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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.
*/
#ifndef KFORMULAWIDGET_H
#define KFORMULAWIDGET_H
#include <tqdom.h>
#include <tqpixmap.h>
#include <tqpoint.h>
#include <tqwidget.h>
#include "kformuladefs.h"
#include "kformulaview.h"
KFORMULA_NAMESPACE_BEGIN
class BasicElement;
class FormulaCursor;
class FormulaElement;
class Container;
KFORMULA_NAMESPACE_END
using namespace KFormula;
/**
* The view. A widget that shows the formula. There are methods
* to move the cursor around. To edit the formula use the document.
*/
class KFormulaWidget : public TQWidget {
Q_OBJECT
TQ_OBJECT
public:
KFormulaWidget(Container*, TQWidget* tqparent=0, const char* name=0, WFlags f=0);
~KFormulaWidget();
/**
* @returns the point inside the formula widget where the cursor is.
*/
TQPoint getCursorPoint() const;
/**
* Puts the widget in read only mode.
*/
void setReadOnly(bool ro);
public slots:
void slotSelectAll();
signals:
/**
* Is emitted every time the cursor might have changed.
*/
void cursorChanged(bool visible, bool selecting);
protected slots:
/**
* The formula has changed and needs to be redrawn.
*/
void slotFormulaChanged(int width, int height);
void slotCursorChanged(bool visible, bool selecting);
protected:
virtual void mousePressEvent(TQMouseEvent* event);
virtual void mouseReleaseEvent(TQMouseEvent* event);
virtual void mouseDoubleClickEvent(TQMouseEvent* event);
virtual void mouseMoveEvent(TQMouseEvent* event);
virtual void wheelEvent(TQWheelEvent* event);
virtual void paintEvent(TQPaintEvent* event);
virtual void keyPressEvent(TQKeyEvent* event);
virtual void focusInEvent(TQFocusEvent* event);
virtual void focusOutEvent(TQFocusEvent* event);
/**
* The document we show.
*/
Container* getDocument();
/**
* Our cursor.
*/
FormulaCursor* getCursor();
private:
/**
* This widget is a wrapper around the actual view.
*/
View formulaView;
TQPixmap buffer;
};
#endif // KFORMULAWIDGET_H
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