Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtprintinfo/libUI/MotifUI/ComboBoxObj.C

@@ -0,0 +1,138 @@
+/* $XConsortium: ComboBoxObj.C /main/4 1995/11/06 09:39:21 rswiston $ */
+/*                                                                      *
+ * (c) Copyright 1993, 1994 Hewlett-Packard Company                     *
+ * (c) Copyright 1993, 1994 International Business Machines Corp.       *
+ * (c) Copyright 1993, 1994 Sun Microsystems, Inc.                      *
+ * (c) Copyright 1993, 1994 Novell, Inc.                                *
+ */
+
+#include "ComboBoxObj.h"
+
+#include <Xm/Label.h>
+#include <Xm/Form.h>
+#include <Xm/List.h>
+#include <Xm/ComboBox.h>
+
+ComboBoxObj::ComboBoxObj(MotifUI *parent,
+#if defined(USL) || defined(__uxp__)
+			 void (*callback)(ComboBoxObj *, char *, int),
+#else
+			 ComboBoxCallback callback, 
+#endif
+                         char *name, 
+			 char **items, 
+			 int n_items)
+	: MotifUI(parent, name, NULL)
+{
+   XmString *items_list;
+   int itemCount;
+   if (items && n_items)
+    {
+      items_list = new XmString [n_items];
+      int i;
+      if (n_items > 8)
+	 itemCount = 8;
+      else
+	 itemCount = n_items;
+      for (i = 0; i < n_items; i++)
+         items_list[i] = StringCreate(items[i]);
+    }
+   else
+      items_list = NULL;
+   _callback = callback;
+   if (name)
+    {
+      XmString xm_string = StringCreate(name);
+      _w = XtVaCreateManagedWidget("form", xmFormWidgetClass, 
+				   parent->InnerWidget(), NULL);
+      _label = XtVaCreateManagedWidget("form", xmLabelWidgetClass, 
+				       _w, XmNlabelString, xm_string,
+				       XmNtopAttachment, XmATTACH_FORM, 
+				       XmNbottomAttachment, XmATTACH_FORM, 
+				       XmNleftAttachment, XmATTACH_FORM, NULL); 
+      _combo_box = XtVaCreateManagedWidget("combo_box", xmComboBoxWidgetClass, 
+				           _w, XmNleftWidget, _label,
+				           XmNleftAttachment, XmATTACH_WIDGET,
+				           XmNrightAttachment, XmATTACH_FORM,
+				           XmNtopAttachment, XmATTACH_FORM, 
+				           XmNbottomAttachment, XmATTACH_FORM, 
+					   XmNcomboBoxType, XmDROP_DOWN_LIST,
+					   (items_list ? XmNitems : NULL),
+					      items_list,
+					   XmNitemCount, n_items,
+					   XmNvisibleItemCount, itemCount, 
+					   NULL); 
+      StringFree(xm_string);
+    }
+   else
+    {
+      _w = XtVaCreateManagedWidget("combo_box", xmComboBoxWidgetClass, 
+				   parent->InnerWidget(),
+				   XmNcomboBoxType, XmDROP_DOWN_LIST,
+				   (items_list ? XmNitems : NULL), items_list,
+				   XmNitemCount, n_items,
+		                   XmNvisibleItemCount, itemCount, NULL); 
+      _label = NULL;
+      _combo_box = _w;
+    }
+   _list = XtNameToWidget(_combo_box, "*List");
+   XtAddCallback(_combo_box, XmNselectionCallback, &ComboBoxObj::SelectCB, 
+		 (XtPointer)this);
+   if (items_list)
+    {
+      int i;
+      for (i = 0; i < n_items; i++)
+         StringFree(items_list[i]);
+      delete items_list;
+    }
+}
+
+char * ComboBoxObj::Item(int item)
+{
+   XmString *items;
+   int n_items;
+   XtVaGetValues(_list, XmNitems, &items, XmNitemCount, &n_items, NULL);
+   if (item < 0 || item > n_items - 1)
+      return NULL;
+   else
+      return StringExtract(items[item + 1]);
+}
+
+char * ComboBoxObj::Item(char *item)
+{
+   XmString value = StringCreate(item);
+   int n = XmListItemExists(_list, value);
+   StringFree(value);
+   if (n)
+      return item;
+   else
+      return NULL;
+}
+
+void ComboBoxObj::Add(char *item)
+{
+   XmString value = StringCreate(item);
+   XmComboBoxAddItem(_combo_box, value, 0, True);
+   StringFree(value);
+}
+
+void ComboBoxObj::Delete(char *item)
+{
+   XmString value = StringCreate(item);
+   int n = XmListItemPos(_list, value);
+   if (n)
+      XmComboBoxDeletePos(_combo_box, n);
+   StringFree(value);
+}
+
+void ComboBoxObj::SelectCB(Widget, XtPointer client_data, XtPointer call_data)
+{
+   ComboBoxObj *obj = (ComboBoxObj *) client_data;
+   XmComboBoxCallbackStruct * cb = (XmComboBoxCallbackStruct *)call_data;
+   if (obj->_callback)
+    {
+      char *item = obj->StringExtract(cb->item_or_text);
+      (*obj->_callback)(obj, item, cb->item_position);
+      XtFree(item);
+    }
+}