Files
create/src/Mod/TechDraw/Gui/QGIViewBalloon.cpp
2019-04-17 08:42:51 -04:00

597 lines
20 KiB
C++

/***************************************************************************
* Copyright (c) 2013 Luke Parry <l.parry@warwick.ac.uk> *
* Copyright (c) 2019 Franck Jullien <franck.jullien@gmail.com> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
#include <BRep_Builder.hxx>
#include <TopoDS_Compound.hxx>
# include <TopoDS_Shape.hxx>
# include <TopoDS_Edge.hxx>
# include <TopoDS.hxx>
# include <BRepAdaptor_Curve.hxx>
# include <Precision.hxx>
# include <QGraphicsScene>
# include <QGraphicsSceneMouseEvent>
# include <QPainter>
# include <QPaintDevice>
# include <QSvgGenerator>
# include <math.h>
#endif
#include <App/Application.h>
#include <App/Material.h>
#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/Parameter.h>
#include <Base/UnitsApi.h>
#include <Gui/Command.h>
#include <string>
#include <Mod/Part/App/PartFeature.h>
#include <Mod/TechDraw/App/DrawViewBalloon.h>
#include <Mod/TechDraw/App/DrawViewPart.h>
#include <Mod/TechDraw/App/DrawUtil.h>
#include <Mod/TechDraw/App/Geometry.h>
#include "Rez.h"
#include "ZVALUE.h"
#include "QGIArrow.h"
#include "QGIDimLines.h"
#include "QGIViewBalloon.h"
#include "ViewProviderBalloon.h"
#include "DrawGuiUtil.h"
#include "QGIViewPart.h"
#include "QGIViewDimension.h"
#include "QGVPage.h"
#include "MDIViewPage.h"
#define PI 3.14159
//TODO: hide the Qt coord system (+y down).
using namespace TechDraw;
using namespace TechDrawGui;
//**************************************************************
QGIViewBalloon::QGIViewBalloon() :
hasHover(false),
m_lineWidth(0.0)
{
setHandlesChildEvents(false);
setFlag(QGraphicsItem::ItemIsMovable, false);
setCacheMode(QGraphicsItem::NoCache);
balloonLabel = new QGIDatumLabel();
addToGroup(balloonLabel);
balloonLabel->setColor(getNormalColor());
balloonLabel->setPrettyNormal();
balloonLines = new QGIDimLines();
addToGroup(balloonLines);
balloonShape = new QGIDimLines();
addToGroup(balloonShape);
arrow = new QGIArrow();
addToGroup(arrow);
balloonLabel->setZValue(ZVALUE::LABEL);
arrow->setZValue(ZVALUE::DIMENSION);
balloonLines->setZValue(ZVALUE::DIMENSION);
balloonLines->setStyle(Qt::SolidLine);
balloonShape->setZValue(ZVALUE::DIMENSION);
balloonShape->setStyle(Qt::SolidLine);
oldLabelCenter = new QPointF;
oldLabelCenter->setX(0.0);
oldLabelCenter->setY(0.0);
balloonLabel->setPosFromCenter(0, 0);
// connecting the needed slots and signals
QObject::connect(
balloonLabel, SIGNAL(dragging(bool)),
this , SLOT (balloonLabelDragged(bool)));
QObject::connect(
balloonLabel, SIGNAL(dragFinished()),
this , SLOT (balloonLabelDragFinished()));
QObject::connect(
balloonLabel, SIGNAL(selected(bool)),
this , SLOT (select(bool)));
QObject::connect(
balloonLabel, SIGNAL(hover(bool)),
this , SLOT (hover(bool)));
toggleBorder(false);
setZValue(ZVALUE::DIMENSION); //note: this won't paint dimensions over another View if it stacks
//above this Dimension's parent view. need Layers?
}
void QGIViewBalloon::disconnect(void)
{
auto bnd = boost::bind(&QGIViewBalloon::parentViewMousePressed, this, _1, _2);
if (m_parent) {
m_parent->signalSelectPoint.disconnect(bnd);
}
}
void QGIViewBalloon::connect(QGIView *parent)
{
auto bnd = boost::bind(&QGIViewBalloon::parentViewMousePressed, this, _1, _2);
parent->signalSelectPoint.connect(bnd);
m_parent = parent;
}
void QGIViewBalloon::parentViewMousePressed(QGIView *view, QPointF pos)
{
//Base::Console().Message("%s::parentViewMousePressed from %s\n", this->getViewName(), view->getViewName());
onAttachPointPicked(view, pos);
}
void QGIViewBalloon::onAttachPointPicked(QGIView *view, QPointF pos)
{
Q_UNUSED(view);
auto balloon( dynamic_cast<TechDraw::DrawViewBalloon*>(getViewObject()) );
if( balloon == nullptr )
return;
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
auto bnd = boost::bind(&QGIViewBalloon::parentViewMousePressed, this, _1, _2);
if (balloon->OriginIsSet.getValue() == false) {
balloon->OriginX.setValue(pos.x());
balloon->OriginY.setValue(pos.y());
balloon->OriginIsSet.setValue(true);
m_parent->signalSelectPoint.disconnect(bnd);
MDIViewPage* mdi = getMDIViewPage();
QGVPage* page;
if (mdi != nullptr) {
page = mdi->getQGVPage();
QString labelText = QString::fromUtf8(std::to_string(page->balloonIndex).c_str());
balloon->Text.setValue(std::to_string(page->balloonIndex++).c_str());
QFont font = balloonLabel->getFont();
font.setPointSizeF(Rez::guiX(vp->Fontsize.getValue()));
font.setFamily(QString::fromUtf8(vp->Font.getValue()));
balloonLabel->setFont(font);
prepareGeometryChange();
// Default label position
balloonLabel->setPosFromCenter(pos.x() + 200, pos.y() -200);
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
}
}
draw();
}
void QGIViewBalloon::setViewPartFeature(TechDraw::DrawViewBalloon *balloon)
{
if(balloon == 0)
return;
setViewFeature(static_cast<TechDraw::DrawView *>(balloon));
float x = Rez::guiX(balloon->X.getValue());
float y = Rez::guiX(-balloon->Y.getValue());
balloonLabel->setColor(getNormalColor());
balloonLabel->setPosFromCenter(x, y);
QString labelText = QString::fromUtf8(balloon->Text.getStrValue().data());
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
updateBalloon();
draw();
}
void QGIViewBalloon::select(bool state)
{
setSelected(state);
draw();
}
void QGIViewBalloon::hover(bool state)
{
hasHover = state;
draw();
}
void QGIViewBalloon::updateView(bool update)
{
Q_UNUSED(update);
auto balloon( dynamic_cast<TechDraw::DrawViewBalloon*>(getViewObject()) );
if( balloon == nullptr )
return;
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
if (update) {
QString labelText = QString::fromUtf8(balloon->Text.getStrValue().data());
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
balloonLabel->setColor(getNormalColor());
}
updateBalloon();
draw();
}
void QGIViewBalloon::updateBalloon(bool obtuse)
{
(void) obtuse;
const auto balloon( dynamic_cast<TechDraw::DrawViewBalloon *>(getViewObject()) );
if( balloon == nullptr ) {
return;
}
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
if (balloon->OriginIsSet.getValue() == false)
return;
QFont font = balloonLabel->getFont();
font.setPointSizeF(Rez::guiX(vp->Fontsize.getValue()));
font.setFamily(QString::fromUtf8(vp->Font.getValue()));
balloonLabel->setFont(font);
QString labelText = QString::fromUtf8(balloon->Text.getStrValue().data());
balloonLabel->verticalSep = false;
if (strcmp(balloon->Symbol.getValueAsString(), "Rectangle") == 0) {
while (labelText.contains(QString::fromUtf8("|"))) {
int pos = labelText.indexOf(QString::fromUtf8("|"));
labelText.replace(pos, 1, QString::fromUtf8(" "));
QFontMetrics fm(balloonLabel->getFont());
balloonLabel->seps.push_back(fm.width((labelText.left(pos + 2))));
balloonLabel->verticalSep = true;
}
}
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
}
void QGIViewBalloon::balloonLabelDragged(bool ctrl)
{
draw_modifier(ctrl);
}
void QGIViewBalloon::balloonLabelDragFinished()
{
auto dim( dynamic_cast<TechDraw::DrawViewBalloon *>(getViewObject()) );
if( dim == nullptr ) {
return;
}
double x = Rez::appX(balloonLabel->X()),
y = Rez::appX(balloonLabel->Y());
Gui::Command::openCommand("Drag Balloon");
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.X = %f", dim->getNameInDocument(), x);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Y = %f", dim->getNameInDocument(), -y);
Gui::Command::commitCommand();
}
void QGIViewBalloon::draw()
{
draw_modifier(false);
}
void QGIViewBalloon::draw_modifier(bool modifier)
{
if (!isVisible()) { //should this be controlled by parent ViewPart?
return;
}
TechDraw::DrawViewBalloon *balloon = dynamic_cast<TechDraw::DrawViewBalloon *>(getViewObject());
if((!balloon) || //nothing to draw, don't try
(!balloon->isDerivedFrom(TechDraw::DrawViewBalloon::getClassTypeId()))) {
balloonLabel->hide();
hide();
return;
}
if (balloon->OriginIsSet.getValue() == false) {
return;
}
balloonLabel->show();
show();
const TechDraw::DrawViewPart *refObj = balloon->getViewPart();
if(!refObj->hasGeometry()) { //nothing to draw yet (restoring)
balloonLabel->hide();
hide();
return;
}
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
m_colNormal = getNormalColor();
balloonLabel->setColor(m_colNormal);
m_lineWidth = Rez::guiX(vp->LineWidth.getValue());
double textWidth = balloonLabel->getDimText()->boundingRect().width();
double textHeight = balloonLabel->getDimText()->boundingRect().height();
QRectF mappedRect = mapRectFromItem(balloonLabel, balloonLabel->boundingRect());
Base::Vector3d lblCenter = Base::Vector3d(mappedRect.center().x(), mappedRect.center().y(), 0.0);
if (balloon->isLocked()) {
lblCenter.x = (oldLabelCenter->x());
lblCenter.y = (oldLabelCenter->y());
balloonLabel->setFlag(QGraphicsItem::ItemIsMovable, false);
} else
balloonLabel->setFlag(QGraphicsItem::ItemIsMovable, true);
Base::Vector3d dLineStart;
Base::Vector3d kinkPoint;
double kinkLength = Rez::guiX(5.0);
float orginX = balloon->OriginX.getValue();
float orginY = balloon->OriginY.getValue();
const char *balloonType = balloon->Symbol.getValueAsString();
float scale = balloon->SymbolScale.getValue();
double offset = 0;
QPainterPath balloonPath;
if (strcmp(balloonType, "Circular") == 0) {
double balloonRadius = sqrt(pow((textHeight / 2.0), 2) + pow((textWidth / 2.0), 2));
balloonRadius = balloonRadius * scale;
balloonPath.moveTo(lblCenter.x, lblCenter.y);
balloonPath.addEllipse(lblCenter.x - balloonRadius,lblCenter.y - balloonRadius, balloonRadius * 2, balloonRadius * 2);
offset = balloonRadius;
} else if (strcmp(balloonType, "None") == 0) {
balloonPath = QPainterPath();
offset = (textWidth / 2.0) + Rez::guiX(2.0);
} else if (strcmp(balloonType, "Rectangle") == 0) {
//Add some room
textHeight = (textHeight * scale) + Rez::guiX(1.0);
if (balloonLabel->verticalSep) {
for (std::vector<int>::iterator it = balloonLabel->seps.begin() ; it != balloonLabel->seps.end(); ++it) {
balloonPath.moveTo(lblCenter.x - (textWidth / 2.0) + *it, lblCenter.y - (textHeight / 2.0));
balloonPath.lineTo(lblCenter.x - (textWidth / 2.0) + *it, lblCenter.y + (textHeight / 2.0));
}
}
textWidth = (textWidth * scale) + Rez::guiX(2.0);
balloonPath.addRect(lblCenter.x -(textWidth / 2.0), lblCenter.y - (textHeight / 2.0), textWidth, textHeight);
offset = (textWidth / 2.0);
} else if (strcmp(balloonType, "Triangle") == 0) {
double radius = sqrt(pow((textHeight / 2.0), 2) + pow((textWidth / 2.0), 2));
radius = radius * scale;
radius += Rez::guiX(3.0);
offset = (tan(30 * PI / 180) * radius);
QPolygonF triangle;
double startAngle = -PI / 2;
double angle = startAngle;
for (int i = 0; i < 4; i++) {
triangle += QPointF(lblCenter.x + (radius * cos(angle)), lblCenter.y + (radius * sin(angle)));
angle += (2 * PI / 3);
}
balloonPath.moveTo(lblCenter.x + (radius * cos(startAngle)), lblCenter.y + (radius * sin(startAngle)));
balloonPath.addPolygon(triangle);
} else if (strcmp(balloonType, "Inspection") == 0) {
//Add some room
textWidth = (textWidth * scale) + Rez::guiX(2.0);
textHeight = (textHeight * scale) + Rez::guiX(1.0);
QPointF textBoxCorner(lblCenter.x - (textWidth / 2.0), lblCenter.y - (textHeight / 2.0));
balloonPath.moveTo(textBoxCorner);
balloonPath.lineTo(textBoxCorner.x() + textWidth, textBoxCorner.y());
balloonPath.arcTo(textBoxCorner.x() + textWidth - (textHeight / 2.0), textBoxCorner.y(), textHeight, textHeight, 90, -180);
balloonPath.lineTo(textBoxCorner.x(), textBoxCorner.y() + textHeight);
balloonPath.arcTo(textBoxCorner.x() - (textHeight / 2), textBoxCorner.y(), textHeight, textHeight, -90, -180);
offset = (textWidth / 2.0) + (textHeight / 2.0);
} else if (strcmp(balloonType, "Square") == 0) {
//Add some room
textWidth = (textWidth * scale) + Rez::guiX(2.0);
textHeight = (textHeight * scale) + Rez::guiX(1.0);
double max = std::max(textWidth, textHeight);
balloonPath.addRect(lblCenter.x -(max / 2.0), lblCenter.y - (max / 2.0), max, max);
offset = (max / 2.0);
} else if (strcmp(balloonType, "Hexagon") == 0) {
double radius = sqrt(pow((textHeight / 2.0), 2) + pow((textWidth / 2.0), 2));
radius = radius * scale;
radius += Rez::guiX(1.0);
offset = radius;
QPolygonF triangle;
double startAngle = -2 * PI / 3;
double angle = startAngle;
for (int i = 0; i < 7; i++) {
triangle += QPointF(lblCenter.x + (radius * cos(angle)), lblCenter.y + (radius * sin(angle)));
angle += (2 * PI / 6);
}
balloonPath.moveTo(lblCenter.x + (radius * cos(startAngle)), lblCenter.y + (radius * sin(startAngle)));
balloonPath.addPolygon(triangle);
}
offset = (lblCenter.x < orginX) ? offset : -offset;
dLineStart.y = lblCenter.y;
dLineStart.x = lblCenter.x + offset;
kinkLength = (lblCenter.x < orginX) ? kinkLength : -kinkLength;
kinkPoint.y = dLineStart.y;
kinkPoint.x = dLineStart.x + kinkLength;
QPainterPath dLinePath;
dLinePath.moveTo(dLineStart.x, dLineStart.y);
dLinePath.lineTo(kinkPoint.x, kinkPoint.y);
if (modifier) {
balloon->OriginX.setValue(orginX + lblCenter.x - oldLabelCenter->x());
balloon->OriginY.setValue(orginY + lblCenter.y - oldLabelCenter->y());
}
orginX = balloon->OriginX.getValue();
orginY = balloon->OriginY.getValue();
dLinePath.lineTo(orginX, orginY);
oldLabelCenter->setX(lblCenter.x);
oldLabelCenter->setY(lblCenter.y);
balloonLines->setPath(dLinePath);
balloonShape->setPath(balloonPath);
const char *endType = balloon->EndType.getValueAsString();
if (strcmp(endType, "Arrow") == 0) {
arrow->setStyle(QGIArrow::getPrefArrowStyle());
} else if (strcmp(endType, "Dot") == 0) {
arrow->setStyle(3);
}
arrow->setSize(QGIArrow::getPrefArrowSize());
arrow->draw();
Base::Vector3d orign(orginX, orginY, 0.0);
Base::Vector3d dirballoonLinesLine = (orign - kinkPoint).Normalize();
float arAngle = atan2(dirballoonLinesLine.y, dirballoonLinesLine.x) * 180 / M_PI;
arrow->setPos(orginX, orginY);
arrow->setRotation(arAngle);
arrow->show();
// redraw the Dimension and the parent View
if (hasHover && !isSelected()) {
arrow->setPrettyPre();
balloonLines->setPrettyPre();
balloonShape->setPrettyPre();
} else if (isSelected()) {
arrow->setPrettySel();
balloonLines->setPrettySel();
balloonShape->setPrettySel();
} else {
arrow->setPrettyNormal();
balloonLines->setPrettyNormal();
balloonShape->setPrettyNormal();
}
update();
if (parentItem()) {
//TODO: parent redraw still required with new frame/label??
parentItem()->update();
} else {
Base::Console().Log("INFO - QGIVD::draw - no parent to update\n");
}
}
void QGIViewBalloon::drawBorder(void)
{
//Dimensions have no border!
// Base::Console().Message("TRACE - QGIViewDimension::drawBorder - doing nothing!\n");
}
QVariant QGIViewBalloon::itemChange(GraphicsItemChange change, const QVariant &value)
{
if (change == ItemSelectedHasChanged && scene()) {
if(isSelected()) {
balloonLabel->setSelected(true);
} else {
balloonLabel->setSelected(false);
}
draw();
}
return QGIView::itemChange(change, value);
}
void QGIViewBalloon::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget) {
QStyleOptionGraphicsItem myOption(*option);
myOption.state &= ~QStyle::State_Selected;
QPaintDevice* hw = painter->device();
QSvgGenerator* svg = dynamic_cast<QSvgGenerator*>(hw);
setPens();
//double balloonLinesSaveWidth = arrow->getWidth();
if (svg) {
setSvgPens();
} else {
setPens();
}
QGIView::paint (painter, &myOption, widget);
setPens();
}
void QGIViewBalloon::setSvgPens(void)
{
double svgLineFactor = 3.0; //magic number. should be a setting somewhere.
balloonLines->setWidth(m_lineWidth/svgLineFactor);
balloonShape->setWidth(m_lineWidth/svgLineFactor);
arrow->setWidth(arrow->getWidth()/svgLineFactor);
}
void QGIViewBalloon::setPens(void)
{
balloonLines->setWidth(m_lineWidth);
balloonShape->setWidth(m_lineWidth);
arrow->setWidth(m_lineWidth);
}
QColor QGIViewBalloon::getNormalColor()
{
Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
.GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Dimensions");
App::Color fcColor;
fcColor.setPackedValue(hGrp->GetUnsigned("Color", 0x00000000));
m_colNormal = fcColor.asValue<QColor>();
auto balloon( dynamic_cast<TechDraw::DrawViewBalloon*>(getViewObject()) );
if( balloon == nullptr )
return m_colNormal;
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return m_colNormal;
}
m_colNormal = vp->Color.getValue().asValue<QColor>();
return m_colNormal;
}
#include <Mod/TechDraw/Gui/moc_QGIViewBalloon.cpp>