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[/] [or1k_old/] [tags/] [start/] [insight/] [itcl/] [iwidgets3.0.0/] [generic/] [spinint.itk] - Blame information for rev 1765

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# Spinint
# ----------------------------------------------------------------------
# Implements an integer spinner widget.  It inherits basic spinner
# functionality from Spinner and adds specific features to create
# an integer-only spinner.
# Arrows may be placed horizontally or vertically.
# User may specify an integer range and step value.
# Spinner may be configured to wrap when min or max value is reached.
#
# NOTE:
# Spinint integer values should not exceed the size of a long integer.
# For a 32 bit long the integer range is -2147483648 to 2147483647.
#
# ----------------------------------------------------------------------
#   AUTHOR:  Sue Yockey               Phone: (214) 519-2517
#                                     E-mail: syockey@spd.dsccc.com
#                                             yockey@acm.org
#
#   @(#) $Id: spinint.itk,v 1.1.1.1 2002-01-16 10:24:50 markom Exp $
# ----------------------------------------------------------------------
#            Copyright (c) 1995 DSC Technologies Corporation
# ======================================================================
# Permission to use, copy, modify, distribute and license this software
# and its documentation for any purpose, and without fee or written
# agreement with DSC, is hereby granted, provided that the above copyright
# notice appears in all copies and that both the copyright notice and
# warranty disclaimer below appear in supporting documentation, and that
# the names of DSC Technologies Corporation or DSC Communications
# Corporation not be used in advertising or publicity pertaining to the
# software without specific, written prior permission.
#
# DSC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NON-
# INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND THE
# AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE MAINTENANCE,
# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. IN NO EVENT SHALL
# DSC 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.
# ======================================================================
 
#
# Usual options.
#
itk::usual Spinint {
    keep -background -borderwidth -cursor -foreground -highlightcolor \
         -highlightthickness -insertbackground  -insertborderwidth \
         -insertofftime -insertontime -insertwidth -labelfont \
         -selectbackground -selectborderwidth -selectforeground \
         -textbackground -textfont
}
 
# ------------------------------------------------------------------
#                            SPININT
# ------------------------------------------------------------------
class iwidgets::Spinint {
    inherit iwidgets::Spinner
 
    constructor {args} {
        Spinner::constructor -validate numeric
    } {}
 
    itk_option define -range range Range ""
    itk_option define -step step Step 1
    itk_option define -wrap wrap Wrap true
 
    public method up {}
    public method down {}
}
 
#
# Provide a lowercased access method for the Spinint class.
#
proc ::iwidgets::spinint {pathName args} {
    uplevel ::iwidgets::Spinint $pathName $args
}
 
# ------------------------------------------------------------------
#                        CONSTRUCTOR
# ------------------------------------------------------------------
body iwidgets::Spinint::constructor {args} {
    eval itk_initialize $args
 
    $itk_component(entry) delete 0 end
 
    if {[lindex $itk_option(-range) 0] == ""} {
        $itk_component(entry) insert 0 "0"
    } else {
        $itk_component(entry) insert 0 [lindex $itk_option(-range) 0]
    }
}
 
# ------------------------------------------------------------------
#                             OPTIONS
# ------------------------------------------------------------------
 
# ------------------------------------------------------------------
# OPTION: -range
#
# Set min and max values for spinner.
# ------------------------------------------------------------------
configbody iwidgets::Spinint::range {
    if {$itk_option(-range) != ""} {
        if {[llength $itk_option(-range)] != 2} {
            error "wrong # args: should be\
                    \"$itk_component(hull) configure -range {begin end}\""
        }
 
        set min [lindex $itk_option(-range) 0]
        set max [lindex $itk_option(-range) 1]
 
        if {![regexp {^-?[0-9]+$} $min]} {
            error "bad range option \"$min\": begin value must be\
                    an integer"
        }
        if {![regexp {^-?[0-9]+$} $max]} {
            error "bad range option \"$max\": end value must be\
                    an integer"
        }
        if {$min > $max} {
            error "bad option starting range \"$min\": must be less\
                    than ending: \"$max\""
        }
    }
}
 
# ------------------------------------------------------------------
# OPTION: -step
#
# Increment spinner by step value.
# ------------------------------------------------------------------
configbody iwidgets::Spinint::step {
}
 
# ------------------------------------------------------------------
# OPTION: -wrap
#
# Specify whether spinner should wrap value if at min or max.
# ------------------------------------------------------------------
configbody iwidgets::Spinint::wrap {
}
 
# ------------------------------------------------------------------
#                            METHODS
# ------------------------------------------------------------------
 
# ------------------------------------------------------------------
# METHOD: up
#
# Up arrow button press event.  Increment value in entry.
# ------------------------------------------------------------------
body iwidgets::Spinint::up {} {
    set min_range [lindex $itk_option(-range) 0]
    set max_range [lindex $itk_option(-range) 1]
 
    set val [$itk_component(entry) get]
    if {[lindex $itk_option(-range) 0] != ""} {
 
        #
        # Check boundaries.
        #
        if {$val >= $min_range && $val < $max_range} {
            incr val $itk_option(-step)
 
            #
            # Re-check boundaries.
            #
            if {$val >= $min_range && $val <= $max_range} {
                $itk_component(entry) delete 0 end
                $itk_component(entry) insert 0 $val
            } else {
 
                #
                # This is wrap when -step > 1.
                #
                if {$itk_option(-wrap)} {
                    if {$val > $max_range} {
                        $itk_component(entry) delete 0 end
                        $itk_component(entry) insert 0 $min_range
                    } else {
                        uplevel #0 $itk_option(-invalid)
                    }
                } else {
                    uplevel #0 $itk_option(-invalid)
                }
            }
 
        } else {
            if {$itk_option(-wrap)} {
                if {$val == $max_range} {
                    $itk_component(entry) delete 0 end
                    $itk_component(entry) insert 0 $min_range
                } else {
                    uplevel #0 $itk_option(-invalid)
                }
            } else {
                uplevel #0 $itk_option(-invalid)
            }
        }
    } else {
 
        #
        # No boundaries.
        #
        incr val $itk_option(-step)
        $itk_component(entry) delete 0 end
        $itk_component(entry) insert 0 $val
    }
}
 
# ------------------------------------------------------------------
# METHOD: down
#
# Down arrow button press event.  Decrement value in entry.
# ------------------------------------------------------------------
body iwidgets::Spinint::down {} {
    set min_range [lindex $itk_option(-range) 0]
    set max_range [lindex $itk_option(-range) 1]
 
    set val [$itk_component(entry) get]
    if {[lindex $itk_option(-range) 0] != ""} {
 
        #
        # Check boundaries.
        #
        if {$val > $min_range && $val <= $max_range} {
            incr val -$itk_option(-step)
 
            #
            # Re-check boundaries.
            #
            if {$val >= $min_range && $val <= $max_range} {
                $itk_component(entry) delete 0 end
                $itk_component(entry) insert 0 $val
            } else {
 
                #
                # This is wrap when -step > 1.
                #
                if {$itk_option(-wrap)} {
                    if {$val < $min_range} {
                        $itk_component(entry) delete 0 end
                        $itk_component(entry) insert 0 $max_range
                    } else {
                        uplevel #0 $itk_option(-invalid)
                    }
                } else {
                    uplevel #0 $itk_option(-invalid)
                }
            }
 
        } else {
            if {$itk_option(-wrap)} {
                if {$val == $min_range} {
                    $itk_component(entry) delete 0 end
                    $itk_component(entry) insert 0 $max_range
                } else {
                    uplevel #0 $itk_option(-invalid)
                }
            } else {
                uplevel #0 $itk_option(-invalid)
            }
        }
    } else {
 
        #
        # No boundaries.
        #
        incr val -$itk_option(-step)
        $itk_component(entry) delete 0 end
        $itk_component(entry) insert 0 $val
    }
}

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[/] [or1k_old/] [tags/] [start/] [insight/] [itcl/] [iwidgets3.0.0/] [generic/] [spinint.itk] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	578	markom	`# Spinint`
2			`# ----------------------------------------------------------------------`
3			`# Implements an integer spinner widget. It inherits basic spinner`
4			`# functionality from Spinner and adds specific features to create`
5			`# an integer-only spinner.`
6			`# Arrows may be placed horizontally or vertically.`
7			`# User may specify an integer range and step value.`
8			`# Spinner may be configured to wrap when min or max value is reached.`
9			`#`
10			`# NOTE:`
11			`# Spinint integer values should not exceed the size of a long integer.`
12			`# For a 32 bit long the integer range is -2147483648 to 2147483647.`
13			`#`
14			`# ----------------------------------------------------------------------`
15			`# AUTHOR: Sue Yockey Phone: (214) 519-2517`
16			`# E-mail: syockey@spd.dsccc.com`
17			`# yockey@acm.org`
18			`#`
19			`# @(#) $Id: spinint.itk,v 1.1.1.1 2002-01-16 10:24:50 markom Exp $`
20			`# ----------------------------------------------------------------------`
21			`# Copyright (c) 1995 DSC Technologies Corporation`
22			`# ======================================================================`
23			`# Permission to use, copy, modify, distribute and license this software`
24			`# and its documentation for any purpose, and without fee or written`
25			`# agreement with DSC, is hereby granted, provided that the above copyright`
26			`# notice appears in all copies and that both the copyright notice and`
27			`# warranty disclaimer below appear in supporting documentation, and that`
28			`# the names of DSC Technologies Corporation or DSC Communications`
29			`# Corporation not be used in advertising or publicity pertaining to the`
30			`# software without specific, written prior permission.`
31			`#`
32			`# DSC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING`
33			`# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NON-`
34			`# INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND THE`
35			`# AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE MAINTENANCE,`
36			`# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. IN NO EVENT SHALL`
37			`# DSC BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR`
38			`# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,`
39			`# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION,`
40			`# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS`
41			`# SOFTWARE.`
42			`# ======================================================================`
43
44			`#`
45			`# Usual options.`
46			`#`
47			`itk::usual Spinint {`
48			`keep -background -borderwidth -cursor -foreground -highlightcolor \`
49			`-highlightthickness -insertbackground -insertborderwidth \`
50			`-insertofftime -insertontime -insertwidth -labelfont \`
51			`-selectbackground -selectborderwidth -selectforeground \`
52			`-textbackground -textfont`
53			`}`
54
55			`# ------------------------------------------------------------------`
56			`# SPININT`
57			`# ------------------------------------------------------------------`
58			`class iwidgets::Spinint {`
59			`inherit iwidgets::Spinner`
60
61			`constructor {args} {`
62			`Spinner::constructor -validate numeric`
63			`} {}`
64
65			`itk_option define -range range Range ""`
66			`itk_option define -step step Step 1`
67			`itk_option define -wrap wrap Wrap true`
68
69			`public method up {}`
70			`public method down {}`
71			`}`
72
73			`#`
74			`# Provide a lowercased access method for the Spinint class.`
75			`#`
76			`proc ::iwidgets::spinint {pathName args} {`
77			`uplevel ::iwidgets::Spinint $pathName $args`
78			`}`
79
80			`# ------------------------------------------------------------------`
81			`# CONSTRUCTOR`
82			`# ------------------------------------------------------------------`
83			`body iwidgets::Spinint::constructor {args} {`
84			`eval itk_initialize $args`
85
86			`$itk_component(entry) delete 0 end`
87
88			`if {[lindex $itk_option(-range) 0] == ""} {`
89			`$itk_component(entry) insert 0 "0"`
90			`} else {`
91			`$itk_component(entry) insert 0 [lindex $itk_option(-range) 0]`
92			`}`
93			`}`
94
95			`# ------------------------------------------------------------------`
96			`# OPTIONS`
97			`# ------------------------------------------------------------------`
98
99			`# ------------------------------------------------------------------`
100			`# OPTION: -range`
101			`#`
102			`# Set min and max values for spinner.`
103			`# ------------------------------------------------------------------`
104			`configbody iwidgets::Spinint::range {`
105			`if {$itk_option(-range) != ""} {`
106			`if {[llength $itk_option(-range)] != 2} {`
107			`error "wrong # args: should be\`
108			`\"$itk_component(hull) configure -range {begin end}\""`
109			`}`
110
111			`set min [lindex $itk_option(-range) 0]`
112			`set max [lindex $itk_option(-range) 1]`
113
114			`if {![regexp {^-?[0-9]+$} $min]} {`
115			`error "bad range option \"$min\": begin value must be\`
116			`an integer"`
117			`}`
118			`if {![regexp {^-?[0-9]+$} $max]} {`
119			`error "bad range option \"$max\": end value must be\`
120			`an integer"`
121			`}`
122			`if {$min > $max} {`
123			`error "bad option starting range \"$min\": must be less\`
124			`than ending: \"$max\""`
125			`}`
126			`}`
127			`}`
128
129			`# ------------------------------------------------------------------`
130			`# OPTION: -step`
131			`#`
132			`# Increment spinner by step value.`
133			`# ------------------------------------------------------------------`
134			`configbody iwidgets::Spinint::step {`
135			`}`
136
137			`# ------------------------------------------------------------------`
138			`# OPTION: -wrap`
139			`#`
140			`# Specify whether spinner should wrap value if at min or max.`
141			`# ------------------------------------------------------------------`
142			`configbody iwidgets::Spinint::wrap {`
143			`}`
144
145			`# ------------------------------------------------------------------`
146			`# METHODS`
147			`# ------------------------------------------------------------------`
148
149			`# ------------------------------------------------------------------`
150			`# METHOD: up`
151			`#`
152			`# Up arrow button press event. Increment value in entry.`
153			`# ------------------------------------------------------------------`
154			`body iwidgets::Spinint::up {} {`
155			`set min_range [lindex $itk_option(-range) 0]`
156			`set max_range [lindex $itk_option(-range) 1]`
157
158			`set val [$itk_component(entry) get]`
159			`if {[lindex $itk_option(-range) 0] != ""} {`
160
161			`#`
162			`# Check boundaries.`
163			`#`
164			`if {$val >= $min_range && $val < $max_range} {`
165			`incr val $itk_option(-step)`
166
167			`#`
168			`# Re-check boundaries.`
169			`#`
170			`if {$val >= $min_range && $val <= $max_range} {`
171			`$itk_component(entry) delete 0 end`
172			`$itk_component(entry) insert 0 $val`
173			`} else {`
174
175			`#`
176			`# This is wrap when -step > 1.`
177			`#`
178			`if {$itk_option(-wrap)} {`
179			`if {$val > $max_range} {`
180			`$itk_component(entry) delete 0 end`
181			`$itk_component(entry) insert 0 $min_range`
182			`} else {`
183			`uplevel #0 $itk_option(-invalid)`
184			`}`
185			`} else {`
186			`uplevel #0 $itk_option(-invalid)`
187			`}`
188			`}`
189
190			`} else {`
191			`if {$itk_option(-wrap)} {`
192			`if {$val == $max_range} {`
193			`$itk_component(entry) delete 0 end`
194			`$itk_component(entry) insert 0 $min_range`
195			`} else {`
196			`uplevel #0 $itk_option(-invalid)`
197			`}`
198			`} else {`
199			`uplevel #0 $itk_option(-invalid)`
200			`}`
201			`}`
202			`} else {`
203
204			`#`
205			`# No boundaries.`
206			`#`
207			`incr val $itk_option(-step)`
208			`$itk_component(entry) delete 0 end`
209			`$itk_component(entry) insert 0 $val`
210			`}`
211			`}`
212
213			`# ------------------------------------------------------------------`
214			`# METHOD: down`
215			`#`
216			`# Down arrow button press event. Decrement value in entry.`
217			`# ------------------------------------------------------------------`
218			`body iwidgets::Spinint::down {} {`
219			`set min_range [lindex $itk_option(-range) 0]`
220			`set max_range [lindex $itk_option(-range) 1]`
221
222			`set val [$itk_component(entry) get]`
223			`if {[lindex $itk_option(-range) 0] != ""} {`
224
225			`#`
226			`# Check boundaries.`
227			`#`
228			`if {$val > $min_range && $val <= $max_range} {`
229			`incr val -$itk_option(-step)`
230
231			`#`
232			`# Re-check boundaries.`
233			`#`
234			`if {$val >= $min_range && $val <= $max_range} {`
235			`$itk_component(entry) delete 0 end`
236			`$itk_component(entry) insert 0 $val`
237			`} else {`
238
239			`#`
240			`# This is wrap when -step > 1.`
241			`#`
242			`if {$itk_option(-wrap)} {`
243			`if {$val < $min_range} {`
244			`$itk_component(entry) delete 0 end`
245			`$itk_component(entry) insert 0 $max_range`
246			`} else {`
247			`uplevel #0 $itk_option(-invalid)`
248			`}`
249			`} else {`
250			`uplevel #0 $itk_option(-invalid)`
251			`}`
252			`}`
253
254			`} else {`
255			`if {$itk_option(-wrap)} {`
256			`if {$val == $min_range} {`
257			`$itk_component(entry) delete 0 end`
258			`$itk_component(entry) insert 0 $max_range`
259			`} else {`
260			`uplevel #0 $itk_option(-invalid)`
261			`}`
262			`} else {`
263			`uplevel #0 $itk_option(-invalid)`
264			`}`
265			`}`
266			`} else {`
267
268			`#`
269			`# No boundaries.`
270			`#`
271			`incr val -$itk_option(-step)`
272			`$itk_component(entry) delete 0 end`
273			`$itk_component(entry) insert 0 $val`
274			`}`
275			`}`