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425 lines
15 KiB
Plaintext
425 lines
15 KiB
Plaintext
15 years ago
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#
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# Dateentry
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# ----------------------------------------------------------------------
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# Implements a quicken style date entry field with a popup calendar
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# by combining the datefield and calendar widgets together. This
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# allows a user to enter the date via the keyboard or by using the
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# mouse by selecting the calendar icon which brings up a popup calendar.
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# ----------------------------------------------------------------------
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# AUTHOR: Mark L. Ulferts E-mail: mulferts@austin.dsccc.com
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#
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# @(#) $Id: dateentry.itk,v 1.6 2002/09/05 19:33:58 smithc Exp $
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# ----------------------------------------------------------------------
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# Copyright (c) 1997 DSC Technologies Corporation
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# ======================================================================
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# Permission to use, copy, modify, distribute and license this software
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# and its documentation for any purpose, and without fee or written
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# agreement with DSC, is hereby granted, provided that the above copyright
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# notice appears in all copies and that both the copyright notice and
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# warranty disclaimer below appear in supporting documentation, and that
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# the names of DSC Technologies Corporation or DSC Communications
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# Corporation not be used in advertising or publicity pertaining to the
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# software without specific, written prior permission.
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#
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# DSC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NON-
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# INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND THE
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# AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE MAINTENANCE,
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# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. IN NO EVENT SHALL
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# DSC BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION,
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# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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# SOFTWARE.
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# ======================================================================
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#
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# ----------------------------------------------------------------------
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#
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# Modified 2001-10-23 by Mark Alston to pass options to the datefield
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# constructor. Needed to allow use of new option -int which lets the
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# user use dates in YYYY-MM-DD format as well as MM/DD/YYYY format.
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#
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# option -int yes sets dates to YYYY-MM-DD format
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# -int no sets dates to MM/DD/YYYY format.
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#
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# ----------------------------------------------------------------------
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#
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# Usual options.
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#
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itk::usual Dateentry {
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keep -background -borderwidth -currentdatefont -cursor \
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-datefont -dayfont -foreground -highlightcolor \
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-highlightthickness -labelfont -textbackground -textfont \
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-titlefont -int
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}
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# ------------------------------------------------------------------
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# DATEENTRY
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# ------------------------------------------------------------------
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itcl::class iwidgets::Dateentry {
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inherit iwidgets::Datefield
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constructor {args} {
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eval Datefield::constructor $args
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} {}
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itk_option define -grab grab Grab "global"
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itk_option define -icon icon Icon {}
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#
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# The calendar widget isn't created until needed, yet we need
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# its options to be available upon creation of a dateentry widget.
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# So, we'll define them in these class now so they can just be
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# propagated onto the calendar later.
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#
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itk_option define -days days Days {Su Mo Tu We Th Fr Sa}
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itk_option define -forwardimage forwardImage Image {}
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itk_option define -backwardimage backwardImage Image {}
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itk_option define -weekdaybackground weekdayBackground Background \#d9d9d9
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itk_option define -weekendbackground weekendBackground Background \#d9d9d9
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itk_option define -outline outline Outline \#d9d9d9
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itk_option define -buttonforeground buttonForeground Foreground blue
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itk_option define -foreground foreground Foreground black
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itk_option define -selectcolor selectColor Foreground red
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itk_option define -selectthickness selectThickness SelectThickness 3
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itk_option define -titlefont titleFont Font \
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-*-helvetica-bold-r-normal--*-140-*
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itk_option define -dayfont dayFont Font \
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-*-helvetica-medium-r-normal--*-120-*
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itk_option define -datefont dateFont Font \
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-*-helvetica-medium-r-normal--*-120-*
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itk_option define -currentdatefont currentDateFont Font \
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-*-helvetica-bold-r-normal--*-120-*
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itk_option define -startday startDay Day sunday
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itk_option define -height height Height 165
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itk_option define -width width Width 200
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itk_option define -state state State normal
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protected {
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method _getPopupDate {date}
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method _releaseGrab {}
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method _releaseGrabCheck {rootx rooty}
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method _popup {}
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method _getDefaultIcon {}
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common _defaultIcon ""
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}
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}
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#
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# Provide a lowercased access method for the dateentry class.
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#
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proc ::iwidgets::dateentry {pathName args} {
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uplevel ::iwidgets::Dateentry $pathName $args
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}
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# ------------------------------------------------------------------
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# CONSTRUCTOR
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# ------------------------------------------------------------------
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itcl::body iwidgets::Dateentry::constructor {args} {
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#
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# Create an icon label to act as a button to bring up the
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# calendar popup.
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#
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itk_component add iconbutton {
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label $itk_interior.iconbutton -relief raised
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} {
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keep -borderwidth -cursor -foreground
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}
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grid $itk_component(iconbutton) -row 0 -column 0 -sticky ns
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#
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# Initialize the widget based on the command line options.
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#
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eval itk_initialize $args
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}
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# ------------------------------------------------------------------
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# OPTIONS
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# ------------------------------------------------------------------
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# ------------------------------------------------------------------
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# OPTION: -icon
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#
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# Specifies the calendar icon image to be used in the date.
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# Should one not be provided, then a default pixmap will be used
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# if possible, bitmap otherwise.
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# ------------------------------------------------------------------
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itcl::configbody iwidgets::Dateentry::icon {
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if {$itk_option(-icon) == {}} {
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$itk_component(iconbutton) configure -image [_getDefaultIcon]
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} else {
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if {[lsearch [image names] $itk_option(-icon)] == -1} {
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error "bad icon option \"$itk_option(-icon)\":\
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should be an existing image"
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} else {
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$itk_component(iconbutton) configure -image $itk_option(-icon)
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}
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}
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}
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# ------------------------------------------------------------------
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# OPTION: -grab
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#
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# Specifies the grab level, local or global, to be obtained when
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# bringing up the popup calendar. The default is global.
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# ------------------------------------------------------------------
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itcl::configbody iwidgets::Dateentry::grab {
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switch -- $itk_option(-grab) {
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"local" - "global" {}
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default {
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error "bad grab option \"$itk_option(-grab)\":\
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should be local or global"
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}
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}
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}
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# ------------------------------------------------------------------
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# OPTION: -state
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#
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# Specifies the state of the widget which may be disabled or
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# normal. A disabled state prevents selection of the date field
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# or date icon button.
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# ------------------------------------------------------------------
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itcl::configbody iwidgets::Dateentry::state {
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switch -- $itk_option(-state) {
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normal {
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bind $itk_component(iconbutton) <Button-1> [itcl::code $this _popup]
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}
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disabled {
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bind $itk_component(iconbutton) <Button-1> {}
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}
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}
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}
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# ------------------------------------------------------------------
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# METHODS
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# ------------------------------------------------------------------
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# ------------------------------------------------------------------
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# PROTECTED METHOD: _getDefaultIcon
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#
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# This method is invoked uto retrieve the name of the default icon
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# image displayed in the icon button.
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# ------------------------------------------------------------------
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itcl::body iwidgets::Dateentry::_getDefaultIcon {} {
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if {[lsearch [image types] pixmap] != -1} {
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set _defaultIcon [image create pixmap -data {
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/* XPM */
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static char *calendar[] = {
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/* width height num_colors chars_per_pixel */
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" 25 20 6 1",
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/* colors */
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". c #808080",
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"# c #040404",
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"a c #848484",
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"b c #fc0404",
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"c c #fcfcfc",
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"d c #c0c0c0",
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/* pixels */
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"d##########d###########dd",
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"d#ccccccccc##ccccccccca#d",
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"##ccccccccc.#ccccccccc..#",
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"##cccbbcccca#cccbbbccca.#",
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"##cccbbcccc.#ccbbbbbcc..#",
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"##cccbbccc####ccccbbcc..#",
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"##cccbbcccca#ccccbbbcca.#",
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"##cccbbcccc.#cccbbbccc..#",
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"##cccbbcccca#ccbbbcccca.#",
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"##cccbbbccc.#ccbbbbbcc..#",
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"##ccccccccc.#ccccccccc..#",
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"##ccccccccca#ccccccccca.#",
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"##cc#####c#cd#c#####cc..#",
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"##cccccccc####cccccccca.#",
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"##cc#####cc.#cc#####cc..#",
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"##ccccccccc.#ccccccccc..#",
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"##ccccccccc.#ccccccccc..#",
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"##..........#...........#",
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"###..........#..........#",
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"#########################"
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};
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}]
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} else {
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set _defaultIcon [image create bitmap -data {
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#define calendr2_width 25
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#define calendr2_height 20
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static char calendr2_bits[] = {
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0xfe,0xf7,0x7f,0xfe,0x02,0x18,0xc0,0xfe,0x03,
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0x18,0x80,0xff,0x63,0x10,0x47,0xff,0x43,0x98,
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0x8a,0xff,0x63,0x3c,0x4c,0xff,0x43,0x10,0x8a,
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0xff,0x63,0x18,0x47,0xff,0x23,0x90,0x81,0xff,
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0xe3,0x98,0x4e,0xff,0x03,0x10,0x80,0xff,0x03,
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0x10,0x40,0xff,0xf3,0xa5,0x8f,0xff,0x03,0x3c,
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0x40,0xff,0xf3,0x99,0x8f,0xff,0x03,0x10,0x40,
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0xff,0x03,0x18,0x80,0xff,0x57,0x55,0x55,0xff,
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0x57,0xb5,0xaa,0xff,0xff,0xff,0xff,0xff};
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}]
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}
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#
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# Since this image will only need to be created once, we redefine
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# this method to just return the image name for subsequent calls.
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#
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itcl::body ::iwidgets::Dateentry::_getDefaultIcon {} {
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return $_defaultIcon
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}
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return $_defaultIcon
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}
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# ------------------------------------------------------------------
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# PROTECTED METHOD: _popup
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#
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# This method is invoked upon selection of the icon button. It
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# creates a calendar widget within a toplevel popup, calculates
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# the position at which to display the calendar, performs a grab
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# and displays the calendar.
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# ------------------------------------------------------------------
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itcl::body iwidgets::Dateentry::_popup {} {
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#
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# First, let's nullify the icon binding so that any another
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# selections are ignored until were done with this one. Next,
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# change the relief of the icon.
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#
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bind $itk_component(iconbutton) <Button-1> {}
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$itk_component(iconbutton) configure -relief sunken
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#
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# Create a withdrawn toplevel widget and remove the window
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# decoration via override redirect.
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#
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itk_component add -private popup {
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toplevel $itk_interior.popup
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}
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$itk_component(popup) configure -borderwidth 2 -background black
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wm withdraw $itk_component(popup)
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wm overrideredirect $itk_component(popup) 1
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#
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# Add a binding to button 1 events in order to detect mouse
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# clicks off the calendar in which case we'll release the grab.
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# Also add a binding for Escape to always release.
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#
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bind $itk_component(popup) <1> [itcl::code $this _releaseGrabCheck %X %Y]
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bind $itk_component(popup) <KeyPress-Escape> [itcl::code $this _releaseGrab]
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#
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# Create the calendar widget and set its cursor properly.
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#
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itk_component add calendar {
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iwidgets::Calendar $itk_component(popup).calendar \
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-command [itcl::code $this _getPopupDate %d] \
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-int $itk_option(-int)
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} {
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usual
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keep -days -forwardimage -backwardimage -weekdaybackground \
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-weekendbackground -outline -buttonforeground -selectcolor \
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-selectthickness -titlefont -dayfont -datefont \
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-currentdatefont -startday -width -height
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}
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grid $itk_component(calendar) -row 0 -column 0
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$itk_component(calendar) configure -cursor top_left_arrow
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#
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# The icon button will be used as the basis for the position of the
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# popup on the screen. We'll always attempt to locate the popup
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# off the lower right corner of the button. If that would put
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# the popup off the screen, then we'll put above the upper left.
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#
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set rootx [winfo rootx $itk_component(iconbutton)]
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set rooty [winfo rooty $itk_component(iconbutton)]
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set popupwidth [winfo reqwidth $itk_component(popup)]
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set popupheight [winfo reqheight $itk_component(popup)]
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set popupx [expr {$rootx + 3 + \
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[winfo width $itk_component(iconbutton)]}]
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set popupy [expr {$rooty + 3 + \
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[winfo height $itk_component(iconbutton)]}]
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if {(($popupx + $popupwidth) > [winfo screenwidth .]) || \
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(($popupy + $popupheight) > [winfo screenheight .])} {
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set popupx [expr {$rootx - 3 - $popupwidth}]
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set popupy [expr {$rooty - 3 - $popupheight}]
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}
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#
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# Get the current date from the datefield widget and both
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# show and select it on the calendar.
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#
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# Added catch for bad dates. Calendar then shows current date.
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if [catch "$itk_component(calendar) show [get]" err] {
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$itk_component(calendar) show now
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$itk_component(calendar) select now
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} else {
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$itk_component(calendar) select [get]
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}
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#
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# Display the popup at the calculated position.
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#
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wm geometry $itk_component(popup) +$popupx+$popupy
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wm deiconify $itk_component(popup)
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tkwait visibility $itk_component(popup)
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#
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# Perform either a local or global grab based on the -grab option.
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#
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if {$itk_option(-grab) == "local"} {
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grab $itk_component(popup)
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} else {
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grab -global $itk_component(popup)
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}
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#
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# Make sure the widget is above all others and give it focus.
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#
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raise $itk_component(popup)
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focus $itk_component(calendar)
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}
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# ------------------------------------------------------------------
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# PROTECTED METHOD: _popupGetDate
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#
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# This method is the callback for selection of a date on the
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# calendar. It releases the grab and sets the date in the
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# datefield widget.
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# ------------------------------------------------------------------
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itcl::body iwidgets::Dateentry::_getPopupDate {date} {
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_releaseGrab
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show $date
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}
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# ------------------------------------------------------------------
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# PROTECTED METHOD: _releaseGrabCheck rootx rooty
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#
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# This method handles mouse button 1 events. If the selection
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# occured within the bounds of the calendar, then return normally
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# and let the calendar handle the event. Otherwise, we'll drop
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# the calendar and release the grab.
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# ------------------------------------------------------------------
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itcl::body iwidgets::Dateentry::_releaseGrabCheck {rootx rooty} {
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set calx [winfo rootx $itk_component(calendar)]
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set caly [winfo rooty $itk_component(calendar)]
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set calwidth [winfo reqwidth $itk_component(calendar)]
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set calheight [winfo reqheight $itk_component(calendar)]
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if {($rootx < $calx) || ($rootx > ($calx + $calwidth)) || \
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($rooty < $caly) || ($rooty > ($caly + $calheight))} {
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_releaseGrab
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return -code break
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}
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|
}
|
||
|
|
||
|
# ------------------------------------------------------------------
|
||
|
# PROTECTED METHOD: _releaseGrab
|
||
|
#
|
||
|
# This method releases the grab, destroys the popup, changes the
|
||
|
# relief of the button back to raised and reapplies the binding
|
||
|
# to the icon button that engages the popup action.
|
||
|
# ------------------------------------------------------------------
|
||
|
itcl::body iwidgets::Dateentry::_releaseGrab {} {
|
||
|
grab release $itk_component(popup)
|
||
|
$itk_component(iconbutton) configure -relief raised
|
||
|
destroy $itk_component(popup)
|
||
|
bind $itk_component(iconbutton) <Button-1> [itcl::code $this _popup]
|
||
|
}
|