libRocket/Source/Controls/ElementDataGridExpandButton.cpp

/*
 * This source file is part of libRocket, the HTML/CSS Interface Middleware
 *
 * For the latest information, see http://www.librocket.com
 *
 * Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

#include "../../Include/Rocket/Controls/ElementDataGridExpandButton.h"
#include "../../Include/Rocket/Controls/ElementDataGridRow.h"

namespace Rocket {
namespace Controls {

ElementDataGridExpandButton::ElementDataGridExpandButton(const Rocket::Core::String& tag) : Core::Element(tag)
{
	SetClass("collapsed", true);
}

ElementDataGridExpandButton::~ElementDataGridExpandButton()
{
}

void ElementDataGridExpandButton::ProcessEvent(Core::Event& event)
{
	Core::Element::ProcessEvent(event);

	if (event == "click" && event.GetCurrentElement() == this)
	{
		// Look for the first data grid row above us, and toggle their on/off
		// state.
		Core::Element* parent = GetParentNode();
		ElementDataGridRow* parent_row;
		do
		{
			parent_row = dynamic_cast< ElementDataGridRow* >(parent);
			parent = parent->GetParentNode();
		}
		while (parent && !parent_row);

		if (parent_row)
		{
			parent_row->ToggleRow();

			if (parent_row->IsRowExpanded())
			{
				SetClass("collapsed", false);
				SetClass("expanded", true);
			}
			else
			{
				SetClass("collapsed", true);
				SetClass("expanded", false);
			}
		}
	}
}

}
}