libs/flake

KoCreatePathTool.h

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00001 /* This file is part of the KDE project
00002  *
00003  * Copyright (C) 2006 Thorsten Zachmann <zachmann@kde.org>
00004  * Copyright (C) 2008-2009 Jan Hambrecht <jaham@gmx.net>
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Library General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Library General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Library General Public License
00017  * along with this library; see the file COPYING.LIB.  If not, write to
00018  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  */
00021 #ifndef KOCREATEPATHTOOL_H
00022 #define KOCREATEPATHTOOL_H
00023 
00024 
00025 #include <KoTool.h>
00026 
00027 #include <QMap>
00028 
00029 class KoPathShape;
00030 class KoPathPoint;
00031 
00032 #define KoCreatePathTool_ID "CreatePathTool"
00033 
00037 class FLAKE_EXPORT KoCreatePathTool : public KoTool
00038 {
00039     Q_OBJECT
00040 public:
00045     explicit KoCreatePathTool(KoCanvasBase * canvas);
00046     virtual ~KoCreatePathTool();
00047 
00048     void paint(QPainter &painter, const KoViewConverter &converter);
00049 
00050     void mousePressEvent(KoPointerEvent *event);
00051     void mouseDoubleClickEvent(KoPointerEvent *event);
00052     void mouseMoveEvent(KoPointerEvent *event);
00053     void mouseReleaseEvent(KoPointerEvent *event);
00054     virtual void keyPressEvent(QKeyEvent *event);
00055 
00056 public slots:
00057     virtual void activate(bool temporary = false);
00058     virtual void deactivate();
00059     virtual void resourceChanged(int key, const QVariant & res);
00060 
00061 protected:
00063     virtual void addPathShape();
00065     virtual QMap<QString, QWidget *> createOptionWidgets();
00066 
00067     KoPathShape *m_shape;
00068 
00069 private slots:
00070     void angleDeltaChanged(int value);
00071 
00072 private:
00073     void repaintActivePoint();
00074 
00076     KoPathPoint* endPointAtPosition( const QPointF &position );
00077 
00079     bool connectPaths( KoPathShape *pathShape, KoPathPoint *pointAtStart, KoPathPoint *pointAtEnd );
00080 
00081     KoPathPoint *m_activePoint;
00082     KoPathPoint *m_firstPoint;
00083     int m_handleRadius;
00084     bool m_mouseOverFirstPoint;
00085     bool m_pointIsDragged;
00086     KoPathPoint *m_existingStartPoint; 
00087     KoPathPoint *m_existingEndPoint;   
00088     KoPathPoint *m_hoveredPoint; 
00089 
00090     class AngleSnapStrategy;
00091     AngleSnapStrategy *m_angleSnapStrategy;
00092     int m_angleSnappingDelta;
00093 };
00094 #endif
00095