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-rw-r--r--examples/widgets/animation/stickman/stickman.cpp329
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diff --git a/examples/widgets/animation/stickman/stickman.cpp b/examples/widgets/animation/stickman/stickman.cpp
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--- a/examples/widgets/animation/stickman/stickman.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "stickman.h"
-#include "node.h"
-
-#include <QPainter>
-#include <QtMath>
-
-static constexpr qreal Coords[NodeCount * 2] = {
- 0.0, -150.0, // head, #0
-
- 0.0, -100.0, // body pentagon, top->bottom, left->right, #1 - 5
- -50.0, -50.0,
- 50.0, -50.0,
- -25.0, 50.0,
- 25.0, 50.0,
-
- -100.0, 0.0, // right arm, #6 - 7
- -125.0, 50.0,
-
- 100.0, 0.0, // left arm, #8 - 9
- 125.0, 50.0,
-
- -35.0, 75.0, // lower body, #10 - 11
- 35.0, 75.0,
-
- -25.0, 200.0, // right leg, #12 - 13
- -30.0, 300.0,
-
- 25.0, 200.0, // left leg, #14 - 15
- 30.0, 300.0
-
-};
-
-static constexpr int Bones[BoneCount * 2] = {
- 0, 1, // neck
-
- 1, 2, // body
- 1, 3,
- 1, 4,
- 1, 5,
- 2, 3,
- 2, 4,
- 2, 5,
- 3, 4,
- 3, 5,
- 4, 5,
-
- 2, 6, // right arm
- 6, 7,
-
- 3, 8, // left arm
- 8, 9,
-
- 4, 10, // lower body
- 4, 11,
- 5, 10,
- 5, 11,
- 10, 11,
-
- 10, 12, // right leg
- 12, 13,
-
- 11, 14, // left leg
- 14, 15
-
-};
-
-StickMan::StickMan()
-{
- // Set up start position of limbs
- for (int i = 0; i < NodeCount; ++i) {
- m_nodes[i] = new Node(QPointF(Coords[i * 2], Coords[i * 2 + 1]), this);
- connect(m_nodes[i], &Node::positionChanged, this, &StickMan::childPositionChanged);
- }
-
- for (int i = 0; i < BoneCount; ++i) {
- int n1 = Bones[i * 2];
- int n2 = Bones[i * 2 + 1];
-
- Node *node1 = m_nodes[n1];
- Node *node2 = m_nodes[n2];
-
- QPointF dist = node1->pos() - node2->pos();
- m_perfectBoneLengths[i] = sqrt(pow(dist.x(), 2) + pow(dist.y(), 2));
- }
-
- startTimer(10);
-}
-
-void StickMan::childPositionChanged()
-{
- prepareGeometryChange();
-}
-
-void StickMan::setDrawSticks(bool on)
-{
- m_sticks = on;
- for (int i = 0; i < nodeCount(); ++i) {
- Node *node = m_nodes[i];
- node->setVisible(on);
- }
-}
-
-QRectF StickMan::boundingRect() const
-{
- // account for head radius=50.0 plus pen which is 5.0
- return childrenBoundingRect().adjusted(-55.0, -55.0, 55.0, 55.0);
-}
-
-int StickMan::nodeCount() const
-{
- return NodeCount;
-}
-
-Node *StickMan::node(int idx) const
-{
- if (idx >= 0 && idx < NodeCount)
- return m_nodes[idx];
- return nullptr;
-}
-
-void StickMan::timerEvent(QTimerEvent *)
-{
- update();
-}
-
-void StickMan::stabilize()
-{
- static const qreal threshold = 0.001;
-
- for (int i = 0; i < BoneCount; ++i) {
- int n1 = Bones[i * 2];
- int n2 = Bones[i * 2 + 1];
-
- Node *node1 = m_nodes[n1];
- Node *node2 = m_nodes[n2];
-
- QPointF pos1 = node1->pos();
- QPointF pos2 = node2->pos();
-
- QPointF dist = pos1 - pos2;
- qreal length = sqrt(pow(dist.x(),2) + pow(dist.y(),2));
- qreal diff = (length - m_perfectBoneLengths[i]) / length;
-
- QPointF p = dist * (0.5 * diff);
- if (p.x() > threshold && p.y() > threshold) {
- pos1 -= p;
- pos2 += p;
-
- node1->setPos(pos1);
- node2->setPos(pos2);
- }
- }
-}
-
-QPointF StickMan::posFor(int idx) const
-{
- return m_nodes[idx]->pos();
-}
-
-//#include <QTime>
-void StickMan::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
-{
- /* static int frames = 0;
- static QTime time;
- if (frames++ % 100 == 0) {
- frames = 1;
- time.restart();
- }
-
- if (time.elapsed() > 0) {
- painter->setPen(Qt::white);
- painter->drawText(0, 0, QString::number(frames / (time.elapsed() / 1000.0)));
- }*/
-
- stabilize();
- if (m_sticks) {
- painter->setPen(Qt::white);
- for (int i = 0; i < BoneCount; ++i) {
- int n1 = Bones[i * 2];
- int n2 = Bones[i * 2 + 1];
-
- Node *node1 = m_nodes[n1];
- Node *node2 = m_nodes[n2];
-
- painter->drawLine(node1->pos(), node2->pos());
- }
- } else {
- // first bone is neck and will be used for head
-
- QPainterPath path;
- path.moveTo(posFor(0));
- path.lineTo(posFor(1));
-
- // right arm
- path.lineTo(posFor(2));
- path.lineTo(posFor(6));
- path.lineTo(posFor(7));
-
- // left arm
- path.moveTo(posFor(3));
- path.lineTo(posFor(8));
- path.lineTo(posFor(9));
-
- // body
- path.moveTo(posFor(2));
- path.lineTo(posFor(4));
- path.lineTo(posFor(10));
- path.lineTo(posFor(11));
- path.lineTo(posFor(5));
- path.lineTo(posFor(3));
- path.lineTo(posFor(1));
-
- // right leg
- path.moveTo(posFor(10));
- path.lineTo(posFor(12));
- path.lineTo(posFor(13));
-
- // left leg
- path.moveTo(posFor(11));
- path.lineTo(posFor(14));
- path.lineTo(posFor(15));
-
- painter->setPen(QPen(m_penColor, 5.0, Qt::SolidLine, Qt::RoundCap));
- painter->drawPath(path);
-
- {
- int n1 = Bones[0];
- int n2 = Bones[1];
- Node *node1 = m_nodes[n1];
- Node *node2 = m_nodes[n2];
-
- QPointF dist = node2->pos() - node1->pos();
-
- qreal sinAngle = dist.x() / sqrt(pow(dist.x(), 2) + pow(dist.y(), 2));
- qreal angle = qRadiansToDegrees(asin(sinAngle));
-
- QPointF headPos = node1->pos();
- painter->translate(headPos);
- painter->rotate(-angle);
-
- painter->setBrush(m_fillColor);
- painter->drawEllipse(QPointF(0,0), 50.0, 50.0);
-
- painter->setBrush(m_penColor);
- painter->setPen(QPen(m_penColor, 2.5, Qt::SolidLine, Qt::RoundCap));
-
- // eyes
- if (m_isDead) {
- painter->drawLine(-30.0, -30.0, -20.0, -20.0);
- painter->drawLine(-20.0, -30.0, -30.0, -20.0);
-
- painter->drawLine(20.0, -30.0, 30.0, -20.0);
- painter->drawLine(30.0, -30.0, 20.0, -20.0);
- } else {
- painter->drawChord(QRectF(-30.0, -30.0, 25.0, 70.0), 30.0*16, 120.0*16);
- painter->drawChord(QRectF(5.0, -30.0, 25.0, 70.0), 30.0*16, 120.0*16);
- }
-
- // mouth
- if (m_isDead) {
- painter->drawLine(-28.0, 2.0, 29.0, 2.0);
- } else {
- painter->setBrush(QColor(128, 0, 64 ));
- painter->drawChord(QRectF(-28.0, 2.0-55.0/2.0, 57.0, 55.0), 0.0, -180.0*16);
- }
-
- // pupils
- if (!m_isDead) {
- painter->setPen(QPen(m_fillColor, 1.0, Qt::SolidLine, Qt::RoundCap));
- painter->setBrush(m_fillColor);
- painter->drawEllipse(QPointF(-12.0, -25.0), 5.0, 5.0);
- painter->drawEllipse(QPointF(22.0, -25.0), 5.0, 5.0);
- }
- }
- }
-}
-
-
-
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