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286 lines
7.6 KiB
286 lines
7.6 KiB
/*****************************************************************
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Based on code 'Run' applet code, copyright (c) 2000 Matthias Elter <elter@kde.org>
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Modifications made by Andrew Coles, 2004 <andrew_coles@yahoo.co.uk>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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******************************************************************/
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#include <tqlabel.h>
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#include <tqfont.h>
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#include <tqstringlist.h>
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#include <tqpushbutton.h>
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#include <tqhbox.h>
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#include <kapplication.h>
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#include <kglobal.h>
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#include <klocale.h>
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#include <tdeconfig.h>
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#include <kcombobox.h>
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#include <kurifilter.h>
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#include <kdialog.h>
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#include <krun.h>
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#include <kmessagebox.h>
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#include <kpopupmenu.h>
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#include "parser.h"
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#include "mathapplet.h"
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#include "mathapplet.moc"
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extern "C"
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{
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KDE_EXPORT KPanelApplet* init(TQWidget *parent, const TQString& configFile)
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{
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TDEGlobal::locale()->insertCatalogue("kmathapplet");
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return new MathApplet(configFile, KPanelApplet::Stretch, 0, parent, "kmathapplet");
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}
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}
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MathApplet::MathApplet(const TQString& configFile, Type type, int actions,
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TQWidget *parent, const char *name)
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: KPanelApplet(configFile, type, actions, parent, name),
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m_hasFocus(false)
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{
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// setBackgroundMode(X11ParentRelative);
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setBackgroundOrigin( AncestorOrigin );
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// setup label
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_label = new TQLabel(i18n("Evaluate:"), this);
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TQFont f(_label->font());
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f.setPixelSize(12);
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// _label->setBackgroundMode(X11ParentRelative);
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_label->setBackgroundOrigin( AncestorOrigin );
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_label->setFixedHeight(14);
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_label->setFont(f);
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// setup popup button
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_btn = new TQPushButton(this);
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f = _btn->font();
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f.setPixelSize(12);
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_btn->setFont(f);
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connect(_btn, TQT_SIGNAL(clicked()), TQT_SLOT(popup_combo()));
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// setup history combo
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_input = new KHistoryCombo(this);
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_input->setFocus();
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_input->clearEdit();
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watchForFocus(_input->lineEdit());
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connect(_input, TQT_SIGNAL(activated(const TQString&)),
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TQT_SLOT(evaluate(const TQString&)));
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initContextMenu();
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useDegrees();
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TDEConfig *c = config();
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c->setGroup("General");
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// restore history and completion list
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TQStringList list = c->readListEntry("Completion list");
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_input->completionObject()->setItems(list);
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list = c->readListEntry("History list");
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_input->setHistoryItems(list);
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int mode = c->readNumEntry( "CompletionMode", TDEGlobalSettings::completionMode() );
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_input->setCompletionMode( (TDEGlobalSettings::Completion) mode );
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_hbox = new TQHBox( 0, 0, WStyle_Customize | WType_Popup );
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_hbox->setFixedSize(120, 22);
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}
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void MathApplet::initContextMenu()
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{
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mContextMenu = new KPopupMenu(this);
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mContextMenu->setCheckable(true);
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mContextMenu->insertItem(i18n("Use &Degrees"), this, TQT_SLOT(useDegrees()), 0, 0, 0);
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mContextMenu->insertItem(i18n("Use &Radians"), this, TQT_SLOT(useRadians()), 0, 1, 1);
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setCustomMenu(mContextMenu);
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}
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MathApplet::~MathApplet()
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{
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TDEConfig *c = config();
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c->setGroup("General");
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// save history and completion list
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TQStringList list = _input->completionObject()->items();
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c->writeEntry("Completion list", list);
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list = _input->historyItems();
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c->writeEntry("History list", list);
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c->writeEntry( "CompletionMode", (int) _input->completionMode() );
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c->sync();
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TDEGlobal::locale()->removeCatalogue("kmathapplet");
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}
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void MathApplet::useDegrees() {
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mContextMenu->setItemChecked(0, true);
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mContextMenu->setItemChecked(1, false);
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Parser dummy;
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dummy.setAngleMode(1);
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}
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void MathApplet::useRadians() {
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mContextMenu->setItemChecked(0, false);
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mContextMenu->setItemChecked(1, true);
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Parser dummy;
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dummy.setAngleMode(0);
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}
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void MathApplet::resizeEvent(TQResizeEvent*)
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{
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if(orientation() ==Qt::Horizontal)
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{
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_btn->hide();
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_input->reparent(this, TQPoint(0,0), true);
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_label->setGeometry(0,0, width(), _label->height());
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if(height() >= _input->sizeHint().height() + _label->height())
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{
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int inputVOffset = height() - _input->sizeHint().height() - 2;
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int labelHeight = _label->sizeHint().height();
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_label->setGeometry(0, inputVOffset - labelHeight,
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width(), labelHeight);
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_input->setGeometry(0, inputVOffset,
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width(), _input->sizeHint().height());
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_label->show();
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}
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else
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{
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_label->hide();
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// make it as high as the combobox naturally wants to be
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// but no taller than the panel is!
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// don't forget to center it vertically either.
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int newHeight = _input->sizeHint().height();
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if (newHeight > height())
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newHeight = height();
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_input->setGeometry(0, (height() - newHeight) / 2,
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width(), newHeight);
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}
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}
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else
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{
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_btn->show();
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_btn->setFixedSize(width(), 22);
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_input->reparent( _hbox, TQPoint(0, 0), false);
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_label->hide();
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}
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setButtonText();
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}
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void MathApplet::positionChange(KPanelApplet::Position)
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{
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setButtonText();
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}
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void MathApplet::setButtonText()
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{
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TQString t;
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if (position() == pLeft)
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{
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if (width() >= 42)
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t = i18n("< Eval");
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else
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t = "<";
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}
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else
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{
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if(width() >= 42)
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t = i18n("Eval >");
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else
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t = ">";
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}
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_btn->setText(t);
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}
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int MathApplet::widthForHeight(int ) const
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{
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return 110;
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}
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int MathApplet::heightForWidth(int ) const
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{
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return 22;
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}
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void MathApplet::popup_combo()
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{
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TQPoint p;
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if (position() == pLeft)
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p = mapToGlobal(TQPoint(-_input->width()-1, 0));
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else
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p = mapToGlobal(TQPoint(width()+1, 0));
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_hbox->move(p);
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_hbox->show();
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_input->setFocus();
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}
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void MathApplet::evaluate(const TQString& command)
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{
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TQString exec;
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Parser evaluator;
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kapp->propagateSessionManager();
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_input->addToHistory(command);
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TQString cmd = command;
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// Nothing interesting. Quit!
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if ( cmd.isEmpty() ){
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KMessageBox::sorry(0L, i18n("You have to enter an expression to be evaluated first."));
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needsFocus(true);
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} else {
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double answer = evaluator.eval(command);
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if (evaluator.errmsg() == 0) {
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TQString ansAsString = TQString::number(answer);
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_input->clearEdit();
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_input->setEditText(ansAsString);
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} else {
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_input->removeFromHistory(_input->currentText());
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needsFocus(true);
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}
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}
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if (orientation() ==Qt::Vertical)
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_hbox->hide();
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}
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void MathApplet::mousePressEvent(TQMouseEvent *e)
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{
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if ( e->button() != Qt::RightButton )
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{
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KPanelApplet::mousePressEvent( e );
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return;
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}
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mContextMenu->exec(e->globalPos());
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}
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