Files
create/src/Mod/TechDraw/Gui/DrawGuiUtil.cpp
wandererfan 95f95d54fb Use Face or 3D direction for View and ProjGroup
- use current 3D window direction as starting
  direction for DrawViewPart and ProjectionGroup
- if a Face is selected, use Face normal as
  starting direction.
2018-09-06 08:00:00 +02:00

288 lines
11 KiB
C++

/***************************************************************************
* Copyright (c) 2016 WandererFan <wandererfan@gmail.com> *
* *
* 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 <sstream>
# include <cstring>
# include <cstdlib>
# include <exception>
# include <boost/regex.hpp>
# include <QString>
# include <QStringList>
# include <QRegExp>
# include <QMessageBox>
#include <QRectF>
#endif
#include <gp_Vec.hxx>
#include <gp_Pnt.hxx>
#include <gp_Trsf.hxx>
#include <gp_Dir.hxx>
#include <gp_Ax2.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepLProp_SLProps.hxx>
#include <App/Application.h>
#include <App/Document.h>
#include <App/DocumentObject.h>
#include <App/FeaturePython.h>
#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/Parameter.h>
#include <Base/Type.h>
#include <Gui/Application.h>
#include <Gui/BitmapFactory.h>
#include <Gui/Command.h>
#include <Gui/Control.h>
#include <Gui/Document.h>
#include <Gui/Selection.h>
#include <Gui/MainWindow.h>
#include <Gui/MDIView.h>
#include <Gui/View3DInventor.h>
#include <Gui/View3DInventorViewer.h>
#include <Inventor/SbVec3f.h>
#include <Mod/Part/App/PartFeature.h>
#include <Mod/Part/App/Part2DObject.h>
#include <Mod/Spreadsheet/App/Sheet.h>
#include <Mod/TechDraw/App/DrawPage.h>
#include <Mod/TechDraw/App/DrawViewPart.h>
#include <Mod/TechDraw/App/DrawUtil.h>
#include <Mod/TechDraw/App/Geometry.h>
#include "QGVPage.h"
#include "MDIViewPage.h"
#include "ViewProviderPage.h"
#include "DrawGuiUtil.h"
using namespace TechDrawGui;
using namespace TechDraw;
//===========================================================================
// validate helper routines
//===========================================================================
//find a page in Selection, Document or CurrentWindow.
TechDraw::DrawPage* DrawGuiUtil::findPage(Gui::Command* cmd)
{
TechDraw::DrawPage* page;
int failCase = 0;
//check Selection and/or Document for a DrawPage
std::vector<App::DocumentObject*> selPages = cmd->getSelection().getObjectsOfType(TechDraw::DrawPage::getClassTypeId());
if (selPages.empty()) { //no page in selection
selPages = cmd->getDocument()->getObjectsOfType(TechDraw::DrawPage::getClassTypeId());
if (selPages.empty()) { //no page in document
page = nullptr;
failCase = 1;
} else if (selPages.size() > 1) { //multiple pages in document, but none selected
page = nullptr;
failCase = 2;
} else { //only page in document - use it
page = static_cast<TechDraw::DrawPage*>(selPages.front());
}
} else if (selPages.size() > 1) { //multiple pages in selection
page = nullptr;
failCase = 3;
} else { //use only page in selection
page = static_cast<TechDraw::DrawPage*>(selPages.front());
}
//if no page is selected
//default to currently displayed DrawPage is there is one //code moved Coverity CID 174668
if (page == nullptr) {
if ((failCase == 1) ||
(failCase == 2)) {
Gui::MainWindow* w = Gui::getMainWindow();
Gui::MDIView* mv = w->activeWindow();
MDIViewPage* mvp = dynamic_cast<MDIViewPage*>(mv);
if (mvp) {
QString windowTitle = mvp->windowTitle();
QGVPage* qp = mvp->getQGVPage();
page = qp->getDrawPage();
} else {
failCase = 1;
}
}
}
if (page == nullptr) {
switch(failCase) {
case 1:
QMessageBox::warning(Gui::getMainWindow(), QObject::tr("No page found"),
QObject::tr("Create/select a page first."));
break;
case 2:
QMessageBox::warning(Gui::getMainWindow(), QObject::tr("Which page?"),
QObject::tr("Can not determine correct page."));
break;
case 3:
QMessageBox::warning(Gui::getMainWindow(), QObject::tr("Too many pages"),
QObject::tr("Select exactly 1 page."));
}
}
return page;
}
bool DrawGuiUtil::needPage(Gui::Command* cmd)
{
//need a Document and a Page
bool active = false;
if (cmd->hasActiveDocument()) {
auto drawPageType( TechDraw::DrawPage::getClassTypeId() );
auto selPages = cmd->getDocument()->getObjectsOfType(drawPageType);
if (!selPages.empty()) {
active = true;
}
}
return active;
}
bool DrawGuiUtil::needView(Gui::Command* cmd, bool partOnly)
{
bool haveView = false;
if (cmd->hasActiveDocument()) {
if (partOnly) {
auto drawPartType (TechDraw::DrawViewPart::getClassTypeId());
auto selParts = cmd->getDocument()->getObjectsOfType(drawPartType);
if (!selParts.empty()) {
haveView = true;
}
} else {
auto drawViewType (TechDraw::DrawView::getClassTypeId());
auto selParts = cmd->getDocument()->getObjectsOfType(drawViewType);
if (!selParts.empty()) {
haveView = true;
}
}
}
return haveView;
}
void DrawGuiUtil::dumpRectF(const char* text, const QRectF& r)
{
Base::Console().Message("DUMP - dumpRectF - %s\n",text);
double left = r.left();
double right = r.right();
double top = r.top();
double bottom = r.bottom();
Base::Console().Message("Extents: L: %.3f, R: %.3f, T: %.3f, B: %.3f\n",left,right,top,bottom);
Base::Console().Message("Size: W: %.3f H: %.3f\n",r.width(),r.height());
Base::Console().Message("Centre: (%.3f, %.3f)\n",r.center().x(),r.center().y());
}
void DrawGuiUtil::dumpPointF(const char* text, const QPointF& p)
{
Base::Console().Message("DUMP - dumpPointF - %s\n",text);
Base::Console().Message("Point: (%.3f, %.3f)\n",p.x(),p.y());
}
std::pair<Base::Vector3d,Base::Vector3d> DrawGuiUtil::get3DDirAndRot()
{
std::pair<Base::Vector3d,Base::Vector3d> result;
Base::Vector3d viewDir(0.0,-1.0,0.0); //default to front
Base::Vector3d viewUp(0.0,0.0,1.0); //default to top
Base::Vector3d viewRight(1.0,0.0,0.0); //default to right
std::list<Gui::MDIView*> mdis = Gui::Application::Instance->activeDocument()->getMDIViews();
Gui::View3DInventor *view;
Gui::View3DInventorViewer *viewer = nullptr;
for (auto& m: mdis) { //find the 3D viewer
view = dynamic_cast<Gui::View3DInventor*>(m);
if (view) {
viewer = view->getViewer();
break;
}
}
if (!viewer) {
Base::Console().Log("LOG - DrawGuiUtil could not find a 3D viewer\n");
return std::make_pair( viewDir, viewRight);
}
SbVec3f dvec = viewer->getViewDirection();
SbVec3f upvec = viewer->getUpDirection();
viewDir = Base::Vector3d(dvec[0], dvec[1], dvec[2]);
viewUp = Base::Vector3d(upvec[0],upvec[1],upvec[2]);
Base::Vector3d dirXup = viewDir.Cross(viewUp); //dir X up should give local Right
viewDir = viewDir * (-1.0); // Inventor dir is opposite TD projection dir
result = std::make_pair(viewDir,dirXup);
return result;
}
std::pair<Base::Vector3d,Base::Vector3d> DrawGuiUtil::getProjDirFromFace(Part::Feature* obj, std::string faceName)
{
std::pair<Base::Vector3d,Base::Vector3d> d3Dirs = get3DDirAndRot();
Base::Vector3d d3Up = (d3Dirs.first).Cross(d3Dirs.second);
std::pair<Base::Vector3d,Base::Vector3d> dirs;
dirs.first = Base::Vector3d(0.0,0.0,1.0); //set a default
dirs.second = Base::Vector3d(1.0,0.0,0.0);
Base::Vector3d projDir, rotVec;
projDir = d3Dirs.first;
rotVec = d3Dirs.second;
if (DrawUtil::getGeomTypeFromName(faceName) != "Face") {
Base::Console().Warning("getProjDirFromFace(%s) is not a Face\n",faceName.c_str());
return dirs;
}
Part::TopoShape ts = obj->Shape.getShape();
ts.setPlacement(obj->globalPlacement());
TopoDS_Shape subShape = ts.getSubShape(faceName.c_str());
const TopoDS_Face& face = TopoDS::Face(subShape);
TopAbs_Orientation orient = face.Orientation();
BRepAdaptor_Surface adapt(face);
double u1 = adapt.FirstUParameter();
double u2 = adapt.LastUParameter();
double v1 = adapt.FirstVParameter();
double v2 = adapt.LastVParameter();
double uMid = (u1+u2)/2.0;
double vMid = (v1+v2)/2.0;
BRepLProp_SLProps props(adapt,uMid,vMid,2,Precision::Confusion());
if (props.IsNormalDefined()) {
gp_Dir vec = props.Normal();
projDir = Base::Vector3d(vec.X(),vec.Y(),vec.Z());
rotVec = projDir.Cross(d3Up);
if (orient != TopAbs_FORWARD) {
projDir = projDir * (-1.0);
}
}
else {
Base::Console().Log("Selected Face has no normal at midpoint\n");
}
dirs = std::make_pair(projDir,rotVec);
return dirs;
}