372 lines
12 KiB
C++
372 lines
12 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 <assert.h>
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#include <QGraphicsScene>
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#include <QMenu>
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#include <QMouseEvent>
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#include <QGraphicsSceneHoverEvent>
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#include <QStyleOptionGraphicsItem>
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#include <QPainterPathStroker>
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#include <QPainter>
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#endif
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#include <App/Application.h>
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#include <Base/Parameter.h>
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#include <Base/Console.h>
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#include "Rez.h"
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#include "QGIArrow.h"
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using namespace TechDrawGui;
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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(0),
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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_colDefFill = getNormalColor();
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m_colNormalFill = m_colDefFill;
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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 == FILLED_TRIANGLE) {
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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 == 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 == HASH_MARK) {
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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 == DOT) {
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path = makeDot(m_size/2.0,m_size/2.0,isFlipped());
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} else if (m_style == 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 == 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 == PYRAMID){
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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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int QGIArrow::getPrefArrowStyle()
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{
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Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter().
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GetGroup("BaseApp")->GetGroup("Preferences")->
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GetGroup("Mod/TechDraw/Dimensions");
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int style = hGrp->GetInt("ArrowStyle", 0);
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return style;
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}
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double QGIArrow::getPrefArrowSize()
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{
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Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter().
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GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Dimensions");
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double style = hGrp->GetFloat("ArrowSize", 3.5);
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return style;
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}
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double QGIArrow::getOverlapAdjust(int 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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double result = 1.0;
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switch(style) {
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case FILLED_TRIANGLE:
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result = 0.50 * size;
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break;
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case OPEN_ARROW:
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result = 0.10 * size;
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break;
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case HASH_MARK:
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result = 0.0;
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break;
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case DOT:
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result = 0.0;
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break;
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case OPEN_CIRCLE:
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//diameter is size/2 so radius is size/4
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result = 0.25 * size;
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break;
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case FORK:
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result = 0.0;
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break;
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case PYRAMID:
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result = size;
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break;
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case NONE:
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result = 0.0;
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break;
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default: //unknown
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result = 1.0;
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}
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return result;
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}
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void QGIArrow::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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QStyleOptionGraphicsItem myOption(*option);
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myOption.state &= ~QStyle::State_Selected;
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QGIPrimPath::paint (painter, &myOption, widget);
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}
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