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create/src/Mod/TechDraw/Gui/QGIViewBalloon.cpp
wmayer 008e97b929 TD: fix undo/redo for balloon objects 
* inside mouseReleaseEvent() check if the mouse has been moved and only if yes emit the dragFinished() signal
* improve error handling in mouseDoubleClickEvent
* in mouseDoubleClickEvent start to edit the view provider
2021-02-14 19:30:06 +01:00

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/***************************************************************************
* 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 <QDebug>
# include <QGraphicsScene>
# include <QGraphicsSceneMouseEvent>
# include <QPainter>
# include <QPainterPath>
# include <QPaintDevice>
# include <QSvgGenerator>
# include <QApplication>
# include <cmath>
#endif
#include <App/Application.h>
#include <App/Material.h>
#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/Parameter.h>
#include <Gui/Command.h>
#include <Gui/Tools.h>
#include <string>
#include <Mod/TechDraw/App/DrawPage.h>
#include <Mod/TechDraw/App/DrawViewBalloon.h>
#include <Mod/TechDraw/App/DrawViewPart.h>
#include <Mod/TechDraw/App/DrawView.h>
#include <Mod/TechDraw/App/DrawUtil.h>
#include <Mod/TechDraw/App/Geometry.h>
#include <Mod/TechDraw/App/ArrowPropEnum.h>
//#include <Mod/TechDraw/App/Preferences.h>
#include "Rez.h"
#include "ZVALUE.h"
#include "PreferencesGui.h"
#include "QGIArrow.h"
#include "QGIDimLines.h"
#include "QGIViewBalloon.h"
#include "ViewProviderBalloon.h"
#include "DrawGuiUtil.h"
#include "QGIViewPart.h"
#include "ViewProviderViewPart.h"
#include "QGIViewDimension.h"
#include "QGVPage.h"
#include "MDIViewPage.h"
//TODO: hide the Qt coord system (+y down).
using namespace TechDraw;
using namespace TechDrawGui;
QGIBalloonLabel::QGIBalloonLabel()
{
posX = 0;
posY = 0;
m_ctrl = false;
m_drag = false;
setCacheMode(QGraphicsItem::NoCache);
setFlag(ItemSendsGeometryChanges, true);
setFlag(ItemIsMovable, true);
setFlag(ItemIsSelectable, true);
setAcceptHoverEvents(true);
m_labelText = new QGCustomText();
m_labelText->setParentItem(this);
verticalSep = false;
hasHover = false;
parent = nullptr;
}
QVariant QGIBalloonLabel::itemChange(GraphicsItemChange change, const QVariant &value)
{
if (change == ItemSelectedHasChanged && scene()) {
if(isSelected()) {
Q_EMIT selected(true);
setPrettySel();
} else {
Q_EMIT selected(false);
setPrettyNormal();
}
update();
} else if(change == ItemPositionHasChanged && scene()) {
setLabelCenter();
if (m_drag) {
Q_EMIT dragging(m_ctrl);
}
}
return QGraphicsItem::itemChange(change, value);
}
void QGIBalloonLabel::mousePressEvent(QGraphicsSceneMouseEvent * event)
{
m_ctrl = false;
m_drag = true;
if(event->modifiers() & Qt::ControlModifier) {
m_ctrl = true;
}
QGraphicsItem::mousePressEvent(event);
}
void QGIBalloonLabel::mouseMoveEvent(QGraphicsSceneMouseEvent * event)
{
QGraphicsItem::mouseMoveEvent(event);
}
void QGIBalloonLabel::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
{
if (QLineF(event->screenPos(), event->buttonDownScreenPos(Qt::LeftButton))
.length() > 0) {
if (scene() && this == scene()->mouseGrabberItem()) {
Q_EMIT dragFinished();
}
}
m_ctrl = false;
m_drag = false;
QGraphicsItem::mouseReleaseEvent(event);
}
void QGIBalloonLabel::mouseDoubleClickEvent(QGraphicsSceneMouseEvent * event)
{
QGIViewBalloon* qgivBalloon = dynamic_cast<QGIViewBalloon*>(parentItem());
if (qgivBalloon == nullptr) {
qWarning() << "QGIBalloonLabel::mouseDoubleClickEvent: No parent item";
return;
}
auto ViewProvider = dynamic_cast<ViewProviderBalloon*>(qgivBalloon->getViewProvider(qgivBalloon->getViewObject()));
if (ViewProvider == nullptr) {
qWarning() << "QGIBalloonLabel::mouseDoubleClickEvent: No valid view provider";
return;
}
ViewProvider->startDefaultEditMode();
QGraphicsItem::mouseDoubleClickEvent(event);
}
void QGIBalloonLabel::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
Q_EMIT hover(true);
hasHover = true;
if (!isSelected()) {
setPrettyPre();
} else {
setPrettySel();
}
QGraphicsItem::hoverEnterEvent(event);
}
void QGIBalloonLabel::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
QGIView *view = dynamic_cast<QGIView *> (parentItem());
assert(view != 0);
Q_UNUSED(view);
Q_EMIT hover(false);
hasHover = false;
if (!isSelected()) {
setPrettyNormal();
} else {
setPrettySel();
}
QGraphicsItem::hoverLeaveEvent(event);
}
QRectF QGIBalloonLabel::boundingRect() const
{
return childrenBoundingRect();
}
void QGIBalloonLabel::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(widget);
Q_UNUSED(painter);
QStyleOptionGraphicsItem myOption(*option);
myOption.state &= ~QStyle::State_Selected;
//QGraphicsObject/QGraphicsItem::paint gives link error.
}
void QGIBalloonLabel::setPosFromCenter(const double &xCenter, const double &yCenter)
{
//set label's Qt position(top,left) given boundingRect center point
setPos(xCenter - m_labelText->boundingRect().width() / 2., yCenter - m_labelText->boundingRect().height() / 2.);
}
void QGIBalloonLabel::setLabelCenter()
{
//save label's bRect center (posX,posY) given Qt position (top,left)
posX = x() + m_labelText->boundingRect().width() / 2.;
posY = y() + m_labelText->boundingRect().height() / 2.;
}
void QGIBalloonLabel::setFont(QFont f)
{
m_labelText->setFont(f);
}
void QGIBalloonLabel::setDimString(QString t)
{
prepareGeometryChange();
m_labelText->setPlainText(t);
}
void QGIBalloonLabel::setDimString(QString t, qreal maxWidth)
{
prepareGeometryChange();
m_labelText->setPlainText(t);
m_labelText->setTextWidth(maxWidth);
}
void QGIBalloonLabel::setPrettySel(void)
{
m_labelText->setPrettySel();
}
void QGIBalloonLabel::setPrettyPre(void)
{
m_labelText->setPrettyPre();
}
void QGIBalloonLabel::setPrettyNormal(void)
{
m_labelText->setPrettyNormal();
}
void QGIBalloonLabel::setColor(QColor c)
{
m_colNormal = c;
m_labelText->setColor(m_colNormal);
}
//**************************************************************
QGIViewBalloon::QGIViewBalloon() :
dvBalloon(nullptr),
hasHover(false),
m_lineWidth(0.0),
m_obtuse(false),
parent(nullptr),
m_dragInProgress(false)
{
m_ctrl = false;
setHandlesChildEvents(false);
setFlag(QGraphicsItem::ItemIsMovable, false);
setCacheMode(QGraphicsItem::NoCache);
balloonLabel = new QGIBalloonLabel();
balloonLabel->parent = this;
addToGroup(balloonLabel);
balloonLabel->setColor(getNormalColor());
balloonLabel->setPrettyNormal();
balloonLines = new QGIDimLines();
addToGroup(balloonLines);
balloonLines->setNormalColor(getNormalColor());
balloonLines->setPrettyNormal();
balloonShape = new QGIDimLines();
addToGroup(balloonShape);
balloonShape->setNormalColor(getNormalColor());
balloonShape->setFill(Qt::white, Qt::SolidPattern);
balloonShape->setFillOverride(true);
balloonShape->setPrettyNormal();
arrow = new QGIArrow();
addToGroup(arrow);
arrow->setNormalColor(getNormalColor());
arrow->setFillColor(getNormalColor());
arrow->setPrettyNormal();
arrow->setStyle(prefDefaultArrow());
balloonLabel->setZValue(ZVALUE::LABEL);
arrow->setZValue(ZVALUE::DIMENSION);
balloonLines->setZValue(ZVALUE::DIMENSION);
balloonLines->setStyle(Qt::SolidLine);
balloonShape->setZValue(ZVALUE::DIMENSION + 1); //above balloonLines!
balloonShape->setStyle(Qt::SolidLine);
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)));
setZValue(ZVALUE::DIMENSION);
}
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);
}
//Set selection state for this and it's children
void QGIViewBalloon::setGroupSelection(bool b)
{
// Base::Console().Message("QGIVB::setGroupSelection(%d)\n",b);
setSelected(b);
balloonLabel->setSelected(b);
balloonLines->setSelected(b);
arrow->setSelected(b);
}
void QGIViewBalloon::select(bool state)
{
// Base::Console().Message("QGIVBall::select(%d)\n", state);
setSelected(state);
draw();
}
void QGIViewBalloon::hover(bool state)
{
hasHover = state;
draw();
}
void QGIViewBalloon::setViewPartFeature(TechDraw::DrawViewBalloon *balloon)
{
// Base::Console().Message("QGIVB::setViewPartFeature()\n");
if(balloon == 0)
return;
setViewFeature(static_cast<TechDraw::DrawView *>(balloon));
DrawView* balloonParent = nullptr;
double scale = 1.0;
App::DocumentObject* docObj = balloon->SourceView.getValue();
if (docObj) {
balloonParent = dynamic_cast<DrawView*>(docObj);
if (balloonParent)
scale = balloonParent->getScale();
}
float x = Rez::guiX(balloon->X.getValue() * scale) ;
float y = Rez::guiX(-balloon->Y.getValue() * scale);
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();
}
//from ViewProviderDrawingView::updateData (X or Y)
void QGIViewBalloon::updateView(bool update)
{
// Base::Console().Message("QGIVB::updateView()\n");
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());
balloonLines->setNormalColor(getNormalColor());
balloonShape->setNormalColor(getNormalColor());
arrow->setNormalColor(getNormalColor());
arrow->setFillColor(getNormalColor());
}
updateBalloon();
draw();
}
//update the bubble contents
void QGIViewBalloon::updateBalloon(bool obtuse)
{
// Base::Console().Message("QGIVB::updateBalloon()\n");
(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;
}
const TechDraw::DrawViewPart *refObj = balloon->getViewPart();
if (refObj == nullptr) {
return;
}
QFont font = balloonLabel->getFont();
font.setPixelSize(calculateFontPixelSize(vp->Fontsize.getValue()));
font.setFamily(QString::fromUtf8(vp->Font.getValue()));
balloonLabel->setFont(font);
QString labelText = QString::fromUtf8(balloon->Text.getStrValue().data());
balloonLabel->verticalSep = false;
balloonLabel->seps.clear();
if (strcmp(balloon->BubbleShape.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(Gui::QtTools::horizontalAdvance(fm, labelText.left(pos + 2)));
balloonLabel->verticalSep = true;
}
}
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
float x = Rez::guiX(balloon->X.getValue() * refObj->getScale());
float y = Rez::guiX(balloon->Y.getValue() * refObj->getScale());
balloonLabel->setPosFromCenter(x, -y);
}
void QGIViewBalloon::balloonLabelDragged(bool ctrl)
{
// Base::Console().Message("QGIVB::bLabelDragged(%d)\n", ctrl);
m_ctrl = ctrl;
auto dvb( dynamic_cast<TechDraw::DrawViewBalloon *>(getViewObject()) );
if (dvb == nullptr)
return;
if (!m_dragInProgress) { //first drag movement
m_dragInProgress = true;
if (ctrl) { //moving whole thing, remember Origin offset from Bubble
m_saveOffset = dvb->getOriginOffset();
}
}
double scale = 1.0;
DrawView* balloonParent = getSourceView();
if (balloonParent != nullptr) {
scale = balloonParent->getScale();
}
//set feature position (x,y) from graphic position
double x = Rez::appX(balloonLabel->X() / scale),
y = Rez::appX(balloonLabel->Y() / scale);
Gui::Command::openCommand(QT_TRANSLATE_NOOP("Command", "Drag Balloon"));
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.X = %f", dvb->getNameInDocument(), x);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Y = %f", dvb->getNameInDocument(), -y);
//if origin is also moving, calc new origin and update feature
if (ctrl) {
Base::Vector3d pos(x, -y, 0.0);
Base::Vector3d newOrg = pos - m_saveOffset;
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.OriginX = %f",
dvb->getNameInDocument(), newOrg.x);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.OriginY = %f",
dvb->getNameInDocument(), newOrg.y);
}
Gui::Command::commitCommand();
}
void QGIViewBalloon::balloonLabelDragFinished()
{
//really nothing to do here. position has been update by drag already
m_dragInProgress = false;
}
//from QGVP::mouseReleaseEvent - pos = eventPos in scene coords?
void QGIViewBalloon::placeBalloon(QPointF pos)
{
// Base::Console().Message("QGIVB::placeBalloon(%s)\n",
// DrawUtil::formatVector(pos).c_str());
auto balloon( dynamic_cast<TechDraw::DrawViewBalloon*>(getViewObject()) );
if( balloon == nullptr ) {
return;
}
DrawView* balloonParent = dynamic_cast<DrawView*>(balloon->SourceView.getValue());
if (balloonParent == nullptr) {
return;
}
auto featPage = balloonParent->findParentPage();
if (featPage == nullptr) {
return;
}
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
QGIView* qgivParent = nullptr;
QPointF viewPos;
Gui::ViewProvider* objVp = QGIView::getViewProvider(balloonParent);
auto partVP = dynamic_cast<ViewProviderViewPart*>(objVp);
if ( partVP != nullptr ) {
qgivParent = partVP->getQView();
if (qgivParent != nullptr) {
//tip position is mouse release pos in parentView coords ==> OriginX, OriginY
//bubble pos is some arbitrary shift from tip position ==> X,Y
viewPos = qgivParent->mapFromScene(pos);
balloon->OriginX.setValue(Rez::appX(viewPos.x()) / balloonParent->getScale());
balloon->OriginY.setValue(-Rez::appX(viewPos.y()) / balloonParent->getScale());
balloon->X.setValue(Rez::appX((viewPos.x() + 200.0) / balloonParent->getScale() ));
balloon->Y.setValue(- Rez::appX((viewPos.y() - 200.0) / balloonParent->getScale() ));
}
}
int idx = featPage->getNextBalloonIndex();
QString labelText = QString::number(idx);
balloon->Text.setValue(std::to_string(idx).c_str());
QFont font = balloonLabel->getFont();
font.setPixelSize(calculateFontPixelSize(vp->Fontsize.getValue()));
font.setFamily(QString::fromUtf8(vp->Font.getValue()));
balloonLabel->setFont(font);
prepareGeometryChange();
// Default label position
balloonLabel->setPosFromCenter(viewPos.x() + 200, viewPos.y() - 200);
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
draw();
}
void QGIViewBalloon::draw()
{
// Base::Console().Message("QGIVB::draw()\n");
if (!isVisible()) {
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;
}
balloonLabel->show();
show();
const TechDraw::DrawViewPart *refObj = balloon->getViewPart();
if (refObj == nullptr) {
return;
}
if(!refObj->hasGeometry()) { //nothing to draw yet (restoring)
balloonLabel->hide();
hide();
return;
}
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
m_lineWidth = Rez::guiX(vp->LineWidth.getValue());
double textWidth = balloonLabel->getDimText()->boundingRect().width();
double textHeight = balloonLabel->getDimText()->boundingRect().height();
float x = Rez::guiX(balloon->X.getValue() * refObj->getScale());
float y = Rez::guiX(balloon->Y.getValue() * refObj->getScale());
Base::Vector3d lblCenter(x, -y, 0.0);
float arrowTipX = Rez::guiX(balloon->OriginX.getValue() * refObj->getScale());
float arrowTipY = - Rez::guiX(balloon->OriginY.getValue() * refObj->getScale());
if (balloon->isLocked()) {
balloonLabel->setFlag(QGraphicsItem::ItemIsMovable, false);
} else
balloonLabel->setFlag(QGraphicsItem::ItemIsMovable, true);
Base::Vector3d dLineStart;
Base::Vector3d kinkPoint;
double kinkLength = Rez::guiX(balloon->KinkLength.getValue());
const char *balloonType = balloon->BubbleShape.getValueAsString();
float scale = balloon->ShapeScale.getValue();
double offsetLR = 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);
offsetLR = balloonRadius;
} else if (strcmp(balloonType, "None") == 0) {
balloonPath = QPainterPath();
offsetLR = (textWidth / 2.0) + Rez::guiX(2.0);
} else if (strcmp(balloonType, "Rectangle") == 0) {
//Add some room
textHeight = (textHeight * scale) + Rez::guiX(1.0);
// we add some textWidth later because we first need to handle the text separators
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);
offsetLR = (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);
offsetLR = (tan(30 * M_PI / 180) * radius);
QPolygonF triangle;
double startAngle = -M_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 * M_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);
offsetLR = (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);
offsetLR = (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);
offsetLR = radius;
QPolygonF triangle;
double startAngle = -2 * M_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 * M_PI / 6);
}
balloonPath.moveTo(lblCenter.x + (radius * cos(startAngle)), lblCenter.y + (radius * sin(startAngle)));
balloonPath.addPolygon(triangle);
}
balloonShape->setPath(balloonPath);
offsetLR = (lblCenter.x < arrowTipX) ? offsetLR : -offsetLR ;
if (DrawUtil::fpCompare(kinkLength, 0.0)) { //if no kink, then dLine start sb on line from center to arrow
dLineStart = lblCenter;
kinkPoint = dLineStart;
} else {
dLineStart.y = lblCenter.y;
dLineStart.x = lblCenter.x + offsetLR ;
kinkLength = (lblCenter.x < arrowTipX) ? 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);
double xAdj = 0.0;
double yAdj = 0.0;
int endType = balloon->EndType.getValue();
double arrowAdj = QGIArrow::getOverlapAdjust(endType,
balloon->EndTypeScale.getValue()*QGIArrow::getPrefArrowSize());
if (endType == ArrowType::NONE) {
arrow->hide();
} else {
arrow->setStyle(endType);
arrow->setSize(balloon->EndTypeScale.getValue()*QGIArrow::getPrefArrowSize());
arrow->draw();
Base::Vector3d arrowTipPos(arrowTipX, arrowTipY, 0.0);
Base::Vector3d dirballoonLinesLine;
if (!DrawUtil::fpCompare(kinkLength, 0.0)) {
dirballoonLinesLine = (arrowTipPos - kinkPoint).Normalize();
} else {
dirballoonLinesLine = (arrowTipPos - dLineStart).Normalize();
}
float arAngle = atan2(dirballoonLinesLine.y, dirballoonLinesLine.x) * 180 / M_PI;
arrow->setPos(arrowTipX, arrowTipY);
if ( (endType == ArrowType::FILLED_TRIANGLE) &&
(prefOrthoPyramid()) ) {
if (arAngle < 0.0) {
arAngle += 360.0;
}
//set the angle to closest cardinal direction
if ( (45.0 < arAngle) && (arAngle < 135.0) ) {
arAngle = 90.0;
} else if ( (135.0 < arAngle) && (arAngle < 225.0) ) {
arAngle = 180.0;
} else if ( (225.0 < arAngle) && (arAngle < 315.0) ) {
arAngle = 270.0;
} else {
arAngle = 0;
}
double radAngle = arAngle * M_PI / 180.0;
double sinAngle = sin(radAngle);
double cosAngle = cos(radAngle);
xAdj = Rez::guiX(arrowAdj * cosAngle);
yAdj = Rez::guiX(arrowAdj * sinAngle);
}
arrow->setRotation(arAngle);
arrow->show();
}
dLinePath.lineTo(arrowTipX - xAdj, arrowTipY - yAdj);
balloonLines->setPath(dLinePath);
// This overwrites the previously created QPainterPath with empty one, in case it should be hidden. Should be refactored.
if (!vp->LineVisible.getValue()) {
arrow->hide();
balloonLines->setPath(QPainterPath());
}
// redraw the Balloon and the parent View
if (hasHover && !isSelected()) {
setPrettyPre();
} else if (isSelected()) {
setPrettySel();
} else {
setPrettyNormal();
}
if (parentItem()) {
parentItem()->update();
} else {
Base::Console().Log("INFO - QGIVB::draw - no parent to update\n");
}
}
void QGIViewBalloon::setPrettyPre(void)
{
arrow->setPrettyPre();
//TODO: primPath needs override for fill
//balloonShape->setFillOverride(true); //don't fill with pre or select colours.
// balloonShape->setFill(Qt::white, Qt::NoBrush);
balloonShape->setPrettyPre();
balloonLines->setPrettyPre();
}
void QGIViewBalloon::setPrettySel(void)
{
// Base::Console().Message("QGIVBal::setPrettySel()\n");
arrow->setPrettySel();
// balloonShape->setFill(Qt::white, Qt::NoBrush);
balloonShape->setPrettySel();
balloonLines->setPrettySel();
}
void QGIViewBalloon::setPrettyNormal(void)
{
arrow->setPrettyNormal();
// balloonShape->setFill(Qt::white, Qt::SolidPattern);
balloonShape->setPrettyNormal();
balloonLines->setPrettyNormal();
}
void QGIViewBalloon::drawBorder(void)
{
//Dimensions have no border!
// Base::Console().Message("TRACE - QGIViewDimension::drawBorder - doing nothing!\n");
}
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();
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()
{
m_colNormal = PreferencesGui::dimQColor();
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;
}
int QGIViewBalloon::prefDefaultArrow() const
{
return Preferences::balloonArrow();
}
//should this be an object property or global preference?
//when would you want a crooked pyramid?
bool QGIViewBalloon::prefOrthoPyramid() const
{
Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
.GetGroup("BaseApp")->GetGroup("Preferences")->
GetGroup("Mod/TechDraw/Decorations");
bool ortho = hGrp->GetBool("PyramidOrtho", true);
return ortho;
}
DrawView* QGIViewBalloon::getSourceView() const
{
DrawView* balloonParent = nullptr;
App::DocumentObject* docObj = getViewObject();
DrawViewBalloon* dvb = dynamic_cast<DrawViewBalloon*>(docObj);
if (dvb != nullptr) {
balloonParent = dynamic_cast<DrawView*>(dvb->SourceView.getValue());
}
return balloonParent;
}
#include <Mod/TechDraw/Gui/moc_QGIViewBalloon.cpp>
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