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Diffstat (limited to 'kmplot/kmplot/kconstanteditor.cpp')
| -rw-r--r-- | kmplot/kmplot/kconstanteditor.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/kmplot/kmplot/kconstanteditor.cpp b/kmplot/kmplot/kconstanteditor.cpp new file mode 100644 index 00000000..6014c82b --- /dev/null +++ b/kmplot/kmplot/kconstanteditor.cpp @@ -0,0 +1,215 @@ +/* +* KmPlot - a math. function plotter for the KDE-Desktop +* +* Copyright (C) 2004 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. +* +*/ + +#include <kapplication.h> +#include <kdebug.h> +#include <kinputdialog.h> +#include <klineedit.h> +#include <klistview.h> +#include <klocale.h> +#include <kmessagebox.h> +#include <kstandarddirs.h> +#include <qpushbutton.h> +#include <qstringlist.h> +#include <qvaluevector.h> +#include <qdom.h> + +#include "kmplotio.h" +#include "kconstanteditor.h" + + +KConstantEditor::KConstantEditor(View *v, QWidget *parent, const char *name) + : QConstantEditor(parent,name), m_view(v) +{ + QString str_value; + QValueVector<Constant>::iterator it; + for(it = m_view->parser()->constant.begin(); it!= m_view->parser()->constant.end() ;++it) + { + str_value.setNum(it->value); + (void) new QListViewItem(varlist, QChar(it->constant), str_value); + } + +} + +KConstantEditor::~KConstantEditor() +{ +} + +void KConstantEditor::cmdNew_clicked() +{ + constant = '0'; + KEditConstant *dlg = new KEditConstant(m_view->parser(), constant, value); + connect( dlg, SIGNAL( finished() ), this,SLOT(newConstantSlot() ) ); + dlg->show(); +} + +void KConstantEditor::cmdEdit_clicked() +{ + if ( !varlist->currentItem() ) + return; + constant = varlist->currentItem()->text(0).at(0).latin1(); + value = varlist->currentItem()->text(1); + + KEditConstant *dlg = new KEditConstant(m_view->parser(), constant, value); + connect( dlg, SIGNAL( finished() ), this,SLOT(editConstantSlot() ) ); + dlg->show(); +} + +void KConstantEditor::cmdDelete_clicked() +{ + if ( !varlist->currentItem() ) + return; + + constant = varlist->currentItem()->text(0).at(0).latin1(); + value = varlist->currentItem()->text(1); + QString str; + + for( QValueVector<Ufkt>::iterator it = m_view->parser()->ufkt.begin(); it != m_view->parser()->ufkt.end(); ++it) + { + str = it->fstr; + for (int i=str.find(')'); (uint)i<str.length();i++) + if ( str.at(i) == constant ) + { + KMessageBox::error(this, i18n("A function uses this constant; therefore, it cannot be removed.")); + return; + } + } + QValueVector<Constant>::iterator it; + for(it = m_view->parser()->constant.begin(); it!= m_view->parser()->constant.end(); ++it) + { + if ( it->constant == constant) + { + if ( it++ == m_view->parser()->constant.end()) + m_view->parser()->constant.pop_back(); + else + { + it--; + m_view->parser()->constant.erase(it++); + } + KMessageBox::error(this, i18n("The item could not be found.")); + return; + } + } + + delete varlist->findItem(QChar(constant), 0); //removes the item from the constant list +} + +void KConstantEditor::varlist_clicked( QListViewItem * item ) +{ + if (item) + { + cmdEdit->setEnabled(true); + cmdDelete->setEnabled(true); + cmdDuplicate->setEnabled(true); + } + else + { + cmdEdit->setEnabled(false); + cmdDelete->setEnabled(false); + cmdDuplicate->setEnabled(false); + } +} + +void KConstantEditor::cmdDuplicate_clicked() +{ + if (!varlist->currentItem()) + return; + constant = varlist->currentItem()->text(0).at(0).latin1(); + value = varlist->currentItem()->text(1); + + QStringList list; + bool found; + for (char i='A'; i<'Z';i++) + { + found = false; + QValueVector<Constant>::iterator it; + for(it = m_view->parser()->constant.begin(); it!= m_view->parser()->constant.end() && !found;++it) + { + if ( it->constant == i || i == constant) + { + found = true; + } + } + if (!found) + list.append(QChar(i)); + } + QStringList result = KInputDialog::getItemList(i18n("Choose Name"),i18n("Choose a name for the constant:"),list, QStringList(), false, &found); + if (found) + { + constant = (*result.begin()).at(0).latin1(); + emit newConstantSlot(); + } + +} + +void KConstantEditor::newConstantSlot() +{ + double dvalue = m_view->parser()->eval(value); + m_view->parser()->constant.append( Constant(constant, dvalue) ); + (void) new QListViewItem(varlist, QChar( constant ), value); + varlist->sort(); +} + +void KConstantEditor::editConstantSlot() +{ + double dvalue = m_view->parser()->eval(value); + bool found = false; + QValueVector<Constant>::iterator it; + for(it = m_view->parser()->constant.begin(); it!= m_view->parser()->constant.end() && !found;++it) + { + if ( it->constant == constant) + { + it->value = dvalue; + found = true; + } + } + if (!found) + { + KMessageBox::error(this, i18n("The item could not be found.")); + return; + } + + QListViewItem *item = varlist->findItem(QChar(constant), 0); + if (item!=0) + item->setText(1,value); + + + int index = 0; + for( QValueVector<Ufkt>::iterator it = m_view->parser()->ufkt.begin(); it != m_view->parser()->ufkt.end(); ++it) + { + if( it->fstr.contains(constant)!=0 ) + m_view->parser()->reparse(index); //reparsing the function + ++index; + } + + m_view->drawPlot(); +} + +void KConstantEditor::varlist_doubleClicked( QListViewItem * ) +{ + cmdEdit_clicked(); +} + +#include "kconstanteditor.moc" |