kwqlistbox.cpp

手机浏览器源码程序,功能强大

/*
 * Copyright (C) 2004 Apple Computer, Inc.  All rights reserved.
 * Portions Copyright (c) 2005 Nokia Corporation, 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, 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 APPLE COMPUTER, INC. OR
 * CONTRIBUTORS 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.
 */

#include "KWQListBox.h"

#include "KWQKHTMLPart.h"
#include "WebCoreBridge.h"
const int minLines = 4; /* ensures we have a scroll bar */
const float bottomMargin = 1;
const float leftMargin = 2;
const float rightMargin = 2;

QListBox::QListBox(QWidget *parent)
    : QScrollView(parent)
    , _changingSelection(false)
    , _enabled(true)
    , _widthGood(false)
    , _clicked(this, SIGNAL(clicked(QListBoxItem *)))
    , _selectionChanged(this, SIGNAL(selectionChanged()))
{
	_listWidget = TWebCoreFormControlFactory::Factory()->ConstructSelect(ETrue);
	if(_listWidget)
	{
		_listWidget->SetEventHandler(this);
		setView(_listWidget);
	}
}

QListBox::~QListBox()
{
	if (_listWidget)
	{
		_listWidget->Close();
	}
}

void QListBox::clear()
{
	if(_listWidget)
	{
		_listWidget->Clear();
	}
}

void QListBox::setSelectionMode(SelectionMode mode)
{
	TBool multiple = (mode != Single);
	if(_listWidget)
	{
		_listWidget->SetSelectionMode(multiple);
	}
}

void QListBox::appendItem(const QString &text, bool isLabel, bool isDisabled)
{
	if(_listWidget)
	{
		_listWidget->AppendItem(text.Des(), isLabel, isDisabled);
	}
}

void QListBox::doneAppendingItems()
{
	if(_listWidget)
	{
		_listWidget->DoneAppendingItems();
	}
}

void QListBox::setSelected(int index, bool selectIt)
{
	if(_listWidget)
	{
		_listWidget->SetSelected(index, selectIt);
	}
}

void QListBox::doneSelectingItems()
{
	if(_listWidget)
	{
		_listWidget->DoneSelectingItems();
	}
}

bool QListBox::isSelected(int index) const
{
	if(_listWidget)
	{
		return _listWidget->IsSelected(index);
	}
	return false;
}

void QListBox::setEnabled(bool enabled)
{
	_enabled = enabled;
}

bool QListBox::isEnabled()
{
    return _enabled;
}

QSize QListBox::sizeForNumberOfLines(int lines) const
{
	if(_listWidget)
	{
		return QSize(_listWidget->SizeForNumberOfLines(lines));
	}
	return QSize(0,0);
}

QWidget::FocusPolicy QListBox::focusPolicy() const
{
	return QScrollView::focusPolicy();
}

bool QListBox::checksDescendantsForFocus() const
{
//TODO
    return true;
}

void QListBox::setWritingDirection(QPainter::TextDirection d)
{
//TODO
}

void QListBox::setFont(const QFont &font)
{
	QWidget::setFont(font);
	if(_listWidget)
	{
		QFont fontCpy = font;
		CFont* symFont = const_cast<CFont*>(fontCpy.Font());
		_listWidget->SetFont(symFont );
	}
}

void QListBox::HandleEvent(TEvent aEvent)
{
	selectionChanged();
}