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k3b/libk3b/tools/k3btoolbutton.cpp

110 lines
2.4 KiB

/*
*
* $Id: sourceheader 511311 2006-02-19 14:51:05Z trueg $
* Copyright (C) 2006 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 "k3btoolbutton.h"
#include <qstyle.h>
#include <qpainter.h>
#include <qevent.h>
#include <kglobalsettings.h>
#include <kapplication.h>
class K3bToolButton::Private
{
public:
QPoint mousePressPos;
bool instantMenu;
};
K3bToolButton::K3bToolButton( QWidget* parent )
: QToolButton( parent )
{
d = new Private;
d->instantMenu = false;
installEventFilter(this);
}
K3bToolButton::~K3bToolButton()
{
delete d;
}
void K3bToolButton::setInstantMenu( bool b )
{
d->instantMenu = b;
}
void K3bToolButton::drawButton( QPainter* p )
{
QToolButton::drawButton( p );
//
// code below comes from ktoolbarbutton.cpp from the kdelibs sources
// see the file for copyright information
//
if( QToolButton::popup() ) {
QStyle::SFlags arrowFlags = QStyle::Style_Default;
if( isDown() )
arrowFlags |= QStyle::Style_Down;
if( isEnabled() )
arrowFlags |= QStyle::Style_Enabled;
style().drawPrimitive(QStyle::PE_ArrowDown, p,
QRect(width()-7, height()-7, 7, 7), colorGroup(),
arrowFlags, QStyleOption() );
}
}
bool K3bToolButton::eventFilter( QObject* o, QEvent* ev )
{
if( dynamic_cast<K3bToolButton*>(o) == this ) {
// Popup the menu when the left mousebutton is pressed and the mouse
// is moved by a small distance.
if( QToolButton::popup() ) {
if( ev->type() == QEvent::MouseButtonPress ) {
QMouseEvent* mev = static_cast<QMouseEvent*>(ev);
if( d->instantMenu ) {
setDown(true);
openPopup();
return true;
}
else {
d->mousePressPos = mev->pos();
}
}
else if( ev->type() == QEvent::MouseMove ) {
QMouseEvent* mev = static_cast<QMouseEvent*>(ev);
if( !d->instantMenu &&
( mev->pos() - d->mousePressPos).manhattanLength() > KGlobalSettings::dndEventDelay() ) {
openPopup();
return true;
}
}
}
}
return QToolButton::eventFilter( o, ev );
}