[TD]disable crop fields if crop not checked

src/Mod/TechDraw/Gui/TaskActiveView.cpp

@@ -62,6 +62,7 @@ TaskActiveView::TaskActiveView(TechDraw::DrawPage* pageFeat)
     ui->qsbHeight->setUnit(Base::Unit::Length);
 
     setUiPrimary();
+    connect(ui->cbCrop, &QCheckBox::clicked, this, &TaskActiveView::onCropChanged);
 }
 
 TaskActiveView::~TaskActiveView() {}
@@ -84,6 +85,8 @@ void TaskActiveView::setUiPrimary()
 {
     //    Base::Console().Message("TAV::setUiPrimary()\n");
     setWindowTitle(QObject::tr("ActiveView to TD View"));
+    ui->cbCrop->setChecked(false);
+    enableCrop(false);
 }
 
 void TaskActiveView::blockButtons(bool b) { Q_UNUSED(b); }
@@ -220,6 +223,17 @@ TechDraw::DrawViewImage* TaskActiveView::createActiveView()
     return newImg;
 }
 
+void TaskActiveView::onCropChanged()
+{
+    enableCrop(ui->cbCrop->isChecked());
+}
+
+void TaskActiveView::enableCrop(bool state)
+{
+    ui->qsbHeight->setEnabled(state);
+    ui->qsbWidth->setEnabled(state);
+}
+
 //******************************************************************************
 
 void TaskActiveView::saveButtons(QPushButton* btnOK, QPushButton* btnCancel)

src/Mod/TechDraw/Gui/TaskActiveView.h

@@ -70,6 +70,10 @@ protected:
     void setUiPrimary(void);
 
     TechDraw::DrawViewImage* createActiveView();
+    void enableCrop(bool state);
+
+private Q_SLOTS:
+    void onCropChanged();
 
 private:
     std::unique_ptr<Ui_TaskActiveView> ui;
@@ -80,6 +84,7 @@ private:
     QPushButton* m_btnOK;
     QPushButton* m_btnCancel;
 
+
 };