Claudio Valerio
12 years ago
commit
72958a79ca
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/*
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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#include "UBGraphicsAristo.h" |
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#include "board/UBBoardController.h" |
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#include "board/UBDrawingController.h" |
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#include "core/UBApplication.h" |
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#include "domain/UBGraphicsScene.h" |
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#include <QColor> |
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#include <QFont> |
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#include <QFontMetricsF> |
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#include <QGraphicsItem> |
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#include <QLineF> |
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#include <QPolygonF> |
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#include <QRadialGradient> |
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#include <QString> |
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#include "core/memcheck.h" |
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const QRectF UBGraphicsAristo::sDefaultRect = QRectF(0, 0, 800, 500); |
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const UBGraphicsAristo::Orientation UBGraphicsAristo::sDefaultOrientation = UBGraphicsAristo::Bottom; |
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UBGraphicsAristo::UBGraphicsAristo() |
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: UBAbstractDrawRuler() |
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, QGraphicsPathItem() |
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, mMarking(false) |
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, mResizing(false) |
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, mRotating(false) |
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, mOrientation(Undefined) |
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, mRotatedAngle(0) |
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, mMarkerAngle(0) |
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, mStartAngle(0) |
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, mSpan(180) |
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, mHFlipSvgItem(0) |
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, mMarkerSvgItem(0) |
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, mResizeSvgItem(0) |
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, mRotateSvgItem(0) |
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{ |
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mHFlipSvgItem = new QGraphicsSvgItem(":/images/vflipTool.svg", this); |
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mHFlipSvgItem->setVisible(false); |
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mHFlipSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control)); |
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mResizeSvgItem = new QGraphicsSvgItem(":/images/resizeTool.svg", this); |
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mResizeSvgItem->setVisible(false); |
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mResizeSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control)); |
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mRotateSvgItem = new QGraphicsSvgItem(":/images/rotateTool.svg", this); |
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mRotateSvgItem->setVisible(false); |
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mRotateSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control)); |
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mMarkerSvgItem = new QGraphicsSvgItem(":/images/angleMarker.svg", this); |
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mMarkerSvgItem->setVisible(false); |
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mMarkerSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool)); |
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mMarkerSvgItem->setVisible(true); |
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create(*this); |
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setBoundingRect(sDefaultRect); |
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setOrientation(sDefaultOrientation); |
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} |
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UBGraphicsAristo::~UBGraphicsAristo() |
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{ |
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/* NOOP */ |
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} |
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/*
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* setOrientation() modify the tool orientation. |
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* makeGeometryChange() is called so points are recomputed, control items are positionnated and shape is determined according to this modification. |
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*/ |
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void UBGraphicsAristo::setOrientation(Orientation orientation) |
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{ |
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mOrientation = orientation; |
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makeGeometryChange(); |
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} |
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/* calculatePoints() is used to calculate polygon's apexes coordinates.
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* This function handles orientation changes too. |
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*/ |
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void UBGraphicsAristo::calculatePoints() |
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{ |
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switch (mOrientation) { |
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case Bottom: |
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C.setX(boundingRect().center().x()); |
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C.setY(boundingRect().bottom()); |
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A.setX(boundingRect().left()); |
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A.setY(boundingRect().bottom() - boundingRect().width() / 2); |
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B.setX(boundingRect().right()); |
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B.setY(boundingRect().bottom() - boundingRect().width() / 2); |
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break; |
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case Top: |
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C.setX(boundingRect().center().x()); |
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C.setY(boundingRect().top()); |
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A.setX(boundingRect().left()); |
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A.setY(boundingRect().top() + boundingRect().width() / 2); |
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B.setX(boundingRect().right()); |
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B.setY(boundingRect().top() + boundingRect().width() / 2); |
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break; |
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default: |
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break; |
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} |
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} |
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/*
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* setItemsPos() places control items according to A, B and C positions. |
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* Call this function after A, B or C position modification, mostly after calling calculatePoints(). |
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* These positions has to be set when calling setPath() to allow hover events on items which are not into the main polygon. |
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*/ |
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void UBGraphicsAristo::setItemsPos() |
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{ |
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mCloseSvgItem->setPos(closeButtonRect().topLeft() + rotationCenter()); |
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mHFlipSvgItem->setPos(hFlipRect().topLeft() + rotationCenter()); |
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mRotateSvgItem->setPos(rotateRect().topLeft() + rotationCenter()); |
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mResizeSvgItem->setPos(resizeButtonRect().topLeft() + rotationCenter());
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mMarkerSvgItem->setPos(markerButtonRect().topLeft() + rotationCenter()); |
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} |
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/*
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* determinePath() modify the shape according to apexes coordinates and control item positions. |
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* This is useful when orientation is modified. |
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* Returns the painter path corresponding to object parameters. |
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*/ |
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QPainterPath UBGraphicsAristo::determinePath() |
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{ |
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QPainterPath path; |
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QPolygonF polygon; |
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polygon << A << B << C; |
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path.addPolygon(polygon); |
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path.addPath(mResizeSvgItem->shape().translated(mResizeSvgItem->pos())); |
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path.addPath(mMarkerSvgItem->shape().translated(mMarkerSvgItem->pos())); |
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return path; |
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} |
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/*
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* setBoundingRect() is a helper to set the given rectangle as the new shape to limit apexes coordinates. |
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* This is useful when instanciating or resizing the object. |
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* makeGeometryChange() is called so points are recomputed, control items are positionnated and shape is determined according to this modification.
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* Setting bounds' width less than 300 is not allowed. |
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*/ |
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void UBGraphicsAristo::setBoundingRect(QRectF boundingRect) |
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{ |
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if (boundingRect.width() < 300) |
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return; |
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QPainterPath path; |
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path.addRect(boundingRect); |
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setPath(path); |
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if (mOrientation != Undefined) |
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makeGeometryChange(); |
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} |
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void UBGraphicsAristo::makeGeometryChange() |
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{ |
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calculatePoints(); |
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setItemsPos(); |
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setPath(determinePath()); |
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} |
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UBItem* UBGraphicsAristo::deepCopy(void) const |
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{ |
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UBGraphicsAristo* copy = new UBGraphicsAristo(); |
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copyItemParameters(copy); |
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return copy; |
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} |
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void UBGraphicsAristo::copyItemParameters(UBItem *copy) const |
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{ |
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UBGraphicsAristo* cp = dynamic_cast<UBGraphicsAristo*>(copy); |
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if (cp) |
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{
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/* TODO: copy all members */ |
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cp->setPos(this->pos()); |
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cp->setTransform(this->transform()); |
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cp->setBoundingRect(boundingRect()); |
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cp->setOrientation(mOrientation); |
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cp->mRotatedAngle = mRotatedAngle; |
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cp->mMarkerAngle = mMarkerAngle; |
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} |
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} |
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void UBGraphicsAristo::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) |
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{ |
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QPolygonF polygon; |
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painter->setBrush(fillBrush()); |
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painter->setPen(drawColor()); |
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polygon << A << B << C; |
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painter->drawPolygon(polygon); |
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polygon.clear(); |
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paintGraduations(painter); |
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paintMarker(painter);
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} |
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QBrush UBGraphicsAristo::fillBrush() const |
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{ |
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QColor fillColor = edgeFillColor();// scene()->isDarkBackground() ? sDarkBackgroundFillColor : sFillColor;
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QColor fillColorCenter = middleFillColor();//scene()->isDarkBackground() ? sDarkBackgroundFillColorCenter : sFillColorCenter;
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QColor transparentWhite = Qt::white; |
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transparentWhite.setAlpha(scene()->isDarkBackground() ? sDrawTransparency : sFillTransparency); |
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QRadialGradient radialGradient(boundingRect().center(), radius(), boundingRect().center()); |
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radialGradient.setColorAt(0, fillColorCenter); |
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radialGradient.setColorAt(1, fillColor); |
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return radialGradient; |
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} |
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/* paintGraduations() paints graduations on the ruler side (length graduations) and the two other sides (angle graduation) */ |
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void UBGraphicsAristo::paintGraduations(QPainter *painter) |
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{ |
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paintRulerGraduations(painter); |
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paintProtractorGraduations(painter); |
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} |
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void UBGraphicsAristo::paintRulerGraduations(QPainter *painter) |
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{ |
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/* defining useful constants */ |
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const int centimeterGraduationHeight = 15; |
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const int halfCentimeterGraduationHeight = 10; |
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const int millimeterGraduationHeight = 5; |
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const int millimetersPerCentimeter = 10; |
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const int millimetersPerHalfCentimeter = 5; |
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painter->save(); |
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painter->setFont(font()); |
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QFontMetricsF fontMetrics(painter->font()); |
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/* Browsing milliters in half width of ruler side */ |
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for (int millimeters = 0; millimeters < (boundingRect().width() / 2 - sLeftEdgeMargin - sRoundingRadius) / sPixelsPerMillimeter; millimeters++) |
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{ |
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/* defining graduationHeight ; values are different to draw bigger lines if millimiter considered is a centimeter or a half centimeter */ |
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int graduationHeight = (0 == millimeters % millimetersPerCentimeter) ? |
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centimeterGraduationHeight : |
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((0 == millimeters % millimetersPerHalfCentimeter) ? |
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halfCentimeterGraduationHeight : millimeterGraduationHeight); |
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/* correcting graduationHeight: draw the line in the other direction in case ruler is top-oriented, to stay inside the tool and inside the rect */ |
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graduationHeight = mOrientation == Bottom ? graduationHeight : - graduationHeight; |
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/* drawing graduation to the left and to the right of origin, which is the center of graduated side */ |
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painter->drawLine(QLine(rotationCenter().x() + sPixelsPerMillimeter * millimeters, rotationCenter().y(), rotationCenter().x() + sPixelsPerMillimeter * millimeters, rotationCenter().y() + graduationHeight)); |
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if (millimeters != 0) |
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painter->drawLine(QLine(rotationCenter().x() - sPixelsPerMillimeter * millimeters, rotationCenter().y(), rotationCenter().x() - sPixelsPerMillimeter * millimeters, rotationCenter().y() + graduationHeight)); |
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/* drawing associated value if considered graduation is a centimeter */ |
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if (0 == millimeters % millimetersPerCentimeter) |
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{ |
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/* defining graduation value */ |
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QString text = QString("%1").arg((int)(millimeters / millimetersPerCentimeter)); |
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/* staying inside polygon */ |
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if (rotationCenter().x() + sPixelsPerMillimeter * millimeters + fontMetrics.width(text) / 2 < boundingRect().right()) |
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{ |
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qreal textWidth = fontMetrics.width(text); |
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qreal textHeight = fontMetrics.tightBoundingRect(text).height() + 5; |
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/* text y-coordinate is different according to tool's orientation */ |
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qreal textY = mOrientation == Bottom ? A.y() + 5 + centimeterGraduationHeight : A.y() - 5 - centimeterGraduationHeight + graduationHeight; |
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/* if text's rect is not out of polygon's bounds, drawing value below or above graduation */ |
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QPointF intersectionPoint; |
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bool paint = false; |
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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) { |
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paint = true; |
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} |
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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) { |
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paint = true; |
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} |
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if (paint) { |
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painter->drawText( |
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QRectF(rotationCenter().x() + sPixelsPerMillimeter * millimeters - textWidth / 2, textY, textWidth, textHeight), |
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Qt::AlignVCenter, text); |
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if (millimeters != 0) |
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painter->drawText( |
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QRectF(rotationCenter().x() - sPixelsPerMillimeter * millimeters - textWidth / 2, textY, textWidth, textHeight), |
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Qt::AlignVCenter, text); |
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} |
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} |
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} |
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} |
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painter->restore(); |
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} |
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void UBGraphicsAristo::paintProtractorGraduations(QPainter* painter) |
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{ |
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/* defining useful constants */ |
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const int tenDegreeGraduationLength = 15; |
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const int fiveDegreeGraduationLength = 10; |
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const int oneDegreeGraduationLength = 5; |
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painter->save(); |
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QFont font1 = painter->font(); |
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#ifdef Q_WS_MAC |
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font1.setPointSizeF(font1.pointSizeF() - 3); |
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#endif |
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QFontMetricsF fm1(font1); |
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//Font for internal arc
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QFont font2 = painter->font(); |
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font2.setPointSizeF(font1.pointSizeF()/1.5); |
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QFontMetricsF fm2(font2); |
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/* defining virtual arc diameter */ |
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qreal rad = radius(); |
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QPointF center = rotationCenter(); |
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/* browsing angles */ |
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for (int angle = 1; angle < mSpan; angle++) |
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{ |
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int graduationLength = (0 == angle % 10) ? tenDegreeGraduationLength : ((0 == angle % 5) ? fiveDegreeGraduationLength : oneDegreeGraduationLength); |
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qreal co = cos(((qreal)angle + mStartAngle) * PI/180); |
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qreal si = sin(((qreal)angle + mStartAngle) * PI/180); |
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/* inverse sinus according to the orientation, to draw graduations on the polygon */ |
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si = mOrientation == Bottom ? -si : si; |
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/* drawing the graduation around the virtual arc */ |
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if (angle >= sArcAngleMargin && angle <= mSpan - sArcAngleMargin) |
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painter->drawLine(QLineF(QPointF(center.x()+ rad/2*co, center.y() - rad/2*si), |
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QPointF(center.x()+ (rad/2 + graduationLength)*co, |
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center.y() - (rad/2 + graduationLength)*si))); |
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QPointF intersectionPoint; |
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QLineF referenceLine; |
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if (angle < 90) |
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referenceLine.setP1(B); |
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else |
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referenceLine.setP1(A); |
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referenceLine.setP2(C); |
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/* if angle is 10-multiple, drawing it's value, rotated to be easily red */ |
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if (0 == angle % 10) { |
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QString grad = QString("%1").arg((int)(angle)); |
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QString grad2 = QString("%1").arg((int)mSpan - angle); |
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painter->setFont(font2); |
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painter->save(); |
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painter->translate(center.x() + (rad/2 + graduationLength*1.5)*co, center.y() - (rad/2 + graduationLength*1.5)*si); |
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int degrees = mOrientation == Bottom ? angle : -angle; |
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painter->rotate(-90 + degrees); |
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painter->drawText(- fm2.width(grad)/2, - fm2.height()/2, fm2.width(grad), fm2.height(), Qt::AlignCenter, grad); |
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painter->restore(); |
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painter->setFont(font1); |
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/* drawing the graduation near tool's side */ |
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if (QLineF(QPointF(center.x()+ rad/2*co, center.y() - rad/2*si), |
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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()); |
||||||
|
} |
||||||
@ -0,0 +1,156 @@ |
|||||||
|
/*
|
||||||
|
* 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/>.
|
||||||
|
*/ |
||||||
|
|
||||||
|
#ifndef UBGRAPHICSARISTO_H_ |
||||||
|
#define UBGRAPHICSARISTO_H_ |
||||||
|
|
||||||
|
#include "core/UB.h" |
||||||
|
#include "domain/UBItem.h" |
||||||
|
#include "domain/UBGraphicsScene.h" |
||||||
|
#include "tools/UBAbstractDrawRuler.h" |
||||||
|
|
||||||
|
#include <QtGlobal> |
||||||
|
#include <QBrush> |
||||||
|
#include <QCursor> |
||||||
|
#include <QGraphicsPathItem> |
||||||
|
#include <QGraphicsSceneHoverEvent> |
||||||
|
#include <QGraphicsSceneMouseEvent> |
||||||
|
#include <QGraphicsSvgItem> |
||||||
|
#include <QObject> |
||||||
|
#include <QPainter> |
||||||
|
#include <QPainterPath> |
||||||
|
#include <QPointF> |
||||||
|
#include <QRectF> |
||||||
|
#include <QStyleOptionGraphicsItem> |
||||||
|
#include <QTransform> |
||||||
|
#include <QWidget> |
||||||
|
|
||||||
|
class UBGraphicsAristo : public UBAbstractDrawRuler, public QGraphicsPathItem, public UBItem |
||||||
|
{ |
||||||
|
Q_OBJECT |
||||||
|
|
||||||
|
public: |
||||||
|
UBGraphicsAristo(); |
||||||
|
virtual ~UBGraphicsAristo(); |
||||||
|
|
||||||
|
enum { |
||||||
|
Type = UBGraphicsItemType::AristoItemType
|
||||||
|
}; |
||||||
|
|
||||||
|
enum Tool { |
||||||
|
None, |
||||||
|
Move, |
||||||
|
Resize, |
||||||
|
Rotate, |
||||||
|
Close, |
||||||
|
MoveMarker, |
||||||
|
HorizontalFlip |
||||||
|
}; |
||||||
|
|
||||||
|
enum Orientation |
||||||
|
{ |
||||||
|
Bottom = 0, |
||||||
|
Top, |
||||||
|
Undefined |
||||||
|
}; |
||||||
|
|
||||||
|
void setOrientation(Orientation orientation); |
||||||
|
void setBoundingRect(QRectF boundingRect);
|
||||||
|
|
||||||
|
virtual UBItem* deepCopy() const; |
||||||
|
virtual void copyItemParameters(UBItem *copy) const; |
||||||
|
|
||||||
|
virtual void StartLine(const QPointF& scenePos, qreal width); |
||||||
|
virtual void DrawLine(const QPointF& position, qreal width); |
||||||
|
virtual void EndLine(); |
||||||
|
|
||||||
|
virtual int type() const |
||||||
|
{ |
||||||
|
return Type; |
||||||
|
} |
||||||
|
UBGraphicsScene* scene() const; |
||||||
|
|
||||||
|
protected: |
||||||
|
virtual void paint (QPainter *painter, const QStyleOptionGraphicsItem *styleOption, QWidget *widget); |
||||||
|
|
||||||
|
virtual void rotateAroundCenter(qreal angle); |
||||||
|
virtual void resize(qreal factor); |
||||||
|
|
||||||
|
virtual QPointF rotationCenter() const; |
||||||
|
|
||||||
|
virtual QRectF closeButtonRect() const; |
||||||
|
QRectF hFlipRect() const; |
||||||
|
QRectF markerButtonRect() const; |
||||||
|
QRectF resizeButtonRect () const;
|
||||||
|
QRectF rotateRect() const; |
||||||
|
|
||||||
|
QCursor flipCursor() const;
|
||||||
|
QCursor markerCursor() const; |
||||||
|
QCursor resizeCursor() const; |
||||||
|
|
||||||
|
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event); |
||||||
|
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event); |
||||||
|
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event); |
||||||
|
virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event); |
||||||
|
virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event); |
||||||
|
virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event); |
||||||
|
|
||||||
|
private: |
||||||
|
Tool toolFromPos(QPointF pos); |
||||||
|
|
||||||
|
QTransform calculateRotationTransform(); |
||||||
|
void rotateAroundCenter(QTransform& transform, QPointF center); |
||||||
|
|
||||||
|
void calculatePoints(); |
||||||
|
QPainterPath determinePath(); |
||||||
|
void setItemsPos(); |
||||||
|
void makeGeometryChange(); |
||||||
|
|
||||||
|
QBrush fillBrush() const; |
||||||
|
void paintGraduations(QPainter *painter); |
||||||
|
void paintMarker(QPainter *painter); |
||||||
|
void paintProtractorGraduations(QPainter* painter); |
||||||
|
void paintRulerGraduations(QPainter *painter); |
||||||
|
|
||||||
|
inline qreal radius () const |
||||||
|
{ |
||||||
|
return sqrt(((B.x() - A.x())*(B.x() - A.x()))+((B.y() - A.y())*(B.y() - A.y()))) * 9 / 16 - 20; |
||||||
|
}
|
||||||
|
|
||||||
|
bool mMarking; |
||||||
|
bool mResizing; |
||||||
|
bool mRotating; |
||||||
|
|
||||||
|
Orientation mOrientation; |
||||||
|
|
||||||
|
qreal mRotatedAngle; |
||||||
|
qreal mMarkerAngle; |
||||||
|
qreal mStartAngle; |
||||||
|
|
||||||
|
qreal mSpan; |
||||||
|
|
||||||
|
QGraphicsSvgItem* mHFlipSvgItem; |
||||||
|
QGraphicsSvgItem* mMarkerSvgItem; |
||||||
|
QGraphicsSvgItem* mResizeSvgItem; |
||||||
|
QGraphicsSvgItem* mRotateSvgItem;
|
||||||
|
|
||||||
|
QPointF A, B, C; |
||||||
|
|
||||||
|
static const int sArcAngleMargin = 5; |
||||||
|
static const Orientation sDefaultOrientation;
|
||||||
|
static const QRectF sDefaultRect; |
||||||
|
}; |
||||||
|
|
||||||
|
#endif /* UBGRAPHICSARISTO_H_ */ |
||||||
Loading…
Reference in new issue