Improve free selection behavior

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@5732 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/diagramview.cpp

@@ -399,6 +399,8 @@ void DiagramView::pasteHere() {
 */
 void DiagramView::mousePressEvent(QMouseEvent *e)
 {
+	e->ignore();
+	
 	if (m_fresh_focus_in)
 	{
 		switchToVisualisationModeIfNeeded(e);
@@ -412,16 +414,40 @@ void DiagramView::mousePressEvent(QMouseEvent *e)
 	{
 		m_drag_last_pos = e->pos();
 		viewport()->setCursor(Qt::ClosedHandCursor);
+		e->accept();
+		return;
 	}
-	else if (e->button() == Qt::LeftButton &&
-			 e->modifiers() == Qt::SHIFT)
+	
+		//There is a good luck that user want to do a free selection
+		//In this case we temporally disable the dragmode because if the QGraphicsScene don't accept the event,
+		//and the drag mode is set to rubberbanddrag, the QGraphicsView start rubber band drag, and accept the event.
+	if (e->button() == Qt::LeftButton &&
+		e->modifiers() == Qt::CTRL)
+	{
+		QGraphicsView::DragMode dm = dragMode();
+		setDragMode(QGraphicsView::NoDrag);
+		QGraphicsView::mousePressEvent(e);
+		setDragMode(dm);
+	} else {
+		QGraphicsView::mousePressEvent(e);
+	}
+			
+	if (e->isAccepted()) {
+		return;
+	}
+	
+	if (e->button() == Qt::LeftButton &&
+			 e->modifiers() == Qt::CTRL)
 	{
 		m_free_rubberbanding = true;
 		m_free_rubberband = QPolygon();
-		QGraphicsView::mousePressEvent(e);
+		e->accept();
+		return;
 	}
-
-	else QGraphicsView::mousePressEvent(e);
+	
+	if (!e->isAccepted()) {
+		QGraphicsView::mousePressEvent(e);
+	}	
 }
 
 /**
@@ -516,7 +542,7 @@ void DiagramView::mouseReleaseEvent(QMouseEvent *e)
 		
 			//Popup a menu with an action to create conductors between
 			//all selected terminals.
-		QAction *act = new QAction(tr("Connecter les bornes sélectionnées"), this);
+		QAction *act = new QAction(tr("Connecter les bornes sélectionné"), this);
 		QPolygonF polygon_ = m_free_rubberband;
 		connect(act, &QAction::triggered, [this, polygon_]()
 		{

sources/qetgraphicsitem/qetgraphicsitem.cpp

@@ -1,5 +1,5 @@
 /*
-	Copyright 2006-2019 The QElectroTech Team
+	Copyright 2006-2017 The QElectroTech Team
 	This file is part of QElectroTech.
 
 	QElectroTech is free software: you can redistribute it and/or modify
@@ -27,7 +27,7 @@
 QetGraphicsItem::QetGraphicsItem(QGraphicsItem *parent):
 	QGraphicsObject(parent),
 	is_movable_(true),
-	first_move_(true),
+	m_first_move(true),
 	snap_to_grid_(true)
 {}
 
@@ -75,66 +75,71 @@ QET::GraphicsItemState QetGraphicsItem::state() const {
 /**
  * @brief QetGraphicsItem::mousePressEvent
  *handle the mouse click
- * @param e
+ * @param event
  */
-void QetGraphicsItem::mousePressEvent(QGraphicsSceneMouseEvent *e)
+void QetGraphicsItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
 {
-	if (e -> button() == Qt::LeftButton)
+	if (event->button() == Qt::LeftButton)
 	{
-			//Disable views context menu
-		if (scene())
-			foreach (QGraphicsView *view, scene()->views())
-				view->setContextMenuPolicy(Qt::NoContextMenu);
-
-		first_move_ = true;
-		if (e -> modifiers() & Qt::ControlModifier)
+		m_first_move = true;
+		if (event->modifiers() & Qt::ControlModifier) {
 			setSelected(!isSelected());
+		}
 	}
 
-	QGraphicsItem::mousePressEvent(e);
+	QGraphicsItem::mousePressEvent(event);
 }
 
 /**
  * @brief QetGraphicsItem::mouseDoubleClickEvent
  *handle the mouse double click
- * @param e
+ * @param event
  */
-void QetGraphicsItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *e) {
-	Q_UNUSED (e);
+void QetGraphicsItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
+{
 	editProperty();
+	event->accept();
 }
 
 /**
  * @brief QetGraphicsItem::mouseMoveEvent
  *handle mouse movement
- * @param e
+ * @param event
  */
-void QetGraphicsItem::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
-	if (isSelected() && e -> buttons() & Qt::LeftButton) {
-		//Item is moving
-		if(diagram() && first_move_) {
-			//It's the first movement, we signal it to parent diagram
+void QetGraphicsItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+	if (isSelected() && event->buttons() & Qt::LeftButton)
+	{
+			//Item is moving
+		if(diagram() && m_first_move) {
+				//It's the first movement, we signal it to parent diagram
 			diagram()->elementsMover().beginMovement(diagram(), this);
 		}
 
-		//we apply the mouse movement
+			//we apply the mouse movement
 		QPointF old_pos = pos();
-		if (first_move_) {
-			mouse_to_origin_movement_ = old_pos - e -> buttonDownScenePos(Qt::LeftButton);
+		if (m_first_move) {
+			m_mouse_to_origin_movement = old_pos - event -> buttonDownScenePos(Qt::LeftButton);
 		}
-		QPointF expected_pos = e -> scenePos() + mouse_to_origin_movement_;
+		QPointF expected_pos = event->scenePos() + m_mouse_to_origin_movement;
 		setPos(expected_pos); // setPos() will snap the expected position to the grid
 
-		//we calcul the real movement apply by setPos()
+			//we calcul the real movement apply by setPos()
 		QPointF effective_movement = pos() - old_pos;
 		if (diagram()) {
-			//we signal the real movement apply to diagram,
-			//who he apply to other selected item
+				//we signal the real movement apply to diagram,
+				//who he apply to other selected item
 			diagram()->elementsMover().continueMovement(effective_movement);
 		}
-	} else e -> ignore();
+		event->accept();
+	}
+	else {
+		event->ignore();
+	}
 
-	if (first_move_) first_move_ = false;
+	if (m_first_move) {
+		m_first_move = false;
+	}
 }
 
 /**
@@ -142,16 +147,10 @@ void QetGraphicsItem::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
  *handle mouse release click
  * @param e
  */
-void QetGraphicsItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *e) {
-	if (diagram())
+void QetGraphicsItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+	if (diagram()) {
 		diagram()->elementsMover().endMovement();
-
-	if (!(e -> modifiers() & Qt::ControlModifier))
-		QGraphicsItem::mouseReleaseEvent(e);
-
-		//Enable views context menu
-	if (e -> button() == Qt::LeftButton)
-		if (scene())
-			foreach (QGraphicsView *view, scene()->views())
-				view -> setContextMenuPolicy(Qt::DefaultContextMenu);
+		event->accept();
+	}
 }

sources/qetgraphicsitem/qetgraphicsitem.h

@@ -1,5 +1,5 @@
 /*
-	Copyright 2006-2019 The QElectroTech Team
+	Copyright 2006-2017 The QElectroTech Team
 	This file is part of QElectroTech.
 
 	QElectroTech is free software: you can redistribute it and/or modify
@@ -47,16 +47,16 @@ class QetGraphicsItem : public QGraphicsObject
 
 		//protected method
 	protected:
-		void mousePressEvent(QGraphicsSceneMouseEvent *e) override;
-		void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *e) override;
-		void mouseMoveEvent(QGraphicsSceneMouseEvent *e) override;
-		void mouseReleaseEvent(QGraphicsSceneMouseEvent *e) override;
+		void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
+		void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override;
+		void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
+		void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
 
 	protected:
 		bool is_movable_;
-		bool first_move_;
+		bool m_first_move;
 		bool snap_to_grid_;
-		QPointF mouse_to_origin_movement_;
+		QPointF m_mouse_to_origin_movement;
 		QET::GraphicsItemState m_state = QET:: GIOK;
 
 };