/**
* Sets the second object of the message using the specified widget and
* creates the message.
* The association is created and added to the view. The dialog to select
* the operation of the message is shown.
*
* @param secondObject The second object of the message.
* @param messageType The type of the message to create.
*/
void ToolBarStateMessages::setSecondWidget(ObjectWidget* secondObject, MessageType messageType)
{
Uml::Sequence_Message_Type msgType = getMessageType();
//There shouldn't be second widget for a lost or a found message
if (msgType == Uml::sequence_message_lost || msgType == Uml::sequence_message_found) {
cleanMessage();
xclick = 0;
yclick = 0;
return;
}
//TODO shouldn't start position in the first widget be used also for normal messages
//and not only for creation?
int y = m_pMouseEvent->y();
if (messageType == CreationMessage) {
msgType = Uml::sequence_message_creation;
y = m_messageLine->startPoint().y();
}
MessageWidget* message = new MessageWidget(m_pUMLScene, m_firstObject,
secondObject, y, msgType);
cleanMessage();
m_pUMLScene->getMessageList().append(message);
FloatingTextWidget *ft = message->floatingTextWidget();
//TODO cancel doesn't cancel the creation of the message, only cancels setting an operation.
//Shouldn't it cancel also the whole creation?
ft->showOperationDialog();
message->setTextPosition();
m_pUMLScene->getWidgetList().append(ft);
UMLApp::app()->document()->setModified();
}
/**
* Sets the second object of the message using the specified widget and
* creates the message.
* The association is created and added to the view. The dialog to select
* the operation of the message is shown.
*
* @param secondObject The second object of the message.
* @param messageType The type of the message to create.
*/
void ToolBarStateMessages::setSecondWidget(ObjectWidget* secondObject, MessageType messageType)
{
Uml::Sequence_Message_Type msgType = getMessageType();
//There shouldn't be second widget for a lost or a found message
if (msgType == Uml::sequence_message_lost || msgType == Uml::sequence_message_found) {
cleanMessage();
xclick = 0;
yclick = 0;
return;
}
//TODO shouldn't start position in the first widget be used also for normal messages
//and not only for creation?
qreal y = m_pMouseEvent->scenePos().y();
if (messageType == CreationMessage) {
msgType = Uml::sequence_message_creation;
y = m_messageLine->line().p1().y();
}
MessageWidget* message = new MessageWidget(m_firstObject,
secondObject, msgType);
message->setPos(message->pos().x(), y);
setupMessageWidget(message);
cleanMessage();
}
/**
* Called when the release event happened on an empty space.
* Cleans the message.
* Empty spaces are not only actual empty spaces, but also associations.
*/
void ToolBarStateMessages::mouseReleaseEmpty()
{
Uml::Sequence_Message_Type msgType = getMessageType();
if (m_firstObject && msgType == Uml::sequence_message_lost) {
xclick = m_pMouseEvent->scenePos().x();
yclick = m_pMouseEvent->scenePos().y();
MessageWidget* message = new MessageWidget(m_firstObject, QPointF(xclick, yclick), msgType);
setupMessageWidget(message);
cleanMessage();
xclick = 0;
yclick = 0;
}
else if (!m_firstObject && msgType == Uml::sequence_message_found && xclick == 0 && yclick == 0) {
xclick = m_pMouseEvent->scenePos().x();
yclick = m_pMouseEvent->scenePos().y();
m_messageLine = new UMLSceneLineItem();
m_pUMLScene->addItem(m_messageLine);
qreal x = m_pMouseEvent->scenePos().x(), y = m_pMouseEvent->scenePos().y();
m_messageLine->setLine(x, y, x, y);
m_messageLine->setPen(QPen(m_pUMLScene->lineColor(), m_pUMLScene->lineWidth(), Qt::DashLine));
m_messageLine->setVisible(true);
}
else {
cleanMessage();
}
}
/**
* Called when the release event happened on an empty space.
* Cleans the message.
* Empty spaces are not only actual empty spaces, but also associations.
*/
void ToolBarStateMessages::mouseReleaseEmpty()
{
Uml::SequenceMessage::Enum msgType = getMessageType();
if (m_firstObject && msgType == Uml::SequenceMessage::Lost) {
xclick = m_pMouseEvent->scenePos().x();
yclick = m_pMouseEvent->scenePos().y();
MessageWidget* message = new MessageWidget(m_pUMLScene, m_firstObject, xclick, yclick, msgType);
setupMessageWidget(message);
cleanMessage();
xclick = 0;
yclick = 0;
}
else if (!m_firstObject && msgType == Uml::SequenceMessage::Found && xclick == 0 && yclick == 0) {
xclick = m_pMouseEvent->scenePos().x();
yclick = m_pMouseEvent->scenePos().y();
m_messageLine = new QGraphicsLineItem();
m_pUMLScene->addItem(m_messageLine);
qreal x = m_pMouseEvent->scenePos().x();
qreal y = m_pMouseEvent->scenePos().y();
m_messageLine->setLine(x, y, x, y);
m_messageLine->setPen(QPen(m_pUMLScene->lineColor(), m_pUMLScene->lineWidth(), Qt::DashLine));
m_messageLine->setVisible(true);
m_pUMLScene->activeView()->viewport()->setMouseTracking(true);
}
else {
cleanMessage();
}
}
/**
* Sets the first object of the message using the specified object.
* The temporal visual message is created and mouse tracking enabled, so
* mouse events will be delivered.
*
* @param firstObject The first object of the message.
*/
void ToolBarStateMessages::setFirstWidget(ObjectWidget* firstObject)
{
m_firstObject = firstObject;
Uml::Sequence_Message_Type msgType = getMessageType();
if (msgType == Uml::sequence_message_found && xclick!=0 && yclick!=0) {
MessageWidget* message = new MessageWidget(m_pUMLScene, m_firstObject,xclick, yclick, msgType);
cleanMessage();
m_pUMLScene->getMessageList().append(message);
xclick = 0;
yclick = 0;
FloatingTextWidget *ft = message->floatingTextWidget();
//TODO cancel doesn't cancel the creation of the message, only cancels setting an operation.
//Shouldn't it cancel also the whole creation?
ft->showOperationDialog();
message->setTextPosition();
m_pUMLScene->getWidgetList().append(ft);
UMLApp::app()->document()->setModified();
}
else {
m_messageLine = new UMLSceneLine(m_pUMLScene->canvas());
m_messageLine->setPoints(m_pMouseEvent->x(), m_pMouseEvent->y(), m_pMouseEvent->x(), m_pMouseEvent->y());
m_messageLine->setPen(QPen(m_pUMLScene->lineColor(), m_pUMLScene->lineWidth(), Qt::DashLine));
m_messageLine->setVisible(true);
m_pUMLScene->viewport()->setMouseTracking(true);
}
}
/**
* Called when the release event happened on a widget.
* If the button pressed isn't left button or the widget isn't an object
* widget, the message is cleaned.
* If the release event didn't happen on the line of an object and the first
* object wasn't selected, nothing is done. If the first object was already
* selected, a creation message is made.
* If the event happened on the line of an object, the first object or the
* second are set, depending on whether the first object was already set or
* not.
*/
void ToolBarStateMessages::mouseReleaseWidget()
{
//TODO When an association between UMLObjects of invalid types is made, an error message
//is shown. Shouldn't also a message be used here?
if (m_pMouseEvent->button() != Qt::LeftButton ||
getCurrentWidget()->baseType() != WidgetBase::wt_Object) {
cleanMessage();
return;
}
if (!m_isObjectWidgetLine && !m_firstObject) {
return;
}
if (!m_isObjectWidgetLine) {
setSecondWidget(static_cast<ObjectWidget*>(getCurrentWidget()), CreationMessage);
return;
}
if (!m_firstObject) {
setFirstWidget(static_cast<ObjectWidget*>(getCurrentWidget()));
} else {
setSecondWidget(static_cast<ObjectWidget*>(getCurrentWidget()), NormalMessage);
}
}
/**
* A widget was removed from the UMLView.
* If the widget removed was the current widget, the current widget is set
* to 0.
* Also, if it was the first object, the message is cleaned.
*/
void ToolBarStateMessages::slotWidgetRemoved(UMLWidget* widget)
{
ToolBarState::slotWidgetRemoved(widget);
if (widget == m_firstObject) {
cleanMessage();
}
}
/**
* Called when the current tool is changed to use another tool.
* Executes base method and cleans the message.
*/
void ToolBarStateMessages::cleanBeforeChange()
{
ToolBarStatePool::cleanBeforeChange();
cleanMessage();
}
/**
* Goes back to the initial state.
*/
void ToolBarStateMessages::init()
{
ToolBarStatePool::init();
cleanMessage();
}
