libs/flake

KoViewConverter.h

Go to the documentation of this file.
00001 /* This file is part of the KDE project
00002  * Copyright (C) 2006 Thomas Zander <zander@kde.org>
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Library General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Library General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Library General Public License
00015  * along with this library; see the file COPYING.LIB.  If not, write to
00016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018  */
00019 
00020 #ifndef KOVIEWCONVERTER_H
00021 #define KOVIEWCONVERTER_H
00022 
00023 #include <QtCore/QPointF>
00024 #include <QtCore/QRectF>
00025 
00033 class KoViewConverter
00034 {
00035 public:
00036     KoViewConverter() {}
00037     virtual ~KoViewConverter() {}
00038 
00043     virtual QPointF documentToView(const QPointF &documentPoint) const = 0;
00044 
00049     virtual QPointF viewToDocument(const QPointF &viewPoint) const = 0;
00050 
00055     virtual QRectF documentToView(const QRectF &documentRect) const = 0;
00056 
00061     virtual QRectF viewToDocument(const QRectF &viewRect) const = 0;
00062 
00068     virtual QSizeF documentToView(const QSizeF& documentSize) const = 0;
00069 
00075     virtual QSizeF viewToDocument(const QSizeF& viewSize) const = 0;
00076 
00082     virtual qreal documentToViewX(qreal documentX) const = 0;
00083 
00089     virtual qreal documentToViewY(qreal documentY) const = 0;
00090 
00096     virtual qreal viewToDocumentX(qreal viewX) const = 0;
00097 
00103     virtual qreal viewToDocumentY(qreal viewY) const = 0;
00104 
00110     virtual void zoom(qreal *zoomX, qreal *zoomY) const = 0;
00111 
00112 };
00113 
00114 #endif