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118 lines
2.9 KiB
C++
118 lines
2.9 KiB
C++
/* This file is part of the KDE project
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Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
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Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef KFORMULAWIDGET_H
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#define KFORMULAWIDGET_H
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#include <qdom.h>
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#include <qpixmap.h>
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#include <qpoint.h>
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#include <qwidget.h>
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#include <kformuladefs.h>
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#include <kformulaview.h>
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KFORMULA_NAMESPACE_BEGIN
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class FormulaCursor;
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class Container;
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KFORMULA_NAMESPACE_END
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/**
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* The view. A widget that shows the formula. There are methods
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* to move the cursor around. To edit the formula use the document.
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*/
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class KFormulaWidget : public QWidget {
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Q_OBJECT
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public:
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KFormulaWidget(KFormula::Container*, QWidget* parent=0, const char* name=0, WFlags f=0);
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~KFormulaWidget();
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/**
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* @returns the point inside the formula widget where the cursor is.
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*/
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QPoint getCursorPoint() const;
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/**
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* Puts the widget in read only mode.
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*/
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void setReadOnly(bool ro);
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const KFormula::View* view() const { return &formulaView; }
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KFormula::View* view() { return &formulaView; }
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public slots:
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void slotSelectAll();
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signals:
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/**
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* Is emitted every time the cursor might have changed.
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*/
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void cursorChanged(bool visible, bool selecting);
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protected slots:
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/**
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* The formula has changed and needs to be redrawn.
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*/
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void slotFormulaChanged(int width, int height);
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void slotCursorChanged(bool visible, bool selecting);
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protected:
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virtual void mousePressEvent(QMouseEvent* event);
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virtual void mouseReleaseEvent(QMouseEvent* event);
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virtual void mouseDoubleClickEvent(QMouseEvent* event);
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virtual void mouseMoveEvent(QMouseEvent* event);
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virtual void paintEvent(QPaintEvent* event);
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virtual void keyPressEvent(QKeyEvent* event);
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virtual void focusInEvent(QFocusEvent* event);
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virtual void focusOutEvent(QFocusEvent* event);
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/**
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* The document we show.
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*/
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KFormula::Container* getDocument();
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/**
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* Our cursor.
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*/
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KFormula::FormulaCursor* getCursor();
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private:
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/**
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* This widget is a wrapper around the actual view.
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*/
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KFormula::View formulaView;
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QPixmap buffer;
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};
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#endif // KFORMULAWIDGET_H
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