File size: 4,500 Bytes
ef99749
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
#	$Id: HListDD.tcl,v 1.3 2001/12/09 05:04:02 idiscovery Exp $
#
# HListDD.tcl --
#
#	!!! PRE-ALPHA CODE, NOT USED, DON'T USE !!!
#
#	This file implements drag+drop for HList.
#
# Copyright (c) 1993-1999 Ioi Kim Lam.
# Copyright (c) 2000-2001 Tix Project Group.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#

#
# events
#
#

proc tixHListSingle:DragTimer {w ent} {
    case [tixHListSingle:GetState $w] {
	{1} {
	    # fire up
	}
    }
}





#----------------------------------------------------------------------
#
#		    Drag + Drop Bindings
#
#----------------------------------------------------------------------

	     #----------------------------------------#
	     #	          Sending Actions	      #
	     #----------------------------------------#

#----------------------------------------------------------------------
#  tixHListSingle:Send:WaitDrag --
#
#	Sender wait for dragging action
#----------------------------------------------------------------------
proc tixHListSingle:Send:WaitDrag {w x y} {
    global tixPriv

    set ent [tixHListSingle:GetNearest $w $y]
    if {$ent != ""} {
	$w anchor set $ent
	$w select clear
	$w select set $ent
 
	set tixPriv(dd,$w:moved) 0
	set tixPriv(dd,$w:entry) $ent

#	set browsecmd [$w cget -browsecmd]
#	if {$browsecmd != "" && $ent != ""} {
#	    eval $browsecmd $ent
#	}
    }
}

proc tixHListSingle:Send:StartDrag {w x y} {
    global tixPriv
    set dd [tixGetDragDropContext $w]

    if {![info exists tixPriv(dd,$w:entry)]} {
	return
    }
    if {$tixPriv(dd,$w:entry) == ""} {
	return
    }

    if {$tixPriv(dd,$w:moved) == 0} {
	$w dragsite set $tixPriv(dd,$w:entry)
	set tixPriv(dd,$w:moved) 1
	$dd config -source $w -command [list tixHListSingle:Send:Cmd $w]
	$dd startdrag $X $Y
    } else {
	$dd drag $X $Y
    }
}

proc tixHListSingle:Send:DoneDrag {w x y} {
    global tixPriv
    global moved

    if {![info exists tixPriv(dd,$w:entry)]} {
	return
    }
    if {$tixPriv(dd,$w:entry) == ""} {
	return
    }

    if {$tixPriv(dd,$w:moved) == 1} {
	set dd [tixGetDragDropContext $w]
	$dd drop $X $Y
    }
    $w dragsite clear
    catch {unset tixPriv(dd,$w:moved)}
    catch {unset tixPriv(dd,$w:entry)}
}

proc tixHListSingle:Send:Cmd {w option args} {
    set dragCmd [$w cget -dragcmd]
    if {$dragCmd != ""} {
	return [eval $dragCmd $option $args]
    }

    # Perform the default action
    #
    case "$option" {
	who {
	    return $w
	}
	types {
	    return {data text}
	}
	get {
	    global tixPriv
	    if {[lindex $args 0] == "text"} {
		if {$tixPriv(dd,$w:entry) != ""} {
		    return [$w entrycget $tixPriv(dd,$w:entry) -text]
		}
	    }
	    if {[lindex $args 0] == "data"} {
		if {$tixPriv(dd,$w:entry) != ""} {
		    return [$w entrycget $tixPriv(dd,$w:entry) -data]
		}
	    }
	}
    }
}

	     #----------------------------------------#
	     #	          Receiving Actions	      #
	     #----------------------------------------#
proc tixHListSingle:Rec:DragOver {w sender x y} {
    if {[$w cget -selectmode] != "dragdrop"} {
	return
    }

    set ent [tixHListSingle:GetNearest $w $y]
    if {$ent != ""} {
	$w dropsite set $ent
    } else {
	$w dropsite clear
    }
}

proc tixHListSingle:Rec:DragIn {w sender x y} {
    if {[$w cget -selectmode] != "dragdrop"} {
	return
    }
    set ent [tixHListSingle:GetNearest $w $y]
    if {$ent != ""} {
	$w dropsite set $ent
    } else {
	$w dropsite clear
    }
}

proc tixHListSingle:Rec:DragOut {w sender x y} {
    if {[$w cget -selectmode] != "dragdrop"} {
	return
    }
    $w dropsite clear
}

proc tixHListSingle:Rec:Drop {w sender x y} {
    if {[$w cget -selectmode] != "dragdrop"} {
	return
    }
    $w dropsite clear

    set ent [tixHListSingle:GetNearest $w $y]
    if {$ent != ""} {
	$w anchor set $ent
	$w select clear
	$w select set $ent
    }
 
    set dropCmd [$w cget -dropcmd]
    if {$dropCmd != ""} {
	eval $dropCmd $sender $x $y
	return
    }

#    set browsecmd [$w cget -browsecmd]
#    if {$browsecmd != "" && $ent != ""} {
#	eval $browsecmd [list $ent]
#    }
}

tixDropBind TixHListSingle <In>   "tixHListSingle:Rec:DragIn %W %S %x %y"
tixDropBind TixHListSingle <Over> "tixHListSingle:Rec:DragOver %W %S %x %y"
tixDropBind TixHListSingle <Out>  "tixHListSingle:Rec:DragOut %W %S %x %y"
tixDropBind TixHListSingle <Drop> "tixHListSingle:Rec:Drop %W %S %x %y"