138 lines
3.4 KiB
C++
138 lines
3.4 KiB
C++
/*
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* Copyright 2007 by Dan Meltzer <hydrogen@notyetimplemented.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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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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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "tooltip_p.h"
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QPixmap>
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#include <QTimer>
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#include <kglobal.h>
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namespace Plasma {
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class ToolTip::Private
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{
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public:
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Private()
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: label(0)
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, imageLabel(0)
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, isShown(false)
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, showTimer(0)
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, hideTimer(0)
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{ }
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QLabel *label;
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QLabel *imageLabel;
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bool isShown;
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QTimer *showTimer;
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QTimer *hideTimer;
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};
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class ToolTipSingleton
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{
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public:
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ToolTip self;
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};
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K_GLOBAL_STATIC( ToolTipSingleton, privateInstance )
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ToolTip *ToolTip::instance()
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{
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return &privateInstance->self;
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}
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void ToolTip::show(const QPoint &location, const Plasma::ToolTipData &data)
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{
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setData(data);
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move(location.x(), location.y() - sizeHint().height());
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if (d->isShown) {
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// Don't delay if the tooltip is already shown(i.e. moving from one task to another)
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// Qt doesn't seem to like visible tooltips moving though, so hide it and then
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// immediately show it again
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setVisible(false);
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d->showTimer->start(0);
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}
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else {
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d->showTimer->start(1000); //Shown after a one second delay.
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}
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}
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void ToolTip::hide()
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{
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d->showTimer->stop(); //Mouse out, stop the timer to show the tooltip
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if (!isVisible()) {
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d->isShown = false;
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}
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setVisible(false);
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d->hideTimer->start(500); //500 ms delay before we are officially "gone" to allow for the time to move between widgets
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}
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//PRIVATE FUNCTIONS
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void ToolTip::slotShowToolTip()
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{
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d->isShown = true; //ToolTip is visible
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setVisible(true);
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}
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void ToolTip::slotResetTimer()
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{
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if (!isVisible()) { //One might have moused out and back in again
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d->isShown = false;
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}
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}
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ToolTip::ToolTip()
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: QWidget(0)
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, d( new Private )
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{
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setWindowFlags(Qt::ToolTip);
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QHBoxLayout *l = new QHBoxLayout;
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d->label = new QLabel;
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d->label->setWordWrap(true);
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d->imageLabel = new QLabel;
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d->imageLabel->setAlignment(Qt::AlignTop | Qt::AlignLeft);
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l->addWidget(d->imageLabel);
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l->addWidget(d->label);
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setLayout(l);
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d->showTimer = new QTimer(this);
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d->showTimer->setSingleShot(true);
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d->hideTimer = new QTimer(this);
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d->hideTimer->setSingleShot(true);
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connect(d->showTimer, SIGNAL(timeout()), SLOT(slotShowToolTip()));
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connect(d->hideTimer, SIGNAL(timeout()), SLOT(slotResetTimer()));
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}
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void ToolTip::setData(const Plasma::ToolTipData &data)
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{
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d->label->setText("<qt><h3>" + data.mainText + "</h3><p>" +
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data.subText + "</p></qt>");
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d->imageLabel->setPixmap(data.image);
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}
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ToolTip::~ToolTip()
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{
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delete d;
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}
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}
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#include "tooltip_p.moc"
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