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Diffstat (limited to 'examples/widgets/graphicsview/boxes/scene.cpp')
| -rw-r--r-- | examples/widgets/graphicsview/boxes/scene.cpp | 1028 |
1 files changed, 0 insertions, 1028 deletions
diff --git a/examples/widgets/graphicsview/boxes/scene.cpp b/examples/widgets/graphicsview/boxes/scene.cpp deleted file mode 100644 index b344f65561..0000000000 --- a/examples/widgets/graphicsview/boxes/scene.cpp +++ /dev/null @@ -1,1028 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the demonstration applications 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 "scene.h" - -#include <QMatrix4x4> -#include <QRandomGenerator> -#include <QVector3D> -#include <qmath.h> - -#include "3rdparty/fbm.h" - -//============================================================================// -// ColorEdit // -//============================================================================// - -ColorEdit::ColorEdit(QRgb initialColor, int id) - : m_color(initialColor), m_id(id) -{ - QHBoxLayout *layout = new QHBoxLayout; - setLayout(layout); - layout->setContentsMargins(0, 0, 0, 0); - - m_lineEdit = new QLineEdit(QString::number(m_color, 16)); - layout->addWidget(m_lineEdit); - - m_button = new QFrame; - QPalette palette = m_button->palette(); - palette.setColor(QPalette::Window, QColor(m_color)); - m_button->setPalette(palette); - m_button->setAutoFillBackground(true); - m_button->setMinimumSize(32, 0); - m_button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred); - m_button->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken); - layout->addWidget(m_button); - - connect(m_lineEdit, &QLineEdit::editingFinished, this, &ColorEdit::editDone); -} - -void ColorEdit::editDone() -{ - bool ok; - QRgb newColor = m_lineEdit->text().toUInt(&ok, 16); - if (ok) - setColor(newColor); -} - -void ColorEdit::mousePressEvent(QMouseEvent *event) -{ - if (event->button() == Qt::LeftButton) { - QColor color(m_color); - QColorDialog dialog(color, nullptr); - dialog.setOption(QColorDialog::ShowAlphaChannel, true); - dialog.move(280, 120); - if (dialog.exec() == QDialog::Rejected) - return; - QRgb newColor = dialog.selectedColor().rgba(); - if (newColor == m_color) - return; - setColor(newColor); - } -} - -void ColorEdit::setColor(QRgb color) -{ - m_color = color; - m_lineEdit->setText(QString::number(m_color, 16)); // "Clean up" text - QPalette palette = m_button->palette(); - palette.setColor(QPalette::Window, QColor(m_color)); - m_button->setPalette(palette); - emit colorChanged(m_color, m_id); -} - -//============================================================================// -// FloatEdit // -//============================================================================// - -FloatEdit::FloatEdit(float initialValue, int id) - : m_value(initialValue), m_id(id) -{ - QHBoxLayout *layout = new QHBoxLayout; - setLayout(layout); - layout->setContentsMargins(0, 0, 0, 0); - - m_lineEdit = new QLineEdit(QString::number(m_value)); - layout->addWidget(m_lineEdit); - - connect(m_lineEdit, &QLineEdit::editingFinished, this, &FloatEdit::editDone); -} - -void FloatEdit::editDone() -{ - bool ok; - float newValue = m_lineEdit->text().toFloat(&ok); - if (ok) { - m_value = newValue; - m_lineEdit->setText(QString::number(m_value)); // "Clean up" text - emit valueChanged(m_value, m_id); - } -} - -//============================================================================// -// TwoSidedGraphicsWidget // -//============================================================================// -void TwoSidedGraphicsWidget::setWidget(int index, QWidget *widget) -{ - if (index < 0 || index >= 2) - { - qWarning("TwoSidedGraphicsWidget::setWidget: Index out of bounds, index == %d", index); - return; - } - - GraphicsWidget *proxy = new GraphicsWidget; - proxy->setWidget(widget); - - delete m_proxyWidgets[index]; - m_proxyWidgets[index] = proxy; - - proxy->setCacheMode(QGraphicsItem::ItemCoordinateCache); - proxy->setZValue(1e30); // Make sure the dialog is drawn on top of all other (OpenGL) items - - if (index != m_current) - proxy->setVisible(false); - - qobject_cast<QGraphicsScene *>(parent())->addItem(proxy); -} - -QWidget *TwoSidedGraphicsWidget::widget(int index) -{ - if (index < 0 || index >= 2) - { - qWarning("TwoSidedGraphicsWidget::widget: Index out of bounds, index == %d", index); - return nullptr; - } - return m_proxyWidgets[index]->widget(); -} - -void TwoSidedGraphicsWidget::flip() -{ - m_delta = (m_current == 0 ? 9 : -9); - animateFlip(); -} - -void TwoSidedGraphicsWidget::animateFlip() -{ - m_angle += m_delta; - if (m_angle == 90) { - int old = m_current; - m_current ^= 1; - m_proxyWidgets[old]->setVisible(false); - m_proxyWidgets[m_current]->setVisible(true); - m_proxyWidgets[m_current]->setGeometry(m_proxyWidgets[old]->geometry()); - } - - QRectF r = m_proxyWidgets[m_current]->boundingRect(); - m_proxyWidgets[m_current]->setTransform(QTransform() - .translate(r.width() / 2, r.height() / 2) - .rotate(m_angle - 180 * m_current, Qt::YAxis) - .translate(-r.width() / 2, -r.height() / 2)); - - if ((m_current == 0 && m_angle > 0) || (m_current == 1 && m_angle < 180)) - QTimer::singleShot(25, this, &TwoSidedGraphicsWidget::animateFlip); -} - -QVariant GraphicsWidget::itemChange(GraphicsItemChange change, const QVariant &value) -{ - if (change == ItemPositionChange && scene()) { - QRectF rect = boundingRect(); - QPointF pos = value.toPointF(); - QRectF sceneRect = scene()->sceneRect(); - if (pos.x() + rect.left() < sceneRect.left()) - pos.setX(sceneRect.left() - rect.left()); - else if (pos.x() + rect.right() >= sceneRect.right()) - pos.setX(sceneRect.right() - rect.right()); - if (pos.y() + rect.top() < sceneRect.top()) - pos.setY(sceneRect.top() - rect.top()); - else if (pos.y() + rect.bottom() >= sceneRect.bottom()) - pos.setY(sceneRect.bottom() - rect.bottom()); - return pos; - } - return QGraphicsProxyWidget::itemChange(change, value); -} - -void GraphicsWidget::resizeEvent(QGraphicsSceneResizeEvent *event) -{ - setCacheMode(QGraphicsItem::NoCache); - setCacheMode(QGraphicsItem::ItemCoordinateCache); - QGraphicsProxyWidget::resizeEvent(event); -} - -void GraphicsWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) -{ - painter->setRenderHint(QPainter::Antialiasing, false); - QGraphicsProxyWidget::paint(painter, option, widget); - //painter->setRenderHint(QPainter::Antialiasing, true); -} - -//============================================================================// -// RenderOptionsDialog // -//============================================================================// - -RenderOptionsDialog::RenderOptionsDialog() - : QDialog(nullptr, Qt::CustomizeWindowHint | Qt::WindowTitleHint) -{ - setWindowOpacity(0.75); - setWindowTitle(tr("Options (double click to flip)")); - QGridLayout *layout = new QGridLayout; - setLayout(layout); - layout->setColumnStretch(1, 1); - - int row = 0; - - QCheckBox *check = new QCheckBox(tr("Dynamic cube map")); - check->setCheckState(Qt::Unchecked); - // Dynamic cube maps are only enabled when multi-texturing and render to texture are available. - check->setEnabled(glActiveTexture && glGenFramebuffersEXT); - connect(check, &QCheckBox::stateChanged, this, &RenderOptionsDialog::dynamicCubemapToggled); - layout->addWidget(check, 0, 0, 1, 2); - ++row; - - // Load all .par files - // .par files have a simple syntax for specifying user adjustable uniform variables. - const QList<QFileInfo> files = QDir(QStringLiteral(":/res/boxes/")) - .entryInfoList({ QStringLiteral("*.par") }, - QDir::Files | QDir::Readable); - - for (const QFileInfo &fileInfo : files) { - QFile file(fileInfo.absoluteFilePath()); - if (file.open(QIODevice::ReadOnly)) { - while (!file.atEnd()) { - QList<QByteArray> tokens = file.readLine().simplified().split(' '); - QList<QByteArray>::const_iterator it = tokens.begin(); - if (it == tokens.end()) - continue; - QByteArray type = *it; - if (++it == tokens.end()) - continue; - QByteArray name = *it; - bool singleElement = (tokens.size() == 3); // type, name and one value - char counter[10] = "000000000"; - int counterPos = 8; // position of last digit - while (++it != tokens.end()) { - m_parameterNames << name; - if (!singleElement) { - m_parameterNames.back() += '['; - m_parameterNames.back() += counter + counterPos; - m_parameterNames.back() += ']'; - int j = 8; // position of last digit - ++counter[j]; - while (j > 0 && counter[j] > '9') { - counter[j] = '0'; - ++counter[--j]; - } - if (j < counterPos) - counterPos = j; - } - - if (type == "color") { - layout->addWidget(new QLabel(m_parameterNames.back())); - bool ok; - ColorEdit *colorEdit = new ColorEdit(it->toUInt(&ok, 16), m_parameterNames.size() - 1); - m_parameterEdits << colorEdit; - layout->addWidget(colorEdit); - connect(colorEdit, &ColorEdit::colorChanged, this, &RenderOptionsDialog::setColorParameter); - ++row; - } else if (type == "float") { - layout->addWidget(new QLabel(m_parameterNames.back())); - bool ok; - FloatEdit *floatEdit = new FloatEdit(it->toFloat(&ok), m_parameterNames.size() - 1); - m_parameterEdits << floatEdit; - layout->addWidget(floatEdit); - connect(floatEdit, &FloatEdit::valueChanged, this, &RenderOptionsDialog::setFloatParameter); - ++row; - } - } - } - file.close(); - } - } - - layout->addWidget(new QLabel(tr("Texture:"))); - m_textureCombo = new QComboBox; - connect(m_textureCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), - this, &RenderOptionsDialog::textureChanged); - layout->addWidget(m_textureCombo); - ++row; - - layout->addWidget(new QLabel(tr("Shader:"))); - m_shaderCombo = new QComboBox; - connect(m_shaderCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), - this, &RenderOptionsDialog::shaderChanged); - layout->addWidget(m_shaderCombo); - ++row; - - layout->setRowStretch(row, 1); -} - -int RenderOptionsDialog::addTexture(const QString &name) -{ - m_textureCombo->addItem(name); - return m_textureCombo->count() - 1; -} - -int RenderOptionsDialog::addShader(const QString &name) -{ - m_shaderCombo->addItem(name); - return m_shaderCombo->count() - 1; -} - -void RenderOptionsDialog::emitParameterChanged() -{ - for (ParameterEdit *edit : qAsConst(m_parameterEdits)) - edit->emitChange(); -} - -void RenderOptionsDialog::setColorParameter(QRgb color, int id) -{ - emit colorParameterChanged(m_parameterNames[id], color); -} - -void RenderOptionsDialog::setFloatParameter(float value, int id) -{ - emit floatParameterChanged(m_parameterNames[id], value); -} - -void RenderOptionsDialog::mouseDoubleClickEvent(QMouseEvent *event) -{ - if (event->button() == Qt::LeftButton) - emit doubleClicked(); -} - -//============================================================================// -// ItemDialog // -//============================================================================// - -ItemDialog::ItemDialog() - : QDialog(nullptr, Qt::CustomizeWindowHint | Qt::WindowTitleHint) -{ - setWindowTitle(tr("Items (double click to flip)")); - setWindowOpacity(0.75); - resize(160, 100); - - QVBoxLayout *layout = new QVBoxLayout; - setLayout(layout); - QPushButton *button; - - button = new QPushButton(tr("Add Qt box")); - layout->addWidget(button); - connect(button, &QAbstractButton::clicked, this, &ItemDialog::triggerNewQtBox); - - button = new QPushButton(tr("Add circle")); - layout->addWidget(button); - connect(button, &QAbstractButton::clicked, this, &ItemDialog::triggerNewCircleItem); - - button = new QPushButton(tr("Add square")); - layout->addWidget(button); - connect(button, &QAbstractButton::clicked, this, &ItemDialog::triggerNewSquareItem); - - layout->addStretch(1); -} - -void ItemDialog::triggerNewQtBox() -{ - emit newItemTriggered(QtBoxItem); -} - -void ItemDialog::triggerNewCircleItem() -{ - emit newItemTriggered(CircleItem); -} - -void ItemDialog::triggerNewSquareItem() -{ - emit newItemTriggered(SquareItem); -} - -void ItemDialog::mouseDoubleClickEvent(QMouseEvent *event) -{ - if (event->button() == Qt::LeftButton) - emit doubleClicked(); -} - -//============================================================================// -// Scene // -//============================================================================// - -const static char environmentShaderText[] = - "uniform samplerCube env;" - "void main() {" - "gl_FragColor = textureCube(env, gl_TexCoord[1].xyz);" - "}"; - -Scene::Scene(int width, int height, int maxTextureSize) - : m_distExp(600) - , m_frame(0) - , m_maxTextureSize(maxTextureSize) - , m_currentShader(0) - , m_currentTexture(0) - , m_dynamicCubemap(false) - , m_updateAllCubemaps(true) - , m_box(nullptr) - , m_vertexShader(nullptr) - , m_environmentShader(nullptr) - , m_environmentProgram(nullptr) -{ - setSceneRect(0, 0, width, height); - - m_trackBalls[0] = TrackBall(0.05f, QVector3D(0, 1, 0), TrackBall::Sphere); - m_trackBalls[1] = TrackBall(0.005f, QVector3D(0, 0, 1), TrackBall::Sphere); - m_trackBalls[2] = TrackBall(0.0f, QVector3D(0, 1, 0), TrackBall::Plane); - - m_renderOptions = new RenderOptionsDialog; - m_renderOptions->move(20, 120); - m_renderOptions->resize(m_renderOptions->sizeHint()); - - connect(m_renderOptions, &RenderOptionsDialog::dynamicCubemapToggled, this, &Scene::toggleDynamicCubemap); - connect(m_renderOptions, &RenderOptionsDialog::colorParameterChanged, this, &Scene::setColorParameter); - connect(m_renderOptions, &RenderOptionsDialog::floatParameterChanged, this, &Scene::setFloatParameter); - connect(m_renderOptions, &RenderOptionsDialog::textureChanged, this, &Scene::setTexture); - connect(m_renderOptions, &RenderOptionsDialog::shaderChanged, this, &Scene::setShader); - - m_itemDialog = new ItemDialog; - connect(m_itemDialog, &ItemDialog::newItemTriggered, this, &Scene::newItem); - - TwoSidedGraphicsWidget *twoSided = new TwoSidedGraphicsWidget(this); - twoSided->setWidget(0, m_renderOptions); - twoSided->setWidget(1, m_itemDialog); - - connect(m_renderOptions, &RenderOptionsDialog::doubleClicked, twoSided, &TwoSidedGraphicsWidget::flip); - connect(m_itemDialog, &ItemDialog::doubleClicked, twoSided, &TwoSidedGraphicsWidget::flip); - - addItem(new QtBox(64, width - 64, height - 64)); - addItem(new QtBox(64, width - 64, 64)); - addItem(new QtBox(64, 64, height - 64)); - addItem(new QtBox(64, 64, 64)); - - initGL(); - - m_timer = new QTimer(this); - m_timer->setInterval(20); - connect(m_timer, &QTimer::timeout, this, [this](){ update(); }); - m_timer->start(); -} - -Scene::~Scene() -{ - delete m_box; - qDeleteAll(m_textures); - delete m_mainCubemap; - qDeleteAll(m_programs); - delete m_vertexShader; - qDeleteAll(m_fragmentShaders); - qDeleteAll(m_cubemaps); - delete m_environmentShader; - delete m_environmentProgram; -} - -void Scene::initGL() -{ - m_box = new GLRoundedBox(0.25f, 1.0f, 10); - - m_vertexShader = new QGLShader(QGLShader::Vertex); - m_vertexShader->compileSourceFile(QLatin1String(":/res/boxes/basic.vsh")); - - QStringList list; - list << ":/res/boxes/cubemap_posx.jpg" << ":/res/boxes/cubemap_negx.jpg" << ":/res/boxes/cubemap_posy.jpg" - << ":/res/boxes/cubemap_negy.jpg" << ":/res/boxes/cubemap_posz.jpg" << ":/res/boxes/cubemap_negz.jpg"; - m_environment = new GLTextureCube(list, qMin(1024, m_maxTextureSize)); - m_environmentShader = new QGLShader(QGLShader::Fragment); - m_environmentShader->compileSourceCode(environmentShaderText); - m_environmentProgram = new QGLShaderProgram; - m_environmentProgram->addShader(m_vertexShader); - m_environmentProgram->addShader(m_environmentShader); - m_environmentProgram->link(); - - const int NOISE_SIZE = 128; // for a different size, B and BM in fbm.c must also be changed - m_noise = new GLTexture3D(NOISE_SIZE, NOISE_SIZE, NOISE_SIZE); - QVector<QRgb> data(NOISE_SIZE * NOISE_SIZE * NOISE_SIZE, QRgb(0)); - QRgb *p = data.data(); - float pos[3]; - for (int k = 0; k < NOISE_SIZE; ++k) { - pos[2] = k * (0x20 / (float)NOISE_SIZE); - for (int j = 0; j < NOISE_SIZE; ++j) { - for (int i = 0; i < NOISE_SIZE; ++i) { - for (int byte = 0; byte < 4; ++byte) { - pos[0] = (i + (byte & 1) * 16) * (0x20 / (float)NOISE_SIZE); - pos[1] = (j + (byte & 2) * 8) * (0x20 / (float)NOISE_SIZE); - *p |= (int)(128.0f * (noise3(pos) + 1.0f)) << (byte * 8); - } - ++p; - } - } - } - m_noise->load(NOISE_SIZE, NOISE_SIZE, NOISE_SIZE, data.data()); - - m_mainCubemap = new GLRenderTargetCube(512); - - QList<QFileInfo> files; - - // Load all .png files as textures - m_currentTexture = 0; - files = QDir(":/res/boxes/").entryInfoList({ QStringLiteral("*.png") }, QDir::Files | QDir::Readable); - - for (const QFileInfo &file : qAsConst(files)) { - GLTexture *texture = new GLTexture2D(file.absoluteFilePath(), qMin(256, m_maxTextureSize), qMin(256, m_maxTextureSize)); - if (texture->failed()) { - delete texture; - continue; - } - m_textures << texture; - m_renderOptions->addTexture(file.baseName()); - } - - if (m_textures.size() == 0) - m_textures << new GLTexture2D(qMin(64, m_maxTextureSize), qMin(64, m_maxTextureSize)); - - // Load all .fsh files as fragment shaders - m_currentShader = 0; - files = QDir(":/res/boxes/").entryInfoList({ QStringLiteral("*.fsh") }, QDir::Files | QDir::Readable); - for (const QFileInfo &file : qAsConst(files)) { - QGLShaderProgram *program = new QGLShaderProgram; - QGLShader* shader = new QGLShader(QGLShader::Fragment); - shader->compileSourceFile(file.absoluteFilePath()); - // The program does not take ownership over the shaders, so store them in a vector so they can be deleted afterwards. - program->addShader(m_vertexShader); - program->addShader(shader); - if (!program->link()) { - qWarning("Failed to compile and link shader program"); - qWarning("Vertex shader log:"); - qWarning() << m_vertexShader->log(); - qWarning() << "Fragment shader log ( file =" << file.absoluteFilePath() << "):"; - qWarning() << shader->log(); - qWarning("Shader program log:"); - qWarning() << program->log(); - - delete shader; - delete program; - continue; - } - - m_fragmentShaders << shader; - m_programs << program; - m_renderOptions->addShader(file.baseName()); - - program->bind(); - m_cubemaps << ((program->uniformLocation("env") != -1) ? new GLRenderTargetCube(qMin(256, m_maxTextureSize)) : nullptr); - program->release(); - } - - if (m_programs.size() == 0) - m_programs << new QGLShaderProgram; - - m_renderOptions->emitParameterChanged(); -} - -static void loadMatrix(const QMatrix4x4 &m) -{ - // static to prevent glLoadMatrixf to fail on certain drivers - static GLfloat mat[16]; - const float *data = m.constData(); - for (int index = 0; index < 16; ++index) - mat[index] = data[index]; - glLoadMatrixf(mat); -} - -// If one of the boxes should not be rendered, set excludeBox to its index. -// If the main box should not be rendered, set excludeBox to -1. -void Scene::renderBoxes(const QMatrix4x4 &view, int excludeBox) -{ - QMatrix4x4 invView = view.inverted(); - - // If multi-texturing is supported, use three saplers. - if (glActiveTexture) { - glActiveTexture(GL_TEXTURE0); - m_textures[m_currentTexture]->bind(); - glActiveTexture(GL_TEXTURE2); - m_noise->bind(); - glActiveTexture(GL_TEXTURE1); - } else { - m_textures[m_currentTexture]->bind(); - } - - glDisable(GL_LIGHTING); - glDisable(GL_CULL_FACE); - - QMatrix4x4 viewRotation(view); - viewRotation(3, 0) = viewRotation(3, 1) = viewRotation(3, 2) = 0.0f; - viewRotation(0, 3) = viewRotation(1, 3) = viewRotation(2, 3) = 0.0f; - viewRotation(3, 3) = 1.0f; - loadMatrix(viewRotation); - glScalef(20.0f, 20.0f, 20.0f); - - // Don't render the environment if the environment texture can't be set for the correct sampler. - if (glActiveTexture) { - m_environment->bind(); - m_environmentProgram->bind(); - m_environmentProgram->setUniformValue("tex", GLint(0)); - m_environmentProgram->setUniformValue("env", GLint(1)); - m_environmentProgram->setUniformValue("noise", GLint(2)); - m_box->draw(); - m_environmentProgram->release(); - m_environment->unbind(); - } - - loadMatrix(view); - - glEnable(GL_CULL_FACE); - glEnable(GL_LIGHTING); - - for (int i = 0; i < m_programs.size(); ++i) { - if (i == excludeBox) - continue; - - glPushMatrix(); - QMatrix4x4 m; - m.rotate(m_trackBalls[1].rotation()); - glMultMatrixf(m.constData()); - - glRotatef(360.0f * i / m_programs.size(), 0.0f, 0.0f, 1.0f); - glTranslatef(2.0f, 0.0f, 0.0f); - glScalef(0.3f, 0.6f, 0.6f); - - if (glActiveTexture) { - if (m_dynamicCubemap && m_cubemaps[i]) - m_cubemaps[i]->bind(); - else - m_environment->bind(); - } - m_programs[i]->bind(); - m_programs[i]->setUniformValue("tex", GLint(0)); - m_programs[i]->setUniformValue("env", GLint(1)); - m_programs[i]->setUniformValue("noise", GLint(2)); - m_programs[i]->setUniformValue("view", view); - m_programs[i]->setUniformValue("invView", invView); - m_box->draw(); - m_programs[i]->release(); - - if (glActiveTexture) { - if (m_dynamicCubemap && m_cubemaps[i]) - m_cubemaps[i]->unbind(); - else - m_environment->unbind(); - } - glPopMatrix(); - } - - if (-1 != excludeBox) { - QMatrix4x4 m; - m.rotate(m_trackBalls[0].rotation()); - glMultMatrixf(m.constData()); - - if (glActiveTexture) { - if (m_dynamicCubemap) - m_mainCubemap->bind(); - else - m_environment->bind(); - } - - m_programs[m_currentShader]->bind(); - m_programs[m_currentShader]->setUniformValue("tex", GLint(0)); - m_programs[m_currentShader]->setUniformValue("env", GLint(1)); - m_programs[m_currentShader]->setUniformValue("noise", GLint(2)); - m_programs[m_currentShader]->setUniformValue("view", view); - m_programs[m_currentShader]->setUniformValue("invView", invView); - m_box->draw(); - m_programs[m_currentShader]->release(); - - if (glActiveTexture) { - if (m_dynamicCubemap) - m_mainCubemap->unbind(); - else - m_environment->unbind(); - } - } - - if (glActiveTexture) { - glActiveTexture(GL_TEXTURE2); - m_noise->unbind(); - glActiveTexture(GL_TEXTURE0); - } - m_textures[m_currentTexture]->unbind(); -} - -void Scene::setStates() -{ - //glClearColor(0.25f, 0.25f, 0.5f, 1.0f); - - glEnable(GL_DEPTH_TEST); - glEnable(GL_CULL_FACE); - glEnable(GL_LIGHTING); - //glEnable(GL_COLOR_MATERIAL); - glEnable(GL_TEXTURE_2D); - glEnable(GL_NORMALIZE); - - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - glLoadIdentity(); - - glMatrixMode(GL_MODELVIEW); - glPushMatrix(); - glLoadIdentity(); - - setLights(); - - float materialSpecular[] = {0.5f, 0.5f, 0.5f, 1.0f}; - glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, materialSpecular); - glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 32.0f); -} - -void Scene::setLights() -{ - glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); - //float lightColour[] = {1.0f, 1.0f, 1.0f, 1.0f}; - float lightDir[] = {0.0f, 0.0f, 1.0f, 0.0f}; - //glLightfv(GL_LIGHT0, GL_DIFFUSE, lightColour); - //glLightfv(GL_LIGHT0, GL_SPECULAR, lightColour); - glLightfv(GL_LIGHT0, GL_POSITION, lightDir); - glLightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER, 1.0f); - glEnable(GL_LIGHT0); -} - -void Scene::defaultStates() -{ - //glClearColor(0.0f, 0.0f, 0.0f, 0.0f); - - glDisable(GL_DEPTH_TEST); - glDisable(GL_CULL_FACE); - glDisable(GL_LIGHTING); - //glDisable(GL_COLOR_MATERIAL); - glDisable(GL_TEXTURE_2D); - glDisable(GL_LIGHT0); - glDisable(GL_NORMALIZE); - - glMatrixMode(GL_MODELVIEW); - glPopMatrix(); - - glMatrixMode(GL_PROJECTION); - glPopMatrix(); - - glLightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER, 0.0f); - float defaultMaterialSpecular[] = {0.0f, 0.0f, 0.0f, 1.0f}; - glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, defaultMaterialSpecular); - glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 0.0f); -} - -void Scene::renderCubemaps() -{ - // To speed things up, only update the cubemaps for the small cubes every N frames. - const int N = (m_updateAllCubemaps ? 1 : 3); - - QMatrix4x4 mat; - GLRenderTargetCube::getProjectionMatrix(mat, 0.1f, 100.0f); - - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - loadMatrix(mat); - - glMatrixMode(GL_MODELVIEW); - glPushMatrix(); - - QVector3D center; - - const float eachAngle = 2 * M_PI / m_cubemaps.size(); - for (int i = m_frame % N; i < m_cubemaps.size(); i += N) { - if (0 == m_cubemaps[i]) - continue; - - float angle = i * eachAngle; - - center = m_trackBalls[1].rotation().rotatedVector(QVector3D(std::cos(angle), std::sin(angle), 0.0f)); - - for (int face = 0; face < 6; ++face) { - m_cubemaps[i]->begin(face); - - GLRenderTargetCube::getViewMatrix(mat, face); - QVector4D v = QVector4D(-center.x(), -center.y(), -center.z(), 1.0); - mat.setColumn(3, mat * v); - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - renderBoxes(mat, i); - - m_cubemaps[i]->end(); - } - } - - for (int face = 0; face < 6; ++face) { - m_mainCubemap->begin(face); - GLRenderTargetCube::getViewMatrix(mat, face); - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - renderBoxes(mat, -1); - - m_mainCubemap->end(); - } - - glPopMatrix(); - - glMatrixMode(GL_PROJECTION); - glPopMatrix(); - - m_updateAllCubemaps = false; -} - -void Scene::drawBackground(QPainter *painter, const QRectF &) -{ - float width = float(painter->device()->width()); - float height = float(painter->device()->height()); - - painter->beginNativePainting(); - setStates(); - - if (m_dynamicCubemap) - renderCubemaps(); - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glMatrixMode(GL_PROJECTION); - qgluPerspective(60.0, width / height, 0.01, 15.0); - - glMatrixMode(GL_MODELVIEW); - - QMatrix4x4 view; - view.rotate(m_trackBalls[2].rotation()); - view(2, 3) -= 2.0f * std::exp(m_distExp / 1200.0f); - renderBoxes(view); - - defaultStates(); - ++m_frame; - - painter->endNativePainting(); -} - -QPointF Scene::pixelPosToViewPos(const QPointF& p) -{ - return QPointF(2.0 * float(p.x()) / width() - 1.0, - 1.0 - 2.0 * float(p.y()) / height()); -} - -void Scene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) -{ - QGraphicsScene::mouseMoveEvent(event); - if (event->isAccepted()) - return; - - if (event->buttons() & Qt::LeftButton) { - m_trackBalls[0].move(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - event->accept(); - } else { - m_trackBalls[0].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - } - - if (event->buttons() & Qt::RightButton) { - m_trackBalls[1].move(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - event->accept(); - } else { - m_trackBalls[1].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - } - - if (event->buttons() & Qt::MidButton) { - m_trackBalls[2].move(pixelPosToViewPos(event->scenePos()), QQuaternion()); - event->accept(); - } else { - m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), QQuaternion()); - } -} - -void Scene::mousePressEvent(QGraphicsSceneMouseEvent *event) -{ - QGraphicsScene::mousePressEvent(event); - if (event->isAccepted()) - return; - - if (event->buttons() & Qt::LeftButton) { - m_trackBalls[0].push(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - event->accept(); - } - - if (event->buttons() & Qt::RightButton) { - m_trackBalls[1].push(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - event->accept(); - } - - if (event->buttons() & Qt::MidButton) { - m_trackBalls[2].push(pixelPosToViewPos(event->scenePos()), QQuaternion()); - event->accept(); - } -} - -void Scene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) -{ - QGraphicsScene::mouseReleaseEvent(event); - if (event->isAccepted()) - return; - - if (event->button() == Qt::LeftButton) { - m_trackBalls[0].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - event->accept(); - } - - if (event->button() == Qt::RightButton) { - m_trackBalls[1].release(pixelPosToViewPos(event->scenePos()), m_trackBalls[2].rotation().conjugated()); - event->accept(); - } - - if (event->button() == Qt::MidButton) { - m_trackBalls[2].release(pixelPosToViewPos(event->scenePos()), QQuaternion()); - event->accept(); - } -} - -void Scene::wheelEvent(QGraphicsSceneWheelEvent * event) -{ - QGraphicsScene::wheelEvent(event); - if (!event->isAccepted()) { - m_distExp += event->delta(); - if (m_distExp < -8 * 120) - m_distExp = -8 * 120; - if (m_distExp > 10 * 120) - m_distExp = 10 * 120; - event->accept(); - } -} - -void Scene::setShader(int index) -{ - if (index >= 0 && index < m_fragmentShaders.size()) - m_currentShader = index; -} - -void Scene::setTexture(int index) -{ - if (index >= 0 && index < m_textures.size()) - m_currentTexture = index; -} - -void Scene::toggleDynamicCubemap(int state) -{ - if ((m_dynamicCubemap = (state == Qt::Checked))) - m_updateAllCubemaps = true; -} - -void Scene::setColorParameter(const QString &name, QRgb color) -{ - // set the color in all programs - for (QGLShaderProgram *program : qAsConst(m_programs)) { - program->bind(); - program->setUniformValue(program->uniformLocation(name), QColor(color)); - program->release(); - } -} - -void Scene::setFloatParameter(const QString &name, float value) -{ - // set the color in all programs - for (QGLShaderProgram *program : qAsConst(m_programs)) { - program->bind(); - program->setUniformValue(program->uniformLocation(name), value); - program->release(); - } -} - -void Scene::newItem(ItemDialog::ItemType type) -{ - QSize size = sceneRect().size().toSize(); - switch (type) { - case ItemDialog::QtBoxItem: - addItem(new QtBox(64, QRandomGenerator::global()->bounded(size.width() - 64) + 32, - QRandomGenerator::global()->bounded(size.height() - 64) + 32)); - break; - case ItemDialog::CircleItem: - addItem(new CircleItem(64, QRandomGenerator::global()->bounded(size.width() - 64) + 32, - QRandomGenerator::global()->bounded(size.height() - 64) + 32)); - break; - case ItemDialog::SquareItem: - addItem(new SquareItem(64, QRandomGenerator::global()->bounded(size.width() - 64) + 32, - QRandomGenerator::global()->bounded(size.height() - 64) + 32)); - break; - default: - break; - } -} |