File indexing completed on 2024-05-12 04:19:51

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