139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/* $XConsortium: ComboBoxObj.C /main/4 1995/11/06 09:39:21 rswiston $ */
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/* *
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* (c) Copyright 1993, 1994 Hewlett-Packard Company *
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* (c) Copyright 1993, 1994 International Business Machines Corp. *
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* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
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* (c) Copyright 1993, 1994 Novell, Inc. *
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*/
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#include "ComboBoxObj.h"
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#include <Xm/Label.h>
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#include <Xm/Form.h>
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#include <Xm/List.h>
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#include <Xm/ComboBox.h>
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ComboBoxObj::ComboBoxObj(MotifUI *parent,
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#if defined(USL) || defined(__uxp__)
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void (*callback)(ComboBoxObj *, char *, int),
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#else
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ComboBoxCallback callback,
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#endif
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char *name,
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char **items,
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int n_items)
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: MotifUI(parent, name, NULL)
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{
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XmString *items_list;
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int itemCount;
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if (items && n_items)
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{
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items_list = new XmString [n_items];
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int i;
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if (n_items > 8)
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itemCount = 8;
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else
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itemCount = n_items;
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for (i = 0; i < n_items; i++)
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items_list[i] = StringCreate(items[i]);
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}
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else
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items_list = NULL;
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_callback = callback;
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if (name)
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{
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XmString xm_string = StringCreate(name);
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_w = XtVaCreateManagedWidget("form", xmFormWidgetClass,
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parent->InnerWidget(), NULL);
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_label = XtVaCreateManagedWidget("form", xmLabelWidgetClass,
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_w, XmNlabelString, xm_string,
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XmNtopAttachment, XmATTACH_FORM,
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XmNbottomAttachment, XmATTACH_FORM,
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XmNleftAttachment, XmATTACH_FORM, NULL);
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_combo_box = XtVaCreateManagedWidget("combo_box", xmComboBoxWidgetClass,
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_w, XmNleftWidget, _label,
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XmNleftAttachment, XmATTACH_WIDGET,
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XmNrightAttachment, XmATTACH_FORM,
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XmNtopAttachment, XmATTACH_FORM,
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XmNbottomAttachment, XmATTACH_FORM,
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XmNcomboBoxType, XmDROP_DOWN_LIST,
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(items_list ? XmNitems : NULL),
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items_list,
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XmNitemCount, n_items,
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XmNvisibleItemCount, itemCount,
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NULL);
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StringFree(xm_string);
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}
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else
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{
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_w = XtVaCreateManagedWidget("combo_box", xmComboBoxWidgetClass,
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parent->InnerWidget(),
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XmNcomboBoxType, XmDROP_DOWN_LIST,
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(items_list ? XmNitems : NULL), items_list,
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XmNitemCount, n_items,
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XmNvisibleItemCount, itemCount, NULL);
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_label = NULL;
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_combo_box = _w;
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}
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_list = XtNameToWidget(_combo_box, "*List");
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XtAddCallback(_combo_box, XmNselectionCallback, &ComboBoxObj::SelectCB,
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(XtPointer)this);
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if (items_list)
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{
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int i;
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for (i = 0; i < n_items; i++)
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StringFree(items_list[i]);
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delete items_list;
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}
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}
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char * ComboBoxObj::Item(int item)
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{
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XmString *items;
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int n_items;
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XtVaGetValues(_list, XmNitems, &items, XmNitemCount, &n_items, NULL);
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if (item < 0 || item > n_items - 1)
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return NULL;
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else
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return StringExtract(items[item + 1]);
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}
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char * ComboBoxObj::Item(char *item)
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{
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XmString value = StringCreate(item);
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int n = XmListItemExists(_list, value);
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StringFree(value);
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if (n)
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return item;
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else
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return NULL;
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}
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void ComboBoxObj::Add(char *item)
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{
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XmString value = StringCreate(item);
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XmComboBoxAddItem(_combo_box, value, 0, True);
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StringFree(value);
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}
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void ComboBoxObj::Delete(char *item)
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{
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XmString value = StringCreate(item);
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int n = XmListItemPos(_list, value);
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if (n)
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XmComboBoxDeletePos(_combo_box, n);
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StringFree(value);
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}
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void ComboBoxObj::SelectCB(Widget, XtPointer client_data, XtPointer call_data)
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{
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ComboBoxObj *obj = (ComboBoxObj *) client_data;
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XmComboBoxCallbackStruct * cb = (XmComboBoxCallbackStruct *)call_data;
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if (obj->_callback)
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{
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char *item = obj->StringExtract(cb->item_or_text);
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(*obj->_callback)(obj, item, cb->item_position);
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XtFree(item);
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}
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}
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