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0001 /* This file is part of the KDE project
0002  * Copyright (C) 2013 Mojtaba Shahi Senobari <mojtaba.shahi3000@gmail.com>
0003  *
0004  * This library is free software; you can redistribute it and/or
0005  * modify it under the terms of the GNU Library General Public
0006  * License as published by the Free Software Foundation; either
0007  * version 2 of the License, or (at your option) any later version.
0008  *
0009  * This library is distributed in the hope that it will be useful,
0010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012  * Library General Public License for more details.
0013  *
0014  * You should have received a copy of the GNU Library General Public License
0015  * along with this library; see the file COPYING.LIB.  If not, write to
0016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017  * Boston, MA 02110-1301, USA.
0018  */
0019 #ifndef KOANNOTATIONLAYOUTMANAGER_H
0020 #define KOANNOTATIONLAYOUTMANAGER_H
0021 
0022 #include "flake_export.h"
0023 
0024 #include <QObject>
0025 
0026 class KoShapeManager;
0027 class KoCanvasBase;
0028 
0029 class QPainter;
0030 class QPointF;
0031 
0032 class KoShape;
0033 
0034 class FLAKE_EXPORT KoAnnotationLayoutManager: public QObject
0035 {
0036     Q_OBJECT
0037 public:
0038     static const qreal shapeSpace; // Distance between annotation shapes.
0039     static const qreal shapeWidth; // Annotation shapes width.
0040     //Connection point of lines from shape to this point and from this point to refText position.
0041     static const qreal connectionPointLines;
0042 
0043     explicit KoAnnotationLayoutManager(QObject *parent = 0);
0044     ~KoAnnotationLayoutManager() override;
0045 
0046     void setShapeManager(KoShapeManager *shapeManager);
0047 
0048     void setCanvasBase(KoCanvasBase *canvas);
0049 
0050     void setViewContentWidth(qreal width);
0051 
0052     void paintConnections(QPainter &painter);
0053     // Return true if shape is in annotation shapes list.
0054     bool isAnnotationShape(KoShape *shape) const;
0055 
0056 public Q_SLOTS:
0057     /// register the position of an annotation shape.
0058     void registerAnnotationRefPosition(KoShape *annotationShape, const QPointF& refPosition);
0059 
0060     /// Remove annotation shape.
0061     void removeAnnotationShape(KoShape *annotationShape);
0062 
0063     /// Update layout annotation shapes. Called when shape size changed.
0064     void updateLayout(KoShape *shape);
0065 
0066 Q_SIGNALS:
0067     void hasAnnotationsChanged(bool hasAnnotations);
0068 
0069 private:
0070     /// layout annotation shapes
0071     void layoutAnnotationShapes();
0072 
0073 
0074 private:
0075     class Private;
0076     Private * const d;
0077 };
0078 
0079 #endif // KOANNOTATIONLAYOUTMANAGER_H
0080