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[TD]fix Dimension selection issues

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This commit is contained in:
wandererfan
2019-12-30 14:53:18 -05:00
committed by WandererFan
parent 40ed5df69f
commit 7e3197abe0
8 changed files with 231 additions and 177 deletions
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66
src/Mod/TechDraw/Gui/MDIViewPage.cpp
View File

@@ -1016,43 +1016,52 @@ void MDIViewPage::blockSelection(const bool state)
//Set all QGIViews to unselected state
void MDIViewPage::clearSceneSelection()
{
blockSelection(true);
m_sceneSelected.clear();
// Base::Console().Message("MDIVP::clearSceneSelection()\n");
blockSelection(true);
m_sceneSelected.clear();
std::vector<QGIView *> views = m_view->getViews();
std::vector<QGIView *> views = m_view->getViews();
// Iterate through all views and unselect all
for (std::vector<QGIView *>::iterator it = views.begin(); it != views.end(); ++it) {
QGIView *item = *it;
bool state = item->isSelected();
if (state) {
item->setSelected(false);
item->updateView();
}
}
// Iterate through all views and unselect all
for (std::vector<QGIView *>::iterator it = views.begin(); it != views.end(); ++it) {
QGIView *item = *it;
bool state = item->isSelected();
blockSelection(false);
//handle oddballs
QGIViewDimension* dim = dynamic_cast<QGIViewDimension*>(*it);
if (dim != nullptr) {
state = dim->getDatumLabel()->isSelected();
} else {
QGIViewBalloon* bal = dynamic_cast<QGIViewBalloon*>(*it);
if (bal != nullptr) {
state = bal->getBalloonLabel()->isSelected();
}
}
if (state) {
item->setGroupSelection(false);
item->updateView();
}
}
blockSelection(false);
}
//!Update QGIView's selection state based on Selection made outside Drawing Interface
void MDIViewPage::selectQGIView(App::DocumentObject *obj, const bool isSelected)
{
// Base::Console().Message("MDIVP::selectQGIV(%s) - %d\n", obj->getNameInDocument(), isSelected);
App::DocumentObject* objCopy = obj;
TechDraw::DrawHatch* hatchObj = dynamic_cast<TechDraw::DrawHatch*>(objCopy);
if (hatchObj) { //Hatch does not have a QGIV of it's own. mark parent as selected.
objCopy = hatchObj->getSourceView(); //possible to highlight subObject?
}
QGIView *view = m_view->findQViewForDocObj(objCopy);
QGIView *view = m_view->findQViewForDocObj(obj);
blockSelection(true);
if(view) {
bool state = view->isSelected();
if (state != isSelected) {
if (!isSelected) {
view->setGroupSelection(false);
} else if (state != isSelected) {
view->setSelected(isSelected);
view->updateView();
}
view->updateView();
}
blockSelection(false);
}
@@ -1074,15 +1083,16 @@ void MDIViewPage::onSelectionChanged(const Gui::SelectionChanges& msg)
}
}
blockSelection(false);
} else {
bool selectState = (msg.Type == Gui::SelectionChanges::AddSelection) ? true : false;
} else if(msg.Type == Gui::SelectionChanges::AddSelection) {
blockSelection(true);
for (auto& so: selObjs){
if (so.pObject->isDerivedFrom(TechDraw::DrawView::getClassTypeId())) {
selectQGIView(so.pObject, selectState);
selectQGIView(so.pObject, true);
}
}
blockSelection(false);
} else {
Base::Console().Log("MDIVP::onSelectionChanged - unhandled: %d\n", msg.Type);
}
}
@@ -1290,12 +1300,6 @@ void MDIViewPage::setTreeToSceneSelect(void)
// Base::Console().Message("MDIVP::setTreeToScene - mText has no parent Feature\n");
continue;
}
// if (!parentFeat->isDerivedFrom(TechDraw::DrawLeaderLine::getClassTypeId())) {
// //mtext is parented to something other than Leader
// //need special cases here?
// Base::Console().Message("MDIVP::setTreeToScene - mText parentFeat is not LeaderLine\n");
// continue;
// }
const char* name = parentFeat->getNameInDocument();
if (!name) { //can happen during undo/redo if Dim is selected???
// Base::Console().Message("INFO - MDIVP::sceneSelectionChanged - parentFeat name is null!\n");

1
src/Mod/TechDraw/Gui/QGIUserTypes.h
View File

@@ -10,6 +10,7 @@ QGraphicsItemFace: 104
QGraphicsItemVertex: 105
QGraphicsItemViewDimension : 106
QGraphicsItemViewBalloon : 140
QGraphicsItemBalloonLabel : 141
QGraphicsItemDatumLabel : 107
QGraphicsItemViewSection : 108
QGraphicsItemArrow: 109

6
src/Mod/TechDraw/Gui/QGIView.cpp
View File

@@ -158,6 +158,12 @@ bool QGIView::isVisible(void)
return result;
}
//Set selection state for this and it's children
void QGIView::setGroupSelection(bool b)
{
setSelected(b);
}
void QGIView::alignTo(QGraphicsItem*item, const QString &alignment)
{
alignHash.clear();

3
src/Mod/TechDraw/Gui/QGIView.h
View File

@@ -83,6 +83,9 @@ public:
virtual void drawBorder(void);
virtual void isVisible(bool state);
virtual bool isVisible(void);
virtual void setGroupSelection(bool b);
virtual void draw(void);
virtual void drawCaption(void);
virtual void rotateView(void);

194
src/Mod/TechDraw/Gui/QGIViewBalloon.cpp
View File

@@ -275,6 +275,7 @@ QGIViewBalloon::QGIViewBalloon() :
balloonLabel->setZValue(ZVALUE::LABEL);
arrow->setZValue(ZVALUE::DIMENSION);
balloonLines->setZValue(ZVALUE::DIMENSION);
balloonLines->setStyle(Qt::SolidLine);
@@ -305,61 +306,44 @@ QGIViewBalloon::QGIViewBalloon() :
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?
setZValue(ZVALUE::DIMENSION);
}
//from QGVP::mouseReleaseEvent - pos = eventPos
void QGIViewBalloon::placeBalloon(QPointF pos)
QVariant QGIViewBalloon::itemChange(GraphicsItemChange change, const QVariant &value)
{
// Base::Console().Message("QGIVB::placeBalloon(%s)\n",
// DrawUtil::formatVector(pos).c_str());
auto balloon( dynamic_cast<TechDraw::DrawViewBalloon*>(getViewObject()) );
if( balloon == nullptr ) {
return;
if (change == ItemSelectedHasChanged && scene()) {
if(isSelected()) {
balloonLabel->setSelected(true);
} else {
balloonLabel->setSelected(false);
}
draw();
}
return QGIView::itemChange(change, value);
}
DrawView* balloonParent = nullptr;
App::DocumentObject* docObj = balloon->SourceView.getValue();
if (docObj == nullptr) {
return;
} else {
balloonParent = dynamic_cast<DrawView*>(docObj);
}
auto featPage = balloonParent->findParentPage();
if (featPage == nullptr) {
return;
}
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
balloon->OriginX.setValue(Rez::appX(mapFromScene(pos).x()));
balloon->OriginY.setValue(Rez::appX(mapFromScene(pos).y()));
balloon->X.setValue(Rez::appX(mapFromScene(pos).x() + 200));
balloon->Y.setValue(- Rez::appX(mapFromScene(pos).y() - 200));
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(mapFromScene(pos).x() + 200, mapFromScene(pos).y() -200);
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
//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)
{
@@ -382,18 +366,6 @@ void QGIViewBalloon::setViewPartFeature(TechDraw::DrawViewBalloon *balloon)
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);
@@ -478,6 +450,58 @@ void QGIViewBalloon::balloonLabelDragFinished()
Gui::Command::commitCommand();
}
//from QGVP::mouseReleaseEvent - pos = eventPos
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 = nullptr;
App::DocumentObject* docObj = balloon->SourceView.getValue();
if (docObj == nullptr) {
return;
} else {
balloonParent = dynamic_cast<DrawView*>(docObj);
}
auto featPage = balloonParent->findParentPage();
if (featPage == nullptr) {
return;
}
auto vp = static_cast<ViewProviderBalloon*>(getViewProvider(getViewObject()));
if ( vp == nullptr ) {
return;
}
balloon->OriginX.setValue(Rez::appX(mapFromScene(pos).x()));
balloon->OriginY.setValue(Rez::appX(mapFromScene(pos).y()));
balloon->X.setValue(Rez::appX(mapFromScene(pos).x() + 200));
balloon->Y.setValue(- Rez::appX(mapFromScene(pos).y() - 200));
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(mapFromScene(pos).x() + 200, mapFromScene(pos).y() -200);
balloonLabel->setDimString(labelText, Rez::guiX(balloon->TextWrapLen.getValue()));
draw();
}
void QGIViewBalloon::draw()
{
draw_modifier(false);
@@ -516,7 +540,7 @@ void QGIViewBalloon::draw_modifier(bool modifier)
}
m_colNormal = getNormalColor();
balloonLabel->setColor(m_colNormal);
// balloonLabel->setColor(m_colNormal);
m_lineWidth = Rez::guiX(vp->LineWidth.getValue());
@@ -661,19 +685,13 @@ void QGIViewBalloon::draw_modifier(bool modifier)
arrow->setRotation(arAngle);
arrow->show();
// redraw the Dimension and the parent View
// redraw the Balloon and the parent View
if (hasHover && !isSelected()) {
arrow->setPrettyPre();
balloonLines->setPrettyPre();
balloonShape->setPrettyPre();
setPrettyPre();
} else if (isSelected()) {
arrow->setPrettySel();
balloonLines->setPrettySel();
balloonShape->setPrettySel();
setPrettySel();
} else {
arrow->setPrettyNormal();
balloonLines->setPrettyNormal();
balloonShape->setPrettyNormal();
setPrettyNormal();
}
update();
@@ -681,30 +699,40 @@ void QGIViewBalloon::draw_modifier(bool modifier)
//TODO: parent redraw still required with new frame/label??
parentItem()->update();
} else {
Base::Console().Log("INFO - QGIVD::draw - no parent to update\n");
Base::Console().Log("INFO - QGIVB::draw - no parent to update\n");
}
}
void QGIViewBalloon::setPrettyPre(void)
{
arrow->setPrettyPre();
balloonShape->setPrettyPre();
balloonLines->setPrettyPre();
}
void QGIViewBalloon::setPrettySel(void)
{
// Base::Console().Message("QGIVBal::setPrettySel()\n");
arrow->setPrettySel();
balloonShape->setPrettySel();
balloonLines->setPrettySel();
}
void QGIViewBalloon::setPrettyNormal(void)
{
arrow->setPrettyNormal();
balloonShape->setPrettyNormal();
balloonLines->setPrettyNormal();
}
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;

10
src/Mod/TechDraw/Gui/QGIViewBalloon.h
View File

@@ -137,15 +137,21 @@ public:
virtual void paint( QPainter * painter,
const QStyleOptionGraphicsItem * option,
QWidget * widget = 0 ) override;
QString getLabelText(void);
void draw_modifier(bool modifier);
void placeBalloon(QPointF pos);
TechDraw::DrawViewBalloon *dvBalloon;
void setPrettyPre(void);
void setPrettySel(void);
void setPrettyNormal(void);
virtual void setGroupSelection(bool b) override;
virtual QGIBalloonLabel* getBalloonLabel(void) { return balloonLabel; }
virtual QColor getNormalColor(void) override;
int prefDefaultArrow() const;
public Q_SLOTS:
void balloonLabelDragged(bool ctrl);
void balloonLabelDragFinished(void);
@@ -171,7 +177,7 @@ protected:
bool m_obtuse;
void parentViewMousePressed(QGIView *view, QPointF pos);
QPointF *oldLabelCenter;
QGIView *parent;
QGIView *parent; //used to create edit dialog
};

118
src/Mod/TechDraw/Gui/QGIViewDimension.cpp
View File

@@ -102,7 +102,6 @@ QGIDatumLabel::QGIDatumLabel()
m_unitText->setParentItem(this);
m_ctrl = false;
hasHover = false;
m_isFramed = false;
m_lineWidth = Rez::guiX(0.5);
@@ -146,6 +145,7 @@ void QGIDatumLabel::mouseMoveEvent(QGraphicsSceneMouseEvent * event)
void QGIDatumLabel::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
{
// Base::Console().Message("QGIDL::mouseReleaseEvent()\n");
m_ctrl = false;
if(scene() && this == scene()->mouseGrabberItem()) {
Q_EMIT dragFinished();
@@ -157,7 +157,6 @@ void QGIDatumLabel::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
void QGIDatumLabel::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
Q_EMIT hover(true);
hasHover = true;
if (!isSelected()) {
setPrettyPre();
} else {
@@ -173,7 +172,6 @@ void QGIDatumLabel::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
Q_UNUSED(view);
Q_EMIT hover(false);
hasHover = false;
if (!isSelected()) {
setPrettyNormal();
} else {
@@ -336,8 +334,8 @@ void QGIDatumLabel::setTolString()
underFormat = qs2.sprintf(qsFormatUnder.toStdString().c_str(), underTol);
#endif
m_tolTextOver->setHtml(overFormat);
m_tolTextUnder->setHtml(underFormat);
m_tolTextOver->setPlainText(overFormat);
m_tolTextUnder->setPlainText(underFormat);
return;
}
@@ -376,14 +374,17 @@ double QGIDatumLabel::getTolAdjust(void)
void QGIDatumLabel::setPrettySel(void)
{
// Base::Console().Message("QGIDL::setPrettySel()\n");
m_dimText->setPrettySel();
m_tolTextOver->setPrettySel();
m_tolTextUnder->setPrettySel();
m_unitText->setPrettySel();
update();
}
void QGIDatumLabel::setPrettyPre(void)
{
// Base::Console().Message("QGIDL::setPrettyPre()\n");
m_dimText->setPrettyPre();
m_tolTextOver->setPrettyPre();
m_tolTextUnder->setPrettyPre();
@@ -392,6 +393,7 @@ void QGIDatumLabel::setPrettyPre(void)
void QGIDatumLabel::setPrettyNormal(void)
{
// Base::Console().Message("QGIDL::setPrettyNormal()\n");
m_dimText->setPrettyNormal();
m_tolTextOver->setPrettyNormal();
m_tolTextUnder->setPrettyNormal();
@@ -412,14 +414,14 @@ QGIViewDimension::QGIViewDimension() :
hasHover(false),
m_lineWidth(0.0)
{
setHandlesChildEvents(false);
setFlag(QGraphicsItem::ItemIsMovable, false);
setFlag(QGraphicsItem::ItemIsSelectable, false);
// setAcceptHoverEvents(true);
setAcceptHoverEvents(false);
setCacheMode(QGraphicsItem::NoCache);
datumLabel = new QGIDatumLabel();
// datumLabel->m_parent = this; //for dialog setup eventually
addToGroup(datumLabel);
datumLabel->setColor(getNormalColor());
datumLabel->setPrettyNormal();
@@ -442,9 +444,10 @@ QGIViewDimension::QGIViewDimension() :
aHead2->setPrettyNormal();
datumLabel->setZValue(ZVALUE::DIMENSION);
dimLines->setZValue(ZVALUE::DIMENSION);
aHead1->setZValue(ZVALUE::DIMENSION);
aHead2->setZValue(ZVALUE::DIMENSION);
dimLines->setZValue(ZVALUE::DIMENSION);
dimLines->setStyle(Qt::SolidLine);
//centerMark = new QGICMark();
//addToGroup(centerMark);
@@ -467,27 +470,15 @@ QGIViewDimension::QGIViewDimension() :
datumLabel, SIGNAL(hover(bool)),
this , SLOT (hover(bool)));
dimLines->setStyle(Qt::SolidLine);
setZValue(ZVALUE::DIMENSION); //note: this won't paint dimensions over another View if it stacks
//above this Dimension's parent view. need Layers?
m_label->hide();
m_border->hide();
m_caption->hide();
m_lock->hide();
setPrettyNormal();
}
QVariant QGIViewDimension::itemChange(GraphicsItemChange change, const QVariant &value)
{
if (change == ItemSelectedHasChanged && scene()) {
if(isSelected()) {
setSelected(false);
datumLabel->setSelected(true);
} else {
datumLabel->setSelected(false);
}
@@ -496,14 +487,21 @@ QVariant QGIViewDimension::itemChange(GraphicsItemChange change, const QVariant
return QGIView::itemChange(change, value);
}
//Set selection state for this and it's children
void QGIViewDimension::setGroupSelection(bool b)
{
// Base::Console().Message("QGIVD::setGroupSelection(%d)\n",b);
setSelected(b);
datumLabel->setSelected(b);
dimLines->setSelected(b);
aHead1->setSelected(b);
aHead2->setSelected(b);
}
void QGIViewDimension::select(bool state)
{
// Base::Console().Message("QGIVD::select(%d)\n", state);
if (state) {
setPrettySel();
} else {
setPrettyNormal();
}
// Base::Console().Message("QGIVDim::select(%d)\n", state);
setSelected(state);
draw();
}
@@ -511,19 +509,6 @@ void QGIViewDimension::select(bool state)
void QGIViewDimension::hover(bool state)
{
hasHover = state;
if (state) {
if (datumLabel->isSelected()) {
setPrettySel();
} else {
setPrettyPre(); //have hover, not selected -> preselect
}
} else {
if (datumLabel->isSelected()) {
setPrettySel();
} else {
setPrettyNormal();
}
}
draw();
}
@@ -544,6 +529,15 @@ void QGIViewDimension::setViewPartFeature(TechDraw::DrawViewDimension *obj)
draw();
}
//special handling to prevent unwanted repositioning
//clicking on the dimension, but outside the label, should do nothing to position
//label will get clicks before QGIVDim
void QGIViewDimension::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
{
// Base::Console().Message("QGIVDim::mouseReleaseEvent() - %s\n",getViewName());
QGraphicsItem::mouseReleaseEvent(event);
}
void QGIViewDimension::updateView(bool update)
{
Q_UNUSED(update);
@@ -618,24 +612,6 @@ void QGIViewDimension::updateDim()
datumLabel->setLineWidth(m_lineWidth);
}
//this is for formatting and finding centers, not display
QString QGIViewDimension::getLabelText(void)
{
QString result;
QString first = datumLabel->getDimText()->toPlainText();
// QString second = datumLabel->getTolText()->toPlainText();
QString second = datumLabel->getTolTextOver()->toPlainText();
QString third = datumLabel->getTolTextUnder()->toPlainText();
if (second.length() > third.length()) {
result = first + second;
} else {
result = first + third;
}
// result = first + second;
return result;
}
void QGIViewDimension::datumLabelDragged(bool ctrl)
{
Q_UNUSED(ctrl);
@@ -658,6 +634,23 @@ void QGIViewDimension::datumLabelDragFinished()
Gui::Command::commitCommand();
}
//this is for formatting and finding centers, not display
QString QGIViewDimension::getLabelText(void)
{
QString result;
QString first = datumLabel->getDimText()->toPlainText();
// QString second = datumLabel->getTolText()->toPlainText();
QString second = datumLabel->getTolTextOver()->toPlainText();
QString third = datumLabel->getTolTextUnder()->toPlainText();
if (second.length() > third.length()) {
result = first + second;
} else {
result = first + third;
}
// result = first + second;
return result;
}
void QGIViewDimension::draw()
{
@@ -694,7 +687,6 @@ void QGIViewDimension::draw()
m_lineWidth = Rez::guiX(vp->LineWidth.getValue());
m_colNormal = getNormalColor();
datumLabel->setColor(m_colNormal);
datumLabel->setRotation(0.0);
datumLabel->show();
@@ -728,6 +720,14 @@ void QGIViewDimension::draw()
drawArrows(0, nullptr, nullptr, false);
}
if (isSelected()) {
setPrettySel();
} else if (hasHover) {
setPrettyPre();
} else {
setPrettyNormal();
}
update();
if (parentItem()) {
//TODO: parent redraw still required with new frame/label??

10
src/Mod/TechDraw/Gui/QGIViewDimension.h
View File

@@ -94,7 +94,7 @@ public:
void setTolTextUnder(QGCustomText* newTol) { m_tolTextOver = newTol; }
double getTolAdjust(void);
bool hasHover;
/* bool hasHover;*/
bool isFramed(void) { return m_isFramed; }
void setFramed(bool framed) { m_isFramed = framed; }
@@ -160,6 +160,8 @@ public:
void setPrettySel(void);
void setPrettyNormal(void);
virtual void setGroupSelection(bool b) override;
virtual QGIDatumLabel* getDatumLabel(void) { return datumLabel; }
public Q_SLOTS:
void datumLabelDragged(bool ctrl);
@@ -243,7 +245,9 @@ protected:
Base::Vector3d findIsoDir(Base::Vector3d ortho);
Base::Vector3d findIsoExt(Base::Vector3d isoDir);
QString getPrecision(void);
virtual void mouseReleaseEvent( QGraphicsSceneMouseEvent * event) override;
protected:
bool hasHover;
QGIDatumLabel* datumLabel; //dimension text
@@ -275,6 +279,8 @@ private:
double getDefaultAsmeHorizontalLeaderLength() const;
double getDefaultAsmeExtensionLineGap() const;
/* QGIView* m_parent; //for edit dialog set up eventually*/
};
} // namespace MDIViewPageGui