don't attempt to prettify alpha of single-pixel textures (segfault with "digital" theme from forums)
/*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2015 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DRAWMAPSCENE_H
#define DRAWMAPSCENE_H
#include <QGraphicsScene>
#include <QPainterPath>
#include <QGraphicsEllipseItem>
class QGraphicsPathItem;
struct PathParams
{
quint8 width;
bool erasing;
QPoint initialPoint;
QList<QPoint> points;
};
typedef QList<PathParams> Paths;
class DrawMapScene : public QGraphicsScene
{
Q_OBJECT
public:
enum PathType {
Polyline = 0,
Rectangle = 1,
Ellipse = 2
};
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 optimize();
void setErasing(bool erasing);
void showCursor();
void hideCursor();
void setPathType(PathType pathType);
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;
QByteArray m_specialPoints;
PathType m_pathType;
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);
QList<QPointF> makeEllipse(const QPointF & center, const QPointF & corner);
QPointF putSomeConstraints(const QPointF & initialPoint, const QPointF & point);
};
#endif // DRAWMAPSCENE_H