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7c6e58fb50645a5fa4454067175b22430e8c2cd1
create/src/Mod/TechDraw/Gui/QGSPage.cpp
wandererfan 7c6e58fb50 [TD]fix weld symbol not attached to leader
2025-08-13 22:46:20 +02:00

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/***************************************************************************
* Copyright (c) 2020 Wanderer Fan <wandererfan@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 <QApplication>
#include <QDomDocument>
#include <QFile>
#include <QGraphicsSceneEvent>
#include <QPainter>
#include <QSvgGenerator>
#include <QTemporaryFile>
#include <QTextStream>
#endif
#include <App/Document.h>
#include <Base/Console.h>
#include <Base/Parameter.h>
#include <Base/Tools.h>
#include <Gui/Command.h>
#include <Gui/Document.h>
#include <Gui/Selection/Selection.h>
#include <Mod/TechDraw/App/DrawHatch.h>
#include <Mod/TechDraw/App/DrawLeaderLine.h>
#include <Mod/TechDraw/App/DrawPage.h>
#include <Mod/TechDraw/App/DrawParametricTemplate.h>
#include <Mod/TechDraw/App/DrawProjGroup.h>
#include <Mod/TechDraw/App/DrawRichAnno.h>
#include <Mod/TechDraw/App/DrawSVGTemplate.h>
#include <Mod/TechDraw/App/DrawTemplate.h>
#include <Mod/TechDraw/App/DrawUtil.h>
#include <Mod/TechDraw/App/DrawViewAnnotation.h>
#include <Mod/TechDraw/App/DrawViewBalloon.h>
#include <Mod/TechDraw/App/DrawViewClip.h>
#include <Mod/TechDraw/App/DrawViewCollection.h>
#include <Mod/TechDraw/App/DrawViewDimension.h>
#include <Mod/TechDraw/App/DrawViewImage.h>
#include <Mod/TechDraw/App/DrawViewPart.h>
#include <Mod/TechDraw/App/DrawViewSection.h>
#include <Mod/TechDraw/App/DrawViewSpreadsheet.h>
#include <Mod/TechDraw/App/DrawViewSymbol.h>
#include <Mod/TechDraw/App/DrawWeldSymbol.h>
#include <Mod/TechDraw/App/Preferences.h>
#include "QGIDrawingTemplate.h"
#include "QGILeaderLine.h"
#include "QGIProjGroup.h"
#include "QGIRichAnno.h"
#include "QGISVGTemplate.h"
#include "QGITemplate.h"
#include "QGIUserTypes.h"
#include "QGIViewAnnotation.h"
#include "QGIViewBalloon.h"
#include "QGIViewClip.h"
#include "QGIViewCollection.h"
#include "QGIViewDimension.h"
#include "QGIViewImage.h"
#include "QGIViewPart.h"
#include "QGIViewSection.h"
#include "QGIViewSpreadsheet.h"
#include "QGIViewSymbol.h"
#include "QGIWeldSymbol.h"
#include "QGSPage.h"
#include "Rez.h"
#include "ViewProviderDrawingView.h"
#include "ViewProviderPage.h"
#include "ZVALUE.h"
#include "PreferencesGui.h"
// used SVG namespaces
#define CC_NS_URI "http://creativecommons.org/ns#"
#define DC_NS_URI "http://purl.org/dc/elements/1.1/"
#define RDF_NS_URI "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
#define INKSCAPE_NS_URI "http://www.inkscape.org/namespaces/inkscape"
#define SODIPODI_NS_URI "http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
using namespace Gui;
using namespace TechDraw;
using namespace TechDrawGui;
using DU = DrawUtil;
QGSPage::QGSPage(ViewProviderPage* vpPage, QWidget* parent)
: QGraphicsScene(parent), pageTemplate(nullptr), m_vpPage(nullptr)
{
assert(vpPage);
m_vpPage = vpPage;
setItemIndexMethod(QGraphicsScene::BspTreeIndex);//the default
}
void QGSPage::mousePressEvent(QGraphicsSceneMouseEvent * event)
{
Qt::KeyboardModifiers originalModifiers = event->modifiers();
auto itemUnderMouse = itemAt(event->scenePos().x(), event->scenePos().y(), QTransform());
if (!itemUnderMouse ||
itemClearsSelection(itemUnderMouse->type()) ) {
Gui::Selection().clearSelection();
QGraphicsScene::mousePressEvent(event);
return;
}
if (event->button() == Qt::LeftButton &&
PreferencesGui::multiSelection() &&
(cleanModifierList(QApplication::keyboardModifiers()) == Preferences::multiselectModifiers()) ) {
event->setModifiers(originalModifiers | Preferences::multiselectModifiers());
}
QGraphicsScene::mousePressEvent(event);
}
//! returns true if clicking on the item should clear the selection
bool QGSPage::itemClearsSelection(int itemTypeIn)
{
// type 13 is the itemUnderMouse on a page outside of any views. It is not
// the template or background or foreground. QGraphicsItem type = 13 is not
// documented and not found in QGraphicsItem.h.
const std::vector<int> ClearingTypes {
13, // MysteryType
UserType::QGITemplate,
UserType::QGIDrawingTemplate,
UserType::QGISVGTemplate
};
for (auto& type : ClearingTypes) {
if (itemTypeIn == type) {
return true;
}
}
return false;
}
//! return only the modifiers that are relevant to snapping/balloon drag.
//! this is a substitute for !modifiers (ie no modifiers in use) since keypad or group modifiers
//! (which don't apply to snapping/dragging) would give a misleading result.
Qt::KeyboardModifiers QGSPage::cleanModifierList(Qt::KeyboardModifiers mods)
{
if (!mods) {
return mods;
}
// remove misleading modifiers if present
auto newMods = mods;
if (newMods & Qt::KeypadModifier) {
newMods = newMods & ~Qt::KeypadModifier;
}
if (newMods & Qt::GroupSwitchModifier) {
newMods = newMods & ~Qt::GroupSwitchModifier;
}
return newMods;
}
void QGSPage::addChildrenToPage()
{
// A fresh page is added and we iterate through its collected children and add these to Canvas View -MLP
// if docobj is a featureviewcollection (ex orthogroup), add its child views. if there are ever children that have children,
// we'll have to make this recursive. -WF
for (auto* view : m_vpPage->getDrawPage()->getViews()) {
attachView(view);
auto* collect = dynamic_cast<TechDraw::DrawViewCollection*>(view);
if (collect) {
for (auto* childView : collect->getViews()) {
attachView(childView);
}
}
}
// when restoring, it is possible for an item (ex a Dimension) to be loaded before the ViewPart
// it applies to therefore we need to make sure parentage of the graphics representation is set
// properly. bit of a kludge.
//
setViewParents();
App::DocumentObject* obj = m_vpPage->getDrawPage()->Template.getValue();
auto pageTemplate(dynamic_cast<TechDraw::DrawTemplate*>(obj));
if (pageTemplate) {
attachTemplate(pageTemplate);
matchSceneRectToTemplate();
}
}
//********** template related routines *********
void QGSPage::attachTemplate(TechDraw::DrawTemplate* obj)
{
// Base::Console().message("QGSP::attachTemplate()\n");
setPageTemplate(obj);
}
void QGSPage::updateTemplate(bool forceUpdate)
{
App::DocumentObject* templObj = m_vpPage->getDrawPage()->Template.getValue();
// TODO: what if template has been deleted? templObj will be NULL. segfault?
if (!templObj) {
return;
}
if (m_vpPage->getDrawPage()->Template.isTouched() || templObj->isTouched()) {
// Template is touched so update
if (forceUpdate
|| (templObj && templObj->isTouched()
&& templObj->isDerivedFrom<TechDraw::DrawTemplate>())) {
QGITemplate* qItemTemplate = getTemplate();
if (qItemTemplate) {
TechDraw::DrawTemplate* pageTemplate =
dynamic_cast<TechDraw::DrawTemplate*>(templObj);
qItemTemplate->setTemplate(pageTemplate);
qItemTemplate->updateView();
}
}
}
}
QPointF QGSPage::getTemplateCenter()
{
App::DocumentObject* obj = m_vpPage->getDrawPage()->Template.getValue();
auto pageTemplate(dynamic_cast<TechDraw::DrawTemplate*>(obj));
if (pageTemplate) {
double cx = Rez::guiX(pageTemplate->Width.getValue()) / 2.0;
double cy = -Rez::guiX(pageTemplate->Height.getValue()) / 2.0;
return QPointF(cx, cy);
}
return QPointF(0.0, 0.0);
}
void QGSPage::matchSceneRectToTemplate()
{
App::DocumentObject* obj = m_vpPage->getDrawPage()->Template.getValue();
auto pageTemplate(dynamic_cast<TechDraw::DrawTemplate*>(obj));
if (pageTemplate) {
//make sceneRect 1 pagesize bigger in every direction
double width = Rez::guiX(pageTemplate->Width.getValue());
double height = Rez::guiX(pageTemplate->Height.getValue());
setSceneRect(QRectF(-width, -2.0 * height, 3.0 * width, 3.0 * height));
}
}
void QGSPage::setPageTemplate(TechDraw::DrawTemplate* templateFeat)
{
removeTemplate();
if (templateFeat->isDerivedFrom<TechDraw::DrawParametricTemplate>()) {
pageTemplate = new QGIDrawingTemplate(this);
}
else if (templateFeat->isDerivedFrom<TechDraw::DrawSVGTemplate>()) {
pageTemplate = new QGISVGTemplate(this);
}
pageTemplate->setTemplate(templateFeat);
pageTemplate->updateView();
}
QGITemplate* QGSPage::getTemplate() const { return pageTemplate; }
void QGSPage::removeTemplate()
{
if (pageTemplate) {
removeItem(pageTemplate);
pageTemplate->deleteLater();
pageTemplate = nullptr;
}
}
//******* QGIView related routines
//! retrieve the QGIView objects currently in the scene
std::vector<QGIView*> QGSPage::getViews() const
{
std::vector<QGIView*> result;
QList<QGraphicsItem*> items = this->items();
for (auto& v : items) {
QGIView* qv = dynamic_cast<QGIView*>(v);
if (qv) {
result.push_back(qv);
}
}
return result;
}
int QGSPage::addQView(QGIView* view)
{
QGIView* existing = getQGIVByName(view->getViewName());
if (!existing) { //don't add twice!
addItem(view);
TechDraw::DrawView *viewObj = view->getViewObject();
// Preserve the desired position, as addToGroup() adjusts the child view's position
QPointF viewPos(Rez::guiX(viewObj->X.getValue()), -Rez::guiX(viewObj->Y.getValue()));
// Find if it belongs to a parent
QGIView *parent = findParent(view);
if (parent) {
parent->addToGroup(view);
}
view->setPos(viewPos);
auto viewProvider = dynamic_cast<ViewProviderDrawingView *>(QGIView::getViewProvider(viewObj));
if (viewProvider) {
view->setZValue(viewProvider->StackOrder.getValue());
}
view->updateView(true);
} else {
Base::Console().message("QGSP::addQView - qview already exists\n");
}
return 0;
}
int QGSPage::removeQView(QGIView* view)
{
if (view) {
removeQViewFromScene(view);
delete view;
}
return 0;
}
int QGSPage::removeQViewByName(const char* name)
{
std::vector<QGIView*> items = getViews();
QString qsName = QString::fromUtf8(name);
bool found = false;
QGIView* ourItem = nullptr;
for (auto& i : items) {
if (qsName == i->data(1).toString()) {//is there a QGIV with this name in scene?
found = true;
ourItem = i;
break;
}
}
if (found) {
if (ourItem->type() == UserType::QGIViewBalloon) {
QGIViewBalloon* balloon = dynamic_cast<QGIViewBalloon*>(ourItem);
balloon->disconnect();
}
removeQViewFromScene(ourItem);
delete ourItem;//commenting this prevents crash but means a small memory waste.
//alternate fix(?) is to change indexing/caching option in scene/view
}
return 0;
}
void QGSPage::removeQViewFromScene(QGIView* view)
{
QGIView* qgParent = dynamic_cast<QGIView*>(view->parentItem());
if (qgParent) {
qgParent->removeChild(view);
}
else {
removeItem(view);
}
}
bool QGSPage::addView(const App::DocumentObject* obj)
{
return attachView(const_cast<App::DocumentObject*>(obj));
}
bool QGSPage::attachView(App::DocumentObject* obj)
{
if (findQViewForDocObj(obj)) {
return true;
}
QGIView* qview(nullptr);
if (auto o = freecad_cast<TechDraw::DrawViewSection*>(obj)) {
qview = addViewSection(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewPart*>(obj)) {
qview = addViewPart(o);
}
else if (auto o = freecad_cast<TechDraw::DrawProjGroup*>(obj)) {
qview = addProjectionGroup(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewCollection*>(obj)) {
qview = addDrawView(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewDimension*>(obj)) {
qview = addViewDimension(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewBalloon*>(obj)) {
qview = addViewBalloon(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewAnnotation*>(obj)) {
qview = addAnnotation(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewSpreadsheet*>(obj)) {
// has to be before DrawViewSymbol since it's a subclass of it.
qview = addDrawViewSpreadsheet(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewSymbol*>(obj)) {
qview = addDrawViewSymbol(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewClip*>(obj)) {
qview = addDrawViewClip(o);
}
else if (auto o = freecad_cast<TechDraw::DrawViewImage*>(obj)) {
qview = addDrawViewImage(o);
}
else if (auto o = freecad_cast<TechDraw::DrawLeaderLine*>(obj)) {
qview = addViewLeader(o);
}
else if (auto o = freecad_cast<TechDraw::DrawRichAnno*>(obj)) {
qview = addRichAnno(o);
}
else if (auto o = freecad_cast<TechDraw::DrawWeldSymbol*>(obj)) {
qview = addWeldSymbol(o);
}
else if (freecad_cast<TechDraw::DrawHatch*>(obj)) {
//Hatch is not attached like other Views (since it isn't really a View)
return true;
}
return (qview != nullptr);
}
void QGSPage::addItemToScene(QGIView* item)
{
addItem(item);
// Does item belong to a parent?
QGIView* parent = nullptr;
parent = findParent(item);
if (parent) {
addItemToParent(item, parent);
}
}
//! adds item to parent's group with position adjustments if required.
void QGSPage::addItemToParent(QGIView* item, QGIView* parent)
{
// not every view uses the same remapping?? spreadsheets, image, RTA, anno?
// anything that was originally designed to have its position
// defined relative to the Page should not use the dimension/balloon mapping.
assert(item);
assert(parent);
// original parenting logic here
QPointF posRef(0., 0.);
if (item->type() == UserType::QGIViewDimension ||
item->type() == UserType::QGIViewBalloon) {
QPointF mapPos = item->mapToItem(parent, posRef);
item->moveBy(-mapPos.x(), -mapPos.y());
parent->addToGroup(item);
return;
}
// positioning logic for objects (leader/rta/etc) that normally draw relative to the page goes
// here
//
QPointF itemPosition {item->getViewObject()->X.getValue(), // millimetres on page
-item->getViewObject()->Y.getValue()};
parent->addToGroup(item);
item->setPos(Rez::guiX(itemPosition));
item->setZValue(ZVALUE::DIMENSION);
}
QGIView* QGSPage::addViewPart(TechDraw::DrawViewPart* partFeat)
{
auto viewPart(new QGIViewPart);
addItem(viewPart);
viewPart->setViewPartFeature(partFeat);
// we need to install an event filter for any views derived from DrawViewPart
viewPart->installSceneEventFilter(viewPart);
return viewPart;
}
QGIView* QGSPage::addViewSection(DrawViewSection* sectionFeat)
{
auto viewSection(new QGIViewSection);
addItem(viewSection);
viewSection->setViewPartFeature(sectionFeat);
viewSection->installSceneEventFilter(viewSection);
return viewSection;
}
QGIView* QGSPage::addProjectionGroup(TechDraw::DrawProjGroup* projGroupFeat)
{
auto qview(new QGIProjGroup);
addItem(qview);
qview->setViewFeature(projGroupFeat);
qview->installSceneEventFilter(qview);
return qview;
}
QGIView* QGSPage::addDrawView(TechDraw::DrawView* view)
{
auto qview(new QGIView);
addItem(qview);
qview->setViewFeature(view);
return qview;
}
QGIView* QGSPage::addDrawViewCollection(TechDraw::DrawViewCollection* collectionFeat)
{
auto qview(new QGIViewCollection);
addItem(qview);
qview->setViewFeature(collectionFeat);
return qview;
}
QGIView* QGSPage::addAnnotation(TechDraw::DrawViewAnnotation* annoFeat)
{
auto annoView{new QGIViewAnnotation};
annoView->setViewFeature(annoFeat);
annoView->setZValue(ZVALUE::ANNOTATION);
addItemToScene(annoView);
return annoView;
}
QGIView* QGSPage::addDrawViewSymbol(TechDraw::DrawViewSymbol* symbolFeat)
{
QGIViewSymbol *symbolView = new QGIViewSymbol;
symbolView->setViewFeature(symbolFeat);
addItemToScene(symbolView);
return symbolView;
}
QGIView* QGSPage::addDrawViewClip(TechDraw::DrawViewClip* view)
{
auto qview(new QGIViewClip);
qview->setViewFeature(view);
addItemToScene(qview);
qview->setPosition(Rez::guiX(view->X.getValue()), Rez::guiX(view->Y.getValue()));
return qview;
}
QGIView* QGSPage::addDrawViewSpreadsheet(TechDraw::DrawViewSpreadsheet* sheetFeat)
{
auto qview(new QGIViewSpreadsheet);
qview->setViewFeature(sheetFeat);
addItemToScene(qview);
return qview;
}
QGIView* QGSPage::addDrawViewImage(TechDraw::DrawViewImage* imageFeat)
{
auto qview(new QGIViewImage);
qview->setViewFeature(imageFeat);
addItemToScene(qview);
return qview;
}
QGIView* QGSPage::addViewBalloon(TechDraw::DrawViewBalloon* balloonFeat)
{
auto vBalloon(new QGIViewBalloon);
vBalloon->setViewPartFeature(balloonFeat);
addItemToScene(vBalloon);
return vBalloon;
}
void QGSPage::addBalloonToParent(QGIViewBalloon* balloon, QGIView* parent)
{
assert(balloon);
assert(parent);//blow up if we don't have Dimension or Parent
QPointF posRef(0., 0.);
QPointF mapPos = balloon->mapToItem(parent, posRef);
balloon->moveBy(-mapPos.x(), -mapPos.y());
parent->addToGroup(balloon);
balloon->setZValue(ZVALUE::DIMENSION);
}
// origin is in scene coordinates from QGVPage widget
void QGSPage::createBalloon(QPointF origin, DrawView* parent)
{
std::string featName = getDrawPage()->getDocument()->getUniqueObjectName("Balloon");
std::string pageName = getDrawPage()->getNameInDocument();
Gui::Command::openCommand(QT_TRANSLATE_NOOP("Command", "Create Balloon"));
Command::doCommand(Command::Doc,
"App.activeDocument().addObject('TechDraw::DrawViewBalloon', '%s')",
featName.c_str());
Command::doCommand(Command::Doc, "App.activeDocument().%s.translateLabel('DrawViewBalloon', 'Balloon', '%s')",
featName.c_str(), featName.c_str());
TechDraw::DrawViewBalloon* balloon = dynamic_cast<TechDraw::DrawViewBalloon*>(
getDrawPage()->getDocument()->getObject(featName.c_str()));
if (!balloon) {
throw Base::TypeError("QGSP::createBalloon - balloon not found\n");
}
Command::doCommand(Command::Doc,
"App.activeDocument().%s.SourceView = (App.activeDocument().%s)",
featName.c_str(), parent->getNameInDocument());
// convert from scene coords to parent DrawView's coords, unscaled, unrotated
QGIView* qgParent = getQGIVByName(parent->getNameInDocument());
auto parentOrigin = DU::toVector3d(qgParent->mapFromScene(origin)); // from scene to view
parentOrigin = Rez::appX(parentOrigin) / parent->getScale(); // unrez & unscale
parentOrigin = DrawUtil::invertY(parentOrigin); // +Y up
auto parentRotationDeg = parent->Rotation.getValue();
parentOrigin.RotateZ(Base::toRadians(-parentRotationDeg)); // unrotated
balloon->setOrigin(parentOrigin);
double textOffset = 20.0 / parent->getScale();
balloon->setPosition(parentOrigin.x + textOffset,
parentOrigin.y + textOffset);
int idx = getDrawPage()->getNextBalloonIndex();
balloon->Text.setValue(std::to_string(idx).c_str());
Command::doCommand(Command::Doc, "App.activeDocument().%s.addView(App.activeDocument().%s)",
pageName.c_str(), featName.c_str());
Gui::Command::commitCommand();
// Touch the parent feature so the balloon in tree view appears as a child
parent->touch(true);
}
QGIView* QGSPage::addViewDimension(TechDraw::DrawViewDimension* dimFeat)
{
auto dimGroup(new QGIViewDimension);
dimGroup->setViewPartFeature(dimFeat);
addItemToScene(dimGroup);
return dimGroup;
}
void QGSPage::addDimToParent(QGIViewDimension* dim, QGIView* parent)
{
// Base::Console().message("QGSP::addDimToParent()\n");
assert(dim);
assert(parent);//blow up if we don't have Dimension or Parent
QPointF posRef(0., 0.);
QPointF mapPos = dim->mapToItem(parent, posRef);
dim->moveBy(-mapPos.x(), -mapPos.y());
parent->addToGroup(dim);
dim->setZValue(ZVALUE::DIMENSION);
}
QGIView* QGSPage::addViewLeader(TechDraw::DrawLeaderLine* leaderFeat)
{
QGILeaderLine *leaderItem = new QGILeaderLine;
leaderItem->setViewFeature(leaderFeat);
addItemToScene(leaderItem);
return leaderItem;
}
// TODO: can this be generalized? addViewToParent(childItem, parentItem, positionInParent)?
void QGSPage::addLeaderToParent(QGILeaderLine* leader, QGIView* parent)
{
assert(leader);
assert(parent);//blow up if we don't have Dimension or Parent
QPointF posRef(0., 0.);
QPointF parentOrigin = leader->mapToItem(parent, posRef);
QPointF leaderPositionInParent{ leader->getViewObject()->X.getValue(),
leader->getViewObject()->Y.getValue()};
QPointF moveToPosition = parentOrigin + leaderPositionInParent;
leader->moveBy(-moveToPosition.x(), -moveToPosition.y());
parent->addToGroup(leader);
leader->setZValue(ZVALUE::DIMENSION);
}
QGIView* QGSPage::addRichAnno(TechDraw::DrawRichAnno* richFeat)
{
auto richView = new QGIRichAnno;
richView->setViewFeature(richFeat);
addItemToScene(richView);
// Find if it belongs to a parent
QGIView* parent = nullptr;
parent = findParent(richView);
if (parent) {
addRichAnnoToParent(richView, parent);
}
return richView;
}
void QGSPage::addRichAnnoToParent(QGIRichAnno* anno, QGIView* parent)
{
assert(anno);
assert(parent);//blow up if we don't have Anno or Parent
QPointF posRef(0., 0.);
QPointF parentOrigin = anno->mapToItem(parent, posRef);
// this is not right for a DPGI? Needs the usual calculation??
QPointF annoPositionInParent{ anno->getViewObject()->X.getValue(),
anno->getViewObject()->Y.getValue()};
QPointF moveToPosition = parentOrigin + annoPositionInParent;
anno->moveBy(-moveToPosition.x(), -moveToPosition.y());
parent->addToGroup(anno);
anno->setZValue(ZVALUE::DIMENSION);
}
QGIView* QGSPage::addWeldSymbol(TechDraw::DrawWeldSymbol* weldFeat)
{
auto *weldQGItem = new QGIWeldSymbol;
weldQGItem->setViewFeature(weldFeat);
addItemToScene(weldQGItem);
return weldQGItem;
}
//! ensure that all QGIViews are parented correctly in the scene
void QGSPage::setViewParents()
{
const std::vector<QGIView*>& allItems = getViews();
for (auto& item : allItems) {
if (item->group()) {
// this item already has a parent in the scene. probably should check if it is the
// correct parent
continue;
}
QGIView* parent = findParent(item);
if (parent) {
// item has a parent, so make sure it belongs to parent's group
addItemToParent(item, parent);
}
}
}
//! find the graphic for a DocumentObject
QGIView* QGSPage::findQViewForDocObj(App::DocumentObject* obj) const
{
if (obj) {
const std::vector<QGIView*> qviews = getViews();
for (std::vector<QGIView*>::const_iterator it = qviews.begin(); it != qviews.end(); ++it) {
if (strcmp(obj->getNameInDocument(), (*it)->getViewName()) == 0)
return *it;
}
}
return nullptr;
}
//! find the graphic for DocumentObject with name
QGIView* QGSPage::getQGIVByName(std::string name) const
{
QList<QGraphicsItem*> qgItems = items();
QList<QGraphicsItem*>::iterator it = qgItems.begin();
for (; it != qgItems.end(); it++) {
QGIView* qv = dynamic_cast<QGIView*>((*it));
if (qv) {
const char* qvName = qv->getViewName();
if (name.compare(qvName) == 0) {
return (qv);
}
}
}
return nullptr;
}
//find the parent of a QGIV based on the corresponding feature's parentage
QGIView* QGSPage::findParent(QGIView* view) const
{
const std::vector<QGIView*> qviews = getViews();
TechDraw::DrawView* myFeat = view->getViewObject();
TechDraw::DrawView *ownerFeat = myFeat->claimParent();
if (ownerFeat) {
QGIView *ownerView = getQGIVByName(ownerFeat->getNameInDocument());
if (ownerView) {
return ownerView;
}
}
//If type is dimension we check references first
auto* dim = dynamic_cast<TechDraw::DrawViewDimension*>(myFeat);
if (dim) {
std::vector<App::DocumentObject*> objs = dim->References2D.getValues();
if (!objs.empty()) {
// Attach the dimension to the first object's group
for (auto* qview : qviews) {
if (strcmp(qview->getViewName(), objs.at(0)->getNameInDocument()) == 0) {
return qview;
}
}
}
}
//If type is balloon we check references first
auto* balloon = dynamic_cast<TechDraw::DrawViewBalloon*>(myFeat);
if (balloon) {
App::DocumentObject* obj = balloon->SourceView.getValue();
if (obj) {
// Attach the Balloon to the first object's group
for (auto* qview : qviews) {
if (strcmp(qview->getViewName(), obj->getNameInDocument()) == 0) {
return qview;
}
}
}
}
// Not found a parent
return nullptr;
}
bool QGSPage::hasQView(App::DocumentObject* obj)
{
const std::vector<QGIView*>& views = getViews();
std::vector<QGIView*>::const_iterator qview = views.begin();
while (qview != views.end()) {
// Unsure if we can compare pointers so rely on name
if (strcmp((*qview)->getViewName(), obj->getNameInDocument()) == 0) {
return true;
}
qview++;
}
return false;
}
void QGSPage::refreshViews()
{
QList<QGraphicsItem*> list = items();
QList<QGraphicsItem*> qgiv;
//find only QGIV's
for (auto q : list) {
QString viewFamily = QStringLiteral("QGIV");
if (viewFamily == q->data(0).toString()) {
qgiv.push_back(q);
}
}
for (auto q : qgiv) {
QGIView* itemView = dynamic_cast<QGIView*>(q);
if (itemView) {
itemView->updateView(true);
}
}
}
void QGSPage::findMissingViews(const std::vector<App::DocumentObject*>& list,
std::vector<App::DocumentObject*>& missing)
{
for (auto* obj : list) {
if (!hasQView(obj))
missing.push_back(obj);
if (obj->isDerivedFrom<TechDraw::DrawViewCollection>()) {
std::vector<App::DocumentObject*> missingChildViews;
auto* collection = static_cast<TechDraw::DrawViewCollection*>(obj);
// Find Child Views recursively
findMissingViews(collection->getViews(), missingChildViews);
// Append the views to current missing list
for (auto* missingChild : missingChildViews) {
missing.push_back(missingChild);
}
}
}
}
//this is time consuming. should only be used when there is a problem.
//Solve the situation where a DrawView belonging to this DrawPage has no QGraphicsItem in
//the QGScene for the DrawPage -or-
//a QGraphics item exists in the DrawPage's QGScene, but there is no corresponding DrawView
//in the DrawPage.
void QGSPage::fixOrphans(bool force)
{
Q_UNUSED(force)
// get all the DrawViews for this page, including the second level ones
// if we ever have collections of collections, we'll need to revisit this
TechDraw::DrawPage* thisPage = m_vpPage->getDrawPage();
if (!thisPage->isAttachedToDocument())
return;
std::vector<App::DocumentObject*> pChildren = thisPage->getAllViews();
// if dv doesn't have a graphic, make one
for (auto& dv : pChildren) {
if (dv->isRemoving())
continue;
QGIView* qv = findQViewForDocObj(dv);
if (!qv)
attachView(dv);
}
// if qView doesn't have a Feature on this Page, delete it
std::vector<QGIView*> qvss = getViews();
// qvss may contain an item and its child item(s) and to avoid to access a deleted item a QPointer is needed
std::vector<QPointer<QGIView>> qvs;
std::for_each(qvss.begin(), qvss.end(), [&qvs](QGIView* v) { qvs.emplace_back(v); });
App::Document* doc = m_vpPage->getDrawPage()->getDocument();
for (auto& qv : qvs) {
if (!qv)
continue;// already deleted?
App::DocumentObject* obj = doc->getObject(qv->getViewName());
if (!obj) {
//no DrawView anywhere in Document
removeQView(qv);
}
else {
//DrawView exists in Document. Does it belong to this DrawPage?
TechDraw::DrawView* viewObj = qv->getViewObject();
int numParentPages = viewObj->countParentPages();
if (numParentPages == 0) {
//DrawView does not belong to any DrawPage
//remove QGItem from QGScene
removeQView(qv);
}
else if (numParentPages == 1) {
//Does DrawView belong to this DrawPage?
TechDraw::DrawPage* parentPage = viewObj->findParentPage();
if (thisPage != parentPage) {
// The view could be a child of a link (ea Dimension).
TechDraw::DrawView* parentView = viewObj->claimParent();
for (auto* v : thisPage->getViews()) {
if (v == parentView) {
continue;
}
}
//DrawView does not belong to this DrawPage
//remove QGItem from QGScene
removeQView(qv);
}
}
else if (numParentPages > 1) {
//DrawView belongs to multiple DrawPages
//check if this MDIViewPage corresponds to any parent DrawPage
//if not, delete the QGItem
std::vector<TechDraw::DrawPage*> potentialParentPages =
qv->getViewObject()->findAllParentPages();
bool found = false;
for (auto p : potentialParentPages) {
if (thisPage == p) {
found = true;
break;
}
}
if (!found) {
//none of the parent Pages for View correspond to this Page
removeQView(qv);
}
}
}
}
}
bool QGSPage::orphanExists(const char* viewName, const std::vector<App::DocumentObject*>& list)
{
for (auto* obj : list) {
//Check child objects too recursively
if (obj->isDerivedFrom<TechDraw::DrawViewCollection>()) {
auto* collection = static_cast<TechDraw::DrawViewCollection*>(obj);
if (orphanExists(viewName, collection->getViews()))
return true;
}
// Unsure if we can compare pointers so rely on name
if (strcmp(viewName, obj->getNameInDocument()) == 0) {
return true;
}
}
return false;
}
//NOTE: this doesn't add missing views. see fixOrphans()
void QGSPage::redrawAllViews()
{
const std::vector<QGIView*>& upviews = getViews();
for (std::vector<QGIView*>::const_iterator it = upviews.begin(); it != upviews.end(); ++it) {
(*it)->updateView(true);
}
}
//NOTE: this doesn't add missing views. see fixOrphans()
void QGSPage::redraw1View(TechDraw::DrawView* dView)
{
std::string dvName = dView->getNameInDocument();
const std::vector<QGIView*>& upviews = getViews();
for (std::vector<QGIView*>::const_iterator it = upviews.begin(); it != upviews.end(); ++it) {
std::string qgivName = (*it)->getViewName();
if (dvName == qgivName) {
(*it)->updateView(true);
}
}
}
// RichTextAnno needs to know when it is rendering an Svg as the font size
// is handled differently in Svg compared to the screen or Pdf.
// Also true of QGraphicsSvgItems.
void QGSPage::setExportingSvg(bool enable)
{
m_exportingSvg = enable;
QList<QGraphicsItem*> sceneItems = items();
for (auto& qgi : sceneItems) {
QGIRichAnno* qgiRTA = dynamic_cast<QGIRichAnno*>(qgi);
if (qgiRTA) {
qgiRTA->setExportingSvg(enable);
}
}
}
void QGSPage::saveSvg(QString filename)
{
// TODO: We only have m_vpPage because constructor gets passed a view provider...
//NOTE: this makes wrong size pages in low-Rez
TechDraw::DrawPage* page(m_vpPage->getDrawPage());
const QString docName(QString::fromUtf8(page->getDocument()->getName()));
const QString pageName(QString::fromUtf8(page->getNameInDocument()));
QString svgDescription = QStringLiteral("Drawing page: ") + pageName
+ QStringLiteral(" exported from FreeCAD document: ") + docName;
QSvgGenerator svgGen;
QTemporaryFile temporaryFile;
svgGen.setOutputDevice(&temporaryFile);
// Set resolution in DPI. Use the actual one, i.e. Rez::guiX(inch)
svgGen.setResolution(Rez::guiX(25.4));
// Set size in pixels, which Qt recomputes using DPI to mm.
int pixelWidth = Rez::guiX(page->getPageWidth());
int pixelHeight = Rez::guiX(page->getPageHeight());
svgGen.setSize(QSize(pixelWidth, pixelHeight));
//"By default this property is set to QSize(-1, -1), which indicates that the generator should not output
// the width and height attributes of the <svg> element." >> but Inkscape won't read it without size info??
svgGen.setViewBox(QRect(0, 0, pixelWidth, pixelHeight));
svgGen.setTitle(QStringLiteral("FreeCAD SVG Export"));
svgGen.setDescription(svgDescription);
Gui::Selection().clearSelection();
m_vpPage->setTemplateMarkers(false);
setExportingSvg(true);
// Here we temporarily hide the page template, because Qt would otherwise convert the SVG template
// texts into series of paths, making the later document edits practically unfeasible.
// We will insert the SVG template ourselves in the final XML postprocessing operation.
QGISVGTemplate* svgTemplate = dynamic_cast<QGISVGTemplate*>(pageTemplate);
bool templateVisible = false;
if (svgTemplate) {
templateVisible = svgTemplate->isVisible();
svgTemplate->hide();
}
refreshViews();
double width = Rez::guiX(page->getPageWidth());
double height = Rez::guiX(page->getPageHeight());
QRectF sourceRect(0.0, -height, width, height);
QRectF targetRect(0.0, 0.0, width, height);
Gui::Selection().clearSelection();
QPainter p;
p.begin(&svgGen);
render(&p, targetRect, sourceRect);//note: scene render, not item render!
p.end();
setExportingSvg(false);
if (templateVisible && svgTemplate) {
svgTemplate->show();
}
refreshViews();
temporaryFile.close();
postProcessXml(temporaryFile, filename, pageName);
}
static void removeEmptyGroups(QDomElement e)
{
while (!e.isNull()) {
QDomElement next = e.nextSiblingElement();
if (e.hasChildNodes()) {
removeEmptyGroups(e.firstChildElement());
}
else if (e.tagName() == QLatin1String("g")) {
e.parentNode().removeChild(e);
}
e = next;
}
}
void QGSPage::postProcessXml(QTemporaryFile& temporaryFile, QString fileName, QString pageName)
{
QDomDocument exportDoc(QStringLiteral("SvgDoc"));
QFile file(temporaryFile.fileName());
if (!file.open(QIODevice::ReadOnly)) {
Base::Console().error("QGSPage::ppsvg - tempfile open error\n");
return;
}
if (!exportDoc.setContent(&file)) {
Base::Console().error("QGSPage::ppsvg - xml error\n");
file.close();
return;
}
file.close();
QDomElement exportDocElem = exportDoc.documentElement();//root <svg>
// Insert Freecad SVG namespace into namespace declarations
exportDocElem.setAttribute(QStringLiteral("xmlns:freecad"),
QString::fromUtf8(FREECAD_SVG_NS_URI));
// Insert all namespaces used by TechDraw's page template SVGs
exportDocElem.setAttribute(QStringLiteral("xmlns:svg"), QString::fromUtf8(SVG_NS_URI));
exportDocElem.setAttribute(QStringLiteral("xmlns:cc"), QString::fromUtf8(CC_NS_URI));
exportDocElem.setAttribute(QStringLiteral("xmlns:dc"), QString::fromUtf8(DC_NS_URI));
exportDocElem.setAttribute(QStringLiteral("xmlns:rdf"), QString::fromUtf8(RDF_NS_URI));
exportDocElem.setAttribute(QStringLiteral("xmlns:inkscape"),
QString::fromUtf8(INKSCAPE_NS_URI));
exportDocElem.setAttribute(QStringLiteral("xmlns:sodipodi"),
QString::fromUtf8(SODIPODI_NS_URI));
// Create the root group which will host the drawing group and the template group
QDomElement rootGroup = exportDoc.createElement(QStringLiteral("g"));
rootGroup.setAttribute(QStringLiteral("id"), pageName);
rootGroup.setAttribute(QStringLiteral("inkscape:groupmode"), QStringLiteral("layer"));
rootGroup.setAttribute(QStringLiteral("inkscape:label"), QStringLiteral("TechDraw"));
// Now insert our template
QGISVGTemplate* svgTemplate = dynamic_cast<QGISVGTemplate*>(pageTemplate);
if (svgTemplate) {
DrawSVGTemplate* drawTemplate = svgTemplate->getSVGTemplate();
if (drawTemplate) {
QString templateSvg = drawTemplate->processTemplate();
QDomDocument templateResultDoc(QStringLiteral("SvgDoc"));
if (templateResultDoc.setContent(templateSvg)) {
QDomElement templateDocElem = templateResultDoc.documentElement();
// Insert the template into a new group with id set to template name
QDomElement templateGroup = exportDoc.createElement(QStringLiteral("g"));
Base::FileInfo fi(drawTemplate->PageResult.getValue());
templateGroup.setAttribute(QStringLiteral("id"),
QString::fromUtf8(fi.fileName().c_str()));
templateGroup.setAttribute(QStringLiteral("style"),
QStringLiteral("stroke: none;"));
// Scale the template group correctly
templateGroup.setAttribute(QStringLiteral("transform"),
QStringLiteral("scale(%1, %2)")
.arg(Rez::guiX(1.0), 0, 'f')
.arg(Rez::guiX(1.0), 0, 'f'));
// Finally, transfer all template document child nodes under the template group
while (!templateDocElem.firstChild().isNull()) {
templateGroup.appendChild(templateDocElem.firstChild());
}
rootGroup.appendChild(templateGroup);
}
}
}
// Obtain the drawing group element, move it under root node and set its id to "DrawingContent"
QDomElement drawingGroup = exportDocElem.firstChildElement(QLatin1String("g"));
if (!drawingGroup.isNull()) {
drawingGroup.setAttribute(QStringLiteral("id"), QStringLiteral("DrawingContent"));
rootGroup.appendChild(drawingGroup);
}
exportDocElem.appendChild(rootGroup);
// As icing on the cake, get rid of the empty <g>'s Qt SVG generator painting inserts.
removeEmptyGroups(exportDocElem);
// Time to save our product
QFile outFile(fileName);
if (!outFile.open(QIODevice::WriteOnly | QIODevice::Text)) {
Base::Console().error("QGSP::ppxml - failed to open file for writing: %s\n",
qPrintable(fileName));
}
QTextStream stream(&outFile);
stream.setGenerateByteOrderMark(false);
#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
stream.setCodec("UTF-8");
#endif
stream << exportDoc.toByteArray();
outFile.close();
}
TechDraw::DrawPage* QGSPage::getDrawPage() { return m_vpPage->getDrawPage(); }
QColor QGSPage::getBackgroundColor()
{
Base::Color fcColor;
fcColor.setPackedValue(Preferences::getPreferenceGroup("Colors")->GetUnsigned("Background", 0x70707000));
return fcColor.asValue<QColor>();
}
#include <Mod/TechDraw/Gui/moc_QGSPage.cpp>
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