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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "faketooltip.h"
#include <QStyleOption>
#include <QStylePainter>
/*!
\class Utils::FakeToolTip
\brief A widget that pretends to be a tooltip.
By default it has Qt::WA_DeleteOnClose set.
*/
namespace Utils {
FakeToolTip::FakeToolTip(QWidget *parent) :
QWidget(parent, Qt::ToolTip | Qt::WindowStaysOnTopHint)
{
setFocusPolicy(Qt::NoFocus);
setAttribute(Qt::WA_DeleteOnClose);
// Set the window and button text to the tooltip text color, since this
// widget draws the background as a tooltip.
QPalette p = palette();
const QColor toolTipTextColor = p.color(QPalette::Inactive, QPalette::ToolTipText);
p.setColor(QPalette::Inactive, QPalette::WindowText, toolTipTextColor);
p.setColor(QPalette::Inactive, QPalette::ButtonText, toolTipTextColor);
setPalette(p);
const int margin = 1 + style()->pixelMetric(QStyle::PM_ToolTipLabelFrameWidth, 0, this);
setContentsMargins(margin + 1, margin, margin, margin);
setWindowOpacity(style()->styleHint(QStyle::SH_ToolTipLabel_Opacity, 0, this) / 255.0);
}
void FakeToolTip::paintEvent(QPaintEvent *)
{
QStylePainter p(this);
QStyleOptionFrame opt;
opt.init(this);
p.drawPrimitive(QStyle::PE_PanelTipLabel, opt);
p.end();
}
void FakeToolTip::resizeEvent(QResizeEvent *)
{
QStyleHintReturnMask frameMask;
QStyleOption option;
option.init(this);
if (style()->styleHint(QStyle::SH_ToolTip_Mask, &option, this, &frameMask))
setMask(frameMask.region);
}
} // namespace Utils
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