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/* This file is part of the KDE project
Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
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 <iostream>
#include <qpainter.h>
#include <kapplication.h>
#include <kdebug.h>
#include <basicelement.h>
#include <formulacursor.h>
#include <formulaelement.h>
#include <kformulacontainer.h>
#include <kformuladocument.h>
#include "kformulawidget.h"
KFormulaWidget::KFormulaWidget(KFormula::Container* doc,
QWidget* parent, const char* name, WFlags f)
: QWidget(parent, name, f | WRepaintNoErase | WResizeNoErase),
formulaView(doc)
{
connect(doc, SIGNAL(formulaChanged(int, int)),
this, SLOT(slotFormulaChanged(int, int)));
connect(&formulaView, SIGNAL(cursorChanged(bool, bool)),
this, SLOT(slotCursorChanged(bool, bool)));
setFocusPolicy(QWidget::StrongFocus);
setBackgroundMode(NoBackground/*QWidget::PaletteBase*/);
QRect rect = doc->boundingRect();
slotFormulaChanged(rect.width(), rect.height());
}
KFormulaWidget::~KFormulaWidget()
{
}
QPoint KFormulaWidget::getCursorPoint() const
{
return formulaView.getCursorPoint();
}
void KFormulaWidget::setReadOnly(bool ro)
{
formulaView.setReadOnly(ro);
}
void KFormulaWidget::paintEvent(QPaintEvent* event)
{
// Always repaint the buffer. This is not so much more work
// than it seems to be as each cursor movement requires a repaint.
QPainter p( &buffer );
//p.translate( -fr.x(), -fr.y() );
formulaView.draw( p, event->rect(), colorGroup() );
QPainter painter;
painter.begin(this);
painter.drawPixmap( event->rect().x(), event->rect().y(),
buffer, event->rect().x(), event->rect().y(), event->rect().width(), event->rect().height() );
painter.end();
}
void KFormulaWidget::keyPressEvent(QKeyEvent* event)
{
formulaView.keyPressEvent(event);
}
void KFormulaWidget::focusInEvent(QFocusEvent* event)
{
formulaView.focusInEvent(event);
}
void KFormulaWidget::focusOutEvent(QFocusEvent* event)
{
formulaView.focusOutEvent(event);
}
void KFormulaWidget::mousePressEvent(QMouseEvent* event)
{
formulaView.mousePressEvent(event);
}
void KFormulaWidget::mouseReleaseEvent(QMouseEvent* event)
{
formulaView.mouseReleaseEvent(event);
}
void KFormulaWidget::mouseDoubleClickEvent(QMouseEvent* event)
{
formulaView.mouseDoubleClickEvent(event);
}
void KFormulaWidget::mouseMoveEvent(QMouseEvent* event)
{
formulaView.mouseMoveEvent(event);
}
void KFormulaWidget::slotFormulaChanged(int width, int height)
{
// Magic numbers just to see the cursor.
resize(width + 5, height + 5);
buffer.resize(width + 5, height + 5);
update();
//kdDebug( 40000 ) << "KFormulaWidget::slotFormulaChanged" << endl;
}
/**
* The document we show.
*/
KFormula::Container* KFormulaWidget::getDocument()
{
return formulaView.getDocument();
}
/**
* Our cursor.
*/
KFormula::FormulaCursor* KFormulaWidget::getCursor()
{
return formulaView.getCursor();
}
void KFormulaWidget::slotSelectAll()
{
formulaView.slotSelectAll();
}
void KFormulaWidget::slotCursorChanged(bool visible, bool selecting)
{
emit cursorChanged(visible, selecting);
update();
}
#include "kformulawidget.moc"
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