QTfrontend/drawmapscene.h
author Mitchell Kember <mk12360@gmail.com>
Fri, 30 Nov 2012 20:00:53 -0500
changeset 8149 237802cf4610
parent 6952 7f70f37bbf08
child 9080 9b42757d7e71
permissions -rw-r--r--
Google Code-in: Center help text field Modifies the grid layout slightly so that the help text which appears when hovering over certain elements is centered with respect to the window, even when there are more buttons on one side. https://google-melange.appspot.com/gci/task/view/google/gci2012/7968226

/*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#ifndef DRAWMAPSCENE_H
#define DRAWMAPSCENE_H

#include <QGraphicsScene>
#include <QPainterPath>
#include <QGraphicsEllipseItem>

class QGraphicsPathItem;

struct PathParams
{
    quint8 width;
    bool erasing;
    QList<QPoint> points;
};

typedef QList<PathParams> Paths;

class DrawMapScene : public QGraphicsScene
{
        Q_OBJECT
    public:
        explicit DrawMapScene(QObject *parent = 0);

        QByteArray encode();
        void decode(QByteArray data);
        int pointsCount();

    signals:
        void pathChanged();

    public slots:
        void undo();
        void clearMap();
        void simplifyLast();
        void setErasing(bool erasing);
        void showCursor();
        void hideCursor();

    private:
        QPen m_pen;
        QBrush m_eraser;
        QBrush m_brush;
        QGraphicsPathItem  * m_currPath;
        Paths paths;
        Paths oldPaths;
        bool m_isErasing;
        QList<QGraphicsItem *> oldItems;
        QGraphicsEllipseItem * m_cursor;
        bool m_isCursorShown;

        virtual void mouseMoveEvent(QGraphicsSceneMouseEvent * mouseEvent);
        virtual void mousePressEvent(QGraphicsSceneMouseEvent * mouseEvent);
        virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent * mouseEvent);
        virtual void wheelEvent(QGraphicsSceneWheelEvent *);

        QPainterPath pointsToPath(const QList<QPoint> points);

        quint8 serializePenWidth(int width);
        int deserializePenWidth(quint8 width);
};

#endif // DRAWMAPSCENE_H