spinbox.cpp

/* This file is part of the KDE project
   Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2004  Alexander Dymo <cloudtemple@mskat.net>
 
   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 "spinbox.h"
 
#include "property.h"
 
#include <tqlayout.h>
#include <tqobjectlist.h>
#include <tqvariant.h>
#include <tqpainter.h>
#include <tqlineedit.h>
 
#include <tdeglobal.h>
#include <tdelocale.h>
 
using namespace KoProperty;
 
IntSpinBox::IntSpinBox(int lower, int upper, int step, int value, int base, IntEdit *parent, const char *name)
: KIntSpinBox(lower, upper, step, value, base, parent, name)
{
    editor()->setAlignment(TQt::AlignLeft);
    installEventFilter(editor());
    installEventFilter(this);
    TQObjectList *spinwidgets = queryList( "TQSpinWidget", 0, false, true );
    TQSpinWidget* spin = static_cast<TQSpinWidget*>(spinwidgets->first());
    if (spin)
        spin->installEventFilter(this);
    delete spinwidgets;
}
 
void IntSpinBox::setValue(const TQVariant &value)
{
    if (dynamic_cast<IntEdit*>(parentWidget()) && dynamic_cast<IntEdit*>(parentWidget())->isReadOnly())
        return;
    if (value.isNull())
        editor()->clear();
    else
        KIntSpinBox::setValue(value.toInt());
}
 
bool
IntSpinBox::eventFilter(TQObject *o, TQEvent *e)
{
    if(o == editor())
    {
        if(e->type() == TQEvent::KeyPress)
        {
            TQKeyEvent* ev = static_cast<TQKeyEvent*>(e);
            if((ev->key()==Key_Up || ev->key()==Key_Down) && ev->state() !=ControlButton)
            {
                parentWidget()->eventFilter(o, e);
                return true;
            }
        }
    }
    if ((o == editor() || o == this || o->parent() == this) 
        && e->type() == TQEvent::Wheel && static_cast<IntEdit*>(parentWidget())->isReadOnly())
    {
        return true; //avoid value changes for read-only widget
    }
 
    return KIntSpinBox::eventFilter(o, e);
}
 

 
IntEdit::IntEdit(Property *property, TQWidget *parent, const char *name)
 : Widget(property, parent, name)
{
    TQVariant minVal( property ? property->option("min") : 0 );
    TQVariant maxVal( property ? property->option("max") : TQVariant() );
    TQVariant minValueText( property ? property->option("minValueText") : TQVariant() );
    if (minVal.isNull())
        minVal = 0;
    if (maxVal.isNull())
        maxVal = INT_MAX;
 
    m_edit = new IntSpinBox(minVal.toInt(), maxVal.toInt(), 1, 0, 10, this);
    if (!minValueText.isNull())
        m_edit->setSpecialValueText(minValueText.toString());
    m_edit->setMinimumHeight(5);
    setEditor(m_edit);
 
    setLeavesTheSpaceForRevertButton(true);
    setFocusWidget(m_edit);
    connect(m_edit, TQ_SIGNAL(valueChanged(int)), this, TQ_SLOT(slotValueChanged(int)));
}
 
IntEdit::~IntEdit()
{}
 
TQVariant
IntEdit::value() const
{
    if (m_edit->cleanText().isEmpty())
        return TQVariant();
    return m_edit->value();
}
 
void
IntEdit::setValue(const TQVariant &value, bool emitChange)
{
    m_edit->blockSignals(true);
    m_edit->setValue(value);
    updateSpinWidgets();
    m_edit->blockSignals(false);
    if (emitChange)
        emit valueChanged(this);
}
 
void
IntEdit::drawViewer(TQPainter *p, const TQColorGroup &cg, const TQRect &r, const TQVariant &value)
{
    TQString valueText = value.toString();
    if (property() && property()->hasOptions()) {
        //replace min value with minValueText if defined
        TQVariant minValue( property()->option("min") );
        TQVariant minValueText( property()->option("minValueText") );
        if (!minValue.isNull() && !minValueText.isNull() && minValue.toInt() == value.toInt()) {
            valueText = minValueText.toString();
        }
    }
 
    Widget::drawViewer(p, cg, r, valueText);
//  p->eraseRect(r);
//  p->drawText(r, TQt::AlignLeft | TQt::AlignVCenter | TQt::SingleLine, valueText);
}
 
void
IntEdit::slotValueChanged(int)
{
    emit valueChanged(this);
}
 
void
IntEdit::updateSpinWidgets()
{
    TQObjectList *spinwidgets = queryList( "TQSpinWidget", 0, false, true );
    TQSpinWidget* spin = static_cast<TQSpinWidget*>(spinwidgets->first());
    if (spin) {
        spin->setUpEnabled(!isReadOnly());
        spin->setDownEnabled(!isReadOnly());
    }
    delete spinwidgets;
}
 
void
IntEdit::setReadOnlyInternal(bool readOnly)
{
    //disable editor and spin widget
    m_edit->editor()->setReadOnly(readOnly);
    updateSpinWidgets();
    if (readOnly)
        setLeavesTheSpaceForRevertButton(false);
}

 
DoubleSpinBox::DoubleSpinBox (double lower, double upper, double step, double value, int precision, DoubleEdit *parent)
: KDoubleSpinBox(lower, upper, step, value, precision, parent)
{
    editor()->setAlignment(TQt::AlignLeft);
    installEventFilter(editor());
    installEventFilter(this);
    TQObjectList *spinwidgets = queryList( "TQSpinWidget", 0, false, true );
    TQSpinWidget* spin = static_cast<TQSpinWidget*>(spinwidgets->first());
    if (spin)
        spin->installEventFilter(this);
    delete spinwidgets;
}
 
bool
DoubleSpinBox::eventFilter(TQObject *o, TQEvent *e)
{
    if(o == editor())
    {
        if(e->type() == TQEvent::KeyPress)
        {
            TQKeyEvent* ev = static_cast<TQKeyEvent*>(e);
            if((ev->key()==Key_Up || ev->key()==Key_Down) && ev->state()!=ControlButton)
            {
                parentWidget()->eventFilter(o, e);
                return true;
            }
        }
    }
    if ((o == editor() || o == this || o->parent() == this) 
        && e->type() == TQEvent::Wheel && static_cast<IntEdit*>(parentWidget())->isReadOnly())
    {
        return true; //avoid value changes for read-only widget
    }
 
    return KDoubleSpinBox::eventFilter(o, e);
}
 
 
void DoubleSpinBox::setValue( const TQVariant& value )
{
    if (dynamic_cast<DoubleEdit*>(parentWidget()) && dynamic_cast<DoubleEdit*>(parentWidget())->isReadOnly())
        return;
    if (value.isNull())
        editor()->clear();
    else
        KDoubleSpinBox::setValue(value.toDouble());
}

 
DoubleEdit::DoubleEdit(Property *property, TQWidget *parent, const char *name)
 : Widget(property, parent, name)
{
    TQVariant minVal( property ? property->option("min") : 0 );
    TQVariant maxVal( property ? property->option("max") : TQVariant() );
    TQVariant step( property ? property->option("step") : TQVariant());
    TQVariant precision( property ? property->option("precision") : TQVariant());
    TQVariant minValueText( property ? property->option("minValueText") : TQVariant() );
    if (minVal.isNull())
        minVal = 0;
    if (maxVal.isNull())
        maxVal = (double)(INT_MAX/100);
    if(step.isNull())
        step = 0.1;
    if(precision.isNull())
        precision = 2;
 
    m_edit = new DoubleSpinBox(minVal.toDouble(), maxVal.toDouble(), step.toDouble(),
         0, precision.toInt(), this);
    if (!minValueText.isNull())
        m_edit->setSpecialValueText(minValueText.toString());
    m_edit->setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Expanding);
    m_edit->setMinimumHeight(5);
    setEditor(m_edit);
 
    setLeavesTheSpaceForRevertButton(true);
    setFocusWidget(m_edit);
    connect(m_edit, TQ_SIGNAL(valueChanged(double)), this, TQ_SLOT(slotValueChanged(double)));
}
 
DoubleEdit::~DoubleEdit()
{}
 
TQVariant
DoubleEdit::value() const
{
    if (m_edit->cleanText().isEmpty())
        return TQVariant();
    return m_edit->value();
}
 
void
DoubleEdit::setValue(const TQVariant &value, bool emitChange)
{
    m_edit->blockSignals(true);
    m_edit->setValue(value);
    updateSpinWidgets();
    m_edit->blockSignals(false);
    if (emitChange)
        emit valueChanged(this);
}
 
void
DoubleEdit::drawViewer(TQPainter *p, const TQColorGroup &cg, const TQRect &r, const TQVariant &value)
{
    TQString valueText;
    if (property() && property()->hasOptions()) {
        //replace min value with minValueText if defined
        TQVariant minValue( property()->option("min") );
        TQVariant minValueText( property()->option("minValueText") );
        if (!minValue.isNull() && !minValueText.isNull() && minValue.toString().toDouble() == value.toString().toDouble()) {
            valueText = minValueText.toString();
        }
    }
    if (valueText.isEmpty())
        valueText = TQString(value.toString()).replace('.', TDEGlobal::locale()->decimalSymbol());
 
    Widget::drawViewer(p, cg, r, valueText);
//  p->eraseRect(r);
//  p->drawText(r, TQt::AlignLeft | TQt::AlignVCenter | TQt::SingleLine, valueText);
}
 
void
DoubleEdit::slotValueChanged(double)
{
    emit valueChanged(this);
}
 
void
DoubleEdit::updateSpinWidgets()
{
    TQObjectList *spinwidgets = queryList( "TQSpinWidget", 0, false, true );
    TQSpinWidget* spin = static_cast<TQSpinWidget*>(spinwidgets->first());
    if (spin) {
        spin->setUpEnabled(!isReadOnly());
        spin->setDownEnabled(!isReadOnly());
    }
    delete spinwidgets;
}
 
void
DoubleEdit::setReadOnlyInternal(bool readOnly)
{
    //disable editor and spin widget
    m_edit->editor()->setReadOnly(readOnly);
    updateSpinWidgets();
    if (readOnly)
        setLeavesTheSpaceForRevertButton(false);
}
 
#include "spinbox.moc"