Page MenuHomePhabricator (Chris)
Files F630078

tooltip.cpp
No OneTemporary
Actions

Authored By
Unknown
Size
6 KB
Referenced Files
None
Subscribers
None

tooltip.cpp
View Options

/*
Copyright (c) 2006 Gábor Lehel <illissius@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <qapplication.h>
#include <qcursor.h>
#include <qpainter.h>
#include <qpixmap.h>
#include <qsimplerichtext.h>
#include <kglobal.h>
#include "debug.h"
#include "tooltip.h"
class Amarok::ToolTip::Manager: public QObject
{
public:
Manager( QObject *parent ): QObject( parent ) { qApp->installEventFilter( this ); }
virtual ~Manager()
{
for( int n = Amarok::ToolTip::s_tooltips.count() - 1; n >= 0; --n )
delete Amarok::ToolTip::s_tooltips[n];
}
bool eventFilter( QObject*, QEvent *e )
{
switch ( e->type() )
{
case QEvent::KeyPress:
case QEvent::KeyRelease:
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
//case QEvent::MouseMove:
case QEvent::Wheel:
ToolTip::hideTips();
break;
case QEvent::FocusIn:
case QEvent::Enter:
case QEvent::Leave:
case QEvent::FocusOut:
if( !dynamic_cast<Amarok::ToolTip*>( qApp->widgetAt( QCursor::pos(), true ) ) )
Amarok::ToolTip::hideTips();
default: break;
}
return false;
}
};
Amarok::ToolTip::Manager* Amarok::ToolTip::s_manager = 0;
QPoint Amarok::ToolTip::s_pos;
QRect Amarok::ToolTip::s_rect;
QString Amarok::ToolTip::s_text;
QValueList<Amarok::ToolTip*> Amarok::ToolTip::s_tooltips;
int Amarok::ToolTip::s_hack = 0;
void Amarok::ToolTip::add( ToolTipClient *client, QWidget *parent ) //static
{
if( !s_manager )
s_manager = new Amarok::ToolTip::Manager( qApp );
new ToolTip( client, parent );
}
void Amarok::ToolTip::remove( QWidget *widget ) //static
{
for( int i = s_tooltips.count() - 1; i >= 0; --i )
if( s_tooltips[i]->QToolTip::parentWidget() == widget )
delete s_tooltips[i];
}
void Amarok::ToolTip::hideTips() //static
{
for( int i = 0, n = s_tooltips.count(); i < n; ++i )
s_tooltips[i]->hideTip();
QToolTip::hide();
}
QString Amarok::ToolTip::textFor( QWidget *widget, const QPoint &pos ) //static
{
for( int i = 0, n = s_tooltips.count(); i < n; ++i )
if( s_tooltips[i]->QToolTip::parentWidget() == widget )
return s_tooltips[i]->m_client->toolTipText( widget, pos ).first;
return QToolTip::textFor( widget, pos );
}
void Amarok::ToolTip::updateTip() //static
{
for( int i = 0, n = s_tooltips.count(); i < n; ++i )
if( s_tooltips[i]->isVisible() )
{
QWidget* const w = s_tooltips[i]->QToolTip::parentWidget();
QPair<QString, QRect> p = s_tooltips[i]->m_client->toolTipText( w, w->mapFromGlobal( s_pos ) );
QString prev = s_text;
if( prev != p.first )
{
s_text = p.first;
s_rect = p.second;
s_tooltips[i]->showTip();
}
break;
}
}
Amarok::ToolTip::ToolTip( ToolTipClient *client, QWidget *parent )
: QFrame( 0, 0, WStyle_Customize | WStyle_NoBorder | WStyle_Tool | WStyle_StaysOnTop | WX11BypassWM | WNoAutoErase ),
QToolTip( parent ),
m_client( client )
{
s_tooltips.append( this );
QFrame::setPalette( QToolTip::palette() );
connect( &m_timer, SIGNAL( timeout() ), this, SLOT( hideTip() ) );
}
Amarok::ToolTip::~ToolTip()
{
s_tooltips.remove( this );
}
void Amarok::ToolTip::maybeTip( const QPoint &pos )
{
s_pos = QToolTip::parentWidget()->mapToGlobal( pos );
QString prev = s_text;
QPair<QString, QRect> p = m_client->toolTipText( QToolTip::parentWidget(), pos );
s_text = p.first;
s_rect = p.second;
if( QToolTip::parentWidget() && !s_text.isEmpty() )
{
if( s_text != prev )
hideTips();
showTip();
}
else
hideTips();
}
void Amarok::ToolTip::showTip()
{
m_timer.start( 15000, true );
if( !isVisible() || sizeHint() != size() )
{
resize( sizeHint() );
position();
}
if( !isVisible() )
show();
else
update();
}
void Amarok::ToolTip::hideTip()
{
if( !isVisible() )
return;
QFrame::hide();
QToolTip::parentWidget()->update();
m_timer.stop();
s_hack = 0;
}
void Amarok::ToolTip::drawContents( QPainter *painter )
{
QPixmap buf( width(), height() );
QPainter p( &buf );
buf.fill( colorGroup().background() );
p.setPen( colorGroup().foreground() );
p.drawRect( buf.rect() );
QSimpleRichText text( s_text, QToolTip::parentWidget()->font() );
text.setWidth( width() );
p.translate( 0, height() / 2 - text.height() / 2);
QPoint pos = s_rect.isNull() ? QPoint(2, -1)
: s_hack == 1 ? QPoint(4, -2)
: QPoint(2, -2); //HACK positioning
p.setFont( QToolTip::parentWidget()->font() );
text.draw( &p, pos.x(), pos.y(), rect(), colorGroup() );
painter->drawPixmap( 0, 0, buf );
}
QSize Amarok::ToolTip::sizeHint() const
{
if( !s_rect.isNull() )
return s_rect.size();
else
{
QSimpleRichText text( s_text, QToolTip::parentWidget()->font() );
text.setWidth( 500 ); //is this reasonable?
return QSize( text.widthUsed() - 2, text.height() );
}
}
void Amarok::ToolTip::position()
{
const QRect drect = QApplication::desktop()->availableGeometry( QToolTip::parentWidget() );
const QSize size = sizeHint();
const int width = size.width(), height = size.height();
QPoint pos;
if( !s_rect.isNull() )
{
pos = s_rect.topLeft();
if( pos.y() + height > drect.bottom() )
pos.setY( kMax( drect.top(), drect.bottom() - height ) );
if( pos.x() + width > drect.right() )
pos.setX( kMax( drect.left(), drect.right() - width ) );
}
else
{
const QRect r = QRect( QToolTip::parentWidget()->mapToGlobal( QToolTip::parentWidget()->pos() ), QToolTip::parentWidget()->size() );
pos = r.bottomRight();
if( pos.y() + height > drect.bottom() )
pos.setY( kMax( drect.top(), r.top() - height ) );
if( pos.x() + width > drect.right() )
pos.setX( kMax( drect.left(), r.left() - width ) );
}
move( pos );
}
#include "tooltip.moc"

File Metadata

Mime Type
text/x-c++
Expires
Sun, Nov 15, 8:35 AM (15 h, 49 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
152203
Default Alt Text
tooltip.cpp (6 KB)

Event Timeline