/*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBGraphicsAristo.h"
#include "board/UBBoardController.h"
#include "board/UBDrawingController.h"
#include "core/UBApplication.h"
#include "domain/UBGraphicsScene.h"
#include <QColor>
#include <QFont>
#include <QFontMetricsF>
#include <QGraphicsItem>
#include <QLineF>
#include <QPolygonF>
#include <QRadialGradient>
#include <QString>
#include "core/memcheck.h"
const QRectF UBGraphicsAristo::sDefaultRect = QRectF(0, 0, 800, 500);
const UBGraphicsAristo::Orientation UBGraphicsAristo::sDefaultOrientation = UBGraphicsAristo::Bottom;
UBGraphicsAristo::UBGraphicsAristo()
: UBAbstractDrawRuler()
, QGraphicsPathItem()
, mMarking(false)
, mResizing(false)
, mRotating(false)
, mOrientation(Undefined)
, mRotatedAngle(0)
, mMarkerAngle(0)
, mStartAngle(0)
, mSpan(180)
, mHFlipSvgItem(0)
, mMarkerSvgItem(0)
, mResizeSvgItem(0)
, mRotateSvgItem(0)
{
mHFlipSvgItem = new QGraphicsSvgItem(":/images/vflipTool.svg", this);
mHFlipSvgItem->setVisible(false);
mHFlipSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
mResizeSvgItem = new QGraphicsSvgItem(":/images/resizeTool.svg", this);
mResizeSvgItem->setVisible(false);
mResizeSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
mRotateSvgItem = new QGraphicsSvgItem(":/images/rotateTool.svg", this);
mRotateSvgItem->setVisible(false);
mRotateSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
mMarkerSvgItem = new QGraphicsSvgItem(":/images/angleMarker.svg", this);
mMarkerSvgItem->setVisible(false);
mMarkerSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool));
mMarkerSvgItem->setVisible(true);
create(*this);
setBoundingRect(sDefaultRect);
setOrientation(sDefaultOrientation);
}
UBGraphicsAristo::~UBGraphicsAristo()
{
/* NOOP */
}
/*
* setOrientation() modify the tool orientation.
* makeGeometryChange() is called so points are recomputed, control items are positionnated and shape is determined according to this modification.
*/
void UBGraphicsAristo::setOrientation(Orientation orientation)
{
mOrientation = orientation;
makeGeometryChange();
}
/* calculatePoints() is used to calculate polygon's apexes coordinates.
* This function handles orientation changes too.
*/
void UBGraphicsAristo::calculatePoints()
{
switch (mOrientation) {
case Bottom:
C.setX(boundingRect().center().x());
C.setY(boundingRect().bottom());
A.setX(boundingRect().left());
A.setY(boundingRect().bottom() - boundingRect().width() / 2);
B.setX(boundingRect().right());
B.setY(boundingRect().bottom() - boundingRect().width() / 2);
break;
case Top:
C.setX(boundingRect().center().x());
C.setY(boundingRect().top());
A.setX(boundingRect().left());
A.setY(boundingRect().top() + boundingRect().width() / 2);
B.setX(boundingRect().right());
B.setY(boundingRect().top() + boundingRect().width() / 2);
break;
default:
break;
}
}
/*
* setItemsPos() places control items according to A, B and C positions.
* Call this function after A, B or C position modification, mostly after calling calculatePoints().
* These positions has to be set when calling setPath() to allow hover events on items which are not into the main polygon.
*/
void UBGraphicsAristo::setItemsPos()
{
mCloseSvgItem->setPos(closeButtonRect().topLeft() + rotationCenter());
mHFlipSvgItem->setPos(hFlipRect().topLeft() + rotationCenter());
mRotateSvgItem->setPos(rotateRect().topLeft() + rotationCenter());
mResizeSvgItem->setPos(resizeButtonRect().topLeft() + rotationCenter());
mMarkerSvgItem->setPos(markerButtonRect().topLeft() + rotationCenter());
}
/*
* determinePath() modify the shape according to apexes coordinates and control item positions.
* This is useful when orientation is modified.
* Returns the painter path corresponding to object parameters.
*/
QPainterPath UBGraphicsAristo::determinePath()
{
QPainterPath path;
QPolygonF polygon;
polygon << A << B << C;
path.addPolygon(polygon);
path.addPath(mResizeSvgItem->shape().translated(mResizeSvgItem->pos()));
path.addPath(mMarkerSvgItem->shape().translated(mMarkerSvgItem->pos()));
return path;
}
/*
* setBoundingRect() is a helper to set the given rectangle as the new shape to limit apexes coordinates.
* This is useful when instanciating or resizing the object.
* makeGeometryChange() is called so points are recomputed, control items are positionnated and shape is determined according to this modification.
* Setting bounds' width less than 300 is not allowed.
*/
void UBGraphicsAristo::setBoundingRect(QRectF boundingRect)
{
if (boundingRect.width() < 300)
return;
QPainterPath path;
path.addRect(boundingRect);
setPath(path);
if (mOrientation != Undefined)
makeGeometryChange();
}
void UBGraphicsAristo::makeGeometryChange()
{
calculatePoints();
setItemsPos();
setPath(determinePath());
}
UBItem* UBGraphicsAristo::deepCopy(void) const
{
UBGraphicsAristo* copy = new UBGraphicsAristo();
copyItemParameters(copy);
return copy;
}
void UBGraphicsAristo::copyItemParameters(UBItem *copy) const
{
UBGraphicsAristo* cp = dynamic_cast<UBGraphicsAristo*>(copy);
if (cp)
{
/* TODO: copy all members */
cp->setPos(this->pos());
cp->setTransform(this->transform());
cp->setBoundingRect(boundingRect());
cp->setOrientation(mOrientation);
cp->mRotatedAngle = mRotatedAngle;
cp->mMarkerAngle = mMarkerAngle;
}
}
void UBGraphicsAristo::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
{
QPolygonF polygon;
painter->setBrush(fillBrush());
painter->setPen(drawColor());
polygon << A << B << C;
painter->drawPolygon(polygon);
polygon.clear();
paintGraduations(painter);
paintMarker(painter);
}
QBrush UBGraphicsAristo::fillBrush() const
{
QColor fillColor = edgeFillColor();// scene()->isDarkBackground() ? sDarkBackgroundFillColor : sFillColor;
QColor fillColorCenter = middleFillColor();//scene()->isDarkBackground() ? sDarkBackgroundFillColorCenter : sFillColorCenter;
QColor transparentWhite = Qt::white;
transparentWhite.setAlpha(scene()->isDarkBackground() ? sDrawTransparency : sFillTransparency);
QRadialGradient radialGradient(boundingRect().center(), radius(), boundingRect().center());
radialGradient.setColorAt(0, fillColorCenter);
radialGradient.setColorAt(1, fillColor);
return radialGradient;
}
/* paintGraduations() paints graduations on the ruler side (length graduations) and the two other sides (angle graduation) */
void UBGraphicsAristo::paintGraduations(QPainter *painter)
{
paintRulerGraduations(painter);
paintProtractorGraduations(painter);
}
void UBGraphicsAristo::paintRulerGraduations(QPainter *painter)
{
/* defining useful constants */
const int centimeterGraduationHeight = 15;
const int halfCentimeterGraduationHeight = 10;
const int millimeterGraduationHeight = 5;
const int millimetersPerCentimeter = 10;
const int millimetersPerHalfCentimeter = 5;
painter->save();
painter->setFont(font());
QFontMetricsF fontMetrics(painter->font());
/* Browsing milliters in half width of ruler side */
for (int millimeters = 0; millimeters < (boundingRect().width() / 2 - sLeftEdgeMargin - sRoundingRadius) / sPixelsPerMillimeter; millimeters++)
{
/* defining graduationHeight ; values are different to draw bigger lines if millimiter considered is a centimeter or a half centimeter */
int graduationHeight = (0 == millimeters % millimetersPerCentimeter) ?
centimeterGraduationHeight :
((0 == millimeters % millimetersPerHalfCentimeter) ?
halfCentimeterGraduationHeight : millimeterGraduationHeight);
/* correcting graduationHeight: draw the line in the other direction in case ruler is top-oriented, to stay inside the tool and inside the rect */
graduationHeight = mOrientation == Bottom ? graduationHeight : - graduationHeight;
/* drawing graduation to the left and to the right of origin, which is the center of graduated side */
painter->drawLine(QLine(rotationCenter().x() + sPixelsPerMillimeter * millimeters, rotationCenter().y(), rotationCenter().x() + sPixelsPerMillimeter * millimeters, rotationCenter().y() + graduationHeight));
if (millimeters != 0)
painter->drawLine(QLine(rotationCenter().x() - sPixelsPerMillimeter * millimeters, rotationCenter().y(), rotationCenter().x() - sPixelsPerMillimeter * millimeters, rotationCenter().y() + graduationHeight));
/* drawing associated value if considered graduation is a centimeter */
if (0 == millimeters % millimetersPerCentimeter)
{
/* defining graduation value */
QString text = QString("%1").arg((int)(millimeters / millimetersPerCentimeter));
/* staying inside polygon */
if (rotationCenter().x() + sPixelsPerMillimeter * millimeters + fontMetrics.width(text) / 2 < boundingRect().right())
{
qreal textWidth = fontMetrics.width(text);
qreal textHeight = fontMetrics.tightBoundingRect(text).height() + 5;
/* text y-coordinate is different according to tool's orientation */
qreal textY = mOrientation == Bottom ? A.y() + 5 + centimeterGraduationHeight : A.y() - 5 - centimeterGraduationHeight + graduationHeight;
/* if text's rect is not out of polygon's bounds, drawing value below or above graduation */
QPointF intersectionPoint;
bool paint = false;
if (mOrientation == Bottom && QLineF(QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters - textWidth / 2, rotationCenter().y()), QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters - textWidth / 2, textY + textHeight)).intersect(QLineF(A, C), &intersectionPoint) != QLineF::BoundedIntersection && QLineF(QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters + textWidth / 2, rotationCenter().y()), QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters + textWidth / 2, textY + textHeight)).intersect(QLineF(A, C), &intersectionPoint) != QLineF::BoundedIntersection) {
paint = true;
}
else if (mOrientation == Top && QLineF(QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters - textWidth / 2, rotationCenter().y()), QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters - textWidth / 2, textY - textHeight)).intersect(QLineF(A, C), &intersectionPoint) != QLineF::BoundedIntersection && QLineF(QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters + textWidth / 2, rotationCenter().y()), QPointF(rotationCenter().x() - sPixelsPerMillimeter * millimeters + textWidth / 2, textY - textHeight)).intersect(QLineF(A, C), &intersectionPoint) != QLineF::BoundedIntersection) {
paint = true;
}
if (paint) {
painter->drawText(
QRectF(rotationCenter().x() + sPixelsPerMillimeter * millimeters - textWidth / 2, textY, textWidth, textHeight),
Qt::AlignVCenter, text);
if (millimeters != 0)
painter->drawText(
QRectF(rotationCenter().x() - sPixelsPerMillimeter * millimeters - textWidth / 2, textY, textWidth, textHeight),
Qt::AlignVCenter, text);
}
}
}
}
painter->restore();
}
void UBGraphicsAristo::paintProtractorGraduations(QPainter* painter)
{
/* defining useful constants */
const int tenDegreeGraduationLength = 15;
const int fiveDegreeGraduationLength = 10;
const int oneDegreeGraduationLength = 5;
painter->save();
QFont font1 = painter->font();
#ifdef Q_WS_MAC
font1.setPointSizeF(font1.pointSizeF() - 3);
#endif
QFontMetricsF fm1(font1);
//Font for internal arc
QFont font2 = painter->font();
font2.setPointSizeF(font1.pointSizeF()/1.5);
QFontMetricsF fm2(font2);
/* defining virtual arc diameter */
qreal rad = radius();
QPointF center = rotationCenter();
/* browsing angles */
for (int angle = 1; angle < mSpan; angle++)
{
int graduationLength = (0 == angle % 10) ? tenDegreeGraduationLength : ((0 == angle % 5) ? fiveDegreeGraduationLength : oneDegreeGraduationLength);
qreal co = cos(((qreal)angle + mStartAngle) * PI/180);
qreal si = sin(((qreal)angle + mStartAngle) * PI/180);
/* inverse sinus according to the orientation, to draw graduations on the polygon */
si = mOrientation == Bottom ? -si : si;
/* drawing the graduation around the virtual arc */
if (angle >= sArcAngleMargin && angle <= mSpan - sArcAngleMargin)
painter->drawLine(QLineF(QPointF(center.x()+ rad/2*co, center.y() - rad/2*si),
QPointF(center.x()+ (rad/2 + graduationLength)*co,
center.y() - (rad/2 + graduationLength)*si)));
QPointF intersectionPoint;
QLineF referenceLine;
if (angle < 90)
referenceLine.setP1(B);
else
referenceLine.setP1(A);
referenceLine.setP2(C);
/* if angle is 10-multiple, drawing it's value, rotated to be easily red */
if (0 == angle % 10) {
QString grad = QString("%1").arg((int)(angle));
QString grad2 = QString("%1").arg((int)mSpan - angle);
painter->setFont(font2);
painter->save();
painter->translate(center.x() + (rad/2 + graduationLength*1.5)*co, center.y() - (rad/2 + graduationLength*1.5)*si);
int degrees = mOrientation == Bottom ? angle : -angle;
painter->rotate(-90 + degrees);
painter->drawText(- fm2.width(grad)/2, - fm2.height()/2, fm2.width(grad), fm2.height(), Qt::AlignCenter, grad);
painter->restore();
painter->setFont(font1);
/* drawing the graduation near tool's side */
if (QLineF(QPointF(center.x()+ rad/2*co, center.y() - rad/2*si),
QPointF(center.x()+ (rad/2 + graduationLength)*co,
center.y() - (rad/2 + graduationLength)*si)).intersect(referenceLine, &intersectionPoint) == QLineF::UnboundedIntersection)
painter->drawLine(QLineF(QPointF(center.x() + (rad/2 + graduationLength*1.5 + fm2.width(grad)/2)*co,
center.y() - (rad/2 + graduationLength*1.5 + fm2.height()/2)*si),
intersectionPoint));
}
/* drawing the graduation near tool's side */
else
if (QLineF(QPointF(center.x()+ rad/2*co, center.y() - rad/2*si),
QPointF(center.x()+ (rad/2 + graduationLength)*co,
center.y() - (rad/2 + graduationLength)*si)).intersect(referenceLine, &intersectionPoint) == QLineF::UnboundedIntersection)
painter->drawLine(QLineF(QPointF(intersectionPoint.x() - (graduationLength*1.5)*co,
intersectionPoint.y() + (graduationLength*1.5)*si),
intersectionPoint));
}
painter->restore();
}
/* paintMarker() adjust marker button according to the current angle, draw the line allowing user to set precisely the angle, and draw the current angle's value. */
void UBGraphicsAristo::paintMarker(QPainter *painter)
{
/* adjusting marker button */
mMarkerSvgItem->resetTransform();
mMarkerSvgItem->translate(-markerButtonRect().left(), -markerButtonRect().top());
mMarkerSvgItem->rotate(mMarkerAngle);
mMarkerSvgItem->translate(markerButtonRect().left(), markerButtonRect().top());
qreal co = cos((mMarkerAngle) * PI/180);
qreal si = sin((mMarkerAngle) * PI/180);
/* Setting point composing the line (from point C) which intersects the line we want to draw. */
QPointF referencePoint;
if (mOrientation == Bottom) {
if ((int)mMarkerAngle % 360 < 90)
referencePoint = B;
else
referencePoint = A;
}
else if (mOrientation == Top) {
if ((int)mMarkerAngle % 360 < 270 && (int)mMarkerAngle % 360 > 0)
referencePoint = A;
else
referencePoint = B;
}
/* getting intersection point to draw the wanted line */
QLineF intersectedLine(rotationCenter(), QPointF(rotationCenter().x()+co, rotationCenter().y()+si));
QPointF intersectionPoint;
if (intersectedLine.intersect(QLineF(referencePoint, C), &intersectionPoint))
painter->drawLine(QLineF(intersectionPoint, rotationCenter()));
/* drawing angle value */
qreal rightAngle = mOrientation == Bottom ? mMarkerAngle : 360 - mMarkerAngle;
QString angleText = QString("%1°").arg(rightAngle, 0, 'f', 1);
QFont font1 = painter->font();
#ifdef Q_WS_MAC
font1.setPointSizeF(font1.pointSizeF() - 3);
#endif
QFontMetricsF fm1(font1);
if (mOrientation == Bottom)
painter->drawText(rotationCenter().x() - fm1.width(angleText)/2 - radius()/8, rotationCenter().y() + radius()/8 - fm1.height()/2, fm1.width(angleText), fm1.height(), Qt::AlignCenter, angleText);
else
painter->drawText(rotationCenter().x() - fm1.width(angleText)/2 - radius()/8, rotationCenter().y() - radius()/8 - fm1.height()/2, fm1.width(angleText), fm1.height(), Qt::AlignCenter, angleText);
}
void UBGraphicsAristo::rotateAroundCenter(qreal angle)
{
qreal oldAngle = mRotatedAngle;
mRotatedAngle = angle;
QTransform transform;
rotateAroundCenter(transform, rotationCenter());
setTransform(transform, true);
mRotatedAngle = oldAngle + angle; // We have to store absolute value for FLIP case
}
void UBGraphicsAristo::rotateAroundCenter(QTransform& transform, QPointF center)
{
transform.translate(center.x(), center.y());
transform.rotate(mRotatedAngle);
transform.translate(- center.x(), - center.y());
}
void UBGraphicsAristo::resize(qreal factor)
{
prepareGeometryChange();
translate(rotationCenter().x(), rotationCenter().y());
scale(factor, factor);
translate(-rotationCenter().x(), -rotationCenter().y());
}
QPointF UBGraphicsAristo::rotationCenter() const
{
return QPointF((A.x() + B.x()) / 2, (A.y() + B.y()) / 2);
}
QRectF UBGraphicsAristo::closeButtonRect() const
{
qreal y = radius() / 4 + hFlipRect().height() + 3 + rotateRect().height() + 3;
if (mOrientation == Top)
y = -y;
return QRectF(- mCloseSvgItem->boundingRect().width() / 2, y, mCloseSvgItem->boundingRect().width(), mCloseSvgItem->boundingRect().height());
}
QRectF UBGraphicsAristo::hFlipRect() const
{
qreal y = radius() / 4;
if (mOrientation == Top)
y = -y;
return QRectF(- mHFlipSvgItem->boundingRect().width() / 2, y, mHFlipSvgItem->boundingRect().width(), mHFlipSvgItem->boundingRect().height());
}
QRectF UBGraphicsAristo::markerButtonRect() const
{
return QRectF (radius()/2 - mMarkerSvgItem->boundingRect().width(), - mMarkerSvgItem->boundingRect().height()/2, mMarkerSvgItem->boundingRect().width(), mMarkerSvgItem->boundingRect().height());
}
QRectF UBGraphicsAristo::resizeButtonRect() const
{
return QRectF((B - rotationCenter()).x() - 100 - mResizeSvgItem->boundingRect().width()/2, - mResizeSvgItem->boundingRect().height()/2, mResizeSvgItem->boundingRect().width(), mResizeSvgItem->boundingRect().height());
}
QRectF UBGraphicsAristo::rotateRect() const
{
qreal y = radius() / 4 + hFlipRect().height() + 3;
if (mOrientation == Top)
y = -y;
return QRectF(- mRotateSvgItem->boundingRect().width() / 2, y, mRotateSvgItem->boundingRect().width(), mRotateSvgItem->boundingRect().height());
}
QCursor UBGraphicsAristo::flipCursor() const
{
return Qt::ArrowCursor;
}
QCursor UBGraphicsAristo::markerCursor() const
{
return Qt::ArrowCursor;
}
QCursor UBGraphicsAristo::resizeCursor() const
{
return Qt::ArrowCursor;
}
void UBGraphicsAristo::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
switch (toolFromPos(event->pos())) {
case Rotate:
mRotating = true;
event->accept();
break;
case Resize:
mResizing = true;
event->accept();
break;
case MoveMarker:
mMarking = true;
event->accept();
break;
default:
QGraphicsItem::mousePressEvent(event);
break;
}
mShowButtons = false;
mHFlipSvgItem->setVisible(false);
mCloseSvgItem->setVisible(false);
mRotateSvgItem->setVisible(mRotating);
mResizeSvgItem->setVisible(mResizing);
update();
}
void UBGraphicsAristo::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if (!mResizing && !mRotating && !mMarking)
{
QGraphicsItem::mouseMoveEvent(event);
}
else
{
QLineF currentLine(rotationCenter(), event->pos());
QLineF lastLine(rotationCenter(), event->lastPos());
if (mRotating) {
rotateAroundCenter(currentLine.angleTo(lastLine));
}
else if (mResizing) {
QPointF delta = event->pos() - event->lastPos();
setBoundingRect(QRectF(boundingRect().topLeft(), QSizeF(boundingRect().width() + delta.x(), boundingRect().height() + delta.x())));
}
else if(mMarking) {
qreal angle = currentLine.angleTo(lastLine);
mMarkerAngle += angle;
mMarkerAngle -= (int)(mMarkerAngle/360)*360;
if (mOrientation == Bottom) {
if (mMarkerAngle >= 270)
mMarkerAngle = 0;
else if (mMarkerAngle > 180)
mMarkerAngle = 180;
}
else if (mOrientation == Top) {
if (mMarkerAngle < 90)
mMarkerAngle = 360;
else if (mMarkerAngle < 180)
mMarkerAngle = 180;
}
update();
}
event->accept();
}
}
void UBGraphicsAristo::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
if (mResizing || mRotating || mMarking)
{
mResizing = false;
mRotating = false;
mMarking = false;
event->accept();
}
else
{
switch (toolFromPos(event->pos())) {
case Close :
hide();
emit hidden();
break;
case HorizontalFlip:
/* substracting difference to zero [2pi] twice, to obtain the desired angle */
mMarkerAngle -= 2 * (mMarkerAngle - (int)(mMarkerAngle/360)*360) - 360;
/* setting new orientation */
switch(mOrientation) {
case Bottom:
setOrientation(Top);
break;
case Top:
setOrientation(Bottom);
break;
default:
break;
}
default:
QGraphicsItem::mouseReleaseEvent(event);
break;
}
}
mShowButtons = true;
update();
if (scene())
scene()->setModified(true);
}
void UBGraphicsAristo::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
UBStylusTool::Enum currentTool = (UBStylusTool::Enum)UBDrawingController::drawingController ()->stylusTool ();
if (currentTool == UBStylusTool::Selector) {
mShowButtons = true;
mHFlipSvgItem->setVisible(true);
mRotateSvgItem->setVisible(true);
mResizeSvgItem->setVisible(true);
mCloseSvgItem->setVisible(true);
switch (toolFromPos(event->pos())) {
case HorizontalFlip:
setCursor(flipCursor());
break;
case Rotate:
setCursor(rotateCursor());
break;
case Resize:
setCursor(resizeCursor());
break;
case MoveMarker:
setCursor(markerCursor());
break;
case Close:
setCursor(closeCursor());
break;
default:
setCursor(moveCursor());
break;
}
event->accept();
update();
} else if (UBDrawingController::drawingController()->isDrawingTool()) {
setCursor(drawRulerLineCursor());
UBDrawingController::drawingController()->mActiveRuler = this;
event->accept();
}
}
void UBGraphicsAristo::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
mShowButtons = false;
setCursor(Qt::ArrowCursor);
mHFlipSvgItem->setVisible(false);
mRotateSvgItem->setVisible(false);
mResizeSvgItem->setVisible(false);
mCloseSvgItem->setVisible(false);
UBDrawingController::drawingController()->mActiveRuler = NULL;
event->accept();
update();
}
void UBGraphicsAristo::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
{
UBStylusTool::Enum currentTool = (UBStylusTool::Enum)UBDrawingController::drawingController ()->stylusTool ();
if (currentTool == UBStylusTool::Selector)
{
mShowButtons = true;
mHFlipSvgItem->setVisible(true);
mRotateSvgItem->setVisible(true);
mResizeSvgItem->setVisible(true);
mCloseSvgItem->setVisible(true);
switch (toolFromPos(event->pos())) {
case HorizontalFlip:
setCursor(flipCursor());
break;
case Rotate:
setCursor(rotateCursor());
break;
case Resize:
setCursor(resizeCursor());
break;
case MoveMarker:
setCursor(markerCursor());
break;
case Close:
setCursor(closeCursor());
break;
default:
setCursor(moveCursor());
break;
}
event->accept();
}
else if (UBDrawingController::drawingController()->isDrawingTool())
event->accept();
}
/*
* toolfromPos() returns the item type corresponding to the given position.
* This method is used to reduce the amount of code in each event function and improve class' maintainability.
* pos: event's position ; a rotation is done to counter elements rotation, like the marker button.
*/
UBGraphicsAristo::Tool UBGraphicsAristo::toolFromPos(QPointF pos)
{
pos = pos - rotationCenter();
qreal rotationAngle = mOrientation == Bottom ? - mMarkerAngle : Top ? 360 * (int)(mMarkerAngle / 360 + 1) - mMarkerAngle : 0;
QTransform t;
t.rotate(rotationAngle);
QPointF p2 = t.map(pos);
if (resizeButtonRect().contains(pos))
return Resize;
else if (closeButtonRect().contains(pos))
return Close;
else if (rotateRect().contains(pos))
return Rotate;
else if (markerButtonRect().contains(p2))
return MoveMarker;
else if (hFlipRect().contains(pos))
return HorizontalFlip;
else if (shape().contains(pos))
return Move;
else
return None;
}
void UBGraphicsAristo::StartLine(const QPointF &scenePos, qreal width)
{
QPointF itemPos = mapFromScene(scenePos);
qreal y;
y = rotationCenter().y();
if (itemPos.x() < boundingRect().x() + sLeftEdgeMargin)
itemPos.setX(boundingRect().x() + sLeftEdgeMargin);
if (itemPos.x() > boundingRect().x() + boundingRect().width() - sLeftEdgeMargin)
itemPos.setX(boundingRect().x() + boundingRect().width() - sLeftEdgeMargin);
itemPos.setY(y);
itemPos = mapToScene(itemPos);
scene()->moveTo(itemPos);
scene()->drawLineTo(itemPos, width, true);
}
void UBGraphicsAristo::DrawLine(const QPointF &scenePos, qreal width)
{
QPointF itemPos = mapFromScene(scenePos);
qreal y;
y = rotationCenter().y();
if (itemPos.x() < boundingRect().x() + sLeftEdgeMargin)
itemPos.setX(boundingRect().x() + sLeftEdgeMargin);
if (itemPos.x() > boundingRect().x() + boundingRect().width() - sLeftEdgeMargin)
itemPos.setX(boundingRect().x() + boundingRect().width() - sLeftEdgeMargin);
itemPos.setY(y);
itemPos = mapToScene(itemPos);
// We have to use "pointed" line for marker tool
scene()->drawLineTo(itemPos, width,
UBDrawingController::drawingController()->stylusTool() != UBStylusTool::Marker);
}
void UBGraphicsAristo::EndLine()
{
/* NOOP */
}
UBGraphicsScene* UBGraphicsAristo::scene() const
{
return static_cast<UBGraphicsScene*>(QGraphicsPathItem::scene());
}