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QetShapeItem: user can add polyline shape

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3144 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
blacksun
2014-06-17 09:08:41 +00:00
parent a2966a48af
commit 25acb29992
6 changed files with 142 additions and 34 deletions
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67
sources/diagramview.cpp
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@@ -54,6 +54,7 @@ DiagramView::DiagramView(Diagram *diagram, QWidget *parent) : QGraphicsView(pare
setAttribute(Qt::WA_DeleteOnClose, true);
setInteractive(true);
current_behavior = noAction;
m_polyline_added = false;
QString whatsthis = tr(
"Ceci est la zone dans laquelle vous concevez vos sch\351mas en y ajoutant"
@@ -448,7 +449,7 @@ void DiagramView::mousePressEvent(QMouseEvent *e) {
fresh_focus_in_ = false;
}
if (isInteractive() && !scene -> isReadOnly() && e -> buttons() == Qt::LeftButton) {
if (isInteractive() && !scene -> isReadOnly() && e -> button() == Qt::LeftButton) {
switch (current_behavior) {
case noAction:
QGraphicsView::mousePressEvent(e);
@@ -473,6 +474,19 @@ void DiagramView::mousePressEvent(QMouseEvent *e) {
newShapeItem = new QetShapeItem(rubber_band_origin, rubber_band_origin, QetShapeItem::Ellipse);
scene -> addItem(newShapeItem);
break;
case addingPolyline:
if (!m_polyline_added) {
setContextMenuPolicy(Qt::NoContextMenu); //< for finish the polyline we must to right click,
// We disable the context menu
newShapeItem = new QetShapeItem(rubber_band_origin, rubber_band_origin, QetShapeItem::Polyline);
scene -> addItem(newShapeItem);
m_polyline_added = true;
} else {
newShapeItem->setNextPoint(Diagram::snapToGrid(rubber_band_origin)); //< this point is ok for pos
newShapeItem->setNextPoint(Diagram::snapToGrid(rubber_band_origin)); //< Add new point for next segment. the pos of this point
// can be changed by calling QetShapItem::setP2()
}
break;
case dragView:
current_behavior = noAction;
QGraphicsView::mousePressEvent(e);
@@ -482,13 +496,13 @@ void DiagramView::mousePressEvent(QMouseEvent *e) {
break;
}
}
// workaround for drag view with hold wheel click and drag mouse
// see also mouseMoveEvent() and mouseReleaseEvent()
else if (e -> buttons() == Qt::MidButton) {
//Start drag view when hold the middle button
else if (e -> button() == Qt::MidButton) {
setCursor(Qt::ClosedHandCursor);
center_view_ = mapToScene(this -> viewport() -> rect()).boundingRect().center();
return;
center_view_ = mapToScene(this -> viewport() -> rect().center());
}
else QGraphicsView::mousePressEvent(e);
}
@@ -497,15 +511,19 @@ void DiagramView::mousePressEvent(QMouseEvent *e) {
* Manage the event move mouse
*/
void DiagramView::mouseMoveEvent(QMouseEvent *e) {
if ((e -> buttons() & Qt::MidButton) == Qt::MidButton) {
//Drag the view
if (e -> buttons() == Qt::MidButton) {
QPointF move = rubber_band_origin - mapToScene(e -> pos());
this -> centerOn(center_view_ + move);
center_view_ = mapToScene(this -> viewport() -> rect()).boundingRect().center();
return;
center_view_ = mapToScene( this -> viewport() -> rect().center() );
}
else if (e -> buttons() == Qt::LeftButton && current_behavior & addingShape) {
//Add point P2 to the curent shape
else if ( (e -> buttons() == Qt::LeftButton && current_behavior &addingShape) ||
(current_behavior == addingPolyline && m_polyline_added) ) {
newShapeItem->setP2(mapToScene(e->pos()));
}
else QGraphicsView::mouseMoveEvent(e);
}
@@ -514,16 +532,28 @@ void DiagramView::mouseMoveEvent(QMouseEvent *e) {
* Manage event release click mouse
*/
void DiagramView::mouseReleaseEvent(QMouseEvent *e) {
if (e -> button() == Qt::MidButton) {
setCursor(Qt::ArrowCursor);
return;
}
else if (current_behavior & addingShape) {
//Stop drag view
if (e -> button() == Qt::MidButton) setCursor(Qt::ArrowCursor);
// Add shape define by 2 points
else if (current_behavior & adding2PShape) {
// place it to the good position with an undo command
scene -> undoStack().push(new AddShapeCommand(scene, newShapeItem, rubber_band_origin));
emit(itemAdded());
current_behavior = noAction;
}
// Add polyline shape
else if (e -> button() == Qt::RightButton && current_behavior == addingPolyline) {
newShapeItem->setP2(rubber_band_origin);
scene -> undoStack().push(new AddShapeCommand(scene, newShapeItem, newShapeItem->scenePos()));
emit(itemAdded());
current_behavior = noAction;
m_polyline_added = false;
setContextMenuPolicy(Qt::DefaultContextMenu); //< the polyline is finish,
// We make context menu available
}
else QGraphicsView::mouseReleaseEvent(e);
}
@@ -1245,6 +1275,13 @@ void DiagramView::addEllipse() {
current_behavior = addingEllipse;
}
/**
* @brief DiagramView::addPolyline
*/
void DiagramView::addPolyline() {
current_behavior = addingPolyline;
}
/**
* @brief DiagramView::editImage
* open edit image dialog if only one image is selected