Text Leader initial version

src/Mod/TechDraw/Gui/QGMText.cpp

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+/***************************************************************************
+ *   Copyright (c) 2019 Wandererfan <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 <QPainter>
+#include <QStyleOptionGraphicsItem>
+#include <QColor>
+#include <QFont>
+#include <QGraphicsScene>
+#endif
+
+#include "DrawGuiStd.h"
+#include "QGMText.h"
+
+using namespace TechDraw;
+using namespace TechDrawGui;
+
+QGMText::QGMText()
+{
+    setCacheMode(QGCustomText::NoCache);
+    setFlag(ItemSendsGeometryChanges, true);
+//    setFlag(QGraphicsItem::ItemSendsScenePositionChanges, true);
+    setFlag(ItemIsMovable, true);
+    setFlag(ItemIsSelectable, true);
+    setAcceptHoverEvents(true);
+}
+
+QVariant QGMText::itemChange(GraphicsItemChange change, const QVariant &value)
+{
+    QPointF newPos(0.0,0.0);
+    if(change == ItemPositionHasChanged && scene()) {
+        Q_EMIT dragging();
+    }
+
+    return QGCustomText::itemChange(change, value);
+}
+
+void QGMText::mousePressEvent(QGraphicsSceneMouseEvent * event)
+{
+//    if(scene() && this == scene()->mouseGrabberItem()) {   //why would we get even if not mousegrabber?
+//        Q_EMIT dragging();
+//    }
+    QGCustomText::mousePressEvent(event);
+}
+
+void QGMText::mouseMoveEvent(QGraphicsSceneMouseEvent * event)
+{
+    QGCustomText::mouseMoveEvent(event);
+}
+
+void QGMText::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
+{
+    if(scene() && this == scene()->mouseGrabberItem()) {
+        Q_EMIT dragFinished();
+    }
+    QGCustomText::mouseReleaseEvent(event);
+}
+
+void QGMText::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+    Q_EMIT hover(true);
+    if (!isSelected()) {
+        setPrettyPre();
+    }
+    QGCustomText::hoverEnterEvent(event);
+}
+
+void QGMText::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+    Q_EMIT hover(false);
+    if (!isSelected()) {
+        setPrettyNormal();
+    }
+    QGCustomText::hoverLeaveEvent(event);
+}
+
+void QGMText::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget) {
+    QStyleOptionGraphicsItem myOption(*option);
+    myOption.state &= ~QStyle::State_Selected;
+
+//    painter->drawRect(boundingRect());          //good for debugging
+    if (showBox()) {
+        painter->drawRect(boundingRect().adjusted(1,1,-1,-1));
+    }
+
+    QGCustomText::paint (painter, &myOption, widget);
+}
+
+#include <Mod/TechDraw/Gui/moc_QGMText.cpp>