kindred/create
1
1
Fork 0
Code Issues 37 Pull Requests Actions Packages Projects 9 Releases 2 Wiki Activity

+ add GL test stuff into Sandbox module

Browse Source
This commit is contained in:
wmayer
2014-08-21 18:15:43 +02:00
parent 811fb3be24
commit c1c25f1a5c
7 changed files with 1250 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

395
src/Mod/Sandbox/Gui/GLGraphicsView.cpp Normal file
View File

@@ -0,0 +1,395 @@
/***************************************************************************
* Copyright (c) 2013 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
#endif
#include <QApplication>
#include <QCheckBox>
#include <QColorDialog>
#include <QFileDialog>
#include <QLabel>
#include <QPushButton>
#include <QResizeEvent>
#include <QTimer>
#include <QVBoxLayout>
#include <QGLWidget>
#include <QGraphicsView>
#include <QPaintEngine>
#include <QGraphicsItem>
#include <QGraphicsSceneMouseEvent>
#include "GLGraphicsView.h"
#include <Gui/Document.h>
#include <Gui/ViewProvider.h>
using namespace Gui;
// http://doc.qt.digia.com/qq/qq26-openglcanvas.html
class GraphicsView : public QGraphicsView
{
public:
GraphicsView()
{
}
protected:
void resizeEvent(QResizeEvent *event) {
if (scene())
scene()->setSceneRect(
QRect(QPoint(0, 0), event->size()));
QGraphicsView::resizeEvent(event);
}
};
#ifndef GL_MULTISAMPLE
#define GL_MULTISAMPLE 0x809D
#endif
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoOrthographicCamera.h>
#include <Inventor/nodes/SoDirectionalLight.h>
QDialog *GraphicsScene::createDialog(const QString &windowTitle) const
{
QDialog *dialog = new QDialog(0, Qt::CustomizeWindowHint | Qt::WindowTitleHint);
dialog->setWindowOpacity(0.8);
dialog->setWindowTitle(windowTitle);
dialog->setLayout(new QVBoxLayout);
return dialog;
}
GraphicsScene::GraphicsScene()
: m_wireframeEnabled(false)
, m_normalsEnabled(false)
, m_modelColor(153, 255, 0)
, m_backgroundColor(0, 170, 255)
, m_lastTime(0)
, m_distance(1.4f)
{
rootNode = new SoSeparator();
rootNode->ref();
sceneCamera = new SoOrthographicCamera();
rootNode->addChild(sceneCamera);
rootNode->addChild(new SoDirectionalLight());
sceneNode = new SoSeparator();
sceneNode->ref();
rootNode->addChild(sceneNode);
this->addEllipse(20,20, 120, 60);
QWidget *controls = createDialog(tr("Controls"));
m_modelButton = new QPushButton(tr("Load model"));
//connect(m_modelButton, SIGNAL(clicked()), this, SLOT(loadModel()));
controls->layout()->addWidget(m_modelButton);
QCheckBox *wireframe = new QCheckBox(tr("Render as wireframe"));
//connect(wireframe, SIGNAL(toggled(bool)), this, SLOT(enableWireframe(bool)));
controls->layout()->addWidget(wireframe);
QCheckBox *normals = new QCheckBox(tr("Display normals vectors"));
//connect(normals, SIGNAL(toggled(bool)), this, SLOT(enableNormals(bool)));
controls->layout()->addWidget(normals);
QPushButton *colorButton = new QPushButton(tr("Choose model color"));
//connect(colorButton, SIGNAL(clicked()), this, SLOT(setModelColor()));
controls->layout()->addWidget(colorButton);
QPushButton *backgroundButton = new QPushButton(tr("Choose background color"));
//connect(backgroundButton, SIGNAL(clicked()), this, SLOT(setBackgroundColor()));
controls->layout()->addWidget(backgroundButton);
QWidget *statistics = createDialog(tr("Model info"));
statistics->layout()->setMargin(20);
for (int i = 0; i < 4; ++i) {
m_labels[i] = new QLabel;
statistics->layout()->addWidget(m_labels[i]);
}
QWidget *instructions = createDialog(tr("Instructions"));
instructions->layout()->addWidget(new QLabel(tr("Use mouse wheel to zoom model, and click and drag to rotate model")));
instructions->layout()->addWidget(new QLabel(tr("Move the sun around to change the light position")));
addWidget(instructions);
addWidget(controls);
addWidget(statistics);
QPointF pos(10, 10);
Q_FOREACH (QGraphicsItem *item, items()) {
item->setFlag(QGraphicsItem::ItemIsMovable);
item->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
const QRectF rect = item->boundingRect();
item->setPos(pos.x() - rect.x(), pos.y() - rect.y());
pos += QPointF(0, 10 + rect.height());
}
//QRadialGradient gradient(40, 40, 40, 40, 40);
//gradient.setColorAt(0.2, Qt::yellow);
//gradient.setColorAt(1, Qt::transparent);
//m_lightItem = new QGraphicsRectItem(0, 0, 80, 80);
//m_lightItem->setPen(Qt::NoPen);
//m_lightItem->setBrush(gradient);
//m_lightItem->setFlag(QGraphicsItem::ItemIsMovable);
//m_lightItem->setPos(800, 200);
//addItem(m_lightItem);
loadModel(QLatin1String("qt.obj"));
m_time.start();
}
GraphicsScene::~GraphicsScene()
{
sceneNode->unref();
rootNode->unref();
}
void GraphicsScene::viewAll()
{
sceneCamera->viewAll(rootNode, SbViewportRegion(width(),height()));
}
SoSeparator* GraphicsScene::getSceneGraph() const
{
return sceneNode;
}
#include <Inventor/SbViewportRegion.h>
#include <Inventor/actions/SoGLRenderAction.h>
void GraphicsScene::drawBackground(QPainter *painter, const QRectF &)
{
if (painter->paintEngine()->type() != QPaintEngine::OpenGL) {
qWarning("GraphicsScene: drawBackground needs a QGLWidget to be set as viewport on the graphics view");
return;
}
glViewport(0, 0, width(), height());
/**/
glClearColor(m_backgroundColor.redF(), m_backgroundColor.greenF(), m_backgroundColor.blueF(), 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//glDepthRange(0.1,1.0); //
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
//gluPerspective(70, width() / height(), 0.01, 1000);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
//const float pos[] = { m_lightItem->x() - width() / 2, height() / 2 - m_lightItem->y(), 512, 0 };
//glLightfv(GL_LIGHT0, GL_POSITION, pos);
glColor4f(m_modelColor.redF(), m_modelColor.greenF(), m_modelColor.blueF(), 1.0f);
const int delta = m_time.elapsed() - m_lastTime;
m_lastTime += delta;
//glTranslatef(0, 0, -m_distance);
//glRotatef(m_rotation.x, 1, 0, 0);
//glRotatef(m_rotation.y, 0, 1, 0);
//glRotatef(m_rotation.z, 0, 0, 1);
//glEnable(GL_MULTISAMPLE);
//m_model->render(m_wireframeEnabled, m_normalsEnabled);
//glDisable(GL_MULTISAMPLE);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
/**/
/**/
glPushAttrib(GL_ALL_ATTRIB_BITS);
glViewport(0, 0, width(), height());
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glDepthRange(0.1,1.0);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
SoGLRenderAction gl(SbViewportRegion(width(),height()));
gl.apply(rootNode);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
glViewport(0, 0, width(), height());
glColor3f(1,1,1);
glLineWidth(4);
glBegin(GL_LINES);
glVertex3i(0, 0, 0);
glVertex3i(400, 400, 0);
glEnd();
/**/
painter->save();
painter->fillRect(40,40,40,60,Qt::lightGray);
painter->drawText(50,50, QString::fromAscii("Done with QPainter"));
painter->restore();
QTimer::singleShot(20, this, SLOT(update()));
}
void GraphicsScene::loadModel()
{
loadModel(QFileDialog::getOpenFileName(0, tr("Choose model"), QString(), QLatin1String("*.obj")));
}
void GraphicsScene::loadModel(const QString &filePath)
{
if (filePath.isEmpty())
return;
m_modelButton->setEnabled(false);
QApplication::setOverrideCursor(Qt::BusyCursor);
modelLoaded();
}
void GraphicsScene::modelLoaded()
{
m_modelButton->setEnabled(true);
QApplication::restoreOverrideCursor();
}
void GraphicsScene::enableWireframe(bool enabled)
{
m_wireframeEnabled = enabled;
update();
}
void GraphicsScene::enableNormals(bool enabled)
{
m_normalsEnabled = enabled;
update();
}
void GraphicsScene::setModelColor()
{
const QColor color = QColorDialog::getColor(m_modelColor);
if (color.isValid()) {
m_modelColor = color;
update();
}
}
void GraphicsScene::setBackgroundColor()
{
const QColor color = QColorDialog::getColor(m_backgroundColor);
if (color.isValid()) {
m_backgroundColor = color;
update();
}
}
void GraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
QGraphicsScene::mouseMoveEvent(event);
if (event->isAccepted())
return;
if (event->buttons() & Qt::LeftButton) {
const QPointF delta = event->scenePos() - event->lastScenePos();
//const Point3d angularImpulse = Point3d(delta.y(), delta.x(), 0) * 0.1;
//m_rotation += angularImpulse;
//m_accumulatedMomentum += angularImpulse;
event->accept();
update();
}
}
void GraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
QGraphicsScene::mousePressEvent(event);
if (event->isAccepted())
return;
m_mouseEventTime = m_time.elapsed();
//m_angularMomentum = m_accumulatedMomentum = Point3d();
event->accept();
}
void GraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
QGraphicsScene::mouseReleaseEvent(event);
if (event->isAccepted())
return;
const int delta = m_time.elapsed() - m_mouseEventTime;
//m_angularMomentum = m_accumulatedMomentum * (1000.0 / qMax(1, delta));
event->accept();
update();
}
void GraphicsScene::wheelEvent(QGraphicsSceneWheelEvent *event)
{
QGraphicsScene::wheelEvent(event);
if (event->isAccepted())
return;
//m_distance *= qPow(1.2, -event->delta() / 120);
event->accept();
update();
}
GraphicsView3D::GraphicsView3D(Gui::Document* doc, QWidget* parent)
: Gui::MDIView(doc, parent), m_Scene(new GraphicsScene()), m_view(new GraphicsView)
{
m_view->setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
m_view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
m_view->setScene(m_Scene);
std::vector<ViewProvider*> v = doc->getViewProvidersOfType(ViewProvider::getClassTypeId());
for (std::vector<ViewProvider*>::iterator it = v.begin(); it != v.end(); ++it)
m_Scene->getSceneGraph()->addChild((*it)->getRoot());
setCentralWidget(m_view);
m_Scene->viewAll();
}
GraphicsView3D::~GraphicsView3D()
{
}
#include "moc_GLGraphicsView.cpp"