/******************************************************************************
*
* Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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;
* 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.
*
*
* PulldownMenu.h
*
*****************************************************************************/
//2015/08/10 Updated to support cascading pulldown menus.
//2017/10/15 Modified to use create method.
#pragma once
#include <oz++/motif/Menu.h>
#include <oz++/motif/MenuItem.h>
#include <oz++/motif/RowColumn.h>
#include <oz++/LinkedList.h>
namespace OZ {
class PulldownMenu :public Menu {
private:
//To manage subPulldownMenu in LinkedList object.
//This is used for automatic Garbage Collection.
LinkedList subPulldownList;
public:
PulldownMenu(View* parent, const char* name, Args& args)
:Menu()
{
PulldownMenu::create(parent, name, args);
}
PulldownMenu()
:Menu()
{
}
void create(View* parent, const char* name, Args& args)
{
if (parent == NULL) {
throw IException("Invalid parent parameter.");
}
Widget pulldownm = XmCreatePulldownMenu(parent->getWidget(),
(char*)name, args.getArgList(),
args.count() );
if (pulldownm == NULL) {
throw IException("Failed to XmCreatePulldownMenu.");
}
setWidget(pulldownm);
}
virtual void addItem(MenuItem* item, int num, View* view, Callback callback)
{
for(int i = 0; i<num; i++) {
View* kid = Menu::addItem(item, view, callback);
addKid(kid);
if(item->subItem) {
Args ar;
PulldownMenu* subPulldown = new PulldownMenu(this, "", ar);
kid -> set(XmNsubMenuId, subPulldown);
//For GC
subPulldownList.add(subPulldown);
subPulldown -> addItem(item->subItem, item->subItemsCount, view, callback);
}
item++;
}
}
};
}