338 lines
8.7 KiB
C++
338 lines
8.7 KiB
C++
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "stickman.h"
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#include "node.h"
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#include <QPainter>
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#include <QTimer>
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#define _USE_MATH_DEFINES
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#include <math.h>
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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static const qreal Coords[NodeCount * 2] = {
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0.0, -150.0, // head, #0
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0.0, -100.0, // body pentagon, top->bottom, left->right, #1 - 5
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-50.0, -50.0,
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50.0, -50.0,
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-25.0, 50.0,
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25.0, 50.0,
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-100.0, 0.0, // right arm, #6 - 7
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-125.0, 50.0,
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100.0, 0.0, // left arm, #8 - 9
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125.0, 50.0,
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-35.0, 75.0, // lower body, #10 - 11
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35.0, 75.0,
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-25.0, 200.0, // right leg, #12 - 13
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-30.0, 300.0,
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25.0, 200.0, // left leg, #14 - 15
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30.0, 300.0
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};
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static const int Bones[BoneCount * 2] = {
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0, 1, // neck
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1, 2, // body
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1, 3,
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1, 4,
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1, 5,
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2, 3,
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2, 4,
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2, 5,
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3, 4,
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3, 5,
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4, 5,
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2, 6, // right arm
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6, 7,
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3, 8, // left arm
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8, 9,
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4, 10, // lower body
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4, 11,
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5, 10,
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5, 11,
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10, 11,
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10, 12, // right leg
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12, 13,
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11, 14, // left leg
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14, 15
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};
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StickMan::StickMan()
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{
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m_sticks = true;
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m_isDead = false;
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m_pixmap = QPixmap("images/head.png");
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m_penColor = Qt::white;
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m_fillColor = Qt::black;
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// Set up start position of limbs
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for (int i=0; i<NodeCount; ++i) {
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m_nodes[i] = new Node(QPointF(Coords[i * 2], Coords[i * 2 + 1]), this);
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connect(m_nodes[i], SIGNAL(positionChanged()), this, SLOT(childPositionChanged()));
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}
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for (int i=0; i<BoneCount; ++i) {
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int n1 = Bones[i * 2];
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int n2 = Bones[i * 2 + 1];
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Node *node1 = m_nodes[n1];
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Node *node2 = m_nodes[n2];
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QPointF dist = node1->pos() - node2->pos();
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m_perfectBoneLengths[i] = sqrt(pow(dist.x(),2) + pow(dist.y(),2));
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}
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startTimer(10);
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}
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StickMan::~StickMan()
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{
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}
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void StickMan::childPositionChanged()
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{
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prepareGeometryChange();
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}
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void StickMan::setDrawSticks(bool on)
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{
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m_sticks = on;
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for (int i=0;i<nodeCount();++i) {
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Node *node = m_nodes[i];
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node->setVisible(on);
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}
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}
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QRectF StickMan::boundingRect() const
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{
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// account for head radius=50.0 plus pen which is 5.0
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return childrenBoundingRect().adjusted(-55.0, -55.0, 55.0, 55.0);
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}
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int StickMan::nodeCount() const
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{
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return NodeCount;
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}
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Node *StickMan::node(int idx) const
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{
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if (idx >= 0 && idx < NodeCount)
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return m_nodes[idx];
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else
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return 0;
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}
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void StickMan::timerEvent(QTimerEvent *)
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{
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update();
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}
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void StickMan::stabilize()
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{
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static const qreal threshold = 0.001;
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for (int i=0; i<BoneCount; ++i) {
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int n1 = Bones[i * 2];
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int n2 = Bones[i * 2 + 1];
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Node *node1 = m_nodes[n1];
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Node *node2 = m_nodes[n2];
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QPointF pos1 = node1->pos();
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QPointF pos2 = node2->pos();
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QPointF dist = pos1 - pos2;
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qreal length = sqrt(pow(dist.x(),2) + pow(dist.y(),2));
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qreal diff = (length - m_perfectBoneLengths[i]) / length;
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QPointF p = dist * (0.5 * diff);
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if (p.x() > threshold && p.y() > threshold) {
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pos1 -= p;
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pos2 += p;
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node1->setPos(pos1);
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node2->setPos(pos2);
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}
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}
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}
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QPointF StickMan::posFor(int idx) const
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{
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return m_nodes[idx]->pos();
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}
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//#include <QTime>
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void StickMan::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
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{
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/* static int frames = 0;
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static QTime time;
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if (frames++ % 100 == 0) {
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frames = 1;
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time.restart();
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}
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if (time.elapsed() > 0) {
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painter->setPen(Qt::white);
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painter->drawText(0, 0, QString::number(frames / (time.elapsed() / 1000.0)));
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}*/
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stabilize();
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if (m_sticks) {
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painter->setPen(Qt::white);
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for (int i=0; i<BoneCount; ++i) {
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int n1 = Bones[i * 2];
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int n2 = Bones[i * 2 + 1];
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Node *node1 = m_nodes[n1];
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Node *node2 = m_nodes[n2];
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painter->drawLine(node1->pos(), node2->pos());
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}
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} else {
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// first bone is neck and will be used for head
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QPainterPath path;
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path.moveTo(posFor(0));
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path.lineTo(posFor(1));
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// right arm
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path.lineTo(posFor(2));
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path.lineTo(posFor(6));
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path.lineTo(posFor(7));
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// left arm
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path.moveTo(posFor(3));
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path.lineTo(posFor(8));
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path.lineTo(posFor(9));
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// body
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path.moveTo(posFor(2));
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path.lineTo(posFor(4));
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path.lineTo(posFor(10));
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path.lineTo(posFor(11));
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path.lineTo(posFor(5));
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path.lineTo(posFor(3));
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path.lineTo(posFor(1));
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// right leg
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path.moveTo(posFor(10));
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path.lineTo(posFor(12));
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path.lineTo(posFor(13));
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// left leg
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path.moveTo(posFor(11));
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path.lineTo(posFor(14));
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path.lineTo(posFor(15));
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painter->setPen(QPen(m_penColor, 5.0, Qt::SolidLine, Qt::RoundCap));
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painter->drawPath(path);
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{
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int n1 = Bones[0];
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int n2 = Bones[1];
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Node *node1 = m_nodes[n1];
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Node *node2 = m_nodes[n2];
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QPointF dist = node2->pos() - node1->pos();
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qreal sinAngle = dist.x() / sqrt(pow(dist.x(), 2) + pow(dist.y(), 2));
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qreal angle = asin(sinAngle) * 180.0 / M_PI;
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QPointF headPos = node1->pos();
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painter->translate(headPos);
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painter->rotate(-angle);
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painter->setBrush(m_fillColor);
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painter->drawEllipse(QPointF(0,0), 50.0, 50.0);
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painter->setBrush(m_penColor);
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painter->setPen(QPen(m_penColor, 2.5, Qt::SolidLine, Qt::RoundCap));
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// eyes
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if (m_isDead) {
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painter->drawLine(-30.0, -30.0, -20.0, -20.0);
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painter->drawLine(-20.0, -30.0, -30.0, -20.0);
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painter->drawLine(20.0, -30.0, 30.0, -20.0);
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painter->drawLine(30.0, -30.0, 20.0, -20.0);
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} else {
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painter->drawChord(QRectF(-30.0, -30.0, 25.0, 70.0), 30.0*16, 120.0*16);
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painter->drawChord(QRectF(5.0, -30.0, 25.0, 70.0), 30.0*16, 120.0*16);
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}
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// mouth
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if (m_isDead) {
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painter->drawLine(-28.0, 2.0, 29.0, 2.0);
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} else {
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painter->setBrush(QColor(128, 0, 64 ));
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painter->drawChord(QRectF(-28.0, 2.0-55.0/2.0, 57.0, 55.0), 0.0, -180.0*16);
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}
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// pupils
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if (!m_isDead) {
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painter->setPen(QPen(m_fillColor, 1.0, Qt::SolidLine, Qt::RoundCap));
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painter->setBrush(m_fillColor);
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painter->drawEllipse(QPointF(-12.0, -25.0), 5.0, 5.0);
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painter->drawEllipse(QPointF(22.0, -25.0), 5.0, 5.0);
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}
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}
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}
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}
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