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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "faketooltip.h"
#include <QStyleOption>
#include <QStylePainter>
/*!
\class Utils::FakeToolTip
\brief The FakeToolTip class is 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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