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Worked on grainline rotation

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--HG--
branch : feature
This commit is contained in:
BojanKverh 2016-10-12 02:45:01 +02:00
parent b564356f0a
commit fce2849208
2 changed files with 129 additions and 35 deletions
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135
src/libs/vtools/tools/vgrainlineitem.cpp
View File

@ -42,6 +42,7 @@
#define ARROW_LENGTH 15
#define RECT_WIDTH 30
#define RESIZE_RECT_SIZE 10
#define ROTATE_CIRC_R 7
#define ACTIVE_Z 10
#define INACTIVE_Z 5
@ -51,8 +52,9 @@
* @param pParent pointer to the parent item
*/
VGrainlineItem::VGrainlineItem(QGraphicsItem* pParent)
:QGraphicsObject(pParent), m_eMode(VGrainlineItem::mNormal), m_dRotation(0), m_dLength(0), m_rectBoundingBox(),
m_polyBound(), m_ptStartPos(), m_ptStartMove(), m_dScale(1), m_polyResize()
:QGraphicsObject(pParent), m_eMode(VGrainlineItem::mNormal), m_bReleased(false), m_dRotation(0), m_dLength(0),
m_rectBoundingBox(), m_polyBound(), m_ptStartPos(), m_ptStartMove(), m_dScale(1), m_polyResize(),
m_ptStart(), m_ptFinish(), m_ptCenter(), m_dAngle(0)
{
m_rectBoundingBox.setTopLeft(QPointF(0, 0));
setAcceptHoverEvents(true);
@ -85,7 +87,7 @@ void VGrainlineItem::paint(QPainter* pP, const QStyleOptionGraphicsItem* pOption
QPointF pt2;
pt2.setX(pt1.x() + m_dLength * cos(m_dRotation));
pt2.setY(pt1.y() + m_dLength * sin(m_dRotation));
pt2.setY(pt1.y() - m_dLength * sin(m_dRotation));
pP->setRenderHints(QPainter::Antialiasing);
// line
@ -97,10 +99,10 @@ void VGrainlineItem::paint(QPainter* pP, const QStyleOptionGraphicsItem* pOption
QPointF ptA;
qreal dArrLen = ARROW_LENGTH*m_dScale;
ptA.setX(pt1.x() + dArrLen*cos(m_dRotation + ARROW_ANGLE));
ptA.setY(pt1.y() + dArrLen*sin(m_dRotation + ARROW_ANGLE));
ptA.setY(pt1.y() - dArrLen*sin(m_dRotation + ARROW_ANGLE));
poly << ptA;
ptA.setX(pt1.x() + dArrLen*cos(m_dRotation - ARROW_ANGLE));
ptA.setY(pt1.y() + dArrLen*sin(m_dRotation - ARROW_ANGLE));
ptA.setY(pt1.y() - dArrLen*sin(m_dRotation - ARROW_ANGLE));
poly << ptA;
pP->setBrush(clr);
pP->drawPolygon(poly);
@ -108,10 +110,10 @@ void VGrainlineItem::paint(QPainter* pP, const QStyleOptionGraphicsItem* pOption
poly.clear();
poly << pt2;
ptA.setX(pt2.x() + dArrLen*cos(M_PI + m_dRotation + ARROW_ANGLE));
ptA.setY(pt2.y() + dArrLen*sin(M_PI + m_dRotation + ARROW_ANGLE));
ptA.setY(pt2.y() - dArrLen*sin(M_PI + m_dRotation + ARROW_ANGLE));
poly << ptA;
ptA.setX(pt2.x() + dArrLen*cos(M_PI + m_dRotation - ARROW_ANGLE));
ptA.setY(pt2.y() + dArrLen*sin(M_PI + m_dRotation - ARROW_ANGLE));
ptA.setY(pt2.y() - dArrLen*sin(M_PI + m_dRotation - ARROW_ANGLE));
poly << ptA;
pP->drawPolygon(poly);
@ -121,17 +123,30 @@ void VGrainlineItem::paint(QPainter* pP, const QStyleOptionGraphicsItem* pOption
pP->setBrush(Qt::NoBrush);
// bounding polygon
pP->drawPolygon(m_polyBound);
pP->setPen(QPen(clr, 3));
if (m_eMode != mRotate)
{
pP->setBrush(clr);
pP->drawPolygon(m_polyResize);
}
pP->setBrush(Qt::NoBrush);
if (m_eMode == mResize)
{
pP->setPen(clr);
pP->drawLine(m_polyBound.at(0), m_polyBound.at(2));
pP->drawLine(m_polyBound.at(1), m_polyBound.at(3));
}
if (m_eMode == mRotate)
{
QPointF ptC = (m_polyBound.at(0) + m_polyBound.at(2))/2;
qreal dRad = m_dScale * ROTATE_CIRC_R;
pP->setBrush(clr);
pP->drawEllipse(ptC, dRad, dRad);
}
}
pP->restore();
}
@ -151,7 +166,7 @@ void VGrainlineItem::UpdateGeometry(const QPointF& ptPos, qreal dRotation, qreal
qreal dX;
qreal dY;
QPointF pt = ptPos;
if (IsContained(pt, dX, dY) == false)
if (IsContained(pt, m_dRotation, dX, dY) == false)
{
pt.setX(pt.x() + dX);
pt.setY(pt.y() + dY);
@ -177,6 +192,7 @@ QRectF VGrainlineItem::boundingRect() const
*/
void VGrainlineItem::Reset()
{
m_bReleased = false;
m_eMode = mNormal;
setZValue(INACTIVE_Z);
UpdateBox();
@ -197,19 +213,20 @@ bool VGrainlineItem::IsIdle() const
* @brief VGrainlineItem::IsContained checks, if both ends of the grainline, starting at pt, are contained in
* parent widget.
* @param pt starting point of the grainline.
* @param dRot rotation of the grainline in [rad]
* @param dX horizontal translation needed to put the arrow inside parent item
* @param dY vertical translation needed to put the arrow inside parent item
* @return true, if both ends of the grainline, starting at pt, are contained in the parent widget and
* false otherwise.
*/
bool VGrainlineItem::IsContained(const QPointF& pt, qreal &dX, qreal &dY) const
bool VGrainlineItem::IsContained(const QPointF& pt, qreal dRot, qreal &dX, qreal &dY) const
{
dX = 0;
dY = 0;
QPointF apt[2];
apt[0] = pt;
apt[1].setX(pt.x() + m_dLength * cos(m_dRotation));
apt[1].setY(pt.y() + m_dLength * sin(m_dRotation));
apt[1].setX(pt.x() + m_dLength * cos(dRot));
apt[1].setY(pt.y() - m_dLength * sin(dRot));
// single point differences
qreal dPtX;
qreal dPtY;
@ -278,7 +295,10 @@ void VGrainlineItem::mousePressEvent(QGraphicsSceneMouseEvent* pME)
m_ptStartPos = pos();
m_ptStartMove = pME->scenePos();
m_dStartLength = m_dLength;
m_dAngle = GetAngle(mapToParent(pME->pos()));
if (m_eMode != mRotate)
{
if (m_polyResize.containsPoint(pME->pos(), Qt::OddEvenFill) == true)
{
m_eMode = mResize;
@ -290,8 +310,13 @@ void VGrainlineItem::mousePressEvent(QGraphicsSceneMouseEvent* pME)
SetOverrideCursor(cursorArrowCloseHand, 1, 1);
}
}
else
{
SetOverrideCursor(cursorArrowCloseHand, 1, 1);
}
setZValue(ACTIVE_Z);
UpdateBox();
}
}
//---------------------------------------------------------------------------------------------------------------------
@ -302,12 +327,12 @@ void VGrainlineItem::mousePressEvent(QGraphicsSceneMouseEvent* pME)
void VGrainlineItem::mouseMoveEvent(QGraphicsSceneMouseEvent* pME)
{
QPointF ptDiff = pME->scenePos() - m_ptStartMove;
qreal dX;
qreal dY;
if (m_eMode == mMove)
{
QPointF pt = m_ptStartPos + ptDiff;
qreal dX;
qreal dY;
if (IsContained(pt, dX, dY) == false)
if (IsContained(pt, m_dRotation, dX, dY) == false)
{
pt.setX(pt.x() + dX);
pt.setY(pt.y() + dY);
@ -325,13 +350,29 @@ void VGrainlineItem::mouseMoveEvent(QGraphicsSceneMouseEvent* pME)
m_dLength = m_dStartLength + dLen;
qreal dX;
qreal dY;
if (IsContained(m_ptStartPos, dX, dY) == false)
if (IsContained(m_ptStartPos, m_dRotation, dX, dY) == false)
{
m_dLength = dPrevLen;
}
UpdateRectangle();
UpdateBox();
}
else if (m_eMode == mRotate)
{
if (fabs(m_dAngle) < 0.01)
{
m_dAngle = GetAngle(mapToParent(pME->pos()));
return;
}
qreal dAng = GetAngle(mapToParent(pME->pos())) - m_dAngle;
if (IsContained(m_ptStartPos, m_dRotation + dAng, dX, dY) == true)
{
m_dRotation += dAng;
UpdateRectangle();
UpdateBox();
}
}
}
//---------------------------------------------------------------------------------------------------------------------
@ -344,7 +385,7 @@ void VGrainlineItem::mouseReleaseEvent(QGraphicsSceneMouseEvent* pME)
{
if (pME->button() == Qt::LeftButton)
{
if (m_eMode == mMove)
if (m_eMode == mMove || m_eMode == mRotate)
{
RestoreOverrideCursor(cursorArrowCloseHand);
}
@ -360,7 +401,11 @@ void VGrainlineItem::mouseReleaseEvent(QGraphicsSceneMouseEvent* pME)
{
if (bShort == true)
{
// TODO: switch to rotate mode
if (m_bReleased == true)
{
m_eMode = mRotate;
UpdateBox();
}
}
else
{
@ -375,6 +420,19 @@ void VGrainlineItem::mouseReleaseEvent(QGraphicsSceneMouseEvent* pME)
UpdateBox();
}
}
else
{
if (bShort == true)
{
m_eMode = mMove;
}
else
{
emit SignalRotated(m_dRotation);
}
UpdateBox();
}
m_bReleased = true;
}
}
@ -399,20 +457,24 @@ void VGrainlineItem::UpdateRectangle()
QPointF pt2;
pt2.setX(pt1.x() + m_dLength * cos(m_dRotation));
pt2.setY(pt1.y() + m_dLength * sin(m_dRotation));
pt2.setY(pt1.y() - m_dLength * sin(m_dRotation));
m_ptStart = mapToParent(pt1);
m_ptFinish = mapToParent(pt2);
m_ptCenter = (m_ptStart + m_ptFinish)/2;
QPointF ptA;
ptA.setX(pt1.x() + RECT_WIDTH*cos(m_dRotation + M_PI/2));
ptA.setY(pt1.y() + RECT_WIDTH*sin(m_dRotation + M_PI/2));
ptA.setY(pt1.y() - RECT_WIDTH*sin(m_dRotation + M_PI/2));
m_polyBound << ptA;
ptA.setX(pt1.x() + RECT_WIDTH*cos(m_dRotation - M_PI/2));
ptA.setY(pt1.y() + RECT_WIDTH*sin(m_dRotation - M_PI/2));
ptA.setY(pt1.y() - RECT_WIDTH*sin(m_dRotation - M_PI/2));
m_polyBound << ptA;
ptA.setX(pt2.x() + RECT_WIDTH*cos(m_dRotation - M_PI/2));
ptA.setY(pt2.y() + RECT_WIDTH*sin(m_dRotation - M_PI/2));
ptA.setY(pt2.y() - RECT_WIDTH*sin(m_dRotation - M_PI/2));
m_polyBound << ptA;
ptA.setX(pt2.x() + RECT_WIDTH*cos(m_dRotation + M_PI/2));
ptA.setY(pt2.y() + RECT_WIDTH*sin(m_dRotation + M_PI/2));
ptA.setY(pt2.y() - RECT_WIDTH*sin(m_dRotation + M_PI/2));
m_polyBound << ptA;
m_rectBoundingBox = m_polyBound.boundingRect();
setTransformOriginPoint(m_rectBoundingBox.center());
@ -423,16 +485,39 @@ void VGrainlineItem::UpdateRectangle()
double dSize = m_dScale * RESIZE_RECT_SIZE;
ptA.setX(ptA.x() + dSize*cos(m_dRotation + M_PI/2));
ptA.setY(ptA.y() + dSize*sin(m_dRotation + M_PI/2));
ptA.setY(ptA.y() - dSize*sin(m_dRotation + M_PI/2));
m_polyResize << ptA;
ptA.setX(ptA.x() - dSize*cos(m_dRotation));
ptA.setY(ptA.y() - dSize*sin(m_dRotation));
ptA.setY(ptA.y() + dSize*sin(m_dRotation));
m_polyResize << ptA;
ptA.setX(ptA.x() + dSize*cos(m_dRotation - M_PI/2));
ptA.setY(ptA.y() + dSize*sin(m_dRotation - M_PI/2));
ptA.setY(ptA.y() - dSize*sin(m_dRotation - M_PI/2));
m_polyResize << ptA;
prepareGeometryChange();
}
//---------------------------------------------------------------------------------------------------------------------
/**
* @brief VGrainlineItem::GetAngle calculates the angle between the line, which goes from
* rotation center to pt and x axis
* @param pt point of interest
* @return the angle between line from rotation center and point of interest and x axis
*/
double VGrainlineItem::GetAngle(QPointF pt) const
{
double dX = pt.x() - m_ptCenter.x();
double dY = pt.y() - m_ptCenter.y();
if (fabs(dX) < 1 && fabs(dY) < 1)
{
return 0;
}
else
{
return qAtan2(dY, dX);
}
}

13
src/libs/vtools/tools/vgrainlineitem.h
View File

@ -45,7 +45,8 @@ class VGrainlineItem : public QGraphicsObject
enum Mode {
mNormal,
mMove,
mResize
mResize,
mRotate
};
public:
@ -58,7 +59,7 @@ public:
QRectF boundingRect() const;
void Reset();
bool IsIdle() const;
bool IsContained(const QPointF &pt, qreal &dX, qreal &dY) const;
bool IsContained(const QPointF &pt, qreal dRot, qreal &dX, qreal &dY) const;
void SetScale(qreal dScale);
protected:
@ -68,12 +69,16 @@ protected:
void UpdateBox();
void UpdateRectangle();
qreal GetAngle(QPointF pt) const;
signals:
void SignalMoved(const QPointF& ptPos);
void SignalResized(qreal dLength);
void SignalRotated(qreal dRot);
private:
Mode m_eMode;
bool m_bReleased;
qreal m_dRotation;
qreal m_dLength;
QRectF m_rectBoundingBox;
@ -83,6 +88,10 @@ private:
qreal m_dScale;
QPolygonF m_polyResize;
qreal m_dStartLength;
QPointF m_ptStart;
QPointF m_ptFinish;
QPointF m_ptCenter;
qreal m_dAngle;
};
#endif // VGRAINLINEITEM_H