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b21cb8abb95d6ff37effded650672ffb1f5f579b
create/src/Mod/Sandbox/Gui/Overlay.cpp
Mateusz Skowroński 23cdde88e0 Fix some GCC 7 warnings: 
* dynamic exception specifications are deprecated [-Wdeprecated]
* this statement may fall through [-Wimplicit-fallthrough=]
2017-12-05 17:22:00 +01:00

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/***************************************************************************
* Copyright (c) 2013 Werner Mayer <wmayer@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_
# include <QImage>
# include <QMouseEvent>
# include <QPainter>
# include <Inventor/nodes/SoOrthographicCamera.h>
# include <Inventor/nodes/SoImage.h>
#endif
#include <QtOpenGL.h>
#include <Gui/Application.h>
#include <Gui/Document.h>
#include <Gui/Selection.h>
#include <Gui/GLPainter.h>
#include <Gui/View3DInventor.h>
#include <Gui/View3DInventorViewer.h>
#include "Overlay.h"
using namespace SandboxGui;
class MyPaintable : public Gui::GLGraphicsItem
{
QtGLFramebufferObject* fbo;
Gui::View3DInventorViewer* view;
QImage img;
public:
~MyPaintable()
{
}
MyPaintable(Gui::View3DInventorViewer* v) :view(v), img(v->getGLWidget()->size(), QImage::Format_ARGB32)
{
img.fill(qRgba(255, 255, 255, 0));
{
QPainter p(&img);
p.setPen(Qt::white);
p.drawText(200,200,QString::fromLatin1("Render to QImage"));
}
#if !defined(HAVE_QT5_OPENGL)
img = QtGLWidget::convertToGLFormat(img);
#endif
fbo = new QtGLFramebufferObject(v->getGLWidget()->size());
fbo->bind();
//glClear(GL_COLOR_BUFFER_BIT);
fbo->release();
{
#if !defined(HAVE_QT5_OPENGL)
QPainter p(fbo);
p.setPen(Qt::white);
p.drawText(200,200,QString::fromLatin1("Render to QtGLFramebufferObject"));
p.end();
#endif
//img = fbo->toImage();
//img = QtGLWidget::convertToGLFormat(img);
}
//fbo->bind();
//glEnable(GL_DEPTH_TEST);
//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//glDepthRange(0.1,1.0);
//glEnable(GL_LINE_SMOOTH);
//SoGLRenderAction a(SbViewportRegion(128,128));
//a.apply(v->getSceneManager()->getSceneGraph());
//fbo->release();
//img = fbo->toImage();
//img = QtGLWidget::convertToGLFormat(img);
view->getSoRenderManager()->scheduleRedraw();
}
#ifndef GL_MULTISAMPLE
#define GL_MULTISAMPLE 0x809D
#endif
void paintGL()
{
const SbViewportRegion vp = view->getSoRenderManager()->getViewportRegion();
SbVec2s size = vp.getViewportSizePixels();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, size[0], 0, size[1], -1, 1);
glPushAttrib(GL_ALL_ATTRIB_BITS);
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4d(0.0,0.0,1.0,0.0f);
glRasterPos2d(0,0);
//http://wiki.delphigl.com/index.php/Multisampling
//glDrawPixels(img.width(),img.height(),GL_RGBA,GL_UNSIGNED_BYTE,img.bits());
/*
fbo->bind();
GLuint* buf = new GLuint[size[0]*size[1]];
glReadPixels(0, 0, size[0], size[1], GL_RGBA, GL_UNSIGNED_BYTE, buf);
fbo->release();
glDrawPixels(size[0],size[1],GL_RGBA,GL_UNSIGNED_BYTE,buf);
delete [] buf;
*/
/*
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, fbo->texture());
glBegin(GL_QUADS);
glTexCoord2f(0.0,0.0);
glVertex2f(-1.0,-1.0);
glTexCoord2f(0.0,1.0);
glVertex2f(-1.0,1.0);
glTexCoord2f(1.0,1.0);
glVertex2f(1.0,1.0);
glTexCoord2f(1.0,0.0);
glVertex2f(1.0,-1.0);
glEnd();
glDisable(GL_TEXTURE_2D);
*/
glPopAttrib();
glPopMatrix();
}
};
class Teapots : public Gui::GLGraphicsItem
{
QtGLFramebufferObject *fbObject;
GLuint glTeapotObject;
QPoint rubberBandCorner1;
QPoint rubberBandCorner2;
bool rubberBandIsShown;
Gui::View3DInventorViewer* view;
public:
Teapots(Gui::View3DInventorViewer* v) :view(v)
{
const SbViewportRegion vp = view->getSoRenderManager()->getViewportRegion();
SbVec2s size = vp.getViewportSizePixels();
rubberBandIsShown = false;
// makeCurrent();
fbObject = new QtGLFramebufferObject(size[0],size[1],
QtGLFramebufferObject::Depth);
//initializeGL();
resizeGL(size[0],size[1]);
rubberBandIsShown = true;
rubberBandCorner1.setX(200);
rubberBandCorner1.setY(200);
rubberBandCorner2.setX(800);
rubberBandCorner2.setY(600);
view->getSoRenderManager()->scheduleRedraw();
}
~Teapots()
{
delete fbObject;
glDeleteLists(glTeapotObject, 1);
}
void initializeGL()
{
static const GLfloat ambient[] = { 0.0, 0.0, 0.0, 1.0 };
static const GLfloat diffuse[] = { 1.0, 1.0, 1.0, 1.0 };
static const GLfloat position[] = { 0.0, 3.0, 3.0, 0.0 };
static const GLfloat lmodelAmbient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
static const GLfloat localView[] = { 0.0 };
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
glLightfv(GL_LIGHT0, GL_POSITION, position);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodelAmbient);
glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER, localView);
glFrontFace(GL_CW);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_AUTO_NORMAL);
glEnable(GL_NORMALIZE);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
}
void resizeGL(int width, int height)
{
#if 0
fbObject->bind();
glDisable(GL_TEXTURE_2D);
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (width <= height) {
glOrtho(0.0, 20.0, 0.0, 20.0 * GLfloat(height) / GLfloat(width),
-10.0, 10.0);
} else {
glOrtho(0.0, 20.0 * GLfloat(width) / GLfloat(height), 0.0, 20.0,
-10.0, 10.0);
}
glMatrixMode(GL_MODELVIEW);
drawTeapots();
fbObject->release();
#else
(void)width;
(void)height;
fbObject->bind();
glDisable(GL_TEXTURE_2D);
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LINE_SMOOTH);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glDepthRange(0.1,1.0);
SoGLRenderAction gl(SbViewportRegion(fbObject->size().width(),fbObject->size().height()));
gl.apply(view->getSoRenderManager()->getSceneGraph());
fbObject->release();
#endif
}
void paintGL()
{
const SbViewportRegion vp = view->getSoRenderManager()->getViewportRegion();
SbVec2s size = vp.getViewportSizePixels();
glDisable(GL_LIGHTING);
glViewport(0, 0, size[0], size[1]);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glDisable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, fbObject->texture());
glColor3f(1.0, 1.0, 1.0);
GLfloat s = size[0] / GLfloat(fbObject->size().width());
GLfloat t = size[1] / GLfloat(fbObject->size().height());
glBegin(GL_QUADS);
glTexCoord2f(0.0, 0.0);
glVertex2f(-1.0, -1.0);
glTexCoord2f(s, 0.0);
glVertex2f(1.0, -1.0);
glTexCoord2f(s, t);
glVertex2f(1.0, 1.0);
glTexCoord2f(0.0, t);
glVertex2f(-1.0, 1.0);
glEnd();
if (rubberBandIsShown) {
glMatrixMode(GL_PROJECTION);
glOrtho(0, size[0], size[1], 0, 0, 100);
glMatrixMode(GL_MODELVIEW);
glDisable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glLineWidth(4.0);
glColor4f(1.0f, 1.0f, 1.0f, 0.2f);
glRecti(rubberBandCorner1.x(), rubberBandCorner1.y(),
rubberBandCorner2.x(), rubberBandCorner2.y());
glColor4f(1.0, 1.0, 0.0, 0.5);
glLineStipple(3, 0xAAAA);
glEnable(GL_LINE_STIPPLE);
glBegin(GL_LINE_LOOP);
glVertex2i(rubberBandCorner1.x(), rubberBandCorner1.y());
glVertex2i(rubberBandCorner2.x(), rubberBandCorner1.y());
glVertex2i(rubberBandCorner2.x(), rubberBandCorner2.y());
glVertex2i(rubberBandCorner1.x(), rubberBandCorner2.y());
glEnd();
glLineWidth(1.0);
glDisable(GL_LINE_STIPPLE);
glDisable(GL_BLEND);
}
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
}
void mousePressEvent(QMouseEvent *event)
{
rubberBandCorner1 = event->pos();
rubberBandCorner2 = event->pos();
rubberBandIsShown = true;
}
void mouseMoveEvent(QMouseEvent *event)
{
if (rubberBandIsShown) {
rubberBandCorner2 = event->pos();
// updateGL();
}
}
void mouseReleaseEvent(QMouseEvent * /* event */)
{
if (rubberBandIsShown) {
rubberBandIsShown = false;
// updateGL();
}
}
};
class Rubberband : public Gui::GLGraphicsItem
{
QPoint rubberBandCorner1;
QPoint rubberBandCorner2;
Gui::View3DInventorViewer* view;
public:
Rubberband(Gui::View3DInventorViewer* v) :view(v)
{
rubberBandCorner1.setX(200);
rubberBandCorner1.setY(200);
rubberBandCorner2.setX(800);
rubberBandCorner2.setY(600);
v->setRenderType(Gui::View3DInventorViewer::Image);
v->getSoRenderManager()->scheduleRedraw();
}
~Rubberband()
{
}
void paintGL()
{
const SbViewportRegion vp = view->getSoRenderManager()->getViewportRegion();
SbVec2s size = vp.getViewportSizePixels();
//glDisable(GL_LIGHTING);
//glViewport(0, 0, size[0], size[1]);
//glMatrixMode(GL_PROJECTION);
//glLoadIdentity();
//glMatrixMode(GL_MODELVIEW);
//glLoadIdentity();
//glDisable(GL_DEPTH_TEST);
//glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glOrtho(0, size[0], size[1], 0, 0, 100);
glMatrixMode(GL_MODELVIEW);
glDisable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glLineWidth(4.0);
glColor4f(1.0f, 1.0f, 1.0f, 0.2f);
glRecti(rubberBandCorner1.x(), rubberBandCorner1.y(),
rubberBandCorner2.x(), rubberBandCorner2.y());
glColor4f(1.0, 1.0, 0.0, 0.5);
glLineStipple(3, 0xAAAA);
glEnable(GL_LINE_STIPPLE);
glBegin(GL_LINE_LOOP);
glVertex2i(rubberBandCorner1.x(), rubberBandCorner1.y());
glVertex2i(rubberBandCorner2.x(), rubberBandCorner1.y());
glVertex2i(rubberBandCorner2.x(), rubberBandCorner2.y());
glVertex2i(rubberBandCorner1.x(), rubberBandCorner2.y());
glEnd();
glLineWidth(1.0);
glDisable(GL_LINE_STIPPLE);
glDisable(GL_BLEND);
//glEnable(GL_LIGHTING);
//glEnable(GL_DEPTH_TEST);
}
};
void paintSelection()
{
#if 0
SoAnnotation* hudRoot = new SoAnnotation;
hudRoot->ref();
SoOrthographicCamera* hudCam = new SoOrthographicCamera();
hudCam->viewportMapping = SoCamera::LEAVE_ALONE;
// Set the position in the window.
// [0, 0] is in the center of the screen.
//
SoTranslation* hudTrans = new SoTranslation;
hudTrans->translation.setValue(-1.0f, -1.0f, 0.0f);
QImage image(100,100,QImage::Format_ARGB32_Premultiplied);
image.fill(0x00000000);
SoSFImage sfimage;
Gui::BitmapFactory().convert(image, sfimage);
SoImage* hudImage = new SoImage();
hudImage->image = sfimage;
// Assemble the parts...
//
hudRoot->addChild(hudCam);
hudRoot->addChild(hudTrans);
hudRoot->addChild(hudImage);
Gui::View3DInventorViewer* viewer = this->getViewer();
static_cast<SoGroup*>(viewer->getSceneGraph())->addChild(hudRoot);
QWidget* gl = viewer->getGLWidget();
DrawingPlane pln(hudImage->image, viewer, gl);
gl->installEventFilter(&pln);
QEventLoop loop;
QObject::connect(&pln, SIGNAL(emitSelection()), &loop, SLOT(quit()));
loop.exec();
static_cast<SoGroup*>(viewer->getSceneGraph())->removeChild(hudRoot);
#endif
}
// ---------------------------------------
#include <Gui/NavigationStyle.h>
#include <Gui/View3DInventor.h>
#include <Gui/View3DInventorViewer.h>
#if 0
void MeshSelection::prepareFreehandSelection(bool add)
{
// a rubberband to select a rectangle area of the meshes
Gui::View3DInventorViewer* viewer = this->getViewer();
if (viewer) {
stopInteractiveCallback(viewer);
startInteractiveCallback(viewer, selectGLCallback);
// set cross cursor
DrawingPlane* brush = new DrawingPlane();
//brush->setColor(1.0f,0.0f,0.0f);
//brush->setLineWidth(3.0f);
viewer->navigationStyle()->startSelection(brush);
SoQtCursor::CustomCursor custom;
custom.dim.setValue(16, 16);
custom.hotspot.setValue(7, 7);
custom.bitmap = cross_bitmap;
custom.mask = cross_mask_bitmap;
viewer->setComponentCursor(SoQtCursor(&custom));
this->addToSelection = add;
}
}
#endif
DrawingPlane::DrawingPlane()
{
//image.fill(qRgba(255, 255, 255, 0));
myPenWidth = 50;
QRgb p = qRgba(255,255,0,0);
int q = p;//((p << 16) & 0xff0000) | ((p >> 16) & 0xff) | (p & 0xff00ff00);
int r = qRed(q);
int g = qGreen(q);
int b = qBlue(q);
myPenColor = qRgb(r,g,b);//Qt::yellow;
myRadius = 5.0f;
}
DrawingPlane::~DrawingPlane()
{
terminate();
}
void DrawingPlane::initialize()
{
fbo = new QtGLFramebufferObject(128, 128,QtGLFramebufferObject::Depth);
}
void DrawingPlane::terminate()
{
fbo->bind();
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glDepthRange(0.1,1.0);
glEnable(GL_LINE_SMOOTH);
SoGLRenderAction a(SbViewportRegion(128,128));
a.apply(_pcView3D->getSoRenderManager()->getSceneGraph());
fbo->release();
fbo->toImage().save(QString::fromLatin1("C:/Temp/DrawingPlane.png"));
delete fbo;
}
void DrawingPlane::draw ()
{return;
if (1/*mustRedraw*/) {
SbVec2s view = _pcView3D->getSoRenderManager()->getSize();
static_cast<QtGLWidget*>(_pcView3D->getGLWidget())->makeCurrent();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, view[0], 0, view[1], -1, 1);
// Store GL state
glPushAttrib(GL_ALL_ATTRIB_BITS);
GLfloat depthrange[2];
glGetFloatv(GL_DEPTH_RANGE, depthrange);
GLdouble projectionmatrix[16];
glGetDoublev(GL_PROJECTION_MATRIX, projectionmatrix);
glDepthFunc(GL_ALWAYS);
glDepthMask(GL_TRUE);
glDepthRange(0,0);
glEnable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glEnable(GL_COLOR_MATERIAL);
glDisable(GL_BLEND);
glLineWidth(1.0f);
glColor4f(1.0, 1.0, 1.0, 0.0);
glViewport(0, 0, view[0], view[1]);
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(GL_XOR);
glDrawBuffer(GL_FRONT);
//fbo->drawTexture(QPointF(), fbo->texture());
glFlush();
glLogicOp(GL_COPY);
glDisable(GL_COLOR_LOGIC_OP);
// Reset original state
glDepthRange(depthrange[0], depthrange[1]);
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(projectionmatrix);
glPopAttrib();
glPopMatrix();
}
}
#include <Inventor/events/SoMouseButtonEvent.h>
int DrawingPlane::mouseButtonEvent(const SoMouseButtonEvent * const e, const QPoint& pos)
{
const int button = e->getButton();
const SbBool press = e->getState() == SoButtonEvent::DOWN ? true : false;
if (press) {
switch (button)
{
case SoMouseButtonEvent::BUTTON1:
{
scribbling = true;
lastPoint = pos;
} break;
default:
{
} break;
}
}
// release
else {
switch (button)
{
case SoMouseButtonEvent::BUTTON1:
drawLineTo(pos);
scribbling = false;
return Finish;
default:
{
} break;
}
}
return Continue;
}
int DrawingPlane::locationEvent(const SoLocation2Event * const, const QPoint& pos)
{
if (scribbling) {
drawLineTo(pos);
// filter out some points
if (selection.isEmpty()) {
selection << pos;
}
else {
const QPoint& top = selection.last();
if (abs(top.x()-pos.x()) > 20 ||
abs(top.y()-pos.y()) > 20)
selection << pos;
}
draw();
}
return Continue;
}
int DrawingPlane::keyboardEvent(const SoKeyboardEvent * const)
{
return Continue;
}
void DrawingPlane::drawLineTo(const QPoint &endPoint)
{
Q_UNUSED(endPoint);
return;
#if !defined(HAVE_QT5_OPENGL)
QPainter painter(fbo);
//QPainter painter(_pcView3D->getGLWidget());
painter.setPen(QPen(myPenColor, myPenWidth, Qt::SolidLine, Qt::RoundCap,
Qt::RoundJoin));
//painter.setOpacity(0.5);
//painter.drawLine(lastPoint.x(), fbo->height()-lastPoint.y(), endPoint.x(), fbo->height()-endPoint.y());
painter.drawLine(lastPoint.x(), lastPoint.y(), endPoint.x(), endPoint.y());
//_pcView3D->scheduleRedraw();
lastPoint = endPoint;
#endif
}
//Gui::Document* doc = Gui::Application::Instance->activeDocument();
//Gui::View3DInventorViewer* view = static_cast<Gui::View3DInventor*>(doc->getActiveView())->getViewer();
////view->addGraphicsItem(new MyPaintable(view));
////view->addGraphicsItem(new Teapots(view));
//view->addGraphicsItem(new Rubberband(view));
//....
//Gui::Document* doc = Gui::Application::Instance->activeDocument();
//Gui::View3DInventorViewer* view = static_cast<Gui::View3DInventor*>(doc->getActiveView())->getViewer();
//view->clearGraphicsItems();
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