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valentina/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.cpp
Roman Telezhynskyi 3bb657ea1a New internal variable "Length to spline control point". 
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branch : develop
2016-09-24 20:44:06 +03:00

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/************************************************************************
**
** @file vtoolspline.cpp
** @author Roman Telezhynskyi <dismine(at)gmail.com>
** @date November 15, 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 "vtoolspline.h"
#include <QDomElement>
#include <QEvent>
#include <QFlags>
#include <QForeachContainer>
#include <QGraphicsScene>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsView>
#include <QList>
#include <QPen>
#include <QPoint>
#include <QRectF>
#include <QSharedPointer>
#include <QStaticStringData>
#include <QStringData>
#include <QStringDataPtr>
#include <QUndoStack>
#include <QVector>
#include <Qt>
#include <new>
#include "../../../dialogs/tools/dialogspline.h"
#include "../../../dialogs/tools/dialogtool.h"
#include "../../../undocommands/movespline.h"
#include "../../../visualization/visualization.h"
#include "../../../visualization/path/vistoolspline.h"
#include "../ifc/exception/vexception.h"
#include "../ifc/ifcdef.h"
#include "../qmuparser/qmutokenparser.h"
#include "../vgeometry/vabstractcurve.h"
#include "../vgeometry/vgobject.h"
#include "../vgeometry/vpointf.h"
#include "../vgeometry/vspline.h"
#include "../vmisc/vabstractapplication.h"
#include "../vmisc/vmath.h"
#include "../vpatterndb/vcontainer.h"
#include "../vwidgets/vcontrolpointspline.h"
#include "../vwidgets/vmaingraphicsscene.h"
#include "../../vabstracttool.h"
#include "../vdrawtool.h"
#include "vabstractspline.h"
class QDomElement;
class QGraphicsSceneContextMenuEvent;
class QGraphicsSceneHoverEvent;
class QGraphicsSceneMouseEvent;
const QString VToolSpline::ToolType = QStringLiteral("simpleInteractive");
const QString VToolSpline::OldToolType = QStringLiteral("simple");
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VToolSpline constructor.
* @param doc dom document container.
* @param data container with variables.
* @param id object id in container.
* @param typeCreation way we create this tool.
* @param parent parent object.
*/
VToolSpline::VToolSpline(VAbstractPattern *doc, VContainer *data, quint32 id, const Source &typeCreation,
QGraphicsItem *parent)
:VAbstractSpline(doc, data, id, parent), oldPosition()
{
sceneType = SceneObject::Spline;
this->setPen(QPen(Qt::black, qApp->toPixel(WidthHairLine(*VAbstractTool::data.GetPatternUnit()))/factor));
this->setFlag(QGraphicsItem::ItemIsMovable, true);
this->setFlag(QGraphicsItem::ItemIsFocusable, true);// For keyboard input focus
this->setPath(ToolPath());
const auto spl = VAbstractTool::data.GeometricObject<VSpline>(id);
const bool freeAngle1 = qmu::QmuTokenParser::IsSingle(spl->GetStartAngleFormula());
const bool freeLength1 = qmu::QmuTokenParser::IsSingle(spl->GetC1LengthFormula());
auto *controlPoint1 = new VControlPointSpline(1, SplinePointPosition::FirstPoint, spl->GetP2(),
spl->GetP1(), *data->GetPatternUnit(), freeAngle1,
freeLength1, this);
connect(controlPoint1, &VControlPointSpline::ControlPointChangePosition, this,
&VToolSpline::ControlPointChangePosition);
connect(this, &VToolSpline::setEnabledPoint, controlPoint1, &VControlPointSpline::setEnabledPoint);
connect(controlPoint1, &VControlPointSpline::ShowContextMenu, this, &VToolSpline::contextMenuEvent);
controlPoints.append(controlPoint1);
const bool freeAngle2 = qmu::QmuTokenParser::IsSingle(spl->GetEndAngleFormula());
const bool freeLength2 = qmu::QmuTokenParser::IsSingle(spl->GetC2LengthFormula());
auto *controlPoint2 = new VControlPointSpline(1, SplinePointPosition::LastPoint, spl->GetP3(),
spl->GetP4(), *data->GetPatternUnit(), freeAngle2,
freeLength2, this);
connect(controlPoint2, &VControlPointSpline::ControlPointChangePosition, this,
&VToolSpline::ControlPointChangePosition);
connect(this, &VToolSpline::setEnabledPoint, controlPoint2, &VControlPointSpline::setEnabledPoint);
connect(controlPoint2, &VControlPointSpline::ShowContextMenu, this, &VToolSpline::contextMenuEvent);
controlPoints.append(controlPoint2);
ShowHandles(false);
ToolCreation(typeCreation);
}
//---------------------------------------------------------------------------------------------------------------------
VToolSpline::~VToolSpline()
{
//Disable cursor-arrow-openhand
RestoreOverrideCursor(cursorArrowOpenHand);
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief setDialog set dialog when user want change tool option.
*/
void VToolSpline::setDialog()
{
SCASSERT(dialog != nullptr);
DialogSpline *dialogTool = qobject_cast<DialogSpline*>(dialog);
SCASSERT(dialogTool != nullptr);
const auto spl = VAbstractTool::data.GeometricObject<VSpline>(id);
dialogTool->SetSpline(*spl);
dialogTool->SetColor(spl->GetColor());
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @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.
* @return the created tool
*/
VToolSpline* VToolSpline::Create(DialogTool *dialog, VMainGraphicsScene *scene, VAbstractPattern *doc, VContainer *data)
{
SCASSERT(dialog != nullptr);
auto dialogTool = qobject_cast<DialogSpline*>(dialog);
SCASSERT(dialogTool != nullptr);
VSpline *spline = new VSpline(dialogTool->GetSpline());
auto spl = Create(0, spline, dialogTool->GetColor(), scene, doc, data, Document::FullParse, Source::FromGui);
if (spl != nullptr)
{
spl->dialog=dialogTool;
}
return spl;
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief Create help create tool.
* @param _id tool id, 0 if tool doesn't exist yet.
* @param spline spline.
* @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.
* @return the created tool
*/
VToolSpline* VToolSpline::Create(const quint32 _id, VSpline *spline, const QString &color, VMainGraphicsScene *scene,
VAbstractPattern *doc, VContainer *data, const Document &parse,
const Source &typeCreation)
{
quint32 id = _id;
spline->SetColor(color);
if (typeCreation == Source::FromGui)
{
id = data->AddGObject(spline);
data->AddSpline(data->GeometricObject<VAbstractBezier>(id), id);
}
else
{
data->UpdateGObject(id, spline);
data->AddSpline(data->GeometricObject<VAbstractBezier>(id), id);
if (parse != Document::FullParse)
{
doc->UpdateToolData(id, data);
}
}
VDrawTool::AddRecord(id, Tool::Spline, doc);
if (parse == Document::FullParse)
{
auto _spl = new VToolSpline(doc, data, id, typeCreation);
scene->addItem(_spl);
InitSplineToolConnections(scene, _spl);
doc->AddTool(id, _spl);
doc->IncrementReferens(spline->GetP1().getIdTool());
doc->IncrementReferens(spline->GetP4().getIdTool());
return _spl;
}
return nullptr;
}
//---------------------------------------------------------------------------------------------------------------------
VToolSpline *VToolSpline::Create(const quint32 _id, quint32 point1, quint32 point4, QString &a1, QString &a2,
QString &l1, QString &l2, quint32 duplicate, const QString &color,
VMainGraphicsScene *scene, VAbstractPattern *doc, VContainer *data,
const Document &parse, const Source &typeCreation)
{
const qreal calcAngle1 = CheckFormula(_id, a1, data);
const qreal calcAngle2 = CheckFormula(_id, a2, data);
const qreal calcLength1 = qApp->toPixel(CheckFormula(_id, l1, data));
const qreal calcLength2 = qApp->toPixel(CheckFormula(_id, l2, data));
auto p1 = data->GeometricObject<VPointF>(point1);
auto p4 = data->GeometricObject<VPointF>(point4);
auto spline = new VSpline(*p1, *p4, calcAngle1, a1, calcAngle2, a2, calcLength1, l1, calcLength2, l2);
if (duplicate > 0)
{
spline->SetDuplicate(duplicate);
}
return VToolSpline::Create(_id, spline, color, scene, doc, data, parse, typeCreation);
}
//---------------------------------------------------------------------------------------------------------------------
VSpline VToolSpline::getSpline() const
{
auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
return *spline.data();
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::setSpline(const VSpline &spl)
{
QSharedPointer<VGObject> obj = VAbstractTool::data.GetGObject(id);
QSharedPointer<VSpline> spline = qSharedPointerDynamicCast<VSpline>(obj);
*spline.data() = spl;
SaveOption(obj);
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::ShowVisualization(bool show)
{
ShowToolVisualization<VisToolSpline>(show);
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief ControlPointChangePosition handle change position control point.
* @param indexSpline position spline in spline list.
* @param position position point in spline.
* @param pos new position.
*/
void VToolSpline::ControlPointChangePosition(const qint32 &indexSpline, const SplinePointPosition &position,
const QPointF &pos)
{
Q_UNUSED(indexSpline);
const QSharedPointer<VSpline> spline = VAbstractTool::data.GeometricObject<VSpline>(id);
const VSpline spl = CorrectedSpline(*spline, position, pos);
MoveSpline *moveSpl = new MoveSpline(doc, spline.data(), spl, id);
connect(moveSpl, &MoveSpline::NeedLiteParsing, doc, &VAbstractPattern::LiteParseTree);
qApp->getUndoStack()->push(moveSpl);
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::EnableToolMove(bool move)
{
this->setFlag(QGraphicsItem::ItemIsMovable, move);
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief contextMenuEvent handle context menu events.
* @param event context menu event.
*/
void VToolSpline::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
{
try
{
ContextMenu<DialogSpline>(this, event);
}
catch(const VExceptionToolWasDeleted &e)
{
Q_UNUSED(e);
return;//Leave this method immediately!!!
}
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief RemoveReferens decrement value of reference.
*/
void VToolSpline::RemoveReferens()
{
const auto spl = VAbstractTool::data.GeometricObject<VSpline>(id);
doc->DecrementReferens(spl->GetP1().getIdTool());
doc->DecrementReferens(spl->GetP4().getIdTool());
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief SaveDialog save options into file after change in dialog.
*/
void VToolSpline::SaveDialog(QDomElement &domElement)
{
SCASSERT(dialog != nullptr);
auto dialogTool = qobject_cast<DialogSpline*>(dialog);
SCASSERT(dialogTool != nullptr);
const VSpline spl = dialogTool->GetSpline();
controlPoints[0]->blockSignals(true);
controlPoints[1]->blockSignals(true);
controlPoints[0]->setPos(spl.GetP2());
controlPoints[1]->setPos(spl.GetP3());
controlPoints[0]->blockSignals(false);
controlPoints[1]->blockSignals(false);
SetSplineAttributes(domElement, spl);
doc->SetAttribute(domElement, AttrColor, dialogTool->GetColor());
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::SaveOptions(QDomElement &tag, QSharedPointer<VGObject> &obj)
{
VAbstractSpline::SaveOptions(tag, obj);
auto spl = qSharedPointerDynamicCast<VSpline>(obj);
SCASSERT(spl.isNull() == false);
SetSplineAttributes(tag, *spl);
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (flags() & QGraphicsItem::ItemIsMovable)
{
if (event->button() == Qt::LeftButton && event->type() != QEvent::GraphicsSceneMouseDoubleClick)
{
if (IsMovable())
{
SetOverrideCursor(cursorArrowCloseHand, 1, 1);
oldPosition = event->scenePos();
event->accept();
}
}
}
VAbstractSpline::mousePressEvent(event);
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
if (flags() & QGraphicsItem::ItemIsMovable)
{
if (event->button() == Qt::LeftButton && event->type() != QEvent::GraphicsSceneMouseDoubleClick)
{
if (IsMovable())
{
//Disable cursor-arrow-closehand
RestoreOverrideCursor(cursorArrowCloseHand);
}
}
}
VAbstractSpline::mouseReleaseEvent(event);
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if (IsMovable())
{
// Don't need check if left mouse button was pressed. According to the Qt documentation "If you do receive this
// event, you can be certain that this item also received a mouse press event, and that this item is the current
// mouse grabber.".
// Magic Bezier Drag Equations follow!
// "weight" describes how the influence of the drag should be distributed
// among the handles; 0 = front handle only, 1 = back handle only.
const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
const qreal t = spline->ParamT(oldPosition);
if (qFloor(t) == -1)
{
return;
}
double weight;
if (t <= 1.0 / 6.0)
{
weight = 0;
}
else if (t <= 0.5)
{
weight = (pow((6 * t - 1) / 2.0, 3)) / 2;
}
else if (t <= 5.0 / 6.0)
{
weight = (1 - pow((6 * (1-t) - 1) / 2.0, 3)) / 2 + 0.5;
}
else
{
weight = 1;
}
const QPointF delta = event->scenePos() - oldPosition;
const QPointF offset0 = ((1-weight)/(3*t*(1-t)*(1-t))) * delta;
const QPointF offset1 = (weight/(3*t*t*(1-t))) * delta;
const QPointF p2 = spline->GetP2() + offset0;
const QPointF p3 = spline->GetP3() + offset1;
oldPosition = event->scenePos(); // Now mouse here
VSpline spl = VSpline(spline->GetP1(), p2, p3, spline->GetP4());
MoveSpline *moveSpl = new MoveSpline(doc, spline.data(), spl, id);
connect(moveSpl, &MoveSpline::NeedLiteParsing, doc, &VAbstractPattern::LiteParseTree);
qApp->getUndoStack()->push(moveSpl);
// Each time we move something we call recalculation scene rect. In some cases this can cause moving
// objects positions. And this cause infinite redrawing. That's why we wait the finish of saving the last move.
static bool changeFinished = true;
if (changeFinished)
{
changeFinished = false;
const QList<QGraphicsView *> viewList = scene()->views();
if (not viewList.isEmpty())
{
if (QGraphicsView *view = viewList.at(0))
{
VMainGraphicsScene *currentScene = qobject_cast<VMainGraphicsScene *>(scene());
SCASSERT(currentScene);
const QPointF cursorPosition = currentScene->getScenePos();
view->ensureVisible(QRectF(cursorPosition.x()-5, cursorPosition.y()-5, 10, 10));
}
}
changeFinished = true;
}
}
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
if (flags() & QGraphicsItem::ItemIsMovable)
{
if (IsMovable())
{
SetOverrideCursor(cursorArrowOpenHand, 1, 1);
}
}
VAbstractSpline::hoverEnterEvent(event);
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
if (flags() & QGraphicsItem::ItemIsMovable)
{
if (IsMovable())
{
//Disable cursor-arrow-openhand
RestoreOverrideCursor(cursorArrowOpenHand);
}
}
VAbstractSpline::hoverLeaveEvent(event);
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::SetVisualization()
{
if (not vis.isNull())
{
VisToolSpline *visual = qobject_cast<VisToolSpline *>(vis);
SCASSERT(visual != nullptr);
const QSharedPointer<VSpline> spl = VAbstractTool::data.GeometricObject<VSpline>(id);
visual->setObject1Id(spl->GetP1().id());
visual->setObject4Id(spl->GetP4().id());
visual->SetAngle1(spl->GetStartAngle());
visual->SetAngle2(spl->GetEndAngle());
visual->SetKAsm1(spl->GetKasm1());
visual->SetKAsm2(spl->GetKasm2());
visual->SetKCurve(spl->GetKcurve());
visual->SetMode(Mode::Show);
visual->RefreshGeometry();
}
}
//---------------------------------------------------------------------------------------------------------------------
bool VToolSpline::IsMovable() const
{
const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
return qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula());
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief RefreshGeometry refresh item on scene.
*/
void VToolSpline::RefreshGeometry()
{
// Very important to disable control points. Without it the pogram can't move the curve.
foreach (auto *point, controlPoints)
{
point->setFlag(QGraphicsItem::ItemSendsGeometryChanges, false);
}
const auto spl = VAbstractTool::data.GeometricObject<VSpline>(id);
this->setPen(QPen(CorrectColor(spl->GetColor()),
qApp->toPixel(WidthHairLine(*VAbstractTool::data.GetPatternUnit()))/factor));
if (isHovered || detailsMode)
{
this->setPath(ToolPath(PathDirection::Show));
}
else
{
this->setPath(ToolPath());
}
controlPoints[0]->blockSignals(true);
controlPoints[1]->blockSignals(true);
{
const bool freeAngle1 = qmu::QmuTokenParser::IsSingle(spl->GetStartAngleFormula());
const bool freeLength1 = qmu::QmuTokenParser::IsSingle(spl->GetC1LengthFormula());
const QPointF splinePoint = *VAbstractTool::data.GeometricObject<VPointF>(spl->GetP1().id());
controlPoints[0]->RefreshCtrlPoint(1, SplinePointPosition::FirstPoint, spl->GetP2(), splinePoint, freeAngle1,
freeLength1);
}
{
const bool freeAngle2 = qmu::QmuTokenParser::IsSingle(spl->GetEndAngleFormula());
const bool freeLength2 = qmu::QmuTokenParser::IsSingle(spl->GetC2LengthFormula());
const QPointF splinePoint = *VAbstractTool::data.GeometricObject<VPointF>(spl->GetP4().id());
controlPoints[1]->RefreshCtrlPoint(1, SplinePointPosition::LastPoint, spl->GetP3(), splinePoint, freeAngle2,
freeLength2);
}
controlPoints[0]->blockSignals(false);
controlPoints[1]->blockSignals(false);
SetVisualization();
foreach (auto *point, controlPoints)
{
point->setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
}
}
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::SetSplineAttributes(QDomElement &domElement, const VSpline &spl)
{
SCASSERT(doc != nullptr);
doc->SetAttribute(domElement, AttrType, ToolType);
doc->SetAttribute(domElement, AttrPoint1, spl.GetP1().id());
doc->SetAttribute(domElement, AttrPoint4, spl.GetP4().id());
doc->SetAttribute(domElement, AttrAngle1, spl.GetStartAngleFormula());
doc->SetAttribute(domElement, AttrAngle2, spl.GetEndAngleFormula());
doc->SetAttribute(domElement, AttrLength1, spl.GetC1LengthFormula());
doc->SetAttribute(domElement, AttrLength2, spl.GetC2LengthFormula());
if (spl.GetDuplicate() > 0)
{
doc->SetAttribute(domElement, AttrDuplicate, spl.GetDuplicate());
}
else
{
if (domElement.hasAttribute(AttrDuplicate))
{
domElement.removeAttribute(AttrDuplicate);
}
}
if (domElement.hasAttribute(AttrKCurve))
{
domElement.removeAttribute(AttrKCurve);
}
if (domElement.hasAttribute(AttrKAsm1))
{
domElement.removeAttribute(AttrKAsm1);
}
if (domElement.hasAttribute(AttrKAsm2))
{
domElement.removeAttribute(AttrKAsm2);
}
}
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