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tqt3/src/widgets/qspinwidget.cpp

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/****************************************************************************
**
** Implementation of TQSpinWidget class
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the widgets module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include "qrangecontrol.h"
#ifndef QT_NO_SPINWIDGET
#include "qrect.h"
#include "qtimer.h"
#include "qstyle.h"
#include "qpainter.h"
class TQSpinWidgetPrivate
{
public:
TQSpinWidgetPrivate()
: upEnabled( TRUE ),
downEnabled( TRUE ),
theButton( 0 ),
buttonDown( 0 ),
timerUp( 0 ),
bsyms( TQSpinWidget::UpDownArrows ),
ed ( 0 ) {}
uint upEnabled :1;
uint downEnabled :1;
uint theButton :2;
uint buttonDown :2;
uint timerUp : 1;
TQRect up;
TQRect down;
TQTimer auRepTimer;
TQSpinWidget::ButtonSymbols bsyms;
TQWidget *ed;
void startTimer( int msec ) { auRepTimer.start( msec, TRUE ); }
void startTimer( bool up, int msec ) { timerUp = up; startTimer( msec ); }
void stopTimer() { auRepTimer.stop(); }
};
/*!
\class TQSpinWidget qspinwidget.h
\brief The TQSpinWidget class is an internal range control related class.
\internal
Constructs an empty range control widget with parent \a parent
called \a name.
*/
TQSpinWidget::TQSpinWidget( TQWidget* parent, const char* name )
: TQWidget( parent, name )
{
d = new TQSpinWidgetPrivate();
connect( &d->auRepTimer, SIGNAL( timeout() ), this, SLOT( timerDone() ) );
setFocusPolicy( StrongFocus );
arrange();
updateDisplay();
}
/*! Destroys the object and frees any allocated resources.
*/
TQSpinWidget::~TQSpinWidget()
{
delete d;
}
/*! */
TQWidget * TQSpinWidget::editWidget()
{
return d->ed;
}
/*!
Sets the editing widget to \a w.
*/
void TQSpinWidget::setEditWidget( TQWidget * w )
{
if ( w ) {
if (w->parentWidget() != this)
w->reparent( this, TQPoint( 0, 0 ) );
setFocusProxy( w );
}
d->ed = w;
arrange();
updateDisplay();
}
/*! \reimp
*/
void TQSpinWidget::mousePressEvent( TQMouseEvent *e )
{
if ( e->button() != LeftButton ) {
d->stopTimer();
d->buttonDown = 0;
d->theButton = 0;
repaint( d->down.unite( d->up ), FALSE );
return;
}
uint oldButtonDown = d->buttonDown;
if ( d->down.contains( e->pos() ) && d->downEnabled )
d->buttonDown = 1;
else if ( d->up.contains( e->pos() ) && d->upEnabled )
d->buttonDown = 2;
else
d->buttonDown = 0;
d->theButton = d->buttonDown;
if ( oldButtonDown != d->buttonDown ) {
if ( !d->buttonDown ) {
repaint( d->down.unite( d->up ), FALSE );
} else if ( d->buttonDown & 1 ) {
repaint( d->down, FALSE );
stepDown();
d->startTimer( FALSE, 300 );
} else if ( d->buttonDown & 2 ) {
repaint( d->up, FALSE );
stepUp();
d->startTimer( TRUE, 300 );
}
}
}
/*!
*/
void TQSpinWidget::arrange()
{
d->up = TQStyle::visualRect( style().querySubControlMetrics( TQStyle::CC_SpinWidget, this,
TQStyle::SC_SpinWidgetUp ), this );
d->down = TQStyle::visualRect( style().querySubControlMetrics( TQStyle::CC_SpinWidget, this,
TQStyle::SC_SpinWidgetDown ), this );
if ( d->ed ) {
TQRect r = TQStyle::visualRect( style().querySubControlMetrics( TQStyle::CC_SpinWidget, this,
TQStyle::SC_SpinWidgetEditField ), this );
d->ed->setGeometry( r );
}
}
/*!
*/
void TQSpinWidget::stepUp()
{
emit stepUpPressed();
}
void TQSpinWidget::resizeEvent( TQResizeEvent* )
{
arrange();
}
/*!
*/
void TQSpinWidget::stepDown()
{
emit stepDownPressed();
}
void TQSpinWidget::timerDone()
{
// we use a double timer to make it possible for users to do
// something with 0-timer on valueChanged.
TQTimer::singleShot( 1, this, SLOT( timerDoneEx() ) );
}
void TQSpinWidget::timerDoneEx()
{
if ( !d->buttonDown )
return;
if ( d->timerUp )
stepUp();
else
stepDown();
d->startTimer( 100 );
}
void TQSpinWidget::windowActivationChange( bool oldActive )
{
//was active, but lost focus
if ( oldActive && d->buttonDown ) {
d->stopTimer();
d->buttonDown = 0;
d->theButton = 0;
}
TQWidget::windowActivationChange( oldActive );
}
/*!
The event is passed in \a e.
*/
void TQSpinWidget::mouseReleaseEvent( TQMouseEvent *e )
{
if ( e->button() != LeftButton )
return;
uint oldButtonDown = d->theButton;
d->theButton = 0;
if ( oldButtonDown != d->theButton ) {
if ( oldButtonDown & 1 )
repaint( d->down, FALSE );
else if ( oldButtonDown & 2 )
repaint( d->up, FALSE );
}
d->stopTimer();
d->buttonDown = 0;
}
/*!
The event is passed in \a e.
*/
void TQSpinWidget::mouseMoveEvent( TQMouseEvent *e )
{
if ( !(e->state() & LeftButton ) )
return;
uint oldButtonDown = d->theButton;
if ( oldButtonDown & 1 && !d->down.contains( e->pos() ) ) {
d->stopTimer();
d->theButton = 0;
repaint( d->down, FALSE );
} else if ( oldButtonDown & 2 && !d->up.contains( e->pos() ) ) {
d->stopTimer();
d->theButton = 0;
repaint( d->up, FALSE );
} else if ( !oldButtonDown && d->up.contains( e->pos() ) && d->buttonDown & 2 ) {
d->startTimer( 500 );
d->theButton = 2;
repaint( d->up, FALSE );
} else if ( !oldButtonDown && d->down.contains( e->pos() ) && d->buttonDown & 1 ) {
d->startTimer( 500 );
d->theButton = 1;
repaint( d->down, FALSE );
}
}
/*!
The event is passed in \a e.
*/
#ifndef QT_NO_WHEELEVENT
void TQSpinWidget::wheelEvent( TQWheelEvent *e )
{
e->accept();
static float offset = 0;
static TQSpinWidget* offset_owner = 0;
if ( offset_owner != this ) {
offset_owner = this;
offset = 0;
}
offset += -e->delta()/120;
if ( TQABS( offset ) < 1 )
return;
int ioff = int(offset);
int i;
for( i=0; i < TQABS( ioff ); i++ )
offset > 0 ? stepDown() : stepUp();
offset -= ioff;
}
#endif
/*!
*/
void TQSpinWidget::paintEvent( TQPaintEvent * )
{
TQPainter p( this );
TQStyle::SFlags flags = TQStyle::Style_Default;
if (isEnabled())
flags |= TQStyle::Style_Enabled;
if (hasFocus() || focusProxy() && focusProxy()->hasFocus())
flags |= TQStyle::Style_HasFocus;
TQStyle::SCFlags active;
if ( d->theButton & 1 )
active = TQStyle::SC_SpinWidgetDown;
else if ( d->theButton & 2 )
active = TQStyle::SC_SpinWidgetUp;
else
active = TQStyle::SC_None;
TQRect fr = TQStyle::visualRect(
style().querySubControlMetrics( TQStyle::CC_SpinWidget, this,
TQStyle::SC_SpinWidgetFrame ), this );
style().drawComplexControl( TQStyle::CC_SpinWidget, &p, this,
fr, colorGroup(),
flags,
(uint)TQStyle::SC_All,
active );
}
/*!
The previous style is passed in \a old.
*/
void TQSpinWidget::styleChange( TQStyle& old )
{
arrange();
TQWidget::styleChange( old );
}
/*!
*/
TQRect TQSpinWidget::upRect() const
{
return d->up;
}
/*!
*/
TQRect TQSpinWidget::downRect() const
{
return d->down;
}
/*!
*/
void TQSpinWidget::updateDisplay()
{
if ( !isEnabled() ) {
d->upEnabled = FALSE;
d->downEnabled = FALSE;
}
if ( d->theButton & 1 && ( d->downEnabled ) == 0 ) {
d->theButton &= ~1;
d->buttonDown &= ~1;
}
if ( d->theButton & 2 && ( d->upEnabled ) == 0 ) {
d->theButton &= ~2;
d->buttonDown &= ~2;
}
repaint( FALSE );
}
/*!
The previous enabled state is passed in \a old.
*/
void TQSpinWidget::enableChanged( bool )
{
d->upEnabled = isEnabled();
d->downEnabled = isEnabled();
updateDisplay();
}
/*!
Sets up-enabled to \a on.
*/
void TQSpinWidget::setUpEnabled( bool on )
{
if ( (bool)d->upEnabled != on ) {
d->upEnabled = on;
updateDisplay();
}
}
/*!
*/
bool TQSpinWidget::isUpEnabled() const
{
return d->upEnabled;
}
/*!
Sets down-enabled to \a on.
*/
void TQSpinWidget::setDownEnabled( bool on )
{
if ( (bool)d->downEnabled != on ) {
d->downEnabled = on;
updateDisplay();
}
}
/*!
*/
bool TQSpinWidget::isDownEnabled() const
{
return d->downEnabled;
}
/*!
Sets the button symbol to \a bs.
*/
void TQSpinWidget::setButtonSymbols( ButtonSymbols bs )
{
d->bsyms = bs;
}
/*!
*/
TQSpinWidget::ButtonSymbols TQSpinWidget::buttonSymbols() const
{
return d->bsyms;
}
#endif