1505ee3115
using custom QT pen styles, the center and section lines look much
better.
With some math we are also able to control the middle position, thus
the centerlines will always look good, regardless of the size of an
object.
Also getting the section label size from the settings, so the font
size is controllable and not hardcoded.
Bonus: adding blank templates for the common paper sizes (as the
Drawing WB has them)
140 lines
4.9 KiB
C++
140 lines
4.9 KiB
C++
/***************************************************************************
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* Copyright (c) 2016 WandererFan <wandererfan@gmail.com> *
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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 <QPainter>
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#include <QStyleOptionGraphicsItem>
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#endif
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#include <cmath>
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#include <App/Application.h>
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#include <App/Material.h>
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#include <Base/Console.h>
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#include <Base/Parameter.h>
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#include "QGICenterLine.h"
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using namespace TechDrawGui;
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QGICenterLine::QGICenterLine()
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{
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m_line = new QGraphicsPathItem();
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addToGroup(m_line);
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setWidth(0.0);
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setStyle(getCenterStyle());
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setColor(getCenterColor());
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}
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void QGICenterLine::draw()
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{
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prepareGeometryChange();
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makeLine();
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update();
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}
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void QGICenterLine::makeLine()
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{
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QPainterPath pp;
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pp.moveTo(m_start);
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pp.lineTo(m_end);
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m_line->setPath(pp);
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}
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void QGICenterLine::setBounds(double x1,double y1,double x2,double y2)
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{
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m_start = QPointF(x1,y1);
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m_end = QPointF(x2,y2);
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}
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QColor QGICenterLine::getCenterColor()
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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/Decorations");
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App::Color fcColor = App::Color((uint32_t) hGrp->GetUnsigned("CenterColor", 0x00000000));
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return fcColor.asValue<QColor>();
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}
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Qt::PenStyle QGICenterLine::getCenterStyle()
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{
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Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter().GetGroup("BaseApp")->
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GetGroup("Preferences")->GetGroup("Mod/TechDraw/Decorations");
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Qt::PenStyle centerStyle = static_cast<Qt::PenStyle> (hGrp->GetInt("CenterLine", 4));
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return centerStyle;
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}
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void QGICenterLine::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget) {
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QStyleOptionGraphicsItem myOption(*option);
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myOption.state &= ~QStyle::State_Selected;
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setTools();
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QGIDecoration::paint (painter, &myOption, widget);
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}
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void QGICenterLine::setIntersection(bool isIntersecting) {
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/**
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* Set the intersection style for the centerline.
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* If isIntersecting is set to true, the middle of the centerline
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* will be the middle of a dash - therefore if two lines intersect, they
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* will form a cross.
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* If isIntersecting is set to false, the middle of the centerline will be a
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* dot.
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*/
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m_isintersection = isIntersecting;
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}
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void QGICenterLine::setTools()
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{
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if (m_styleCurrent == Qt::DashDotLine) {
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QVector<qreal> dashes;
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qreal space = 4; // in unit width
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qreal dash = 16;
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// dot must be really small when using CapStyle RoundCap but > 0
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// for CapStyle FlatCap you would need to set it to 1
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qreal dot = 0.000001;
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dashes << dot << space << dash << space;
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qreal dashlen = dot + 2 * space + dash;
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qreal l_len = sqrt(pow(m_start.x() - m_end.x(), 2) + pow(m_start.y() - m_end.y(), 2)) / 2.0;
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// convert from pixelunits to width units
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l_len = l_len / m_width;
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// note that the additional length using RoundCap or SquareCap does not
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// count here!
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if (m_isintersection) {
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m_pen.setDashOffset(dashlen - fmod(l_len, dashlen) + space + dash / 2);
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} else {
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m_pen.setDashOffset(dashlen - fmod(l_len, dashlen));
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}
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m_pen.setDashPattern(dashes);
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}
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else {
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m_pen.setStyle(m_styleCurrent);
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}
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m_pen.setCapStyle(Qt::RoundCap);
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m_pen.setWidthF(m_width);
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m_pen.setColor(m_colCurrent);
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m_line->setPen(m_pen);
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}
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