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Block moving a spline by dragging if a formula was used.

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--HG--
branch : feature
This commit is contained in:
Roman Telezhynskyi 2016-02-26 19:44:51 +02:00
parent 773383ec70
commit 679f90d627
2 changed files with 112 additions and 64 deletions
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170
src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.cpp
View File

@ -32,6 +32,7 @@
#include "../../../undocommands/movespline.h"
#include "../../../visualization/vistoolspline.h"
#include "../vwidgets/vcontrolpointspline.h"
#include "../qmuparser/qmutokenparser.h"
#if QT_VERSION < QT_VERSION_CHECK(5, 1, 0)
# include "../vmisc/vmath.h"
@ -335,9 +336,17 @@ void VToolSpline::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (event->button() == Qt::LeftButton && event->type() != QEvent::GraphicsSceneMouseDoubleClick)
{
SetOverrideCursor(cursorArrowCloseHand, 1, 1);
oldPosition = event->scenePos();
event->accept();
const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
{
SetOverrideCursor(cursorArrowCloseHand, 1, 1);
oldPosition = event->scenePos();
event->accept();
}
}
}
VAbstractSpline::mousePressEvent(event);
@ -350,8 +359,16 @@ void VToolSpline::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
if (event->button() == Qt::LeftButton && event->type() != QEvent::GraphicsSceneMouseDoubleClick)
{
//Disable cursor-arrow-closehand
RestoreOverrideCursor(cursorArrowCloseHand);
const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
{
//Disable cursor-arrow-closehand
RestoreOverrideCursor(cursorArrowCloseHand);
}
}
}
VAbstractSpline::mouseReleaseEvent(event);
@ -360,74 +377,81 @@ void VToolSpline::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
// 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.".
const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
// 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 QSharedPointer<VSpline> spline = VAbstractTool::data.GeometricObject<VSpline>(id);
const qreal t = spline->ParamT(oldPosition);
if (qFloor(t) == -1)
if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
{
return;
}
// 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.".
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;
}
// 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 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 qreal t = spline->ParamT(oldPosition);
const QPointF p2 = spline->GetP2() + offset0;
const QPointF p3 = spline->GetP3() + offset1;
if (qFloor(t) == -1)
{
return;
}
oldPosition = event->scenePos(); // Now mouse here
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;
}
VSpline spl = VSpline(spline->GetP1(), p2, p3, spline->GetP4(), spline->GetKcurve());
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;
MoveSpline *moveSpl = new MoveSpline(doc, spline.data(), spl, id, this->scene());
connect(moveSpl, &MoveSpline::NeedLiteParsing, doc, &VAbstractPattern::LiteParseTree);
qApp->getUndoStack()->push(moveSpl);
const QPointF p2 = spline->GetP2() + offset0;
const QPointF p3 = spline->GetP3() + offset1;
// 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;
oldPosition = event->scenePos(); // Now mouse here
const QList<QGraphicsView *> viewList = scene()->views();
if (not viewList.isEmpty())
{
if (QGraphicsView *view = viewList.at(0))
VSpline spl = VSpline(spline->GetP1(), p2, p3, spline->GetP4(), spline->GetKcurve());
MoveSpline *moveSpl = new MoveSpline(doc, spline.data(), spl, id, this->scene());
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())
{
VMainGraphicsScene *currentScene = qobject_cast<VMainGraphicsScene *>(scene());
SCASSERT(currentScene);
const QPointF cursorPosition = currentScene->getScenePos();
view->ensureVisible(QRectF(cursorPosition.x()-5, cursorPosition.y()-5, 10, 10));
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;
changeFinished = true;
}
}
}
@ -436,7 +460,15 @@ void VToolSpline::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
if (flags() & QGraphicsItem::ItemIsMovable)
{
SetOverrideCursor(cursorArrowOpenHand, 1, 1);
const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
{
SetOverrideCursor(cursorArrowOpenHand, 1, 1);
}
}
VAbstractSpline::hoverEnterEvent(event);
@ -447,8 +479,16 @@ void VToolSpline::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
if (flags() & QGraphicsItem::ItemIsMovable)
{
//Disable cursor-arrow-openhand
RestoreOverrideCursor(cursorArrowOpenHand);
const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
{
//Disable cursor-arrow-openhand
RestoreOverrideCursor(cursorArrowOpenHand);
}
}
VAbstractSpline::hoverLeaveEvent(event);
@ -527,6 +567,8 @@ void VToolSpline::RefreshGeometry()
//---------------------------------------------------------------------------------------------------------------------
void VToolSpline::SetSplineAttributes(QDomElement &domElement, const VSpline &spl)
{
SCASSERT(doc != nullptr);
if (domElement.attribute(AttrType) == OldToolType)
{
doc->SetAttribute(domElement, AttrType, ToolType);

6
src/test/ValentinaTest/tst_qmutokenparser.cpp
View File

@ -52,6 +52,12 @@ void TST_QmuTokenParser::IsSingle_data()
QTest::newRow("Empty string") << "" << false;
QTest::newRow("Several spaces") << " " << false;
QTest::newRow("Invalid formula") << "2*)))" << false;
QTest::newRow("Incorrect thousand separator 15 500") << "15 500" << false;
QTest::newRow("Correct C locale 15500") << "15500" << true;
QTest::newRow("Correct C locale 15,500") << "15,500" << true;
QTest::newRow("Correct C locale 15,500.1") << "15,500.1" << true;
QTest::newRow("Not C locale 15,5") << "15,5" << false;
QTest::newRow("Not C locale 15.500,1") << "15.500,1" << false;
}
//---------------------------------------------------------------------------------------------------------------------