/* ============================================================================== This file is part of the JUCE library. Copyright (c) 2022 - Raw Material Software Limited JUCE is an open source library subject to commercial or open-source licensing. By using JUCE, you agree to the terms of both the JUCE 7 End-User License Agreement and JUCE Privacy Policy. End User License Agreement: www.juce.com/juce-7-licence Privacy Policy: www.juce.com/juce-privacy-policy Or: You may also use this code under the terms of the GPL v3 (see www.gnu.org/licenses). JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE DISCLAIMED. ============================================================================== */ namespace juce { //============================================================================== /** Base class for Component::Positioners that are based upon relative coordinates. @tags{GUI} */ class JUCE_API RelativeCoordinatePositionerBase : public Component::Positioner, public ComponentListener, public MarkerList::Listener { public: RelativeCoordinatePositionerBase (Component&); ~RelativeCoordinatePositionerBase() override; void componentMovedOrResized (Component&, bool, bool) override; void componentParentHierarchyChanged (Component&) override; void componentChildrenChanged (Component&) override; void componentBeingDeleted (Component&) override; void markersChanged (MarkerList*) override; void markerListBeingDeleted (MarkerList*) override; void apply(); bool addCoordinate (const RelativeCoordinate&); bool addPoint (const RelativePoint&); //============================================================================== /** Used for resolving a RelativeCoordinate expression in the context of a component. */ class ComponentScope : public Expression::Scope { public: ComponentScope (Component&); Expression getSymbolValue (const String& symbol) const override; void visitRelativeScope (const String& scopeName, Visitor&) const override; String getScopeUID() const override; protected: Component& component; Component* findSiblingComponent (const String& componentID) const; }; protected: virtual bool registerCoordinates() = 0; virtual void applyToComponentBounds() = 0; private: class DependencyFinderScope; friend class DependencyFinderScope; Array sourceComponents; Array sourceMarkerLists; bool registeredOk; void registerComponentListener (Component&); void registerMarkerListListener (MarkerList*); void unregisterListeners(); JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RelativeCoordinatePositionerBase) }; } // namespace juce