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/****************************************************************************
* Copyright (C) 2009 by Björn Ruberg <bjoern@ruberg-wegener.de> *
* *
* 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, Boston, MA 02110-1301 USA . *
***************************************************************************/
#include "tooltip.h"
#include <QPainter>
#include <QPaintEvent>
#include <QPalette>
#include <QLabel>
#include <QHBoxLayout>
#include <plasma/theme.h>
Tooltip::Tooltip(const QString &text)
: QWidget()
{
setAttribute(Qt::WA_TranslucentBackground);
setAttribute(Qt::WA_TransparentForMouseEvents);
setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint);
setColors();
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(setColors()));
frame = new Plasma::FrameSvg(this);
frame->setEnabledBorders(Plasma::FrameSvg::AllBorders);
frame->setImagePath("widgets/tooltip");
frame->resizeFrame(size());
connect(frame, SIGNAL(repaintNeeded()), this, SLOT(update()));
label = new QLabel(text, this);
label->setAlignment(Qt::AlignCenter);
m_layout = new QHBoxLayout(this);
m_layout->addWidget(label);
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(updateMask()));
}
Tooltip::~Tooltip()
{
}
void Tooltip::setColors()
{
QPalette pal = palette();
pal.setColor(backgroundRole(), Qt::transparent);
pal.setColor(QPalette::WindowText, Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor));
setPalette(pal);
}
void Tooltip::setText(QString text)
{
label->setText(text);
}
void Tooltip::resizeEvent(QResizeEvent *event)
{
QSize size = event->size();
QWidget::resize(size);
setFont(QFont("Helvetica", qMin(size.height(), size.width()) / 3));
frame->resizeFrame(size);
updateMask();
}
void Tooltip::showEvent(QShowEvent * event)
{
Q_UNUSED(event);
Plasma::WindowEffects::overrideShadow(winId(), true);
}
void Tooltip::updateMask()
{
const bool translucency = Plasma::Theme::defaultTheme()->windowTranslucencyEnabled();
Plasma::WindowEffects::enableBlurBehind(winId(), translucency,
translucency ? frame->mask() : QRegion());
if (translucency) {
clearMask();
} else {
setMask(frame->mask());
}
}
void Tooltip::paintEvent(QPaintEvent * event)
{
QPainter painter(this);
painter.setRenderHint(QPainter::SmoothPixmapTransform);
painter.setRenderHint(QPainter::Antialiasing);
//painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.fillRect(rect(), Qt::transparent);
frame->paintFrame(&painter, event->rect());
}
#include "tooltip.moc"
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