294 lines
8.3 KiB
C++
294 lines
8.3 KiB
C++
/**************************************************************************
|
|
* Copyright 2007 by Dan Meltzer <hydrogen@notyetimplemented.com> *
|
|
* Copyright (C) 2008 by Alexis Ménard <darktears31@gmail.com> *
|
|
* *
|
|
* 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 "tooltipmanager.h"
|
|
|
|
//Qt
|
|
#include <QLabel>
|
|
#include <QTimer>
|
|
#include <QGridLayout>
|
|
#include <QGraphicsView>
|
|
#include <QDesktopWidget>
|
|
|
|
//KDE
|
|
#include <KWindowSystem>
|
|
|
|
//Plasma
|
|
#include <plasma/theme.h>
|
|
#include <plasma/panelsvg.h>
|
|
#include <plasma/tooltip_p.h>
|
|
#include <plasma/applet.h>
|
|
#include <plasma/view.h>
|
|
#include <plasma/containment.h>
|
|
namespace Plasma
|
|
{
|
|
class ToolTipManagerPrivate
|
|
{
|
|
public :
|
|
ToolTipManagerPrivate()
|
|
: showTimer(0)
|
|
, hideTimer(0)
|
|
, currentWidget(0)
|
|
{
|
|
|
|
}
|
|
~ToolTipManagerPrivate()
|
|
{
|
|
|
|
}
|
|
|
|
void showToolTip();
|
|
void resetShownState();
|
|
|
|
QGraphicsWidget *currentWidget;
|
|
bool isShown;
|
|
bool delayedHide;
|
|
QTimer *showTimer;
|
|
QTimer *hideTimer;
|
|
QMap<QGraphicsWidget *, ToolTip *> tooltips;
|
|
};
|
|
|
|
//TOOLTIP IMPLEMENTATION
|
|
class ToolTipManagerSingleton
|
|
{
|
|
public:
|
|
ToolTipManagerSingleton()
|
|
{
|
|
}
|
|
ToolTipManager self;
|
|
};
|
|
K_GLOBAL_STATIC( ToolTipManagerSingleton, privateInstance )
|
|
|
|
ToolTipManager *ToolTipManager::self()
|
|
{
|
|
return &privateInstance->self;
|
|
}
|
|
|
|
ToolTipManager::ToolTipManager(QObject* parent)
|
|
: QObject(parent),
|
|
d(new ToolTipManagerPrivate)
|
|
{
|
|
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(themeUpdated()));
|
|
themeUpdated();
|
|
|
|
d->showTimer = new QTimer(this);
|
|
d->showTimer->setSingleShot(true);
|
|
d->hideTimer = new QTimer(this);
|
|
d->hideTimer->setSingleShot(true);
|
|
|
|
connect(d->showTimer, SIGNAL(timeout()), SLOT(showToolTip()));
|
|
connect(d->hideTimer, SIGNAL(timeout()), SLOT(resetShownState()));
|
|
}
|
|
|
|
ToolTipManager::~ToolTipManager()
|
|
{
|
|
if (d) delete d;
|
|
}
|
|
|
|
void ToolTipManager::showToolTip(QGraphicsWidget *widget)
|
|
{
|
|
ToolTip * tooltip = d->tooltips.value(widget);
|
|
if (tooltip) {
|
|
if (d->currentWidget) {
|
|
hideToolTip(d->currentWidget);
|
|
}
|
|
d->hideTimer->stop();
|
|
d->delayedHide = false;
|
|
d->showTimer->stop();
|
|
d->currentWidget = widget;
|
|
if (d->isShown) {
|
|
// small delay to prevent unnecessary showing when the mouse is moving quickly across items
|
|
// which can be too much for less powerful CPUs to keep up with
|
|
d->showTimer->start(200);
|
|
} else {
|
|
d->showTimer->start(500);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ToolTipManager::isVisible(QGraphicsWidget *widget)
|
|
{
|
|
ToolTip * tooltip = d->tooltips.value(widget);
|
|
if (tooltip) {
|
|
return tooltip->isVisible();
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void ToolTipManager::delayedHideToolTip()
|
|
{
|
|
d->showTimer->stop(); // stop the timer to show the tooltip
|
|
d->delayedHide = true;
|
|
d->hideTimer->start(250);
|
|
}
|
|
|
|
void ToolTipManager::hideToolTip(QGraphicsWidget *widget)
|
|
{
|
|
ToolTip * tooltip = d->tooltips.value(widget);
|
|
if (tooltip) {
|
|
d->showTimer->stop(); // stop the timer to show the tooltip
|
|
d->delayedHide = false;
|
|
d->currentWidget = 0;
|
|
tooltip->hide();
|
|
}
|
|
}
|
|
|
|
void ToolTipManager::registerToolTipData(QGraphicsWidget *widget,const ToolTipManager::ToolTipData &data)
|
|
{
|
|
if (!d->tooltips.contains(widget)) {
|
|
//the tooltip is not registered we add it in our map of tooltips
|
|
d->tooltips.insert(widget,new ToolTip());
|
|
ToolTip * tooltip = d->tooltips.value(widget);
|
|
tooltip->setData(data);
|
|
tooltip->updateTheme();
|
|
}
|
|
}
|
|
|
|
void ToolTipManager::unregisterToolTip(QGraphicsWidget *widget)
|
|
{
|
|
if (d->tooltips.contains(widget)) {
|
|
ToolTip * tooltip = d->tooltips.take(widget);
|
|
if (tooltip) {
|
|
delete tooltip;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ToolTipManager::updateToolTipData(QGraphicsWidget *widget,const ToolTipData &data)
|
|
{
|
|
if (!d->tooltips.contains(widget)) {
|
|
return;
|
|
}
|
|
else {
|
|
ToolTip * tooltip = d->tooltips.value(widget);
|
|
tooltip->setData(data);
|
|
}
|
|
}
|
|
|
|
bool ToolTipManager::hasToolTip(QGraphicsWidget *widget)
|
|
{
|
|
return d->tooltips.contains(widget);
|
|
}
|
|
|
|
void ToolTipManager::themeUpdated()
|
|
{
|
|
QMapIterator<QGraphicsWidget*, ToolTip *> iterator(d->tooltips);
|
|
while (iterator.hasNext()) {
|
|
iterator.next();
|
|
iterator.value()->updateTheme();
|
|
}
|
|
}
|
|
|
|
void ToolTipManagerPrivate::resetShownState()
|
|
{
|
|
if (currentWidget) {
|
|
ToolTip * tooltip = tooltips.value(currentWidget);
|
|
if ((tooltip && !tooltip->isVisible()) || delayedHide) {
|
|
//One might have moused out and back in again
|
|
delayedHide = false;
|
|
isShown = false;
|
|
tooltip->hide();
|
|
currentWidget = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ToolTipManagerPrivate::showToolTip()
|
|
{
|
|
if (!currentWidget) {
|
|
return;
|
|
}
|
|
|
|
ToolTip * tooltip = tooltips.value(currentWidget);
|
|
if (tooltip) {
|
|
tooltip->prepareShowing();
|
|
tooltip->move(ToolTipManager::popupPosition(currentWidget,tooltip->size()));
|
|
isShown = true; //ToolTip is visible
|
|
}
|
|
}
|
|
|
|
QPoint ToolTipManager::popupPosition(const QGraphicsItem * item, const QSize &s)
|
|
{
|
|
const Plasma::Applet * applet = dynamic_cast<const Applet *>(item);
|
|
if (!applet) {
|
|
const QGraphicsItem * currentItem = item->parentItem();
|
|
while(currentItem->parentItem() && !dynamic_cast<const Applet *>(currentItem))
|
|
{
|
|
currentItem=currentItem->parentItem();
|
|
}
|
|
applet = dynamic_cast<const Applet *>(currentItem);
|
|
if (!applet) return QPoint(0,0);
|
|
}
|
|
QGraphicsView *v = applet->view();
|
|
Q_ASSERT(v);
|
|
|
|
QPoint pos = v->mapFromScene(item->scenePos());
|
|
pos = v->mapToGlobal(pos);
|
|
//kDebug() << "==> position is" << scenePos() << v->mapFromScene(scenePos()) << pos;
|
|
Plasma::View *pv = dynamic_cast<Plasma::View *>(v);
|
|
|
|
Plasma::Location loc = Floating;
|
|
if (pv) {
|
|
loc = pv->containment()->location();
|
|
}
|
|
|
|
switch (loc) {
|
|
case BottomEdge:
|
|
pos = QPoint(pos.x(), pos.y() - s.height());
|
|
break;
|
|
case TopEdge:
|
|
pos = QPoint(pos.x(), pos.y() + (int)item->boundingRect().size().height());
|
|
break;
|
|
case LeftEdge:
|
|
pos = QPoint(pos.x() + (int)item->boundingRect().size().width(), pos.y());
|
|
break;
|
|
case RightEdge:
|
|
pos = QPoint(pos.x() - s.width(), pos.y());
|
|
break;
|
|
default:
|
|
if (pos.y() - s.height() > 0) {
|
|
pos = QPoint(pos.x(), pos.y() - s.height());
|
|
} else {
|
|
pos = QPoint(pos.x(), pos.y() + (int)item->boundingRect().size().height());
|
|
}
|
|
}
|
|
|
|
//are we out of screen?
|
|
|
|
QRect screenRect = QApplication::desktop()->screenGeometry(pv ? pv->containment()->screen() : -1);
|
|
//kDebug() << "==> rect for" << (pv ? pv->containment()->screen() : -1) << "is" << screenRect;
|
|
|
|
if (pos.rx() + s.width() > screenRect.right()) {
|
|
pos.rx() -= ((pos.rx() + s.width()) - screenRect.right());
|
|
}
|
|
|
|
if (pos.ry() + s.height() > screenRect.bottom()) {
|
|
pos.ry() -= ((pos.ry() + s.height()) - screenRect.bottom());
|
|
}
|
|
pos.rx() = qMax(0, pos.rx());
|
|
|
|
return pos;
|
|
}
|
|
|
|
//PRIVATE CLASS IMPLEMENTATION
|
|
}
|
|
|
|
#include "tooltipmanager.moc" |