | # | |
| 16 | ||
| 17 | # The procedure below is invoked when the mouse pointer enters a | |
| 18 | # button widget. It records the button we're in and changes the | |
| 19 | # state of the button to active unless the button is disabled. | |
| 20 | ||
| 21 | proc tk_butEnter w { | |
| 22 | global tk_priv tk_strictMotif | |
| 23 | if {[lindex [$w config -state] 4] != "disabled"} { | |
| 24 | if {!$tk_strictMotif} { | |
| 25 | $w config -state active | |
| 26 | } | |
| 27 | set tk_priv(window) $w | |
| 28 | } | |
| 29 | } | |
| 30 | ||
| 31 | # The procedure below is invoked when the mouse pointer leaves a | |
| 32 | # button widget. It changes the state of the button back to | |
| 33 | # inactive. | |
| 34 | ||
| 35 | proc tk_butLeave w { | |
| 36 | global tk_priv tk_strictMotif | |
| 37 | if {[lindex [$w config -state] 4] != "disabled"} { | |
| 38 | if {!$tk_strictMotif} { | |
| 39 | $w config -state normal | |
| 40 | } | |
| 41 | } | |
| 42 | set tk_priv(window) "" | |
| 43 | } | |
| 44 | ||
| 45 | # The procedure below is invoked when the mouse button is pressed in | |
| 46 | # a button/radiobutton/checkbutton widget. It records information | |
| 47 | # (a) to indicate that the mouse is in the button, and | |
| 48 | # (b) to save the button's relief so it can be restored later. | |
| 49 | ||
| 50 | proc tk_butDown w { | |
| 51 | global tk_priv | |
| 52 | set tk_priv(relief) [lindex [$w config -relief] 4] | |
| 53 | if {[lindex [$w config -state] 4] != "disabled"} { | |
| 54 | $w config -relief sunken | |
| 55 | } | |
| 56 | } | |
| 57 | ||
| 58 | # The procedure below is invoked when the mouse button is released | |
| 59 | # for a button/radiobutton/checkbutton widget. It restores the | |
| 60 | # button's relief and invokes the command as long as the mouse | |
| 61 | # hasn't left the button. | |
| 62 | ||
| 63 | proc tk_butUp w { | |
| 64 | global tk_priv | |
| 65 | $w config -relief $tk_priv(relief) | |
| 66 | if {($w == $tk_priv(window)) | |
| 67 | && ([lindex [$w config -state] 4] != "disabled")} { | |
| 68 | uplevel #0 [list $w invoke] | |
| 69 | } | |
| 70 | } |