/***************************************************************************
 *   Copyright (c) 2006 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_
# include <algorithm>
# include <QFileInfo>
# include <QInputDialog>
# include <Python.h>
# include <Inventor/events/SoMouseButtonEvent.h>
#endif

#include <Base/Exception.h>
#include <Base/Matrix.h>
#include <App/Application.h>
#include <App/Document.h>
#include <Gui/Application.h>
#include <Gui/Document.h>
#include <Gui/MainWindow.h>
#include <Gui/Command.h>
#include <Gui/FileDialog.h>
#include <Gui/Selection.h>
#include <Gui/ViewProvider.h>
#include <Gui/View3DInventor.h>
#include <Gui/View3DInventorViewer.h>
#include <Gui/WaitCursor.h>

#include "../App/PointsFeature.h"
#include "../App/Properties.h"
#include "DlgPointsReadImp.h"
#include "ViewProvider.h"


//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//===========================================================================
// CmdPointsImport
//===========================================================================
DEF_STD_CMD_A(CmdPointsImport);

CmdPointsImport::CmdPointsImport()
  : Command("Points_Import")
{
    sAppModule    = "Points";
    sGroup        = QT_TR_NOOP("Points");
    sMenuText     = QT_TR_NOOP("Import points...");
    sToolTipText  = QT_TR_NOOP("Imports a point cloud");
    sWhatsThis    = "Points_Import";
    sStatusTip    = QT_TR_NOOP("Imports a point cloud");
    sPixmap       = "Points_Import_Point_cloud";
}

void CmdPointsImport::activated(int iMsg)
{
    Q_UNUSED(iMsg);

    QString fn = Gui::FileDialog::getOpenFileName(Gui::getMainWindow(),
      QString::null, QString(), QString::fromLatin1("%1 (*.asc *.pcd *.ply);;%2 (*.*)")
      .arg(QObject::tr("Point formats"), QObject::tr("All Files")));
    if (fn.isEmpty())
        return;

    if (!fn.isEmpty()) {
        QFileInfo fi;
        fi.setFile(fn);

        Gui::Document* doc = getActiveGuiDocument();
        openCommand("Import points");
        addModule(Command::App, "Points");
        doCommand(Command::Doc, "Points.insert(\"%s\", \"%s\")",
                  fn.toUtf8().data(), doc->getDocument()->getName());
        commitCommand();

        updateActive();
    }
}

bool CmdPointsImport::isActive(void)
{
    if (getActiveGuiDocument())
        return true;
    else
        return false;
}

DEF_STD_CMD_A(CmdPointsExport);

CmdPointsExport::CmdPointsExport()
  : Command("Points_Export")
{
    sAppModule    = "Points";
    sGroup        = QT_TR_NOOP("Points");
    sMenuText     = QT_TR_NOOP("Export points...");
    sToolTipText  = QT_TR_NOOP("Exports a point cloud");
    sWhatsThis    = "Points_Export";
    sStatusTip    = QT_TR_NOOP("Exports a point cloud");
    sPixmap       = "Points_Export_Point_cloud";
}

void CmdPointsExport::activated(int iMsg)
{
    Q_UNUSED(iMsg);

    addModule(Command::App, "Points");
    std::vector<App::DocumentObject*> points = getSelection().getObjectsOfType(Points::Feature::getClassTypeId());
    for (std::vector<App::DocumentObject*>::const_iterator it = points.begin(); it != points.end(); ++it) {
        QString fn = Gui::FileDialog::getSaveFileName(Gui::getMainWindow(),
          QString::null, QString(), QString::fromLatin1("%1 (*.asc *.pcd *.ply);;%2 (*.*)")
          .arg(QObject::tr("Point formats"), QObject::tr("All Files")));
        if (fn.isEmpty())
            break;

        if (!fn.isEmpty()) {
            doCommand(Command::Doc, "Points.export([App.ActiveDocument.%s], \"%s\")",
                      (*it)->getNameInDocument(), fn.toUtf8().data());
        }
    }
}

bool CmdPointsExport::isActive(void)
{
    return getSelection().countObjectsOfType(Points::Feature::getClassTypeId()) > 0;
}

DEF_STD_CMD_A(CmdPointsTransform);

CmdPointsTransform::CmdPointsTransform()
  :Command("Points_Transform")
{
    sAppModule    = "Points";
    sGroup        = QT_TR_NOOP("Points");
    sMenuText     = QT_TR_NOOP("Transform Points");
    sToolTipText  = QT_TR_NOOP("Test to transform a point cloud");
    sWhatsThis    = "Points_Transform";
    sStatusTip    = QT_TR_NOOP("Test to transform a point cloud");
    sPixmap       = "Test1";
}

void CmdPointsTransform::activated(int iMsg)
{
    Q_UNUSED(iMsg);

    // This is a test command to transform a point cloud directly written in C++ (not Python)
    Base::Placement trans;
    trans.setRotation(Base::Rotation(Base::Vector3d(0.0, 0.0, 1.0), 1.570796));

    openCommand("Transform points");
    //std::vector<App::DocumentObject*> points = getSelection().getObjectsOfType(Points::Feature::getClassTypeId());
    //for (std::vector<App::DocumentObject*>::const_iterator it = points.begin(); it != points.end(); ++it) {
    //    Base::Placement p = static_cast<Points::Feature*>(*it)->Placement.getValue();
    //    p._rot *= Base::Rotation(Base::Vector3d(0.0, 0.0, 1.0), 1.570796);
    //    static_cast<Points::Feature*>(*it)->Placement.setValue(p);
    //}
    commitCommand();
}

bool CmdPointsTransform::isActive(void)
{
    return getSelection().countObjectsOfType(Points::Feature::getClassTypeId()) > 0;
}

DEF_STD_CMD_A(CmdPointsConvert);

CmdPointsConvert::CmdPointsConvert()
  :Command("Points_Convert")
{
    sAppModule    = "Points";
    sGroup        = QT_TR_NOOP("Points");
    sMenuText     = QT_TR_NOOP("Convert to points...");
    sToolTipText  = QT_TR_NOOP("Convert to points");
    sWhatsThis    = "Points_Convert";
    sStatusTip    = QT_TR_NOOP("Convert to points");
}

void CmdPointsConvert::activated(int iMsg)
{
    Q_UNUSED(iMsg);

    bool ok;
    double tol = QInputDialog::getDouble(Gui::getMainWindow(), QObject::tr("Distance"),
        QObject::tr("Enter maximum distance:"), 0.1, 0.05, 10.0, 2, &ok);
    if (!ok)
        return;

    Gui::WaitCursor wc;
    openCommand("Convert to points");
    std::vector<App::DocumentObject*> geoObject = getSelection().getObjectsOfType(Base::Type::fromName("App::GeoFeature"));

    bool addedPoints = false;
    for (std::vector<App::DocumentObject*>::iterator it = geoObject.begin(); it != geoObject.end(); ++it) {
        Base::Placement globalPlacement = static_cast<App::GeoFeature*>(*it)->globalPlacement();
        Base::Placement localPlacement = static_cast<App::GeoFeature*>(*it)->Placement.getValue();
        localPlacement = globalPlacement * localPlacement.inverse();
        const App::PropertyComplexGeoData* prop = static_cast<App::GeoFeature*>(*it)->getPropertyOfGeometry();
        if (prop) {
            const Data::ComplexGeoData* data = prop->getComplexData();
            std::vector<Base::Vector3d> vertexes;
            std::vector<Base::Vector3d> normals;
            data->getPoints(vertexes, normals, static_cast<float>(tol));
            if (!vertexes.empty()) {
                Points::Feature* fea = 0;
                if (vertexes.size() == normals.size()) {
                    fea = static_cast<Points::Feature*>(Base::Type::fromName("Points::FeatureCustom").createInstance());
                    if (!fea) {
                        Base::Console().Error("Failed to create instance of 'Points::FeatureCustom'\n");
                        continue;
                    }
                    Points::PropertyNormalList* prop = static_cast<Points::PropertyNormalList*>
                        (fea->addDynamicProperty("Points::PropertyNormalList", "Normal"));
                    if (prop) {
                        std::vector<Base::Vector3f> normf;
                        normf.resize(normals.size());
                        std::transform(normals.begin(), normals.end(), normf.begin(), Base::toVector<float, double>);
                        prop->setValues(normf);
                    }
                }
                else {
                    fea = new Points::Feature;
                }

                Points::PointKernel kernel;
                kernel.reserve(vertexes.size());
                for (std::vector<Base::Vector3d>::iterator pt = vertexes.begin(); pt != vertexes.end(); ++pt)
                    kernel.push_back(*pt);
                fea->Points.setValue(kernel);
                fea->Placement.setValue(localPlacement);

                App::Document* doc = (*it)->getDocument();
                doc->addObject(fea, "Points");
                fea->purgeTouched();
                addedPoints = true;
            }
        }
    }

    if (addedPoints)
        commitCommand();
    else
        abortCommand();
}

bool CmdPointsConvert::isActive(void)
{
    return getSelection().countObjectsOfType(Base::Type::fromName("App::GeoFeature")) > 0;
}

DEF_STD_CMD_A(CmdPointsPolyCut);

CmdPointsPolyCut::CmdPointsPolyCut()
  :Command("Points_PolyCut")
{
    sAppModule    = "Points";
    sGroup        = QT_TR_NOOP("Points");
    sMenuText     = QT_TR_NOOP("Cut point cloud");
    sToolTipText  = QT_TR_NOOP("Cuts a point cloud with a picked polygon");
    sWhatsThis    = "Points_PolyCut";
    sStatusTip    = QT_TR_NOOP("Cuts a point cloud with a picked polygon");
    sPixmap       = "PolygonPick";
}

void CmdPointsPolyCut::activated(int iMsg)
{
    Q_UNUSED(iMsg);

    std::vector<App::DocumentObject*> docObj = Gui::Selection().getObjectsOfType(Points::Feature::getClassTypeId());
    for (std::vector<App::DocumentObject*>::iterator it = docObj.begin(); it != docObj.end(); ++it) {
        if (it == docObj.begin()) {
            Gui::Document* doc = getActiveGuiDocument();
            Gui::MDIView* view = doc->getActiveView();
            if (view->getTypeId().isDerivedFrom(Gui::View3DInventor::getClassTypeId())) {
                Gui::View3DInventorViewer* viewer = ((Gui::View3DInventor*)view)->getViewer();
                viewer->setEditing(true);
                viewer->startSelection(Gui::View3DInventorViewer::Lasso);
                viewer->addEventCallback(SoMouseButtonEvent::getClassTypeId(), PointsGui::ViewProviderPoints::clipPointsCallback);
            }
            else {
                return;
            }
        }

        Gui::ViewProvider* pVP = getActiveGuiDocument()->getViewProvider( *it );
        pVP->startEditing();
    }
}

bool CmdPointsPolyCut::isActive(void)
{
    // Check for the selected mesh feature (all Mesh types)
    return getSelection().countObjectsOfType(Points::Feature::getClassTypeId()) > 0;
}

DEF_STD_CMD_A(CmdPointsMerge)

CmdPointsMerge::CmdPointsMerge()
  :Command("Points_Merge")
{
    sAppModule    = "Points";
    sGroup        = QT_TR_NOOP("Points");
    sMenuText     = QT_TR_NOOP("Merge point clouds");
    sToolTipText  = QT_TR_NOOP("Merge several point clouds into one");
    sWhatsThis    = "Points_Merge";
    sStatusTip    = QT_TR_NOOP("Merge several point clouds into one");
}

void CmdPointsMerge::activated(int iMsg)
{
    Q_UNUSED(iMsg);

    App::Document* doc = App::GetApplication().getActiveDocument();
    doc->openTransaction("Merge point clouds");
    Points::Feature* pts = static_cast<Points::Feature*>(doc->addObject("Points::Feature", "Merged Points"));
    Points::PointKernel* kernel = pts->Points.startEditing();

    std::vector<App::DocumentObject*> docObj = Gui::Selection().getObjectsOfType(Points::Feature::getClassTypeId());
    for (std::vector<App::DocumentObject*>::iterator it = docObj.begin(); it != docObj.end(); ++it) {
        const Points::PointKernel& k = static_cast<Points::Feature*>(*it)->Points.getValue();
        std::size_t numPts = kernel->size();
        kernel->resize(numPts + k.size());
        for (std::size_t i=0; i<k.size(); ++i) {
            kernel->setPoint(i+numPts, k.getPoint(i));
        }
    }

    pts->Points.finishEditing();
    doc->commitTransaction();
    updateActive();
}

bool CmdPointsMerge::isActive(void)
{
    return getSelection().countObjectsOfType(Points::Feature::getClassTypeId()) > 1;
}

void CreatePointsCommands(void)
{
    Gui::CommandManager &rcCmdMgr = Gui::Application::Instance->commandManager();
    rcCmdMgr.addCommand(new CmdPointsImport());
    rcCmdMgr.addCommand(new CmdPointsExport());
    rcCmdMgr.addCommand(new CmdPointsTransform());
    rcCmdMgr.addCommand(new CmdPointsConvert());
    rcCmdMgr.addCommand(new CmdPointsPolyCut());
    rcCmdMgr.addCommand(new CmdPointsMerge());
}