340 lines
11 KiB
C++
340 lines
11 KiB
C++
/***************************************************************************
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* Copyright (c) 2013 Luke Parry <l.parry@warwick.ac.uk> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <cassert>
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# include <QPainterPath>
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#endif
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#include <Mod/TechDraw/App/ArrowPropEnum.h>
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#include "QGIArrow.h"
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#include "PreferencesGui.h"
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#include "Rez.h"
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using namespace TechDrawGui;
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using namespace TechDraw;
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QGIArrow::QGIArrow() :
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m_fill(Qt::SolidPattern),
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m_size(getPrefArrowSize()),
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m_style(ArrowType::FILLED_ARROW),
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m_dirMode(false),
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m_dir(Base::Vector3d(1.0, 0.0, 0.0))
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{
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setFlipped(false);
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setFillStyle(Qt::SolidPattern);
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m_brush.setStyle(m_fill);
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m_colNormalFill = getNormalColor();
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setCacheMode(QGraphicsItem::NoCache);
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setAcceptHoverEvents(false);
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setFlag(QGraphicsItem::ItemIsSelectable, false);
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setFlag(QGraphicsItem::ItemIsMovable, false);
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}
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void QGIArrow::draw() {
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QPainterPath path;
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if (m_style == ArrowType::FILLED_ARROW) {
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if (m_dirMode) {
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path = makeFilledTriangle(getDirection(), m_size, m_size/6.0);
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} else {
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path = makeFilledTriangle(m_size, m_size/6.0, isFlipped()); //"arrow l/w sb 3/1" ??
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}
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} else if (m_style == ArrowType::OPEN_ARROW) {
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if (m_dirMode) {
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path = makeOpenArrow(getDirection(), m_size, m_size/3.0); //broad arrow?
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} else {
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path = makeOpenArrow(m_size, m_size/3.0, isFlipped());
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}
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} else if (m_style == ArrowType::TICK) {
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if (m_dirMode) {
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path = makeHashMark(getDirection(), m_size/2.0, m_size/2.0); //big enough?
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} else {
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path = makeHashMark(m_size/2.0, m_size/2.0, isFlipped()); //big enough?
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}
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} else if (m_style == ArrowType::DOT) {
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path = makeDot(m_size/2.0, m_size/2.0, isFlipped());
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} else if (m_style == ArrowType::OPEN_CIRCLE) {
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path = makeOpenDot(m_size/2.0, m_size/2.0, isFlipped());
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} else if (m_style == ArrowType::FORK) {
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if (m_dirMode) {
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path = makeForkArrow(getDirection(), m_size/2.0, m_size/2.0); //big enough?
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} else {
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path = makeForkArrow(m_size/2.0, m_size/2.0, isFlipped()); //big enough?
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}
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} else if (m_style == ArrowType::FILLED_TRIANGLE){
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if (m_dirMode) {
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path = makePyramid(getDirection(), m_size);
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} else {
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path = makePyramid(m_size, isFlipped());
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}
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}else {
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path = makeFilledTriangle(m_size, m_size/6.0, isFlipped()); //sb a question mark or ???
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}
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setPath(path);
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}
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void QGIArrow::setSize(double s)
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{
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m_size = s;
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}
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QPainterPath QGIArrow::makeFilledTriangle(double length, double width, bool flipped)
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{
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//(0, 0) is tip of arrow
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if (!flipped) {
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length *= -1;
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}
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QPainterPath path;
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path.moveTo(QPointF(0., 0.));
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path.lineTo(QPointF(Rez::guiX(length), Rez::guiX(-width)));
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path.lineTo(QPointF(Rez::guiX(length), Rez::guiX(width)));
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path.closeSubpath();
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setFillStyle(Qt::SolidPattern);
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return path;
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}
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QPainterPath QGIArrow::makeFilledTriangle(Base::Vector3d dir, double length, double width)
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{
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//(0, 0) is tip of arrow
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// dir is direction arrow points
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Base::Vector3d negDir = -dir;
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negDir.Normalize();
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Base::Vector3d perp(-negDir.y, negDir.x, 0.0);
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Base::Vector3d barb1 = negDir * length + perp * width;
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Base::Vector3d barb2 = negDir * length - perp * width;
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QPainterPath path;
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path.moveTo(QPointF(0., 0.));
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path.lineTo(QPointF(Rez::guiX(barb1.x), Rez::guiX(barb1.y)));
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path.lineTo(QPointF(Rez::guiX(barb2.x), Rez::guiX(barb2.y)));
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path.closeSubpath();
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setFillStyle(Qt::SolidPattern);
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return path;
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}
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QPainterPath QGIArrow::makeOpenArrow(double length, double width, bool flipped)
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{
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//(0, 0) is tip of arrow
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if (!flipped) {
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length *= -1;
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}
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QPainterPath path;
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path.moveTo(QPointF(Rez::guiX(length), Rez::guiX(-width)));
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path.lineTo(QPointF(0., 0.));
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path.lineTo(QPointF(Rez::guiX(length), Rez::guiX(width)));
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setFillStyle(Qt::NoBrush);
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return path;
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}
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QPainterPath QGIArrow::makeOpenArrow(Base::Vector3d dir, double length, double width)
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{
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//(0, 0) is tip of arrow
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Base::Vector3d negDir = -dir;
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negDir.Normalize();
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Base::Vector3d perp(-negDir.y, negDir.x, 0.0);
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Base::Vector3d barb1 = negDir * length + perp * width;
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Base::Vector3d barb2 = negDir * length - perp * width;
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QPainterPath path;
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path.moveTo(QPointF(Rez::guiX(barb1.x), Rez::guiX(barb1.y)));
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path.lineTo(QPointF(0., 0.));
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path.lineTo(QPointF(Rez::guiX(barb2.x), Rez::guiX(barb2.y)));
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setFillStyle(Qt::NoBrush);
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return path;
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}
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QPainterPath QGIArrow::makeHashMark(double length, double width, bool flipped) //Arch tick
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{
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double adjWidth = 1.0;
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//(0, 0) is tip of arrow
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if (!flipped) {
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length *= -1;
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adjWidth *= -1;
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}
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QPainterPath path;
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path.moveTo(QPointF(Rez::guiX(length), Rez::guiX(adjWidth * (-width))));
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path.lineTo(QPointF(Rez::guiX(-length), Rez::guiX(adjWidth * width)));
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setFillStyle(Qt::NoBrush);
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return path;
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}
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QPainterPath QGIArrow::makeHashMark(Base::Vector3d dir, double length, double width) //Arch tick
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{
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double adjWidth = 1.0;
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Base::Vector3d negDir = -dir;
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Base::Vector3d normDir = dir;
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negDir.Normalize();
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normDir.Normalize();
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Base::Vector3d perp(-negDir.y, negDir.x, 0.0);
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Base::Vector3d barb1 = negDir * length - perp * (adjWidth * width);
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Base::Vector3d barb2 = normDir * length + perp * (adjWidth * width);
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QPainterPath path;
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path.moveTo(QPointF(Rez::guiX(barb1.x), Rez::guiX(barb1.y)));
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path.lineTo(QPointF(Rez::guiX(barb2.x), Rez::guiX(barb2.y)));
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setFillStyle(Qt::NoBrush);
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return path;
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}
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QPainterPath QGIArrow::makeDot(double length, double width, bool flipped) //closed dot
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{
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Q_UNUSED(flipped);
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QPainterPath path;
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path.moveTo(0.0, 0.0); ////(0, 0) is Center of dot
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path.addEllipse(Rez::guiX(-length/2.0), Rez::guiX(-width/2.0), Rez::guiX(length), Rez::guiX(width));
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setFillStyle(Qt::SolidPattern);
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return path;
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}
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QPainterPath QGIArrow::makeOpenDot(double length, double width, bool flipped)
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{
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Q_UNUSED(flipped);
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QPainterPath path;
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path.moveTo(0.0, 0.0); ////(0, 0) is Center of dot
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path.addEllipse(Rez::guiX(-length/2.0), Rez::guiX(-width/2.0), Rez::guiX(length), Rez::guiX(width));
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setFillStyle(Qt::NoBrush);
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return path;
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}
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QPainterPath QGIArrow::makeForkArrow(double length, double width, bool flipped)
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{
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//(0, 0) is tip of arrow
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if (flipped) {
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length *= -1;
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}
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QPainterPath path;
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path.moveTo(QPointF(Rez::guiX(length), Rez::guiX(-width)));
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path.lineTo(QPointF(0., 0.));
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path.lineTo(QPointF(Rez::guiX(length), Rez::guiX(width)));
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setFillStyle(Qt::NoBrush);
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return path;
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}
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QPainterPath QGIArrow::makeForkArrow(Base::Vector3d dir, double length, double width)
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{
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//(0, 0) is tip of arrow
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Base::Vector3d negDir = -dir;
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Base::Vector3d normDir = dir;
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negDir.Normalize();
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normDir.Normalize();
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Base::Vector3d perp(-normDir.y, normDir.x, 0.0);
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Base::Vector3d barb1 = normDir * length + perp * width;
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Base::Vector3d barb2 = normDir * length - perp * width;
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QPainterPath path;
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path.moveTo(QPointF(Rez::guiX(barb1.x), Rez::guiX(barb1.y)));
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path.lineTo(QPointF(0., 0.));
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path.lineTo(QPointF(Rez::guiX(barb2.x), Rez::guiX(barb2.y)));
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setFillStyle(Qt::NoBrush);
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return path;
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}
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QPainterPath QGIArrow::makePyramid(double length, bool flipped)
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{
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double half_width = length/2.;
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double top = -length;
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double base = 0.;
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// [(0, -width), (0, width)] is base of arrow
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if (flipped) {
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top = 0.;
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base = -length;
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}
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top = Rez::guiX(top);
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base = Rez::guiX(base);
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QPainterPath path;
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path.moveTo(QPointF(top, 0.));
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path.lineTo(QPointF(base, Rez::guiX(-half_width)));
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path.lineTo(QPointF(base, Rez::guiX(half_width)));
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path.closeSubpath();
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setFillStyle(Qt::SolidPattern);
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return path;
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}
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QPainterPath QGIArrow::makePyramid(Base::Vector3d dir, double length)
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{
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//(0, 0) is tip of arrow
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// dir is direction arrow points
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Base::Vector3d negDir = -dir;
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negDir.Normalize();
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double width = length / 2.;
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Base::Vector3d perp(-negDir.y, negDir.x, 0.0);
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Base::Vector3d barb1 = perp * width;
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Base::Vector3d barb2 = perp * -width;
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Base::Vector3d top = negDir * length;
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QPainterPath path;
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path.moveTo(QPointF(Rez::guiX(top.x), Rez::guiX(top.y)));
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path.lineTo(QPointF(Rez::guiX(barb1.x), Rez::guiX(barb1.y)));
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path.lineTo(QPointF(Rez::guiX(barb2.x), Rez::guiX(barb2.y)));
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path.closeSubpath();
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setFillStyle(Qt::SolidPattern);
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return path;
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}
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ArrowType QGIArrow::getPrefArrowStyle()
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{
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return PreferencesGui::dimArrowStyle();
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}
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double QGIArrow::getPrefArrowSize()
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{
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return PreferencesGui::dimArrowSize();
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}
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double QGIArrow::getOverlapAdjust(ArrowType style, double size)
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{
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// adjustment required depends on arrow size and type! :(
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// ex for fork and tick, adjustment sb zero. 0.25 is good for filled triangle, 0.1 for open arrow.
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// open circle sb = radius
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// NOTE: this may need to be adjusted to account for line thickness too.
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// Base::Console().Message("QGIA::getOverlapAdjust(%d, %.3f) \n", style, size);
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switch(style) {
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case ArrowType::FILLED_ARROW:
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return 0.50 * size;
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case ArrowType::OPEN_ARROW:
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return 0.10 * size;
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case ArrowType::TICK:
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return 0.0;
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case ArrowType::DOT:
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return 0.0;
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case ArrowType::OPEN_CIRCLE:
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//diameter is size/2 so radius is size/4
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return 0.25 * size;
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case ArrowType::FORK:
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return 0.0;
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case ArrowType::FILLED_TRIANGLE:
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return size;
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case ArrowType::NONE:
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return 0.0;
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}
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return 1.0; // Unknown
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}
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