[37] | 1 | # button.tcl -- |
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| 2 | # |
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| 3 | # This file defines the default bindings for Tk label, button, |
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| 4 | # checkbutton, and radiobutton widgets and provides procedures |
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| 5 | # that help in implementing those bindings. |
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| 6 | # |
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| 7 | # RCS: @(#) $Id: button.tcl,v 1.6 1999/09/02 17:02:52 hobbs Exp $ |
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| 8 | # |
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| 9 | # Copyright (c) 1992-1994 The Regents of the University of California. |
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| 10 | # Copyright (c) 1994-1996 Sun Microsystems, Inc. |
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| 11 | # |
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| 12 | # See the file "license.terms" for information on usage and redistribution |
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| 13 | # of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 14 | # |
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| 15 | |
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| 16 | #------------------------------------------------------------------------- |
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| 17 | # The code below creates the default class bindings for buttons. |
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| 18 | #------------------------------------------------------------------------- |
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| 19 | |
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| 20 | if {[string match "macintosh" $tcl_platform(platform)]} { |
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| 21 | bind Radiobutton <Enter> { |
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| 22 | tkButtonEnter %W |
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| 23 | } |
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| 24 | bind Radiobutton <1> { |
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| 25 | tkButtonDown %W |
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| 26 | } |
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| 27 | bind Radiobutton <ButtonRelease-1> { |
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| 28 | tkButtonUp %W |
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| 29 | } |
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| 30 | bind Checkbutton <Enter> { |
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| 31 | tkButtonEnter %W |
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| 32 | } |
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| 33 | bind Checkbutton <1> { |
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| 34 | tkButtonDown %W |
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| 35 | } |
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| 36 | bind Checkbutton <ButtonRelease-1> { |
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| 37 | tkButtonUp %W |
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| 38 | } |
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| 39 | } |
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| 40 | if {[string match "windows" $tcl_platform(platform)]} { |
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| 41 | bind Checkbutton <equal> { |
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| 42 | tkCheckRadioInvoke %W select |
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| 43 | } |
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| 44 | bind Checkbutton <plus> { |
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| 45 | tkCheckRadioInvoke %W select |
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| 46 | } |
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| 47 | bind Checkbutton <minus> { |
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| 48 | tkCheckRadioInvoke %W deselect |
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| 49 | } |
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| 50 | bind Checkbutton <1> { |
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| 51 | tkCheckRadioDown %W |
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| 52 | } |
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| 53 | bind Checkbutton <ButtonRelease-1> { |
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| 54 | tkButtonUp %W |
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| 55 | } |
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| 56 | bind Checkbutton <Enter> { |
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| 57 | tkCheckRadioEnter %W |
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| 58 | } |
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| 59 | |
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| 60 | bind Radiobutton <1> { |
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| 61 | tkCheckRadioDown %W |
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| 62 | } |
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| 63 | bind Radiobutton <ButtonRelease-1> { |
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| 64 | tkButtonUp %W |
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| 65 | } |
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| 66 | bind Radiobutton <Enter> { |
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| 67 | tkCheckRadioEnter %W |
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| 68 | } |
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| 69 | } |
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| 70 | if {[string match "unix" $tcl_platform(platform)]} { |
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| 71 | bind Checkbutton <Return> { |
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| 72 | if {!$tk_strictMotif} { |
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| 73 | tkCheckRadioInvoke %W |
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| 74 | } |
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| 75 | } |
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| 76 | bind Radiobutton <Return> { |
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| 77 | if {!$tk_strictMotif} { |
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| 78 | tkCheckRadioInvoke %W |
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| 79 | } |
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| 80 | } |
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| 81 | bind Checkbutton <1> { |
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| 82 | tkCheckRadioInvoke %W |
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| 83 | } |
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| 84 | bind Radiobutton <1> { |
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| 85 | tkCheckRadioInvoke %W |
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| 86 | } |
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| 87 | bind Checkbutton <Enter> { |
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| 88 | tkButtonEnter %W |
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| 89 | } |
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| 90 | bind Radiobutton <Enter> { |
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| 91 | tkButtonEnter %W |
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| 92 | } |
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| 93 | } |
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| 94 | |
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| 95 | bind Button <space> { |
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| 96 | tkButtonInvoke %W |
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| 97 | } |
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| 98 | bind Checkbutton <space> { |
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| 99 | tkCheckRadioInvoke %W |
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| 100 | } |
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| 101 | bind Radiobutton <space> { |
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| 102 | tkCheckRadioInvoke %W |
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| 103 | } |
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| 104 | |
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| 105 | bind Button <FocusIn> {} |
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| 106 | bind Button <Enter> { |
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| 107 | tkButtonEnter %W |
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| 108 | } |
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| 109 | bind Button <Leave> { |
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| 110 | tkButtonLeave %W |
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| 111 | } |
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| 112 | bind Button <1> { |
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| 113 | tkButtonDown %W |
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| 114 | } |
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| 115 | bind Button <ButtonRelease-1> { |
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| 116 | tkButtonUp %W |
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| 117 | } |
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| 118 | |
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| 119 | bind Checkbutton <FocusIn> {} |
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| 120 | bind Checkbutton <Leave> { |
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| 121 | tkButtonLeave %W |
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| 122 | } |
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| 123 | |
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| 124 | bind Radiobutton <FocusIn> {} |
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| 125 | bind Radiobutton <Leave> { |
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| 126 | tkButtonLeave %W |
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| 127 | } |
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| 128 | |
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| 129 | if {[string match "windows" $tcl_platform(platform)]} { |
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| 130 | |
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| 131 | ######################### |
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| 132 | # Windows implementation |
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| 133 | ######################### |
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| 134 | |
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| 135 | # tkButtonEnter -- |
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| 136 | # The procedure below is invoked when the mouse pointer enters a |
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| 137 | # button widget. It records the button we're in and changes the |
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| 138 | # state of the button to active unless the button is disabled. |
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| 139 | # |
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| 140 | # Arguments: |
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| 141 | # w - The name of the widget. |
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| 142 | |
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| 143 | proc tkButtonEnter w { |
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| 144 | global tkPriv |
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| 145 | if {[string compare [$w cget -state] "disabled"] \ |
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| 146 | && [string equal $tkPriv(buttonWindow) $w]} { |
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| 147 | $w configure -state active -relief sunken |
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| 148 | } |
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| 149 | set tkPriv(window) $w |
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| 150 | } |
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| 151 | |
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| 152 | # tkButtonLeave -- |
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| 153 | # The procedure below is invoked when the mouse pointer leaves a |
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| 154 | # button widget. It changes the state of the button back to |
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| 155 | # inactive. If we're leaving the button window with a mouse button |
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| 156 | # pressed (tkPriv(buttonWindow) == $w), restore the relief of the |
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| 157 | # button too. |
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| 158 | # |
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| 159 | # Arguments: |
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| 160 | # w - The name of the widget. |
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| 161 | |
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| 162 | proc tkButtonLeave w { |
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| 163 | global tkPriv |
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| 164 | if {[string compare [$w cget -state] "disabled"]} { |
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| 165 | $w configure -state normal |
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| 166 | } |
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| 167 | if {[string equal $tkPriv(buttonWindow) $w]} { |
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| 168 | $w configure -relief $tkPriv(relief) |
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| 169 | } |
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| 170 | set tkPriv(window) "" |
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| 171 | } |
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| 172 | |
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| 173 | # tkCheckRadioEnter -- |
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| 174 | # The procedure below is invoked when the mouse pointer enters a |
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| 175 | # checkbutton or radiobutton widget. It records the button we're in |
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| 176 | # and changes the state of the button to active unless the button is |
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| 177 | # disabled. |
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| 178 | # |
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| 179 | # Arguments: |
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| 180 | # w - The name of the widget. |
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| 181 | |
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| 182 | proc tkCheckRadioEnter w { |
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| 183 | global tkPriv |
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| 184 | if {[string compare [$w cget -state] "disabled"] \ |
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| 185 | && [string equal $tkPriv(buttonWindow) $w]} { |
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| 186 | $w configure -state active |
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| 187 | } |
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| 188 | set tkPriv(window) $w |
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| 189 | } |
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| 190 | |
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| 191 | # tkButtonDown -- |
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| 192 | # The procedure below is invoked when the mouse button is pressed in |
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| 193 | # a button widget. It records the fact that the mouse is in the button, |
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| 194 | # saves the button's relief so it can be restored later, and changes |
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| 195 | # the relief to sunken. |
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| 196 | # |
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| 197 | # Arguments: |
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| 198 | # w - The name of the widget. |
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| 199 | |
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| 200 | proc tkButtonDown w { |
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| 201 | global tkPriv |
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| 202 | set tkPriv(relief) [$w cget -relief] |
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| 203 | if {[string compare [$w cget -state] "disabled"]} { |
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| 204 | set tkPriv(buttonWindow) $w |
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| 205 | $w configure -relief sunken -state active |
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| 206 | } |
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| 207 | } |
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| 208 | |
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| 209 | # tkCheckRadioDown -- |
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| 210 | # The procedure below is invoked when the mouse button is pressed in |
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| 211 | # a button widget. It records the fact that the mouse is in the button, |
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| 212 | # saves the button's relief so it can be restored later, and changes |
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| 213 | # the relief to sunken. |
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| 214 | # |
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| 215 | # Arguments: |
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| 216 | # w - The name of the widget. |
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| 217 | |
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| 218 | proc tkCheckRadioDown w { |
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| 219 | global tkPriv |
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| 220 | set tkPriv(relief) [$w cget -relief] |
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| 221 | if {[string compare [$w cget -state] "disabled"]} { |
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| 222 | set tkPriv(buttonWindow) $w |
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| 223 | $w configure -state active |
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| 224 | } |
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| 225 | } |
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| 226 | |
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| 227 | # tkButtonUp -- |
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| 228 | # The procedure below is invoked when the mouse button is released |
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| 229 | # in a button widget. It restores the button's relief and invokes |
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| 230 | # the command as long as the mouse hasn't left the button. |
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| 231 | # |
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| 232 | # Arguments: |
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| 233 | # w - The name of the widget. |
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| 234 | |
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| 235 | proc tkButtonUp w { |
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| 236 | global tkPriv |
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| 237 | if {[string equal $tkPriv(buttonWindow) $w]} { |
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| 238 | set tkPriv(buttonWindow) "" |
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| 239 | $w configure -relief $tkPriv(relief) |
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| 240 | if {[string equal $tkPriv(window) $w] |
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| 241 | && [string compare [$w cget -state] "disabled"]} { |
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| 242 | $w configure -state normal |
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| 243 | uplevel #0 [list $w invoke] |
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| 244 | } |
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| 245 | } |
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| 246 | } |
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| 247 | |
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| 248 | } |
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| 249 | |
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| 250 | if {[string match "unix" $tcl_platform(platform)]} { |
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| 251 | |
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| 252 | ##################### |
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| 253 | # Unix implementation |
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| 254 | ##################### |
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| 255 | |
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| 256 | # tkButtonEnter -- |
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| 257 | # The procedure below is invoked when the mouse pointer enters a |
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| 258 | # button widget. It records the button we're in and changes the |
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| 259 | # state of the button to active unless the button is disabled. |
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| 260 | # |
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| 261 | # Arguments: |
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| 262 | # w - The name of the widget. |
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| 263 | |
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| 264 | proc tkButtonEnter {w} { |
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| 265 | global tkPriv |
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| 266 | if {[string compare [$w cget -state] "disabled"]} { |
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| 267 | $w configure -state active |
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| 268 | if {[string equal $tkPriv(buttonWindow) $w]} { |
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| 269 | $w configure -state active -relief sunken |
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| 270 | } |
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| 271 | } |
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| 272 | set tkPriv(window) $w |
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| 273 | } |
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| 274 | |
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| 275 | # tkButtonLeave -- |
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| 276 | # The procedure below is invoked when the mouse pointer leaves a |
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| 277 | # button widget. It changes the state of the button back to |
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| 278 | # inactive. If we're leaving the button window with a mouse button |
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| 279 | # pressed (tkPriv(buttonWindow) == $w), restore the relief of the |
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| 280 | # button too. |
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| 281 | # |
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| 282 | # Arguments: |
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| 283 | # w - The name of the widget. |
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| 284 | |
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| 285 | proc tkButtonLeave w { |
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| 286 | global tkPriv |
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| 287 | if {[string compare [$w cget -state] "disabled"]} { |
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| 288 | $w configure -state normal |
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| 289 | } |
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| 290 | if {[string equal $tkPriv(buttonWindow) $w]} { |
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| 291 | $w configure -relief $tkPriv(relief) |
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| 292 | } |
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| 293 | set tkPriv(window) "" |
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| 294 | } |
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| 295 | |
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| 296 | # tkButtonDown -- |
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| 297 | # The procedure below is invoked when the mouse button is pressed in |
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| 298 | # a button widget. It records the fact that the mouse is in the button, |
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| 299 | # saves the button's relief so it can be restored later, and changes |
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| 300 | # the relief to sunken. |
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| 301 | # |
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| 302 | # Arguments: |
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| 303 | # w - The name of the widget. |
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| 304 | |
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| 305 | proc tkButtonDown w { |
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| 306 | global tkPriv |
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| 307 | set tkPriv(relief) [$w cget -relief] |
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| 308 | if {[string compare [$w cget -state] "disabled"]} { |
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| 309 | set tkPriv(buttonWindow) $w |
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| 310 | $w configure -relief sunken |
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| 311 | } |
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| 312 | } |
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| 313 | |
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| 314 | # tkButtonUp -- |
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| 315 | # The procedure below is invoked when the mouse button is released |
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| 316 | # in a button widget. It restores the button's relief and invokes |
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| 317 | # the command as long as the mouse hasn't left the button. |
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| 318 | # |
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| 319 | # Arguments: |
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| 320 | # w - The name of the widget. |
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| 321 | |
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| 322 | proc tkButtonUp w { |
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| 323 | global tkPriv |
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| 324 | if {[string equal $w $tkPriv(buttonWindow)]} { |
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| 325 | set tkPriv(buttonWindow) "" |
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| 326 | $w configure -relief $tkPriv(relief) |
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| 327 | if {[string equal $w $tkPriv(window)] \ |
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| 328 | && [string compare [$w cget -state] "disabled"]} { |
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| 329 | uplevel #0 [list $w invoke] |
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| 330 | } |
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| 331 | } |
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| 332 | } |
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| 333 | |
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| 334 | } |
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| 335 | |
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| 336 | if {[string match "macintosh" $tcl_platform(platform)]} { |
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| 337 | |
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| 338 | #################### |
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| 339 | # Mac implementation |
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| 340 | #################### |
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| 341 | |
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| 342 | # tkButtonEnter -- |
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| 343 | # The procedure below is invoked when the mouse pointer enters a |
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| 344 | # button widget. It records the button we're in and changes the |
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| 345 | # state of the button to active unless the button is disabled. |
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| 346 | # |
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| 347 | # Arguments: |
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| 348 | # w - The name of the widget. |
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| 349 | |
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| 350 | proc tkButtonEnter {w} { |
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| 351 | global tkPriv |
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| 352 | if {[string compare [$w cget -state] "disabled"]} { |
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| 353 | if {[string equal $w $tkPriv(buttonWindow)]} { |
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| 354 | $w configure -state active |
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| 355 | } |
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| 356 | } |
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| 357 | set tkPriv(window) $w |
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| 358 | } |
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| 359 | |
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| 360 | # tkButtonLeave -- |
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| 361 | # The procedure below is invoked when the mouse pointer leaves a |
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| 362 | # button widget. It changes the state of the button back to |
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| 363 | # inactive. If we're leaving the button window with a mouse button |
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| 364 | # pressed (tkPriv(buttonWindow) == $w), restore the relief of the |
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| 365 | # button too. |
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| 366 | # |
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| 367 | # Arguments: |
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| 368 | # w - The name of the widget. |
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| 369 | |
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| 370 | proc tkButtonLeave w { |
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| 371 | global tkPriv |
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| 372 | if {[string equal $w $tkPriv(buttonWindow)]} { |
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| 373 | $w configure -state normal |
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| 374 | } |
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| 375 | set tkPriv(window) "" |
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| 376 | } |
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| 377 | |
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| 378 | # tkButtonDown -- |
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| 379 | # The procedure below is invoked when the mouse button is pressed in |
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| 380 | # a button widget. It records the fact that the mouse is in the button, |
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| 381 | # saves the button's relief so it can be restored later, and changes |
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| 382 | # the relief to sunken. |
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| 383 | # |
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| 384 | # Arguments: |
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| 385 | # w - The name of the widget. |
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| 386 | |
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| 387 | proc tkButtonDown w { |
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| 388 | global tkPriv |
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| 389 | if {[string compare [$w cget -state] "disabled"]} { |
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| 390 | set tkPriv(buttonWindow) $w |
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| 391 | $w configure -state active |
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| 392 | } |
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| 393 | } |
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| 394 | |
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| 395 | # tkButtonUp -- |
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| 396 | # The procedure below is invoked when the mouse button is released |
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| 397 | # in a button widget. It restores the button's relief and invokes |
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| 398 | # the command as long as the mouse hasn't left the button. |
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| 399 | # |
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| 400 | # Arguments: |
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| 401 | # w - The name of the widget. |
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| 402 | |
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| 403 | proc tkButtonUp w { |
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| 404 | global tkPriv |
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| 405 | if {[string equal $w $tkPriv(buttonWindow)]} { |
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| 406 | $w configure -state normal |
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| 407 | set tkPriv(buttonWindow) "" |
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| 408 | if {[string equal $w $tkPriv(window)] |
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| 409 | && [string compare [$w cget -state] "disabled"]} { |
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| 410 | uplevel #0 [list $w invoke] |
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| 411 | } |
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| 412 | } |
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| 413 | } |
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| 414 | |
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| 415 | } |
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| 416 | |
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| 417 | ################## |
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| 418 | # Shared routines |
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| 419 | ################## |
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| 420 | |
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| 421 | # tkButtonInvoke -- |
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| 422 | # The procedure below is called when a button is invoked through |
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| 423 | # the keyboard. It simulate a press of the button via the mouse. |
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| 424 | # |
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| 425 | # Arguments: |
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| 426 | # w - The name of the widget. |
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| 427 | |
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| 428 | proc tkButtonInvoke w { |
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| 429 | if {[string compare [$w cget -state] "disabled"]} { |
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| 430 | set oldRelief [$w cget -relief] |
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| 431 | set oldState [$w cget -state] |
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| 432 | $w configure -state active -relief sunken |
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| 433 | update idletasks |
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| 434 | after 100 |
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| 435 | $w configure -state $oldState -relief $oldRelief |
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| 436 | uplevel #0 [list $w invoke] |
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| 437 | } |
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| 438 | } |
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| 439 | |
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| 440 | # tkCheckRadioInvoke -- |
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| 441 | # The procedure below is invoked when the mouse button is pressed in |
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| 442 | # a checkbutton or radiobutton widget, or when the widget is invoked |
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| 443 | # through the keyboard. It invokes the widget if it |
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| 444 | # isn't disabled. |
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| 445 | # |
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| 446 | # Arguments: |
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| 447 | # w - The name of the widget. |
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| 448 | # cmd - The subcommand to invoke (one of invoke, select, or deselect). |
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| 449 | |
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| 450 | proc tkCheckRadioInvoke {w {cmd invoke}} { |
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| 451 | if {[string compare [$w cget -state] "disabled"]} { |
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| 452 | uplevel #0 [list $w $cmd] |
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| 453 | } |
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| 454 | } |
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| 455 | |
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