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107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
// vim: set tabstop=4 shiftwidth=4 expandtab:
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/*
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Gwenview: an image viewer
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Copyright 2009 Aurélien Gâteau <agateau@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
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*/
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// Self
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#include "moc_tooltipwidget.cpp"
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// Qt
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#include <QPainter>
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#include <QPainterPath>
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#include <QToolTip>
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// KDE
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#include <KDebug>
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#include <KColorScheme>
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// Local
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#include <lib/paintutils.h>
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static const int RADIUS = 5;
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static const int HMARGIN = 2;
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namespace Gwenview
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{
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struct ToolTipWidgetPrivate
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{
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QString mText;
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qreal mOpacity;
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};
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ToolTipWidget::ToolTipWidget(QWidget* parent)
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: QWidget(parent)
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, d(new ToolTipWidgetPrivate)
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{
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d->mOpacity = 1.;
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setAttribute(Qt::WA_NoSystemBackground);
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}
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ToolTipWidget::~ToolTipWidget()
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{
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delete d;
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}
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qreal ToolTipWidget::opacity() const
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{
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return d->mOpacity;
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}
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void ToolTipWidget::setOpacity(qreal opacity)
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{
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d->mOpacity = opacity;
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update();
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}
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QString ToolTipWidget::text() const
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{
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return d->mText;
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}
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void ToolTipWidget::setText(const QString& text)
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{
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d->mText = text;
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update();
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}
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QSize ToolTipWidget::sizeHint() const
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{
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QSize sh = fontMetrics().size(0 /* flags */, d->mText);
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return QSize(sh.width() + 2 * HMARGIN, sh.height());
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}
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void ToolTipWidget::paintEvent(QPaintEvent*)
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{
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QColor bg2Color = palette().color(QPalette::Highlight);
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QColor bg1Color = KColorScheme::shade(bg2Color, KColorScheme::LightShade, 0.2);
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QLinearGradient gradient(QPointF(0.0, 0.0), QPointF(0.0, height()));
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gradient.setColorAt(0.0, bg1Color);
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gradient.setColorAt(1.0, bg2Color);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setOpacity(d->mOpacity);
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QPainterPath path = PaintUtils::roundedRectangle(rect(), RADIUS);
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painter.fillPath(path, gradient);
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painter.setPen(palette().color(QPalette::HighlightedText));
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painter.drawText(rect().adjusted(HMARGIN, 0, -HMARGIN, 0), 0 /* flags */, d->mText);
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}
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} // namespace
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