summaryrefslogtreecommitdiffstats
path: root/library/button.tcl
blob: b017b80a15d8885c3dd538570a2fc5900c645945 (plain)
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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
# button.tcl --
#
# This file defines the default bindings for Tk label, button,
# checkbutton, and radiobutton widgets and provides procedures
# that help in implementing those bindings.
#
# SCCS: @(#) button.tcl 1.22 96/11/14 14:49:11
#
# Copyright (c) 1992-1994 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#

#-------------------------------------------------------------------------
# The code below creates the default class bindings for buttons.
#-------------------------------------------------------------------------

if {$tcl_platform(platform) == "macintosh"} {
    bind Radiobutton <Enter> {
	tkButtonEnter %W
    }
    bind Radiobutton <1> {
	tkButtonDown %W
    }
    bind Radiobutton <ButtonRelease-1> {
	tkButtonUp %W
    }
    bind Checkbutton <Enter> {
	tkButtonEnter %W
    }
    bind Checkbutton <1> {
	tkButtonDown %W
    }
    bind Checkbutton <ButtonRelease-1> {
	tkButtonUp %W
    }
}
if {$tcl_platform(platform) == "windows"} {
    bind Checkbutton <equal> {
	tkCheckRadioInvoke %W select
    }
    bind Checkbutton <plus> {
	tkCheckRadioInvoke %W select
    }
    bind Checkbutton <minus> {
	tkCheckRadioInvoke %W deselect
    }
    bind Checkbutton <1> {
	tkCheckRadioDown %W
    }
    bind Checkbutton <ButtonRelease-1> {
	tkButtonUp %W
    }
    bind Checkbutton <Enter> {
	tkCheckRadioEnter %W
    }

    bind Radiobutton <1> {
	tkCheckRadioDown %W
    }
    bind Radiobutton <ButtonRelease-1> {
	tkButtonUp %W
    }
    bind Radiobutton <Enter> {
	tkCheckRadioEnter %W
    }
}
if {$tcl_platform(platform) == "unix"} {
    bind Checkbutton <Return> {
	if !$tk_strictMotif {
	    tkCheckRadioInvoke %W
	}
    }
    bind Radiobutton <Return> {
	if !$tk_strictMotif {
	    tkCheckRadioInvoke %W
	}
    }
    bind Checkbutton <1> {
	tkCheckRadioInvoke %W
    }
    bind Radiobutton <1> {
	tkCheckRadioInvoke %W
    }
    bind Checkbutton <Enter> {
	tkButtonEnter %W
    }
    bind Radiobutton <Enter> {
	tkButtonEnter %W
    }
}

bind Button <space> {
    tkButtonInvoke %W
}
bind Checkbutton <space> {
    tkCheckRadioInvoke %W
}
bind Radiobutton <space> {
    tkCheckRadioInvoke %W
}

bind Button <FocusIn> {}
bind Button <Enter> {
    tkButtonEnter %W
}
bind Button <Leave> {
    tkButtonLeave %W
}
bind Button <1> {
    tkButtonDown %W
}
bind Button <ButtonRelease-1> {
    tkButtonUp %W
}

bind Checkbutton <FocusIn> {}
bind Checkbutton <Leave> {
    tkButtonLeave %W
}

bind Radiobutton <FocusIn> {}
bind Radiobutton <Leave> {
    tkButtonLeave %W
}

if {$tcl_platform(platform) == "windows"} {

#########################
# Windows implementation 
#########################

# tkButtonEnter --
# The procedure below is invoked when the mouse pointer enters a
# button 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 tkButtonEnter w {
    global tkPriv
    if {[$w cget -state] != "disabled"} {
	if {$tkPriv(buttonWindow) == $w} {
	    $w configure -state active -relief sunken
	}
    }
    set tkPriv(window) $w
}

# tkButtonLeave --
# 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 (tkPriv(buttonWindow) == $w), restore the relief of the
# button too.
#
# Arguments:
# w -		The name of the widget.

proc tkButtonLeave w {
    global tkPriv
    if {[$w cget -state] != "disabled"} {
	$w config -state normal
    }
    if {$w == $tkPriv(buttonWindow)} {
	$w configure -relief $tkPriv(relief)
    }
    set tkPriv(window) ""
}

# tkCheckRadioEnter --
# 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 tkCheckRadioEnter w {
    global tkPriv
    if {[$w cget -state] != "disabled"} {
	if {$tkPriv(buttonWindow) == $w} {
	    $w configure -state active
	}
    }
    set tkPriv(window) $w
}

# tkButtonDown --
# 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 tkButtonDown w {
    global tkPriv
    set tkPriv(relief) [lindex [$w conf -relief] 4]
    if {[$w cget -state] != "disabled"} {
	set tkPriv(buttonWindow) $w
	$w config -relief sunken -state active
    }
}

# tkCheckRadioDown --
# 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 tkCheckRadioDown w {
    global tkPriv
    set tkPriv(relief) [lindex [$w conf -relief] 4]
    if {[$w cget -state] != "disabled"} {
	set tkPriv(buttonWindow) $w
	$w config -state active
    }
}

# tkButtonUp --
# The procedure below is invoked when the mouse button is released
# in a button widget.  It restores the button's relief and invokes
# the command as long as the mouse hasn't left the button.
#
# Arguments:
# w -		The name of the widget.

proc tkButtonUp w {
    global tkPriv
    if {$w == $tkPriv(buttonWindow)} {
	set tkPriv(buttonWindow) ""
	if {($w == $tkPriv(window))
		&& ([$w cget -state] != "disabled")} {
	    $w config -relief $tkPriv(relief) -state normal
	    uplevel #0 [list $w invoke]
	}
    }
}

}

if {$tcl_platform(platform) == "unix"} {

#####################
# Unix implementation
#####################

# tkButtonEnter --
# The procedure below is invoked when the mouse pointer enters a
# button 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 tkButtonEnter {w} {
    global tkPriv
    if {[$w cget -state] != "disabled"} {
	$w config -state active
	if {$tkPriv(buttonWindow) == $w} {
	    $w configure -state active -relief sunken
	}
    }
    set tkPriv(window) $w
}

# tkButtonLeave --
# 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 (tkPriv(buttonWindow) == $w), restore the relief of the
# button too.
#
# Arguments:
# w -		The name of the widget.

proc tkButtonLeave w {
    global tkPriv
    if {[$w cget -state] != "disabled"} {
	$w config -state normal
    }
    if {$w == $tkPriv(buttonWindow)} {
	$w configure -relief $tkPriv(relief)
    }
    set tkPriv(window) ""
}

# tkButtonDown --
# 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 tkButtonDown w {
    global tkPriv
    set tkPriv(relief) [lindex [$w config -relief] 4]
    if {[$w cget -state] != "disabled"} {
	set tkPriv(buttonWindow) $w
	$w config -relief sunken
    }
}

# tkButtonUp --
# The procedure below is invoked when the mouse button is released
# in a button widget.  It restores the button's relief and invokes
# the command as long as the mouse hasn't left the button.
#
# Arguments:
# w -		The name of the widget.

proc tkButtonUp w {
    global tkPriv
    if {$w == $tkPriv(buttonWindow)} {
	set tkPriv(buttonWindow) ""
	$w config -relief $tkPriv(relief)
	if {($w == $tkPriv(window))
		&& ([$w cget -state] != "disabled")} {
	    uplevel #0 [list $w invoke]
	}
    }
}

}

if {$tcl_platform(platform) == "macintosh"} {

####################
# Mac implementation
####################

# tkButtonEnter --
# The procedure below is invoked when the mouse pointer enters a
# button 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 tkButtonEnter {w} {
    global tkPriv
    if {[$w cget -state] != "disabled"} {
	if {$tkPriv(buttonWindow) == $w} {
	    $w configure -state active
	}
    }
    set tkPriv(window) $w
}

# tkButtonLeave --
# 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 (tkPriv(buttonWindow) == $w), restore the relief of the
# button too.
#
# Arguments:
# w -		The name of the widget.

proc tkButtonLeave w {
    global tkPriv
    if {$w == $tkPriv(buttonWindow)} {
	$w configure -state normal
    }
    set tkPriv(window) ""
}

# tkButtonDown --
# 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 tkButtonDown w {
    global tkPriv
    if {[$w cget -state] != "disabled"} {
	set tkPriv(buttonWindow) $w
	$w config -state active
    }
}

# tkButtonUp --
# The procedure below is invoked when the mouse button is released
# in a button widget.  It restores the button's relief and invokes
# the command as long as the mouse hasn't left the button.
#
# Arguments:
# w -		The name of the widget.

proc tkButtonUp w {
    global tkPriv
    if {$w == $tkPriv(buttonWindow)} {
	$w config -state normal
	set tkPriv(buttonWindow) ""
	if {($w == $tkPriv(window))
		&& ([$w cget -state] != "disabled")} {
	    uplevel #0 [list $w invoke]
	}
    }
}

}

##################
# Shared routines
##################

# tkButtonInvoke --
# The procedure below is called when a button is invoked through
# the keyboard.  It simulate a press of the button via the mouse.
#
# Arguments:
# w -		The name of the widget.

proc tkButtonInvoke w {
    if {[$w cget -state] != "disabled"} {
	set oldRelief [$w cget -relief]
	set oldState [$w cget -state]
	$w configure -state active -relief sunken
	update idletasks
	after 100
	$w configure -state $oldState -relief $oldRelief
	uplevel #0 [list $w invoke]
    }
}

# tkCheckRadioInvoke --
# The procedure below is invoked when the mouse button is pressed in
# a checkbutton or radiobutton widget, or when the widget is invoked
# through the keyboard.  It invokes the widget if it
# isn't disabled.
#
# Arguments:
# w -		The name of the widget.
# cmd -		The subcommand to invoke (one of invoke, select, or deselect).

proc tkCheckRadioInvoke {w {cmd invoke}} {
    if {[$w cget -state] != "disabled"} {
	uplevel #0 [list $w $cmd]
    }
}