void ItemDocument::requestStateSave(int actionTicket) {
if (m_bIsLoading) return;
cleanClearStack(m_redoStack);
if ((actionTicket >= 0) && (actionTicket == m_currentActionTicket)) {
delete m_currentState;
m_currentState = 0;
}
m_currentActionTicket = actionTicket;
//FIXME: it is possible, that we push something here, also nothing has changed, yet.
// to reproduce do:
// 1. select an item -> something is pushed onto undoStack, but nothing changed
// 2. select Undo -> pushed on redoStack, pop from undoStack
// 3. deselect item -> there is still something on the redoStack
//
// this way you can fill up the redoStack, as you like :-/
if (m_currentState)
m_undoStack.push(m_currentState);
m_currentState = new ItemDocumentData(type());
m_currentState->saveDocumentState(this);
if (!m_savedState)
m_savedState = m_currentState;
setModified(m_savedState != m_currentState);
emit undoRedoStateChanged();
//FIXME To resize undo queue, have to pop and push everything
// In Qt4 QStack is used and QStack inherits QVector, that should
// make it a bit more easy
int maxUndo = KTLConfig::maxUndo();
if (maxUndo <= 0 || m_undoStack.count() < (unsigned)maxUndo)
return;
IDDStack tempStack;
int pushed = 0;
while (!m_undoStack.isEmpty() && pushed < maxUndo) {
tempStack.push(m_undoStack.pop());
pushed++;
}
cleanClearStack(m_undoStack);
while (!tempStack.isEmpty())
m_undoStack.push(tempStack.pop());
}
void ItemDocument::undo() {
ItemDocumentData *idd = m_undoStack.pop();
if (!idd) return;
if (m_currentState) m_redoStack.push(m_currentState);
idd->restoreDocument(this);
m_currentState = idd;
setModified(m_savedState != m_currentState);
emit undoRedoStateChanged();
}
void DocManager::slotViewFocused( View *view )
{
ViewContainer * vc = static_cast<ViewContainer*>(KTechlab::self()->tabWidget()->currentWidget());
if (!vc)
view = 0l;
if (!view)
return;
// This function can get called with a view that is not in the current view
// container (such as when the user right clicks and then the popup is
// destroyed - not too sure why, but this is the easiest way to fix it).
if ( view->viewContainer() != vc )
view = vc->activeView();
if ( !view || (View*)p_focusedView == view )
return;
if (p_focusedView)
slotViewUnfocused();
p_focusedView = view;
if ( TextView * textView = dynamic_cast<TextView*>((View*)p_focusedView) )
KTechlab::self()->factory()->addClient( textView->kateView() );
else
KTechlab::self()->factory()->addClient( p_focusedView );
Document *document = view->document();
connect( document, SIGNAL(undoRedoStateChanged()), KTechlab::self(), SLOT(slotDocUndoRedoChanged()) );
p_connectedDocument = document;
if ( document->type() == Document::dt_circuit ||
document->type() == Document::dt_flowcode ||
document->type() == Document::dt_mechanics )
{
ItemDocument *cvb = static_cast<ItemDocument*>(view->document());
ItemInterface::self()->slotItemDocumentChanged(cvb);
}
KTechlab::self()->slotDocUndoRedoChanged();
KTechlab::self()->slotDocModifiedChanged();
KTechlab::self()->requestUpdateCaptions();
}
void DocManager::slotViewUnfocused()
{
if ( !KTechlab::self() )
return;
KTechlab::self()->removeGUIClients();
disableContextActions();
if (!p_focusedView)
return;
if (p_connectedDocument)
{
disconnect( p_connectedDocument, SIGNAL(undoRedoStateChanged()), KTechlab::self(), SLOT(slotDocUndoRedoChanged()) );
p_connectedDocument = 0;
}
ItemInterface::self()->slotItemDocumentChanged(0l);
p_focusedView = 0;
// KTechlab::self()->setCaption( 0 );
KTechlab::self()->requestUpdateCaptions();
}
