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author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-01-20 01:29:50 +0000 |
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committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-01-20 01:29:50 +0000 |
commit | 8362bf63dea22bbf6736609b0f49c152f975eb63 (patch) | |
tree | 0eea3928e39e50fae91d4e68b21b1e6cbae25604 /lib/kformula/kformulaview.h | |
download | koffice-8362bf63dea22bbf6736609b0f49c152f975eb63.tar.gz koffice-8362bf63dea22bbf6736609b0f49c152f975eb63.zip |
Added old abandoned KDE3 version of koffice
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/koffice@1077364 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'lib/kformula/kformulaview.h')
-rw-r--r-- | lib/kformula/kformulaview.h | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/lib/kformula/kformulaview.h b/lib/kformula/kformulaview.h new file mode 100644 index 00000000..f93b491f --- /dev/null +++ b/lib/kformula/kformulaview.h @@ -0,0 +1,189 @@ +/* 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 KFORMULAVIEW_H +#define KFORMULAVIEW_H + +#include <qevent.h> +#include <qobject.h> +#include <qrect.h> + +#include "kformuladefs.h" +#include "contextstyle.h" + +class QColorGroup; + +KFORMULA_NAMESPACE_BEGIN + +class BasicElement; +class FormulaCursor; +class FormulaElement; +class Container; + + +/** + * The view that shows the formula. Its main purpose is to handle + * the cursor. There are methods + * to move the cursor around. To edit the formula use the document. + * + * The view is meant to be easy embeddable into a widget or + * to be used alone if there is a bigger widget the formula + * is to be drawn into. + */ +class KOFORMULA_EXPORT View : public QObject { + Q_OBJECT + +public: + + View(Container*); + virtual ~View(); + + /** + * @returns the point inside the formula view where the cursor is. + */ + QPoint getCursorPoint() const; + + /** + * Puts the widget in read only mode. + */ + void setReadOnly(bool ro); + + void mousePressEvent(QMouseEvent* event); + void mouseReleaseEvent(QMouseEvent* event); + void mouseDoubleClickEvent(QMouseEvent* event); + void mouseMoveEvent(QMouseEvent* event); + void wheelEvent(QWheelEvent* event); + + // the mouse event happened at a certain point + void mousePressEvent( QMouseEvent* event, const PtPoint& pos ); + void mouseReleaseEvent( QMouseEvent* event, const PtPoint& pos ); + void mouseDoubleClickEvent( QMouseEvent* event, const PtPoint& pos ); + void mouseMoveEvent( QMouseEvent* event, const PtPoint& pos ); + void wheelEvent( QWheelEvent* event, const PtPoint& pos ); + + // the mouse event happened at a certain point + void mousePressEvent( QMouseEvent* event, const LuPixelPoint& pos ); + void mouseReleaseEvent( QMouseEvent* event, const LuPixelPoint& pos ); + void mouseDoubleClickEvent( QMouseEvent* event, const LuPixelPoint& pos ); + void mouseMoveEvent( QMouseEvent* event, const LuPixelPoint& pos ); + void wheelEvent( QWheelEvent* event, const LuPixelPoint& pos ); + + void keyPressEvent(QKeyEvent* event); + virtual void focusInEvent(QFocusEvent* event); + virtual void focusOutEvent(QFocusEvent* event); + + void calcCursor(); + + void draw(QPainter& painter, const QRect& rect, const QColorGroup& cg); + void draw(QPainter& painter, const QRect& rect); + + /** + * The document we show. + */ + virtual Container* getDocument() const { return container(); } + + /** + * Our cursor. + */ + FormulaCursor* getCursor() const { return cursor(); } + + void setSmallCursor(bool small); + + // simple cursor movement. + + void moveLeft( int flag = NormalMovement ); + void moveRight( int flag = NormalMovement ); + void moveUp( int flag = NormalMovement ); + void moveDown( int flag = NormalMovement ); + + void moveHome( int flag = NormalMovement ); + void moveEnd( int flag = NormalMovement ); + + /** @returns whether the cursor is at the first position. */ + bool isHome() const; + + /** @returns whether the cursor is at the last position. */ + bool isEnd() const; + + void eraseSelection( Direction direction = beforeCursor ); + void addText( QString str ); + +signals: + + /** + * Is emitted every time the cursor might have changed. + */ + void cursorChanged(bool visible, bool selecting); + +public slots: + + void slotSelectAll(); + +protected slots: + + /** + * The cursor has been moved by the container. + * We need to repaint if it was ours. + */ + void slotCursorMoved(FormulaCursor* cursor); + + /** + * A new formula has been loaded. + */ + void slotFormulaLoaded(FormulaElement*); + + /** + * There is an element that will disappear from the tree. + * our cursor must not be inside it. + */ + void slotElementWillVanish(BasicElement*); + + /** + * Tell the cursor to change its visibility status + */ + void slotBlinkCursor(); + +protected: + + virtual bool cursorVisible(); + +private: + + /** + * Tell everybody that our cursor has changed if so. + */ + void emitCursorChanged(); + + bool& cursorHasChanged(); + bool& smallCursor(); + bool& activeCursor(); + Container* container() const; + void startCursorTimer(); + void stopCursorTimer(); + const ContextStyle& contextStyle() const; + FormulaCursor* cursor() const; + + struct View_Impl; + View_Impl* impl; +}; + +KFORMULA_NAMESPACE_END + +#endif // KFORMULAVIEW_H |