QTfrontend/drawmapscene.h
author nemo
Sun, 03 Jun 2012 22:56:30 -0400
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parent 6952 7f70f37bbf08
child 9080 9b42757d7e71
permissions -rw-r--r--
After experimenting with a long running average at maxed out FPS and a variety of map sizes, 128 seems to actually be a good size to use if only drawing bits of world with stuff in it. 64 actually did even better in some situations, but significantly worse in others (lots of land, zoomed out).
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program 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
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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#ifndef DRAWMAPSCENE_H
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#define DRAWMAPSCENE_H
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#include <QGraphicsScene>
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#include <QPainterPath>
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#include <QGraphicsEllipseItem>
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class QGraphicsPathItem;
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struct PathParams
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{
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    quint8 width;
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    bool erasing;
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    QList<QPoint> points;
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};
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typedef QList<PathParams> Paths;
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class DrawMapScene : public QGraphicsScene
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{
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        Q_OBJECT
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    public:
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        explicit DrawMapScene(QObject *parent = 0);
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        QByteArray encode();
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        void decode(QByteArray data);
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        int pointsCount();
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    signals:
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        void pathChanged();
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    public slots:
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        void undo();
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        void clearMap();
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        void simplifyLast();
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        void setErasing(bool erasing);
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        void showCursor();
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        void hideCursor();
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    private:
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        QPen m_pen;
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        QBrush m_eraser;
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        QBrush m_brush;
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        QGraphicsPathItem  * m_currPath;
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        Paths paths;
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        Paths oldPaths;
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        bool m_isErasing;
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        QList<QGraphicsItem *> oldItems;
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        QGraphicsEllipseItem * m_cursor;
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        bool m_isCursorShown;
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        virtual void mouseMoveEvent(QGraphicsSceneMouseEvent * mouseEvent);
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        virtual void mousePressEvent(QGraphicsSceneMouseEvent * mouseEvent);
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        virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent * mouseEvent);
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        virtual void wheelEvent(QGraphicsSceneWheelEvent *);
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        QPainterPath pointsToPath(const QList<QPoint> points);
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        quint8 serializePenWidth(int width);
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        int deserializePenWidth(quint8 width);
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};
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#endif // DRAWMAPSCENE_H