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cgdelete.pro
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; docformat = 'rst'
;
; NAME:
; cgDelete
;
; PURPOSE:
; Allows the user to delete one or more cgWindow applications. The cgWindow can
; be identifed by window index number, widget identifier, title, or object reference,
; depending on which keywords are set.
;
;******************************************************************************************;
; ;
; Copyright (c) 2011, by Fanning Software Consulting, Inc. All rights reserved. ;
; ;
; Redistribution and use in source and binary forms, with or without ;
; modification, are permitted provided that the following conditions are met: ;
; ;
; * Redistributions of source code must retain the above copyright ;
; notice, this list of conditions and the following disclaimer. ;
; * Redistributions in binary form must reproduce the above copyright ;
; notice, this list of conditions and the following disclaimer in the ;
; documentation and/or other materials provided with the distribution. ;
; * Neither the name of Fanning Software Consulting, Inc. nor the names of its ;
; contributors may be used to endorse or promote products derived from this ;
; software without specific prior written permission. ;
; ;
; THIS SOFTWARE IS PROVIDED BY FANNING SOFTWARE CONSULTING, INC. ''AS IS'' AND ANY ;
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ;
; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT ;
; SHALL FANNING SOFTWARE CONSULTING, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, ;
; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED ;
; TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ;
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ;
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ;
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ;
;******************************************************************************************;
;
;+
; Allows the user to delete one or more cgWindow applications. The cgWindow can
; be identifed by window index number, widget identifier, title, or object reference,
; depending on which keywords are set.
;
; :Categories:
; Graphics
;
; :Params:
; selection: in, optional, type=varies
; Normally, a window index number of an cgWindow application. But, the selection
; can be a widget identifier, an object reference, or a window title, depending on
; which keywords are set. The cgWindow matching the selection is deleted. If not
; provided, the current cgWindow is deleted.
;
; :Keywords:
; all: in, optional, type=boolean, default=0
; If this keyword is set, all the cgWindow applications currently on the display
; are deleted.
; object: in, optional, type=boolean
; If this keyword is set, the selection is assumed to be an object reference.
; title: in, optional, type=boolean
; If this keyword is set, the selection is assumed to be a window title. All
; matching is done in uppercase characters.
; widgetid: in, optional, type=boolean
; If this keyword is set, the selection is assumed to be a widget identifier.
;
; :Examples:
; Used to delete an cgWindow application::
; IDL> cgDelete, 'Window 1', /TITLE
;
; :Author:
; FANNING SOFTWARE CONSULTING::
; David W. Fanning
; 1645 Sheely Drive
; Fort Collins, CO 80526 USA
; Phone: 970-221-0438
; E-mail: [email protected]
; Coyote's Guide to IDL Programming: http://www.idlcoyote.com
;
; :History:
; Change History::
; Written, 24 January 2011. DWF.
;
; :Copyright:
; Copyright (c) 2011, Fanning Software Consulting, Inc.
;-
PRO cgDelete, selection, ALL=all, OBJECT=object, WIDGETID=widgetID, TITLE=title
Compile_Opt idl2
; Error handling.
Catch, theError
IF theError NE 0 THEN BEGIN
Catch, /CANCEL
ok = Dialog_Message(!Error_State.MSG)
RETURN
ENDIF
; Get the values you need.
wid = cgQuery(WIDGETID=tlb, OBJECT=objref, TITLE=titles, COUNT=count)
IF count EQ 0 THEN RETURN
; Check the match criteria.
IF N_Elements(selection) NE 0 THEN BEGIN
IF Size(selection, /TNAME) EQ 'OBJREF' THEN object = 1
IF Size(selection, /TNAME) EQ 'STRING' THEN title = 1
ENDIF
; Get the window list.
list = !FSC_Window_List
; Decide what to do based on the type of match.
CASE 1 OF
Keyword_Set(widgetID): BEGIN
IF N_Elements(selection) EQ 0 THEN selection = tlb[count-1]
index = Where(tlb EQ selection, selectCount)
IF selectCount EQ 0 THEN Message, 'No cgWindow matches the selection criteria.'
END
Keyword_Set(object): BEGIN
IF N_Elements(selection) EQ 0 THEN selection = objref[count-1]
index = Where(objref EQ selection, selectCount)
IF selectCount EQ 0 THEN Message, 'No cgWindow matches the selection criteria.'
END
Keyword_Set(title): BEGIN
IF N_Elements(selection) EQ 0 THEN selection = title[count-1]
index = Where(StrUpCase(titles) EQ StrUpCase(selection), selectCount)
IF selectCount EQ 0 THEN Message, 'No cgWindow matches the selection criteria.'
END
ELSE: BEGIN
IF N_Elements(selection) EQ 0 THEN selection = wid[count-1]
index = Where(wid EQ selection, selectCount)
IF selectCount EQ 0 THEN Message, 'No cgWindow matches the selection criteria.'
END
ENDCASE
; Make sure the index is a scalar.
index = index[0]
; Delete the window.
IF Keyword_Set(all) THEN BEGIN
FOR j=0,count-1 DO Widget_Control, tlb[j], /Destroy
ENDIF ELSE BEGIN
Widget_Control, tlb[index], /Destroy
ENDELSE
; Find the next window in line and send it forward on the display.
wid = cgQuery(WIDGETID=tlb, OBJECT=objref, TITLE=titles, COUNT=count, /CURRENT)
IF count GT 0 THEN Widget_Control, tlb, /Show
END