void CanvasParameters::setDataModel(canvas::Interface* _canvas) {
{
QSignalBlocker blocker(this);
mixin_data_model_type::setDataModel(_canvas);
if (_canvas->scene()) {
setScale(_canvas->scene()->size());
setUnit(_canvas->scene()->unit().abbreviation());
updateFrontend();
}
}
emit dataModelChanged();
}
void ProxyAction::changeContexts(QList<int> contexts)
{
LOG_TRACE("Context update request on proxy action", text());
if (m_contextActions.isEmpty())
{
LOG_TRACE("No backend actions stored here.");
return;
}
m_contexts = contexts;
QAction *oldAction = m_activeAction;
m_activeAction = 0;
for (int n = 0; n < m_contexts.size(); n++)
{
QAction *a = m_contextActions.value(m_contexts.at(n), 0);
if (a)
{
m_activeAction = a;
m_activeAction->setObjectName(a->text());
LOG_TRACE(QString("Backend action found: %1, shortcut: %2, proxy shortcut: %3")
.arg(m_activeAction->text())
.arg(m_activeAction->shortcut().toString())
.arg(m_action->shortcut().toString()));
break;
}
}
if (m_activeAction == oldAction && m_initialized)
{
updateFrontend();
LOG_TRACE("New backend action is the same as the active action; nothing to be done.");
return;
}
if (oldAction)
{
LOG_TRACE(QString("Disconnecting multi-context action from previous backend action in parent: %1")
.arg(oldAction->parent() ? oldAction->parent()->objectName() : "Unspecified parent"));
disconnect(oldAction, SIGNAL(changed()), this, SLOT(updateFrontend()));
disconnect(m_action, SIGNAL(triggered(bool)), oldAction, SIGNAL(triggered(bool)));
disconnect(m_action, SIGNAL(toggled(bool)), oldAction, SLOT(setChecked(bool)));
}
if (m_activeAction)
{
LOG_TRACE(QString("Connecting base action: %1, shortcut: %2, parent: %3")
.arg(m_activeAction->text())
.arg(m_action->shortcut().toString())
.arg(m_activeAction->parent() ? m_activeAction->parent()->objectName() : "Unspecified parent"));
connect(m_activeAction, SIGNAL(changed()), SLOT(updateFrontend()));
connect(m_action, SIGNAL(triggered(bool)), m_activeAction, SIGNAL(triggered(bool)));
connect(m_action, SIGNAL(toggled(bool)), m_activeAction, SLOT(setChecked(bool)));
updateFrontend();
m_initialized = true;
return;
}
else
{
LOG_TRACE("New backend action could not be found; action will be disabled in this context.");
}
m_action->setEnabled(false);
}
