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Added method ValueTree::getRoot()

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This commit is contained in:
jules 2017-01-01 11:58:29 +00:00
parent a15d79d4fe
commit 7eb534ae88
2 changed files with 22 additions and 7 deletions
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20
modules/juce_data_structures/values/juce_ValueTree.cpp
View file

@ -57,6 +57,11 @@ public:
} }
} }
SharedObject* getRoot() noexcept
{
return parent == nullptr ? this : parent->getRoot();
}
template <typename Method> template <typename Method>
void callListeners (Method method, ValueTree& tree) const void callListeners (Method method, ValueTree& tree) const
{ {
@ -483,9 +488,8 @@ public:
} }
//============================================================================== //==============================================================================
class SetPropertyAction : public UndoableAction struct SetPropertyAction : public UndoableAction
{ {
public:
SetPropertyAction (SharedObject* const so, const Identifier& propertyName, SetPropertyAction (SharedObject* const so, const Identifier& propertyName,
const var& newVal, const var& oldVal, bool isAdding, bool isDeleting, const var& newVal, const var& oldVal, bool isAdding, bool isDeleting,
ValueTree::Listener* listenerToExclude = nullptr) ValueTree::Listener* listenerToExclude = nullptr)
@ -547,9 +551,8 @@ public:
}; };
//============================================================================== //==============================================================================
class AddOrRemoveChildAction : public UndoableAction struct AddOrRemoveChildAction : public UndoableAction
{ {
public:
AddOrRemoveChildAction (SharedObject* parentObject, int index, SharedObject* newChild) AddOrRemoveChildAction (SharedObject* parentObject, int index, SharedObject* newChild)
: target (parentObject), : target (parentObject),
child (newChild != nullptr ? newChild : parentObject->children.getObjectPointer (index)), child (newChild != nullptr ? newChild : parentObject->children.getObjectPointer (index)),
@ -600,9 +603,8 @@ public:
}; };
//============================================================================== //==============================================================================
class MoveChildAction : public UndoableAction struct MoveChildAction : public UndoableAction
{ {
public:
MoveChildAction (SharedObject* parentObject, int fromIndex, int toIndex) noexcept MoveChildAction (SharedObject* parentObject, int fromIndex, int toIndex) noexcept
: parent (parentObject), startIndex (fromIndex), endIndex (toIndex) : parent (parentObject), startIndex (fromIndex), endIndex (toIndex)
{ {
@ -751,6 +753,12 @@ ValueTree ValueTree::getParent() const noexcept
: static_cast<SharedObject*> (nullptr)); : static_cast<SharedObject*> (nullptr));
} }
ValueTree ValueTree::getRoot() const noexcept
{
return ValueTree (object != nullptr ? object->getRoot()
: static_cast<SharedObject*> (nullptr));
}
ValueTree ValueTree::getSibling (const int delta) const noexcept ValueTree ValueTree::getSibling (const int delta) const noexcept
{ {
if (object == nullptr || object->parent == nullptr) if (object == nullptr || object->parent == nullptr)

9
modules/juce_data_structures/values/juce_ValueTree.h
View file

@ -320,6 +320,11 @@ public:
*/ */
ValueTree getParent() const noexcept; ValueTree getParent() const noexcept;
/** Recusrively finds the highest-level parent node that contains this one.
If the node has no parent, this will return itself.
*/
ValueTree getRoot() const noexcept;
/** Returns one of this node's siblings in its parent's child list. /** Returns one of this node's siblings in its parent's child list.
The delta specifies how far to move through the list, so a value of 1 would return the node The delta specifies how far to move through the list, so a value of 1 would return the node
@ -486,7 +491,9 @@ public:
/** Changes a named property of the node, but will not notify a specified listener of the change. /** Changes a named property of the node, but will not notify a specified listener of the change.
@see setProperty @see setProperty
*/ */
ValueTree& setPropertyExcludingListener (Listener* listenerToExclude, const Identifier& name, const var& newValue, UndoManager* undoManager); ValueTree& setPropertyExcludingListener (Listener* listenerToExclude,
const Identifier& name, const var& newValue,
UndoManager* undoManager);
/** Causes a property-change callback to be triggered for the specified property, /** Causes a property-change callback to be triggered for the specified property,
calling any listeners that are registered. calling any listeners that are registered.