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create/src/Mod/TechDraw/Gui/ViewProviderPage.cpp

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/***************************************************************************
* Copyright (c) 2004 Jürgen Riegel <juergen.riegel@web.de> *
* Copyright (c) 2012 Luke Parry <l.parry@warwick.ac.uk> *
* *
* 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 <QAction>
# include <QList>
# include <QMenu>
# include <QMessageBox>
# include <QPointer>
# include <QTextStream>
# include <boost_signals2.hpp>
# include <boost/signals2/connection.hpp>
#endif
#include <App/Document.h>
#include <App/DocumentObject.h>
#include <Gui/Application.h>
#include <Gui/BitmapFactory.h>
#include <Gui/CommandT.h>
#include <Gui/Document.h>
#include <Gui/MainWindow.h>
#include <Gui/ViewProviderDocumentObject.h>
#include <Mod/TechDraw/App/DrawHatch.h>
#include <Mod/TechDraw/App/DrawPage.h>
#include <Mod/TechDraw/App/DrawProjGroupItem.h>
#include <Mod/TechDraw/App/DrawTemplate.h>
#include <Mod/TechDraw/App/DrawView.h>
#include <Mod/TechDraw/App/DrawViewBalloon.h>
#include <Mod/TechDraw/App/DrawViewDimension.h>
#include <Mod/TechDraw/App/DrawWeldSymbol.h>
#include "ViewProviderPage.h"
#include "MDIViewPage.h"
#include "PreferencesGui.h"
#include "QGITemplate.h"
#include "QGSPage.h"
#include "QGVPage.h"
#include "ViewProviderPageExtension.h"
#include "ViewProviderTemplate.h"
#include "ViewProviderViewPart.h"
using namespace TechDrawGui;
using namespace TechDraw;
namespace sp = std::placeholders;
#define _SHOWDRAWING 10
#define _TOGGLEUPDATE 11
PROPERTY_SOURCE(TechDrawGui::ViewProviderPage, Gui::ViewProviderDocumentObject)
//**************************************************************************
// Construction/Destruction
ViewProviderPage::ViewProviderPage()
: m_mdiView(nullptr), m_pageName(""), m_graphicsView(nullptr), m_graphicsScene(nullptr)
{
initExtension(this);
sPixmap = "TechDraw_TreePage";
static const char* group = "Grid";
ADD_PROPERTY_TYPE(ShowFrames, (true), group, App::Prop_None,
"Show or hide View frames and Labels on this Page");
ADD_PROPERTY_TYPE(ShowGrid, (PreferencesGui::showGrid()), group, App::Prop_None,
"Show or hide a grid on this Page");
ADD_PROPERTY_TYPE(GridSpacing, (PreferencesGui::gridSpacing()), group,
(App::PropertyType::Prop_None), "Grid line spacing in mm");
ShowFrames.setStatus(App::Property::Hidden, true);
// Do not show in property editor why? wf WF: because DisplayMode applies only to coin and we
// don't use coin.
DisplayMode.setStatus(App::Property::Hidden, true);
m_graphicsScene = new QGSPage(this);
m_graphicsScene->setItemIndexMethod(
QGraphicsScene::NoIndex);//this prevents crash when deleting dims.
//scene(view?) indices of dirty regions gets
//out of sync. missing prepareGeometryChange
//somewhere???? QTBUG-18021???
}
ViewProviderPage::~ViewProviderPage()
{
removeMDIView();//if the MDIViewPage is still in MainWindow, remove it.
m_graphicsScene->deleteLater();
}
void ViewProviderPage::attach(App::DocumentObject* pcFeat)
{
ViewProviderDocumentObject::attach(pcFeat);
//NOLINTBEGIN
auto bnd = std::bind(&ViewProviderPage::onGuiRepaint, this, sp::_1);
//NOLINTEND
TechDraw::DrawPage* feature = dynamic_cast<TechDraw::DrawPage*>(pcFeat);
if (feature) {
connectGuiRepaint = feature->signalGuiPaint.connect(bnd);
if (feature->isAttachedToDocument()) {
// it could happen that feature is not completely in the document yet and getNameInDocument returns
// nullptr, so we only update m_myName if we got a valid string.
m_pageName = feature->getNameInDocument();
}
m_graphicsScene->setObjectName(QString::fromLocal8Bit(m_pageName.c_str()));
}
}
void ViewProviderPage::onChanged(const App::Property* prop)
{
if (prop == &(ShowGrid)) {
setGrid();
}
else if (prop == &(GridSpacing)) {
setGrid();
}
else if (prop == &Visibility) {
//Visibility changes are handled in VPDO::onChanged -> show() or hide()
}
Gui::ViewProviderDocumentObject::onChanged(prop);
}
void ViewProviderPage::updateData(const App::Property* prop)
{
auto page = getDrawPage();
if (!page) {
Gui::ViewProviderDocumentObject::updateData(prop);
return;
}
if (prop == &(page->KeepUpdated)) {
if (getDrawPage()->KeepUpdated.getValue()) {
sPixmap = "TechDraw_TreePage";
}
else {
sPixmap = "TechDraw_TreePageUnsync";
}
signalChangeIcon();
//if the template is changed, rebuild the visual
}
else if (prop == &(page->Template)) {
if (!page->isUnsetting()) {
//check if a template has been added to scene first?
m_graphicsScene->matchSceneRectToTemplate();
m_graphicsScene->updateTemplate();
}
}
else if (prop == &(page->Label)) {
if (m_mdiView && !page->isUnsetting()) {
m_mdiView->setTabText(page->Label.getValue());
}
}
else if (prop == &page->Views) {
if (!page->isUnsetting())
m_graphicsScene->fixOrphans();
}
Gui::ViewProviderDocumentObject::updateData(prop);
}
bool ViewProviderPage::onDelete(const std::vector<std::string>&)
{
// warn the user if the Page is not empty
// but don't do this if there is just the template
// check if there are items in the group
auto objs = claimChildren();
// check if there is just a template
// if there are several objects, the template is never the last one
// the ExportName of a template always begins with "Template"
bool isTemplate = false;
for (auto objsIterator : objs) {
if (objsIterator->getExportName().substr(0, 8).compare(std::string("Template")) == 0)
isTemplate = true;
else
isTemplate = false;
}
if (!objs.empty() && !isTemplate) {
// generate dialog
QString bodyMessage;
QTextStream bodyMessageStream(&bodyMessage);
bodyMessageStream << qApp->translate(
"Std_Delete",
"The page is not empty, therefore the\nfollowing referencing objects might be lost:");
bodyMessageStream << '\n';
for (auto ObjIterator : objs)
bodyMessageStream << '\n' << QString::fromUtf8(ObjIterator->Label.getValue());
bodyMessageStream << "\n\n" << QObject::tr("Are you sure you want to continue?");
// show and evaluate the dialog
int DialogResult = QMessageBox::warning(
Gui::getMainWindow(), qApp->translate("Std_Delete", "Object dependencies"), bodyMessage,
QMessageBox::Yes, QMessageBox::No);
if (DialogResult == QMessageBox::Yes) {
removeMDIView();
return true;
}
else
return false;
}
else {
removeMDIView();
return true;
}
}
void ViewProviderPage::setupContextMenu(QMenu* menu, QObject* receiver, const char* member)
{
Gui::ViewProviderDocumentObject::setupContextMenu(menu, receiver, member);
QAction* act = menu->addAction(QObject::tr("Show drawing"), receiver, member);
act->setData(QVariant((int)_SHOWDRAWING));
QAction* act2 = menu->addAction(QObject::tr("Toggle KeepUpdated"), receiver, member);
act2->setData(QVariant((int)_TOGGLEUPDATE));
}
bool ViewProviderPage::setEdit(int ModNum)
{
if (ModNum == _SHOWDRAWING) {
showMDIViewPage();// show the drawing
return false; //finished editing
}
else if (ModNum == _TOGGLEUPDATE) {
auto page = getDrawPage();
if (page) {
page->KeepUpdated.setValue(!page->KeepUpdated.getValue());
page->recomputeFeature();
}
return false;
}
else {
return Gui::ViewProviderDocumentObject::setEdit(ModNum);
}
}
void ViewProviderPage::unsetEdit(int ModNum)
{
Q_UNUSED(ModNum);
return;
}
bool ViewProviderPage::doubleClicked(void)
{
// assure the TechDraw workbench
if (App::GetApplication()
.GetUserParameter()
.GetGroup("BaseApp")
->GetGroup("Preferences")
->GetGroup("Mod/TechDraw")
->GetBool("SwitchToWB", true)) {
Gui::Command::assureWorkbench("TechDrawWorkbench");
}
show();
if (m_mdiView) {
switchToMdiViewPage();
}
return true;
}
void ViewProviderPage::show(void)
{
showMDIViewPage();
ViewProviderDocumentObject::show();
}
void ViewProviderPage::hide(void)
{
if (getMDIView()) {
getMDIView()->hide();//this doesn't remove the mdiViewPage from the mainWindow
removeMDIView();
}
ViewProviderDocumentObject::hide();
}
bool ViewProviderPage::showMDIViewPage()
{
if (m_mdiView.isNull()) {
createMDIViewPage();
m_graphicsScene->addChildrenToPage();
m_graphicsScene->updateTemplate(true);
m_graphicsScene->redrawAllViews();
m_graphicsScene->fixOrphans(true);
}
else {
m_graphicsScene->redrawAllViews();
m_graphicsScene->fixOrphans(true);
m_graphicsView->update();
}
m_graphicsView->centerOnPage();
m_mdiView->viewAll();
m_mdiView->showMaximized();
setGrid();
Visibility.setValue(true);
return true;
}
void ViewProviderPage::createMDIViewPage()
{
Gui::Document* doc = Gui::Application::Instance->getDocument(pcObject->getDocument());
m_mdiView = new MDIViewPage(this, doc, Gui::getMainWindow());
if (!m_graphicsView) {
m_graphicsView = new QGVPage(this, m_graphicsScene, m_mdiView);
std::string objName = m_pageName + "View";
m_graphicsView->setObjectName(QString::fromLocal8Bit(objName.c_str()));
}
m_mdiView->setScene(m_graphicsScene, m_graphicsView);
QString tabTitle = QString::fromUtf8(getDrawPage()->Label.getValue());
m_mdiView->setDocumentObject(getDrawPage()->getNameInDocument());
m_mdiView->setDocumentName(pcObject->getDocument()->getName());
m_mdiView->setWindowTitle(tabTitle + QString::fromLatin1("[*]"));
m_mdiView->setWindowIcon(Gui::BitmapFactory().pixmap("TechDraw_TreePage"));
Gui::getMainWindow()->addWindow(m_mdiView);
switchToMdiViewPage();
}
void ViewProviderPage::switchToMdiViewPage()
{
Gui::getMainWindow()->setActiveWindow(m_mdiView);
m_graphicsView->setFocus();
}
//NOTE: removing MDIViewPage (parent) destroys QGVPage (eventually)
void ViewProviderPage::removeMDIView(void)
{
if (!m_mdiView.isNull()) {//m_mdiView is a QPointer
QList<QWidget*> wList = Gui::getMainWindow()->windows();
if (wList.contains(m_mdiView)) {
Gui::getMainWindow()->removeWindow(m_mdiView);
m_mdiView = nullptr; //m_mdiView will eventually be deleted and
m_graphicsView = nullptr;//will take m_graphicsView with it
Gui::MDIView* aw =
Gui::getMainWindow()
->activeWindow();//WF: this bit should be in the remove window logic, not here.
if (aw)
aw->showMaximized();
}
}
}
MDIViewPage* ViewProviderPage::getMDIViewPage() const
{
if (m_mdiView.isNull()) {
return nullptr;
}
return m_mdiView;
}
DrawTemplate* ViewProviderPage::getTemplate() const
{
return dynamic_cast<DrawTemplate*>(getDrawPage()->Template.getValue());
}
QGITemplate* ViewProviderPage::getQTemplate() const
{
Gui::Document* guiDoc = Gui::Application::Instance->getDocument(getDrawPage()->getDocument());
if (guiDoc) {
Gui::ViewProvider* vp = guiDoc->getViewProvider(getTemplate());
auto vpTemplate = dynamic_cast<ViewProviderTemplate*>(vp);
if (vpTemplate) {
return vpTemplate->getQTemplate();
}
}
return nullptr;
}
std::vector<App::DocumentObject*> ViewProviderPage::claimChildren(void) const
{
std::vector<App::DocumentObject*> temp;
App::DocumentObject* templateFeat = nullptr;
templateFeat = getDrawPage()->Template.getValue();
if (templateFeat) {
temp.push_back(templateFeat);
}
// Collect any child views
// for Page, valid children are any View except: DrawViewDimension
// DrawViewBalloon
// any FeatuerView in a DrawViewClip
// DrawHatch
try {
for (auto* obj : getDrawPage()->Views.getValues()) {
auto* featView = dynamic_cast<TechDraw::DrawView*>(obj);
// If the child view appoints a parent, skip it
if (featView && featView->claimParent()) {
continue;
}
// Don't collect if dimension, balloon, hatch or member of ClipGroup as these should be grouped elsewhere
if (obj->isDerivedFrom<TechDraw::DrawViewDimension>()
|| obj->isDerivedFrom<TechDraw::DrawHatch>()
|| obj->isDerivedFrom<TechDraw::DrawViewBalloon>()
|| (featView && featView->isInClip()))
continue;
else
temp.push_back(obj);
}
return temp;
}
catch (...) {
return std::vector<App::DocumentObject*>();
}
}
bool ViewProviderPage::isShow(void) const { return Visibility.getValue(); }
bool ViewProviderPage::getFrameState() { return ShowFrames.getValue(); }
void ViewProviderPage::setFrameState(bool state) { ShowFrames.setValue(state); }
void ViewProviderPage::toggleFrameState()
{
if (m_graphicsScene) {
setFrameState(!getFrameState());
m_graphicsScene->refreshViews();
setTemplateMarkers(getFrameState());
}
}
void ViewProviderPage::setTemplateMarkers(bool state)
{
App::DocumentObject* templateFeat = nullptr;
templateFeat = getDrawPage()->Template.getValue();
Gui::Document* guiDoc = Gui::Application::Instance->getDocument(templateFeat->getDocument());
Gui::ViewProvider* vp = guiDoc->getViewProvider(templateFeat);
auto* vpt = dynamic_cast<ViewProviderTemplate*>(vp);
if (vpt) {
vpt->setMarkers(state);
QGITemplate* t = vpt->getQTemplate();
if (t) {
t->updateView(true);
}
}
}
bool ViewProviderPage::canDelete(App::DocumentObject* obj) const
{
// deletions from a page don't necessarily destroy anything
// thus we can pass this action
// if an object could break something, like e.g. the template object
// its ViewProvider handles this in the onDelete() function
Q_UNUSED(obj)
return true;
}
bool ViewProviderPage::canDragObjects() const
{
return getVPPExtension()->extensionCanDragObjects();
}
bool ViewProviderPage::canDragObject(App::DocumentObject* docObj) const
{
return getVPPExtension()->extensionCanDragObject(docObj);
}
bool ViewProviderPage::canDropObjectEx(App::DocumentObject* obj, App::DocumentObject* owner,
const char* subname,
const std::vector<std::string>& elements) const
{
return getVPPExtension()->extensionCanDropObjectEx(obj, owner, subname, elements);
}
bool ViewProviderPage::canDropObject(App::DocumentObject* docObj) const
{
return getVPPExtension()->extensionCanDropObject(docObj);
}
void ViewProviderPage::dropObject(App::DocumentObject* docObj)
{
getVPPExtension()->extensionDropObject(docObj);
}
//! Redo the whole visual page
void ViewProviderPage::onGuiRepaint(const TechDraw::DrawPage* dp)
{
if (dp == getDrawPage()) {
//this signal is for us
if (!getDrawPage()->isUnsetting()) {
m_graphicsScene->fixOrphans();
}
}
}
TechDraw::DrawPage* ViewProviderPage::getDrawPage() const
{
//during redo, pcObject can become invalid, but non-zero??
if (!pcObject) {
return nullptr;
}
return dynamic_cast<TechDraw::DrawPage*>(pcObject);
}
Gui::MDIView* ViewProviderPage::getMDIView() const { return m_mdiView.data(); }
void ViewProviderPage::setGrid()
{
TechDraw::DrawPage* dp = getDrawPage();
if (!dp) {
return;
}
int pageWidth = 298;
int pageHeight = 215;
double gridStep = GridSpacing.getValue() > 0 ? GridSpacing.getValue() : 10.0;
if (dp) {
pageWidth = dp->getPageWidth();
pageHeight = dp->getPageHeight();
}
QGVPage* widget = getQGVPage();
if (widget) {
if (ShowGrid.getValue()) {
widget->showGrid(true);
widget->makeGrid(pageWidth, pageHeight, gridStep);
}
else {
widget->showGrid(false);
}
widget->updateViewport();
}
}
ViewProviderPageExtension* ViewProviderPage::getVPPExtension() const
{
auto vpe = getExtensionByType<ViewProviderPageExtension>();
auto vppe = static_cast<ViewProviderPageExtension*>(vpe);
return vppe;
}
const char* ViewProviderPage::whoAmI() const { return m_pageName.c_str(); }
void ViewProviderPage::fixSceneDependencies()
{
App::Document* doc = getDrawPage()->getDocument();
std::vector<App::DocumentObject*> docObjs =
doc->getObjectsOfType(TechDraw::DrawViewPart::getClassTypeId());
for (auto& obj : docObjs) {
Gui::ViewProvider* vp = Gui::Application::Instance->getViewProvider(obj);
if (!vp) {
continue;// can't fix this one
}
auto* vpvp = dynamic_cast<TechDrawGui::ViewProviderViewPart*>(vp);
if (!vpvp) {
continue;// can't fix this one
}
vpvp->fixSceneDependencies();
}
}
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