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Diffstat (limited to 'src/k3btooltip.cpp')
| -rw-r--r-- | src/k3btooltip.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/k3btooltip.cpp b/src/k3btooltip.cpp new file mode 100644 index 0000000..570c23b --- /dev/null +++ b/src/k3btooltip.cpp @@ -0,0 +1,195 @@ +/* + * + * $Id: sourceheader 380067 2005-01-19 13:03:46Z trueg $ + * Copyright (C) 2005 Sebastian Trueg <trueg@k3b.org> + * + * This file is part of the K3b project. + * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.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. + * See the file "COPYING" for the exact licensing terms. + */ + +#include "k3btooltip.h" +#include "k3bwidgetshoweffect.h" + +#include <k3bthememanager.h> +#include <k3bapplication.h> + +#include <qtimer.h> +#include <qapplication.h> +#include <qlabel.h> + +#include <kdebug.h> +#include <fixx11h.h> + + +K3bToolTip::K3bToolTip( QWidget* widget ) + : QObject( widget ), + m_parentWidget( widget ), + m_currentTip( 0 ), + m_tipTimer( new QTimer( this ) ), + m_tipTimeout( 700 ) +{ + m_parentWidget->installEventFilter( this ); + connect( m_tipTimer, SIGNAL(timeout()), + this, SLOT(slotCheckShowTip()) ); +} + + +K3bToolTip::~K3bToolTip() +{ +} + + +void K3bToolTip::tip( const QRect& rect, const QString& text, int effect ) +{ + QLabel* label = new QLabel( text, parentWidget() ); + label->setMargin( 6 ); + if( K3bTheme* theme = k3bappcore->themeManager()->currentTheme() ) { + label->setPaletteBackgroundColor( theme->backgroundColor() ); + label->setPaletteForegroundColor( theme->foregroundColor() ); + } + tip( rect, label, (K3bWidgetShowEffect::Effect)effect ); +} + + +void K3bToolTip::tip( const QRect& rect, const QPixmap& pix, int effect ) +{ + QLabel* label = new QLabel( parentWidget() ); + label->setMargin( 6 ); + if( K3bTheme* theme = k3bappcore->themeManager()->currentTheme() ) { + label->setPaletteBackgroundColor( theme->backgroundColor() ); + label->setPaletteForegroundColor( theme->foregroundColor() ); + } + label->setPixmap( pix ); + tip( rect, label, (K3bWidgetShowEffect::Effect)effect ); +} + + +void K3bToolTip::tip( const QRect& rect, QWidget* w, int effect ) +{ + // stop the timer + m_tipTimer->stop(); + + // hide any previous tip + hideTip(); + + // which screen are we on? + int scr; + if( QApplication::desktop()->isVirtualDesktop() ) + scr = QApplication::desktop()->screenNumber( m_parentWidget->mapToGlobal( m_lastMousePos ) ); + else + scr = QApplication::desktop()->screenNumber( m_parentWidget ); + + // make sure the widget is displayed correcly + w->reparent( QApplication::desktop()->screen( scr ), + WStyle_StaysOnTop | WStyle_Customize | WStyle_NoBorder | WStyle_Tool | WX11BypassWM, + QPoint( 0, 0 ), false ); + w->polish(); + w->adjustSize(); + + // positioning code from qtooltip.cpp + QRect screen = QApplication::desktop()->screenGeometry( scr ); + + // FIXME: why (2,16) and (4,24) below? Why not use the cursors' size? + + QPoint p = m_parentWidget->mapToGlobal( m_lastMousePos ) + QPoint( 2, 16 ); + + if( p.x() + w->width() > screen.x() + screen.width() ) + p.rx() -= 4 + w->width(); + if( p.y() + w->height() > screen.y() + screen.height() ) + p.ry() -= 24 + w->height(); + + if( p.y() < screen.y() ) + p.setY( screen.y() ); + if( p.x() + w->width() > screen.x() + screen.width() ) + p.setX( screen.x() + screen.width() - w->width() ); + if( p.x() < screen.x() ) + p.setX( screen.x() ); + if( p.y() + w->height() > screen.y() + screen.height() ) + p.setY( screen.y() + screen.height() - w->height() ); + + m_currentTip = w; + m_currentTipRect = rect; + w->move( p ); + if( effect ) + K3bWidgetShowEffect::showWidget( w, (K3bWidgetShowEffect::Effect)effect ); + else + w->show(); + w->raise(); +} + + +void K3bToolTip::hideTip() +{ + // just remove the tip + delete m_currentTip; + m_currentTip = 0; +} + + +bool K3bToolTip::eventFilter( QObject* o, QEvent* e ) +{ + if( o == parentWidget() ) { + switch( e->type() ) { + case QEvent::MouseButtonPress: + case QEvent::MouseButtonRelease: + case QEvent::MouseButtonDblClick: + case QEvent::KeyPress: + case QEvent::KeyRelease: + // input - turn off tool tip mode + hideTip(); + m_tipTimer->stop(); + break; + + case QEvent::MouseMove: { + QMouseEvent* m = (QMouseEvent*)e; + m_lastMousePos = m_parentWidget->mapFromGlobal( m->globalPos() ); + + m_tipTimer->stop(); + if( m_currentTip ) { + // see if we have to hide it + if( !m_currentTipRect.contains( m_lastMousePos ) ) { + hideTip(); + + // in case we moved the mouse from one tip area to the next without leaving + // the widget just popup the new tip immedeately + m_tipTimer->start( 0, true ); + } + } + + // if we are not showing a tip currently start the tip timer + else + m_tipTimer->start( m_tipTimeout, true ); + + break; + } + + case QEvent::Leave: + case QEvent::Hide: + case QEvent::Destroy: + case QEvent::FocusOut: + hideTip(); + m_tipTimer->stop(); + break; + + default: + break; + } + } + + return false; +} + + +void K3bToolTip::slotCheckShowTip() +{ + maybeTip( m_lastMousePos ); +} + + +#include "k3btooltip.moc" |