home *** CD-ROM | disk | FTP | other *** search
- #
- # dragdrop.tcl
- #
- # ----------------------------------------------------------------------
- # Bindings for the BLT drag&drop command
- # ----------------------------------------------------------------------
- # AUTHOR: George Howlett
- # Bell Labs Innovations for Lucent Technologies
- # gah@bell-labs.com
- # http://www.tcltk.com/blt
- # ----------------------------------------------------------------------
- # Copyright (c) 1998 Lucent Technologies, Inc.
- # ======================================================================
- #
- # Permission to use, copy, modify, and distribute this software and its
- # documentation for any purpose and without fee is hereby granted,
- # provided that the above copyright notice appear in all copies and that
- # both that the copyright notice and warranty disclaimer appear in
- # supporting documentation, and that the names of Lucent Technologies
- # any of their entities not be used in advertising or publicity
- # pertaining to distribution of the software without specific, written
- # prior permission.
- #
- # Lucent Technologies disclaims all warranties with regard to this
- # software, including all implied warranties of merchantability and
- # fitness. In no event shall Lucent be liable for any special, indirect
- # or consequential damages or any damages whatsoever resulting from loss
- # of use, data or profits, whether in an action of contract, negligence
- # or other tortuous action, arising out of or in connection with the use
- # or performance of this software.
- #
- # ======================================================================
-
- if { $tcl_version >= 8.0 } {
- set cmd blt::drag&drop
- } else {
- set cmd drag&drop
- }
- for { set i 1 } { $i <= 5 } { incr i } {
- bind BltDrag&DropButton$i <ButtonPress-$i> [list $cmd drag %W %X %Y]
- bind BltDrag&DropButton$i <B$i-Motion> [list $cmd drag %W %X %Y]
- bind BltDrag&DropButton$i <ButtonRelease-$i> [list $cmd drop %W %X %Y]
- }
-
- # ----------------------------------------------------------------------
- #
- # Drag&DropInit --
- #
- # Invoked from C whenever a new drag&drop source is created.
- # Sets up the default bindings for the drag&drop source.
- #
- # <ButtonPress-?> Starts the drag operation.
- # <B?-Motion> Updates the drag.
- # <ButtonRelease-?> Drop the data on the target.
- #
- # Arguments:
- # widget source widget
- # button Mouse button used to activate drag.
- # cmd "dragdrop" or "blt::dragdrop"
- #
- # ----------------------------------------------------------------------
-
- proc blt::Drag&DropInit { widget button } {
- set tagList {}
- if { $button > 0 } {
- lappend tagList BltDrag&DropButton$button
- }
- foreach tag [bindtags $widget] {
- if { ![string match BltDrag&DropButton* $tag] } {
- lappend tagList $tag
- }
- }
- bindtags $widget $tagList
- }
-
-