/************************************************************************
 **
 **  @file   vtoolcutspline.cpp
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   15 12, 2013
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentine project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2013-2015 Valentina project
 **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
 **
 **  Valentina is free software: you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License as published by
 **  the Free Software Foundation, either version 3 of the License, or
 **  (at your option) any later version.
 **
 **  Valentina 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 General Public License for more details.
 **
 **  You should have received a copy of the GNU General Public License
 **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#include "vtoolcutspline.h"

#include <QPointF>
#include <QSharedPointer>
#include <QStaticStringData>
#include <QStringData>
#include <QStringDataPtr>
#include <new>

#include "../../../../../dialogs/tools/dialogcutspline.h"
#include "../../../../../dialogs/tools/dialogtool.h"
#include "../../../../../visualization/visualization.h"
#include "../../../../../visualization/path/vistoolcutspline.h"
#include "../ifc/exception/vexception.h"
#include "../ifc/ifcdef.h"
#include "../vgeometry/vabstractcubicbezier.h"
#include "../vgeometry/vabstractcurve.h"
#include "../vgeometry/vpointf.h"
#include "../vgeometry/vspline.h"
#include "../vmisc/vabstractapplication.h"
#include "../vmisc/vcommonsettings.h"
#include "../vpatterndb/vcontainer.h"
#include "../vpatterndb/vtranslatevars.h"
#include "../vwidgets/vmaingraphicsscene.h"
#include "../../../../vabstracttool.h"
#include "../../../vdrawtool.h"
#include "vtoolcut.h"

template <class T> class QSharedPointer;

const QString VToolCutSpline::ToolType   = QStringLiteral("cutSpline");
const QString VToolCutSpline::AttrSpline = QStringLiteral("spline");

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief VToolCutSpline constructor.
 * @param doc dom document container.
 * @param data container with variables.
 * @param id object id in container.
 * @param formula string with formula length first spline.
 * @param splineId id spline in data container.
 * @param typeCreation way we create this tool.
 * @param parent parent object.
 */
VToolCutSpline::VToolCutSpline(VAbstractPattern *doc, VContainer *data, const quint32 &id, const QString &formula,
                               const quint32 &splineId, const Source &typeCreation, QGraphicsItem *parent)
    :VToolCut(doc, data, id, formula, splineId, parent)
{
    ToolCreation(typeCreation);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief setDialog set dialog when user want change tool option.
 */
void VToolCutSpline::setDialog()
{
    SCASSERT(not m_dialog.isNull())
    QSharedPointer<DialogCutSpline> dialogTool = m_dialog.objectCast<DialogCutSpline>();
    SCASSERT(not dialogTool.isNull())
    const QSharedPointer<VPointF> point = VAbstractTool::data.GeometricObject<VPointF>(id);
    dialogTool->SetFormula(formula);
    dialogTool->setSplineId(curveCutId);
    dialogTool->SetPointName(point->name());
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief Create help create tool from GUI.
 * @param dialog dialog.
 * @param scene pointer to scene.
 * @param doc dom document container.
 * @param data container with variables.
 */
VToolCutSpline* VToolCutSpline::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
                                       VAbstractPattern *doc, VContainer *data)
{
    SCASSERT(not dialog.isNull())
    QSharedPointer<DialogCutSpline> dialogTool = dialog.objectCast<DialogCutSpline>();
    SCASSERT(not dialogTool.isNull())
    const QString pointName = dialogTool->getPointName();
    QString formula = dialogTool->GetFormula();
    const quint32 splineId = dialogTool->getSplineId();
    VToolCutSpline* point = Create(0, pointName, formula, splineId, 5, 10, scene, doc, data, Document::FullParse,
                                   Source::FromGui);
    if (point != nullptr)
    {
        point->m_dialog = dialogTool;
    }
    return point;
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief Create help create tool.
 * @param _id tool id, 0 if tool doesn't exist yet.
 * @param pointName point name.
 * @param formula string with formula length first spline.
 * @param splineId id spline in data container.
 * @param mx label bias x axis.
 * @param my label bias y axis.
 * @param scene pointer to scene.
 * @param doc dom document container.
 * @param data container with variables.
 * @param parse parser file mode.
 * @param typeCreation way we create this tool.
 */
VToolCutSpline* VToolCutSpline::Create(const quint32 _id, const QString &pointName, QString &formula,
                                       const quint32 &splineId, const qreal &mx, const qreal &my,
                                       VMainGraphicsScene *scene, VAbstractPattern *doc, VContainer *data,
                                       const Document &parse, const Source &typeCreation)
{
    const auto spl = data->GeometricObject<VAbstractCubicBezier>(splineId);

    const qreal result = CheckFormula(_id, formula, data);

    QPointF spl1p2, spl1p3, spl2p2, spl2p3;
    QPointF point = spl->CutSpline(qApp->toPixel(result), spl1p2, spl1p3, spl2p2, spl2p3);

    quint32 id = _id;
    VPointF *p = new VPointF(point, pointName, mx, my);
    auto spline1 = QSharedPointer<VAbstractBezier>(new VSpline(spl->GetP1(), spl1p2, spl1p3, *p));
    auto spline2 = QSharedPointer<VAbstractBezier>(new VSpline(*p, spl2p2, spl2p3, spl->GetP4()));

    if (typeCreation == Source::FromGui)
    {
        id = data->AddGObject(p);
        data->AddSpline(spline1, NULL_ID, id);
        data->AddSpline(spline2, NULL_ID, id);
    }
    else
    {
        data->UpdateGObject(id, p);
        data->AddSpline(spline1, NULL_ID, id);
        data->AddSpline(spline2, NULL_ID, id);

        if (parse != Document::FullParse)
        {
            doc->UpdateToolData(id, data);
        }
    }

    if (parse == Document::FullParse)
    {
        VDrawTool::AddRecord(id, Tool::CutSpline, doc);
        VToolCutSpline *point = new VToolCutSpline(doc, data, id, formula, splineId, typeCreation);
        scene->addItem(point);
        InitToolConnections(scene, point);
        VAbstractPattern::AddTool(id, point);
        doc->IncrementReferens(spl->getIdTool());
        return point;
    }
    return nullptr;
}

//---------------------------------------------------------------------------------------------------------------------
void VToolCutSpline::ShowVisualization(bool show)
{
    ShowToolVisualization<VisToolCutSpline>(show);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief contextMenuEvent handle context menu events.
 * @param event context menu event.
 */
void VToolCutSpline::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
{
    try
    {
        ContextMenu<DialogCutSpline>(this, event);
    }
    catch(const VExceptionToolWasDeleted &e)
    {
        Q_UNUSED(e)
        return;//Leave this method immediately!!!
    }
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief SaveDialog save options into file after change in dialog.
 */
void VToolCutSpline::SaveDialog(QDomElement &domElement)
{
    SCASSERT(not m_dialog.isNull())
    QSharedPointer<DialogCutSpline> dialogTool = m_dialog.objectCast<DialogCutSpline>();
    SCASSERT(not dialogTool.isNull())
    doc->SetAttribute(domElement, AttrName, dialogTool->getPointName());
    doc->SetAttribute(domElement, AttrLength, dialogTool->GetFormula());
    doc->SetAttribute(domElement, AttrSpline, QString().setNum(dialogTool->getSplineId()));
}

//---------------------------------------------------------------------------------------------------------------------
void VToolCutSpline::SaveOptions(QDomElement &tag, QSharedPointer<VGObject> &obj)
{
    VToolCut::SaveOptions(tag, obj);

    doc->SetAttribute(tag, AttrType, ToolType);
    doc->SetAttribute(tag, AttrLength, formula);
    doc->SetAttribute(tag, AttrSpline, curveCutId);
}

//---------------------------------------------------------------------------------------------------------------------
void VToolCutSpline::ReadToolAttributes(const QDomElement &domElement)
{
    formula = doc->GetParametrString(domElement, AttrLength, "");
    curveCutId = doc->GetParametrUInt(domElement, AttrSpline, NULL_ID_STR);
}

//---------------------------------------------------------------------------------------------------------------------
void VToolCutSpline::SetVisualization()
{
    if (not vis.isNull())
    {
        VisToolCutSpline *visual = qobject_cast<VisToolCutSpline *>(vis);
        SCASSERT(visual != nullptr)

        visual->setObject1Id(curveCutId);
        visual->setLength(qApp->TrVars()->FormulaToUser(formula, qApp->Settings()->GetOsSeparator()));

        const QSharedPointer<VAbstractCurve> curve = VAbstractTool::data.GeometricObject<VAbstractCurve>(curveCutId);
        visual->setLineStyle(LineStyleToPenStyle(curve->GetPenStyle()));

        visual->RefreshGeometry();
    }
}

//---------------------------------------------------------------------------------------------------------------------
QString VToolCutSpline::MakeToolTip() const
{
    const auto spl = VAbstractTool::data.GeometricObject<VAbstractCubicBezier>(curveCutId);

    const QString expression = qApp->TrVars()->FormulaToUser(formula, qApp->Settings()->GetOsSeparator());
    const qreal length = Visualization::FindVal(expression, VAbstractTool::data.DataVariables());

    QPointF spl1p2, spl1p3, spl2p2, spl2p3;
    QPointF point = spl->CutSpline(qApp->toPixel(length), spl1p2, spl1p3, spl2p2, spl2p3);

    VSpline spline1 = VSpline(spl->GetP1(), spl1p2, spl1p3, VPointF(point));
    VSpline spline2 = VSpline(VPointF(point), spl2p2, spl2p3, spl->GetP4());

    const QString curveStr = tr("Curve");
    const QString lengthStr = tr("length");

    const QString toolTip = QString("<table>"
                                    "<tr> <td><b>%1:</b> %2 %3</td> </tr>"
                                    "<tr> <td><b>%4:</b> %5 %3</td> </tr>"
                                    "</table>")
            .arg(curveStr + QLatin1String("1 ") + lengthStr)
            .arg(qApp->fromPixel(spline1.GetLength()))
            .arg(UnitsToStr(qApp->patternUnit(), true))
            .arg(curveStr + QLatin1String("2 ") + lengthStr)
            .arg(qApp->fromPixel(spline2.GetLength()));

    return toolTip;
}