QTfrontend/drawmapscene.cpp
author unc0rr
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branch0.9.20
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Uberfix. TODO: ask fpc guys wtf.
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2013 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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#include <QGraphicsSceneMouseEvent>
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#include <QGraphicsPathItem>
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#include <QtEndian>
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#include <QDebug>
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#include <QTransform>
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#include <math.h>
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#include "drawmapscene.h"
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template <class T> T sqr(const T & x)
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{
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    return x*x;
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}
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DrawMapScene::DrawMapScene(QObject *parent) :
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    QGraphicsScene(parent),
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    m_pen(Qt::yellow),
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    m_brush(Qt::yellow),
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    m_cursor(new QGraphicsEllipseItem(-0.5, -0.5, 1, 1))
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{
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    setSceneRect(0, 0, 4096, 2048);
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    QLinearGradient gradient(0, 0, 0, 2048);
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    gradient.setColorAt(0, QColor(60, 60, 155));
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    gradient.setColorAt(1, QColor(155, 155, 60));
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    m_eraser = QBrush(gradient);
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    setBackgroundBrush(m_eraser);
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    m_isErasing = false;
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    m_pathType = Polyline;
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    m_pen.setWidth(76);
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    m_pen.setJoinStyle(Qt::RoundJoin);
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    m_pen.setCapStyle(Qt::RoundCap);
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    m_currPath = 0;
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    m_isCursorShown = false;
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    m_cursor->setPen(QPen(Qt::green));
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    m_cursor->setZValue(1);
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    m_cursor->setScale(m_pen.width());
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}
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void DrawMapScene::mouseMoveEvent(QGraphicsSceneMouseEvent * mouseEvent)
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{
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    if(m_currPath && (mouseEvent->buttons() & Qt::LeftButton))
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    {
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        QPainterPath path = m_currPath->path();
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        QPointF currentPos = mouseEvent->scenePos();
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        if(mouseEvent->modifiers() & Qt::ControlModifier)
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            currentPos = putSomeConstraints(paths.first().initialPoint, currentPos);
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        switch (m_pathType)
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        {
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        case Polyline:
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            if(mouseEvent->modifiers() & Qt::ControlModifier)
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            {
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                int c = path.elementCount();
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                path.setElementPositionAt(c - 1, currentPos.x(), currentPos.y());
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            }
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            else
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            {
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                path.lineTo(currentPos);
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                paths.first().points.append(mouseEvent->scenePos().toPoint());
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            }
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            break;
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        case Rectangle: {
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            path = QPainterPath();
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            QPointF p1 = paths.first().initialPoint;
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            QPointF p2 = currentPos;
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            path.moveTo(p1);
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            path.lineTo(p1.x(), p2.y());
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            path.lineTo(p2);
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            path.lineTo(p2.x(), p1.y());
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            path.lineTo(p1);
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            break;
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            }
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        case Ellipse: {
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            path = QPainterPath();
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            QList<QPointF> points = makeEllipse(paths.first().initialPoint, currentPos);
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            path.addPolygon(QPolygonF(QVector<QPointF>::fromList(points)));
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            break;
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        }
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        }
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        m_currPath->setPath(path);
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        emit pathChanged();
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    }
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    if(!m_isCursorShown)
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        showCursor();
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    m_cursor->setPos(mouseEvent->scenePos());
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}
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void DrawMapScene::mousePressEvent(QGraphicsSceneMouseEvent * mouseEvent)
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{
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    m_currPath = addPath(QPainterPath(), m_pen);
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    QPainterPath path = m_currPath->path();
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    QPointF p = mouseEvent->scenePos();
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    p += QPointF(0.01, 0.01);
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    path.moveTo(p);
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    path.lineTo(mouseEvent->scenePos());
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    PathParams params;
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    params.width = serializePenWidth(m_pen.width());
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    params.erasing = m_isErasing;
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    params.initialPoint = mouseEvent->scenePos().toPoint();
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    params.points = QList<QPoint>() << params.initialPoint;
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    paths.prepend(params);
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    m_currPath->setPath(path);
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    emit pathChanged();
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}
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void DrawMapScene::mouseReleaseEvent(QGraphicsSceneMouseEvent * mouseEvent)
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{
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    if (m_currPath)
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    {
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        QPointF currentPos = mouseEvent->scenePos();
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        if(mouseEvent->modifiers() & Qt::ControlModifier)
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            currentPos = putSomeConstraints(paths.first().initialPoint, currentPos);
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        switch (m_pathType)
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        {
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        case Polyline: {
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            QPainterPath path = m_currPath->path();
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            path.lineTo(mouseEvent->scenePos());
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            paths.first().points.append(currentPos.toPoint());
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            m_currPath->setPath(path);
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            simplifyLast();
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            break;
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        }
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        case Rectangle: {
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            QPoint p1 = paths.first().initialPoint;
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            QPoint p2 = currentPos.toPoint();
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            QList<QPoint> rpoints;
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            rpoints << p1 << QPoint(p1.x(), p2.y()) << p2 << QPoint(p2.x(), p1.y()) << p1;
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            paths.first().points = rpoints;
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            break;
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        }
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        case Ellipse:
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            QPoint p1 = paths.first().initialPoint;
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            QPoint p2 = currentPos.toPoint();
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            QList<QPointF> points = makeEllipse(p1, p2);
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            QList<QPoint> epoints;
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            foreach(const QPointF & p, points)
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                epoints.append(p.toPoint());
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            paths.first().points = epoints;
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            break;
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        }
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        m_currPath = 0;
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unC0Rr
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f92d43816186 Some tweaks to ellipse code to produce less points
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        emit pathChanged();
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b7483e29ea8c Fixing issue 211. Check to see if m_currPath is NULL before doing anything in mouseReleaseEvent. Multiple mouse release events can occur after a mouse press and before the next mouse press if you mouse-click really fast.
Zorg <zorgiepoo@gmail.com>
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    }
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}
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void DrawMapScene::wheelEvent(QGraphicsSceneWheelEvent * wheelEvent)
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{
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    if(wheelEvent->delta() > 0 && m_pen.width() < 516)
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        m_pen.setWidth(m_pen.width() + 10);
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    else if(wheelEvent->delta() < 0 && m_pen.width() >= 16)
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        m_pen.setWidth(m_pen.width() - 10);
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    m_cursor->setScale(m_pen.width());
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    if(m_currPath)
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    {
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        m_currPath->setPen(m_pen);
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        paths.first().width = serializePenWidth(m_pen.width());
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    }
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}
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void DrawMapScene::showCursor()
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{
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    if(!m_isCursorShown)
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        addItem(m_cursor);
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    m_isCursorShown = true;
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}
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14a230552c2e Cursor for DrawMapScene. Feel free to ajust its look.
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void DrawMapScene::hideCursor()
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{
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    if(m_isCursorShown)
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        removeItem(m_cursor);
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    m_isCursorShown = false;
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}
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4426
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void DrawMapScene::undo()
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3225ea34e415 Some basic functionality
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{
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    // cursor is a part of items()
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    if(m_isCursorShown)
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        return;
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    if(paths.size())
4427
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    {
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        removeItem(items().first());
4439
27a896207aae Some more improvements
unC0Rr
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        paths.removeFirst();
4427
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unc0rr
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c5193713055f Basic encoding of drawn map
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        emit pathChanged();
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    }
5858
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    else if(oldItems.size())
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    {
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        while(oldItems.size())
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            addItem(oldItems.takeFirst());
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        paths = oldPaths;
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        emit pathChanged();
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    }
4424
3225ea34e415 Some basic functionality
unc0rr
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}
4427
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void DrawMapScene::clearMap()
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{
6934
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unc0rr
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    // cursor is a part of items()
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unc0rr
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    if(m_isCursorShown)
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        return;
14a230552c2e Cursor for DrawMapScene. Feel free to ajust its look.
unc0rr
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sheepluva
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    // don't clear if already cleared
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    if(!items().size())
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        return;
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265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
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    m_specialPoints.clear();
5858
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    oldItems.clear();
1f4a8cf9efcb hand drawn map editor: allow "undo" after "clear"
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1f4a8cf9efcb hand drawn map editor: allow "undo" after "clear"
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    // do this since clear() would _destroy_ all items
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unc0rr
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    for(int i = paths.size() - 1; i >= 0; --i)
6616
f77bb02b669f astyle -C -S -L -N --style=allman --recursive "QTfrontend/*.cpp" "QTfrontend/*.h"
nemo
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    {
5858
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        oldItems.push_front(items().first());
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        removeItem(items().first());
1f4a8cf9efcb hand drawn map editor: allow "undo" after "clear"
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   254
    }
1f4a8cf9efcb hand drawn map editor: allow "undo" after "clear"
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   255
9483
14ad1ac00ac9 Modify Racer script so it could work with special points
unc0rr
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   256
    items().clear();
14ad1ac00ac9 Modify Racer script so it could work with special points
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   257
5858
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    oldPaths = paths;
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   259
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5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
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    paths.clear();
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
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5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
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    emit pathChanged();
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
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   263
}
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
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   264
6873
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unc0rr
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   265
30840365af0a Eraser tool
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   266
void DrawMapScene::setErasing(bool erasing)
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{
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   268
    m_isErasing = erasing;
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   269
    if(erasing)
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        m_pen.setBrush(m_eraser);
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    else
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        m_pen.setBrush(m_brush);
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}
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QByteArray DrawMapScene::encode()
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{
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    QByteArray b(m_specialPoints);
4427
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4666
34551d8639cf - Fix encoding function to iterate reversed list
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   279
    for(int i = paths.size() - 1; i >= 0; --i)
4427
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   280
    {
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   281
        int cnt = 0;
6873
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   282
        PathParams params = paths.at(i);
30840365af0a Eraser tool
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   283
        foreach(QPoint point, params.points)
4427
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   284
        {
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   285
            qint16 px = qToBigEndian((qint16)point.x());
c5193713055f Basic encoding of drawn map
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   286
            qint16 py = qToBigEndian((qint16)point.y());
6781
23f627ba8ee9 Variable pen width
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   287
            quint8 flags = 0;
7298
a5f2fa95e711 Don't set erasing flag when it is unnecessary so hwmap could compress better
unc0rr
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   288
            if(!cnt)
a5f2fa95e711 Don't set erasing flag when it is unnecessary so hwmap could compress better
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   289
            {
a5f2fa95e711 Don't set erasing flag when it is unnecessary so hwmap could compress better
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   290
                flags = 0x80 + params.width;
a5f2fa95e711 Don't set erasing flag when it is unnecessary so hwmap could compress better
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   291
                if(params.erasing) flags |= 0x40;
a5f2fa95e711 Don't set erasing flag when it is unnecessary so hwmap could compress better
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   292
            }
4427
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   293
            b.append((const char *)&px, 2);
c5193713055f Basic encoding of drawn map
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   294
            b.append((const char *)&py, 2);
4457
ffb766e85150 - Change painted map file format
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diff changeset
   295
            b.append((const char *)&flags, 1);
4427
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   296
c5193713055f Basic encoding of drawn map
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   297
            ++cnt;
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   298
        }
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   299
c5193713055f Basic encoding of drawn map
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   300
    }
c5193713055f Basic encoding of drawn map
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   301
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   302
    return b;
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   303
}
4434
34c305fbc63c Simple simplify() function
unc0rr
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   304
4442
f8424e1bc936 - Implement decode() function.
unc0rr
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   305
void DrawMapScene::decode(QByteArray data)
f8424e1bc936 - Implement decode() function.
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   306
{
6873
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   307
    bool erasing = m_isErasing;
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diff changeset
   308
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   309
    oldItems.clear();
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   310
    oldPaths.clear();
4442
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   311
    clear();
f8424e1bc936 - Implement decode() function.
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   312
    paths.clear();
9472
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
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   313
    m_specialPoints.clear();
4442
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unc0rr
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   314
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   315
    PathParams params;
4442
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   316
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265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
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   317
    bool isSpecial = true;
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   318
4442
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   319
    while(data.size() >= 5)
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   320
    {
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   321
        qint16 px = qFromBigEndian(*(qint16 *)data.data());
f8424e1bc936 - Implement decode() function.
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   322
        data.remove(0, 2);
f8424e1bc936 - Implement decode() function.
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   323
        qint16 py = qFromBigEndian(*(qint16 *)data.data());
f8424e1bc936 - Implement decode() function.
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   324
        data.remove(0, 2);
4457
ffb766e85150 - Change painted map file format
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   325
        quint8 flags = *(quint8 *)data.data();
ffb766e85150 - Change painted map file format
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   326
        data.remove(0, 1);
9472
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
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   327
        qDebug() << px << py;
6781
23f627ba8ee9 Variable pen width
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   328
        if(flags & 0x80)
4442
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unc0rr
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   329
        {
9472
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
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   330
            isSpecial = false;
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
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   331
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   332
            if(params.points.size())
6781
23f627ba8ee9 Variable pen width
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diff changeset
   333
            {
6873
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   334
                addPath(pointsToPath(params.points), m_pen);
6781
23f627ba8ee9 Variable pen width
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diff changeset
   335
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   336
                paths.prepend(params);
4666
34551d8639cf - Fix encoding function to iterate reversed list
unc0rr
parents: 4658
diff changeset
   337
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   338
                params.points.clear();
6781
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   339
            }
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   340
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   341
            quint8 penWidth = flags & 0x3f;
6781
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   342
            m_pen.setWidth(deserializePenWidth(penWidth));
7146
a822413207c9 Oops, forgot to set 'erasing' flag on decoding
unc0rr
parents: 6952
diff changeset
   343
            params.erasing = flags & 0x40;
a822413207c9 Oops, forgot to set 'erasing' flag on decoding
unc0rr
parents: 6952
diff changeset
   344
            if(params.erasing)
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   345
                m_pen.setBrush(m_eraser);
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   346
            else
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   347
                m_pen.setBrush(m_brush);
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   348
            params.width = penWidth;
9472
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   349
        } else
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   350
            if(isSpecial)
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   351
            {
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   352
                QPainterPath path;
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   353
                path.addEllipse(QPointF(px, py), 10, 10);
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   354
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   355
                addPath(path);
4442
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   356
9472
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   357
                qint16 x = qToBigEndian(px);
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   358
                qint16 y = qToBigEndian(py);
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   359
                m_specialPoints.append((const char *)&x, 2);
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   360
                m_specialPoints.append((const char *)&y, 2);
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   361
                m_specialPoints.append((const char *)&flags, 1);
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   362
            }
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   363
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   364
        if(!isSpecial)
265e5997580e Incomplete implementation of 'special points' in drawn maps (crashes engine)
unc0rr
parents: 9080
diff changeset
   365
            params.points.append(QPoint(px, py));
4666
34551d8639cf - Fix encoding function to iterate reversed list
unc0rr
parents: 4658
diff changeset
   366
    }
34551d8639cf - Fix encoding function to iterate reversed list
unc0rr
parents: 4658
diff changeset
   367
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   368
    if(params.points.size())
4666
34551d8639cf - Fix encoding function to iterate reversed list
unc0rr
parents: 4658
diff changeset
   369
    {
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   370
        addPath(pointsToPath(params.points), m_pen);
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   371
        paths.prepend(params);
4442
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   372
    }
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4520
diff changeset
   373
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4520
diff changeset
   374
    emit pathChanged();
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   375
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   376
    setErasing(erasing);
4442
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   377
}
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   378
4439
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   379
void DrawMapScene::simplifyLast()
4434
34c305fbc63c Simple simplify() function
unc0rr
parents: 4427
diff changeset
   380
{
4560
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4520
diff changeset
   381
    if(!paths.size()) return;
5d6c7f88db73 - Some work on drawMap widget and scene to allow undo, clear, save and load operations
unc0rr
parents: 4520
diff changeset
   382
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   383
    QList<QPoint> points = paths.at(0).points;
4439
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   384
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   385
    QPoint prevPoint = points.first();
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   386
    int i = 1;
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   387
    while(i < points.size())
4434
34c305fbc63c Simple simplify() function
unc0rr
parents: 4427
diff changeset
   388
    {
4471
220d44cb8659 Always keep last point of drawn polyline
unc0rr
parents: 4457
diff changeset
   389
        if( (i != points.size() - 1)
6616
f77bb02b669f astyle -C -S -L -N --style=allman --recursive "QTfrontend/*.cpp" "QTfrontend/*.h"
nemo
parents: 5858
diff changeset
   390
                && (sqr(prevPoint.x() - points[i].x()) + sqr(prevPoint.y() - points[i].y()) < 1000)
4471
220d44cb8659 Always keep last point of drawn polyline
unc0rr
parents: 4457
diff changeset
   391
          )
4439
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   392
            points.removeAt(i);
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   393
        else
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   394
        {
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   395
            prevPoint = points[i];
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   396
            ++i;
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   397
        }
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   398
    }
4434
34c305fbc63c Simple simplify() function
unc0rr
parents: 4427
diff changeset
   399
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   400
    paths[0].points = points;
4439
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   401
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   402
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   403
    // redraw path
27a896207aae Some more improvements
unC0Rr
parents: 4434
diff changeset
   404
    {
6934
14a230552c2e Cursor for DrawMapScene. Feel free to ajust its look.
unc0rr
parents: 6873
diff changeset
   405
        QGraphicsPathItem * pathItem = static_cast<QGraphicsPathItem *>(items()[m_isCursorShown ? 1 : 0]);
6873
30840365af0a Eraser tool
unc0rr
parents: 6784
diff changeset
   406
        pathItem->setPath(pointsToPath(paths[0].points));
4434
34c305fbc63c Simple simplify() function
unc0rr
parents: 4427
diff changeset
   407
    }
34c305fbc63c Simple simplify() function
unc0rr
parents: 4427
diff changeset
   408
}
4442
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   409
6935
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   410
int DrawMapScene::pointsCount()
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   411
{
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   412
    int cnt = 0;
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   413
    foreach(PathParams p, paths)
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   414
        cnt += p.points.size();
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   415
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   416
    return cnt;
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   417
}
472ed92c4173 Show number of points in drawn map
unc0rr
parents: 6934
diff changeset
   418
4442
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   419
QPainterPath DrawMapScene::pointsToPath(const QList<QPoint> points)
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   420
{
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   421
    QPainterPath path;
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   422
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   423
    if(points.size())
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   424
    {
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   425
        QPointF p = points[0] + QPointF(0.01, 0.01);
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   426
        path.moveTo(p);
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   427
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   428
        foreach(QPoint p, points)
6616
f77bb02b669f astyle -C -S -L -N --style=allman --recursive "QTfrontend/*.cpp" "QTfrontend/*.h"
nemo
parents: 5858
diff changeset
   429
        path.lineTo(p);
4442
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   430
    }
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   431
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   432
    return path;
f8424e1bc936 - Implement decode() function.
unc0rr
parents: 4439
diff changeset
   433
}
6781
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   434
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   435
quint8 DrawMapScene::serializePenWidth(int width)
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   436
{
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   437
    return (width - 6) / 10;
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   438
}
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   439
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   440
int DrawMapScene::deserializePenWidth(quint8 width)
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   441
{
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   442
    return width * 10 + 6;
23f627ba8ee9 Variable pen width
unc0rr
parents: 6700
diff changeset
   443
}
9551
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   444
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   445
void DrawMapScene::setPathType(PathType pathType)
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   446
{
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   447
    m_pathType = pathType;
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   448
}
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   449
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   450
QList<QPointF> DrawMapScene::makeEllipse(const QPointF &center, const QPointF &corner)
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   451
{
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   452
    QList<QPointF> l;
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   453
    qreal rx = qAbs(center.x() - corner.x());
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   454
    qreal ry = qAbs(center.y() - corner.y());
9553
f92d43816186 Some tweaks to ellipse code to produce less points
unc0rr
parents: 9551
diff changeset
   455
    qreal r = qMax(rx, ry);
9551
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   456
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   457
    if(r < 4)
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   458
    {
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   459
        l.append(center);
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   460
    } else
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   461
    {
9553
f92d43816186 Some tweaks to ellipse code to produce less points
unc0rr
parents: 9551
diff changeset
   462
        qreal angleDelta = qMax(0.1, qMin(0.7, 120 / r));
9551
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   463
        for(qreal angle = 0.0; angle < 2*M_PI; angle += angleDelta)
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   464
            l.append(center + QPointF(rx * cos(angle), ry * sin(angle)));
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   465
        l.append(l.first());
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   466
    }
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   467
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   468
    return l;
61f160dfd0f1 Draw rectangles and ellipses!
unc0rr
parents: 9483
diff changeset
   469
}
9555
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   470
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   471
QPointF DrawMapScene::putSomeConstraints(const QPointF &initialPoint, const QPointF &point)
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   472
{
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   473
    QPointF vector = point - initialPoint;
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   474
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   475
    for(int angle = 0; angle < 180; angle += 15)
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   476
    {
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   477
        QTransform transform;
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   478
        transform.rotate(angle);
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   479
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   480
        QPointF rotated = transform.map(vector);
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   481
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   482
        if(rotated.x() == 0) return point;
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   483
        if(qAbs(rotated.y() / rotated.x()) < 0.05) return initialPoint + transform.inverted().map(QPointF(rotated.x(), 0));
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   484
    }
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   485
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   486
    return point;
485b424be769 uhm... a feature
unc0rr
parents: 9553
diff changeset
   487
}