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Diffstat (limited to 'kmplot/kmplot/ksliderwindow.cpp')
| -rw-r--r-- | kmplot/kmplot/ksliderwindow.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/kmplot/kmplot/ksliderwindow.cpp b/kmplot/kmplot/ksliderwindow.cpp new file mode 100644 index 00000000..675cb9d9 --- /dev/null +++ b/kmplot/kmplot/ksliderwindow.cpp @@ -0,0 +1,121 @@ +/* +* KmPlot - a math. function plotter for the KDE-Desktop +* +* Copyright (C) 2005 Fredrik Edemar +* f_edemar@linux.se +* +* This file is part of the KDE Project. +* KmPlot is part of the KDE-EDU Project. +* +* 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. +* +* This program 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 General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +* +*/ +// Qt includes +#include <qcursor.h> +#include <qslider.h> +#include <qtooltip.h> +#include <qwhatsthis.h> + +// KDE includes +#include <kaction.h> +#include <kconfig.h> +#include <kdebug.h> +#include <kinputdialog.h> +#include <klocale.h> + +#include <limits.h> +#include <math.h> +#include <stdlib.h> + +// local includes +#include "ksliderwindow.h" + +KSliderWindow::KSliderWindow(QWidget* parent, int num ) : + SliderWindow( parent, "", false, Qt::WStyle_Tool-Qt::WStyle_Maximize ), m_num(num) +{ + setCaption(i18n( "Slider %1" ).arg( num+1 ) ); + QToolTip::add( slider, i18n( "Slider no. %1" ).arg( num+1 )); + QWhatsThis::add( this, i18n( "Move slider to change the parameter of the function plot connected to this slider." ) ); + + // load the min and max value + the current value + KConfig config( "kmplotrc" ); + config.setGroup( "slider" + QString::number(num) ); + slider->setMinValue( config.readNumEntry( "min", 0) ); + slider->setMaxValue( config.readNumEntry( "max", 100) ); + slider->setValue( config.readNumEntry( "value", 50) ); + slider->setPageStep( (int)ceil((abs(slider->minValue()) + abs(slider->maxValue()))/10.) ); + + slider->installEventFilter(this); + installEventFilter(this); + + m_popupmenu = new KPopupMenu(this); + KAction *mnuMinValue = new KAction(i18n("&Change Minimum Value") ,0,this, SLOT( mnuMinValue_clicked() ),0); + mnuMinValue->plug(m_popupmenu); + KAction *mnuMaxValue = new KAction(i18n("&Change Maximum Value") ,0,this, SLOT( mnuMaxValue_clicked() ),0 ); + mnuMaxValue->plug(m_popupmenu); +} + +KSliderWindow::~KSliderWindow() +{ + // save the min and max value + the current value + KConfig config( "kmplotrc" ); + config.setGroup( "slider" + QString::number(m_num) ); + config.writeEntry( "min", slider->minValue() ); + config.writeEntry( "max", slider->maxValue() ); + config.writeEntry( "value", slider->value() ); +} + +bool KSliderWindow::eventFilter( QObject *obj, QEvent *ev ) +{ + if (ev->type() == QEvent::MouseButtonPress) + { + QMouseEvent *e = (QMouseEvent *)ev; + if (e->button() != Qt::RightButton) + return SliderWindow::eventFilter( obj, ev ); + m_popupmenu->exec(QCursor::pos()); + return true; + } + return SliderWindow::eventFilter( obj, ev ); +} + +void KSliderWindow::closeEvent( QCloseEvent * e) +{ + emit windowClosed(m_num); + e->accept(); +} + +void KSliderWindow::mnuMinValue_clicked() +{ + bool ok; + int const result = KInputDialog::getInteger(i18n("Change Minimum Value"), i18n("Type a new minimum value for the slider:"), slider->minValue(), INT_MIN, INT_MAX, 1, 10, &ok); + if (!ok) + return; + slider->setMinValue(result); + slider->setPageStep( (int)ceil((abs(slider->maxValue()) + abs(result))/10.) ); + setFocus(); +} + +void KSliderWindow::mnuMaxValue_clicked() +{ + bool ok; + int const result = KInputDialog::getInteger(i18n("Change Maximum Value"), i18n("Type a new maximum value for the slider:"), slider->maxValue(), INT_MIN, INT_MAX, 1, 10, &ok); + if (!ok) + return; + slider->setMaxValue(result); + slider->setPageStep( (int)ceil((abs(slider->minValue()) + abs(result))/10.) ); + setFocus(); +} + +#include "ksliderwindow.moc" |